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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
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<a href="RtAudio_8cxx.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * UNIVERSITAT POMPEU FABRA</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * along with this program; if not, write to the Free Software</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">/************************************************************************/</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment">/************************************************************************/</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment">// RtAudio: Version 2.1.1, 24 October 2002</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#include "<a class="code" href="RtAudio_8hxx.html">RtAudio.hxx</a>"</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#include <vector></span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#include <cstdio></span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#include <iostream></span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment">// Static variable definitions.</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> RtAudio :: SAMPLE_RATES[] = {</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  4000, 5512, 8000, 9600, 11025, 16000, 22050,</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  32000, 44100, 48000, 88200, 96000, 176400, 192000</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> };</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">const</span> <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RtAudio::RTAUDIO_FORMAT</a> <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RtAudio :: RTAUDIO_SINT8</a> = 1;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">const</span> <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RtAudio::RTAUDIO_FORMAT</a> <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RtAudio :: RTAUDIO_SINT16</a> = 2;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">const</span> <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RtAudio::RTAUDIO_FORMAT</a> <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RtAudio :: RTAUDIO_SINT24</a> = 4;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">const</span> <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RtAudio::RTAUDIO_FORMAT</a> <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RtAudio :: RTAUDIO_SINT32</a> = 8;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">const</span> <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RtAudio::RTAUDIO_FORMAT</a> <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RtAudio :: RTAUDIO_FLOAT32</a> = 16;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keyword">const</span> <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RtAudio::RTAUDIO_FORMAT</a> <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RtAudio :: RTAUDIO_FLOAT64</a> = 32;</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor">#if defined(__WINDOWS_DS__) || defined(__WINDOWS_ASIO__)</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor"></span><span class="preprocessor"> #define MUTEX_INITIALIZE(A) InitializeCriticalSection(A)</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"></span><span class="preprocessor"> #define MUTEX_LOCK(A) EnterCriticalSection(A)</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor"></span><span class="preprocessor"> #define MUTEX_UNLOCK(A) LeaveCriticalSection(A)</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"></span><span class="preprocessor">#else // pthread API</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="code" href="RtAudio_8cxx.html#af30c971a89224adb16687a42e47e24fd"> 85</a></span> <span class="preprocessor"></span><span class="preprocessor"> #define MUTEX_INITIALIZE(A) pthread_mutex_init(A, NULL)</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"><a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157"> 86</a></span> <span class="preprocessor"></span><span class="preprocessor"> #define MUTEX_LOCK(A) pthread_mutex_lock(A)</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9"> 87</a></span> <span class="preprocessor"></span><span class="preprocessor"> #define MUTEX_UNLOCK(A) pthread_mutex_unlock(A)</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// *************************************************** //</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment">//</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// Public common (OS-independent) methods.</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment">//</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// *************************************************** //</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="code" href="classRtAudio.html#a987fe398ce3152563545c9781991ed89"> 96</a></span> <a class="code" href="classRtAudio.html#a987fe398ce3152563545c9781991ed89" title="The default constructor.">RtAudio :: RtAudio</a>()</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> {</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  initialize();</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">if</span> (nDevices <= 0) {</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  sprintf(message, <span class="stringliteral">"RtAudio: no audio devices found!"</span>);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4af267eb2d710f33d649ba840eeab6ff82">RtError::NO_DEVICES_FOUND</a>);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> }</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="code" href="classRtAudio.html#a53a22807efc1b12df0fa398fe3a37c58"> 106</a></span> <a class="code" href="classRtAudio.html#a987fe398ce3152563545c9781991ed89" title="The default constructor.">RtAudio :: RtAudio</a>(<span class="keywordtype">int</span> *streamId,</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">int</span> outputDevice, <span class="keywordtype">int</span> outputChannels,</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordtype">int</span> inputDevice, <span class="keywordtype">int</span> inputChannels,</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RTAUDIO_FORMAT</a> format, <span class="keywordtype">int</span> sampleRate,</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordtype">int</span> *bufferSize, <span class="keywordtype">int</span> numberOfBuffers)</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  initialize();</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">if</span> (nDevices <= 0) {</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  sprintf(message, <span class="stringliteral">"RtAudio: no audio devices found!"</span>);</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4af267eb2d710f33d649ba840eeab6ff82">RtError::NO_DEVICES_FOUND</a>);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  *streamId = <a class="code" href="classRtAudio.html#a0bdbb8e502aa5932cc74bad537f99e30" title="A public method for opening a stream with the specified parameters.">openStream</a>(outputDevice, outputChannels, inputDevice, inputChannels,</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  format, sampleRate, bufferSize, numberOfBuffers);</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">catch</span> (<a class="code" href="classRtError.html" title="Exception handling class for RtAudio.">RtError</a> &exception) {</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// deallocate the RTAUDIO_DEVICE structures</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">if</span> (devices) free(devices);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">throw</span> exception;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  }</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> }</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a name="l00130"></a><span class="lineno"><a class="code" href="classRtAudio.html#aa8a9716fd64680657ef69c9465442a2f"> 130</a></span> <a class="code" href="classRtAudio.html#aa8a9716fd64680657ef69c9465442a2f" title="The destructor.">RtAudio :: ~RtAudio</a>()</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">// close any existing streams</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">while</span> ( streams.size() )</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <a class="code" href="classRtAudio.html#a9b25382cabd65d739f2718f8647f1066" title="Public method which closes a stream and frees any associated buffers.">closeStream</a>( streams.begin()->first );</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="comment">// deallocate the RTAUDIO_DEVICE structures</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">if</span> (devices) free(devices);</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> }</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a name="l00140"></a><span class="lineno"><a class="code" href="classRtAudio.html#a0bdbb8e502aa5932cc74bad537f99e30"> 140</a></span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a0bdbb8e502aa5932cc74bad537f99e30" title="A public method for opening a stream with the specified parameters.">RtAudio :: openStream</a>(<span class="keywordtype">int</span> outputDevice, <span class="keywordtype">int</span> outputChannels,</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordtype">int</span> inputDevice, <span class="keywordtype">int</span> inputChannels,</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RTAUDIO_FORMAT</a> format, <span class="keywordtype">int</span> sampleRate,</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">int</span> *bufferSize, <span class="keywordtype">int</span> numberOfBuffers)</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> {</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">static</span> <span class="keywordtype">int</span> streamKey = 0; <span class="comment">// Unique stream identifier ... OK for multiple instances.</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span> (outputChannels < 1 && inputChannels < 1) {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  sprintf(message,<span class="stringliteral">"RtAudio: one or both 'channel' parameters must be greater than zero."</span>);</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4aa3eabf0f71120beaba94148a1b78fed6">RtError::INVALID_PARAMETER</a>);</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  }</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">if</span> ( formatBytes(format) == 0 ) {</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  sprintf(message,<span class="stringliteral">"RtAudio: 'format' parameter value is undefined."</span>);</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4aa3eabf0f71120beaba94148a1b78fed6">RtError::INVALID_PARAMETER</a>);</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">if</span> ( outputChannels > 0 ) {</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (outputDevice > nDevices || outputDevice < 0) {</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  sprintf(message,<span class="stringliteral">"RtAudio: 'outputDevice' parameter value (%d) is invalid."</span>, outputDevice);</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4aa3eabf0f71120beaba94148a1b78fed6">RtError::INVALID_PARAMETER</a>);</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> ( inputChannels > 0 ) {</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">if</span> (inputDevice > nDevices || inputDevice < 0) {</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  sprintf(message,<span class="stringliteral">"RtAudio: 'inputDevice' parameter value (%d) is invalid."</span>, inputDevice);</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4aa3eabf0f71120beaba94148a1b78fed6">RtError::INVALID_PARAMETER</a>);</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="comment">// Allocate a new stream structure.</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) calloc(1, <span class="keyword">sizeof</span>(RTAUDIO_STREAM));</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">if</span> (stream == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ab4f813e5a36905c89d4081a59497432e">RtError::MEMORY_ERROR</a>);</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  stream->mode = UNINITIALIZED;</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="RtAudio_8cxx.html#af30c971a89224adb16687a42e47e24fd">MUTEX_INITIALIZE</a>(&stream->mutex);</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordtype">bool</span> result = FAILURE;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordtype">int</span> device, defaultDevice = 0;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  STREAM_MODE mode;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordtype">int</span> channels;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">if</span> ( outputChannels > 0 ) {</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  mode = OUTPUT;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  channels = outputChannels;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">if</span> ( outputDevice == 0 ) { <span class="comment">// Try default device first.</span></div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  defaultDevice = getDefaultOutputDevice();</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  device = defaultDevice;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  }</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  device = outputDevice - 1;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=-1; i<nDevices; i++) {</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">if</span> (i >= 0 ) { </div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">if</span> ( i == defaultDevice ) <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  device = i;</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  }</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">if</span> (devices[device].probed == <span class="keyword">false</span>) {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// If the device wasn't successfully probed before, try it</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="comment">// again now.</span></div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  clearDeviceInfo(&devices[device]);</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  probeDeviceInfo(&devices[device]);</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  }</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">if</span> ( devices[device].probed )</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  result = probeDeviceOpen(device, stream, mode, channels, sampleRate,</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  format, bufferSize, numberOfBuffers);</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">if</span> (result == SUCCESS) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span> ( outputDevice > 0 ) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  }</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">if</span> ( inputChannels > 0 && ( result == SUCCESS || outputChannels <= 0 ) ) {</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  mode = INPUT;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  channels = inputChannels;</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">if</span> ( inputDevice == 0 ) { <span class="comment">// Try default device first.</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  defaultDevice = getDefaultInputDevice();</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  device = defaultDevice;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  }</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  device = inputDevice - 1;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=-1; i<nDevices; i++) {</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">if</span> (i >= 0 ) { </div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">if</span> ( i == defaultDevice ) <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  device = i;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  }</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">if</span> (devices[device].probed == <span class="keyword">false</span>) {</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="comment">// If the device wasn't successfully probed before, try it</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">// again now.</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  clearDeviceInfo(&devices[device]);</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  probeDeviceInfo(&devices[device]);</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  }</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">if</span> ( devices[device].probed )</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  result = probeDeviceOpen(device, stream, mode, channels, sampleRate,</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  format, bufferSize, numberOfBuffers);</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span> (result == SUCCESS) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">if</span> ( outputDevice > 0 ) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  }</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  streams[++streamKey] = (<span class="keywordtype">void</span> *) stream;</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">if</span> ( result == SUCCESS )</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">return</span> streamKey;</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// If we get here, all attempted probes failed. Close any opened</span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">// devices and delete the allocated stream.</span></div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <a class="code" href="classRtAudio.html#a9b25382cabd65d739f2718f8647f1066" title="Public method which closes a stream and frees any associated buffers.">closeStream</a>(streamKey);</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">if</span> ( ( outputDevice == 0 && outputChannels > 0 )</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  || ( inputDevice == 0 && inputChannels > 0 ) )</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  sprintf(message,<span class="stringliteral">"RtAudio: no devices found for given parameters."</span>);</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  sprintf(message,<span class="stringliteral">"RtAudio: unable to open specified device(s) with given stream parameters."</span>);</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4aa3eabf0f71120beaba94148a1b78fed6">RtError::INVALID_PARAMETER</a>);</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> }</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div>
<div class="line"><a name="l00263"></a><span class="lineno"><a class="code" href="classRtAudio.html#abd9795153ecf7c4542b388f7672fb93f"> 263</a></span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#abd9795153ecf7c4542b388f7672fb93f" title="A public method which returns the number of audio devices found.">RtAudio :: getDeviceCount</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> {</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">return</span> nDevices;</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> }</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div>
<div class="line"><a name="l00268"></a><span class="lineno"><a class="code" href="classRtAudio.html#a8fabeb4811c2e22908b0f2a54a3ed261"> 268</a></span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a8fabeb4811c2e22908b0f2a54a3ed261" title="Fill a user-supplied RTAUDIO_DEVICE structure for a specified device number.">RtAudio :: getDeviceInfo</a>(<span class="keywordtype">int</span> device, <a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html" title="The public device information structure for passing queried values.">RTAUDIO_DEVICE</a> *info)</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> {</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">if</span> (device > nDevices || device < 1) {</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  sprintf(message, <span class="stringliteral">"RtAudio: invalid device specifier (%d)!"</span>, device);</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ad6064062066fffdba258237a7c2159b1">RtError::INVALID_DEVICE</a>);</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> </div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordtype">int</span> deviceIndex = device - 1;</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="comment">// If the device wasn't successfully probed before, try it now (or again).</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">if</span> (devices[deviceIndex].probed == <span class="keyword">false</span>) {</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  clearDeviceInfo(&devices[deviceIndex]);</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  probeDeviceInfo(&devices[deviceIndex]);</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  }</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// Clear the info structure.</span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  memset(info, 0, <span class="keyword">sizeof</span>(<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html" title="The public device information structure for passing queried values.">RTAUDIO_DEVICE</a>));</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> </div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  strncpy(info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a92049c89bab55e94c17a638e7793f676">name</a>, devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a92049c89bab55e94c17a638e7793f676">name</a>, 128);</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a61c5ed2e95d3c588d86ab5394a64546d">probed</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a61c5ed2e95d3c588d86ab5394a64546d">probed</a>;</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">if</span> ( info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a61c5ed2e95d3c588d86ab5394a64546d">probed</a> == <span class="keyword">true</span> ) {</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a5ddfe7812a00a0af1b6cc89bc8d4b925">maxOutputChannels</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a5ddfe7812a00a0af1b6cc89bc8d4b925">maxOutputChannels</a>;</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a945aaa73a9bfaa6feba3e41d7658f0b8">maxInputChannels</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a945aaa73a9bfaa6feba3e41d7658f0b8">maxInputChannels</a>;</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a063d3c6d98e9505310c68a5d474b8ee2">maxDuplexChannels</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a063d3c6d98e9505310c68a5d474b8ee2">maxDuplexChannels</a>;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a311268e7193acb6f10bb61e931487cd8">minOutputChannels</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a311268e7193acb6f10bb61e931487cd8">minOutputChannels</a>;</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3cf966b3864c6c2b6c319e51ecf4bd50">minInputChannels</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3cf966b3864c6c2b6c319e51ecf4bd50">minInputChannels</a>;</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a4a668afd5230a95981ed62a419648d1d">minDuplexChannels</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a4a668afd5230a95981ed62a419648d1d">minDuplexChannels</a>;</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#adf2e8255619275a6db075e90aac549d8">hasDuplexSupport</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#adf2e8255619275a6db075e90aac549d8">hasDuplexSupport</a>;</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a1891cec4a3ae9eb0897042a9c13f689e">nSampleRates</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a1891cec4a3ae9eb0897042a9c13f689e">nSampleRates</a>;</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">if</span> (info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a1891cec4a3ae9eb0897042a9c13f689e">nSampleRates</a> == -1) {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3a1e2166efd16585ea781b1a25d191bd">sampleRates</a>[0] = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3a1e2166efd16585ea781b1a25d191bd">sampleRates</a>[0];</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3a1e2166efd16585ea781b1a25d191bd">sampleRates</a>[1] = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3a1e2166efd16585ea781b1a25d191bd">sampleRates</a>[1];</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  }</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a1891cec4a3ae9eb0897042a9c13f689e">nSampleRates</a>; i++)</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3a1e2166efd16585ea781b1a25d191bd">sampleRates</a>[i] = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3a1e2166efd16585ea781b1a25d191bd">sampleRates</a>[i];</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  }</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#aa25b252f8e726b2731a6aee8d98fb57d">nativeFormats</a> = devices[deviceIndex].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#aa25b252f8e726b2731a6aee8d98fb57d">nativeFormats</a>;</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordflow">if</span> ( deviceIndex == getDefaultOutputDevice() ||</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  deviceIndex == getDefaultInputDevice() )</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  info-><a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3a009fecc35f20ffa767076d5a556f85">isDefault</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  }</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> }</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div>
<div class="line"><a name="l00314"></a><span class="lineno"><a class="code" href="classRtAudio.html#abcf2a2f1c9362ebad7193aca6f2b9eeb"> 314</a></span> <span class="keywordtype">char</span> * <span class="keyword">const</span> <a class="code" href="classRtAudio.html#abcf2a2f1c9362ebad7193aca6f2b9eeb" title="A public method which returns a pointer to the buffer for an open stream.">RtAudio :: getStreamBuffer</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> {</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">return</span> stream->userBuffer;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> }</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="preprocessor">#if defined(__LINUX_ALSA__) || defined(__LINUX_OSS__) || defined(__IRIX_AL__)</span></div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">void</span> *callbackHandler(<span class="keywordtype">void</span> * ptr);</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> </div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#ade4c600afb2fe5c8b568db7845c7c494" title="A public method which sets a user-defined callback function for a given stream.">RtAudio :: setStreamCallback</a>(<span class="keywordtype">int</span> streamId, RTAUDIO_CALLBACK callback, <span class="keywordtype">void</span> *userData)</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> {</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *info = (<a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *) &stream->callbackInfo;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  if ( info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> ) {</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  sprintf(message, <span class="stringliteral">"RtAudio: A callback is already set for this stream!"</span>);</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  }</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> </div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  info-><a class="code" href="structCALLBACK__INFO.html#a654bf7533d89783acad1e2da499e2baf">callback</a> = (<span class="keywordtype">void</span> *) callback;</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  info-><a class="code" href="structCALLBACK__INFO.html#a5341b437d7ab1abf412ca00b063bca31">userData</a> = userData;</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  info-><a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a> = (<span class="keywordtype">void</span> *) <span class="keyword">this</span>;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  info-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a> = streamId;</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordtype">int</span> err = pthread_create(&info-><a class="code" href="structCALLBACK__INFO.html#acdf05394473133131641e7b9d23be278">thread</a>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, callbackHandler, &stream->callbackInfo);</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> </div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">if</span> (err) {</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  sprintf(message, <span class="stringliteral">"RtAudio: error starting callback thread!"</span>);</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4aeb6282f991e2d93ab294a4272fc3f6c6">RtError::THREAD_ERROR</a>);</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  }</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> }</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> </div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#aebae35586a358dd4c6826801031479e1" title="A public method which cancels a callback process and function for a given stream.">RtAudio :: cancelStreamCallback</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> {</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>( streamId );</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> </div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  stream->callbackInfo.usingCallback = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  pthread_cancel(stream->callbackInfo.thread);</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  pthread_join(stream->callbackInfo.thread, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  stream->callbackInfo.thread = 0;</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  stream->callbackInfo.callback = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  stream->callbackInfo.userData = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> </div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  }</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> }</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> </div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="comment">// *************************************************** //</span></div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="comment">//</span></div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="comment">// OS/API-specific methods.</span></div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="comment">//</span></div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="comment">// *************************************************** //</span></div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="preprocessor">#if defined(__MACOSX_CORE__)</span></div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> <span class="comment">// The OS X CoreAudio API is designed to use a separate callback</span></div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="comment">// procedure for each of its audio devices. A single RtAudio duplex</span></div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="comment">// stream using two different devices is supported here, though it</span></div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="comment">// cannot be guaranteed to always behave correctly because we cannot</span></div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="comment">// synchronize these two callbacks. This same functionality can be</span></div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="comment">// achieved with better synchrony by opening two separate streams for</span></div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> <span class="comment">// the devices and using RtAudio blocking calls (i.e. tickStream()).</span></div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="comment">//</span></div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="comment">// The possibility of having multiple RtAudio streams accessing the</span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> <span class="comment">// same CoreAudio device is not currently supported. The problem</span></div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="comment">// involves the inability to install our callbackHandler function for</span></div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="comment">// the same device more than once. I experimented with a workaround</span></div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="comment">// for this, but it requires an additional buffer for mixing output</span></div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="comment">// data before filling the CoreAudio device buffer. In the end, I</span></div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="comment">// decided it wasn't worth supporting.</span></div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="comment">//</span></div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="comment">// Property listeners are currently not used. The issue is what could</span></div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="comment">// be done if a critical stream parameter (buffer size, sample rate,</span></div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="comment">// device disconnect) notification arrived. The listeners entail</span></div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="comment">// quite a bit of extra code and most likely, a user program wouldn't</span></div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="comment">// be prepared for the result anyway. Some initial listener code is</span></div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="comment">// commented out.</span></div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="keywordtype">void</span> RtAudio :: initialize(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> {</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  OSStatus err = noErr;</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  UInt32 dataSize;</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  AudioDeviceID *deviceList = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  nDevices = 0;</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="comment">// Find out how many audio devices there are, if any.</span></div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &dataSize, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSX error getting device info!"</span>);</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a8947d0a2e2a84ecf3646271844e06a6b">RtError::SYSTEM_ERROR</a>);</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  }</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> </div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  nDevices = dataSize / <span class="keyword">sizeof</span>(AudioDeviceID);</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">if</span> (nDevices == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span> </div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="comment">// Allocate the RTAUDIO_DEVICE structures.</span></div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  devices = (RTAUDIO_DEVICE *) calloc(nDevices, <span class="keyword">sizeof</span>(RTAUDIO_DEVICE));</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">if</span> (devices == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ab4f813e5a36905c89d4081a59497432e">RtError::MEMORY_ERROR</a>);</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  }</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> </div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="comment">// Make space for the devices we are about to get.</span></div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  deviceList = (AudioDeviceID *) malloc( dataSize );</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordflow">if</span> (deviceList == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ab4f813e5a36905c89d4081a59497432e">RtError::MEMORY_ERROR</a>);</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  }</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="comment">// Get the array of AudioDeviceIDs.</span></div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &dataSize, (<span class="keywordtype">void</span> *) deviceList);</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  free(deviceList);</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSX error getting device properties!"</span>);</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a8947d0a2e2a84ecf3646271844e06a6b">RtError::SYSTEM_ERROR</a>);</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  }</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> </div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="comment">// Write device identifiers to device structures and then</span></div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="comment">// probe the device capabilities.</span></div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<nDevices; i++) {</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  devices[i].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#ae0ba0362e0084e4cdd2f96ee91260309">id</a>[0] = deviceList[i];</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="comment">//probeDeviceInfo(&devices[i]);</span></div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  }</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> </div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  free(deviceList);</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> }</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> </div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="keywordtype">int</span> RtAudio :: getDefaultInputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> {</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  AudioDeviceID id;</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  UInt32 dataSize = <span class="keyword">sizeof</span>( AudioDeviceID );</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> </div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  OSStatus result = AudioHardwareGetProperty( kAudioHardwarePropertyDefaultInputDevice,</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  &dataSize, &<span class="keywordtype">id</span> );</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> </div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordflow">if</span> (result != noErr) {</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting default input device."</span> );</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  }</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span> </div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<nDevices; i++ ) {</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="keywordflow">if</span> ( <span class="keywordtype">id</span> == devices[i].<span class="keywordtype">id</span>[0] ) <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  }</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> </div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> }</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> </div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> <span class="keywordtype">int</span> RtAudio :: getDefaultOutputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> {</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  AudioDeviceID id;</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  UInt32 dataSize = <span class="keyword">sizeof</span>( AudioDeviceID );</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> </div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  OSStatus result = AudioHardwareGetProperty( kAudioHardwarePropertyDefaultOutputDevice,</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  &dataSize, &<span class="keywordtype">id</span> );</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> </div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keywordflow">if</span> (result != noErr) {</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting default output device."</span> );</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  }</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> </div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<nDevices; i++ ) {</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordflow">if</span> ( <span class="keywordtype">id</span> == devices[i].<span class="keywordtype">id</span>[0] ) <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  }</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> </div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> }</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> </div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> deviceSupportsFormat( AudioDeviceID <span class="keywordtype">id</span>, <span class="keywordtype">bool</span> isInput,</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  AudioStreamBasicDescription *desc, <span class="keywordtype">bool</span> isDuplex )</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> {</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  OSStatus result = noErr;</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  UInt32 dataSize = <span class="keyword">sizeof</span>( AudioStreamBasicDescription );</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> </div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  result = AudioDeviceGetProperty( <span class="keywordtype">id</span>, 0, isInput,</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  kAudioDevicePropertyStreamFormatSupported,</div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  &dataSize, desc );</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span> </div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordflow">if</span> (result == kAudioHardwareNoError) {</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordflow">if</span> ( isDuplex ) {</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  result = AudioDeviceGetProperty( <span class="keywordtype">id</span>, 0, <span class="keyword">true</span>,</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  kAudioDevicePropertyStreamFormatSupported,</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  &dataSize, desc );</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> </div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> </div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordflow">if</span> (result != kAudioHardwareNoError)</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  }</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  }</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span> </div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span> }</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> </div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span> <span class="keywordtype">void</span> RtAudio :: probeDeviceInfo(RTAUDIO_DEVICE *info)</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span> {</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  OSStatus err = noErr;</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> </div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="comment">// Get the device manufacturer and name.</span></div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="keywordtype">char</span> name[256];</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordtype">char</span> fullname[512];</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  UInt32 dataSize = 256;</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  err = AudioDeviceGetProperty( info->id[0], 0, <span class="keyword">false</span>,</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  kAudioDevicePropertyDeviceManufacturer,</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  &dataSize, name );</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting device manufacturer."</span> );</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  }</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  strncpy(fullname, name, 256);</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  strcat(fullname, <span class="stringliteral">": "</span> );</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span> </div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  dataSize = 256;</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  err = AudioDeviceGetProperty( info->id[0], 0, <span class="keyword">false</span>,</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  kAudioDevicePropertyDeviceName,</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  &dataSize, name );</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting device name."</span> );</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  }</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  strncat(fullname, name, 254);</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  strncat(info->name, fullname, 128);</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> </div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="comment">// Get output channel information.</span></div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i, minChannels, maxChannels, nStreams = 0;</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  AudioBufferList *bufferList = nil;</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  err = AudioDeviceGetPropertyInfo( info->id[0], 0, <span class="keyword">false</span>,</div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  kAudioDevicePropertyStreamConfiguration,</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  &dataSize, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="keywordflow">if</span> (err == noErr && dataSize > 0) {</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  bufferList = (AudioBufferList *) malloc( dataSize );</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="keywordflow">if</span> (bufferList == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  }</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span> </div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  err = AudioDeviceGetProperty( info->id[0], 0, <span class="keyword">false</span>,</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  kAudioDevicePropertyStreamConfiguration,</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  &dataSize, bufferList );</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">if</span> (err == noErr) {</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  maxChannels = 0;</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  minChannels = 1000;</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  nStreams = bufferList->mNumberBuffers;</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="keywordflow">for</span> ( i=0; i<nStreams; i++ ) {</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  maxChannels += bufferList->mBuffers[i].mNumberChannels;</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keywordflow">if</span> ( bufferList->mBuffers[i].mNumberChannels < minChannels )</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  minChannels = bufferList->mBuffers[i].mNumberChannels;</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  }</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  }</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  }</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keywordflow">if</span> (err != noErr || dataSize <= 0) {</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting output channels for device (%s)."</span>, info->name );</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  }</div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span> </div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  free (bufferList);</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  <span class="keywordflow">if</span> ( nStreams ) {</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="keywordflow">if</span> ( maxChannels > 0 )</div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  info->maxOutputChannels = maxChannels;</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="keywordflow">if</span> ( minChannels > 0 )</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  info->minOutputChannels = minChannels;</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  }</div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span> </div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="comment">// Get input channel information.</span></div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  bufferList = nil;</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  err = AudioDeviceGetPropertyInfo( info->id[0], 0, <span class="keyword">true</span>,</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  kAudioDevicePropertyStreamConfiguration,</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  &dataSize, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="keywordflow">if</span> (err == noErr && dataSize > 0) {</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  bufferList = (AudioBufferList *) malloc( dataSize );</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="keywordflow">if</span> (bufferList == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  }</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  err = AudioDeviceGetProperty( info->id[0], 0, <span class="keyword">true</span>,</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  kAudioDevicePropertyStreamConfiguration,</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  &dataSize, bufferList );</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  <span class="keywordflow">if</span> (err == noErr) {</div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  maxChannels = 0;</div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  minChannels = 1000;</div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  nStreams = bufferList->mNumberBuffers;</div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  <span class="keywordflow">for</span> ( i=0; i<nStreams; i++ ) {</div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="keywordflow">if</span> ( bufferList->mBuffers[i].mNumberChannels < minChannels )</div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  minChannels = bufferList->mBuffers[i].mNumberChannels;</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  maxChannels += bufferList->mBuffers[i].mNumberChannels;</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  }</div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  }</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  }</div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="keywordflow">if</span> (err != noErr || dataSize <= 0) {</div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting input channels for device (%s)."</span>, info->name );</div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  }</div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> </div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  free (bufferList);</div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="keywordflow">if</span> ( nStreams ) {</div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  <span class="keywordflow">if</span> ( maxChannels > 0 )</div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  info->maxInputChannels = maxChannels;</div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  <span class="keywordflow">if</span> ( minChannels > 0 )</div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  info->minInputChannels = minChannels;</div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  }</div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span> </div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="comment">// If device opens for both playback and capture, we determine the channels.</span></div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keywordflow">if</span> (info->maxOutputChannels > 0 && info->maxInputChannels > 0) {</div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  info->hasDuplexSupport = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  info->maxDuplexChannels = (info->maxOutputChannels > info->maxInputChannels) ?</div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  info->maxInputChannels : info->maxOutputChannels;</div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  info->minDuplexChannels = (info->minOutputChannels > info->minInputChannels) ?</div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  info->minInputChannels : info->minOutputChannels;</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  }</div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span> </div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <span class="comment">// Probe the device sample rate and data format parameters. The</span></div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="comment">// core audio query mechanism is performed on a "stream"</span></div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="comment">// description, which can have a variable number of channels and</span></div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <span class="comment">// apply to input or output only.</span></div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span> </div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="comment">// Create a stream description structure.</span></div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  AudioStreamBasicDescription description;</div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  dataSize = <span class="keyword">sizeof</span>( AudioStreamBasicDescription );</div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  memset(&description, 0, <span class="keyword">sizeof</span>(AudioStreamBasicDescription));</div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="keywordtype">bool</span> isInput = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="keywordflow">if</span> ( info->maxOutputChannels == 0 ) isInput = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="keywordtype">bool</span> isDuplex = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  <span class="keywordflow">if</span> ( info->maxDuplexChannels > 0 ) isDuplex = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span> </div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="comment">// Determine the supported sample rates.</span></div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  info->nSampleRates = 0;</div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keywordflow">for</span> (i=0; i<<a class="code" href="classRtAudio.html#a7405def6b99ff5d2c0f95d885514d61ca30fa0221e6d99b2845bdff75d1894289">MAX_SAMPLE_RATES</a>; i++) {</div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  description.mSampleRate = (double) SAMPLE_RATES[i];</div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  info->sampleRates[info->nSampleRates++] = SAMPLE_RATES[i];</div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  }</div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span> </div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  <span class="keywordflow">if</span> (info->nSampleRates == 0) {</div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  sprintf( message, <span class="stringliteral">"RtAudio: No supported sample rates found for OSX device (%s)."</span>, info->name );</div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  }</div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span> </div>
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <span class="comment">// Check for continuous sample rate support.</span></div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  description.mSampleRate = kAudioStreamAnyRate;</div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) ) {</div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  info->sampleRates[1] = info->sampleRates[info->nSampleRates-1];</div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  info->nSampleRates = -1;</div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  }</div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span> </div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <span class="comment">// Determine the supported data formats.</span></div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  info->nativeFormats = 0;</div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  description.mFormatID = kAudioFormatLinearPCM;</div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  description.mBitsPerChannel = 8;</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  description.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsPacked | kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  description.mFormatFlags &= ~kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  }</div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span> </div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  description.mBitsPerChannel = 16;</div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  description.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  description.mFormatFlags &= ~kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  }</div>
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span> </div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  description.mBitsPerChannel = 32;</div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  description.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  description.mFormatFlags &= ~kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  }</div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span> </div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  description.mBitsPerChannel = 24;</div>
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  description.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsAlignedHigh | kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>;</div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  description.mFormatFlags &= ~kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>;</div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  }</div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span> </div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  description.mBitsPerChannel = 32;</div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  description.mFormatFlags = kLinearPCMFormatFlagIsFloat | kLinearPCMFormatFlagIsPacked | kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>;</div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  description.mFormatFlags &= ~kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>;</div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  }</div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span> </div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  description.mBitsPerChannel = 64;</div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  description.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>;</div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  description.mFormatFlags &= ~kLinearPCMFormatFlagIsBigEndian;</div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <span class="keywordflow">if</span> ( deviceSupportsFormat( info->id[0], isInput, &description, isDuplex ) )</div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>;</div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  }</div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span> </div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="comment">// Check that we have at least one supported format.</span></div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <span class="keywordflow">if</span> (info->nativeFormats == 0) {</div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSX PCM device (%s) data format not supported by RtAudio."</span>,</div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  info->name);</div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  }</div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span> </div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  info->probed = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span> }</div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span> </div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span> OSStatus callbackHandler(AudioDeviceID inDevice,</div>
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  <span class="keyword">const</span> AudioTimeStamp* inNow,</div>
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <span class="keyword">const</span> AudioBufferList* inInputData,</div>
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <span class="keyword">const</span> AudioTimeStamp* inInputTime,</div>
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  AudioBufferList* outOutputData,</div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="keyword">const</span> AudioTimeStamp* inOutputTime, </div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="keywordtype">void</span>* infoPointer)</div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span> {</div>
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *info = (<a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *) infoPointer;</div>
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span> </div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *<span class="keywordtype">object</span> = (<a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *) info-><a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a>;</div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  object->callbackEvent( info-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a>, inDevice, (<span class="keywordtype">void</span> *)inInputData, (<span class="keywordtype">void</span> *)outOutputData );</div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  }</div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  <span class="keywordflow">catch</span> (<a class="code" href="classRtError.html" title="Exception handling class for RtAudio.">RtError</a> &exception) {</div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  fprintf(stderr, <span class="stringliteral">"\nCallback handler error (%s)!\n\n"</span>, exception.<a class="code" href="classRtError.html#aeb19bdd498bb37c935b1dfbc41195114" title="Returns the "thrown" error message string.">getMessage</a>());</div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  <span class="keywordflow">return</span> kAudioHardwareUnspecifiedError;</div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  }</div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span> </div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <span class="keywordflow">return</span> kAudioHardwareNoError;</div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span> }</div>
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span> </div>
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span> <span class="comment">OSStatus deviceListener(AudioDeviceID inDevice,</span></div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span> <span class="comment"> UInt32 channel,</span></div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span> <span class="comment"> Boolean isInput,</span></div>
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span> <span class="comment"> AudioDevicePropertyID propertyID,</span></div>
<div class="line"><a name="l00781"></a><span class="lineno"> 781</span> <span class="comment"> void* infoPointer)</span></div>
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span> <span class="comment">{</span></div>
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span> <span class="comment"> CALLBACK_INFO *info = (CALLBACK_INFO *) infoPointer;</span></div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span> <span class="comment"></span></div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span> <span class="comment"> RtAudio *object = (RtAudio *) info->object;</span></div>
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span> <span class="comment"> try {</span></div>
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="comment"> object->settingChange( info->streamId );</span></div>
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span> <span class="comment"> }</span></div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span> <span class="comment"> catch (RtError &exception) {</span></div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span> <span class="comment"> fprintf(stderr, "\nDevice listener error (%s)!\n\n", exception.getMessage());</span></div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span> <span class="comment"> return kAudioHardwareUnspecifiedError;</span></div>
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span> <span class="comment"> }</span></div>
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span> <span class="comment"></span></div>
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span> <span class="comment"> return kAudioHardwareNoError;</span></div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span> <span class="comment">}</span></div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span> </div>
<div class="line"><a name="l00798"></a><span class="lineno"> 798</span> <span class="keywordtype">bool</span> RtAudio :: probeDeviceOpen(<span class="keywordtype">int</span> device, RTAUDIO_STREAM *stream,</div>
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  STREAM_MODE mode, <span class="keywordtype">int</span> channels, </div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  <span class="keywordtype">int</span> sampleRate, RTAUDIO_FORMAT format,</div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="keywordtype">int</span> *bufferSize, <span class="keywordtype">int</span> numberOfBuffers)</div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span> {</div>
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  <span class="comment">// Check to make sure we don't already have a stream accessing this device.</span></div>
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  RTAUDIO_STREAM *streamPtr;</div>
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  std::map<int, void *>::const_iterator i;</div>
<div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="keywordflow">for</span> ( i=streams.begin(); i!=streams.end(); ++i ) {</div>
<div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  streamPtr = (RTAUDIO_STREAM *) i->second;</div>
<div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  if ( streamPtr->device[0] == device || streamPtr->device[1] == device ) {</div>
<div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  sprintf(message, <span class="stringliteral">"RtAudio: no current OS X support for multiple streams accessing the same device!"</span>);</div>
<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  }</div>
<div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  }</div>
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span> </div>
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  <span class="comment">// Setup for stream mode.</span></div>
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  <span class="keywordtype">bool</span> isInput = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  AudioDeviceID <span class="keywordtype">id</span> = devices[device].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#ae0ba0362e0084e4cdd2f96ee91260309">id</a>[0];</div>
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  <span class="keywordflow">if</span> ( mode == INPUT ) isInput = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span> </div>
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  <span class="comment">// Search for a stream which contains the desired number of channels.</span></div>
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  OSStatus err = noErr;</div>
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  UInt32 dataSize;</div>
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> deviceChannels, nStreams;</div>
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  UInt32 iChannel = 0, iStream = 0;</div>
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  AudioBufferList *bufferList = nil;</div>
<div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  err = AudioDeviceGetPropertyInfo( <span class="keywordtype">id</span>, 0, isInput,</div>
<div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  kAudioDevicePropertyStreamConfiguration,</div>
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  &dataSize, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span> </div>
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  <span class="keywordflow">if</span> (err == noErr && dataSize > 0) {</div>
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  bufferList = (AudioBufferList *) malloc( dataSize );</div>
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  <span class="keywordflow">if</span> (bufferList == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  }</div>
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  err = AudioDeviceGetProperty( <span class="keywordtype">id</span>, 0, isInput,</div>
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  kAudioDevicePropertyStreamConfiguration,</div>
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  &dataSize, bufferList );</div>
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span> </div>
<div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  <span class="keywordflow">if</span> (err == noErr) {</div>
<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  stream->deInterleave[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  nStreams = bufferList->mNumberBuffers;</div>
<div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  <span class="keywordflow">for</span> ( iStream=0; iStream<nStreams; iStream++ ) {</div>
<div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="keywordflow">if</span> ( bufferList->mBuffers[iStream].mNumberChannels >= (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) channels ) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  iChannel += bufferList->mBuffers[iStream].mNumberChannels;</div>
<div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  }</div>
<div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="comment">// If we didn't find a single stream above, see if we can meet</span></div>
<div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  <span class="comment">// the channel specification in mono mode (i.e. using separate</span></div>
<div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  <span class="comment">// non-interleaved buffers). This can only work if there are N</span></div>
<div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  <span class="comment">// consecutive one-channel streams, where N is the number of</span></div>
<div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  <span class="comment">// desired channels.</span></div>
<div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  iChannel = 0;</div>
<div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  <span class="keywordflow">if</span> ( iStream >= nStreams && nStreams >= (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) channels ) {</div>
<div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  <span class="keywordtype">int</span> counter = 0;</div>
<div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  <span class="keywordflow">for</span> ( iStream=0; iStream<nStreams; iStream++ ) {</div>
<div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  <span class="keywordflow">if</span> ( bufferList->mBuffers[iStream].mNumberChannels == 1 )</div>
<div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  counter++;</div>
<div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  counter = 0;</div>
<div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  <span class="keywordflow">if</span> ( counter == channels ) {</div>
<div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  iStream -= channels - 1;</div>
<div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  iChannel -= channels - 1;</div>
<div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  stream->deInterleave[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  }</div>
<div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  iChannel += bufferList->mBuffers[iStream].mNumberChannels;</div>
<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  }</div>
<div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  }</div>
<div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  }</div>
<div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  }</div>
<div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <span class="keywordflow">if</span> (err != noErr || dataSize <= 0) {</div>
<div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  <span class="keywordflow">if</span> ( bufferList ) free( bufferList );</div>
<div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting channels for device (%s)."</span>, devices[device].name );</div>
<div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  }</div>
<div class="line"><a name="l00878"></a><span class="lineno"> 878</span> </div>
<div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  <span class="keywordflow">if</span> (iStream >= nStreams) {</div>
<div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  free (bufferList);</div>
<div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  sprintf( message, <span class="stringliteral">"RtAudio: unable to find OSX audio stream on device (%s) for requested channels (%d)."</span>,</div>
<div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  devices[device].name, channels );</div>
<div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  }</div>
<div class="line"><a name="l00886"></a><span class="lineno"> 886</span> </div>
<div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  <span class="comment">// This is ok even for mono mode ... it gets updated later.</span></div>
<div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  deviceChannels = bufferList->mBuffers[iStream].mNumberChannels;</div>
<div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  free (bufferList);</div>
<div class="line"><a name="l00890"></a><span class="lineno"> 890</span> </div>
<div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  <span class="comment">// Determine the buffer size.</span></div>
<div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  AudioValueRange bufferRange;</div>
<div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  dataSize = <span class="keyword">sizeof</span>(AudioValueRange);</div>
<div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  err = AudioDeviceGetProperty( <span class="keywordtype">id</span>, 0, isInput,</div>
<div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  kAudioDevicePropertyBufferSizeRange,</div>
<div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  &dataSize, &bufferRange);</div>
<div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting buffer size range for device (%s)."</span>,</div>
<div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  devices[device].name );</div>
<div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  }</div>
<div class="line"><a name="l00903"></a><span class="lineno"> 903</span> </div>
<div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  <span class="keywordtype">long</span> bufferBytes = *bufferSize * deviceChannels * formatBytes(<a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>);</div>
<div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  <span class="keywordflow">if</span> (bufferRange.mMinimum > bufferBytes) bufferBytes = (int) bufferRange.mMinimum;</div>
<div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  <span class="keywordflow">else</span> if (bufferRange.mMaximum < bufferBytes) bufferBytes = (int) bufferRange.mMaximum;</div>
<div class="line"><a name="l00907"></a><span class="lineno"> 907</span> </div>
<div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  <span class="comment">// Set the buffer size. For mono mode, I'm assuming we only need to</span></div>
<div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  <span class="comment">// make this setting for the first channel.</span></div>
<div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  UInt32 theSize = (UInt32) bufferBytes;</div>
<div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  dataSize = <span class="keyword">sizeof</span>( UInt32);</div>
<div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  err = AudioDeviceSetProperty(<span class="keywordtype">id</span>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0, isInput,</div>
<div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  kAudioDevicePropertyBufferSize,</div>
<div class="line"><a name="l00914"></a><span class="lineno"> 914</span>  dataSize, &theSize);</div>
<div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error setting the buffer size for device (%s)."</span>,</div>
<div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  devices[device].name );</div>
<div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  }</div>
<div class="line"><a name="l00921"></a><span class="lineno"> 921</span> </div>
<div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  <span class="comment">// If attempting to setup a duplex stream, the bufferSize parameter</span></div>
<div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  <span class="comment">// MUST be the same in both directions!</span></div>
<div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  *bufferSize = bufferBytes / ( deviceChannels * formatBytes(<a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>) );</div>
<div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && mode == INPUT && *bufferSize != stream->bufferSize ) {</div>
<div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error setting buffer size for duplex stream on device (%s)."</span>,</div>
<div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  devices[device].name );</div>
<div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00929"></a><span class="lineno"> 929</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  }</div>
<div class="line"><a name="l00931"></a><span class="lineno"> 931</span> </div>
<div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  stream->bufferSize = *bufferSize;</div>
<div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  stream->nBuffers = 1;</div>
<div class="line"><a name="l00934"></a><span class="lineno"> 934</span> </div>
<div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  <span class="comment">// Set the stream format description. Do for each channel in mono mode.</span></div>
<div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  AudioStreamBasicDescription description;</div>
<div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  dataSize = <span class="keyword">sizeof</span>( AudioStreamBasicDescription );</div>
<div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <span class="keywordflow">if</span> ( stream->deInterleave[mode] ) nStreams = channels;</div>
<div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  <span class="keywordflow">else</span> nStreams = 1;</div>
<div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<nStreams; i++, iChannel++ ) {</div>
<div class="line"><a name="l00941"></a><span class="lineno"> 941</span> </div>
<div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  err = AudioDeviceGetProperty( <span class="keywordtype">id</span>, iChannel, isInput,</div>
<div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  kAudioDevicePropertyStreamFormat,</div>
<div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  &dataSize, &description );</div>
<div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting stream format for device (%s)."</span>, devices[device].name );</div>
<div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  }</div>
<div class="line"><a name="l00950"></a><span class="lineno"> 950</span> </div>
<div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  <span class="comment">// Set the sample rate and data format id.</span></div>
<div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  description.mSampleRate = (double) sampleRate;</div>
<div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  description.mFormatID = kAudioFormatLinearPCM;</div>
<div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  err = AudioDeviceSetProperty( <span class="keywordtype">id</span>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, iChannel, isInput,</div>
<div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  kAudioDevicePropertyStreamFormat,</div>
<div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  dataSize, &description );</div>
<div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error setting sample rate or data format for device (%s)."</span>, devices[device].name );</div>
<div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  }</div>
<div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  }</div>
<div class="line"><a name="l00963"></a><span class="lineno"> 963</span> </div>
<div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  <span class="comment">// Check whether we need byte-swapping (assuming OS X host is big-endian).</span></div>
<div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  iChannel -= nStreams;</div>
<div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  err = AudioDeviceGetProperty( <span class="keywordtype">id</span>, iChannel, isInput,</div>
<div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  kAudioDevicePropertyStreamFormat,</div>
<div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  &dataSize, &description );</div>
<div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error getting stream format for device (%s)."</span>, devices[device].name );</div>
<div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l00973"></a><span class="lineno"> 973</span>  }</div>
<div class="line"><a name="l00974"></a><span class="lineno"> 974</span> </div>
<div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  stream->doByteSwap[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00976"></a><span class="lineno"> 976</span>  <span class="keywordflow">if</span> ( !description.mFormatFlags & kLinearPCMFormatFlagIsBigEndian )</div>
<div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00978"></a><span class="lineno"> 978</span> </div>
<div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  <span class="comment">// From the CoreAudio documentation, PCM data must be supplied as</span></div>
<div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  <span class="comment">// 32-bit floats.</span></div>
<div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  stream->userFormat = format;</div>
<div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>;</div>
<div class="line"><a name="l00983"></a><span class="lineno"> 983</span> </div>
<div class="line"><a name="l00984"></a><span class="lineno"> 984</span>  <span class="keywordflow">if</span> ( stream->deInterleave[mode] )</div>
<div class="line"><a name="l00985"></a><span class="lineno"> 985</span>  stream->nDeviceChannels[mode] = channels;</div>
<div class="line"><a name="l00986"></a><span class="lineno"> 986</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00987"></a><span class="lineno"> 987</span>  stream->nDeviceChannels[mode] = description.mChannelsPerFrame;</div>
<div class="line"><a name="l00988"></a><span class="lineno"> 988</span>  stream->nUserChannels[mode] = channels;</div>
<div class="line"><a name="l00989"></a><span class="lineno"> 989</span> </div>
<div class="line"><a name="l00990"></a><span class="lineno"> 990</span>  <span class="comment">// Set handle and flags for buffer conversion.</span></div>
<div class="line"><a name="l00991"></a><span class="lineno"> 991</span>  stream->handle[mode] = iStream;</div>
<div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  stream->doConvertBuffer[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  <span class="keywordflow">if</span> (stream->userFormat != stream->deviceFormat[mode])</div>
<div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  <span class="keywordflow">if</span> (stream->nUserChannels[mode] < stream->nDeviceChannels[mode])</div>
<div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00997"></a><span class="lineno"> 997</span>  <span class="keywordflow">if</span> (stream->nUserChannels[mode] > 1 && stream->deInterleave[mode])</div>
<div class="line"><a name="l00998"></a><span class="lineno"> 998</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00999"></a><span class="lineno"> 999</span> </div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  <span class="comment">// Allocate necessary internal buffers.</span></div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>  <span class="keywordflow">if</span> ( stream->nUserChannels[0] != stream->nUserChannels[1] ) {</div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span> </div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  <span class="keywordflow">if</span> (stream->nUserChannels[0] >= stream->nUserChannels[1])</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  buffer_bytes = stream->nUserChannels[0];</div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  buffer_bytes = stream->nUserChannels[1];</div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span> </div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  buffer_bytes *= *bufferSize * formatBytes(stream->userFormat);</div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  <span class="keywordflow">if</span> (stream->userBuffer) free(stream->userBuffer);</div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  stream->userBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>  <span class="keywordflow">if</span> (stream->userBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  }</div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span> </div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  <span class="keywordflow">if</span> ( stream->deInterleave[mode] ) {</div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span> </div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  <span class="keywordtype">bool</span> makeBuffer = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  <span class="keywordflow">if</span> ( mode == OUTPUT )</div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  buffer_bytes = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>  buffer_bytes = stream->nDeviceChannels[1] * formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && stream->deviceBuffer ) {</div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  <span class="keywordtype">long</span> bytes_out = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  <span class="keywordflow">if</span> ( buffer_bytes < bytes_out ) makeBuffer = <span class="keyword">false</span>;</div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  }</div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  }</div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span> </div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  <span class="keywordflow">if</span> ( makeBuffer ) {</div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>  buffer_bytes *= *bufferSize;</div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>  <span class="keywordflow">if</span> (stream->deviceBuffer) free(stream->deviceBuffer);</div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>  <span class="keywordflow">if</span> (stream->deviceBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span> </div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  <span class="comment">// If not de-interleaving, we point stream->deviceBuffer to the</span></div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  <span class="comment">// OS X supplied device buffer before doing any necessary data</span></div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  <span class="comment">// conversions. This presents a problem if we have a duplex</span></div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>  <span class="comment">// stream using one device which needs de-interleaving and</span></div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  <span class="comment">// another device which doesn't. So, save a pointer to our own</span></div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  <span class="comment">// device buffer in the CALLBACK_INFO structure.</span></div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  stream->callbackInfo.buffers = stream->deviceBuffer;</div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  }</div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  }</div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span> </div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  stream->sampleRate = sampleRate;</div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  stream->device[mode] = device;</div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  stream->callbackInfo.object = (<span class="keywordtype">void</span> *) <span class="keyword">this</span>;</div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  stream->callbackInfo.waitTime = (<span class="keywordtype">unsigned</span> long) (200000.0 * stream->bufferSize / stream->sampleRate);</div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  stream->callbackInfo.device[mode] = id;</div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && mode == INPUT && stream->device[0] == device )</div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  <span class="comment">// Only one callback procedure per device.</span></div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  stream->mode = DUPLEX;</div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  err = AudioDeviceAddIOProc( <span class="keywordtype">id</span>, callbackHandler, (<span class="keywordtype">void</span> *) &stream->callbackInfo );</div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>  sprintf( message, <span class="stringliteral">"RtAudio: OSX error setting callback for device (%s)."</span>, devices[device].name );</div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  }</div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && mode == INPUT )</div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>  stream->mode = DUPLEX;</div>
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  stream->mode = mode;</div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  }</div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span> </div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>  <span class="comment">// If we wanted to use property listeners, they would be setup here.</span></div>
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span> </div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>  <span class="keywordflow">return</span> SUCCESS;</div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span> </div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  memory_error:</div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>  <span class="keywordflow">if</span> (stream->userBuffer) {</div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  stream->userBuffer = 0;</div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  }</div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSX error allocating buffer memory (%s)."</span>, devices[device].name);</div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span> }</div>
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span> </div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#aebae35586a358dd4c6826801031479e1" title="A public method which cancels a callback process and function for a given stream.">RtAudio :: cancelStreamCallback</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span> {</div>
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span> </div>
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span> </div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>( streamId );</div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span> </div>
<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span> </div>
<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  stream->callbackInfo.usingCallback = <span class="keyword">false</span>;</div>
<div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  stream->callbackInfo.userData = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>  stream->callbackInfo.callback = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span> </div>
<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  }</div>
<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span> }</div>
<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span> </div>
<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a9b25382cabd65d739f2718f8647f1066" title="Public method which closes a stream and frees any associated buffers.">RtAudio :: closeStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l01104"></a><span class="lineno"> 1104</span> {</div>
<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>  <span class="comment">// We don't want an exception to be thrown here because this</span></div>
<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>  <span class="comment">// function is called by our class destructor. So, do our own</span></div>
<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>  <span class="comment">// streamId check.</span></div>
<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>  <span class="keywordflow">if</span> ( streams.find( streamId ) == streams.end() ) {</div>
<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>  sprintf(message, <span class="stringliteral">"RtAudio: invalid stream identifier!"</span>);</div>
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  }</div>
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span> </div>
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) streams[streamId];</div>
<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span> </div>
<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>  AudioDeviceID id;</div>
<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>  <span class="keywordtype">id</span> = devices[stream->device[0]].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#ae0ba0362e0084e4cdd2f96ee91260309">id</a>[0];</div>
<div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>  AudioDeviceStop( <span class="keywordtype">id</span>, callbackHandler );</div>
<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>  AudioDeviceRemoveIOProc( <span class="keywordtype">id</span>, callbackHandler );</div>
<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>  }</div>
<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span> </div>
<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || ( stream->mode == DUPLEX && stream->device[0] != stream->device[1]) ) {</div>
<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>  <span class="keywordtype">id</span> = devices[stream->device[1]].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#ae0ba0362e0084e4cdd2f96ee91260309">id</a>[0];</div>
<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>  AudioDeviceStop( <span class="keywordtype">id</span>, callbackHandler );</div>
<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>  AudioDeviceRemoveIOProc( <span class="keywordtype">id</span>, callbackHandler );</div>
<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>  }</div>
<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span> </div>
<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>  pthread_mutex_destroy(&stream->mutex);</div>
<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span> </div>
<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>  <span class="keywordflow">if</span> (stream->userBuffer)</div>
<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span> </div>
<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>  <span class="keywordflow">if</span> ( stream->deInterleave[0] || stream->deInterleave[1] )</div>
<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>  free(stream->callbackInfo.buffers);</div>
<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span> </div>
<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>  free(stream);</div>
<div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>  streams.erase(streamId);</div>
<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span> }</div>
<div class="line"><a name="l01142"></a><span class="lineno"> 1142</span> </div>
<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a304d9fc57cee6539bb1d98b82b10508f" title="Public method which starts a stream.">RtAudio :: startStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l01144"></a><span class="lineno"> 1144</span> {</div>
<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span> </div>
<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span> </div>
<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span> </div>
<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>  OSStatus err;</div>
<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span> </div>
<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>  err = AudioDeviceStart(devices[stream->device[0]].id[0], callbackHandler);</div>
<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSX error starting callback procedure on device (%s)."</span>,</div>
<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>  devices[stream->device[0]].name);</div>
<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>  }</div>
<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>  }</div>
<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span> </div>
<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || ( stream->mode == DUPLEX && stream->device[0] != stream->device[1]) ) {</div>
<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span> </div>
<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>  err = AudioDeviceStart(devices[stream->device[1]].id[0], callbackHandler);</div>
<div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSX error starting input callback procedure on device (%s)."</span>,</div>
<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>  devices[stream->device[0]].name);</div>
<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>  }</div>
<div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  }</div>
<div class="line"><a name="l01174"></a><span class="lineno"> 1174</span> </div>
<div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>  stream->callbackInfo.streamId = streamId;</div>
<div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>  stream->state = STREAM_RUNNING;</div>
<div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>  stream->callbackInfo.blockTick = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>  stream->callbackInfo.stopStream = <span class="keyword">false</span>;</div>
<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span> </div>
<div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>  unlock:</div>
<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span> }</div>
<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span> </div>
<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">RtAudio :: stopStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l01185"></a><span class="lineno"> 1185</span> {</div>
<div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span> </div>
<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01189"></a><span class="lineno"> 1189</span> </div>
<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span> </div>
<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>  OSStatus err;</div>
<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span> </div>
<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>  err = AudioDeviceStop(devices[stream->device[0]].id[0], callbackHandler);</div>
<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSX error stopping callback procedure on device (%s)."</span>,</div>
<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>  devices[stream->device[0]].name);</div>
<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>  }</div>
<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>  }</div>
<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span> </div>
<div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || ( stream->mode == DUPLEX && stream->device[0] != stream->device[1]) ) {</div>
<div class="line"><a name="l01206"></a><span class="lineno"> 1206</span> </div>
<div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>  err = AudioDeviceStop(devices[stream->device[1]].id[0], callbackHandler);</div>
<div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>  <span class="keywordflow">if</span> (err != noErr) {</div>
<div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSX error stopping input callback procedure on device (%s)."</span>,</div>
<div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>  devices[stream->device[0]].name);</div>
<div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>  }</div>
<div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>  }</div>
<div class="line"><a name="l01215"></a><span class="lineno"> 1215</span> </div>
<div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l01217"></a><span class="lineno"> 1217</span> </div>
<div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>  unlock:</div>
<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span> }</div>
<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span> </div>
<div class="line"><a name="l01222"></a><span class="lineno"> 1222</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a72335b2cf99913c017886ce5a818e6a3" title="Stop a stream, discarding any samples remaining in the input/output queue.">RtAudio :: abortStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l01223"></a><span class="lineno"> 1223</span> {</div>
<div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>  <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>( streamId );</div>
<div class="line"><a name="l01225"></a><span class="lineno"> 1225</span> }</div>
<div class="line"><a name="l01226"></a><span class="lineno"> 1226</span> </div>
<div class="line"><a name="l01227"></a><span class="lineno"> 1227</span> <span class="comment">// I don't know how this function can be implemented.</span></div>
<div class="line"><a name="l01228"></a><span class="lineno"> 1228</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#ab7e0a7652c1c90c0463ccbff3b794f2f" title="Queries a stream to determine whether a call to the tickStream() method will block.">RtAudio :: streamWillBlock</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l01229"></a><span class="lineno"> 1229</span> {</div>
<div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>  sprintf(message, <span class="stringliteral">"RtAudio: streamWillBlock() cannot be implemented for OS X."</span>);</div>
<div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l01233"></a><span class="lineno"> 1233</span> }</div>
<div class="line"><a name="l01234"></a><span class="lineno"> 1234</span> </div>
<div class="line"><a name="l01235"></a><span class="lineno"> 1235</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a2ba2bb7bf1995b0d754ec96b10bda324" title="Public method used to trigger processing of input/output data for a stream.">RtAudio :: tickStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l01236"></a><span class="lineno"> 1236</span> {</div>
<div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l01238"></a><span class="lineno"> 1238</span> </div>
<div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01241"></a><span class="lineno"> 1241</span> </div>
<div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>  sprintf(message, <span class="stringliteral">"RtAudio: tickStream() should not be used when a callback function is set!"</span>);</div>
<div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>  }</div>
<div class="line"><a name="l01247"></a><span class="lineno"> 1247</span> </div>
<div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>  <span class="comment">// Block waiting here until the user data is processed in callbackEvent().</span></div>
<div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>  <span class="keywordflow">while</span> ( stream->callbackInfo.blockTick )</div>
<div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>  usleep(stream->callbackInfo.waitTime);</div>
<div class="line"><a name="l01251"></a><span class="lineno"> 1251</span> </div>
<div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01253"></a><span class="lineno"> 1253</span> </div>
<div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>  stream->callbackInfo.blockTick = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01255"></a><span class="lineno"> 1255</span> </div>
<div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01257"></a><span class="lineno"> 1257</span> }</div>
<div class="line"><a name="l01258"></a><span class="lineno"> 1258</span> </div>
<div class="line"><a name="l01259"></a><span class="lineno"> 1259</span> <span class="keywordtype">void</span> RtAudio :: callbackEvent( <span class="keywordtype">int</span> streamId, DEVICE_ID deviceId, <span class="keywordtype">void</span> *inData, <span class="keywordtype">void</span> *outData )</div>
<div class="line"><a name="l01260"></a><span class="lineno"> 1260</span> {</div>
<div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l01262"></a><span class="lineno"> 1262</span> </div>
<div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>  <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *info;</div>
<div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>  AudioBufferList *inBufferList = (AudioBufferList *) inData;</div>
<div class="line"><a name="l01265"></a><span class="lineno"> 1265</span>  AudioBufferList *outBufferList = (AudioBufferList *) outData;</div>
<div class="line"><a name="l01266"></a><span class="lineno"> 1266</span> </div>
<div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01268"></a><span class="lineno"> 1268</span> </div>
<div class="line"><a name="l01269"></a><span class="lineno"> 1269</span>  info = (<a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *) &stream->callbackInfo;</div>
<div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>  if ( !info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> ) {</div>
<div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>  <span class="comment">// Block waiting here until we get new user data in tickStream().</span></div>
<div class="line"><a name="l01272"></a><span class="lineno"> 1272</span>  <span class="keywordflow">while</span> ( !info-><a class="code" href="structCALLBACK__INFO.html#a678e280d4302d086f57d84b0f2bbcc60">blockTick</a> )</div>
<div class="line"><a name="l01273"></a><span class="lineno"> 1273</span>  usleep(info-><a class="code" href="structCALLBACK__INFO.html#a0ed286858d36026b6fc12788fcdb8c34">waitTime</a>);</div>
<div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>  }</div>
<div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( info-><a class="code" href="structCALLBACK__INFO.html#aa1dacf399d0864ec8bedaf74df6fa8e2">stopStream</a> ) {</div>
<div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>  <span class="comment">// Check if the stream should be stopped (via the previous user</span></div>
<div class="line"><a name="l01277"></a><span class="lineno"> 1277</span>  <span class="comment">// callback return value). We stop the stream here, rather than</span></div>
<div class="line"><a name="l01278"></a><span class="lineno"> 1278</span>  <span class="comment">// after the function call, so that output data can first be</span></div>
<div class="line"><a name="l01279"></a><span class="lineno"> 1279</span>  <span class="comment">// processed.</span></div>
<div class="line"><a name="l01280"></a><span class="lineno"> 1280</span>  this-><a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>(info-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a>);</div>
<div class="line"><a name="l01281"></a><span class="lineno"> 1281</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>  }</div>
<div class="line"><a name="l01283"></a><span class="lineno"> 1283</span> </div>
<div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01285"></a><span class="lineno"> 1285</span> </div>
<div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>  <span class="comment">// Invoke user callback first, to get fresh output data. Don't</span></div>
<div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>  <span class="comment">// invoke the user callback if duplex mode, the input/output devices</span></div>
<div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>  <span class="comment">// are different, and this function is called for the input device.</span></div>
<div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>  <span class="keywordflow">if</span> ( info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> && (stream->mode != DUPLEX || deviceId == info-><a class="code" href="structCALLBACK__INFO.html#af47fa79d6324e81a7a6c10efc7c00b5e">device</a>[0] ) ) {</div>
<div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>  <a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a> callback = (<a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a>) info-><a class="code" href="structCALLBACK__INFO.html#a654bf7533d89783acad1e2da499e2baf">callback</a>;</div>
<div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>  info-><a class="code" href="structCALLBACK__INFO.html#aa1dacf399d0864ec8bedaf74df6fa8e2">stopStream</a> = callback(stream->userBuffer, stream->bufferSize, info-><a class="code" href="structCALLBACK__INFO.html#a5341b437d7ab1abf412ca00b063bca31">userData</a>);</div>
<div class="line"><a name="l01292"></a><span class="lineno"> 1292</span>  }</div>
<div class="line"><a name="l01293"></a><span class="lineno"> 1293</span> </div>
<div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT || ( stream->mode == DUPLEX && deviceId == info-><a class="code" href="structCALLBACK__INFO.html#af47fa79d6324e81a7a6c10efc7c00b5e">device</a>[0] ) ) {</div>
<div class="line"><a name="l01295"></a><span class="lineno"> 1295</span> </div>
<div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[0]) {</div>
<div class="line"><a name="l01297"></a><span class="lineno"> 1297</span> </div>
<div class="line"><a name="l01298"></a><span class="lineno"> 1298</span>  <span class="keywordflow">if</span> ( !stream->deInterleave[0] )</div>
<div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) outBufferList->mBuffers[stream->handle[0]].mData;</div>
<div class="line"><a name="l01300"></a><span class="lineno"> 1300</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01301"></a><span class="lineno"> 1301</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) stream->callbackInfo.buffers;</div>
<div class="line"><a name="l01302"></a><span class="lineno"> 1302</span> </div>
<div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>  convertStreamBuffer(stream, OUTPUT);</div>
<div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>  <span class="keywordflow">if</span> ( stream->doByteSwap[0] )</div>
<div class="line"><a name="l01305"></a><span class="lineno"> 1305</span>  byteSwapBuffer(stream->deviceBuffer,</div>
<div class="line"><a name="l01306"></a><span class="lineno"> 1306</span>  stream->bufferSize * stream->nDeviceChannels[0],</div>
<div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>  stream->deviceFormat[0]);</div>
<div class="line"><a name="l01308"></a><span class="lineno"> 1308</span> </div>
<div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>  <span class="keywordflow">if</span> ( stream->deInterleave[0] ) {</div>
<div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>  <span class="keywordtype">int</span> bufferBytes = outBufferList->mBuffers[stream->handle[0]].mDataByteSize;</div>
<div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<stream->nDeviceChannels[0]; i++ ) {</div>
<div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>  memcpy(outBufferList->mBuffers[stream->handle[0]+i].mData,</div>
<div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>  &stream->deviceBuffer[i*bufferBytes], bufferBytes );</div>
<div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>  }</div>
<div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>  }</div>
<div class="line"><a name="l01316"></a><span class="lineno"> 1316</span> </div>
<div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>  }</div>
<div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>  <span class="keywordflow">if</span> (stream->doByteSwap[0])</div>
<div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>  byteSwapBuffer(stream->userBuffer,</div>
<div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>  stream->bufferSize * stream->nUserChannels[0],</div>
<div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>  stream->userFormat);</div>
<div class="line"><a name="l01323"></a><span class="lineno"> 1323</span> </div>
<div class="line"><a name="l01324"></a><span class="lineno"> 1324</span>  memcpy(outBufferList->mBuffers[stream->handle[0]].mData,</div>
<div class="line"><a name="l01325"></a><span class="lineno"> 1325</span>  stream->userBuffer,</div>
<div class="line"><a name="l01326"></a><span class="lineno"> 1326</span>  outBufferList->mBuffers[stream->handle[0]].mDataByteSize );</div>
<div class="line"><a name="l01327"></a><span class="lineno"> 1327</span>  }</div>
<div class="line"><a name="l01328"></a><span class="lineno"> 1328</span>  }</div>
<div class="line"><a name="l01329"></a><span class="lineno"> 1329</span> </div>
<div class="line"><a name="l01330"></a><span class="lineno"> 1330</span>  <span class="keywordflow">if</span> ( stream->mode == INPUT || ( stream->mode == DUPLEX && deviceId == info-><a class="code" href="structCALLBACK__INFO.html#af47fa79d6324e81a7a6c10efc7c00b5e">device</a>[1] ) ) {</div>
<div class="line"><a name="l01331"></a><span class="lineno"> 1331</span> </div>
<div class="line"><a name="l01332"></a><span class="lineno"> 1332</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1]) {</div>
<div class="line"><a name="l01333"></a><span class="lineno"> 1333</span> </div>
<div class="line"><a name="l01334"></a><span class="lineno"> 1334</span>  <span class="keywordflow">if</span> ( stream->deInterleave[1] ) {</div>
<div class="line"><a name="l01335"></a><span class="lineno"> 1335</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) stream->callbackInfo.buffers;</div>
<div class="line"><a name="l01336"></a><span class="lineno"> 1336</span>  <span class="keywordtype">int</span> bufferBytes = inBufferList->mBuffers[stream->handle[1]].mDataByteSize;</div>
<div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>  for ( <span class="keywordtype">int</span> i=0; i<stream->nDeviceChannels[1]; i++ ) {</div>
<div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>  memcpy(&stream->deviceBuffer[i*bufferBytes],</div>
<div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>  inBufferList->mBuffers[stream->handle[1]+i].mData, bufferBytes );</div>
<div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>  }</div>
<div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>  }</div>
<div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01343"></a><span class="lineno"> 1343</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) inBufferList->mBuffers[stream->handle[1]].mData;</div>
<div class="line"><a name="l01344"></a><span class="lineno"> 1344</span> </div>
<div class="line"><a name="l01345"></a><span class="lineno"> 1345</span>  if ( stream->doByteSwap[1] )</div>
<div class="line"><a name="l01346"></a><span class="lineno"> 1346</span>  byteSwapBuffer(stream->deviceBuffer,</div>
<div class="line"><a name="l01347"></a><span class="lineno"> 1347</span>  stream->bufferSize * stream->nDeviceChannels[1],</div>
<div class="line"><a name="l01348"></a><span class="lineno"> 1348</span>  stream->deviceFormat[1]);</div>
<div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>  convertStreamBuffer(stream, INPUT);</div>
<div class="line"><a name="l01350"></a><span class="lineno"> 1350</span> </div>
<div class="line"><a name="l01351"></a><span class="lineno"> 1351</span>  }</div>
<div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>  memcpy(stream->userBuffer,</div>
<div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>  inBufferList->mBuffers[stream->handle[1]].mData,</div>
<div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>  inBufferList->mBuffers[stream->handle[1]].mDataByteSize );</div>
<div class="line"><a name="l01356"></a><span class="lineno"> 1356</span> </div>
<div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>  <span class="keywordflow">if</span> (stream->doByteSwap[1])</div>
<div class="line"><a name="l01358"></a><span class="lineno"> 1358</span>  byteSwapBuffer(stream->userBuffer,</div>
<div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>  stream->bufferSize * stream->nUserChannels[1],</div>
<div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>  stream->userFormat);</div>
<div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>  }</div>
<div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>  }</div>
<div class="line"><a name="l01363"></a><span class="lineno"> 1363</span> </div>
<div class="line"><a name="l01364"></a><span class="lineno"> 1364</span>  <span class="keywordflow">if</span> ( !info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> && (stream->mode != DUPLEX || deviceId == info-><a class="code" href="structCALLBACK__INFO.html#af47fa79d6324e81a7a6c10efc7c00b5e">device</a>[1] ) )</div>
<div class="line"><a name="l01365"></a><span class="lineno"> 1365</span>  info-><a class="code" href="structCALLBACK__INFO.html#a678e280d4302d086f57d84b0f2bbcc60">blockTick</a> = <span class="keyword">false</span>;</div>
<div class="line"><a name="l01366"></a><span class="lineno"> 1366</span> </div>
<div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l01368"></a><span class="lineno"> 1368</span> </div>
<div class="line"><a name="l01369"></a><span class="lineno"> 1369</span> }</div>
<div class="line"><a name="l01370"></a><span class="lineno"> 1370</span> </div>
<div class="line"><a name="l01371"></a><span class="lineno"> 1371</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#ade4c600afb2fe5c8b568db7845c7c494" title="A public method which sets a user-defined callback function for a given stream.">RtAudio :: setStreamCallback</a>(<span class="keywordtype">int</span> streamId, RTAUDIO_CALLBACK callback, <span class="keywordtype">void</span> *userData)</div>
<div class="line"><a name="l01372"></a><span class="lineno"> 1372</span> {</div>
<div class="line"><a name="l01373"></a><span class="lineno"> 1373</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l01374"></a><span class="lineno"> 1374</span> </div>
<div class="line"><a name="l01375"></a><span class="lineno"> 1375</span>  stream->callbackInfo.callback = (<span class="keywordtype">void</span> *) callback;</div>
<div class="line"><a name="l01376"></a><span class="lineno"> 1376</span>  stream->callbackInfo.userData = userData;</div>
<div class="line"><a name="l01377"></a><span class="lineno"> 1377</span>  stream->callbackInfo.usingCallback = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01378"></a><span class="lineno"> 1378</span> }</div>
<div class="line"><a name="l01379"></a><span class="lineno"> 1379</span> </div>
<div class="line"><a name="l01380"></a><span class="lineno"> 1380</span> <span class="comment">//******************** End of __MACOSX_CORE__ *********************//</span></div>
<div class="line"><a name="l01381"></a><span class="lineno"> 1381</span> </div>
<div class="line"><a name="l01382"></a><span class="lineno"> 1382</span> <span class="preprocessor">#elif defined(__LINUX_ALSA__)</span></div>
<div class="line"><a name="l01383"></a><span class="lineno"> 1383</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l01384"></a><span class="lineno"> 1384</span> <span class="preprocessor">#define MAX_DEVICES 16</span></div>
<div class="line"><a name="l01385"></a><span class="lineno"> 1385</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l01386"></a><span class="lineno"> 1386</span> <span class="keywordtype">void</span> RtAudio :: initialize(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l01387"></a><span class="lineno"> 1387</span> {</div>
<div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>  <span class="keywordtype">int</span> card, result, device;</div>
<div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>  <span class="keywordtype">char</span> name[32];</div>
<div class="line"><a name="l01390"></a><span class="lineno"> 1390</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *cardId;</div>
<div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>  <span class="keywordtype">char</span> deviceNames[MAX_DEVICES][32];</div>
<div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>  snd_ctl_t *handle;</div>
<div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>  snd_ctl_card_info_t *info;</div>
<div class="line"><a name="l01394"></a><span class="lineno"> 1394</span>  snd_ctl_card_info_alloca(&info);</div>
<div class="line"><a name="l01395"></a><span class="lineno"> 1395</span> </div>
<div class="line"><a name="l01396"></a><span class="lineno"> 1396</span>  <span class="comment">// Count cards and devices</span></div>
<div class="line"><a name="l01397"></a><span class="lineno"> 1397</span>  nDevices = 0;</div>
<div class="line"><a name="l01398"></a><span class="lineno"> 1398</span>  card = -1;</div>
<div class="line"><a name="l01399"></a><span class="lineno"> 1399</span>  snd_card_next(&card);</div>
<div class="line"><a name="l01400"></a><span class="lineno"> 1400</span>  <span class="keywordflow">while</span> ( card >= 0 ) {</div>
<div class="line"><a name="l01401"></a><span class="lineno"> 1401</span>  sprintf(name, <span class="stringliteral">"hw:%d"</span>, card);</div>
<div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>  result = snd_ctl_open(&handle, name, 0);</div>
<div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>  <span class="keywordflow">if</span> (result < 0) {</div>
<div class="line"><a name="l01404"></a><span class="lineno"> 1404</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA control open (%i): %s."</span>, card, snd_strerror(result));</div>
<div class="line"><a name="l01405"></a><span class="lineno"> 1405</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>  <span class="keywordflow">goto</span> next_card;</div>
<div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>  }</div>
<div class="line"><a name="l01408"></a><span class="lineno"> 1408</span>  result = snd_ctl_card_info(handle, info);</div>
<div class="line"><a name="l01409"></a><span class="lineno"> 1409</span>  <span class="keywordflow">if</span> (result < 0) {</div>
<div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA control hardware info (%i): %s."</span>, card, snd_strerror(result));</div>
<div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>  <span class="keywordflow">goto</span> next_card;</div>
<div class="line"><a name="l01413"></a><span class="lineno"> 1413</span>  }</div>
<div class="line"><a name="l01414"></a><span class="lineno"> 1414</span>  cardId = snd_ctl_card_info_get_id(info);</div>
<div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>  device = -1;</div>
<div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>  <span class="keywordflow">while</span> (1) {</div>
<div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>  result = snd_ctl_pcm_next_device(handle, &device);</div>
<div class="line"><a name="l01418"></a><span class="lineno"> 1418</span>  <span class="keywordflow">if</span> (result < 0) {</div>
<div class="line"><a name="l01419"></a><span class="lineno"> 1419</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA control next device (%i): %s."</span>, card, snd_strerror(result));</div>
<div class="line"><a name="l01420"></a><span class="lineno"> 1420</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01421"></a><span class="lineno"> 1421</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01422"></a><span class="lineno"> 1422</span>  }</div>
<div class="line"><a name="l01423"></a><span class="lineno"> 1423</span>  <span class="keywordflow">if</span> (device < 0)</div>
<div class="line"><a name="l01424"></a><span class="lineno"> 1424</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01425"></a><span class="lineno"> 1425</span>  <span class="keywordflow">if</span> ( strlen(cardId) )</div>
<div class="line"><a name="l01426"></a><span class="lineno"> 1426</span>  sprintf( deviceNames[nDevices++], <span class="stringliteral">"hw:%s,%d"</span>, cardId, device );</div>
<div class="line"><a name="l01427"></a><span class="lineno"> 1427</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01428"></a><span class="lineno"> 1428</span>  sprintf( deviceNames[nDevices++], <span class="stringliteral">"hw:%d,%d"</span>, card, device );</div>
<div class="line"><a name="l01429"></a><span class="lineno"> 1429</span>  <span class="keywordflow">if</span> ( nDevices > MAX_DEVICES ) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>  }</div>
<div class="line"><a name="l01431"></a><span class="lineno"> 1431</span>  <span class="keywordflow">if</span> ( nDevices > MAX_DEVICES ) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01432"></a><span class="lineno"> 1432</span>  next_card:</div>
<div class="line"><a name="l01433"></a><span class="lineno"> 1433</span>  snd_ctl_close(handle);</div>
<div class="line"><a name="l01434"></a><span class="lineno"> 1434</span>  snd_card_next(&card);</div>
<div class="line"><a name="l01435"></a><span class="lineno"> 1435</span>  }</div>
<div class="line"><a name="l01436"></a><span class="lineno"> 1436</span> </div>
<div class="line"><a name="l01437"></a><span class="lineno"> 1437</span>  <span class="keywordflow">if</span> (nDevices == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01438"></a><span class="lineno"> 1438</span> </div>
<div class="line"><a name="l01439"></a><span class="lineno"> 1439</span>  <span class="comment">// Allocate the RTAUDIO_DEVICE structures.</span></div>
<div class="line"><a name="l01440"></a><span class="lineno"> 1440</span>  devices = (RTAUDIO_DEVICE *) calloc(nDevices, <span class="keyword">sizeof</span>(RTAUDIO_DEVICE));</div>
<div class="line"><a name="l01441"></a><span class="lineno"> 1441</span>  <span class="keywordflow">if</span> (devices == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01442"></a><span class="lineno"> 1442</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l01443"></a><span class="lineno"> 1443</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ab4f813e5a36905c89d4081a59497432e">RtError::MEMORY_ERROR</a>);</div>
<div class="line"><a name="l01444"></a><span class="lineno"> 1444</span>  }</div>
<div class="line"><a name="l01445"></a><span class="lineno"> 1445</span> </div>
<div class="line"><a name="l01446"></a><span class="lineno"> 1446</span>  <span class="comment">// Write device ascii identifiers to device structures and then</span></div>
<div class="line"><a name="l01447"></a><span class="lineno"> 1447</span>  <span class="comment">// probe the device capabilities.</span></div>
<div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<nDevices; i++) {</div>
<div class="line"><a name="l01449"></a><span class="lineno"> 1449</span>  strncpy(devices[i].name, deviceNames[i], 32);</div>
<div class="line"><a name="l01450"></a><span class="lineno"> 1450</span>  <span class="comment">//probeDeviceInfo(&devices[i]);</span></div>
<div class="line"><a name="l01451"></a><span class="lineno"> 1451</span>  }</div>
<div class="line"><a name="l01452"></a><span class="lineno"> 1452</span> }</div>
<div class="line"><a name="l01453"></a><span class="lineno"> 1453</span> </div>
<div class="line"><a name="l01454"></a><span class="lineno"> 1454</span> <span class="keywordtype">int</span> RtAudio :: getDefaultInputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l01455"></a><span class="lineno"> 1455</span> {</div>
<div class="line"><a name="l01456"></a><span class="lineno"> 1456</span>  <span class="comment">// No ALSA API functions for default devices.</span></div>
<div class="line"><a name="l01457"></a><span class="lineno"> 1457</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l01458"></a><span class="lineno"> 1458</span> }</div>
<div class="line"><a name="l01459"></a><span class="lineno"> 1459</span> </div>
<div class="line"><a name="l01460"></a><span class="lineno"> 1460</span> <span class="keywordtype">int</span> RtAudio :: getDefaultOutputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l01461"></a><span class="lineno"> 1461</span> {</div>
<div class="line"><a name="l01462"></a><span class="lineno"> 1462</span>  <span class="comment">// No ALSA API functions for default devices.</span></div>
<div class="line"><a name="l01463"></a><span class="lineno"> 1463</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l01464"></a><span class="lineno"> 1464</span> }</div>
<div class="line"><a name="l01465"></a><span class="lineno"> 1465</span> </div>
<div class="line"><a name="l01466"></a><span class="lineno"> 1466</span> <span class="keywordtype">void</span> RtAudio :: probeDeviceInfo(RTAUDIO_DEVICE *info)</div>
<div class="line"><a name="l01467"></a><span class="lineno"> 1467</span> {</div>
<div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>  <span class="keywordtype">int</span> open_mode = SND_PCM_ASYNC;</div>
<div class="line"><a name="l01470"></a><span class="lineno"> 1470</span>  snd_pcm_t *handle;</div>
<div class="line"><a name="l01471"></a><span class="lineno"> 1471</span>  snd_ctl_t *chandle;</div>
<div class="line"><a name="l01472"></a><span class="lineno"> 1472</span>  snd_pcm_stream_t stream;</div>
<div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>  snd_pcm_info_t *pcminfo;</div>
<div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>  snd_pcm_info_alloca(&pcminfo);</div>
<div class="line"><a name="l01475"></a><span class="lineno"> 1475</span>  snd_pcm_hw_params_t *params;</div>
<div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>  snd_pcm_hw_params_alloca(&params);</div>
<div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>  <span class="keywordtype">char</span> name[32];</div>
<div class="line"><a name="l01478"></a><span class="lineno"> 1478</span>  <span class="keywordtype">char</span> *card;</div>
<div class="line"><a name="l01479"></a><span class="lineno"> 1479</span> </div>
<div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>  <span class="comment">// Open the control interface for this card.</span></div>
<div class="line"><a name="l01481"></a><span class="lineno"> 1481</span>  strncpy( name, info->name, 32 );</div>
<div class="line"><a name="l01482"></a><span class="lineno"> 1482</span>  card = strtok(name, <span class="stringliteral">","</span>);</div>
<div class="line"><a name="l01483"></a><span class="lineno"> 1483</span>  err = snd_ctl_open(&chandle, card, 0);</div>
<div class="line"><a name="l01484"></a><span class="lineno"> 1484</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01485"></a><span class="lineno"> 1485</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA control open (%s): %s."</span>, card, snd_strerror(err));</div>
<div class="line"><a name="l01486"></a><span class="lineno"> 1486</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01487"></a><span class="lineno"> 1487</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01488"></a><span class="lineno"> 1488</span>  }</div>
<div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dev = (<span class="keywordtype">unsigned</span> int) atoi( strtok(<a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <span class="stringliteral">","</span>) );</div>
<div class="line"><a name="l01490"></a><span class="lineno"> 1490</span> </div>
<div class="line"><a name="l01491"></a><span class="lineno"> 1491</span>  <span class="comment">// First try for playback</span></div>
<div class="line"><a name="l01492"></a><span class="lineno"> 1492</span>  stream = SND_PCM_STREAM_PLAYBACK;</div>
<div class="line"><a name="l01493"></a><span class="lineno"> 1493</span>  snd_pcm_info_set_device(pcminfo, dev);</div>
<div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>  snd_pcm_info_set_subdevice(pcminfo, 0);</div>
<div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>  snd_pcm_info_set_stream(pcminfo, stream);</div>
<div class="line"><a name="l01496"></a><span class="lineno"> 1496</span> </div>
<div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>  <span class="keywordflow">if</span> ((err = snd_ctl_pcm_info(chandle, pcminfo)) < 0) {</div>
<div class="line"><a name="l01498"></a><span class="lineno"> 1498</span>  <span class="keywordflow">if</span> (err == -ENOENT) {</div>
<div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA pcm device (%s) doesn't handle output!"</span>, info->name);</div>
<div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>  }</div>
<div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA snd_ctl_pcm_info error for device (%s) output: %s"</span>,</div>
<div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>  }</div>
<div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>  <span class="keywordflow">goto</span> capture_probe;</div>
<div class="line"><a name="l01508"></a><span class="lineno"> 1508</span>  }</div>
<div class="line"><a name="l01509"></a><span class="lineno"> 1509</span> </div>
<div class="line"><a name="l01510"></a><span class="lineno"> 1510</span>  err = snd_pcm_open(&handle, info->name, stream, open_mode | SND_PCM_NONBLOCK );</div>
<div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>  <span class="keywordflow">if</span> ( err == EBUSY )</div>
<div class="line"><a name="l01513"></a><span class="lineno"> 1513</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA pcm playback device (%s) is busy: %s."</span>,</div>
<div class="line"><a name="l01514"></a><span class="lineno"> 1514</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01515"></a><span class="lineno"> 1515</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA pcm playback open (%s) error: %s."</span>,</div>
<div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01519"></a><span class="lineno"> 1519</span>  <span class="keywordflow">goto</span> capture_probe;</div>
<div class="line"><a name="l01520"></a><span class="lineno"> 1520</span>  }</div>
<div class="line"><a name="l01521"></a><span class="lineno"> 1521</span> </div>
<div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>  <span class="comment">// We have an open device ... allocate the parameter structure.</span></div>
<div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>  err = snd_pcm_hw_params_any(handle, params);</div>
<div class="line"><a name="l01524"></a><span class="lineno"> 1524</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01526"></a><span class="lineno"> 1526</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA hardware probe error (%s): %s."</span>,</div>
<div class="line"><a name="l01527"></a><span class="lineno"> 1527</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>  <span class="keywordflow">goto</span> capture_probe;</div>
<div class="line"><a name="l01530"></a><span class="lineno"> 1530</span>  }</div>
<div class="line"><a name="l01531"></a><span class="lineno"> 1531</span> </div>
<div class="line"><a name="l01532"></a><span class="lineno"> 1532</span>  <span class="comment">// Get output channel information.</span></div>
<div class="line"><a name="l01533"></a><span class="lineno"> 1533</span>  info->minOutputChannels = snd_pcm_hw_params_get_channels_min(params);</div>
<div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>  info->maxOutputChannels = snd_pcm_hw_params_get_channels_max(params);</div>
<div class="line"><a name="l01535"></a><span class="lineno"> 1535</span> </div>
<div class="line"><a name="l01536"></a><span class="lineno"> 1536</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01537"></a><span class="lineno"> 1537</span> </div>
<div class="line"><a name="l01538"></a><span class="lineno"> 1538</span>  capture_probe:</div>
<div class="line"><a name="l01539"></a><span class="lineno"> 1539</span>  <span class="comment">// Now try for capture</span></div>
<div class="line"><a name="l01540"></a><span class="lineno"> 1540</span>  stream = SND_PCM_STREAM_CAPTURE;</div>
<div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>  snd_pcm_info_set_stream(pcminfo, stream);</div>
<div class="line"><a name="l01542"></a><span class="lineno"> 1542</span> </div>
<div class="line"><a name="l01543"></a><span class="lineno"> 1543</span>  err = snd_ctl_pcm_info(chandle, pcminfo);</div>
<div class="line"><a name="l01544"></a><span class="lineno"> 1544</span>  snd_ctl_close(chandle);</div>
<div class="line"><a name="l01545"></a><span class="lineno"> 1545</span>  <span class="keywordflow">if</span> ( err < 0 ) {</div>
<div class="line"><a name="l01546"></a><span class="lineno"> 1546</span>  <span class="keywordflow">if</span> (err == -ENOENT) {</div>
<div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA pcm device (%s) doesn't handle input!"</span>, info->name);</div>
<div class="line"><a name="l01548"></a><span class="lineno"> 1548</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01549"></a><span class="lineno"> 1549</span>  }</div>
<div class="line"><a name="l01550"></a><span class="lineno"> 1550</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01551"></a><span class="lineno"> 1551</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA snd_ctl_pcm_info error for device (%s) input: %s"</span>,</div>
<div class="line"><a name="l01552"></a><span class="lineno"> 1552</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01553"></a><span class="lineno"> 1553</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01554"></a><span class="lineno"> 1554</span>  }</div>
<div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>  <span class="keywordflow">if</span> (info->maxOutputChannels == 0)</div>
<div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>  <span class="comment">// didn't open for playback either ... device invalid</span></div>
<div class="line"><a name="l01557"></a><span class="lineno"> 1557</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01558"></a><span class="lineno"> 1558</span>  <span class="keywordflow">goto</span> probe_parameters;</div>
<div class="line"><a name="l01559"></a><span class="lineno"> 1559</span>  }</div>
<div class="line"><a name="l01560"></a><span class="lineno"> 1560</span> </div>
<div class="line"><a name="l01561"></a><span class="lineno"> 1561</span>  err = snd_pcm_open(&handle, info->name, stream, open_mode | SND_PCM_NONBLOCK);</div>
<div class="line"><a name="l01562"></a><span class="lineno"> 1562</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01563"></a><span class="lineno"> 1563</span>  <span class="keywordflow">if</span> ( err == EBUSY )</div>
<div class="line"><a name="l01564"></a><span class="lineno"> 1564</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA pcm capture device (%s) is busy: %s."</span>,</div>
<div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01566"></a><span class="lineno"> 1566</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01567"></a><span class="lineno"> 1567</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA pcm capture open (%s) error: %s."</span>,</div>
<div class="line"><a name="l01568"></a><span class="lineno"> 1568</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01569"></a><span class="lineno"> 1569</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01570"></a><span class="lineno"> 1570</span>  <span class="keywordflow">if</span> (info->maxOutputChannels == 0)</div>
<div class="line"><a name="l01571"></a><span class="lineno"> 1571</span>  <span class="comment">// didn't open for playback either ... device invalid</span></div>
<div class="line"><a name="l01572"></a><span class="lineno"> 1572</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01573"></a><span class="lineno"> 1573</span>  <span class="keywordflow">goto</span> probe_parameters;</div>
<div class="line"><a name="l01574"></a><span class="lineno"> 1574</span>  }</div>
<div class="line"><a name="l01575"></a><span class="lineno"> 1575</span> </div>
<div class="line"><a name="l01576"></a><span class="lineno"> 1576</span>  <span class="comment">// We have an open capture device ... allocate the parameter structure.</span></div>
<div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>  err = snd_pcm_hw_params_any(handle, params);</div>
<div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01579"></a><span class="lineno"> 1579</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA hardware probe error (%s): %s."</span>,</div>
<div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01582"></a><span class="lineno"> 1582</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01583"></a><span class="lineno"> 1583</span>  <span class="keywordflow">if</span> (info->maxOutputChannels > 0)</div>
<div class="line"><a name="l01584"></a><span class="lineno"> 1584</span>  <span class="keywordflow">goto</span> probe_parameters;</div>
<div class="line"><a name="l01585"></a><span class="lineno"> 1585</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01586"></a><span class="lineno"> 1586</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01587"></a><span class="lineno"> 1587</span>  }</div>
<div class="line"><a name="l01588"></a><span class="lineno"> 1588</span> </div>
<div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>  <span class="comment">// Get input channel information.</span></div>
<div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>  info->minInputChannels = snd_pcm_hw_params_get_channels_min(params);</div>
<div class="line"><a name="l01591"></a><span class="lineno"> 1591</span>  info->maxInputChannels = snd_pcm_hw_params_get_channels_max(params);</div>
<div class="line"><a name="l01592"></a><span class="lineno"> 1592</span> </div>
<div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01594"></a><span class="lineno"> 1594</span> </div>
<div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>  <span class="comment">// If device opens for both playback and capture, we determine the channels.</span></div>
<div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>  <span class="keywordflow">if</span> (info->maxOutputChannels == 0 || info->maxInputChannels == 0)</div>
<div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>  <span class="keywordflow">goto</span> probe_parameters;</div>
<div class="line"><a name="l01598"></a><span class="lineno"> 1598</span> </div>
<div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>  info->hasDuplexSupport = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>  info->maxDuplexChannels = (info->maxOutputChannels > info->maxInputChannels) ?</div>
<div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>  info->maxInputChannels : info->maxOutputChannels;</div>
<div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>  info->minDuplexChannels = (info->minOutputChannels > info->minInputChannels) ?</div>
<div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>  info->minInputChannels : info->minOutputChannels;</div>
<div class="line"><a name="l01604"></a><span class="lineno"> 1604</span> </div>
<div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>  probe_parameters:</div>
<div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>  <span class="comment">// At this point, we just need to figure out the supported data</span></div>
<div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>  <span class="comment">// formats and sample rates. We'll proceed by opening the device in</span></div>
<div class="line"><a name="l01608"></a><span class="lineno"> 1608</span>  <span class="comment">// the direction with the maximum number of channels, or playback if</span></div>
<div class="line"><a name="l01609"></a><span class="lineno"> 1609</span>  <span class="comment">// they are equal. This might limit our sample rate options, but so</span></div>
<div class="line"><a name="l01610"></a><span class="lineno"> 1610</span>  <span class="comment">// be it.</span></div>
<div class="line"><a name="l01611"></a><span class="lineno"> 1611</span> </div>
<div class="line"><a name="l01612"></a><span class="lineno"> 1612</span>  <span class="keywordflow">if</span> (info->maxOutputChannels >= info->maxInputChannels)</div>
<div class="line"><a name="l01613"></a><span class="lineno"> 1613</span>  stream = SND_PCM_STREAM_PLAYBACK;</div>
<div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>  stream = SND_PCM_STREAM_CAPTURE;</div>
<div class="line"><a name="l01616"></a><span class="lineno"> 1616</span> </div>
<div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>  err = snd_pcm_open(&handle, info->name, stream, open_mode);</div>
<div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01619"></a><span class="lineno"> 1619</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA pcm (%s) won't reopen during probe: %s."</span>,</div>
<div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01622"></a><span class="lineno"> 1622</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>  }</div>
<div class="line"><a name="l01624"></a><span class="lineno"> 1624</span> </div>
<div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>  <span class="comment">// We have an open device ... allocate the parameter structure.</span></div>
<div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>  err = snd_pcm_hw_params_any(handle, params);</div>
<div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01628"></a><span class="lineno"> 1628</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA hardware reopen probe error (%s): %s."</span>,</div>
<div class="line"><a name="l01630"></a><span class="lineno"> 1630</span>  info->name, snd_strerror(err));</div>
<div class="line"><a name="l01631"></a><span class="lineno"> 1631</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01632"></a><span class="lineno"> 1632</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01633"></a><span class="lineno"> 1633</span>  }</div>
<div class="line"><a name="l01634"></a><span class="lineno"> 1634</span> </div>
<div class="line"><a name="l01635"></a><span class="lineno"> 1635</span>  <span class="comment">// Test a non-standard sample rate to see if continuous rate is supported.</span></div>
<div class="line"><a name="l01636"></a><span class="lineno"> 1636</span>  <span class="keywordtype">int</span> dir = 0;</div>
<div class="line"><a name="l01637"></a><span class="lineno"> 1637</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_rate(handle, params, 35500, dir) == 0) {</div>
<div class="line"><a name="l01638"></a><span class="lineno"> 1638</span>  <span class="comment">// It appears that continuous sample rate support is available.</span></div>
<div class="line"><a name="l01639"></a><span class="lineno"> 1639</span>  info->nSampleRates = -1;</div>
<div class="line"><a name="l01640"></a><span class="lineno"> 1640</span>  info->sampleRates[0] = snd_pcm_hw_params_get_rate_min(params, &dir);</div>
<div class="line"><a name="l01641"></a><span class="lineno"> 1641</span>  info->sampleRates[1] = snd_pcm_hw_params_get_rate_max(params, &dir);</div>
<div class="line"><a name="l01642"></a><span class="lineno"> 1642</span>  }</div>
<div class="line"><a name="l01643"></a><span class="lineno"> 1643</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>  <span class="comment">// No continuous rate support ... test our discrete set of sample rate values.</span></div>
<div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>  info->nSampleRates = 0;</div>
<div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<<a class="code" href="classRtAudio.html#a7405def6b99ff5d2c0f95d885514d61ca30fa0221e6d99b2845bdff75d1894289">MAX_SAMPLE_RATES</a>; i++) {</div>
<div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_rate(handle, params, SAMPLE_RATES[i], dir) == 0) {</div>
<div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>  info->sampleRates[info->nSampleRates] = SAMPLE_RATES[i];</div>
<div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>  info->nSampleRates++;</div>
<div class="line"><a name="l01650"></a><span class="lineno"> 1650</span>  }</div>
<div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>  }</div>
<div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>  <span class="keywordflow">if</span> (info->nSampleRates == 0) {</div>
<div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>  }</div>
<div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>  }</div>
<div class="line"><a name="l01657"></a><span class="lineno"> 1657</span> </div>
<div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>  <span class="comment">// Probe the supported data formats ... we don't care about endian-ness just yet</span></div>
<div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>  snd_pcm_format_t format;</div>
<div class="line"><a name="l01660"></a><span class="lineno"> 1660</span>  info->nativeFormats = 0;</div>
<div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>  format = SND_PCM_FORMAT_S8;</div>
<div class="line"><a name="l01662"></a><span class="lineno"> 1662</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, params, format) == 0)</div>
<div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>  format = SND_PCM_FORMAT_S16;</div>
<div class="line"><a name="l01665"></a><span class="lineno"> 1665</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, params, format) == 0)</div>
<div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l01667"></a><span class="lineno"> 1667</span>  format = SND_PCM_FORMAT_S24;</div>
<div class="line"><a name="l01668"></a><span class="lineno"> 1668</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, params, format) == 0)</div>
<div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>;</div>
<div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>  format = SND_PCM_FORMAT_S32;</div>
<div class="line"><a name="l01671"></a><span class="lineno"> 1671</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, params, format) == 0)</div>
<div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l01673"></a><span class="lineno"> 1673</span>  format = SND_PCM_FORMAT_FLOAT;</div>
<div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, params, format) == 0)</div>
<div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>;</div>
<div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>  format = SND_PCM_FORMAT_FLOAT64;</div>
<div class="line"><a name="l01677"></a><span class="lineno"> 1677</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, params, format) == 0)</div>
<div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>;</div>
<div class="line"><a name="l01679"></a><span class="lineno"> 1679</span> </div>
<div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>  <span class="comment">// Check that we have at least one supported format</span></div>
<div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>  <span class="keywordflow">if</span> (info->nativeFormats == 0) {</div>
<div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA PCM device (%s) data format not supported by RtAudio."</span>,</div>
<div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>  info->name);</div>
<div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01686"></a><span class="lineno"> 1686</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>  }</div>
<div class="line"><a name="l01688"></a><span class="lineno"> 1688</span> </div>
<div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>  <span class="comment">// That's all ... close the device and return</span></div>
<div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>  info->probed = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01693"></a><span class="lineno"> 1693</span> }</div>
<div class="line"><a name="l01694"></a><span class="lineno"> 1694</span> </div>
<div class="line"><a name="l01695"></a><span class="lineno"> 1695</span> <span class="keywordtype">bool</span> RtAudio :: probeDeviceOpen(<span class="keywordtype">int</span> device, RTAUDIO_STREAM *stream,</div>
<div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>  STREAM_MODE mode, <span class="keywordtype">int</span> channels, </div>
<div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>  <span class="keywordtype">int</span> sampleRate, RTAUDIO_FORMAT format,</div>
<div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>  <span class="keywordtype">int</span> *bufferSize, <span class="keywordtype">int</span> numberOfBuffers)</div>
<div class="line"><a name="l01699"></a><span class="lineno"> 1699</span> {</div>
<div class="line"><a name="l01700"></a><span class="lineno"> 1700</span> <span class="preprocessor">#if defined(__RTAUDIO_DEBUG__)</span></div>
<div class="line"><a name="l01701"></a><span class="lineno"> 1701</span> <span class="preprocessor"></span> snd_output_t *out;</div>
<div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>  snd_output_stdio_attach(&out, stderr, 0);</div>
<div class="line"><a name="l01703"></a><span class="lineno"> 1703</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01704"></a><span class="lineno"> 1704</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l01705"></a><span class="lineno"> 1705</span>  <span class="comment">// I'm not using the "plug" interface ... too much inconsistent behavior.</span></div>
<div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *name = devices[device].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a92049c89bab55e94c17a638e7793f676">name</a>;</div>
<div class="line"><a name="l01707"></a><span class="lineno"> 1707</span> </div>
<div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>  snd_pcm_stream_t alsa_stream;</div>
<div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>  <span class="keywordflow">if</span> (mode == OUTPUT)</div>
<div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>  alsa_stream = SND_PCM_STREAM_PLAYBACK;</div>
<div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>  alsa_stream = SND_PCM_STREAM_CAPTURE;</div>
<div class="line"><a name="l01713"></a><span class="lineno"> 1713</span> </div>
<div class="line"><a name="l01714"></a><span class="lineno"> 1714</span>  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>  snd_pcm_t *handle;</div>
<div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>  <span class="keywordtype">int</span> alsa_open_mode = SND_PCM_ASYNC;</div>
<div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>  err = snd_pcm_open(&handle, name, alsa_stream, alsa_open_mode);</div>
<div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>  sprintf(message,<span class="stringliteral">"RtAudio: ALSA pcm device (%s) won't open: %s."</span>,</div>
<div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>  name, snd_strerror(err));</div>
<div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>  }</div>
<div class="line"><a name="l01724"></a><span class="lineno"> 1724</span> </div>
<div class="line"><a name="l01725"></a><span class="lineno"> 1725</span>  <span class="comment">// Fill the parameter structure.</span></div>
<div class="line"><a name="l01726"></a><span class="lineno"> 1726</span>  snd_pcm_hw_params_t *hw_params;</div>
<div class="line"><a name="l01727"></a><span class="lineno"> 1727</span>  snd_pcm_hw_params_alloca(&hw_params);</div>
<div class="line"><a name="l01728"></a><span class="lineno"> 1728</span>  err = snd_pcm_hw_params_any(handle, hw_params);</div>
<div class="line"><a name="l01729"></a><span class="lineno"> 1729</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01730"></a><span class="lineno"> 1730</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01731"></a><span class="lineno"> 1731</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error getting parameter handle (%s): %s."</span>,</div>
<div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>  name, snd_strerror(err));</div>
<div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01734"></a><span class="lineno"> 1734</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>  }</div>
<div class="line"><a name="l01736"></a><span class="lineno"> 1736</span> </div>
<div class="line"><a name="l01737"></a><span class="lineno"> 1737</span> <span class="preprocessor">#if defined(__RTAUDIO_DEBUG__)</span></div>
<div class="line"><a name="l01738"></a><span class="lineno"> 1738</span> <span class="preprocessor"></span> fprintf(stderr, <span class="stringliteral">"\nRtAudio: ALSA dump hardware params just after device open:\n\n"</span>);</div>
<div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>  snd_pcm_hw_params_dump(hw_params, out);</div>
<div class="line"><a name="l01740"></a><span class="lineno"> 1740</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01741"></a><span class="lineno"> 1741</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l01742"></a><span class="lineno"> 1742</span> </div>
<div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>  <span class="comment">// Set access ... try interleaved access first, then non-interleaved</span></div>
<div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>  <span class="keywordflow">if</span> ( !snd_pcm_hw_params_test_access( handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED) ) {</div>
<div class="line"><a name="l01745"></a><span class="lineno"> 1745</span>  err = snd_pcm_hw_params_set_access(handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED);</div>
<div class="line"><a name="l01746"></a><span class="lineno"> 1746</span>  }</div>
<div class="line"><a name="l01747"></a><span class="lineno"> 1747</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( !snd_pcm_hw_params_test_access( handle, hw_params, SND_PCM_ACCESS_RW_NONINTERLEAVED) ) {</div>
<div class="line"><a name="l01748"></a><span class="lineno"> 1748</span>  err = snd_pcm_hw_params_set_access(handle, hw_params, SND_PCM_ACCESS_RW_NONINTERLEAVED);</div>
<div class="line"><a name="l01749"></a><span class="lineno"> 1749</span>  stream->deInterleave[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01750"></a><span class="lineno"> 1750</span>  }</div>
<div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA device (%s) access not supported by RtAudio."</span>, name);</div>
<div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>  }</div>
<div class="line"><a name="l01757"></a><span class="lineno"> 1757</span> </div>
<div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01760"></a><span class="lineno"> 1760</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error setting access ( (%s): %s."</span>, name, snd_strerror(err));</div>
<div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01763"></a><span class="lineno"> 1763</span>  }</div>
<div class="line"><a name="l01764"></a><span class="lineno"> 1764</span> </div>
<div class="line"><a name="l01765"></a><span class="lineno"> 1765</span>  <span class="comment">// Determine how to set the device format.</span></div>
<div class="line"><a name="l01766"></a><span class="lineno"> 1766</span>  stream->userFormat = format;</div>
<div class="line"><a name="l01767"></a><span class="lineno"> 1767</span>  snd_pcm_format_t device_format;</div>
<div class="line"><a name="l01768"></a><span class="lineno"> 1768</span> </div>
<div class="line"><a name="l01769"></a><span class="lineno"> 1769</span>  <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>)</div>
<div class="line"><a name="l01770"></a><span class="lineno"> 1770</span>  device_format = SND_PCM_FORMAT_S8;</div>
<div class="line"><a name="l01771"></a><span class="lineno"> 1771</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>)</div>
<div class="line"><a name="l01772"></a><span class="lineno"> 1772</span>  device_format = SND_PCM_FORMAT_S16;</div>
<div class="line"><a name="l01773"></a><span class="lineno"> 1773</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>)</div>
<div class="line"><a name="l01774"></a><span class="lineno"> 1774</span>  device_format = SND_PCM_FORMAT_S24;</div>
<div class="line"><a name="l01775"></a><span class="lineno"> 1775</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>)</div>
<div class="line"><a name="l01776"></a><span class="lineno"> 1776</span>  device_format = SND_PCM_FORMAT_S32;</div>
<div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>)</div>
<div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>  device_format = SND_PCM_FORMAT_FLOAT;</div>
<div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>)</div>
<div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>  device_format = SND_PCM_FORMAT_FLOAT64;</div>
<div class="line"><a name="l01781"></a><span class="lineno"> 1781</span> </div>
<div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, hw_params, device_format) == 0) {</div>
<div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>  stream->deviceFormat[mode] = format;</div>
<div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>  <span class="keywordflow">goto</span> set_format;</div>
<div class="line"><a name="l01785"></a><span class="lineno"> 1785</span>  }</div>
<div class="line"><a name="l01786"></a><span class="lineno"> 1786</span> </div>
<div class="line"><a name="l01787"></a><span class="lineno"> 1787</span>  <span class="comment">// The user requested format is not natively supported by the device.</span></div>
<div class="line"><a name="l01788"></a><span class="lineno"> 1788</span>  device_format = SND_PCM_FORMAT_FLOAT64;</div>
<div class="line"><a name="l01789"></a><span class="lineno"> 1789</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, hw_params, device_format) == 0) {</div>
<div class="line"><a name="l01790"></a><span class="lineno"> 1790</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>;</div>
<div class="line"><a name="l01791"></a><span class="lineno"> 1791</span>  <span class="keywordflow">goto</span> set_format;</div>
<div class="line"><a name="l01792"></a><span class="lineno"> 1792</span>  }</div>
<div class="line"><a name="l01793"></a><span class="lineno"> 1793</span> </div>
<div class="line"><a name="l01794"></a><span class="lineno"> 1794</span>  device_format = SND_PCM_FORMAT_FLOAT;</div>
<div class="line"><a name="l01795"></a><span class="lineno"> 1795</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, hw_params, device_format) == 0) {</div>
<div class="line"><a name="l01796"></a><span class="lineno"> 1796</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>;</div>
<div class="line"><a name="l01797"></a><span class="lineno"> 1797</span>  <span class="keywordflow">goto</span> set_format;</div>
<div class="line"><a name="l01798"></a><span class="lineno"> 1798</span>  }</div>
<div class="line"><a name="l01799"></a><span class="lineno"> 1799</span> </div>
<div class="line"><a name="l01800"></a><span class="lineno"> 1800</span>  device_format = SND_PCM_FORMAT_S32;</div>
<div class="line"><a name="l01801"></a><span class="lineno"> 1801</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, hw_params, device_format) == 0) {</div>
<div class="line"><a name="l01802"></a><span class="lineno"> 1802</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l01803"></a><span class="lineno"> 1803</span>  <span class="keywordflow">goto</span> set_format;</div>
<div class="line"><a name="l01804"></a><span class="lineno"> 1804</span>  }</div>
<div class="line"><a name="l01805"></a><span class="lineno"> 1805</span> </div>
<div class="line"><a name="l01806"></a><span class="lineno"> 1806</span>  device_format = SND_PCM_FORMAT_S24;</div>
<div class="line"><a name="l01807"></a><span class="lineno"> 1807</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, hw_params, device_format) == 0) {</div>
<div class="line"><a name="l01808"></a><span class="lineno"> 1808</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>;</div>
<div class="line"><a name="l01809"></a><span class="lineno"> 1809</span>  <span class="keywordflow">goto</span> set_format;</div>
<div class="line"><a name="l01810"></a><span class="lineno"> 1810</span>  }</div>
<div class="line"><a name="l01811"></a><span class="lineno"> 1811</span> </div>
<div class="line"><a name="l01812"></a><span class="lineno"> 1812</span>  device_format = SND_PCM_FORMAT_S16;</div>
<div class="line"><a name="l01813"></a><span class="lineno"> 1813</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, hw_params, device_format) == 0) {</div>
<div class="line"><a name="l01814"></a><span class="lineno"> 1814</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l01815"></a><span class="lineno"> 1815</span>  <span class="keywordflow">goto</span> set_format;</div>
<div class="line"><a name="l01816"></a><span class="lineno"> 1816</span>  }</div>
<div class="line"><a name="l01817"></a><span class="lineno"> 1817</span> </div>
<div class="line"><a name="l01818"></a><span class="lineno"> 1818</span>  device_format = SND_PCM_FORMAT_S8;</div>
<div class="line"><a name="l01819"></a><span class="lineno"> 1819</span>  <span class="keywordflow">if</span> (snd_pcm_hw_params_test_format(handle, hw_params, device_format) == 0) {</div>
<div class="line"><a name="l01820"></a><span class="lineno"> 1820</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l01821"></a><span class="lineno"> 1821</span>  <span class="keywordflow">goto</span> set_format;</div>
<div class="line"><a name="l01822"></a><span class="lineno"> 1822</span>  }</div>
<div class="line"><a name="l01823"></a><span class="lineno"> 1823</span> </div>
<div class="line"><a name="l01824"></a><span class="lineno"> 1824</span>  <span class="comment">// If we get here, no supported format was found.</span></div>
<div class="line"><a name="l01825"></a><span class="lineno"> 1825</span>  sprintf(message,<span class="stringliteral">"RtAudio: ALSA pcm device (%s) data format not supported by RtAudio."</span>, name);</div>
<div class="line"><a name="l01826"></a><span class="lineno"> 1826</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01827"></a><span class="lineno"> 1827</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01828"></a><span class="lineno"> 1828</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01829"></a><span class="lineno"> 1829</span> </div>
<div class="line"><a name="l01830"></a><span class="lineno"> 1830</span>  set_format:</div>
<div class="line"><a name="l01831"></a><span class="lineno"> 1831</span>  err = snd_pcm_hw_params_set_format(handle, hw_params, device_format);</div>
<div class="line"><a name="l01832"></a><span class="lineno"> 1832</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01833"></a><span class="lineno"> 1833</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01834"></a><span class="lineno"> 1834</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error setting format (%s): %s."</span>,</div>
<div class="line"><a name="l01835"></a><span class="lineno"> 1835</span>  name, snd_strerror(err));</div>
<div class="line"><a name="l01836"></a><span class="lineno"> 1836</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01837"></a><span class="lineno"> 1837</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01838"></a><span class="lineno"> 1838</span>  }</div>
<div class="line"><a name="l01839"></a><span class="lineno"> 1839</span> </div>
<div class="line"><a name="l01840"></a><span class="lineno"> 1840</span>  <span class="comment">// Determine whether byte-swaping is necessary.</span></div>
<div class="line"><a name="l01841"></a><span class="lineno"> 1841</span>  stream->doByteSwap[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l01842"></a><span class="lineno"> 1842</span>  <span class="keywordflow">if</span> (device_format != SND_PCM_FORMAT_S8) {</div>
<div class="line"><a name="l01843"></a><span class="lineno"> 1843</span>  err = snd_pcm_format_cpu_endian(device_format);</div>
<div class="line"><a name="l01844"></a><span class="lineno"> 1844</span>  <span class="keywordflow">if</span> (err == 0)</div>
<div class="line"><a name="l01845"></a><span class="lineno"> 1845</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01846"></a><span class="lineno"> 1846</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01847"></a><span class="lineno"> 1847</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01848"></a><span class="lineno"> 1848</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error getting format endian-ness (%s): %s."</span>,</div>
<div class="line"><a name="l01849"></a><span class="lineno"> 1849</span>  name, snd_strerror(err));</div>
<div class="line"><a name="l01850"></a><span class="lineno"> 1850</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01851"></a><span class="lineno"> 1851</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01852"></a><span class="lineno"> 1852</span>  }</div>
<div class="line"><a name="l01853"></a><span class="lineno"> 1853</span>  }</div>
<div class="line"><a name="l01854"></a><span class="lineno"> 1854</span> </div>
<div class="line"><a name="l01855"></a><span class="lineno"> 1855</span>  <span class="comment">// Set the sample rate.</span></div>
<div class="line"><a name="l01856"></a><span class="lineno"> 1856</span>  err = snd_pcm_hw_params_set_rate(handle, hw_params, (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)sampleRate, 0);</div>
<div class="line"><a name="l01857"></a><span class="lineno"> 1857</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01858"></a><span class="lineno"> 1858</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01859"></a><span class="lineno"> 1859</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error setting sample rate (%d) on device (%s): %s."</span>,</div>
<div class="line"><a name="l01860"></a><span class="lineno"> 1860</span>  sampleRate, name, snd_strerror(err));</div>
<div class="line"><a name="l01861"></a><span class="lineno"> 1861</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01862"></a><span class="lineno"> 1862</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01863"></a><span class="lineno"> 1863</span>  }</div>
<div class="line"><a name="l01864"></a><span class="lineno"> 1864</span> </div>
<div class="line"><a name="l01865"></a><span class="lineno"> 1865</span>  <span class="comment">// Determine the number of channels for this device. We support a possible</span></div>
<div class="line"><a name="l01866"></a><span class="lineno"> 1866</span>  <span class="comment">// minimum device channel number > than the value requested by the user.</span></div>
<div class="line"><a name="l01867"></a><span class="lineno"> 1867</span>  stream->nUserChannels[mode] = channels;</div>
<div class="line"><a name="l01868"></a><span class="lineno"> 1868</span>  <span class="keywordtype">int</span> device_channels = snd_pcm_hw_params_get_channels_max(hw_params);</div>
<div class="line"><a name="l01869"></a><span class="lineno"> 1869</span>  <span class="keywordflow">if</span> (device_channels < channels) {</div>
<div class="line"><a name="l01870"></a><span class="lineno"> 1870</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01871"></a><span class="lineno"> 1871</span>  sprintf(message, <span class="stringliteral">"RtAudio: channels (%d) not supported by device (%s)."</span>,</div>
<div class="line"><a name="l01872"></a><span class="lineno"> 1872</span>  channels, name);</div>
<div class="line"><a name="l01873"></a><span class="lineno"> 1873</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01874"></a><span class="lineno"> 1874</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01875"></a><span class="lineno"> 1875</span>  }</div>
<div class="line"><a name="l01876"></a><span class="lineno"> 1876</span> </div>
<div class="line"><a name="l01877"></a><span class="lineno"> 1877</span>  device_channels = snd_pcm_hw_params_get_channels_min(hw_params);</div>
<div class="line"><a name="l01878"></a><span class="lineno"> 1878</span>  <span class="keywordflow">if</span> (device_channels < channels) device_channels = channels;</div>
<div class="line"><a name="l01879"></a><span class="lineno"> 1879</span>  stream->nDeviceChannels[mode] = device_channels;</div>
<div class="line"><a name="l01880"></a><span class="lineno"> 1880</span> </div>
<div class="line"><a name="l01881"></a><span class="lineno"> 1881</span>  <span class="comment">// Set the device channels.</span></div>
<div class="line"><a name="l01882"></a><span class="lineno"> 1882</span>  err = snd_pcm_hw_params_set_channels(handle, hw_params, device_channels);</div>
<div class="line"><a name="l01883"></a><span class="lineno"> 1883</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01884"></a><span class="lineno"> 1884</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01885"></a><span class="lineno"> 1885</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error setting channels (%d) on device (%s): %s."</span>,</div>
<div class="line"><a name="l01886"></a><span class="lineno"> 1886</span>  device_channels, name, snd_strerror(err));</div>
<div class="line"><a name="l01887"></a><span class="lineno"> 1887</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01888"></a><span class="lineno"> 1888</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01889"></a><span class="lineno"> 1889</span>  }</div>
<div class="line"><a name="l01890"></a><span class="lineno"> 1890</span> </div>
<div class="line"><a name="l01891"></a><span class="lineno"> 1891</span>  <span class="comment">// Set the buffer number, which in ALSA is referred to as the "period".</span></div>
<div class="line"><a name="l01892"></a><span class="lineno"> 1892</span>  <span class="keywordtype">int</span> dir;</div>
<div class="line"><a name="l01893"></a><span class="lineno"> 1893</span>  <span class="keywordtype">int</span> periods = numberOfBuffers;</div>
<div class="line"><a name="l01894"></a><span class="lineno"> 1894</span>  <span class="comment">// Even though the hardware might allow 1 buffer, it won't work reliably.</span></div>
<div class="line"><a name="l01895"></a><span class="lineno"> 1895</span>  <span class="keywordflow">if</span> (periods < 2) periods = 2;</div>
<div class="line"><a name="l01896"></a><span class="lineno"> 1896</span>  err = snd_pcm_hw_params_get_periods_min(hw_params, &dir);</div>
<div class="line"><a name="l01897"></a><span class="lineno"> 1897</span>  <span class="keywordflow">if</span> (err > periods) periods = err;</div>
<div class="line"><a name="l01898"></a><span class="lineno"> 1898</span>  err = snd_pcm_hw_params_get_periods_max(hw_params, &dir);</div>
<div class="line"><a name="l01899"></a><span class="lineno"> 1899</span>  <span class="keywordflow">if</span> (err < periods) periods = err;</div>
<div class="line"><a name="l01900"></a><span class="lineno"> 1900</span> </div>
<div class="line"><a name="l01901"></a><span class="lineno"> 1901</span>  err = snd_pcm_hw_params_set_periods(handle, hw_params, periods, 0);</div>
<div class="line"><a name="l01902"></a><span class="lineno"> 1902</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01903"></a><span class="lineno"> 1903</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01904"></a><span class="lineno"> 1904</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error setting periods (%s): %s."</span>,</div>
<div class="line"><a name="l01905"></a><span class="lineno"> 1905</span>  name, snd_strerror(err));</div>
<div class="line"><a name="l01906"></a><span class="lineno"> 1906</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01907"></a><span class="lineno"> 1907</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01908"></a><span class="lineno"> 1908</span>  }</div>
<div class="line"><a name="l01909"></a><span class="lineno"> 1909</span> </div>
<div class="line"><a name="l01910"></a><span class="lineno"> 1910</span>  <span class="comment">// Set the buffer (or period) size.</span></div>
<div class="line"><a name="l01911"></a><span class="lineno"> 1911</span>  err = snd_pcm_hw_params_get_period_size_min(hw_params, &dir);</div>
<div class="line"><a name="l01912"></a><span class="lineno"> 1912</span>  <span class="keywordflow">if</span> (err > *bufferSize) *bufferSize = err;</div>
<div class="line"><a name="l01913"></a><span class="lineno"> 1913</span> </div>
<div class="line"><a name="l01914"></a><span class="lineno"> 1914</span>  err = snd_pcm_hw_params_set_period_size(handle, hw_params, *bufferSize, 0);</div>
<div class="line"><a name="l01915"></a><span class="lineno"> 1915</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01916"></a><span class="lineno"> 1916</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01917"></a><span class="lineno"> 1917</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error setting period size (%s): %s."</span>,</div>
<div class="line"><a name="l01918"></a><span class="lineno"> 1918</span>  name, snd_strerror(err));</div>
<div class="line"><a name="l01919"></a><span class="lineno"> 1919</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01920"></a><span class="lineno"> 1920</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01921"></a><span class="lineno"> 1921</span>  }</div>
<div class="line"><a name="l01922"></a><span class="lineno"> 1922</span> </div>
<div class="line"><a name="l01923"></a><span class="lineno"> 1923</span>  <span class="comment">// If attempting to setup a duplex stream, the bufferSize parameter</span></div>
<div class="line"><a name="l01924"></a><span class="lineno"> 1924</span>  <span class="comment">// MUST be the same in both directions!</span></div>
<div class="line"><a name="l01925"></a><span class="lineno"> 1925</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && mode == INPUT && *bufferSize != stream->bufferSize ) {</div>
<div class="line"><a name="l01926"></a><span class="lineno"> 1926</span>  sprintf( message, <span class="stringliteral">"RtAudio: ALSA error setting buffer size for duplex stream on device (%s)."</span>,</div>
<div class="line"><a name="l01927"></a><span class="lineno"> 1927</span>  name );</div>
<div class="line"><a name="l01928"></a><span class="lineno"> 1928</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l01929"></a><span class="lineno"> 1929</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01930"></a><span class="lineno"> 1930</span>  }</div>
<div class="line"><a name="l01931"></a><span class="lineno"> 1931</span> </div>
<div class="line"><a name="l01932"></a><span class="lineno"> 1932</span>  stream->bufferSize = *bufferSize;</div>
<div class="line"><a name="l01933"></a><span class="lineno"> 1933</span> </div>
<div class="line"><a name="l01934"></a><span class="lineno"> 1934</span>  <span class="comment">// Install the hardware configuration</span></div>
<div class="line"><a name="l01935"></a><span class="lineno"> 1935</span>  err = snd_pcm_hw_params(handle, hw_params);</div>
<div class="line"><a name="l01936"></a><span class="lineno"> 1936</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l01937"></a><span class="lineno"> 1937</span>  snd_pcm_close(handle);</div>
<div class="line"><a name="l01938"></a><span class="lineno"> 1938</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error installing hardware configuration (%s): %s."</span>,</div>
<div class="line"><a name="l01939"></a><span class="lineno"> 1939</span>  name, snd_strerror(err));</div>
<div class="line"><a name="l01940"></a><span class="lineno"> 1940</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l01941"></a><span class="lineno"> 1941</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l01942"></a><span class="lineno"> 1942</span>  }</div>
<div class="line"><a name="l01943"></a><span class="lineno"> 1943</span> </div>
<div class="line"><a name="l01944"></a><span class="lineno"> 1944</span> <span class="preprocessor">#if defined(__RTAUDIO_DEBUG__)</span></div>
<div class="line"><a name="l01945"></a><span class="lineno"> 1945</span> <span class="preprocessor"></span> fprintf(stderr, <span class="stringliteral">"\nRtAudio: ALSA dump hardware params after installation:\n\n"</span>);</div>
<div class="line"><a name="l01946"></a><span class="lineno"> 1946</span>  snd_pcm_hw_params_dump(hw_params, out);</div>
<div class="line"><a name="l01947"></a><span class="lineno"> 1947</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01948"></a><span class="lineno"> 1948</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l01949"></a><span class="lineno"> 1949</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l01950"></a><span class="lineno"> 1950</span> <span class="comment"> // Install the software configuration</span></div>
<div class="line"><a name="l01951"></a><span class="lineno"> 1951</span> <span class="comment"> snd_pcm_sw_params_t *sw_params = NULL;</span></div>
<div class="line"><a name="l01952"></a><span class="lineno"> 1952</span> <span class="comment"> snd_pcm_sw_params_alloca(&sw_params);</span></div>
<div class="line"><a name="l01953"></a><span class="lineno"> 1953</span> <span class="comment"> snd_pcm_sw_params_current(handle, sw_params);</span></div>
<div class="line"><a name="l01954"></a><span class="lineno"> 1954</span> <span class="comment"> err = snd_pcm_sw_params(handle, sw_params);</span></div>
<div class="line"><a name="l01955"></a><span class="lineno"> 1955</span> <span class="comment"> if (err < 0) {</span></div>
<div class="line"><a name="l01956"></a><span class="lineno"> 1956</span> <span class="comment"> snd_pcm_close(handle);</span></div>
<div class="line"><a name="l01957"></a><span class="lineno"> 1957</span> <span class="comment"> sprintf(message, "RtAudio: ALSA error installing software configuration (%s): %s.",</span></div>
<div class="line"><a name="l01958"></a><span class="lineno"> 1958</span> <span class="comment"> name, snd_strerror(err));</span></div>
<div class="line"><a name="l01959"></a><span class="lineno"> 1959</span> <span class="comment"> error(RtError::WARNING);</span></div>
<div class="line"><a name="l01960"></a><span class="lineno"> 1960</span> <span class="comment"> return FAILURE;</span></div>
<div class="line"><a name="l01961"></a><span class="lineno"> 1961</span> <span class="comment"> }</span></div>
<div class="line"><a name="l01962"></a><span class="lineno"> 1962</span> <span class="comment"> */</span></div>
<div class="line"><a name="l01963"></a><span class="lineno"> 1963</span> </div>
<div class="line"><a name="l01964"></a><span class="lineno"> 1964</span>  <span class="comment">// Set handle and flags for buffer conversion</span></div>
<div class="line"><a name="l01965"></a><span class="lineno"> 1965</span>  stream->handle[mode] = handle;</div>
<div class="line"><a name="l01966"></a><span class="lineno"> 1966</span>  stream->doConvertBuffer[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l01967"></a><span class="lineno"> 1967</span>  <span class="keywordflow">if</span> (stream->userFormat != stream->deviceFormat[mode])</div>
<div class="line"><a name="l01968"></a><span class="lineno"> 1968</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01969"></a><span class="lineno"> 1969</span>  <span class="keywordflow">if</span> (stream->nUserChannels[mode] < stream->nDeviceChannels[mode])</div>
<div class="line"><a name="l01970"></a><span class="lineno"> 1970</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01971"></a><span class="lineno"> 1971</span>  <span class="keywordflow">if</span> (stream->nUserChannels[mode] > 1 && stream->deInterleave[mode])</div>
<div class="line"><a name="l01972"></a><span class="lineno"> 1972</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01973"></a><span class="lineno"> 1973</span> </div>
<div class="line"><a name="l01974"></a><span class="lineno"> 1974</span>  <span class="comment">// Allocate necessary internal buffers</span></div>
<div class="line"><a name="l01975"></a><span class="lineno"> 1975</span>  <span class="keywordflow">if</span> ( stream->nUserChannels[0] != stream->nUserChannels[1] ) {</div>
<div class="line"><a name="l01976"></a><span class="lineno"> 1976</span> </div>
<div class="line"><a name="l01977"></a><span class="lineno"> 1977</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l01978"></a><span class="lineno"> 1978</span>  <span class="keywordflow">if</span> (stream->nUserChannels[0] >= stream->nUserChannels[1])</div>
<div class="line"><a name="l01979"></a><span class="lineno"> 1979</span>  buffer_bytes = stream->nUserChannels[0];</div>
<div class="line"><a name="l01980"></a><span class="lineno"> 1980</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l01981"></a><span class="lineno"> 1981</span>  buffer_bytes = stream->nUserChannels[1];</div>
<div class="line"><a name="l01982"></a><span class="lineno"> 1982</span> </div>
<div class="line"><a name="l01983"></a><span class="lineno"> 1983</span>  buffer_bytes *= *bufferSize * formatBytes(stream->userFormat);</div>
<div class="line"><a name="l01984"></a><span class="lineno"> 1984</span>  <span class="keywordflow">if</span> (stream->userBuffer) free(stream->userBuffer);</div>
<div class="line"><a name="l01985"></a><span class="lineno"> 1985</span>  stream->userBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l01986"></a><span class="lineno"> 1986</span>  <span class="keywordflow">if</span> (stream->userBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l01987"></a><span class="lineno"> 1987</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l01988"></a><span class="lineno"> 1988</span>  }</div>
<div class="line"><a name="l01989"></a><span class="lineno"> 1989</span> </div>
<div class="line"><a name="l01990"></a><span class="lineno"> 1990</span>  <span class="keywordflow">if</span> ( stream->doConvertBuffer[mode] ) {</div>
<div class="line"><a name="l01991"></a><span class="lineno"> 1991</span> </div>
<div class="line"><a name="l01992"></a><span class="lineno"> 1992</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l01993"></a><span class="lineno"> 1993</span>  <span class="keywordtype">bool</span> makeBuffer = <span class="keyword">true</span>;</div>
<div class="line"><a name="l01994"></a><span class="lineno"> 1994</span>  <span class="keywordflow">if</span> ( mode == OUTPUT )</div>
<div class="line"><a name="l01995"></a><span class="lineno"> 1995</span>  buffer_bytes = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l01996"></a><span class="lineno"> 1996</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l01997"></a><span class="lineno"> 1997</span>  buffer_bytes = stream->nDeviceChannels[1] * formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l01998"></a><span class="lineno"> 1998</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && stream->deviceBuffer ) {</div>
<div class="line"><a name="l01999"></a><span class="lineno"> 1999</span>  <span class="keywordtype">long</span> bytes_out = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l02000"></a><span class="lineno"> 2000</span>  <span class="keywordflow">if</span> ( buffer_bytes < bytes_out ) makeBuffer = <span class="keyword">false</span>;</div>
<div class="line"><a name="l02001"></a><span class="lineno"> 2001</span>  }</div>
<div class="line"><a name="l02002"></a><span class="lineno"> 2002</span>  }</div>
<div class="line"><a name="l02003"></a><span class="lineno"> 2003</span> </div>
<div class="line"><a name="l02004"></a><span class="lineno"> 2004</span>  <span class="keywordflow">if</span> ( makeBuffer ) {</div>
<div class="line"><a name="l02005"></a><span class="lineno"> 2005</span>  buffer_bytes *= *bufferSize;</div>
<div class="line"><a name="l02006"></a><span class="lineno"> 2006</span>  <span class="keywordflow">if</span> (stream->deviceBuffer) free(stream->deviceBuffer);</div>
<div class="line"><a name="l02007"></a><span class="lineno"> 2007</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l02008"></a><span class="lineno"> 2008</span>  <span class="keywordflow">if</span> (stream->deviceBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l02009"></a><span class="lineno"> 2009</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l02010"></a><span class="lineno"> 2010</span>  }</div>
<div class="line"><a name="l02011"></a><span class="lineno"> 2011</span>  }</div>
<div class="line"><a name="l02012"></a><span class="lineno"> 2012</span> </div>
<div class="line"><a name="l02013"></a><span class="lineno"> 2013</span>  stream->device[mode] = device;</div>
<div class="line"><a name="l02014"></a><span class="lineno"> 2014</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l02015"></a><span class="lineno"> 2015</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && mode == INPUT )</div>
<div class="line"><a name="l02016"></a><span class="lineno"> 2016</span>  <span class="comment">// We had already set up an output stream.</span></div>
<div class="line"><a name="l02017"></a><span class="lineno"> 2017</span>  stream->mode = DUPLEX;</div>
<div class="line"><a name="l02018"></a><span class="lineno"> 2018</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l02019"></a><span class="lineno"> 2019</span>  stream->mode = mode;</div>
<div class="line"><a name="l02020"></a><span class="lineno"> 2020</span>  stream->nBuffers = periods;</div>
<div class="line"><a name="l02021"></a><span class="lineno"> 2021</span>  stream->sampleRate = sampleRate;</div>
<div class="line"><a name="l02022"></a><span class="lineno"> 2022</span> </div>
<div class="line"><a name="l02023"></a><span class="lineno"> 2023</span>  <span class="keywordflow">return</span> SUCCESS;</div>
<div class="line"><a name="l02024"></a><span class="lineno"> 2024</span> </div>
<div class="line"><a name="l02025"></a><span class="lineno"> 2025</span>  memory_error:</div>
<div class="line"><a name="l02026"></a><span class="lineno"> 2026</span>  <span class="keywordflow">if</span> (stream->handle[0]) {</div>
<div class="line"><a name="l02027"></a><span class="lineno"> 2027</span>  snd_pcm_close(stream->handle[0]);</div>
<div class="line"><a name="l02028"></a><span class="lineno"> 2028</span>  stream->handle[0] = 0;</div>
<div class="line"><a name="l02029"></a><span class="lineno"> 2029</span>  }</div>
<div class="line"><a name="l02030"></a><span class="lineno"> 2030</span>  <span class="keywordflow">if</span> (stream->handle[1]) {</div>
<div class="line"><a name="l02031"></a><span class="lineno"> 2031</span>  snd_pcm_close(stream->handle[1]);</div>
<div class="line"><a name="l02032"></a><span class="lineno"> 2032</span>  stream->handle[1] = 0;</div>
<div class="line"><a name="l02033"></a><span class="lineno"> 2033</span>  }</div>
<div class="line"><a name="l02034"></a><span class="lineno"> 2034</span>  <span class="keywordflow">if</span> (stream->userBuffer) {</div>
<div class="line"><a name="l02035"></a><span class="lineno"> 2035</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l02036"></a><span class="lineno"> 2036</span>  stream->userBuffer = 0;</div>
<div class="line"><a name="l02037"></a><span class="lineno"> 2037</span>  }</div>
<div class="line"><a name="l02038"></a><span class="lineno"> 2038</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error allocating buffer memory (%s)."</span>, name);</div>
<div class="line"><a name="l02039"></a><span class="lineno"> 2039</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l02040"></a><span class="lineno"> 2040</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l02041"></a><span class="lineno"> 2041</span> }</div>
<div class="line"><a name="l02042"></a><span class="lineno"> 2042</span> </div>
<div class="line"><a name="l02043"></a><span class="lineno"> 2043</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a9b25382cabd65d739f2718f8647f1066" title="Public method which closes a stream and frees any associated buffers.">RtAudio :: closeStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l02044"></a><span class="lineno"> 2044</span> {</div>
<div class="line"><a name="l02045"></a><span class="lineno"> 2045</span>  <span class="comment">// We don't want an exception to be thrown here because this</span></div>
<div class="line"><a name="l02046"></a><span class="lineno"> 2046</span>  <span class="comment">// function is called by our class destructor. So, do our own</span></div>
<div class="line"><a name="l02047"></a><span class="lineno"> 2047</span>  <span class="comment">// streamId check.</span></div>
<div class="line"><a name="l02048"></a><span class="lineno"> 2048</span>  <span class="keywordflow">if</span> ( streams.find( streamId ) == streams.end() ) {</div>
<div class="line"><a name="l02049"></a><span class="lineno"> 2049</span>  sprintf(message, <span class="stringliteral">"RtAudio: invalid stream identifier!"</span>);</div>
<div class="line"><a name="l02050"></a><span class="lineno"> 2050</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l02051"></a><span class="lineno"> 2051</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02052"></a><span class="lineno"> 2052</span>  }</div>
<div class="line"><a name="l02053"></a><span class="lineno"> 2053</span> </div>
<div class="line"><a name="l02054"></a><span class="lineno"> 2054</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) streams[streamId];</div>
<div class="line"><a name="l02055"></a><span class="lineno"> 2055</span> </div>
<div class="line"><a name="l02056"></a><span class="lineno"> 2056</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l02057"></a><span class="lineno"> 2057</span>  pthread_cancel(stream->callbackInfo.thread);</div>
<div class="line"><a name="l02058"></a><span class="lineno"> 2058</span>  pthread_join(stream->callbackInfo.thread, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l02059"></a><span class="lineno"> 2059</span>  }</div>
<div class="line"><a name="l02060"></a><span class="lineno"> 2060</span> </div>
<div class="line"><a name="l02061"></a><span class="lineno"> 2061</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING) {</div>
<div class="line"><a name="l02062"></a><span class="lineno"> 2062</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX)</div>
<div class="line"><a name="l02063"></a><span class="lineno"> 2063</span>  snd_pcm_drop(stream->handle[0]);</div>
<div class="line"><a name="l02064"></a><span class="lineno"> 2064</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX)</div>
<div class="line"><a name="l02065"></a><span class="lineno"> 2065</span>  snd_pcm_drop(stream->handle[1]);</div>
<div class="line"><a name="l02066"></a><span class="lineno"> 2066</span>  }</div>
<div class="line"><a name="l02067"></a><span class="lineno"> 2067</span> </div>
<div class="line"><a name="l02068"></a><span class="lineno"> 2068</span>  pthread_mutex_destroy(&stream->mutex);</div>
<div class="line"><a name="l02069"></a><span class="lineno"> 2069</span> </div>
<div class="line"><a name="l02070"></a><span class="lineno"> 2070</span>  <span class="keywordflow">if</span> (stream->handle[0])</div>
<div class="line"><a name="l02071"></a><span class="lineno"> 2071</span>  snd_pcm_close(stream->handle[0]);</div>
<div class="line"><a name="l02072"></a><span class="lineno"> 2072</span> </div>
<div class="line"><a name="l02073"></a><span class="lineno"> 2073</span>  <span class="keywordflow">if</span> (stream->handle[1])</div>
<div class="line"><a name="l02074"></a><span class="lineno"> 2074</span>  snd_pcm_close(stream->handle[1]);</div>
<div class="line"><a name="l02075"></a><span class="lineno"> 2075</span> </div>
<div class="line"><a name="l02076"></a><span class="lineno"> 2076</span>  <span class="keywordflow">if</span> (stream->userBuffer)</div>
<div class="line"><a name="l02077"></a><span class="lineno"> 2077</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l02078"></a><span class="lineno"> 2078</span> </div>
<div class="line"><a name="l02079"></a><span class="lineno"> 2079</span>  <span class="keywordflow">if</span> (stream->deviceBuffer)</div>
<div class="line"><a name="l02080"></a><span class="lineno"> 2080</span>  free(stream->deviceBuffer);</div>
<div class="line"><a name="l02081"></a><span class="lineno"> 2081</span> </div>
<div class="line"><a name="l02082"></a><span class="lineno"> 2082</span>  free(stream);</div>
<div class="line"><a name="l02083"></a><span class="lineno"> 2083</span>  streams.erase(streamId);</div>
<div class="line"><a name="l02084"></a><span class="lineno"> 2084</span> }</div>
<div class="line"><a name="l02085"></a><span class="lineno"> 2085</span> </div>
<div class="line"><a name="l02086"></a><span class="lineno"> 2086</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a304d9fc57cee6539bb1d98b82b10508f" title="Public method which starts a stream.">RtAudio :: startStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l02087"></a><span class="lineno"> 2087</span> {</div>
<div class="line"><a name="l02088"></a><span class="lineno"> 2088</span>  <span class="comment">// This method calls snd_pcm_prepare if the device isn't already in that state.</span></div>
<div class="line"><a name="l02089"></a><span class="lineno"> 2089</span> </div>
<div class="line"><a name="l02090"></a><span class="lineno"> 2090</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l02091"></a><span class="lineno"> 2091</span> </div>
<div class="line"><a name="l02092"></a><span class="lineno"> 2092</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02093"></a><span class="lineno"> 2093</span> </div>
<div class="line"><a name="l02094"></a><span class="lineno"> 2094</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l02095"></a><span class="lineno"> 2095</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l02096"></a><span class="lineno"> 2096</span> </div>
<div class="line"><a name="l02097"></a><span class="lineno"> 2097</span>  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l02098"></a><span class="lineno"> 2098</span>  snd_pcm_state_t state;</div>
<div class="line"><a name="l02099"></a><span class="lineno"> 2099</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02100"></a><span class="lineno"> 2100</span>  state = snd_pcm_state(stream->handle[0]);</div>
<div class="line"><a name="l02101"></a><span class="lineno"> 2101</span>  <span class="keywordflow">if</span> (state != SND_PCM_STATE_PREPARED) {</div>
<div class="line"><a name="l02102"></a><span class="lineno"> 2102</span>  err = snd_pcm_prepare(stream->handle[0]);</div>
<div class="line"><a name="l02103"></a><span class="lineno"> 2103</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02104"></a><span class="lineno"> 2104</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error preparing pcm device (%s): %s."</span>,</div>
<div class="line"><a name="l02105"></a><span class="lineno"> 2105</span>  devices[stream->device[0]].name, snd_strerror(err));</div>
<div class="line"><a name="l02106"></a><span class="lineno"> 2106</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02107"></a><span class="lineno"> 2107</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02108"></a><span class="lineno"> 2108</span>  }</div>
<div class="line"><a name="l02109"></a><span class="lineno"> 2109</span>  }</div>
<div class="line"><a name="l02110"></a><span class="lineno"> 2110</span>  }</div>
<div class="line"><a name="l02111"></a><span class="lineno"> 2111</span> </div>
<div class="line"><a name="l02112"></a><span class="lineno"> 2112</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02113"></a><span class="lineno"> 2113</span>  state = snd_pcm_state(stream->handle[1]);</div>
<div class="line"><a name="l02114"></a><span class="lineno"> 2114</span>  <span class="keywordflow">if</span> (state != SND_PCM_STATE_PREPARED) {</div>
<div class="line"><a name="l02115"></a><span class="lineno"> 2115</span>  err = snd_pcm_prepare(stream->handle[1]);</div>
<div class="line"><a name="l02116"></a><span class="lineno"> 2116</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02117"></a><span class="lineno"> 2117</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error preparing pcm device (%s): %s."</span>,</div>
<div class="line"><a name="l02118"></a><span class="lineno"> 2118</span>  devices[stream->device[1]].name, snd_strerror(err));</div>
<div class="line"><a name="l02119"></a><span class="lineno"> 2119</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02120"></a><span class="lineno"> 2120</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02121"></a><span class="lineno"> 2121</span>  }</div>
<div class="line"><a name="l02122"></a><span class="lineno"> 2122</span>  }</div>
<div class="line"><a name="l02123"></a><span class="lineno"> 2123</span>  }</div>
<div class="line"><a name="l02124"></a><span class="lineno"> 2124</span>  stream->state = STREAM_RUNNING;</div>
<div class="line"><a name="l02125"></a><span class="lineno"> 2125</span> </div>
<div class="line"><a name="l02126"></a><span class="lineno"> 2126</span>  unlock:</div>
<div class="line"><a name="l02127"></a><span class="lineno"> 2127</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02128"></a><span class="lineno"> 2128</span> }</div>
<div class="line"><a name="l02129"></a><span class="lineno"> 2129</span> </div>
<div class="line"><a name="l02130"></a><span class="lineno"> 2130</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">RtAudio :: stopStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l02131"></a><span class="lineno"> 2131</span> {</div>
<div class="line"><a name="l02132"></a><span class="lineno"> 2132</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l02133"></a><span class="lineno"> 2133</span> </div>
<div class="line"><a name="l02134"></a><span class="lineno"> 2134</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02135"></a><span class="lineno"> 2135</span> </div>
<div class="line"><a name="l02136"></a><span class="lineno"> 2136</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l02137"></a><span class="lineno"> 2137</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l02138"></a><span class="lineno"> 2138</span> </div>
<div class="line"><a name="l02139"></a><span class="lineno"> 2139</span>  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l02140"></a><span class="lineno"> 2140</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02141"></a><span class="lineno"> 2141</span>  err = snd_pcm_drain(stream->handle[0]);</div>
<div class="line"><a name="l02142"></a><span class="lineno"> 2142</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02143"></a><span class="lineno"> 2143</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error draining pcm device (%s): %s."</span>,</div>
<div class="line"><a name="l02144"></a><span class="lineno"> 2144</span>  devices[stream->device[0]].name, snd_strerror(err));</div>
<div class="line"><a name="l02145"></a><span class="lineno"> 2145</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02146"></a><span class="lineno"> 2146</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02147"></a><span class="lineno"> 2147</span>  }</div>
<div class="line"><a name="l02148"></a><span class="lineno"> 2148</span>  }</div>
<div class="line"><a name="l02149"></a><span class="lineno"> 2149</span> </div>
<div class="line"><a name="l02150"></a><span class="lineno"> 2150</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02151"></a><span class="lineno"> 2151</span>  err = snd_pcm_drain(stream->handle[1]);</div>
<div class="line"><a name="l02152"></a><span class="lineno"> 2152</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02153"></a><span class="lineno"> 2153</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error draining pcm device (%s): %s."</span>,</div>
<div class="line"><a name="l02154"></a><span class="lineno"> 2154</span>  devices[stream->device[1]].name, snd_strerror(err));</div>
<div class="line"><a name="l02155"></a><span class="lineno"> 2155</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02156"></a><span class="lineno"> 2156</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02157"></a><span class="lineno"> 2157</span>  }</div>
<div class="line"><a name="l02158"></a><span class="lineno"> 2158</span>  }</div>
<div class="line"><a name="l02159"></a><span class="lineno"> 2159</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l02160"></a><span class="lineno"> 2160</span> </div>
<div class="line"><a name="l02161"></a><span class="lineno"> 2161</span>  unlock:</div>
<div class="line"><a name="l02162"></a><span class="lineno"> 2162</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02163"></a><span class="lineno"> 2163</span> }</div>
<div class="line"><a name="l02164"></a><span class="lineno"> 2164</span> </div>
<div class="line"><a name="l02165"></a><span class="lineno"> 2165</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a72335b2cf99913c017886ce5a818e6a3" title="Stop a stream, discarding any samples remaining in the input/output queue.">RtAudio :: abortStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l02166"></a><span class="lineno"> 2166</span> {</div>
<div class="line"><a name="l02167"></a><span class="lineno"> 2167</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l02168"></a><span class="lineno"> 2168</span> </div>
<div class="line"><a name="l02169"></a><span class="lineno"> 2169</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02170"></a><span class="lineno"> 2170</span> </div>
<div class="line"><a name="l02171"></a><span class="lineno"> 2171</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l02172"></a><span class="lineno"> 2172</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l02173"></a><span class="lineno"> 2173</span> </div>
<div class="line"><a name="l02174"></a><span class="lineno"> 2174</span>  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l02175"></a><span class="lineno"> 2175</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02176"></a><span class="lineno"> 2176</span>  err = snd_pcm_drop(stream->handle[0]);</div>
<div class="line"><a name="l02177"></a><span class="lineno"> 2177</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02178"></a><span class="lineno"> 2178</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error draining pcm device (%s): %s."</span>,</div>
<div class="line"><a name="l02179"></a><span class="lineno"> 2179</span>  devices[stream->device[0]].name, snd_strerror(err));</div>
<div class="line"><a name="l02180"></a><span class="lineno"> 2180</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02181"></a><span class="lineno"> 2181</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02182"></a><span class="lineno"> 2182</span>  }</div>
<div class="line"><a name="l02183"></a><span class="lineno"> 2183</span>  }</div>
<div class="line"><a name="l02184"></a><span class="lineno"> 2184</span> </div>
<div class="line"><a name="l02185"></a><span class="lineno"> 2185</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02186"></a><span class="lineno"> 2186</span>  err = snd_pcm_drop(stream->handle[1]);</div>
<div class="line"><a name="l02187"></a><span class="lineno"> 2187</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02188"></a><span class="lineno"> 2188</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error draining pcm device (%s): %s."</span>,</div>
<div class="line"><a name="l02189"></a><span class="lineno"> 2189</span>  devices[stream->device[1]].name, snd_strerror(err));</div>
<div class="line"><a name="l02190"></a><span class="lineno"> 2190</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02191"></a><span class="lineno"> 2191</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02192"></a><span class="lineno"> 2192</span>  }</div>
<div class="line"><a name="l02193"></a><span class="lineno"> 2193</span>  }</div>
<div class="line"><a name="l02194"></a><span class="lineno"> 2194</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l02195"></a><span class="lineno"> 2195</span> </div>
<div class="line"><a name="l02196"></a><span class="lineno"> 2196</span>  unlock:</div>
<div class="line"><a name="l02197"></a><span class="lineno"> 2197</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02198"></a><span class="lineno"> 2198</span> }</div>
<div class="line"><a name="l02199"></a><span class="lineno"> 2199</span> </div>
<div class="line"><a name="l02200"></a><span class="lineno"> 2200</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#ab7e0a7652c1c90c0463ccbff3b794f2f" title="Queries a stream to determine whether a call to the tickStream() method will block.">RtAudio :: streamWillBlock</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l02201"></a><span class="lineno"> 2201</span> {</div>
<div class="line"><a name="l02202"></a><span class="lineno"> 2202</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l02203"></a><span class="lineno"> 2203</span> </div>
<div class="line"><a name="l02204"></a><span class="lineno"> 2204</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02205"></a><span class="lineno"> 2205</span> </div>
<div class="line"><a name="l02206"></a><span class="lineno"> 2206</span>  <span class="keywordtype">int</span> err = 0, frames = 0;</div>
<div class="line"><a name="l02207"></a><span class="lineno"> 2207</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l02208"></a><span class="lineno"> 2208</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l02209"></a><span class="lineno"> 2209</span> </div>
<div class="line"><a name="l02210"></a><span class="lineno"> 2210</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02211"></a><span class="lineno"> 2211</span>  err = snd_pcm_avail_update(stream->handle[0]);</div>
<div class="line"><a name="l02212"></a><span class="lineno"> 2212</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02213"></a><span class="lineno"> 2213</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error getting available frames for device (%s): %s."</span>,</div>
<div class="line"><a name="l02214"></a><span class="lineno"> 2214</span>  devices[stream->device[0]].name, snd_strerror(err));</div>
<div class="line"><a name="l02215"></a><span class="lineno"> 2215</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02216"></a><span class="lineno"> 2216</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02217"></a><span class="lineno"> 2217</span>  }</div>
<div class="line"><a name="l02218"></a><span class="lineno"> 2218</span>  }</div>
<div class="line"><a name="l02219"></a><span class="lineno"> 2219</span> </div>
<div class="line"><a name="l02220"></a><span class="lineno"> 2220</span>  frames = err;</div>
<div class="line"><a name="l02221"></a><span class="lineno"> 2221</span> </div>
<div class="line"><a name="l02222"></a><span class="lineno"> 2222</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02223"></a><span class="lineno"> 2223</span>  err = snd_pcm_avail_update(stream->handle[1]);</div>
<div class="line"><a name="l02224"></a><span class="lineno"> 2224</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02225"></a><span class="lineno"> 2225</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error getting available frames for device (%s): %s."</span>,</div>
<div class="line"><a name="l02226"></a><span class="lineno"> 2226</span>  devices[stream->device[1]].name, snd_strerror(err));</div>
<div class="line"><a name="l02227"></a><span class="lineno"> 2227</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02228"></a><span class="lineno"> 2228</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02229"></a><span class="lineno"> 2229</span>  }</div>
<div class="line"><a name="l02230"></a><span class="lineno"> 2230</span>  <span class="keywordflow">if</span> (frames > err) frames = err;</div>
<div class="line"><a name="l02231"></a><span class="lineno"> 2231</span>  }</div>
<div class="line"><a name="l02232"></a><span class="lineno"> 2232</span> </div>
<div class="line"><a name="l02233"></a><span class="lineno"> 2233</span>  frames = stream->bufferSize - frames;</div>
<div class="line"><a name="l02234"></a><span class="lineno"> 2234</span>  <span class="keywordflow">if</span> (frames < 0) frames = 0;</div>
<div class="line"><a name="l02235"></a><span class="lineno"> 2235</span> </div>
<div class="line"><a name="l02236"></a><span class="lineno"> 2236</span>  unlock:</div>
<div class="line"><a name="l02237"></a><span class="lineno"> 2237</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02238"></a><span class="lineno"> 2238</span>  <span class="keywordflow">return</span> frames;</div>
<div class="line"><a name="l02239"></a><span class="lineno"> 2239</span> }</div>
<div class="line"><a name="l02240"></a><span class="lineno"> 2240</span> </div>
<div class="line"><a name="l02241"></a><span class="lineno"> 2241</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a2ba2bb7bf1995b0d754ec96b10bda324" title="Public method used to trigger processing of input/output data for a stream.">RtAudio :: tickStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l02242"></a><span class="lineno"> 2242</span> {</div>
<div class="line"><a name="l02243"></a><span class="lineno"> 2243</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l02244"></a><span class="lineno"> 2244</span> </div>
<div class="line"><a name="l02245"></a><span class="lineno"> 2245</span>  <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a> = 0;</div>
<div class="line"><a name="l02246"></a><span class="lineno"> 2246</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED) {</div>
<div class="line"><a name="l02247"></a><span class="lineno"> 2247</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) usleep(50000); <span class="comment">// sleep 50 milliseconds</span></div>
<div class="line"><a name="l02248"></a><span class="lineno"> 2248</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02249"></a><span class="lineno"> 2249</span>  }</div>
<div class="line"><a name="l02250"></a><span class="lineno"> 2250</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l02251"></a><span class="lineno"> 2251</span>  <a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a> callback = (<a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a>) stream->callbackInfo.callback;</div>
<div class="line"><a name="l02252"></a><span class="lineno"> 2252</span>  stopStream = callback(stream->userBuffer, stream->bufferSize, stream->callbackInfo.userData);</div>
<div class="line"><a name="l02253"></a><span class="lineno"> 2253</span>  }</div>
<div class="line"><a name="l02254"></a><span class="lineno"> 2254</span> </div>
<div class="line"><a name="l02255"></a><span class="lineno"> 2255</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02256"></a><span class="lineno"> 2256</span> </div>
<div class="line"><a name="l02257"></a><span class="lineno"> 2257</span>  <span class="comment">// The state might change while waiting on a mutex.</span></div>
<div class="line"><a name="l02258"></a><span class="lineno"> 2258</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l02259"></a><span class="lineno"> 2259</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l02260"></a><span class="lineno"> 2260</span> </div>
<div class="line"><a name="l02261"></a><span class="lineno"> 2261</span>  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l02262"></a><span class="lineno"> 2262</span>  <span class="keywordtype">char</span> *buffer;</div>
<div class="line"><a name="l02263"></a><span class="lineno"> 2263</span>  <span class="keywordtype">int</span> channels;</div>
<div class="line"><a name="l02264"></a><span class="lineno"> 2264</span>  <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RTAUDIO_FORMAT</a> format;</div>
<div class="line"><a name="l02265"></a><span class="lineno"> 2265</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02266"></a><span class="lineno"> 2266</span> </div>
<div class="line"><a name="l02267"></a><span class="lineno"> 2267</span>  <span class="comment">// Setup parameters and do buffer conversion if necessary.</span></div>
<div class="line"><a name="l02268"></a><span class="lineno"> 2268</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[0]) {</div>
<div class="line"><a name="l02269"></a><span class="lineno"> 2269</span>  convertStreamBuffer(stream, OUTPUT);</div>
<div class="line"><a name="l02270"></a><span class="lineno"> 2270</span>  buffer = stream->deviceBuffer;</div>
<div class="line"><a name="l02271"></a><span class="lineno"> 2271</span>  channels = stream->nDeviceChannels[0];</div>
<div class="line"><a name="l02272"></a><span class="lineno"> 2272</span>  format = stream->deviceFormat[0];</div>
<div class="line"><a name="l02273"></a><span class="lineno"> 2273</span>  }</div>
<div class="line"><a name="l02274"></a><span class="lineno"> 2274</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02275"></a><span class="lineno"> 2275</span>  buffer = stream->userBuffer;</div>
<div class="line"><a name="l02276"></a><span class="lineno"> 2276</span>  channels = stream->nUserChannels[0];</div>
<div class="line"><a name="l02277"></a><span class="lineno"> 2277</span>  format = stream->userFormat;</div>
<div class="line"><a name="l02278"></a><span class="lineno"> 2278</span>  }</div>
<div class="line"><a name="l02279"></a><span class="lineno"> 2279</span> </div>
<div class="line"><a name="l02280"></a><span class="lineno"> 2280</span>  <span class="comment">// Do byte swapping if necessary.</span></div>
<div class="line"><a name="l02281"></a><span class="lineno"> 2281</span>  <span class="keywordflow">if</span> (stream->doByteSwap[0])</div>
<div class="line"><a name="l02282"></a><span class="lineno"> 2282</span>  byteSwapBuffer(buffer, stream->bufferSize * channels, format);</div>
<div class="line"><a name="l02283"></a><span class="lineno"> 2283</span> </div>
<div class="line"><a name="l02284"></a><span class="lineno"> 2284</span>  <span class="comment">// Write samples to device in interleaved/non-interleaved format.</span></div>
<div class="line"><a name="l02285"></a><span class="lineno"> 2285</span>  <span class="keywordflow">if</span> (stream->deInterleave[0]) {</div>
<div class="line"><a name="l02286"></a><span class="lineno"> 2286</span>  <span class="keywordtype">void</span> *bufs[channels];</div>
<div class="line"><a name="l02287"></a><span class="lineno"> 2287</span>  <span class="keywordtype">size_t</span> offset = stream->bufferSize * formatBytes(format);</div>
<div class="line"><a name="l02288"></a><span class="lineno"> 2288</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<channels; i++)</div>
<div class="line"><a name="l02289"></a><span class="lineno"> 2289</span>  bufs[i] = (<span class="keywordtype">void</span> *) (buffer + (i * offset));</div>
<div class="line"><a name="l02290"></a><span class="lineno"> 2290</span>  err = snd_pcm_writen(stream->handle[0], bufs, stream->bufferSize);</div>
<div class="line"><a name="l02291"></a><span class="lineno"> 2291</span>  }</div>
<div class="line"><a name="l02292"></a><span class="lineno"> 2292</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l02293"></a><span class="lineno"> 2293</span>  err = snd_pcm_writei(stream->handle[0], buffer, stream->bufferSize);</div>
<div class="line"><a name="l02294"></a><span class="lineno"> 2294</span> </div>
<div class="line"><a name="l02295"></a><span class="lineno"> 2295</span>  <span class="keywordflow">if</span> (err < stream->bufferSize) {</div>
<div class="line"><a name="l02296"></a><span class="lineno"> 2296</span>  <span class="comment">// Either an error or underrun occured.</span></div>
<div class="line"><a name="l02297"></a><span class="lineno"> 2297</span>  <span class="keywordflow">if</span> (err == -EPIPE) {</div>
<div class="line"><a name="l02298"></a><span class="lineno"> 2298</span>  snd_pcm_state_t state = snd_pcm_state(stream->handle[0]);</div>
<div class="line"><a name="l02299"></a><span class="lineno"> 2299</span>  <span class="keywordflow">if</span> (state == SND_PCM_STATE_XRUN) {</div>
<div class="line"><a name="l02300"></a><span class="lineno"> 2300</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA underrun detected."</span>);</div>
<div class="line"><a name="l02301"></a><span class="lineno"> 2301</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l02302"></a><span class="lineno"> 2302</span>  err = snd_pcm_prepare(stream->handle[0]);</div>
<div class="line"><a name="l02303"></a><span class="lineno"> 2303</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02304"></a><span class="lineno"> 2304</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error preparing handle after underrun: %s."</span>,</div>
<div class="line"><a name="l02305"></a><span class="lineno"> 2305</span>  snd_strerror(err));</div>
<div class="line"><a name="l02306"></a><span class="lineno"> 2306</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02307"></a><span class="lineno"> 2307</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02308"></a><span class="lineno"> 2308</span>  }</div>
<div class="line"><a name="l02309"></a><span class="lineno"> 2309</span>  }</div>
<div class="line"><a name="l02310"></a><span class="lineno"> 2310</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02311"></a><span class="lineno"> 2311</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error, current state is %s."</span>,</div>
<div class="line"><a name="l02312"></a><span class="lineno"> 2312</span>  snd_pcm_state_name(state));</div>
<div class="line"><a name="l02313"></a><span class="lineno"> 2313</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02314"></a><span class="lineno"> 2314</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02315"></a><span class="lineno"> 2315</span>  }</div>
<div class="line"><a name="l02316"></a><span class="lineno"> 2316</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l02317"></a><span class="lineno"> 2317</span>  }</div>
<div class="line"><a name="l02318"></a><span class="lineno"> 2318</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02319"></a><span class="lineno"> 2319</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA audio write error for device (%s): %s."</span>,</div>
<div class="line"><a name="l02320"></a><span class="lineno"> 2320</span>  devices[stream->device[0]].name, snd_strerror(err));</div>
<div class="line"><a name="l02321"></a><span class="lineno"> 2321</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02322"></a><span class="lineno"> 2322</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02323"></a><span class="lineno"> 2323</span>  }</div>
<div class="line"><a name="l02324"></a><span class="lineno"> 2324</span>  }</div>
<div class="line"><a name="l02325"></a><span class="lineno"> 2325</span>  }</div>
<div class="line"><a name="l02326"></a><span class="lineno"> 2326</span> </div>
<div class="line"><a name="l02327"></a><span class="lineno"> 2327</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l02328"></a><span class="lineno"> 2328</span> </div>
<div class="line"><a name="l02329"></a><span class="lineno"> 2329</span>  <span class="comment">// Setup parameters.</span></div>
<div class="line"><a name="l02330"></a><span class="lineno"> 2330</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1]) {</div>
<div class="line"><a name="l02331"></a><span class="lineno"> 2331</span>  buffer = stream->deviceBuffer;</div>
<div class="line"><a name="l02332"></a><span class="lineno"> 2332</span>  channels = stream->nDeviceChannels[1];</div>
<div class="line"><a name="l02333"></a><span class="lineno"> 2333</span>  format = stream->deviceFormat[1];</div>
<div class="line"><a name="l02334"></a><span class="lineno"> 2334</span>  }</div>
<div class="line"><a name="l02335"></a><span class="lineno"> 2335</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02336"></a><span class="lineno"> 2336</span>  buffer = stream->userBuffer;</div>
<div class="line"><a name="l02337"></a><span class="lineno"> 2337</span>  channels = stream->nUserChannels[1];</div>
<div class="line"><a name="l02338"></a><span class="lineno"> 2338</span>  format = stream->userFormat;</div>
<div class="line"><a name="l02339"></a><span class="lineno"> 2339</span>  }</div>
<div class="line"><a name="l02340"></a><span class="lineno"> 2340</span> </div>
<div class="line"><a name="l02341"></a><span class="lineno"> 2341</span>  <span class="comment">// Read samples from device in interleaved/non-interleaved format.</span></div>
<div class="line"><a name="l02342"></a><span class="lineno"> 2342</span>  <span class="keywordflow">if</span> (stream->deInterleave[1]) {</div>
<div class="line"><a name="l02343"></a><span class="lineno"> 2343</span>  <span class="keywordtype">void</span> *bufs[channels];</div>
<div class="line"><a name="l02344"></a><span class="lineno"> 2344</span>  <span class="keywordtype">size_t</span> offset = stream->bufferSize * formatBytes(format);</div>
<div class="line"><a name="l02345"></a><span class="lineno"> 2345</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<channels; i++)</div>
<div class="line"><a name="l02346"></a><span class="lineno"> 2346</span>  bufs[i] = (<span class="keywordtype">void</span> *) (buffer + (i * offset));</div>
<div class="line"><a name="l02347"></a><span class="lineno"> 2347</span>  err = snd_pcm_readn(stream->handle[1], bufs, stream->bufferSize);</div>
<div class="line"><a name="l02348"></a><span class="lineno"> 2348</span>  }</div>
<div class="line"><a name="l02349"></a><span class="lineno"> 2349</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l02350"></a><span class="lineno"> 2350</span>  err = snd_pcm_readi(stream->handle[1], buffer, stream->bufferSize);</div>
<div class="line"><a name="l02351"></a><span class="lineno"> 2351</span> </div>
<div class="line"><a name="l02352"></a><span class="lineno"> 2352</span>  <span class="keywordflow">if</span> (err < stream->bufferSize) {</div>
<div class="line"><a name="l02353"></a><span class="lineno"> 2353</span>  <span class="comment">// Either an error or underrun occured.</span></div>
<div class="line"><a name="l02354"></a><span class="lineno"> 2354</span>  <span class="keywordflow">if</span> (err == -EPIPE) {</div>
<div class="line"><a name="l02355"></a><span class="lineno"> 2355</span>  snd_pcm_state_t state = snd_pcm_state(stream->handle[1]);</div>
<div class="line"><a name="l02356"></a><span class="lineno"> 2356</span>  <span class="keywordflow">if</span> (state == SND_PCM_STATE_XRUN) {</div>
<div class="line"><a name="l02357"></a><span class="lineno"> 2357</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA overrun detected."</span>);</div>
<div class="line"><a name="l02358"></a><span class="lineno"> 2358</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l02359"></a><span class="lineno"> 2359</span>  err = snd_pcm_prepare(stream->handle[1]);</div>
<div class="line"><a name="l02360"></a><span class="lineno"> 2360</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l02361"></a><span class="lineno"> 2361</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error preparing handle after overrun: %s."</span>,</div>
<div class="line"><a name="l02362"></a><span class="lineno"> 2362</span>  snd_strerror(err));</div>
<div class="line"><a name="l02363"></a><span class="lineno"> 2363</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02364"></a><span class="lineno"> 2364</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02365"></a><span class="lineno"> 2365</span>  }</div>
<div class="line"><a name="l02366"></a><span class="lineno"> 2366</span>  }</div>
<div class="line"><a name="l02367"></a><span class="lineno"> 2367</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02368"></a><span class="lineno"> 2368</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error, current state is %s."</span>,</div>
<div class="line"><a name="l02369"></a><span class="lineno"> 2369</span>  snd_pcm_state_name(state));</div>
<div class="line"><a name="l02370"></a><span class="lineno"> 2370</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02371"></a><span class="lineno"> 2371</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02372"></a><span class="lineno"> 2372</span>  }</div>
<div class="line"><a name="l02373"></a><span class="lineno"> 2373</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l02374"></a><span class="lineno"> 2374</span>  }</div>
<div class="line"><a name="l02375"></a><span class="lineno"> 2375</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02376"></a><span class="lineno"> 2376</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA audio read error for device (%s): %s."</span>,</div>
<div class="line"><a name="l02377"></a><span class="lineno"> 2377</span>  devices[stream->device[1]].name, snd_strerror(err));</div>
<div class="line"><a name="l02378"></a><span class="lineno"> 2378</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02379"></a><span class="lineno"> 2379</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l02380"></a><span class="lineno"> 2380</span>  }</div>
<div class="line"><a name="l02381"></a><span class="lineno"> 2381</span>  }</div>
<div class="line"><a name="l02382"></a><span class="lineno"> 2382</span> </div>
<div class="line"><a name="l02383"></a><span class="lineno"> 2383</span>  <span class="comment">// Do byte swapping if necessary.</span></div>
<div class="line"><a name="l02384"></a><span class="lineno"> 2384</span>  <span class="keywordflow">if</span> (stream->doByteSwap[1])</div>
<div class="line"><a name="l02385"></a><span class="lineno"> 2385</span>  byteSwapBuffer(buffer, stream->bufferSize * channels, format);</div>
<div class="line"><a name="l02386"></a><span class="lineno"> 2386</span> </div>
<div class="line"><a name="l02387"></a><span class="lineno"> 2387</span>  <span class="comment">// Do buffer conversion if necessary.</span></div>
<div class="line"><a name="l02388"></a><span class="lineno"> 2388</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1])</div>
<div class="line"><a name="l02389"></a><span class="lineno"> 2389</span>  convertStreamBuffer(stream, INPUT);</div>
<div class="line"><a name="l02390"></a><span class="lineno"> 2390</span>  }</div>
<div class="line"><a name="l02391"></a><span class="lineno"> 2391</span> </div>
<div class="line"><a name="l02392"></a><span class="lineno"> 2392</span>  unlock:</div>
<div class="line"><a name="l02393"></a><span class="lineno"> 2393</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l02394"></a><span class="lineno"> 2394</span> </div>
<div class="line"><a name="l02395"></a><span class="lineno"> 2395</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback && stopStream)</div>
<div class="line"><a name="l02396"></a><span class="lineno"> 2396</span>  this-><a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>(streamId);</div>
<div class="line"><a name="l02397"></a><span class="lineno"> 2397</span> }</div>
<div class="line"><a name="l02398"></a><span class="lineno"> 2398</span> </div>
<div class="line"><a name="l02399"></a><span class="lineno"> 2399</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">void</span> *callbackHandler(<span class="keywordtype">void</span> *ptr)</div>
<div class="line"><a name="l02400"></a><span class="lineno"> 2400</span> {</div>
<div class="line"><a name="l02401"></a><span class="lineno"> 2401</span>  <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *info = (<a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *) ptr;</div>
<div class="line"><a name="l02402"></a><span class="lineno"> 2402</span>  <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *<span class="keywordtype">object</span> = (<a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *) info-><a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a>;</div>
<div class="line"><a name="l02403"></a><span class="lineno"> 2403</span>  <span class="keywordtype">int</span> stream = info-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a>;</div>
<div class="line"><a name="l02404"></a><span class="lineno"> 2404</span>  <span class="keywordtype">bool</span> *usingCallback = &info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a>;</div>
<div class="line"><a name="l02405"></a><span class="lineno"> 2405</span> </div>
<div class="line"><a name="l02406"></a><span class="lineno"> 2406</span>  while ( *usingCallback ) {</div>
<div class="line"><a name="l02407"></a><span class="lineno"> 2407</span>  pthread_testcancel();</div>
<div class="line"><a name="l02408"></a><span class="lineno"> 2408</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l02409"></a><span class="lineno"> 2409</span>  <span class="keywordtype">object</span>->tickStream(stream);</div>
<div class="line"><a name="l02410"></a><span class="lineno"> 2410</span>  }</div>
<div class="line"><a name="l02411"></a><span class="lineno"> 2411</span>  <span class="keywordflow">catch</span> (<a class="code" href="classRtError.html" title="Exception handling class for RtAudio.">RtError</a> &exception) {</div>
<div class="line"><a name="l02412"></a><span class="lineno"> 2412</span>  fprintf(stderr, <span class="stringliteral">"\nRtAudio: Callback thread error (%s) ... closing thread.\n\n"</span>,</div>
<div class="line"><a name="l02413"></a><span class="lineno"> 2413</span>  exception.<a class="code" href="classRtError.html#aeb19bdd498bb37c935b1dfbc41195114" title="Returns the "thrown" error message string.">getMessage</a>());</div>
<div class="line"><a name="l02414"></a><span class="lineno"> 2414</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l02415"></a><span class="lineno"> 2415</span>  }</div>
<div class="line"><a name="l02416"></a><span class="lineno"> 2416</span>  }</div>
<div class="line"><a name="l02417"></a><span class="lineno"> 2417</span> </div>
<div class="line"><a name="l02418"></a><span class="lineno"> 2418</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l02419"></a><span class="lineno"> 2419</span> }</div>
<div class="line"><a name="l02420"></a><span class="lineno"> 2420</span> </div>
<div class="line"><a name="l02421"></a><span class="lineno"> 2421</span> <span class="comment">//******************** End of __LINUX_ALSA__ *********************//</span></div>
<div class="line"><a name="l02422"></a><span class="lineno"> 2422</span> </div>
<div class="line"><a name="l02423"></a><span class="lineno"> 2423</span> <span class="preprocessor">#elif defined(__LINUX_OSS__)</span></div>
<div class="line"><a name="l02424"></a><span class="lineno"> 2424</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l02425"></a><span class="lineno"> 2425</span> <span class="preprocessor">#include <sys/stat.h></span></div>
<div class="line"><a name="l02426"></a><span class="lineno"> 2426</span> <span class="preprocessor">#include <sys/types.h></span></div>
<div class="line"><a name="l02427"></a><span class="lineno"> 2427</span> <span class="preprocessor">#include <sys/ioctl.h></span></div>
<div class="line"><a name="l02428"></a><span class="lineno"> 2428</span> <span class="preprocessor">#include <unistd.h></span></div>
<div class="line"><a name="l02429"></a><span class="lineno"> 2429</span> <span class="preprocessor">#include <fcntl.h></span></div>
<div class="line"><a name="l02430"></a><span class="lineno"> 2430</span> <span class="preprocessor">#include <sys/soundcard.h></span></div>
<div class="line"><a name="l02431"></a><span class="lineno"> 2431</span> <span class="preprocessor">#include <errno.h></span></div>
<div class="line"><a name="l02432"></a><span class="lineno"> 2432</span> <span class="preprocessor">#include <math.h></span></div>
<div class="line"><a name="l02433"></a><span class="lineno"> 2433</span> </div>
<div class="line"><a name="l02434"></a><span class="lineno"> 2434</span> <span class="preprocessor">#define DAC_NAME "/dev/dsp"</span></div>
<div class="line"><a name="l02435"></a><span class="lineno"> 2435</span> <span class="preprocessor"></span><span class="preprocessor">#define MAX_DEVICES 16</span></div>
<div class="line"><a name="l02436"></a><span class="lineno"> 2436</span> <span class="preprocessor"></span><span class="preprocessor">#define MAX_CHANNELS 16</span></div>
<div class="line"><a name="l02437"></a><span class="lineno"> 2437</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l02438"></a><span class="lineno"> 2438</span> <span class="keywordtype">void</span> RtAudio :: initialize(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l02439"></a><span class="lineno"> 2439</span> {</div>
<div class="line"><a name="l02440"></a><span class="lineno"> 2440</span>  <span class="comment">// Count cards and devices</span></div>
<div class="line"><a name="l02441"></a><span class="lineno"> 2441</span>  nDevices = 0;</div>
<div class="line"><a name="l02442"></a><span class="lineno"> 2442</span> </div>
<div class="line"><a name="l02443"></a><span class="lineno"> 2443</span>  <span class="comment">// We check /dev/dsp before probing devices. /dev/dsp is supposed to</span></div>
<div class="line"><a name="l02444"></a><span class="lineno"> 2444</span>  <span class="comment">// be a link to the "default" audio device, of the form /dev/dsp0,</span></div>
<div class="line"><a name="l02445"></a><span class="lineno"> 2445</span>  <span class="comment">// /dev/dsp1, etc... However, I've seen many cases where /dev/dsp was a</span></div>
<div class="line"><a name="l02446"></a><span class="lineno"> 2446</span>  <span class="comment">// real device, so we need to check for that. Also, sometimes the</span></div>
<div class="line"><a name="l02447"></a><span class="lineno"> 2447</span>  <span class="comment">// link is to /dev/dspx and other times just dspx. I'm not sure how</span></div>
<div class="line"><a name="l02448"></a><span class="lineno"> 2448</span>  <span class="comment">// the latter works, but it does.</span></div>
<div class="line"><a name="l02449"></a><span class="lineno"> 2449</span>  <span class="keywordtype">char</span> device_name[16];</div>
<div class="line"><a name="l02450"></a><span class="lineno"> 2450</span>  <span class="keyword">struct </span>stat dspstat;</div>
<div class="line"><a name="l02451"></a><span class="lineno"> 2451</span>  <span class="keywordtype">int</span> dsplink = -1;</div>
<div class="line"><a name="l02452"></a><span class="lineno"> 2452</span>  <span class="keywordtype">int</span> i = 0;</div>
<div class="line"><a name="l02453"></a><span class="lineno"> 2453</span>  <span class="keywordflow">if</span> (lstat(DAC_NAME, &dspstat) == 0) {</div>
<div class="line"><a name="l02454"></a><span class="lineno"> 2454</span>  <span class="keywordflow">if</span> (S_ISLNK(dspstat.st_mode)) {</div>
<div class="line"><a name="l02455"></a><span class="lineno"> 2455</span>  i = readlink(DAC_NAME, device_name, <span class="keyword">sizeof</span>(device_name));</div>
<div class="line"><a name="l02456"></a><span class="lineno"> 2456</span>  <span class="keywordflow">if</span> (i > 0) {</div>
<div class="line"><a name="l02457"></a><span class="lineno"> 2457</span>  device_name[i] = <span class="charliteral">'\0'</span>;</div>
<div class="line"><a name="l02458"></a><span class="lineno"> 2458</span>  <span class="keywordflow">if</span> (i > 8) { <span class="comment">// check for "/dev/dspx"</span></div>
<div class="line"><a name="l02459"></a><span class="lineno"> 2459</span>  <span class="keywordflow">if</span> (!strncmp(DAC_NAME, device_name, 8))</div>
<div class="line"><a name="l02460"></a><span class="lineno"> 2460</span>  dsplink = atoi(&device_name[8]);</div>
<div class="line"><a name="l02461"></a><span class="lineno"> 2461</span>  }</div>
<div class="line"><a name="l02462"></a><span class="lineno"> 2462</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (i > 3) { <span class="comment">// check for "dspx"</span></div>
<div class="line"><a name="l02463"></a><span class="lineno"> 2463</span>  <span class="keywordflow">if</span> (!strncmp(<span class="stringliteral">"dsp"</span>, device_name, 3))</div>
<div class="line"><a name="l02464"></a><span class="lineno"> 2464</span>  dsplink = atoi(&device_name[3]);</div>
<div class="line"><a name="l02465"></a><span class="lineno"> 2465</span>  }</div>
<div class="line"><a name="l02466"></a><span class="lineno"> 2466</span>  }</div>
<div class="line"><a name="l02467"></a><span class="lineno"> 2467</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02468"></a><span class="lineno"> 2468</span>  sprintf(message, <span class="stringliteral">"RtAudio: cannot read value of symbolic link %s."</span>, DAC_NAME);</div>
<div class="line"><a name="l02469"></a><span class="lineno"> 2469</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a8947d0a2e2a84ecf3646271844e06a6b">RtError::SYSTEM_ERROR</a>);</div>
<div class="line"><a name="l02470"></a><span class="lineno"> 2470</span>  }</div>
<div class="line"><a name="l02471"></a><span class="lineno"> 2471</span>  }</div>
<div class="line"><a name="l02472"></a><span class="lineno"> 2472</span>  }</div>
<div class="line"><a name="l02473"></a><span class="lineno"> 2473</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02474"></a><span class="lineno"> 2474</span>  sprintf(message, <span class="stringliteral">"RtAudio: cannot stat %s."</span>, DAC_NAME);</div>
<div class="line"><a name="l02475"></a><span class="lineno"> 2475</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a8947d0a2e2a84ecf3646271844e06a6b">RtError::SYSTEM_ERROR</a>);</div>
<div class="line"><a name="l02476"></a><span class="lineno"> 2476</span>  }</div>
<div class="line"><a name="l02477"></a><span class="lineno"> 2477</span> </div>
<div class="line"><a name="l02478"></a><span class="lineno"> 2478</span>  <span class="comment">// The OSS API doesn't provide a routine for determining the number</span></div>
<div class="line"><a name="l02479"></a><span class="lineno"> 2479</span>  <span class="comment">// of devices. Thus, we'll just pursue a brute force method. The</span></div>
<div class="line"><a name="l02480"></a><span class="lineno"> 2480</span>  <span class="comment">// idea is to start with /dev/dsp(0) and continue with higher device</span></div>
<div class="line"><a name="l02481"></a><span class="lineno"> 2481</span>  <span class="comment">// numbers until we reach MAX_DSP_DEVICES. This should tell us how</span></div>
<div class="line"><a name="l02482"></a><span class="lineno"> 2482</span>  <span class="comment">// many devices we have ... it is not a fullproof scheme, but hopefully</span></div>
<div class="line"><a name="l02483"></a><span class="lineno"> 2483</span>  <span class="comment">// it will work most of the time.</span></div>
<div class="line"><a name="l02484"></a><span class="lineno"> 2484</span> </div>
<div class="line"><a name="l02485"></a><span class="lineno"> 2485</span>  <span class="keywordtype">int</span> fd = 0;</div>
<div class="line"><a name="l02486"></a><span class="lineno"> 2486</span>  <span class="keywordtype">char</span> names[MAX_DEVICES][16];</div>
<div class="line"><a name="l02487"></a><span class="lineno"> 2487</span>  <span class="keywordflow">for</span> (i=-1; i<MAX_DEVICES; i++) {</div>
<div class="line"><a name="l02488"></a><span class="lineno"> 2488</span> </div>
<div class="line"><a name="l02489"></a><span class="lineno"> 2489</span>  <span class="comment">// Probe /dev/dsp first, since it is supposed to be the default device.</span></div>
<div class="line"><a name="l02490"></a><span class="lineno"> 2490</span>  <span class="keywordflow">if</span> (i == -1)</div>
<div class="line"><a name="l02491"></a><span class="lineno"> 2491</span>  sprintf(device_name, <span class="stringliteral">"%s"</span>, DAC_NAME);</div>
<div class="line"><a name="l02492"></a><span class="lineno"> 2492</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (i == dsplink)</div>
<div class="line"><a name="l02493"></a><span class="lineno"> 2493</span>  <span class="keywordflow">continue</span>; <span class="comment">// We've aready probed this device via /dev/dsp link ... try next device.</span></div>
<div class="line"><a name="l02494"></a><span class="lineno"> 2494</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l02495"></a><span class="lineno"> 2495</span>  sprintf(device_name, <span class="stringliteral">"%s%d"</span>, DAC_NAME, i);</div>
<div class="line"><a name="l02496"></a><span class="lineno"> 2496</span> </div>
<div class="line"><a name="l02497"></a><span class="lineno"> 2497</span>  <span class="comment">// First try to open the device for playback, then record mode.</span></div>
<div class="line"><a name="l02498"></a><span class="lineno"> 2498</span>  fd = open(device_name, O_WRONLY | O_NONBLOCK);</div>
<div class="line"><a name="l02499"></a><span class="lineno"> 2499</span>  <span class="keywordflow">if</span> (fd == -1) {</div>
<div class="line"><a name="l02500"></a><span class="lineno"> 2500</span>  <span class="comment">// Open device for playback failed ... either busy or doesn't exist.</span></div>
<div class="line"><a name="l02501"></a><span class="lineno"> 2501</span>  <span class="keywordflow">if</span> (errno != EBUSY && errno != EAGAIN) {</div>
<div class="line"><a name="l02502"></a><span class="lineno"> 2502</span>  <span class="comment">// Try to open for capture</span></div>
<div class="line"><a name="l02503"></a><span class="lineno"> 2503</span>  fd = open(device_name, O_RDONLY | O_NONBLOCK);</div>
<div class="line"><a name="l02504"></a><span class="lineno"> 2504</span>  <span class="keywordflow">if</span> (fd == -1) {</div>
<div class="line"><a name="l02505"></a><span class="lineno"> 2505</span>  <span class="comment">// Open device for record failed.</span></div>
<div class="line"><a name="l02506"></a><span class="lineno"> 2506</span>  <span class="keywordflow">if</span> (errno != EBUSY && errno != EAGAIN)</div>
<div class="line"><a name="l02507"></a><span class="lineno"> 2507</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l02508"></a><span class="lineno"> 2508</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02509"></a><span class="lineno"> 2509</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS record device (%s) is busy."</span>, device_name);</div>
<div class="line"><a name="l02510"></a><span class="lineno"> 2510</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l02511"></a><span class="lineno"> 2511</span>  <span class="comment">// still count it for now</span></div>
<div class="line"><a name="l02512"></a><span class="lineno"> 2512</span>  }</div>
<div class="line"><a name="l02513"></a><span class="lineno"> 2513</span>  }</div>
<div class="line"><a name="l02514"></a><span class="lineno"> 2514</span>  }</div>
<div class="line"><a name="l02515"></a><span class="lineno"> 2515</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02516"></a><span class="lineno"> 2516</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS playback device (%s) is busy."</span>, device_name);</div>
<div class="line"><a name="l02517"></a><span class="lineno"> 2517</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l02518"></a><span class="lineno"> 2518</span>  <span class="comment">// still count it for now</span></div>
<div class="line"><a name="l02519"></a><span class="lineno"> 2519</span>  }</div>
<div class="line"><a name="l02520"></a><span class="lineno"> 2520</span>  }</div>
<div class="line"><a name="l02521"></a><span class="lineno"> 2521</span> </div>
<div class="line"><a name="l02522"></a><span class="lineno"> 2522</span>  <span class="keywordflow">if</span> (fd >= 0) close(fd);</div>
<div class="line"><a name="l02523"></a><span class="lineno"> 2523</span>  strncpy(names[nDevices], device_name, 16);</div>
<div class="line"><a name="l02524"></a><span class="lineno"> 2524</span>  nDevices++;</div>
<div class="line"><a name="l02525"></a><span class="lineno"> 2525</span>  }</div>
<div class="line"><a name="l02526"></a><span class="lineno"> 2526</span> </div>
<div class="line"><a name="l02527"></a><span class="lineno"> 2527</span>  <span class="keywordflow">if</span> (nDevices == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02528"></a><span class="lineno"> 2528</span> </div>
<div class="line"><a name="l02529"></a><span class="lineno"> 2529</span>  <span class="comment">// Allocate the RTAUDIO_DEVICE structures.</span></div>
<div class="line"><a name="l02530"></a><span class="lineno"> 2530</span>  devices = (RTAUDIO_DEVICE *) calloc(nDevices, <span class="keyword">sizeof</span>(RTAUDIO_DEVICE));</div>
<div class="line"><a name="l02531"></a><span class="lineno"> 2531</span>  <span class="keywordflow">if</span> (devices == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l02532"></a><span class="lineno"> 2532</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l02533"></a><span class="lineno"> 2533</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ab4f813e5a36905c89d4081a59497432e">RtError::MEMORY_ERROR</a>);</div>
<div class="line"><a name="l02534"></a><span class="lineno"> 2534</span>  }</div>
<div class="line"><a name="l02535"></a><span class="lineno"> 2535</span> </div>
<div class="line"><a name="l02536"></a><span class="lineno"> 2536</span>  <span class="comment">// Write device ascii identifiers to device control structure and then probe capabilities.</span></div>
<div class="line"><a name="l02537"></a><span class="lineno"> 2537</span>  <span class="keywordflow">for</span> (i=0; i<nDevices; i++) {</div>
<div class="line"><a name="l02538"></a><span class="lineno"> 2538</span>  strncpy(devices[i].name, names[i], 16);</div>
<div class="line"><a name="l02539"></a><span class="lineno"> 2539</span>  <span class="comment">//probeDeviceInfo(&devices[i]);</span></div>
<div class="line"><a name="l02540"></a><span class="lineno"> 2540</span>  }</div>
<div class="line"><a name="l02541"></a><span class="lineno"> 2541</span> </div>
<div class="line"><a name="l02542"></a><span class="lineno"> 2542</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02543"></a><span class="lineno"> 2543</span> }</div>
<div class="line"><a name="l02544"></a><span class="lineno"> 2544</span> </div>
<div class="line"><a name="l02545"></a><span class="lineno"> 2545</span> <span class="keywordtype">int</span> RtAudio :: getDefaultInputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l02546"></a><span class="lineno"> 2546</span> {</div>
<div class="line"><a name="l02547"></a><span class="lineno"> 2547</span>  <span class="comment">// No OSS API functions for default devices.</span></div>
<div class="line"><a name="l02548"></a><span class="lineno"> 2548</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l02549"></a><span class="lineno"> 2549</span> }</div>
<div class="line"><a name="l02550"></a><span class="lineno"> 2550</span> </div>
<div class="line"><a name="l02551"></a><span class="lineno"> 2551</span> <span class="keywordtype">int</span> RtAudio :: getDefaultOutputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l02552"></a><span class="lineno"> 2552</span> {</div>
<div class="line"><a name="l02553"></a><span class="lineno"> 2553</span>  <span class="comment">// No OSS API functions for default devices.</span></div>
<div class="line"><a name="l02554"></a><span class="lineno"> 2554</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l02555"></a><span class="lineno"> 2555</span> }</div>
<div class="line"><a name="l02556"></a><span class="lineno"> 2556</span> </div>
<div class="line"><a name="l02557"></a><span class="lineno"> 2557</span> <span class="keywordtype">void</span> RtAudio :: probeDeviceInfo(RTAUDIO_DEVICE *info)</div>
<div class="line"><a name="l02558"></a><span class="lineno"> 2558</span> {</div>
<div class="line"><a name="l02559"></a><span class="lineno"> 2559</span>  <span class="keywordtype">int</span> i, fd, channels, mask;</div>
<div class="line"><a name="l02560"></a><span class="lineno"> 2560</span> </div>
<div class="line"><a name="l02561"></a><span class="lineno"> 2561</span>  <span class="comment">// The OSS API doesn't provide a means for probing the capabilities</span></div>
<div class="line"><a name="l02562"></a><span class="lineno"> 2562</span>  <span class="comment">// of devices. Thus, we'll just pursue a brute force method.</span></div>
<div class="line"><a name="l02563"></a><span class="lineno"> 2563</span> </div>
<div class="line"><a name="l02564"></a><span class="lineno"> 2564</span>  <span class="comment">// First try for playback</span></div>
<div class="line"><a name="l02565"></a><span class="lineno"> 2565</span>  fd = open(info->name, O_WRONLY | O_NONBLOCK);</div>
<div class="line"><a name="l02566"></a><span class="lineno"> 2566</span>  <span class="keywordflow">if</span> (fd == -1) {</div>
<div class="line"><a name="l02567"></a><span class="lineno"> 2567</span>  <span class="comment">// Open device failed ... either busy or doesn't exist</span></div>
<div class="line"><a name="l02568"></a><span class="lineno"> 2568</span>  <span class="keywordflow">if</span> (errno == EBUSY || errno == EAGAIN)</div>
<div class="line"><a name="l02569"></a><span class="lineno"> 2569</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS playback device (%s) is busy and cannot be probed."</span>,</div>
<div class="line"><a name="l02570"></a><span class="lineno"> 2570</span>  info->name);</div>
<div class="line"><a name="l02571"></a><span class="lineno"> 2571</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l02572"></a><span class="lineno"> 2572</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS playback device (%s) open error."</span>, info->name);</div>
<div class="line"><a name="l02573"></a><span class="lineno"> 2573</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l02574"></a><span class="lineno"> 2574</span>  <span class="keywordflow">goto</span> capture_probe;</div>
<div class="line"><a name="l02575"></a><span class="lineno"> 2575</span>  }</div>
<div class="line"><a name="l02576"></a><span class="lineno"> 2576</span> </div>
<div class="line"><a name="l02577"></a><span class="lineno"> 2577</span>  <span class="comment">// We have an open device ... see how many channels it can handle</span></div>
<div class="line"><a name="l02578"></a><span class="lineno"> 2578</span>  <span class="keywordflow">for</span> (i=MAX_CHANNELS; i>0; i--) {</div>
<div class="line"><a name="l02579"></a><span class="lineno"> 2579</span>  channels = i;</div>
<div class="line"><a name="l02580"></a><span class="lineno"> 2580</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) == -1) {</div>
<div class="line"><a name="l02581"></a><span class="lineno"> 2581</span>  <span class="comment">// This would normally indicate some sort of hardware error, but under ALSA's</span></div>
<div class="line"><a name="l02582"></a><span class="lineno"> 2582</span>  <span class="comment">// OSS emulation, it sometimes indicates an invalid channel value. Further,</span></div>
<div class="line"><a name="l02583"></a><span class="lineno"> 2583</span>  <span class="comment">// the returned channel value is not changed. So, we'll ignore the possible</span></div>
<div class="line"><a name="l02584"></a><span class="lineno"> 2584</span>  <span class="comment">// hardware error.</span></div>
<div class="line"><a name="l02585"></a><span class="lineno"> 2585</span>  <span class="keywordflow">continue</span>; <span class="comment">// try next channel number</span></div>
<div class="line"><a name="l02586"></a><span class="lineno"> 2586</span>  }</div>
<div class="line"><a name="l02587"></a><span class="lineno"> 2587</span>  <span class="comment">// Check to see whether the device supports the requested number of channels</span></div>
<div class="line"><a name="l02588"></a><span class="lineno"> 2588</span>  <span class="keywordflow">if</span> (channels != i ) <span class="keywordflow">continue</span>; <span class="comment">// try next channel number</span></div>
<div class="line"><a name="l02589"></a><span class="lineno"> 2589</span>  <span class="comment">// If here, we found the largest working channel value</span></div>
<div class="line"><a name="l02590"></a><span class="lineno"> 2590</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l02591"></a><span class="lineno"> 2591</span>  }</div>
<div class="line"><a name="l02592"></a><span class="lineno"> 2592</span>  info->maxOutputChannels = i;</div>
<div class="line"><a name="l02593"></a><span class="lineno"> 2593</span> </div>
<div class="line"><a name="l02594"></a><span class="lineno"> 2594</span>  <span class="comment">// Now find the minimum number of channels it can handle</span></div>
<div class="line"><a name="l02595"></a><span class="lineno"> 2595</span>  <span class="keywordflow">for</span> (i=1; i<=info->maxOutputChannels; i++) {</div>
<div class="line"><a name="l02596"></a><span class="lineno"> 2596</span>  channels = i;</div>
<div class="line"><a name="l02597"></a><span class="lineno"> 2597</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) == -1 || channels != i)</div>
<div class="line"><a name="l02598"></a><span class="lineno"> 2598</span>  <span class="keywordflow">continue</span>; <span class="comment">// try next channel number</span></div>
<div class="line"><a name="l02599"></a><span class="lineno"> 2599</span>  <span class="comment">// If here, we found the smallest working channel value</span></div>
<div class="line"><a name="l02600"></a><span class="lineno"> 2600</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l02601"></a><span class="lineno"> 2601</span>  }</div>
<div class="line"><a name="l02602"></a><span class="lineno"> 2602</span>  info->minOutputChannels = i;</div>
<div class="line"><a name="l02603"></a><span class="lineno"> 2603</span>  close(fd);</div>
<div class="line"><a name="l02604"></a><span class="lineno"> 2604</span> </div>
<div class="line"><a name="l02605"></a><span class="lineno"> 2605</span>  capture_probe:</div>
<div class="line"><a name="l02606"></a><span class="lineno"> 2606</span>  <span class="comment">// Now try for capture</span></div>
<div class="line"><a name="l02607"></a><span class="lineno"> 2607</span>  fd = open(info->name, O_RDONLY | O_NONBLOCK);</div>
<div class="line"><a name="l02608"></a><span class="lineno"> 2608</span>  <span class="keywordflow">if</span> (fd == -1) {</div>
<div class="line"><a name="l02609"></a><span class="lineno"> 2609</span>  <span class="comment">// Open device for capture failed ... either busy or doesn't exist</span></div>
<div class="line"><a name="l02610"></a><span class="lineno"> 2610</span>  <span class="keywordflow">if</span> (errno == EBUSY || errno == EAGAIN)</div>
<div class="line"><a name="l02611"></a><span class="lineno"> 2611</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS capture device (%s) is busy and cannot be probed."</span>,</div>
<div class="line"><a name="l02612"></a><span class="lineno"> 2612</span>  info->name);</div>
<div class="line"><a name="l02613"></a><span class="lineno"> 2613</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l02614"></a><span class="lineno"> 2614</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS capture device (%s) open error."</span>, info->name);</div>
<div class="line"><a name="l02615"></a><span class="lineno"> 2615</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l02616"></a><span class="lineno"> 2616</span>  <span class="keywordflow">if</span> (info->maxOutputChannels == 0)</div>
<div class="line"><a name="l02617"></a><span class="lineno"> 2617</span>  <span class="comment">// didn't open for playback either ... device invalid</span></div>
<div class="line"><a name="l02618"></a><span class="lineno"> 2618</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02619"></a><span class="lineno"> 2619</span>  <span class="keywordflow">goto</span> probe_parameters;</div>
<div class="line"><a name="l02620"></a><span class="lineno"> 2620</span>  }</div>
<div class="line"><a name="l02621"></a><span class="lineno"> 2621</span> </div>
<div class="line"><a name="l02622"></a><span class="lineno"> 2622</span>  <span class="comment">// We have the device open for capture ... see how many channels it can handle</span></div>
<div class="line"><a name="l02623"></a><span class="lineno"> 2623</span>  <span class="keywordflow">for</span> (i=MAX_CHANNELS; i>0; i--) {</div>
<div class="line"><a name="l02624"></a><span class="lineno"> 2624</span>  channels = i;</div>
<div class="line"><a name="l02625"></a><span class="lineno"> 2625</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) == -1 || channels != i) {</div>
<div class="line"><a name="l02626"></a><span class="lineno"> 2626</span>  <span class="keywordflow">continue</span>; <span class="comment">// as above</span></div>
<div class="line"><a name="l02627"></a><span class="lineno"> 2627</span>  }</div>
<div class="line"><a name="l02628"></a><span class="lineno"> 2628</span>  <span class="comment">// If here, we found a working channel value</span></div>
<div class="line"><a name="l02629"></a><span class="lineno"> 2629</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l02630"></a><span class="lineno"> 2630</span>  }</div>
<div class="line"><a name="l02631"></a><span class="lineno"> 2631</span>  info->maxInputChannels = i;</div>
<div class="line"><a name="l02632"></a><span class="lineno"> 2632</span> </div>
<div class="line"><a name="l02633"></a><span class="lineno"> 2633</span>  <span class="comment">// Now find the minimum number of channels it can handle</span></div>
<div class="line"><a name="l02634"></a><span class="lineno"> 2634</span>  <span class="keywordflow">for</span> (i=1; i<=info->maxInputChannels; i++) {</div>
<div class="line"><a name="l02635"></a><span class="lineno"> 2635</span>  channels = i;</div>
<div class="line"><a name="l02636"></a><span class="lineno"> 2636</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) == -1 || channels != i)</div>
<div class="line"><a name="l02637"></a><span class="lineno"> 2637</span>  <span class="keywordflow">continue</span>; <span class="comment">// try next channel number</span></div>
<div class="line"><a name="l02638"></a><span class="lineno"> 2638</span>  <span class="comment">// If here, we found the smallest working channel value</span></div>
<div class="line"><a name="l02639"></a><span class="lineno"> 2639</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l02640"></a><span class="lineno"> 2640</span>  }</div>
<div class="line"><a name="l02641"></a><span class="lineno"> 2641</span>  info->minInputChannels = i;</div>
<div class="line"><a name="l02642"></a><span class="lineno"> 2642</span>  close(fd);</div>
<div class="line"><a name="l02643"></a><span class="lineno"> 2643</span> </div>
<div class="line"><a name="l02644"></a><span class="lineno"> 2644</span>  <span class="keywordflow">if</span> (info->maxOutputChannels == 0 && info->maxInputChannels == 0) {</div>
<div class="line"><a name="l02645"></a><span class="lineno"> 2645</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) reports zero channels for input and output."</span>,</div>
<div class="line"><a name="l02646"></a><span class="lineno"> 2646</span>  info->name);</div>
<div class="line"><a name="l02647"></a><span class="lineno"> 2647</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l02648"></a><span class="lineno"> 2648</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02649"></a><span class="lineno"> 2649</span>  }</div>
<div class="line"><a name="l02650"></a><span class="lineno"> 2650</span> </div>
<div class="line"><a name="l02651"></a><span class="lineno"> 2651</span>  <span class="comment">// If device opens for both playback and capture, we determine the channels.</span></div>
<div class="line"><a name="l02652"></a><span class="lineno"> 2652</span>  <span class="keywordflow">if</span> (info->maxOutputChannels == 0 || info->maxInputChannels == 0)</div>
<div class="line"><a name="l02653"></a><span class="lineno"> 2653</span>  <span class="keywordflow">goto</span> probe_parameters;</div>
<div class="line"><a name="l02654"></a><span class="lineno"> 2654</span> </div>
<div class="line"><a name="l02655"></a><span class="lineno"> 2655</span>  fd = open(info->name, O_RDWR | O_NONBLOCK);</div>
<div class="line"><a name="l02656"></a><span class="lineno"> 2656</span>  <span class="keywordflow">if</span> (fd == -1)</div>
<div class="line"><a name="l02657"></a><span class="lineno"> 2657</span>  <span class="keywordflow">goto</span> probe_parameters;</div>
<div class="line"><a name="l02658"></a><span class="lineno"> 2658</span> </div>
<div class="line"><a name="l02659"></a><span class="lineno"> 2659</span>  ioctl(fd, SNDCTL_DSP_SETDUPLEX, 0);</div>
<div class="line"><a name="l02660"></a><span class="lineno"> 2660</span>  ioctl(fd, SNDCTL_DSP_GETCAPS, &mask);</div>
<div class="line"><a name="l02661"></a><span class="lineno"> 2661</span>  <span class="keywordflow">if</span> (mask & DSP_CAP_DUPLEX) {</div>
<div class="line"><a name="l02662"></a><span class="lineno"> 2662</span>  info->hasDuplexSupport = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02663"></a><span class="lineno"> 2663</span>  <span class="comment">// We have the device open for duplex ... see how many channels it can handle</span></div>
<div class="line"><a name="l02664"></a><span class="lineno"> 2664</span>  <span class="keywordflow">for</span> (i=MAX_CHANNELS; i>0; i--) {</div>
<div class="line"><a name="l02665"></a><span class="lineno"> 2665</span>  channels = i;</div>
<div class="line"><a name="l02666"></a><span class="lineno"> 2666</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) == -1 || channels != i)</div>
<div class="line"><a name="l02667"></a><span class="lineno"> 2667</span>  <span class="keywordflow">continue</span>; <span class="comment">// as above</span></div>
<div class="line"><a name="l02668"></a><span class="lineno"> 2668</span>  <span class="comment">// If here, we found a working channel value</span></div>
<div class="line"><a name="l02669"></a><span class="lineno"> 2669</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l02670"></a><span class="lineno"> 2670</span>  }</div>
<div class="line"><a name="l02671"></a><span class="lineno"> 2671</span>  info->maxDuplexChannels = i;</div>
<div class="line"><a name="l02672"></a><span class="lineno"> 2672</span> </div>
<div class="line"><a name="l02673"></a><span class="lineno"> 2673</span>  <span class="comment">// Now find the minimum number of channels it can handle</span></div>
<div class="line"><a name="l02674"></a><span class="lineno"> 2674</span>  <span class="keywordflow">for</span> (i=1; i<=info->maxDuplexChannels; i++) {</div>
<div class="line"><a name="l02675"></a><span class="lineno"> 2675</span>  channels = i;</div>
<div class="line"><a name="l02676"></a><span class="lineno"> 2676</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) == -1 || channels != i)</div>
<div class="line"><a name="l02677"></a><span class="lineno"> 2677</span>  <span class="keywordflow">continue</span>; <span class="comment">// try next channel number</span></div>
<div class="line"><a name="l02678"></a><span class="lineno"> 2678</span>  <span class="comment">// If here, we found the smallest working channel value</span></div>
<div class="line"><a name="l02679"></a><span class="lineno"> 2679</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l02680"></a><span class="lineno"> 2680</span>  }</div>
<div class="line"><a name="l02681"></a><span class="lineno"> 2681</span>  info->minDuplexChannels = i;</div>
<div class="line"><a name="l02682"></a><span class="lineno"> 2682</span>  }</div>
<div class="line"><a name="l02683"></a><span class="lineno"> 2683</span>  close(fd);</div>
<div class="line"><a name="l02684"></a><span class="lineno"> 2684</span> </div>
<div class="line"><a name="l02685"></a><span class="lineno"> 2685</span>  probe_parameters:</div>
<div class="line"><a name="l02686"></a><span class="lineno"> 2686</span>  <span class="comment">// At this point, we need to figure out the supported data formats</span></div>
<div class="line"><a name="l02687"></a><span class="lineno"> 2687</span>  <span class="comment">// and sample rates. We'll proceed by openning the device in the</span></div>
<div class="line"><a name="l02688"></a><span class="lineno"> 2688</span>  <span class="comment">// direction with the maximum number of channels, or playback if</span></div>
<div class="line"><a name="l02689"></a><span class="lineno"> 2689</span>  <span class="comment">// they are equal. This might limit our sample rate options, but so</span></div>
<div class="line"><a name="l02690"></a><span class="lineno"> 2690</span>  <span class="comment">// be it.</span></div>
<div class="line"><a name="l02691"></a><span class="lineno"> 2691</span> </div>
<div class="line"><a name="l02692"></a><span class="lineno"> 2692</span>  <span class="keywordflow">if</span> (info->maxOutputChannels >= info->maxInputChannels) {</div>
<div class="line"><a name="l02693"></a><span class="lineno"> 2693</span>  fd = open(info->name, O_WRONLY | O_NONBLOCK);</div>
<div class="line"><a name="l02694"></a><span class="lineno"> 2694</span>  channels = info->maxOutputChannels;</div>
<div class="line"><a name="l02695"></a><span class="lineno"> 2695</span>  }</div>
<div class="line"><a name="l02696"></a><span class="lineno"> 2696</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02697"></a><span class="lineno"> 2697</span>  fd = open(info->name, O_RDONLY | O_NONBLOCK);</div>
<div class="line"><a name="l02698"></a><span class="lineno"> 2698</span>  channels = info->maxInputChannels;</div>
<div class="line"><a name="l02699"></a><span class="lineno"> 2699</span>  }</div>
<div class="line"><a name="l02700"></a><span class="lineno"> 2700</span> </div>
<div class="line"><a name="l02701"></a><span class="lineno"> 2701</span>  <span class="keywordflow">if</span> (fd == -1) {</div>
<div class="line"><a name="l02702"></a><span class="lineno"> 2702</span>  <span class="comment">// We've got some sort of conflict ... abort</span></div>
<div class="line"><a name="l02703"></a><span class="lineno"> 2703</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) won't reopen during probe."</span>,</div>
<div class="line"><a name="l02704"></a><span class="lineno"> 2704</span>  info->name);</div>
<div class="line"><a name="l02705"></a><span class="lineno"> 2705</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l02706"></a><span class="lineno"> 2706</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02707"></a><span class="lineno"> 2707</span>  }</div>
<div class="line"><a name="l02708"></a><span class="lineno"> 2708</span> </div>
<div class="line"><a name="l02709"></a><span class="lineno"> 2709</span>  <span class="comment">// We have an open device ... set to maximum channels.</span></div>
<div class="line"><a name="l02710"></a><span class="lineno"> 2710</span>  i = channels;</div>
<div class="line"><a name="l02711"></a><span class="lineno"> 2711</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) == -1 || channels != i) {</div>
<div class="line"><a name="l02712"></a><span class="lineno"> 2712</span>  <span class="comment">// We've got some sort of conflict ... abort</span></div>
<div class="line"><a name="l02713"></a><span class="lineno"> 2713</span>  close(fd);</div>
<div class="line"><a name="l02714"></a><span class="lineno"> 2714</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) won't revert to previous channel setting."</span>,</div>
<div class="line"><a name="l02715"></a><span class="lineno"> 2715</span>  info->name);</div>
<div class="line"><a name="l02716"></a><span class="lineno"> 2716</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l02717"></a><span class="lineno"> 2717</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02718"></a><span class="lineno"> 2718</span>  }</div>
<div class="line"><a name="l02719"></a><span class="lineno"> 2719</span> </div>
<div class="line"><a name="l02720"></a><span class="lineno"> 2720</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_GETFMTS, &mask) == -1) {</div>
<div class="line"><a name="l02721"></a><span class="lineno"> 2721</span>  close(fd);</div>
<div class="line"><a name="l02722"></a><span class="lineno"> 2722</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) can't get supported audio formats."</span>,</div>
<div class="line"><a name="l02723"></a><span class="lineno"> 2723</span>  info->name);</div>
<div class="line"><a name="l02724"></a><span class="lineno"> 2724</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l02725"></a><span class="lineno"> 2725</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02726"></a><span class="lineno"> 2726</span>  }</div>
<div class="line"><a name="l02727"></a><span class="lineno"> 2727</span> </div>
<div class="line"><a name="l02728"></a><span class="lineno"> 2728</span>  <span class="comment">// Probe the supported data formats ... we don't care about endian-ness just yet.</span></div>
<div class="line"><a name="l02729"></a><span class="lineno"> 2729</span>  <span class="keywordtype">int</span> format;</div>
<div class="line"><a name="l02730"></a><span class="lineno"> 2730</span>  info->nativeFormats = 0;</div>
<div class="line"><a name="l02731"></a><span class="lineno"> 2731</span> <span class="preprocessor">#if defined (AFMT_S32_BE)</span></div>
<div class="line"><a name="l02732"></a><span class="lineno"> 2732</span> <span class="preprocessor"></span> <span class="comment">// This format does not seem to be in the 2.4 kernel version of OSS soundcard.h</span></div>
<div class="line"><a name="l02733"></a><span class="lineno"> 2733</span>  <span class="keywordflow">if</span> (mask & AFMT_S32_BE) {</div>
<div class="line"><a name="l02734"></a><span class="lineno"> 2734</span>  format = AFMT_S32_BE;</div>
<div class="line"><a name="l02735"></a><span class="lineno"> 2735</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l02736"></a><span class="lineno"> 2736</span>  }</div>
<div class="line"><a name="l02737"></a><span class="lineno"> 2737</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l02738"></a><span class="lineno"> 2738</span> <span class="preprocessor"></span><span class="preprocessor">#if defined (AFMT_S32_LE)</span></div>
<div class="line"><a name="l02739"></a><span class="lineno"> 2739</span> <span class="preprocessor"></span> <span class="comment">/* This format is not in the 2.4.4 kernel version of OSS soundcard.h */</span></div>
<div class="line"><a name="l02740"></a><span class="lineno"> 2740</span>  <span class="keywordflow">if</span> (mask & AFMT_S32_LE) {</div>
<div class="line"><a name="l02741"></a><span class="lineno"> 2741</span>  format = AFMT_S32_LE;</div>
<div class="line"><a name="l02742"></a><span class="lineno"> 2742</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l02743"></a><span class="lineno"> 2743</span>  }</div>
<div class="line"><a name="l02744"></a><span class="lineno"> 2744</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l02745"></a><span class="lineno"> 2745</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (mask & AFMT_S8) {</div>
<div class="line"><a name="l02746"></a><span class="lineno"> 2746</span>  format = AFMT_S8;</div>
<div class="line"><a name="l02747"></a><span class="lineno"> 2747</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l02748"></a><span class="lineno"> 2748</span>  }</div>
<div class="line"><a name="l02749"></a><span class="lineno"> 2749</span>  <span class="keywordflow">if</span> (mask & AFMT_S16_BE) {</div>
<div class="line"><a name="l02750"></a><span class="lineno"> 2750</span>  format = AFMT_S16_BE;</div>
<div class="line"><a name="l02751"></a><span class="lineno"> 2751</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l02752"></a><span class="lineno"> 2752</span>  }</div>
<div class="line"><a name="l02753"></a><span class="lineno"> 2753</span>  <span class="keywordflow">if</span> (mask & AFMT_S16_LE) {</div>
<div class="line"><a name="l02754"></a><span class="lineno"> 2754</span>  format = AFMT_S16_LE;</div>
<div class="line"><a name="l02755"></a><span class="lineno"> 2755</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l02756"></a><span class="lineno"> 2756</span>  }</div>
<div class="line"><a name="l02757"></a><span class="lineno"> 2757</span> </div>
<div class="line"><a name="l02758"></a><span class="lineno"> 2758</span>  <span class="comment">// Check that we have at least one supported format</span></div>
<div class="line"><a name="l02759"></a><span class="lineno"> 2759</span>  <span class="keywordflow">if</span> (info->nativeFormats == 0) {</div>
<div class="line"><a name="l02760"></a><span class="lineno"> 2760</span>  close(fd);</div>
<div class="line"><a name="l02761"></a><span class="lineno"> 2761</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) data format not supported by RtAudio."</span>,</div>
<div class="line"><a name="l02762"></a><span class="lineno"> 2762</span>  info->name);</div>
<div class="line"><a name="l02763"></a><span class="lineno"> 2763</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l02764"></a><span class="lineno"> 2764</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02765"></a><span class="lineno"> 2765</span>  }</div>
<div class="line"><a name="l02766"></a><span class="lineno"> 2766</span> </div>
<div class="line"><a name="l02767"></a><span class="lineno"> 2767</span>  <span class="comment">// Set the format</span></div>
<div class="line"><a name="l02768"></a><span class="lineno"> 2768</span>  i = format;</div>
<div class="line"><a name="l02769"></a><span class="lineno"> 2769</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_SETFMT, &format) == -1 || format != i) {</div>
<div class="line"><a name="l02770"></a><span class="lineno"> 2770</span>  close(fd);</div>
<div class="line"><a name="l02771"></a><span class="lineno"> 2771</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) error setting data format."</span>,</div>
<div class="line"><a name="l02772"></a><span class="lineno"> 2772</span>  info->name);</div>
<div class="line"><a name="l02773"></a><span class="lineno"> 2773</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l02774"></a><span class="lineno"> 2774</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02775"></a><span class="lineno"> 2775</span>  }</div>
<div class="line"><a name="l02776"></a><span class="lineno"> 2776</span> </div>
<div class="line"><a name="l02777"></a><span class="lineno"> 2777</span>  <span class="comment">// Probe the supported sample rates ... first get lower limit</span></div>
<div class="line"><a name="l02778"></a><span class="lineno"> 2778</span>  <span class="keywordtype">int</span> speed = 1;</div>
<div class="line"><a name="l02779"></a><span class="lineno"> 2779</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_SPEED, &speed) == -1) {</div>
<div class="line"><a name="l02780"></a><span class="lineno"> 2780</span>  <span class="comment">// If we get here, we're probably using an ALSA driver with OSS-emulation,</span></div>
<div class="line"><a name="l02781"></a><span class="lineno"> 2781</span>  <span class="comment">// which doesn't conform to the OSS specification. In this case,</span></div>
<div class="line"><a name="l02782"></a><span class="lineno"> 2782</span>  <span class="comment">// we'll probe our predefined list of sample rates for working values.</span></div>
<div class="line"><a name="l02783"></a><span class="lineno"> 2783</span>  info->nSampleRates = 0;</div>
<div class="line"><a name="l02784"></a><span class="lineno"> 2784</span>  <span class="keywordflow">for</span> (i=0; i<<a class="code" href="classRtAudio.html#a7405def6b99ff5d2c0f95d885514d61ca30fa0221e6d99b2845bdff75d1894289">MAX_SAMPLE_RATES</a>; i++) {</div>
<div class="line"><a name="l02785"></a><span class="lineno"> 2785</span>  speed = SAMPLE_RATES[i];</div>
<div class="line"><a name="l02786"></a><span class="lineno"> 2786</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_SPEED, &speed) != -1) {</div>
<div class="line"><a name="l02787"></a><span class="lineno"> 2787</span>  info->sampleRates[info->nSampleRates] = SAMPLE_RATES[i];</div>
<div class="line"><a name="l02788"></a><span class="lineno"> 2788</span>  info->nSampleRates++;</div>
<div class="line"><a name="l02789"></a><span class="lineno"> 2789</span>  }</div>
<div class="line"><a name="l02790"></a><span class="lineno"> 2790</span>  }</div>
<div class="line"><a name="l02791"></a><span class="lineno"> 2791</span>  <span class="keywordflow">if</span> (info->nSampleRates == 0) {</div>
<div class="line"><a name="l02792"></a><span class="lineno"> 2792</span>  close(fd);</div>
<div class="line"><a name="l02793"></a><span class="lineno"> 2793</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02794"></a><span class="lineno"> 2794</span>  }</div>
<div class="line"><a name="l02795"></a><span class="lineno"> 2795</span>  <span class="keywordflow">goto</span> finished;</div>
<div class="line"><a name="l02796"></a><span class="lineno"> 2796</span>  }</div>
<div class="line"><a name="l02797"></a><span class="lineno"> 2797</span>  info->sampleRates[0] = speed;</div>
<div class="line"><a name="l02798"></a><span class="lineno"> 2798</span> </div>
<div class="line"><a name="l02799"></a><span class="lineno"> 2799</span>  <span class="comment">// Now get upper limit</span></div>
<div class="line"><a name="l02800"></a><span class="lineno"> 2800</span>  speed = 1000000;</div>
<div class="line"><a name="l02801"></a><span class="lineno"> 2801</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_SPEED, &speed) == -1) {</div>
<div class="line"><a name="l02802"></a><span class="lineno"> 2802</span>  close(fd);</div>
<div class="line"><a name="l02803"></a><span class="lineno"> 2803</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) error setting sample rate."</span>,</div>
<div class="line"><a name="l02804"></a><span class="lineno"> 2804</span>  info->name);</div>
<div class="line"><a name="l02805"></a><span class="lineno"> 2805</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l02806"></a><span class="lineno"> 2806</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02807"></a><span class="lineno"> 2807</span>  }</div>
<div class="line"><a name="l02808"></a><span class="lineno"> 2808</span>  info->sampleRates[1] = speed;</div>
<div class="line"><a name="l02809"></a><span class="lineno"> 2809</span>  info->nSampleRates = -1;</div>
<div class="line"><a name="l02810"></a><span class="lineno"> 2810</span> </div>
<div class="line"><a name="l02811"></a><span class="lineno"> 2811</span>  finished: <span class="comment">// That's all ... close the device and return</span></div>
<div class="line"><a name="l02812"></a><span class="lineno"> 2812</span>  close(fd);</div>
<div class="line"><a name="l02813"></a><span class="lineno"> 2813</span>  info->probed = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02814"></a><span class="lineno"> 2814</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02815"></a><span class="lineno"> 2815</span> }</div>
<div class="line"><a name="l02816"></a><span class="lineno"> 2816</span> </div>
<div class="line"><a name="l02817"></a><span class="lineno"> 2817</span> <span class="keywordtype">bool</span> RtAudio :: probeDeviceOpen(<span class="keywordtype">int</span> device, RTAUDIO_STREAM *stream,</div>
<div class="line"><a name="l02818"></a><span class="lineno"> 2818</span>  STREAM_MODE mode, <span class="keywordtype">int</span> channels, </div>
<div class="line"><a name="l02819"></a><span class="lineno"> 2819</span>  <span class="keywordtype">int</span> sampleRate, RTAUDIO_FORMAT format,</div>
<div class="line"><a name="l02820"></a><span class="lineno"> 2820</span>  <span class="keywordtype">int</span> *bufferSize, <span class="keywordtype">int</span> numberOfBuffers)</div>
<div class="line"><a name="l02821"></a><span class="lineno"> 2821</span> {</div>
<div class="line"><a name="l02822"></a><span class="lineno"> 2822</span>  <span class="keywordtype">int</span> buffers, buffer_bytes, device_channels, device_format;</div>
<div class="line"><a name="l02823"></a><span class="lineno"> 2823</span>  <span class="keywordtype">int</span> srate, temp, fd;</div>
<div class="line"><a name="l02824"></a><span class="lineno"> 2824</span> </div>
<div class="line"><a name="l02825"></a><span class="lineno"> 2825</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *name = devices[device].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a92049c89bab55e94c17a638e7793f676">name</a>;</div>
<div class="line"><a name="l02826"></a><span class="lineno"> 2826</span> </div>
<div class="line"><a name="l02827"></a><span class="lineno"> 2827</span>  <span class="keywordflow">if</span> (mode == OUTPUT)</div>
<div class="line"><a name="l02828"></a><span class="lineno"> 2828</span>  fd = open(name, O_WRONLY | O_NONBLOCK);</div>
<div class="line"><a name="l02829"></a><span class="lineno"> 2829</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l02830"></a><span class="lineno"> 2830</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT && stream->device[0] == device) {</div>
<div class="line"><a name="l02831"></a><span class="lineno"> 2831</span>  <span class="comment">// We just set the same device for playback ... close and reopen for duplex (OSS only).</span></div>
<div class="line"><a name="l02832"></a><span class="lineno"> 2832</span>  close(stream->handle[0]);</div>
<div class="line"><a name="l02833"></a><span class="lineno"> 2833</span>  stream->handle[0] = 0;</div>
<div class="line"><a name="l02834"></a><span class="lineno"> 2834</span>  <span class="comment">// First check that the number previously set channels is the same.</span></div>
<div class="line"><a name="l02835"></a><span class="lineno"> 2835</span>  <span class="keywordflow">if</span> (stream->nUserChannels[0] != channels) {</div>
<div class="line"><a name="l02836"></a><span class="lineno"> 2836</span>  sprintf(message, <span class="stringliteral">"RtAudio: input/output channels must be equal for OSS duplex device (%s)."</span>, name);</div>
<div class="line"><a name="l02837"></a><span class="lineno"> 2837</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l02838"></a><span class="lineno"> 2838</span>  }</div>
<div class="line"><a name="l02839"></a><span class="lineno"> 2839</span>  fd = open(name, O_RDWR | O_NONBLOCK);</div>
<div class="line"><a name="l02840"></a><span class="lineno"> 2840</span>  }</div>
<div class="line"><a name="l02841"></a><span class="lineno"> 2841</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l02842"></a><span class="lineno"> 2842</span>  fd = open(name, O_RDONLY | O_NONBLOCK);</div>
<div class="line"><a name="l02843"></a><span class="lineno"> 2843</span>  }</div>
<div class="line"><a name="l02844"></a><span class="lineno"> 2844</span> </div>
<div class="line"><a name="l02845"></a><span class="lineno"> 2845</span>  <span class="keywordflow">if</span> (fd == -1) {</div>
<div class="line"><a name="l02846"></a><span class="lineno"> 2846</span>  <span class="keywordflow">if</span> (errno == EBUSY || errno == EAGAIN)</div>
<div class="line"><a name="l02847"></a><span class="lineno"> 2847</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) is busy and cannot be opened."</span>,</div>
<div class="line"><a name="l02848"></a><span class="lineno"> 2848</span>  name);</div>
<div class="line"><a name="l02849"></a><span class="lineno"> 2849</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l02850"></a><span class="lineno"> 2850</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) cannot be opened."</span>, name);</div>
<div class="line"><a name="l02851"></a><span class="lineno"> 2851</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l02852"></a><span class="lineno"> 2852</span>  }</div>
<div class="line"><a name="l02853"></a><span class="lineno"> 2853</span> </div>
<div class="line"><a name="l02854"></a><span class="lineno"> 2854</span>  <span class="comment">// Now reopen in blocking mode.</span></div>
<div class="line"><a name="l02855"></a><span class="lineno"> 2855</span>  close(fd);</div>
<div class="line"><a name="l02856"></a><span class="lineno"> 2856</span>  <span class="keywordflow">if</span> (mode == OUTPUT)</div>
<div class="line"><a name="l02857"></a><span class="lineno"> 2857</span>  fd = open(name, O_WRONLY | O_SYNC);</div>
<div class="line"><a name="l02858"></a><span class="lineno"> 2858</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l02859"></a><span class="lineno"> 2859</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT && stream->device[0] == device)</div>
<div class="line"><a name="l02860"></a><span class="lineno"> 2860</span>  fd = open(name, O_RDWR | O_SYNC);</div>
<div class="line"><a name="l02861"></a><span class="lineno"> 2861</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l02862"></a><span class="lineno"> 2862</span>  fd = open(name, O_RDONLY | O_SYNC);</div>
<div class="line"><a name="l02863"></a><span class="lineno"> 2863</span>  }</div>
<div class="line"><a name="l02864"></a><span class="lineno"> 2864</span> </div>
<div class="line"><a name="l02865"></a><span class="lineno"> 2865</span>  <span class="keywordflow">if</span> (fd == -1) {</div>
<div class="line"><a name="l02866"></a><span class="lineno"> 2866</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) cannot be opened."</span>, name);</div>
<div class="line"><a name="l02867"></a><span class="lineno"> 2867</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l02868"></a><span class="lineno"> 2868</span>  }</div>
<div class="line"><a name="l02869"></a><span class="lineno"> 2869</span> </div>
<div class="line"><a name="l02870"></a><span class="lineno"> 2870</span>  <span class="comment">// Get the sample format mask</span></div>
<div class="line"><a name="l02871"></a><span class="lineno"> 2871</span>  <span class="keywordtype">int</span> mask;</div>
<div class="line"><a name="l02872"></a><span class="lineno"> 2872</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_GETFMTS, &mask) == -1) {</div>
<div class="line"><a name="l02873"></a><span class="lineno"> 2873</span>  close(fd);</div>
<div class="line"><a name="l02874"></a><span class="lineno"> 2874</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) can't get supported audio formats."</span>,</div>
<div class="line"><a name="l02875"></a><span class="lineno"> 2875</span>  name);</div>
<div class="line"><a name="l02876"></a><span class="lineno"> 2876</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l02877"></a><span class="lineno"> 2877</span>  }</div>
<div class="line"><a name="l02878"></a><span class="lineno"> 2878</span> </div>
<div class="line"><a name="l02879"></a><span class="lineno"> 2879</span>  <span class="comment">// Determine how to set the device format.</span></div>
<div class="line"><a name="l02880"></a><span class="lineno"> 2880</span>  stream->userFormat = format;</div>
<div class="line"><a name="l02881"></a><span class="lineno"> 2881</span>  device_format = -1;</div>
<div class="line"><a name="l02882"></a><span class="lineno"> 2882</span>  stream->doByteSwap[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l02883"></a><span class="lineno"> 2883</span>  <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>) {</div>
<div class="line"><a name="l02884"></a><span class="lineno"> 2884</span>  <span class="keywordflow">if</span> (mask & AFMT_S8) {</div>
<div class="line"><a name="l02885"></a><span class="lineno"> 2885</span>  device_format = AFMT_S8;</div>
<div class="line"><a name="l02886"></a><span class="lineno"> 2886</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l02887"></a><span class="lineno"> 2887</span>  }</div>
<div class="line"><a name="l02888"></a><span class="lineno"> 2888</span>  }</div>
<div class="line"><a name="l02889"></a><span class="lineno"> 2889</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l02890"></a><span class="lineno"> 2890</span>  <span class="keywordflow">if</span> (mask & AFMT_S16_NE) {</div>
<div class="line"><a name="l02891"></a><span class="lineno"> 2891</span>  device_format = AFMT_S16_NE;</div>
<div class="line"><a name="l02892"></a><span class="lineno"> 2892</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l02893"></a><span class="lineno"> 2893</span>  }</div>
<div class="line"><a name="l02894"></a><span class="lineno"> 2894</span> <span class="preprocessor">#if BYTE_ORDER == LITTLE_ENDIAN</span></div>
<div class="line"><a name="l02895"></a><span class="lineno"> 2895</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S16_BE) {</div>
<div class="line"><a name="l02896"></a><span class="lineno"> 2896</span>  device_format = AFMT_S16_BE;</div>
<div class="line"><a name="l02897"></a><span class="lineno"> 2897</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l02898"></a><span class="lineno"> 2898</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02899"></a><span class="lineno"> 2899</span>  }</div>
<div class="line"><a name="l02900"></a><span class="lineno"> 2900</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l02901"></a><span class="lineno"> 2901</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S16_LE) {</div>
<div class="line"><a name="l02902"></a><span class="lineno"> 2902</span>  device_format = AFMT_S16_LE;</div>
<div class="line"><a name="l02903"></a><span class="lineno"> 2903</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l02904"></a><span class="lineno"> 2904</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02905"></a><span class="lineno"> 2905</span>  }</div>
<div class="line"><a name="l02906"></a><span class="lineno"> 2906</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l02907"></a><span class="lineno"> 2907</span> <span class="preprocessor"></span> }</div>
<div class="line"><a name="l02908"></a><span class="lineno"> 2908</span> <span class="preprocessor">#if defined (AFMT_S32_NE) && defined (AFMT_S32_LE) && defined (AFMT_S32_BE)</span></div>
<div class="line"><a name="l02909"></a><span class="lineno"> 2909</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>) {</div>
<div class="line"><a name="l02910"></a><span class="lineno"> 2910</span>  <span class="keywordflow">if</span> (mask & AFMT_S32_NE) {</div>
<div class="line"><a name="l02911"></a><span class="lineno"> 2911</span>  device_format = AFMT_S32_NE;</div>
<div class="line"><a name="l02912"></a><span class="lineno"> 2912</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l02913"></a><span class="lineno"> 2913</span>  }</div>
<div class="line"><a name="l02914"></a><span class="lineno"> 2914</span> <span class="preprocessor">#if BYTE_ORDER == LITTLE_ENDIAN</span></div>
<div class="line"><a name="l02915"></a><span class="lineno"> 2915</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S32_BE) {</div>
<div class="line"><a name="l02916"></a><span class="lineno"> 2916</span>  device_format = AFMT_S32_BE;</div>
<div class="line"><a name="l02917"></a><span class="lineno"> 2917</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l02918"></a><span class="lineno"> 2918</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02919"></a><span class="lineno"> 2919</span>  }</div>
<div class="line"><a name="l02920"></a><span class="lineno"> 2920</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l02921"></a><span class="lineno"> 2921</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S32_LE) {</div>
<div class="line"><a name="l02922"></a><span class="lineno"> 2922</span>  device_format = AFMT_S32_LE;</div>
<div class="line"><a name="l02923"></a><span class="lineno"> 2923</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l02924"></a><span class="lineno"> 2924</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02925"></a><span class="lineno"> 2925</span>  }</div>
<div class="line"><a name="l02926"></a><span class="lineno"> 2926</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l02927"></a><span class="lineno"> 2927</span> <span class="preprocessor"></span> }</div>
<div class="line"><a name="l02928"></a><span class="lineno"> 2928</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l02929"></a><span class="lineno"> 2929</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l02930"></a><span class="lineno"> 2930</span>  <span class="keywordflow">if</span> (device_format == -1) {</div>
<div class="line"><a name="l02931"></a><span class="lineno"> 2931</span>  <span class="comment">// The user requested format is not natively supported by the device.</span></div>
<div class="line"><a name="l02932"></a><span class="lineno"> 2932</span>  <span class="keywordflow">if</span> (mask & AFMT_S16_NE) {</div>
<div class="line"><a name="l02933"></a><span class="lineno"> 2933</span>  device_format = AFMT_S16_NE;</div>
<div class="line"><a name="l02934"></a><span class="lineno"> 2934</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l02935"></a><span class="lineno"> 2935</span>  }</div>
<div class="line"><a name="l02936"></a><span class="lineno"> 2936</span> <span class="preprocessor">#if BYTE_ORDER == LITTLE_ENDIAN</span></div>
<div class="line"><a name="l02937"></a><span class="lineno"> 2937</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S16_BE) {</div>
<div class="line"><a name="l02938"></a><span class="lineno"> 2938</span>  device_format = AFMT_S16_BE;</div>
<div class="line"><a name="l02939"></a><span class="lineno"> 2939</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l02940"></a><span class="lineno"> 2940</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02941"></a><span class="lineno"> 2941</span>  }</div>
<div class="line"><a name="l02942"></a><span class="lineno"> 2942</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l02943"></a><span class="lineno"> 2943</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S16_LE) {</div>
<div class="line"><a name="l02944"></a><span class="lineno"> 2944</span>  device_format = AFMT_S16_LE;</div>
<div class="line"><a name="l02945"></a><span class="lineno"> 2945</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l02946"></a><span class="lineno"> 2946</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02947"></a><span class="lineno"> 2947</span>  }</div>
<div class="line"><a name="l02948"></a><span class="lineno"> 2948</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l02949"></a><span class="lineno"> 2949</span> <span class="preprocessor"></span><span class="preprocessor">#if defined (AFMT_S32_NE) && defined (AFMT_S32_LE) && defined (AFMT_S32_BE)</span></div>
<div class="line"><a name="l02950"></a><span class="lineno"> 2950</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S32_NE) {</div>
<div class="line"><a name="l02951"></a><span class="lineno"> 2951</span>  device_format = AFMT_S32_NE;</div>
<div class="line"><a name="l02952"></a><span class="lineno"> 2952</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l02953"></a><span class="lineno"> 2953</span>  }</div>
<div class="line"><a name="l02954"></a><span class="lineno"> 2954</span> <span class="preprocessor">#if BYTE_ORDER == LITTLE_ENDIAN</span></div>
<div class="line"><a name="l02955"></a><span class="lineno"> 2955</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S32_BE) {</div>
<div class="line"><a name="l02956"></a><span class="lineno"> 2956</span>  device_format = AFMT_S32_BE;</div>
<div class="line"><a name="l02957"></a><span class="lineno"> 2957</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l02958"></a><span class="lineno"> 2958</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02959"></a><span class="lineno"> 2959</span>  }</div>
<div class="line"><a name="l02960"></a><span class="lineno"> 2960</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l02961"></a><span class="lineno"> 2961</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S32_LE) {</div>
<div class="line"><a name="l02962"></a><span class="lineno"> 2962</span>  device_format = AFMT_S32_LE;</div>
<div class="line"><a name="l02963"></a><span class="lineno"> 2963</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l02964"></a><span class="lineno"> 2964</span>  stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l02965"></a><span class="lineno"> 2965</span>  }</div>
<div class="line"><a name="l02966"></a><span class="lineno"> 2966</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l02967"></a><span class="lineno"> 2967</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l02968"></a><span class="lineno"> 2968</span> <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mask & AFMT_S8) {</div>
<div class="line"><a name="l02969"></a><span class="lineno"> 2969</span>  device_format = AFMT_S8;</div>
<div class="line"><a name="l02970"></a><span class="lineno"> 2970</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l02971"></a><span class="lineno"> 2971</span>  }</div>
<div class="line"><a name="l02972"></a><span class="lineno"> 2972</span>  }</div>
<div class="line"><a name="l02973"></a><span class="lineno"> 2973</span> </div>
<div class="line"><a name="l02974"></a><span class="lineno"> 2974</span>  <span class="keywordflow">if</span> (stream->deviceFormat[mode] == 0) {</div>
<div class="line"><a name="l02975"></a><span class="lineno"> 2975</span>  <span class="comment">// This really shouldn't happen ...</span></div>
<div class="line"><a name="l02976"></a><span class="lineno"> 2976</span>  close(fd);</div>
<div class="line"><a name="l02977"></a><span class="lineno"> 2977</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS device (%s) data format not supported by RtAudio."</span>,</div>
<div class="line"><a name="l02978"></a><span class="lineno"> 2978</span>  name);</div>
<div class="line"><a name="l02979"></a><span class="lineno"> 2979</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l02980"></a><span class="lineno"> 2980</span>  }</div>
<div class="line"><a name="l02981"></a><span class="lineno"> 2981</span> </div>
<div class="line"><a name="l02982"></a><span class="lineno"> 2982</span>  <span class="comment">// Determine the number of channels for this device. Note that the</span></div>
<div class="line"><a name="l02983"></a><span class="lineno"> 2983</span>  <span class="comment">// channel value requested by the user might be < min_X_Channels.</span></div>
<div class="line"><a name="l02984"></a><span class="lineno"> 2984</span>  stream->nUserChannels[mode] = channels;</div>
<div class="line"><a name="l02985"></a><span class="lineno"> 2985</span>  device_channels = channels;</div>
<div class="line"><a name="l02986"></a><span class="lineno"> 2986</span>  <span class="keywordflow">if</span> (mode == OUTPUT) {</div>
<div class="line"><a name="l02987"></a><span class="lineno"> 2987</span>  <span class="keywordflow">if</span> (channels < devices[device].minOutputChannels)</div>
<div class="line"><a name="l02988"></a><span class="lineno"> 2988</span>  device_channels = devices[device].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a311268e7193acb6f10bb61e931487cd8">minOutputChannels</a>;</div>
<div class="line"><a name="l02989"></a><span class="lineno"> 2989</span>  }</div>
<div class="line"><a name="l02990"></a><span class="lineno"> 2990</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l02991"></a><span class="lineno"> 2991</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT && stream->device[0] == device) {</div>
<div class="line"><a name="l02992"></a><span class="lineno"> 2992</span>  <span class="comment">// We're doing duplex setup here.</span></div>
<div class="line"><a name="l02993"></a><span class="lineno"> 2993</span>  <span class="keywordflow">if</span> (channels < devices[device].minDuplexChannels)</div>
<div class="line"><a name="l02994"></a><span class="lineno"> 2994</span>  device_channels = devices[device].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a4a668afd5230a95981ed62a419648d1d">minDuplexChannels</a>;</div>
<div class="line"><a name="l02995"></a><span class="lineno"> 2995</span>  }</div>
<div class="line"><a name="l02996"></a><span class="lineno"> 2996</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02997"></a><span class="lineno"> 2997</span>  <span class="keywordflow">if</span> (channels < devices[device].minInputChannels)</div>
<div class="line"><a name="l02998"></a><span class="lineno"> 2998</span>  device_channels = devices[device].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#a3cf966b3864c6c2b6c319e51ecf4bd50">minInputChannels</a>;</div>
<div class="line"><a name="l02999"></a><span class="lineno"> 2999</span>  }</div>
<div class="line"><a name="l03000"></a><span class="lineno"> 3000</span>  }</div>
<div class="line"><a name="l03001"></a><span class="lineno"> 3001</span>  stream->nDeviceChannels[mode] = device_channels;</div>
<div class="line"><a name="l03002"></a><span class="lineno"> 3002</span> </div>
<div class="line"><a name="l03003"></a><span class="lineno"> 3003</span>  <span class="comment">// Attempt to set the buffer size. According to OSS, the minimum</span></div>
<div class="line"><a name="l03004"></a><span class="lineno"> 3004</span>  <span class="comment">// number of buffers is two. The supposed minimum buffer size is 16</span></div>
<div class="line"><a name="l03005"></a><span class="lineno"> 3005</span>  <span class="comment">// bytes, so that will be our lower bound. The argument to this</span></div>
<div class="line"><a name="l03006"></a><span class="lineno"> 3006</span>  <span class="comment">// call is in the form 0xMMMMSSSS (hex), where the buffer size (in</span></div>
<div class="line"><a name="l03007"></a><span class="lineno"> 3007</span>  <span class="comment">// bytes) is given as 2^SSSS and the number of buffers as 2^MMMM.</span></div>
<div class="line"><a name="l03008"></a><span class="lineno"> 3008</span>  <span class="comment">// We'll check the actual value used near the end of the setup</span></div>
<div class="line"><a name="l03009"></a><span class="lineno"> 3009</span>  <span class="comment">// procedure.</span></div>
<div class="line"><a name="l03010"></a><span class="lineno"> 3010</span>  buffer_bytes = *bufferSize * formatBytes(stream->deviceFormat[mode]) * device_channels;</div>
<div class="line"><a name="l03011"></a><span class="lineno"> 3011</span>  <span class="keywordflow">if</span> (buffer_bytes < 16) buffer_bytes = 16;</div>
<div class="line"><a name="l03012"></a><span class="lineno"> 3012</span>  buffers = numberOfBuffers;</div>
<div class="line"><a name="l03013"></a><span class="lineno"> 3013</span>  <span class="keywordflow">if</span> (buffers < 2) buffers = 2;</div>
<div class="line"><a name="l03014"></a><span class="lineno"> 3014</span>  temp = ((int) buffers << 16) + (int)(log10((<span class="keywordtype">double</span>)buffer_bytes)/log10(2.0));</div>
<div class="line"><a name="l03015"></a><span class="lineno"> 3015</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_SETFRAGMENT, &temp)) {</div>
<div class="line"><a name="l03016"></a><span class="lineno"> 3016</span>  close(fd);</div>
<div class="line"><a name="l03017"></a><span class="lineno"> 3017</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error setting fragment size for device (%s)."</span>,</div>
<div class="line"><a name="l03018"></a><span class="lineno"> 3018</span>  name);</div>
<div class="line"><a name="l03019"></a><span class="lineno"> 3019</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03020"></a><span class="lineno"> 3020</span>  }</div>
<div class="line"><a name="l03021"></a><span class="lineno"> 3021</span>  stream->nBuffers = buffers;</div>
<div class="line"><a name="l03022"></a><span class="lineno"> 3022</span> </div>
<div class="line"><a name="l03023"></a><span class="lineno"> 3023</span>  <span class="comment">// Set the data format.</span></div>
<div class="line"><a name="l03024"></a><span class="lineno"> 3024</span>  temp = device_format;</div>
<div class="line"><a name="l03025"></a><span class="lineno"> 3025</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_SETFMT, &device_format) == -1 || device_format != temp) {</div>
<div class="line"><a name="l03026"></a><span class="lineno"> 3026</span>  close(fd);</div>
<div class="line"><a name="l03027"></a><span class="lineno"> 3027</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error setting data format for device (%s)."</span>,</div>
<div class="line"><a name="l03028"></a><span class="lineno"> 3028</span>  name);</div>
<div class="line"><a name="l03029"></a><span class="lineno"> 3029</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03030"></a><span class="lineno"> 3030</span>  }</div>
<div class="line"><a name="l03031"></a><span class="lineno"> 3031</span> </div>
<div class="line"><a name="l03032"></a><span class="lineno"> 3032</span>  <span class="comment">// Set the number of channels.</span></div>
<div class="line"><a name="l03033"></a><span class="lineno"> 3033</span>  temp = device_channels;</div>
<div class="line"><a name="l03034"></a><span class="lineno"> 3034</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_CHANNELS, &device_channels) == -1 || device_channels != temp) {</div>
<div class="line"><a name="l03035"></a><span class="lineno"> 3035</span>  close(fd);</div>
<div class="line"><a name="l03036"></a><span class="lineno"> 3036</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error setting %d channels on device (%s)."</span>,</div>
<div class="line"><a name="l03037"></a><span class="lineno"> 3037</span>  temp, name);</div>
<div class="line"><a name="l03038"></a><span class="lineno"> 3038</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03039"></a><span class="lineno"> 3039</span>  }</div>
<div class="line"><a name="l03040"></a><span class="lineno"> 3040</span> </div>
<div class="line"><a name="l03041"></a><span class="lineno"> 3041</span>  <span class="comment">// Set the sample rate.</span></div>
<div class="line"><a name="l03042"></a><span class="lineno"> 3042</span>  srate = sampleRate;</div>
<div class="line"><a name="l03043"></a><span class="lineno"> 3043</span>  temp = srate;</div>
<div class="line"><a name="l03044"></a><span class="lineno"> 3044</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_SPEED, &srate) == -1) {</div>
<div class="line"><a name="l03045"></a><span class="lineno"> 3045</span>  close(fd);</div>
<div class="line"><a name="l03046"></a><span class="lineno"> 3046</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error setting sample rate = %d on device (%s)."</span>,</div>
<div class="line"><a name="l03047"></a><span class="lineno"> 3047</span>  temp, name);</div>
<div class="line"><a name="l03048"></a><span class="lineno"> 3048</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03049"></a><span class="lineno"> 3049</span>  }</div>
<div class="line"><a name="l03050"></a><span class="lineno"> 3050</span> </div>
<div class="line"><a name="l03051"></a><span class="lineno"> 3051</span>  <span class="comment">// Verify the sample rate setup worked.</span></div>
<div class="line"><a name="l03052"></a><span class="lineno"> 3052</span>  <span class="keywordflow">if</span> (abs(srate - temp) > 100) {</div>
<div class="line"><a name="l03053"></a><span class="lineno"> 3053</span>  close(fd);</div>
<div class="line"><a name="l03054"></a><span class="lineno"> 3054</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error ... audio device (%s) doesn't support sample rate of %d."</span>,</div>
<div class="line"><a name="l03055"></a><span class="lineno"> 3055</span>  name, temp);</div>
<div class="line"><a name="l03056"></a><span class="lineno"> 3056</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03057"></a><span class="lineno"> 3057</span>  }</div>
<div class="line"><a name="l03058"></a><span class="lineno"> 3058</span>  stream->sampleRate = sampleRate;</div>
<div class="line"><a name="l03059"></a><span class="lineno"> 3059</span> </div>
<div class="line"><a name="l03060"></a><span class="lineno"> 3060</span>  <span class="keywordflow">if</span> (ioctl(fd, SNDCTL_DSP_GETBLKSIZE, &buffer_bytes) == -1) {</div>
<div class="line"><a name="l03061"></a><span class="lineno"> 3061</span>  close(fd);</div>
<div class="line"><a name="l03062"></a><span class="lineno"> 3062</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error getting buffer size for device (%s)."</span>,</div>
<div class="line"><a name="l03063"></a><span class="lineno"> 3063</span>  name);</div>
<div class="line"><a name="l03064"></a><span class="lineno"> 3064</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03065"></a><span class="lineno"> 3065</span>  }</div>
<div class="line"><a name="l03066"></a><span class="lineno"> 3066</span> </div>
<div class="line"><a name="l03067"></a><span class="lineno"> 3067</span>  <span class="comment">// Save buffer size (in sample frames).</span></div>
<div class="line"><a name="l03068"></a><span class="lineno"> 3068</span>  *bufferSize = buffer_bytes / (formatBytes(stream->deviceFormat[mode]) * device_channels);</div>
<div class="line"><a name="l03069"></a><span class="lineno"> 3069</span>  stream->bufferSize = *bufferSize;</div>
<div class="line"><a name="l03070"></a><span class="lineno"> 3070</span> </div>
<div class="line"><a name="l03071"></a><span class="lineno"> 3071</span>  <span class="keywordflow">if</span> (mode == INPUT && stream->mode == OUTPUT &&</div>
<div class="line"><a name="l03072"></a><span class="lineno"> 3072</span>  stream->device[0] == device) {</div>
<div class="line"><a name="l03073"></a><span class="lineno"> 3073</span>  <span class="comment">// We're doing duplex setup here.</span></div>
<div class="line"><a name="l03074"></a><span class="lineno"> 3074</span>  stream->deviceFormat[0] = stream->deviceFormat[1];</div>
<div class="line"><a name="l03075"></a><span class="lineno"> 3075</span>  stream->nDeviceChannels[0] = device_channels;</div>
<div class="line"><a name="l03076"></a><span class="lineno"> 3076</span>  }</div>
<div class="line"><a name="l03077"></a><span class="lineno"> 3077</span> </div>
<div class="line"><a name="l03078"></a><span class="lineno"> 3078</span>  <span class="comment">// Set flags for buffer conversion</span></div>
<div class="line"><a name="l03079"></a><span class="lineno"> 3079</span>  stream->doConvertBuffer[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l03080"></a><span class="lineno"> 3080</span>  <span class="keywordflow">if</span> (stream->userFormat != stream->deviceFormat[mode])</div>
<div class="line"><a name="l03081"></a><span class="lineno"> 3081</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03082"></a><span class="lineno"> 3082</span>  <span class="keywordflow">if</span> (stream->nUserChannels[mode] < stream->nDeviceChannels[mode])</div>
<div class="line"><a name="l03083"></a><span class="lineno"> 3083</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03084"></a><span class="lineno"> 3084</span> </div>
<div class="line"><a name="l03085"></a><span class="lineno"> 3085</span>  <span class="comment">// Allocate necessary internal buffers</span></div>
<div class="line"><a name="l03086"></a><span class="lineno"> 3086</span>  <span class="keywordflow">if</span> ( stream->nUserChannels[0] != stream->nUserChannels[1] ) {</div>
<div class="line"><a name="l03087"></a><span class="lineno"> 3087</span> </div>
<div class="line"><a name="l03088"></a><span class="lineno"> 3088</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l03089"></a><span class="lineno"> 3089</span>  <span class="keywordflow">if</span> (stream->nUserChannels[0] >= stream->nUserChannels[1])</div>
<div class="line"><a name="l03090"></a><span class="lineno"> 3090</span>  buffer_bytes = stream->nUserChannels[0];</div>
<div class="line"><a name="l03091"></a><span class="lineno"> 3091</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l03092"></a><span class="lineno"> 3092</span>  buffer_bytes = stream->nUserChannels[1];</div>
<div class="line"><a name="l03093"></a><span class="lineno"> 3093</span> </div>
<div class="line"><a name="l03094"></a><span class="lineno"> 3094</span>  buffer_bytes *= *bufferSize * formatBytes(stream->userFormat);</div>
<div class="line"><a name="l03095"></a><span class="lineno"> 3095</span>  <span class="keywordflow">if</span> (stream->userBuffer) free(stream->userBuffer);</div>
<div class="line"><a name="l03096"></a><span class="lineno"> 3096</span>  stream->userBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l03097"></a><span class="lineno"> 3097</span>  <span class="keywordflow">if</span> (stream->userBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l03098"></a><span class="lineno"> 3098</span>  close(fd);</div>
<div class="line"><a name="l03099"></a><span class="lineno"> 3099</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error allocating user buffer memory (%s)."</span>,</div>
<div class="line"><a name="l03100"></a><span class="lineno"> 3100</span>  name);</div>
<div class="line"><a name="l03101"></a><span class="lineno"> 3101</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03102"></a><span class="lineno"> 3102</span>  }</div>
<div class="line"><a name="l03103"></a><span class="lineno"> 3103</span>  }</div>
<div class="line"><a name="l03104"></a><span class="lineno"> 3104</span> </div>
<div class="line"><a name="l03105"></a><span class="lineno"> 3105</span>  <span class="keywordflow">if</span> ( stream->doConvertBuffer[mode] ) {</div>
<div class="line"><a name="l03106"></a><span class="lineno"> 3106</span> </div>
<div class="line"><a name="l03107"></a><span class="lineno"> 3107</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l03108"></a><span class="lineno"> 3108</span>  <span class="keywordtype">bool</span> makeBuffer = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03109"></a><span class="lineno"> 3109</span>  <span class="keywordflow">if</span> ( mode == OUTPUT )</div>
<div class="line"><a name="l03110"></a><span class="lineno"> 3110</span>  buffer_bytes = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l03111"></a><span class="lineno"> 3111</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l03112"></a><span class="lineno"> 3112</span>  buffer_bytes = stream->nDeviceChannels[1] * formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l03113"></a><span class="lineno"> 3113</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && stream->deviceBuffer ) {</div>
<div class="line"><a name="l03114"></a><span class="lineno"> 3114</span>  <span class="keywordtype">long</span> bytes_out = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l03115"></a><span class="lineno"> 3115</span>  <span class="keywordflow">if</span> ( buffer_bytes < bytes_out ) makeBuffer = <span class="keyword">false</span>;</div>
<div class="line"><a name="l03116"></a><span class="lineno"> 3116</span>  }</div>
<div class="line"><a name="l03117"></a><span class="lineno"> 3117</span>  }</div>
<div class="line"><a name="l03118"></a><span class="lineno"> 3118</span> </div>
<div class="line"><a name="l03119"></a><span class="lineno"> 3119</span>  <span class="keywordflow">if</span> ( makeBuffer ) {</div>
<div class="line"><a name="l03120"></a><span class="lineno"> 3120</span>  buffer_bytes *= *bufferSize;</div>
<div class="line"><a name="l03121"></a><span class="lineno"> 3121</span>  <span class="keywordflow">if</span> (stream->deviceBuffer) free(stream->deviceBuffer);</div>
<div class="line"><a name="l03122"></a><span class="lineno"> 3122</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l03123"></a><span class="lineno"> 3123</span>  <span class="keywordflow">if</span> (stream->deviceBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l03124"></a><span class="lineno"> 3124</span>  close(fd);</div>
<div class="line"><a name="l03125"></a><span class="lineno"> 3125</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l03126"></a><span class="lineno"> 3126</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error allocating device buffer memory (%s)."</span>,</div>
<div class="line"><a name="l03127"></a><span class="lineno"> 3127</span>  name);</div>
<div class="line"><a name="l03128"></a><span class="lineno"> 3128</span>  <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03129"></a><span class="lineno"> 3129</span>  }</div>
<div class="line"><a name="l03130"></a><span class="lineno"> 3130</span>  }</div>
<div class="line"><a name="l03131"></a><span class="lineno"> 3131</span>  }</div>
<div class="line"><a name="l03132"></a><span class="lineno"> 3132</span> </div>
<div class="line"><a name="l03133"></a><span class="lineno"> 3133</span>  stream->device[mode] = device;</div>
<div class="line"><a name="l03134"></a><span class="lineno"> 3134</span>  stream->handle[mode] = fd;</div>
<div class="line"><a name="l03135"></a><span class="lineno"> 3135</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l03136"></a><span class="lineno"> 3136</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && mode == INPUT ) {</div>
<div class="line"><a name="l03137"></a><span class="lineno"> 3137</span>  stream->mode = DUPLEX;</div>
<div class="line"><a name="l03138"></a><span class="lineno"> 3138</span>  <span class="keywordflow">if</span> (stream->device[0] == device)</div>
<div class="line"><a name="l03139"></a><span class="lineno"> 3139</span>  stream->handle[0] = fd;</div>
<div class="line"><a name="l03140"></a><span class="lineno"> 3140</span>  }</div>
<div class="line"><a name="l03141"></a><span class="lineno"> 3141</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l03142"></a><span class="lineno"> 3142</span>  stream->mode = mode;</div>
<div class="line"><a name="l03143"></a><span class="lineno"> 3143</span> </div>
<div class="line"><a name="l03144"></a><span class="lineno"> 3144</span>  <span class="keywordflow">return</span> SUCCESS;</div>
<div class="line"><a name="l03145"></a><span class="lineno"> 3145</span> </div>
<div class="line"><a name="l03146"></a><span class="lineno"> 3146</span>  error:</div>
<div class="line"><a name="l03147"></a><span class="lineno"> 3147</span>  <span class="keywordflow">if</span> (stream->handle[0]) {</div>
<div class="line"><a name="l03148"></a><span class="lineno"> 3148</span>  close(stream->handle[0]);</div>
<div class="line"><a name="l03149"></a><span class="lineno"> 3149</span>  stream->handle[0] = 0;</div>
<div class="line"><a name="l03150"></a><span class="lineno"> 3150</span>  }</div>
<div class="line"><a name="l03151"></a><span class="lineno"> 3151</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l03152"></a><span class="lineno"> 3152</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03153"></a><span class="lineno"> 3153</span> }</div>
<div class="line"><a name="l03154"></a><span class="lineno"> 3154</span> </div>
<div class="line"><a name="l03155"></a><span class="lineno"> 3155</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a9b25382cabd65d739f2718f8647f1066" title="Public method which closes a stream and frees any associated buffers.">RtAudio :: closeStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l03156"></a><span class="lineno"> 3156</span> {</div>
<div class="line"><a name="l03157"></a><span class="lineno"> 3157</span>  <span class="comment">// We don't want an exception to be thrown here because this</span></div>
<div class="line"><a name="l03158"></a><span class="lineno"> 3158</span>  <span class="comment">// function is called by our class destructor. So, do our own</span></div>
<div class="line"><a name="l03159"></a><span class="lineno"> 3159</span>  <span class="comment">// streamId check.</span></div>
<div class="line"><a name="l03160"></a><span class="lineno"> 3160</span>  <span class="keywordflow">if</span> ( streams.find( streamId ) == streams.end() ) {</div>
<div class="line"><a name="l03161"></a><span class="lineno"> 3161</span>  sprintf(message, <span class="stringliteral">"RtAudio: invalid stream identifier!"</span>);</div>
<div class="line"><a name="l03162"></a><span class="lineno"> 3162</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l03163"></a><span class="lineno"> 3163</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03164"></a><span class="lineno"> 3164</span>  }</div>
<div class="line"><a name="l03165"></a><span class="lineno"> 3165</span> </div>
<div class="line"><a name="l03166"></a><span class="lineno"> 3166</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) streams[streamId];</div>
<div class="line"><a name="l03167"></a><span class="lineno"> 3167</span> </div>
<div class="line"><a name="l03168"></a><span class="lineno"> 3168</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l03169"></a><span class="lineno"> 3169</span>  pthread_cancel(stream->callbackInfo.thread);</div>
<div class="line"><a name="l03170"></a><span class="lineno"> 3170</span>  pthread_join(stream->callbackInfo.thread, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l03171"></a><span class="lineno"> 3171</span>  }</div>
<div class="line"><a name="l03172"></a><span class="lineno"> 3172</span> </div>
<div class="line"><a name="l03173"></a><span class="lineno"> 3173</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING) {</div>
<div class="line"><a name="l03174"></a><span class="lineno"> 3174</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX)</div>
<div class="line"><a name="l03175"></a><span class="lineno"> 3175</span>  ioctl(stream->handle[0], SNDCTL_DSP_RESET, 0);</div>
<div class="line"><a name="l03176"></a><span class="lineno"> 3176</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX)</div>
<div class="line"><a name="l03177"></a><span class="lineno"> 3177</span>  ioctl(stream->handle[1], SNDCTL_DSP_RESET, 0);</div>
<div class="line"><a name="l03178"></a><span class="lineno"> 3178</span>  }</div>
<div class="line"><a name="l03179"></a><span class="lineno"> 3179</span> </div>
<div class="line"><a name="l03180"></a><span class="lineno"> 3180</span>  pthread_mutex_destroy(&stream->mutex);</div>
<div class="line"><a name="l03181"></a><span class="lineno"> 3181</span> </div>
<div class="line"><a name="l03182"></a><span class="lineno"> 3182</span>  <span class="keywordflow">if</span> (stream->handle[0])</div>
<div class="line"><a name="l03183"></a><span class="lineno"> 3183</span>  close(stream->handle[0]);</div>
<div class="line"><a name="l03184"></a><span class="lineno"> 3184</span> </div>
<div class="line"><a name="l03185"></a><span class="lineno"> 3185</span>  <span class="keywordflow">if</span> (stream->handle[1])</div>
<div class="line"><a name="l03186"></a><span class="lineno"> 3186</span>  close(stream->handle[1]);</div>
<div class="line"><a name="l03187"></a><span class="lineno"> 3187</span> </div>
<div class="line"><a name="l03188"></a><span class="lineno"> 3188</span>  <span class="keywordflow">if</span> (stream->userBuffer)</div>
<div class="line"><a name="l03189"></a><span class="lineno"> 3189</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l03190"></a><span class="lineno"> 3190</span> </div>
<div class="line"><a name="l03191"></a><span class="lineno"> 3191</span>  <span class="keywordflow">if</span> (stream->deviceBuffer)</div>
<div class="line"><a name="l03192"></a><span class="lineno"> 3192</span>  free(stream->deviceBuffer);</div>
<div class="line"><a name="l03193"></a><span class="lineno"> 3193</span> </div>
<div class="line"><a name="l03194"></a><span class="lineno"> 3194</span>  free(stream);</div>
<div class="line"><a name="l03195"></a><span class="lineno"> 3195</span>  streams.erase(streamId);</div>
<div class="line"><a name="l03196"></a><span class="lineno"> 3196</span> }</div>
<div class="line"><a name="l03197"></a><span class="lineno"> 3197</span> </div>
<div class="line"><a name="l03198"></a><span class="lineno"> 3198</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a304d9fc57cee6539bb1d98b82b10508f" title="Public method which starts a stream.">RtAudio :: startStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l03199"></a><span class="lineno"> 3199</span> {</div>
<div class="line"><a name="l03200"></a><span class="lineno"> 3200</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l03201"></a><span class="lineno"> 3201</span> </div>
<div class="line"><a name="l03202"></a><span class="lineno"> 3202</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03203"></a><span class="lineno"> 3203</span> </div>
<div class="line"><a name="l03204"></a><span class="lineno"> 3204</span>  stream->state = STREAM_RUNNING;</div>
<div class="line"><a name="l03205"></a><span class="lineno"> 3205</span> </div>
<div class="line"><a name="l03206"></a><span class="lineno"> 3206</span>  <span class="comment">// No need to do anything else here ... OSS automatically starts</span></div>
<div class="line"><a name="l03207"></a><span class="lineno"> 3207</span>  <span class="comment">// when fed samples.</span></div>
<div class="line"><a name="l03208"></a><span class="lineno"> 3208</span> </div>
<div class="line"><a name="l03209"></a><span class="lineno"> 3209</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03210"></a><span class="lineno"> 3210</span> }</div>
<div class="line"><a name="l03211"></a><span class="lineno"> 3211</span> </div>
<div class="line"><a name="l03212"></a><span class="lineno"> 3212</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">RtAudio :: stopStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l03213"></a><span class="lineno"> 3213</span> {</div>
<div class="line"><a name="l03214"></a><span class="lineno"> 3214</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l03215"></a><span class="lineno"> 3215</span> </div>
<div class="line"><a name="l03216"></a><span class="lineno"> 3216</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03217"></a><span class="lineno"> 3217</span> </div>
<div class="line"><a name="l03218"></a><span class="lineno"> 3218</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l03219"></a><span class="lineno"> 3219</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l03220"></a><span class="lineno"> 3220</span> </div>
<div class="line"><a name="l03221"></a><span class="lineno"> 3221</span>  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l03222"></a><span class="lineno"> 3222</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l03223"></a><span class="lineno"> 3223</span>  err = ioctl(stream->handle[0], SNDCTL_DSP_SYNC, 0);</div>
<div class="line"><a name="l03224"></a><span class="lineno"> 3224</span>  <span class="keywordflow">if</span> (err < -1) {</div>
<div class="line"><a name="l03225"></a><span class="lineno"> 3225</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error stopping device (%s)."</span>,</div>
<div class="line"><a name="l03226"></a><span class="lineno"> 3226</span>  devices[stream->device[0]].name);</div>
<div class="line"><a name="l03227"></a><span class="lineno"> 3227</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l03228"></a><span class="lineno"> 3228</span>  }</div>
<div class="line"><a name="l03229"></a><span class="lineno"> 3229</span>  }</div>
<div class="line"><a name="l03230"></a><span class="lineno"> 3230</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03231"></a><span class="lineno"> 3231</span>  err = ioctl(stream->handle[1], SNDCTL_DSP_SYNC, 0);</div>
<div class="line"><a name="l03232"></a><span class="lineno"> 3232</span>  <span class="keywordflow">if</span> (err < -1) {</div>
<div class="line"><a name="l03233"></a><span class="lineno"> 3233</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error stopping device (%s)."</span>,</div>
<div class="line"><a name="l03234"></a><span class="lineno"> 3234</span>  devices[stream->device[1]].name);</div>
<div class="line"><a name="l03235"></a><span class="lineno"> 3235</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l03236"></a><span class="lineno"> 3236</span>  }</div>
<div class="line"><a name="l03237"></a><span class="lineno"> 3237</span>  }</div>
<div class="line"><a name="l03238"></a><span class="lineno"> 3238</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l03239"></a><span class="lineno"> 3239</span> </div>
<div class="line"><a name="l03240"></a><span class="lineno"> 3240</span>  unlock:</div>
<div class="line"><a name="l03241"></a><span class="lineno"> 3241</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03242"></a><span class="lineno"> 3242</span> }</div>
<div class="line"><a name="l03243"></a><span class="lineno"> 3243</span> </div>
<div class="line"><a name="l03244"></a><span class="lineno"> 3244</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a72335b2cf99913c017886ce5a818e6a3" title="Stop a stream, discarding any samples remaining in the input/output queue.">RtAudio :: abortStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l03245"></a><span class="lineno"> 3245</span> {</div>
<div class="line"><a name="l03246"></a><span class="lineno"> 3246</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l03247"></a><span class="lineno"> 3247</span> </div>
<div class="line"><a name="l03248"></a><span class="lineno"> 3248</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03249"></a><span class="lineno"> 3249</span> </div>
<div class="line"><a name="l03250"></a><span class="lineno"> 3250</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l03251"></a><span class="lineno"> 3251</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l03252"></a><span class="lineno"> 3252</span> </div>
<div class="line"><a name="l03253"></a><span class="lineno"> 3253</span>  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l03254"></a><span class="lineno"> 3254</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l03255"></a><span class="lineno"> 3255</span>  err = ioctl(stream->handle[0], SNDCTL_DSP_RESET, 0);</div>
<div class="line"><a name="l03256"></a><span class="lineno"> 3256</span>  <span class="keywordflow">if</span> (err < -1) {</div>
<div class="line"><a name="l03257"></a><span class="lineno"> 3257</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error aborting device (%s)."</span>,</div>
<div class="line"><a name="l03258"></a><span class="lineno"> 3258</span>  devices[stream->device[0]].name);</div>
<div class="line"><a name="l03259"></a><span class="lineno"> 3259</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l03260"></a><span class="lineno"> 3260</span>  }</div>
<div class="line"><a name="l03261"></a><span class="lineno"> 3261</span>  }</div>
<div class="line"><a name="l03262"></a><span class="lineno"> 3262</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03263"></a><span class="lineno"> 3263</span>  err = ioctl(stream->handle[1], SNDCTL_DSP_RESET, 0);</div>
<div class="line"><a name="l03264"></a><span class="lineno"> 3264</span>  <span class="keywordflow">if</span> (err < -1) {</div>
<div class="line"><a name="l03265"></a><span class="lineno"> 3265</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS error aborting device (%s)."</span>,</div>
<div class="line"><a name="l03266"></a><span class="lineno"> 3266</span>  devices[stream->device[1]].name);</div>
<div class="line"><a name="l03267"></a><span class="lineno"> 3267</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l03268"></a><span class="lineno"> 3268</span>  }</div>
<div class="line"><a name="l03269"></a><span class="lineno"> 3269</span>  }</div>
<div class="line"><a name="l03270"></a><span class="lineno"> 3270</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l03271"></a><span class="lineno"> 3271</span> </div>
<div class="line"><a name="l03272"></a><span class="lineno"> 3272</span>  unlock:</div>
<div class="line"><a name="l03273"></a><span class="lineno"> 3273</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03274"></a><span class="lineno"> 3274</span> }</div>
<div class="line"><a name="l03275"></a><span class="lineno"> 3275</span> </div>
<div class="line"><a name="l03276"></a><span class="lineno"> 3276</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#ab7e0a7652c1c90c0463ccbff3b794f2f" title="Queries a stream to determine whether a call to the tickStream() method will block.">RtAudio :: streamWillBlock</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l03277"></a><span class="lineno"> 3277</span> {</div>
<div class="line"><a name="l03278"></a><span class="lineno"> 3278</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l03279"></a><span class="lineno"> 3279</span> </div>
<div class="line"><a name="l03280"></a><span class="lineno"> 3280</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03281"></a><span class="lineno"> 3281</span> </div>
<div class="line"><a name="l03282"></a><span class="lineno"> 3282</span>  <span class="keywordtype">int</span> bytes = 0, channels = 0, frames = 0;</div>
<div class="line"><a name="l03283"></a><span class="lineno"> 3283</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l03284"></a><span class="lineno"> 3284</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l03285"></a><span class="lineno"> 3285</span> </div>
<div class="line"><a name="l03286"></a><span class="lineno"> 3286</span>  audio_buf_info info;</div>
<div class="line"><a name="l03287"></a><span class="lineno"> 3287</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l03288"></a><span class="lineno"> 3288</span>  ioctl(stream->handle[0], SNDCTL_DSP_GETOSPACE, &info);</div>
<div class="line"><a name="l03289"></a><span class="lineno"> 3289</span>  bytes = info.bytes;</div>
<div class="line"><a name="l03290"></a><span class="lineno"> 3290</span>  channels = stream->nDeviceChannels[0];</div>
<div class="line"><a name="l03291"></a><span class="lineno"> 3291</span>  }</div>
<div class="line"><a name="l03292"></a><span class="lineno"> 3292</span> </div>
<div class="line"><a name="l03293"></a><span class="lineno"> 3293</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l03294"></a><span class="lineno"> 3294</span>  ioctl(stream->handle[1], SNDCTL_DSP_GETISPACE, &info);</div>
<div class="line"><a name="l03295"></a><span class="lineno"> 3295</span>  <span class="keywordflow">if</span> (stream->mode == DUPLEX ) {</div>
<div class="line"><a name="l03296"></a><span class="lineno"> 3296</span>  bytes = (bytes < info.bytes) ? bytes : info.bytes;</div>
<div class="line"><a name="l03297"></a><span class="lineno"> 3297</span>  channels = stream->nDeviceChannels[0];</div>
<div class="line"><a name="l03298"></a><span class="lineno"> 3298</span>  }</div>
<div class="line"><a name="l03299"></a><span class="lineno"> 3299</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03300"></a><span class="lineno"> 3300</span>  bytes = info.bytes;</div>
<div class="line"><a name="l03301"></a><span class="lineno"> 3301</span>  channels = stream->nDeviceChannels[1];</div>
<div class="line"><a name="l03302"></a><span class="lineno"> 3302</span>  }</div>
<div class="line"><a name="l03303"></a><span class="lineno"> 3303</span>  }</div>
<div class="line"><a name="l03304"></a><span class="lineno"> 3304</span> </div>
<div class="line"><a name="l03305"></a><span class="lineno"> 3305</span>  frames = (int) (bytes / (channels * formatBytes(stream->deviceFormat[0])));</div>
<div class="line"><a name="l03306"></a><span class="lineno"> 3306</span>  frames -= stream->bufferSize;</div>
<div class="line"><a name="l03307"></a><span class="lineno"> 3307</span>  <span class="keywordflow">if</span> (frames < 0) frames = 0;</div>
<div class="line"><a name="l03308"></a><span class="lineno"> 3308</span> </div>
<div class="line"><a name="l03309"></a><span class="lineno"> 3309</span>  unlock:</div>
<div class="line"><a name="l03310"></a><span class="lineno"> 3310</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03311"></a><span class="lineno"> 3311</span>  <span class="keywordflow">return</span> frames;</div>
<div class="line"><a name="l03312"></a><span class="lineno"> 3312</span> }</div>
<div class="line"><a name="l03313"></a><span class="lineno"> 3313</span> </div>
<div class="line"><a name="l03314"></a><span class="lineno"> 3314</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a2ba2bb7bf1995b0d754ec96b10bda324" title="Public method used to trigger processing of input/output data for a stream.">RtAudio :: tickStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l03315"></a><span class="lineno"> 3315</span> {</div>
<div class="line"><a name="l03316"></a><span class="lineno"> 3316</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l03317"></a><span class="lineno"> 3317</span> </div>
<div class="line"><a name="l03318"></a><span class="lineno"> 3318</span>  <span class="keywordtype">int</span> stopStream = 0;</div>
<div class="line"><a name="l03319"></a><span class="lineno"> 3319</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED) {</div>
<div class="line"><a name="l03320"></a><span class="lineno"> 3320</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) usleep(50000); <span class="comment">// sleep 50 milliseconds</span></div>
<div class="line"><a name="l03321"></a><span class="lineno"> 3321</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03322"></a><span class="lineno"> 3322</span>  }</div>
<div class="line"><a name="l03323"></a><span class="lineno"> 3323</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l03324"></a><span class="lineno"> 3324</span>  <a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a> callback = (<a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a>) stream->callbackInfo.callback;</div>
<div class="line"><a name="l03325"></a><span class="lineno"> 3325</span>  stopStream = callback(stream->userBuffer, stream->bufferSize, stream->callbackInfo.userData);</div>
<div class="line"><a name="l03326"></a><span class="lineno"> 3326</span>  }</div>
<div class="line"><a name="l03327"></a><span class="lineno"> 3327</span> </div>
<div class="line"><a name="l03328"></a><span class="lineno"> 3328</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03329"></a><span class="lineno"> 3329</span> </div>
<div class="line"><a name="l03330"></a><span class="lineno"> 3330</span>  <span class="comment">// The state might change while waiting on a mutex.</span></div>
<div class="line"><a name="l03331"></a><span class="lineno"> 3331</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l03332"></a><span class="lineno"> 3332</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l03333"></a><span class="lineno"> 3333</span> </div>
<div class="line"><a name="l03334"></a><span class="lineno"> 3334</span>  <span class="keywordtype">int</span> result;</div>
<div class="line"><a name="l03335"></a><span class="lineno"> 3335</span>  <span class="keywordtype">char</span> *buffer;</div>
<div class="line"><a name="l03336"></a><span class="lineno"> 3336</span>  <span class="keywordtype">int</span> samples;</div>
<div class="line"><a name="l03337"></a><span class="lineno"> 3337</span>  <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RTAUDIO_FORMAT</a> format;</div>
<div class="line"><a name="l03338"></a><span class="lineno"> 3338</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l03339"></a><span class="lineno"> 3339</span> </div>
<div class="line"><a name="l03340"></a><span class="lineno"> 3340</span>  <span class="comment">// Setup parameters and do buffer conversion if necessary.</span></div>
<div class="line"><a name="l03341"></a><span class="lineno"> 3341</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[0]) {</div>
<div class="line"><a name="l03342"></a><span class="lineno"> 3342</span>  convertStreamBuffer(stream, OUTPUT);</div>
<div class="line"><a name="l03343"></a><span class="lineno"> 3343</span>  buffer = stream->deviceBuffer;</div>
<div class="line"><a name="l03344"></a><span class="lineno"> 3344</span>  samples = stream->bufferSize * stream->nDeviceChannels[0];</div>
<div class="line"><a name="l03345"></a><span class="lineno"> 3345</span>  format = stream->deviceFormat[0];</div>
<div class="line"><a name="l03346"></a><span class="lineno"> 3346</span>  }</div>
<div class="line"><a name="l03347"></a><span class="lineno"> 3347</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03348"></a><span class="lineno"> 3348</span>  buffer = stream->userBuffer;</div>
<div class="line"><a name="l03349"></a><span class="lineno"> 3349</span>  samples = stream->bufferSize * stream->nUserChannels[0];</div>
<div class="line"><a name="l03350"></a><span class="lineno"> 3350</span>  format = stream->userFormat;</div>
<div class="line"><a name="l03351"></a><span class="lineno"> 3351</span>  }</div>
<div class="line"><a name="l03352"></a><span class="lineno"> 3352</span> </div>
<div class="line"><a name="l03353"></a><span class="lineno"> 3353</span>  <span class="comment">// Do byte swapping if necessary.</span></div>
<div class="line"><a name="l03354"></a><span class="lineno"> 3354</span>  <span class="keywordflow">if</span> (stream->doByteSwap[0])</div>
<div class="line"><a name="l03355"></a><span class="lineno"> 3355</span>  byteSwapBuffer(buffer, samples, format);</div>
<div class="line"><a name="l03356"></a><span class="lineno"> 3356</span> </div>
<div class="line"><a name="l03357"></a><span class="lineno"> 3357</span>  <span class="comment">// Write samples to device.</span></div>
<div class="line"><a name="l03358"></a><span class="lineno"> 3358</span>  result = write(stream->handle[0], buffer, samples * formatBytes(format));</div>
<div class="line"><a name="l03359"></a><span class="lineno"> 3359</span> </div>
<div class="line"><a name="l03360"></a><span class="lineno"> 3360</span>  <span class="keywordflow">if</span> (result == -1) {</div>
<div class="line"><a name="l03361"></a><span class="lineno"> 3361</span>  <span class="comment">// This could be an underrun, but the basic OSS API doesn't provide a means for determining that.</span></div>
<div class="line"><a name="l03362"></a><span class="lineno"> 3362</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS audio write error for device (%s)."</span>,</div>
<div class="line"><a name="l03363"></a><span class="lineno"> 3363</span>  devices[stream->device[0]].name);</div>
<div class="line"><a name="l03364"></a><span class="lineno"> 3364</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l03365"></a><span class="lineno"> 3365</span>  }</div>
<div class="line"><a name="l03366"></a><span class="lineno"> 3366</span>  }</div>
<div class="line"><a name="l03367"></a><span class="lineno"> 3367</span> </div>
<div class="line"><a name="l03368"></a><span class="lineno"> 3368</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l03369"></a><span class="lineno"> 3369</span> </div>
<div class="line"><a name="l03370"></a><span class="lineno"> 3370</span>  <span class="comment">// Setup parameters.</span></div>
<div class="line"><a name="l03371"></a><span class="lineno"> 3371</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1]) {</div>
<div class="line"><a name="l03372"></a><span class="lineno"> 3372</span>  buffer = stream->deviceBuffer;</div>
<div class="line"><a name="l03373"></a><span class="lineno"> 3373</span>  samples = stream->bufferSize * stream->nDeviceChannels[1];</div>
<div class="line"><a name="l03374"></a><span class="lineno"> 3374</span>  format = stream->deviceFormat[1];</div>
<div class="line"><a name="l03375"></a><span class="lineno"> 3375</span>  }</div>
<div class="line"><a name="l03376"></a><span class="lineno"> 3376</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03377"></a><span class="lineno"> 3377</span>  buffer = stream->userBuffer;</div>
<div class="line"><a name="l03378"></a><span class="lineno"> 3378</span>  samples = stream->bufferSize * stream->nUserChannels[1];</div>
<div class="line"><a name="l03379"></a><span class="lineno"> 3379</span>  format = stream->userFormat;</div>
<div class="line"><a name="l03380"></a><span class="lineno"> 3380</span>  }</div>
<div class="line"><a name="l03381"></a><span class="lineno"> 3381</span> </div>
<div class="line"><a name="l03382"></a><span class="lineno"> 3382</span>  <span class="comment">// Read samples from device.</span></div>
<div class="line"><a name="l03383"></a><span class="lineno"> 3383</span>  result = read(stream->handle[1], buffer, samples * formatBytes(format));</div>
<div class="line"><a name="l03384"></a><span class="lineno"> 3384</span> </div>
<div class="line"><a name="l03385"></a><span class="lineno"> 3385</span>  <span class="keywordflow">if</span> (result == -1) {</div>
<div class="line"><a name="l03386"></a><span class="lineno"> 3386</span>  <span class="comment">// This could be an overrun, but the basic OSS API doesn't provide a means for determining that.</span></div>
<div class="line"><a name="l03387"></a><span class="lineno"> 3387</span>  sprintf(message, <span class="stringliteral">"RtAudio: OSS audio read error for device (%s)."</span>,</div>
<div class="line"><a name="l03388"></a><span class="lineno"> 3388</span>  devices[stream->device[1]].name);</div>
<div class="line"><a name="l03389"></a><span class="lineno"> 3389</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l03390"></a><span class="lineno"> 3390</span>  }</div>
<div class="line"><a name="l03391"></a><span class="lineno"> 3391</span> </div>
<div class="line"><a name="l03392"></a><span class="lineno"> 3392</span>  <span class="comment">// Do byte swapping if necessary.</span></div>
<div class="line"><a name="l03393"></a><span class="lineno"> 3393</span>  <span class="keywordflow">if</span> (stream->doByteSwap[1])</div>
<div class="line"><a name="l03394"></a><span class="lineno"> 3394</span>  byteSwapBuffer(buffer, samples, format);</div>
<div class="line"><a name="l03395"></a><span class="lineno"> 3395</span> </div>
<div class="line"><a name="l03396"></a><span class="lineno"> 3396</span>  <span class="comment">// Do buffer conversion if necessary.</span></div>
<div class="line"><a name="l03397"></a><span class="lineno"> 3397</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1])</div>
<div class="line"><a name="l03398"></a><span class="lineno"> 3398</span>  convertStreamBuffer(stream, INPUT);</div>
<div class="line"><a name="l03399"></a><span class="lineno"> 3399</span>  }</div>
<div class="line"><a name="l03400"></a><span class="lineno"> 3400</span> </div>
<div class="line"><a name="l03401"></a><span class="lineno"> 3401</span>  unlock:</div>
<div class="line"><a name="l03402"></a><span class="lineno"> 3402</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l03403"></a><span class="lineno"> 3403</span> </div>
<div class="line"><a name="l03404"></a><span class="lineno"> 3404</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback && stopStream)</div>
<div class="line"><a name="l03405"></a><span class="lineno"> 3405</span>  this-><a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>(streamId);</div>
<div class="line"><a name="l03406"></a><span class="lineno"> 3406</span> }</div>
<div class="line"><a name="l03407"></a><span class="lineno"> 3407</span> </div>
<div class="line"><a name="l03408"></a><span class="lineno"> 3408</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">void</span> *callbackHandler(<span class="keywordtype">void</span> *ptr)</div>
<div class="line"><a name="l03409"></a><span class="lineno"> 3409</span> {</div>
<div class="line"><a name="l03410"></a><span class="lineno"> 3410</span>  <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *info = (<a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *) ptr;</div>
<div class="line"><a name="l03411"></a><span class="lineno"> 3411</span>  <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *<span class="keywordtype">object</span> = (<a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *) info-><a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a>;</div>
<div class="line"><a name="l03412"></a><span class="lineno"> 3412</span>  <span class="keywordtype">int</span> stream = info-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a>;</div>
<div class="line"><a name="l03413"></a><span class="lineno"> 3413</span>  <span class="keywordtype">bool</span> *usingCallback = &info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a>;</div>
<div class="line"><a name="l03414"></a><span class="lineno"> 3414</span> </div>
<div class="line"><a name="l03415"></a><span class="lineno"> 3415</span>  while ( *usingCallback ) {</div>
<div class="line"><a name="l03416"></a><span class="lineno"> 3416</span>  pthread_testcancel();</div>
<div class="line"><a name="l03417"></a><span class="lineno"> 3417</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l03418"></a><span class="lineno"> 3418</span>  <span class="keywordtype">object</span>->tickStream(stream);</div>
<div class="line"><a name="l03419"></a><span class="lineno"> 3419</span>  }</div>
<div class="line"><a name="l03420"></a><span class="lineno"> 3420</span>  <span class="keywordflow">catch</span> (<a class="code" href="classRtError.html" title="Exception handling class for RtAudio.">RtError</a> &exception) {</div>
<div class="line"><a name="l03421"></a><span class="lineno"> 3421</span>  fprintf(stderr, <span class="stringliteral">"\nRtAudio: Callback thread error (%s) ... closing thread.\n\n"</span>,</div>
<div class="line"><a name="l03422"></a><span class="lineno"> 3422</span>  exception.<a class="code" href="classRtError.html#aeb19bdd498bb37c935b1dfbc41195114" title="Returns the "thrown" error message string.">getMessage</a>());</div>
<div class="line"><a name="l03423"></a><span class="lineno"> 3423</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03424"></a><span class="lineno"> 3424</span>  }</div>
<div class="line"><a name="l03425"></a><span class="lineno"> 3425</span>  }</div>
<div class="line"><a name="l03426"></a><span class="lineno"> 3426</span> </div>
<div class="line"><a name="l03427"></a><span class="lineno"> 3427</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03428"></a><span class="lineno"> 3428</span> }</div>
<div class="line"><a name="l03429"></a><span class="lineno"> 3429</span> </div>
<div class="line"><a name="l03430"></a><span class="lineno"> 3430</span> </div>
<div class="line"><a name="l03431"></a><span class="lineno"> 3431</span> <span class="comment">//******************** End of __LINUX_OSS__ *********************//</span></div>
<div class="line"><a name="l03432"></a><span class="lineno"> 3432</span> </div>
<div class="line"><a name="l03433"></a><span class="lineno"> 3433</span> <span class="preprocessor">#elif defined(__WINDOWS_ASIO__) // ASIO API on Windows</span></div>
<div class="line"><a name="l03434"></a><span class="lineno"> 3434</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l03435"></a><span class="lineno"> 3435</span> <span class="comment">// The ASIO API is designed around a callback scheme, so this</span></div>
<div class="line"><a name="l03436"></a><span class="lineno"> 3436</span> <span class="comment">// implementation is similar to that used for OS X CoreAudio. The</span></div>
<div class="line"><a name="l03437"></a><span class="lineno"> 3437</span> <span class="comment">// primary constraint with ASIO is that it only allows access to a</span></div>
<div class="line"><a name="l03438"></a><span class="lineno"> 3438</span> <span class="comment">// single driver at a time. Thus, it is not possible to have more</span></div>
<div class="line"><a name="l03439"></a><span class="lineno"> 3439</span> <span class="comment">// than one simultaneous RtAudio stream.</span></div>
<div class="line"><a name="l03440"></a><span class="lineno"> 3440</span> <span class="comment">//</span></div>
<div class="line"><a name="l03441"></a><span class="lineno"> 3441</span> <span class="comment">// This implementation also requires a number of external ASIO files</span></div>
<div class="line"><a name="l03442"></a><span class="lineno"> 3442</span> <span class="comment">// and a few global variables. The ASIO callback scheme does not</span></div>
<div class="line"><a name="l03443"></a><span class="lineno"> 3443</span> <span class="comment">// allow for the passing of user data, so we must create a global</span></div>
<div class="line"><a name="l03444"></a><span class="lineno"> 3444</span> <span class="comment">// pointer to our callbackInfo structure.</span></div>
<div class="line"><a name="l03445"></a><span class="lineno"> 3445</span> </div>
<div class="line"><a name="l03446"></a><span class="lineno"> 3446</span> <span class="preprocessor">#include "asio/asiosys.h"</span></div>
<div class="line"><a name="l03447"></a><span class="lineno"> 3447</span> <span class="preprocessor">#include "asio/asio.h"</span></div>
<div class="line"><a name="l03448"></a><span class="lineno"> 3448</span> <span class="preprocessor">#include "asio/asiodrivers.h"</span></div>
<div class="line"><a name="l03449"></a><span class="lineno"> 3449</span> <span class="preprocessor">#include <math.h></span></div>
<div class="line"><a name="l03450"></a><span class="lineno"> 3450</span> </div>
<div class="line"><a name="l03451"></a><span class="lineno"> 3451</span> AsioDrivers drivers;</div>
<div class="line"><a name="l03452"></a><span class="lineno"> 3452</span> ASIOCallbacks asioCallbacks;</div>
<div class="line"><a name="l03453"></a><span class="lineno"> 3453</span> <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *asioCallbackInfo;</div>
<div class="line"><a name="l03454"></a><span class="lineno"> 3454</span> ASIODriverInfo driverInfo;</div>
<div class="line"><a name="l03455"></a><span class="lineno"> 3455</span> </div>
<div class="line"><a name="l03456"></a><span class="lineno"> 3456</span> <span class="keywordtype">void</span> RtAudio :: initialize(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l03457"></a><span class="lineno"> 3457</span> {</div>
<div class="line"><a name="l03458"></a><span class="lineno"> 3458</span>  nDevices = drivers.asioGetNumDev();</div>
<div class="line"><a name="l03459"></a><span class="lineno"> 3459</span>  <span class="keywordflow">if</span> (nDevices <= 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03460"></a><span class="lineno"> 3460</span> </div>
<div class="line"><a name="l03461"></a><span class="lineno"> 3461</span>  <span class="comment">// Allocate the RTAUDIO_DEVICE structures.</span></div>
<div class="line"><a name="l03462"></a><span class="lineno"> 3462</span>  devices = (RTAUDIO_DEVICE *) calloc(nDevices, <span class="keyword">sizeof</span>(RTAUDIO_DEVICE));</div>
<div class="line"><a name="l03463"></a><span class="lineno"> 3463</span>  <span class="keywordflow">if</span> (devices == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l03464"></a><span class="lineno"> 3464</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l03465"></a><span class="lineno"> 3465</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ab4f813e5a36905c89d4081a59497432e">RtError::MEMORY_ERROR</a>);</div>
<div class="line"><a name="l03466"></a><span class="lineno"> 3466</span>  }</div>
<div class="line"><a name="l03467"></a><span class="lineno"> 3467</span> </div>
<div class="line"><a name="l03468"></a><span class="lineno"> 3468</span>  <span class="comment">// Write device driver names to device structures and then probe the</span></div>
<div class="line"><a name="l03469"></a><span class="lineno"> 3469</span>  <span class="comment">// device capabilities.</span></div>
<div class="line"><a name="l03470"></a><span class="lineno"> 3470</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<nDevices; i++) {</div>
<div class="line"><a name="l03471"></a><span class="lineno"> 3471</span>  <span class="keywordflow">if</span> ( drivers.asioGetDriverName( i, devices[i].name, 128 ) == 0 )</div>
<div class="line"><a name="l03472"></a><span class="lineno"> 3472</span>  <span class="comment">//probeDeviceInfo(&devices[i]);</span></div>
<div class="line"><a name="l03473"></a><span class="lineno"> 3473</span>  ;</div>
<div class="line"><a name="l03474"></a><span class="lineno"> 3474</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03475"></a><span class="lineno"> 3475</span>  sprintf(message, <span class="stringliteral">"RtAudio: error getting ASIO driver name for device index %d!"</span>, i);</div>
<div class="line"><a name="l03476"></a><span class="lineno"> 3476</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l03477"></a><span class="lineno"> 3477</span>  }</div>
<div class="line"><a name="l03478"></a><span class="lineno"> 3478</span>  }</div>
<div class="line"><a name="l03479"></a><span class="lineno"> 3479</span> </div>
<div class="line"><a name="l03480"></a><span class="lineno"> 3480</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03481"></a><span class="lineno"> 3481</span>  driverInfo.asioVersion = 2;</div>
<div class="line"><a name="l03482"></a><span class="lineno"> 3482</span>  <span class="comment">// See note in DirectSound implementation about GetDesktopWindow().</span></div>
<div class="line"><a name="l03483"></a><span class="lineno"> 3483</span>  driverInfo.sysRef = GetForegroundWindow();</div>
<div class="line"><a name="l03484"></a><span class="lineno"> 3484</span> }</div>
<div class="line"><a name="l03485"></a><span class="lineno"> 3485</span> </div>
<div class="line"><a name="l03486"></a><span class="lineno"> 3486</span> <span class="keywordtype">int</span> RtAudio :: getDefaultInputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l03487"></a><span class="lineno"> 3487</span> {</div>
<div class="line"><a name="l03488"></a><span class="lineno"> 3488</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03489"></a><span class="lineno"> 3489</span> }</div>
<div class="line"><a name="l03490"></a><span class="lineno"> 3490</span> </div>
<div class="line"><a name="l03491"></a><span class="lineno"> 3491</span> <span class="keywordtype">int</span> RtAudio :: getDefaultOutputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l03492"></a><span class="lineno"> 3492</span> {</div>
<div class="line"><a name="l03493"></a><span class="lineno"> 3493</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03494"></a><span class="lineno"> 3494</span> }</div>
<div class="line"><a name="l03495"></a><span class="lineno"> 3495</span> </div>
<div class="line"><a name="l03496"></a><span class="lineno"> 3496</span> <span class="keywordtype">void</span> RtAudio :: probeDeviceInfo(RTAUDIO_DEVICE *info)</div>
<div class="line"><a name="l03497"></a><span class="lineno"> 3497</span> {</div>
<div class="line"><a name="l03498"></a><span class="lineno"> 3498</span>  <span class="comment">// Don't probe if a stream is already open.</span></div>
<div class="line"><a name="l03499"></a><span class="lineno"> 3499</span>  <span class="keywordflow">if</span> ( streams.size() > 0 ) {</div>
<div class="line"><a name="l03500"></a><span class="lineno"> 3500</span>  sprintf(message, <span class="stringliteral">"RtAudio: unable to probe ASIO driver while a stream is open."</span>);</div>
<div class="line"><a name="l03501"></a><span class="lineno"> 3501</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03502"></a><span class="lineno"> 3502</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03503"></a><span class="lineno"> 3503</span>  }</div>
<div class="line"><a name="l03504"></a><span class="lineno"> 3504</span> </div>
<div class="line"><a name="l03505"></a><span class="lineno"> 3505</span>  <span class="keywordflow">if</span> ( !drivers.loadDriver( info->name ) ) {</div>
<div class="line"><a name="l03506"></a><span class="lineno"> 3506</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO error loading driver (%s)."</span>, info->name);</div>
<div class="line"><a name="l03507"></a><span class="lineno"> 3507</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03508"></a><span class="lineno"> 3508</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03509"></a><span class="lineno"> 3509</span>  }</div>
<div class="line"><a name="l03510"></a><span class="lineno"> 3510</span> </div>
<div class="line"><a name="l03511"></a><span class="lineno"> 3511</span>  ASIOError result = ASIOInit( &driverInfo );</div>
<div class="line"><a name="l03512"></a><span class="lineno"> 3512</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03513"></a><span class="lineno"> 3513</span>  <span class="keywordtype">char</span> details[32];</div>
<div class="line"><a name="l03514"></a><span class="lineno"> 3514</span>  <span class="keywordflow">if</span> ( result == ASE_HWMalfunction )</div>
<div class="line"><a name="l03515"></a><span class="lineno"> 3515</span>  sprintf(details, <span class="stringliteral">"hardware malfunction"</span>);</div>
<div class="line"><a name="l03516"></a><span class="lineno"> 3516</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( result == ASE_NoMemory )</div>
<div class="line"><a name="l03517"></a><span class="lineno"> 3517</span>  sprintf(details, <span class="stringliteral">"no memory"</span>);</div>
<div class="line"><a name="l03518"></a><span class="lineno"> 3518</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( result == ASE_NotPresent )</div>
<div class="line"><a name="l03519"></a><span class="lineno"> 3519</span>  sprintf(details, <span class="stringliteral">"driver/hardware not present"</span>);</div>
<div class="line"><a name="l03520"></a><span class="lineno"> 3520</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l03521"></a><span class="lineno"> 3521</span>  sprintf(details, <span class="stringliteral">"unspecified"</span>);</div>
<div class="line"><a name="l03522"></a><span class="lineno"> 3522</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO error (%s) initializing driver (%s)."</span>, details, info->name);</div>
<div class="line"><a name="l03523"></a><span class="lineno"> 3523</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03524"></a><span class="lineno"> 3524</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03525"></a><span class="lineno"> 3525</span>  }</div>
<div class="line"><a name="l03526"></a><span class="lineno"> 3526</span> </div>
<div class="line"><a name="l03527"></a><span class="lineno"> 3527</span>  <span class="comment">// Determine the device channel information.</span></div>
<div class="line"><a name="l03528"></a><span class="lineno"> 3528</span>  <span class="keywordtype">long</span> inputChannels, outputChannels;</div>
<div class="line"><a name="l03529"></a><span class="lineno"> 3529</span>  result = ASIOGetChannels( &inputChannels, &outputChannels );</div>
<div class="line"><a name="l03530"></a><span class="lineno"> 3530</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03531"></a><span class="lineno"> 3531</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03532"></a><span class="lineno"> 3532</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO error getting input/output channel count (%s)."</span>, info->name);</div>
<div class="line"><a name="l03533"></a><span class="lineno"> 3533</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03534"></a><span class="lineno"> 3534</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03535"></a><span class="lineno"> 3535</span>  }</div>
<div class="line"><a name="l03536"></a><span class="lineno"> 3536</span> </div>
<div class="line"><a name="l03537"></a><span class="lineno"> 3537</span>  info->maxOutputChannels = outputChannels;</div>
<div class="line"><a name="l03538"></a><span class="lineno"> 3538</span>  <span class="keywordflow">if</span> ( outputChannels > 0 ) info->minOutputChannels = 1;</div>
<div class="line"><a name="l03539"></a><span class="lineno"> 3539</span> </div>
<div class="line"><a name="l03540"></a><span class="lineno"> 3540</span>  info->maxInputChannels = inputChannels;</div>
<div class="line"><a name="l03541"></a><span class="lineno"> 3541</span>  <span class="keywordflow">if</span> ( inputChannels > 0 ) info->minInputChannels = 1;</div>
<div class="line"><a name="l03542"></a><span class="lineno"> 3542</span> </div>
<div class="line"><a name="l03543"></a><span class="lineno"> 3543</span>  <span class="comment">// If device opens for both playback and capture, we determine the channels.</span></div>
<div class="line"><a name="l03544"></a><span class="lineno"> 3544</span>  <span class="keywordflow">if</span> (info->maxOutputChannels > 0 && info->maxInputChannels > 0) {</div>
<div class="line"><a name="l03545"></a><span class="lineno"> 3545</span>  info->hasDuplexSupport = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03546"></a><span class="lineno"> 3546</span>  info->maxDuplexChannels = (info->maxOutputChannels > info->maxInputChannels) ?</div>
<div class="line"><a name="l03547"></a><span class="lineno"> 3547</span>  info->maxInputChannels : info->maxOutputChannels;</div>
<div class="line"><a name="l03548"></a><span class="lineno"> 3548</span>  info->minDuplexChannels = (info->minOutputChannels > info->minInputChannels) ?</div>
<div class="line"><a name="l03549"></a><span class="lineno"> 3549</span>  info->minInputChannels : info->minOutputChannels;</div>
<div class="line"><a name="l03550"></a><span class="lineno"> 3550</span>  }</div>
<div class="line"><a name="l03551"></a><span class="lineno"> 3551</span> </div>
<div class="line"><a name="l03552"></a><span class="lineno"> 3552</span>  <span class="comment">// Determine the supported sample rates.</span></div>
<div class="line"><a name="l03553"></a><span class="lineno"> 3553</span>  info->nSampleRates = 0;</div>
<div class="line"><a name="l03554"></a><span class="lineno"> 3554</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<<a class="code" href="classRtAudio.html#a7405def6b99ff5d2c0f95d885514d61ca30fa0221e6d99b2845bdff75d1894289">MAX_SAMPLE_RATES</a>; i++) {</div>
<div class="line"><a name="l03555"></a><span class="lineno"> 3555</span>  result = ASIOCanSampleRate( (ASIOSampleRate) SAMPLE_RATES[i] );</div>
<div class="line"><a name="l03556"></a><span class="lineno"> 3556</span>  <span class="keywordflow">if</span> ( result == ASE_OK )</div>
<div class="line"><a name="l03557"></a><span class="lineno"> 3557</span>  info->sampleRates[info->nSampleRates++] = SAMPLE_RATES[i];</div>
<div class="line"><a name="l03558"></a><span class="lineno"> 3558</span>  }</div>
<div class="line"><a name="l03559"></a><span class="lineno"> 3559</span> </div>
<div class="line"><a name="l03560"></a><span class="lineno"> 3560</span>  <span class="keywordflow">if</span> (info->nSampleRates == 0) {</div>
<div class="line"><a name="l03561"></a><span class="lineno"> 3561</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03562"></a><span class="lineno"> 3562</span>  sprintf( message, <span class="stringliteral">"RtAudio: No supported sample rates found for ASIO driver (%s)."</span>, info->name );</div>
<div class="line"><a name="l03563"></a><span class="lineno"> 3563</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03564"></a><span class="lineno"> 3564</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03565"></a><span class="lineno"> 3565</span>  }</div>
<div class="line"><a name="l03566"></a><span class="lineno"> 3566</span> </div>
<div class="line"><a name="l03567"></a><span class="lineno"> 3567</span>  <span class="comment">// Determine supported data types ... just check first channel and assume rest are the same.</span></div>
<div class="line"><a name="l03568"></a><span class="lineno"> 3568</span>  ASIOChannelInfo channelInfo;</div>
<div class="line"><a name="l03569"></a><span class="lineno"> 3569</span>  channelInfo.channel = 0;</div>
<div class="line"><a name="l03570"></a><span class="lineno"> 3570</span>  channelInfo.isInput = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03571"></a><span class="lineno"> 3571</span>  <span class="keywordflow">if</span> ( info->maxInputChannels <= 0 ) channelInfo.isInput = <span class="keyword">false</span>;</div>
<div class="line"><a name="l03572"></a><span class="lineno"> 3572</span>  result = ASIOGetChannelInfo( &channelInfo );</div>
<div class="line"><a name="l03573"></a><span class="lineno"> 3573</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03574"></a><span class="lineno"> 3574</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03575"></a><span class="lineno"> 3575</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO error getting driver (%s) channel information."</span>, info->name);</div>
<div class="line"><a name="l03576"></a><span class="lineno"> 3576</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03577"></a><span class="lineno"> 3577</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03578"></a><span class="lineno"> 3578</span>  }</div>
<div class="line"><a name="l03579"></a><span class="lineno"> 3579</span> </div>
<div class="line"><a name="l03580"></a><span class="lineno"> 3580</span>  <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTInt16MSB || channelInfo.type == ASIOSTInt16LSB )</div>
<div class="line"><a name="l03581"></a><span class="lineno"> 3581</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l03582"></a><span class="lineno"> 3582</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTInt32MSB || channelInfo.type == ASIOSTInt32LSB )</div>
<div class="line"><a name="l03583"></a><span class="lineno"> 3583</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l03584"></a><span class="lineno"> 3584</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTFloat32MSB || channelInfo.type == ASIOSTFloat32LSB )</div>
<div class="line"><a name="l03585"></a><span class="lineno"> 3585</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>;</div>
<div class="line"><a name="l03586"></a><span class="lineno"> 3586</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTFloat64MSB || channelInfo.type == ASIOSTFloat64LSB )</div>
<div class="line"><a name="l03587"></a><span class="lineno"> 3587</span>  info->nativeFormats |= <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>;</div>
<div class="line"><a name="l03588"></a><span class="lineno"> 3588</span> </div>
<div class="line"><a name="l03589"></a><span class="lineno"> 3589</span>  <span class="comment">// Check that we have at least one supported format.</span></div>
<div class="line"><a name="l03590"></a><span class="lineno"> 3590</span>  <span class="keywordflow">if</span> (info->nativeFormats == 0) {</div>
<div class="line"><a name="l03591"></a><span class="lineno"> 3591</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03592"></a><span class="lineno"> 3592</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO driver (%s) data format not supported by RtAudio."</span>,</div>
<div class="line"><a name="l03593"></a><span class="lineno"> 3593</span>  info->name);</div>
<div class="line"><a name="l03594"></a><span class="lineno"> 3594</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03595"></a><span class="lineno"> 3595</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03596"></a><span class="lineno"> 3596</span>  }</div>
<div class="line"><a name="l03597"></a><span class="lineno"> 3597</span> </div>
<div class="line"><a name="l03598"></a><span class="lineno"> 3598</span>  info->probed = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03599"></a><span class="lineno"> 3599</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03600"></a><span class="lineno"> 3600</span> }</div>
<div class="line"><a name="l03601"></a><span class="lineno"> 3601</span> </div>
<div class="line"><a name="l03602"></a><span class="lineno"> 3602</span> <span class="keywordtype">void</span> bufferSwitch(<span class="keywordtype">long</span> index, ASIOBool processNow)</div>
<div class="line"><a name="l03603"></a><span class="lineno"> 3603</span> {</div>
<div class="line"><a name="l03604"></a><span class="lineno"> 3604</span>  <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *<span class="keywordtype">object</span> = (<a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *) asioCallbackInfo-><a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a>;</div>
<div class="line"><a name="l03605"></a><span class="lineno"> 3605</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l03606"></a><span class="lineno"> 3606</span>  object->callbackEvent( asioCallbackInfo-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a>, index, (<span class="keywordtype">void</span> *)<a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, (<span class="keywordtype">void</span> *)<a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l03607"></a><span class="lineno"> 3607</span>  }</div>
<div class="line"><a name="l03608"></a><span class="lineno"> 3608</span>  <span class="keywordflow">catch</span> (<a class="code" href="classRtError.html" title="Exception handling class for RtAudio.">RtError</a> &exception) {</div>
<div class="line"><a name="l03609"></a><span class="lineno"> 3609</span>  fprintf(stderr, <span class="stringliteral">"\nCallback handler error (%s)!\n\n"</span>, exception.<a class="code" href="classRtError.html#aeb19bdd498bb37c935b1dfbc41195114" title="Returns the "thrown" error message string.">getMessage</a>());</div>
<div class="line"><a name="l03610"></a><span class="lineno"> 3610</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03611"></a><span class="lineno"> 3611</span>  }</div>
<div class="line"><a name="l03612"></a><span class="lineno"> 3612</span> </div>
<div class="line"><a name="l03613"></a><span class="lineno"> 3613</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03614"></a><span class="lineno"> 3614</span> }</div>
<div class="line"><a name="l03615"></a><span class="lineno"> 3615</span> </div>
<div class="line"><a name="l03616"></a><span class="lineno"> 3616</span> <span class="keywordtype">void</span> sampleRateChanged(ASIOSampleRate sRate)</div>
<div class="line"><a name="l03617"></a><span class="lineno"> 3617</span> {</div>
<div class="line"><a name="l03618"></a><span class="lineno"> 3618</span>  <span class="comment">// The ASIO documentation says that this usually only happens during</span></div>
<div class="line"><a name="l03619"></a><span class="lineno"> 3619</span>  <span class="comment">// external sync. Audio processing is not stopped by the driver,</span></div>
<div class="line"><a name="l03620"></a><span class="lineno"> 3620</span>  <span class="comment">// actual sample rate might not have even changed, maybe only the</span></div>
<div class="line"><a name="l03621"></a><span class="lineno"> 3621</span>  <span class="comment">// sample rate status of an AES/EBU or S/PDIF digital input at the</span></div>
<div class="line"><a name="l03622"></a><span class="lineno"> 3622</span>  <span class="comment">// audio device.</span></div>
<div class="line"><a name="l03623"></a><span class="lineno"> 3623</span> </div>
<div class="line"><a name="l03624"></a><span class="lineno"> 3624</span>  <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *<span class="keywordtype">object</span> = (<a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *) asioCallbackInfo-><a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a>;</div>
<div class="line"><a name="l03625"></a><span class="lineno"> 3625</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l03626"></a><span class="lineno"> 3626</span>  object-><a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>( asioCallbackInfo-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a> );</div>
<div class="line"><a name="l03627"></a><span class="lineno"> 3627</span>  }</div>
<div class="line"><a name="l03628"></a><span class="lineno"> 3628</span>  <span class="keywordflow">catch</span> (<a class="code" href="classRtError.html" title="Exception handling class for RtAudio.">RtError</a> &exception) {</div>
<div class="line"><a name="l03629"></a><span class="lineno"> 3629</span>  fprintf(stderr, <span class="stringliteral">"\nRtAudio: sampleRateChanged() error (%s)!\n\n"</span>, exception.<a class="code" href="classRtError.html#aeb19bdd498bb37c935b1dfbc41195114" title="Returns the "thrown" error message string.">getMessage</a>());</div>
<div class="line"><a name="l03630"></a><span class="lineno"> 3630</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03631"></a><span class="lineno"> 3631</span>  }</div>
<div class="line"><a name="l03632"></a><span class="lineno"> 3632</span> </div>
<div class="line"><a name="l03633"></a><span class="lineno"> 3633</span>  fprintf(stderr, <span class="stringliteral">"\nRtAudio: ASIO driver reports sample rate changed to %d ... stream stopped!!!"</span>, (<span class="keywordtype">int</span>) sRate);</div>
<div class="line"><a name="l03634"></a><span class="lineno"> 3634</span> }</div>
<div class="line"><a name="l03635"></a><span class="lineno"> 3635</span> </div>
<div class="line"><a name="l03636"></a><span class="lineno"> 3636</span> <span class="keywordtype">long</span> asioMessages(<span class="keywordtype">long</span> selector, <span class="keywordtype">long</span> value, <span class="keywordtype">void</span>* message, <span class="keywordtype">double</span>* opt)</div>
<div class="line"><a name="l03637"></a><span class="lineno"> 3637</span> {</div>
<div class="line"><a name="l03638"></a><span class="lineno"> 3638</span>  <span class="keywordtype">long</span> ret = 0;</div>
<div class="line"><a name="l03639"></a><span class="lineno"> 3639</span>  <span class="keywordflow">switch</span>(selector) {</div>
<div class="line"><a name="l03640"></a><span class="lineno"> 3640</span>  <span class="keywordflow">case</span> kAsioSelectorSupported:</div>
<div class="line"><a name="l03641"></a><span class="lineno"> 3641</span>  <span class="keywordflow">if</span>(value == kAsioResetRequest</div>
<div class="line"><a name="l03642"></a><span class="lineno"> 3642</span>  || value == kAsioEngineVersion</div>
<div class="line"><a name="l03643"></a><span class="lineno"> 3643</span>  || value == kAsioResyncRequest</div>
<div class="line"><a name="l03644"></a><span class="lineno"> 3644</span>  || value == kAsioLatenciesChanged</div>
<div class="line"><a name="l03645"></a><span class="lineno"> 3645</span>  <span class="comment">// The following three were added for ASIO 2.0, you don't</span></div>
<div class="line"><a name="l03646"></a><span class="lineno"> 3646</span>  <span class="comment">// necessarily have to support them.</span></div>
<div class="line"><a name="l03647"></a><span class="lineno"> 3647</span>  || value == kAsioSupportsTimeInfo</div>
<div class="line"><a name="l03648"></a><span class="lineno"> 3648</span>  || value == kAsioSupportsTimeCode</div>
<div class="line"><a name="l03649"></a><span class="lineno"> 3649</span>  || value == kAsioSupportsInputMonitor)</div>
<div class="line"><a name="l03650"></a><span class="lineno"> 3650</span>  ret = 1<a class="code" href="LibXmlEncodings_8hxx.html#a16da33c4777d0dc8de955b3e28b483eb">L</a>;</div>
<div class="line"><a name="l03651"></a><span class="lineno"> 3651</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03652"></a><span class="lineno"> 3652</span>  <span class="keywordflow">case</span> kAsioResetRequest:</div>
<div class="line"><a name="l03653"></a><span class="lineno"> 3653</span>  <span class="comment">// Defer the task and perform the reset of the driver during the</span></div>
<div class="line"><a name="l03654"></a><span class="lineno"> 3654</span>  <span class="comment">// next "safe" situation. You cannot reset the driver right now,</span></div>
<div class="line"><a name="l03655"></a><span class="lineno"> 3655</span>  <span class="comment">// as this code is called from the driver. Reset the driver is</span></div>
<div class="line"><a name="l03656"></a><span class="lineno"> 3656</span>  <span class="comment">// done by completely destruct is. I.e. ASIOStop(),</span></div>
<div class="line"><a name="l03657"></a><span class="lineno"> 3657</span>  <span class="comment">// ASIODisposeBuffers(), Destruction Afterwards you initialize the</span></div>
<div class="line"><a name="l03658"></a><span class="lineno"> 3658</span>  <span class="comment">// driver again.</span></div>
<div class="line"><a name="l03659"></a><span class="lineno"> 3659</span>  fprintf(stderr, <span class="stringliteral">"\nRtAudio: ASIO driver reset requested!!!"</span>);</div>
<div class="line"><a name="l03660"></a><span class="lineno"> 3660</span>  ret = 1<a class="code" href="LibXmlEncodings_8hxx.html#a16da33c4777d0dc8de955b3e28b483eb">L</a>;</div>
<div class="line"><a name="l03661"></a><span class="lineno"> 3661</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03662"></a><span class="lineno"> 3662</span>  <span class="keywordflow">case</span> kAsioResyncRequest:</div>
<div class="line"><a name="l03663"></a><span class="lineno"> 3663</span>  <span class="comment">// This informs the application that the driver encountered some</span></div>
<div class="line"><a name="l03664"></a><span class="lineno"> 3664</span>  <span class="comment">// non-fatal data loss. It is used for synchronization purposes</span></div>
<div class="line"><a name="l03665"></a><span class="lineno"> 3665</span>  <span class="comment">// of different media. Added mainly to work around the Win16Mutex</span></div>
<div class="line"><a name="l03666"></a><span class="lineno"> 3666</span>  <span class="comment">// problems in Windows 95/98 with the Windows Multimedia system,</span></div>
<div class="line"><a name="l03667"></a><span class="lineno"> 3667</span>  <span class="comment">// which could lose data because the Mutex was held too long by</span></div>
<div class="line"><a name="l03668"></a><span class="lineno"> 3668</span>  <span class="comment">// another thread. However a driver can issue it in other</span></div>
<div class="line"><a name="l03669"></a><span class="lineno"> 3669</span>  <span class="comment">// situations, too.</span></div>
<div class="line"><a name="l03670"></a><span class="lineno"> 3670</span>  fprintf(stderr, <span class="stringliteral">"\nRtAudio: ASIO driver resync requested!!!"</span>);</div>
<div class="line"><a name="l03671"></a><span class="lineno"> 3671</span>  ret = 1<a class="code" href="LibXmlEncodings_8hxx.html#a16da33c4777d0dc8de955b3e28b483eb">L</a>;</div>
<div class="line"><a name="l03672"></a><span class="lineno"> 3672</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03673"></a><span class="lineno"> 3673</span>  <span class="keywordflow">case</span> kAsioLatenciesChanged:</div>
<div class="line"><a name="l03674"></a><span class="lineno"> 3674</span>  <span class="comment">// This will inform the host application that the drivers were</span></div>
<div class="line"><a name="l03675"></a><span class="lineno"> 3675</span>  <span class="comment">// latencies changed. Beware, it this does not mean that the</span></div>
<div class="line"><a name="l03676"></a><span class="lineno"> 3676</span>  <span class="comment">// buffer sizes have changed! You might need to update internal</span></div>
<div class="line"><a name="l03677"></a><span class="lineno"> 3677</span>  <span class="comment">// delay data.</span></div>
<div class="line"><a name="l03678"></a><span class="lineno"> 3678</span>  fprintf(stderr, <span class="stringliteral">"\nRtAudio: ASIO driver latency may have changed!!!"</span>);</div>
<div class="line"><a name="l03679"></a><span class="lineno"> 3679</span>  ret = 1<a class="code" href="LibXmlEncodings_8hxx.html#a16da33c4777d0dc8de955b3e28b483eb">L</a>;</div>
<div class="line"><a name="l03680"></a><span class="lineno"> 3680</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03681"></a><span class="lineno"> 3681</span>  <span class="keywordflow">case</span> kAsioEngineVersion:</div>
<div class="line"><a name="l03682"></a><span class="lineno"> 3682</span>  <span class="comment">// Return the supported ASIO version of the host application. If</span></div>
<div class="line"><a name="l03683"></a><span class="lineno"> 3683</span>  <span class="comment">// a host application does not implement this selector, ASIO 1.0</span></div>
<div class="line"><a name="l03684"></a><span class="lineno"> 3684</span>  <span class="comment">// is assumed by the driver.</span></div>
<div class="line"><a name="l03685"></a><span class="lineno"> 3685</span>  ret = 2<a class="code" href="LibXmlEncodings_8hxx.html#a16da33c4777d0dc8de955b3e28b483eb">L</a>;</div>
<div class="line"><a name="l03686"></a><span class="lineno"> 3686</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03687"></a><span class="lineno"> 3687</span>  <span class="keywordflow">case</span> kAsioSupportsTimeInfo:</div>
<div class="line"><a name="l03688"></a><span class="lineno"> 3688</span>  <span class="comment">// Informs the driver whether the</span></div>
<div class="line"><a name="l03689"></a><span class="lineno"> 3689</span>  <span class="comment">// asioCallbacks.bufferSwitchTimeInfo() callback is supported.</span></div>
<div class="line"><a name="l03690"></a><span class="lineno"> 3690</span>  <span class="comment">// For compatibility with ASIO 1.0 drivers the host application</span></div>
<div class="line"><a name="l03691"></a><span class="lineno"> 3691</span>  <span class="comment">// should always support the "old" bufferSwitch method, too.</span></div>
<div class="line"><a name="l03692"></a><span class="lineno"> 3692</span>  ret = 0;</div>
<div class="line"><a name="l03693"></a><span class="lineno"> 3693</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03694"></a><span class="lineno"> 3694</span>  <span class="keywordflow">case</span> kAsioSupportsTimeCode:</div>
<div class="line"><a name="l03695"></a><span class="lineno"> 3695</span>  <span class="comment">// Informs the driver wether application is interested in time</span></div>
<div class="line"><a name="l03696"></a><span class="lineno"> 3696</span>  <span class="comment">// code info. If an application does not need to know about time</span></div>
<div class="line"><a name="l03697"></a><span class="lineno"> 3697</span>  <span class="comment">// code, the driver has less work to do.</span></div>
<div class="line"><a name="l03698"></a><span class="lineno"> 3698</span>  ret = 0;</div>
<div class="line"><a name="l03699"></a><span class="lineno"> 3699</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03700"></a><span class="lineno"> 3700</span>  }</div>
<div class="line"><a name="l03701"></a><span class="lineno"> 3701</span>  <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l03702"></a><span class="lineno"> 3702</span> }</div>
<div class="line"><a name="l03703"></a><span class="lineno"> 3703</span> </div>
<div class="line"><a name="l03704"></a><span class="lineno"> 3704</span> <span class="keywordtype">bool</span> RtAudio :: probeDeviceOpen(<span class="keywordtype">int</span> device, RTAUDIO_STREAM *stream,</div>
<div class="line"><a name="l03705"></a><span class="lineno"> 3705</span>  STREAM_MODE mode, <span class="keywordtype">int</span> channels, </div>
<div class="line"><a name="l03706"></a><span class="lineno"> 3706</span>  <span class="keywordtype">int</span> sampleRate, RTAUDIO_FORMAT format,</div>
<div class="line"><a name="l03707"></a><span class="lineno"> 3707</span>  <span class="keywordtype">int</span> *bufferSize, <span class="keywordtype">int</span> numberOfBuffers)</div>
<div class="line"><a name="l03708"></a><span class="lineno"> 3708</span> {</div>
<div class="line"><a name="l03709"></a><span class="lineno"> 3709</span>  <span class="comment">// Don't attempt to load another driver if a stream is already open.</span></div>
<div class="line"><a name="l03710"></a><span class="lineno"> 3710</span>  <span class="keywordflow">if</span> ( streams.size() > 0 ) {</div>
<div class="line"><a name="l03711"></a><span class="lineno"> 3711</span>  sprintf(message, <span class="stringliteral">"RtAudio: unable to load ASIO driver while a stream is open."</span>);</div>
<div class="line"><a name="l03712"></a><span class="lineno"> 3712</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l03713"></a><span class="lineno"> 3713</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03714"></a><span class="lineno"> 3714</span>  }</div>
<div class="line"><a name="l03715"></a><span class="lineno"> 3715</span> </div>
<div class="line"><a name="l03716"></a><span class="lineno"> 3716</span>  <span class="comment">// For ASIO, a duplex stream MUST use the same driver.</span></div>
<div class="line"><a name="l03717"></a><span class="lineno"> 3717</span>  <span class="keywordflow">if</span> ( mode == INPUT && stream->mode == OUTPUT && stream->device[0] != device ) {</div>
<div class="line"><a name="l03718"></a><span class="lineno"> 3718</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO duplex stream must use the same device for input and output."</span>);</div>
<div class="line"><a name="l03719"></a><span class="lineno"> 3719</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l03720"></a><span class="lineno"> 3720</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03721"></a><span class="lineno"> 3721</span>  }</div>
<div class="line"><a name="l03722"></a><span class="lineno"> 3722</span> </div>
<div class="line"><a name="l03723"></a><span class="lineno"> 3723</span>  <span class="comment">// Only load the driver once for duplex stream.</span></div>
<div class="line"><a name="l03724"></a><span class="lineno"> 3724</span>  ASIOError result;</div>
<div class="line"><a name="l03725"></a><span class="lineno"> 3725</span>  <span class="keywordflow">if</span> ( mode != INPUT || stream->mode != OUTPUT ) {</div>
<div class="line"><a name="l03726"></a><span class="lineno"> 3726</span>  <span class="keywordflow">if</span> ( !drivers.loadDriver( devices[device].name ) ) {</div>
<div class="line"><a name="l03727"></a><span class="lineno"> 3727</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO error loading driver (%s)."</span>, devices[device].name);</div>
<div class="line"><a name="l03728"></a><span class="lineno"> 3728</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03729"></a><span class="lineno"> 3729</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03730"></a><span class="lineno"> 3730</span>  }</div>
<div class="line"><a name="l03731"></a><span class="lineno"> 3731</span> </div>
<div class="line"><a name="l03732"></a><span class="lineno"> 3732</span>  result = ASIOInit( &driverInfo );</div>
<div class="line"><a name="l03733"></a><span class="lineno"> 3733</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03734"></a><span class="lineno"> 3734</span>  <span class="keywordtype">char</span> details[32];</div>
<div class="line"><a name="l03735"></a><span class="lineno"> 3735</span>  <span class="keywordflow">if</span> ( result == ASE_HWMalfunction )</div>
<div class="line"><a name="l03736"></a><span class="lineno"> 3736</span>  sprintf(details, <span class="stringliteral">"hardware malfunction"</span>);</div>
<div class="line"><a name="l03737"></a><span class="lineno"> 3737</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( result == ASE_NoMemory )</div>
<div class="line"><a name="l03738"></a><span class="lineno"> 3738</span>  sprintf(details, <span class="stringliteral">"no memory"</span>);</div>
<div class="line"><a name="l03739"></a><span class="lineno"> 3739</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( result == ASE_NotPresent )</div>
<div class="line"><a name="l03740"></a><span class="lineno"> 3740</span>  sprintf(details, <span class="stringliteral">"driver/hardware not present"</span>);</div>
<div class="line"><a name="l03741"></a><span class="lineno"> 3741</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l03742"></a><span class="lineno"> 3742</span>  sprintf(details, <span class="stringliteral">"unspecified"</span>);</div>
<div class="line"><a name="l03743"></a><span class="lineno"> 3743</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO error (%s) initializing driver (%s)."</span>, details, devices[device].name);</div>
<div class="line"><a name="l03744"></a><span class="lineno"> 3744</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03745"></a><span class="lineno"> 3745</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03746"></a><span class="lineno"> 3746</span>  }</div>
<div class="line"><a name="l03747"></a><span class="lineno"> 3747</span>  }</div>
<div class="line"><a name="l03748"></a><span class="lineno"> 3748</span> </div>
<div class="line"><a name="l03749"></a><span class="lineno"> 3749</span>  <span class="comment">// Check the device channel count.</span></div>
<div class="line"><a name="l03750"></a><span class="lineno"> 3750</span>  <span class="keywordtype">long</span> inputChannels, outputChannels;</div>
<div class="line"><a name="l03751"></a><span class="lineno"> 3751</span>  result = ASIOGetChannels( &inputChannels, &outputChannels );</div>
<div class="line"><a name="l03752"></a><span class="lineno"> 3752</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03753"></a><span class="lineno"> 3753</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03754"></a><span class="lineno"> 3754</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO error getting input/output channel count (%s)."</span>,</div>
<div class="line"><a name="l03755"></a><span class="lineno"> 3755</span>  devices[device].name);</div>
<div class="line"><a name="l03756"></a><span class="lineno"> 3756</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03757"></a><span class="lineno"> 3757</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03758"></a><span class="lineno"> 3758</span>  }</div>
<div class="line"><a name="l03759"></a><span class="lineno"> 3759</span> </div>
<div class="line"><a name="l03760"></a><span class="lineno"> 3760</span>  <span class="keywordflow">if</span> ( ( mode == OUTPUT && channels > outputChannels) ||</div>
<div class="line"><a name="l03761"></a><span class="lineno"> 3761</span>  ( mode == INPUT && channels > inputChannels) ) {</div>
<div class="line"><a name="l03762"></a><span class="lineno"> 3762</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03763"></a><span class="lineno"> 3763</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO driver (%s) does not support requested channel count (%d)."</span>,</div>
<div class="line"><a name="l03764"></a><span class="lineno"> 3764</span>  devices[device].name, channels);</div>
<div class="line"><a name="l03765"></a><span class="lineno"> 3765</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03766"></a><span class="lineno"> 3766</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03767"></a><span class="lineno"> 3767</span>  }</div>
<div class="line"><a name="l03768"></a><span class="lineno"> 3768</span>  stream->nDeviceChannels[mode] = channels;</div>
<div class="line"><a name="l03769"></a><span class="lineno"> 3769</span>  stream->nUserChannels[mode] = channels;</div>
<div class="line"><a name="l03770"></a><span class="lineno"> 3770</span> </div>
<div class="line"><a name="l03771"></a><span class="lineno"> 3771</span>  <span class="comment">// Verify the sample rate is supported.</span></div>
<div class="line"><a name="l03772"></a><span class="lineno"> 3772</span>  result = ASIOCanSampleRate( (ASIOSampleRate) sampleRate );</div>
<div class="line"><a name="l03773"></a><span class="lineno"> 3773</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03774"></a><span class="lineno"> 3774</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03775"></a><span class="lineno"> 3775</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO driver (%s) does not support requested sample rate (%d)."</span>,</div>
<div class="line"><a name="l03776"></a><span class="lineno"> 3776</span>  devices[device].name, sampleRate);</div>
<div class="line"><a name="l03777"></a><span class="lineno"> 3777</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03778"></a><span class="lineno"> 3778</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03779"></a><span class="lineno"> 3779</span>  }</div>
<div class="line"><a name="l03780"></a><span class="lineno"> 3780</span> </div>
<div class="line"><a name="l03781"></a><span class="lineno"> 3781</span>  <span class="comment">// Set the sample rate.</span></div>
<div class="line"><a name="l03782"></a><span class="lineno"> 3782</span>  result = ASIOSetSampleRate( (ASIOSampleRate) sampleRate );</div>
<div class="line"><a name="l03783"></a><span class="lineno"> 3783</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03784"></a><span class="lineno"> 3784</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03785"></a><span class="lineno"> 3785</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO driver (%s) error setting sample rate (%d)."</span>,</div>
<div class="line"><a name="l03786"></a><span class="lineno"> 3786</span>  devices[device].name, sampleRate);</div>
<div class="line"><a name="l03787"></a><span class="lineno"> 3787</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03788"></a><span class="lineno"> 3788</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03789"></a><span class="lineno"> 3789</span>  }</div>
<div class="line"><a name="l03790"></a><span class="lineno"> 3790</span> </div>
<div class="line"><a name="l03791"></a><span class="lineno"> 3791</span>  <span class="comment">// Determine the driver data type.</span></div>
<div class="line"><a name="l03792"></a><span class="lineno"> 3792</span>  ASIOChannelInfo channelInfo;</div>
<div class="line"><a name="l03793"></a><span class="lineno"> 3793</span>  channelInfo.channel = 0;</div>
<div class="line"><a name="l03794"></a><span class="lineno"> 3794</span>  <span class="keywordflow">if</span> ( mode == OUTPUT ) channelInfo.isInput = <span class="keyword">false</span>;</div>
<div class="line"><a name="l03795"></a><span class="lineno"> 3795</span>  <span class="keywordflow">else</span> channelInfo.isInput = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03796"></a><span class="lineno"> 3796</span>  result = ASIOGetChannelInfo( &channelInfo );</div>
<div class="line"><a name="l03797"></a><span class="lineno"> 3797</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03798"></a><span class="lineno"> 3798</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03799"></a><span class="lineno"> 3799</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO driver (%s) error getting data format."</span>,</div>
<div class="line"><a name="l03800"></a><span class="lineno"> 3800</span>  devices[device].name);</div>
<div class="line"><a name="l03801"></a><span class="lineno"> 3801</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03802"></a><span class="lineno"> 3802</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03803"></a><span class="lineno"> 3803</span>  }</div>
<div class="line"><a name="l03804"></a><span class="lineno"> 3804</span> </div>
<div class="line"><a name="l03805"></a><span class="lineno"> 3805</span>  <span class="comment">// Assuming WINDOWS host is always little-endian.</span></div>
<div class="line"><a name="l03806"></a><span class="lineno"> 3806</span>  stream->doByteSwap[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l03807"></a><span class="lineno"> 3807</span>  stream->userFormat = format;</div>
<div class="line"><a name="l03808"></a><span class="lineno"> 3808</span>  stream->deviceFormat[mode] = 0;</div>
<div class="line"><a name="l03809"></a><span class="lineno"> 3809</span>  <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTInt16MSB || channelInfo.type == ASIOSTInt16LSB ) {</div>
<div class="line"><a name="l03810"></a><span class="lineno"> 3810</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l03811"></a><span class="lineno"> 3811</span>  <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTInt16MSB ) stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03812"></a><span class="lineno"> 3812</span>  }</div>
<div class="line"><a name="l03813"></a><span class="lineno"> 3813</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTInt32MSB || channelInfo.type == ASIOSTInt32LSB ) {</div>
<div class="line"><a name="l03814"></a><span class="lineno"> 3814</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>;</div>
<div class="line"><a name="l03815"></a><span class="lineno"> 3815</span>  <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTInt32MSB ) stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03816"></a><span class="lineno"> 3816</span>  }</div>
<div class="line"><a name="l03817"></a><span class="lineno"> 3817</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTFloat32MSB || channelInfo.type == ASIOSTFloat32LSB ) {</div>
<div class="line"><a name="l03818"></a><span class="lineno"> 3818</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>;</div>
<div class="line"><a name="l03819"></a><span class="lineno"> 3819</span>  <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTFloat32MSB ) stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03820"></a><span class="lineno"> 3820</span>  }</div>
<div class="line"><a name="l03821"></a><span class="lineno"> 3821</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTFloat64MSB || channelInfo.type == ASIOSTFloat64LSB ) {</div>
<div class="line"><a name="l03822"></a><span class="lineno"> 3822</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>;</div>
<div class="line"><a name="l03823"></a><span class="lineno"> 3823</span>  <span class="keywordflow">if</span> ( channelInfo.type == ASIOSTFloat64MSB ) stream->doByteSwap[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03824"></a><span class="lineno"> 3824</span>  }</div>
<div class="line"><a name="l03825"></a><span class="lineno"> 3825</span> </div>
<div class="line"><a name="l03826"></a><span class="lineno"> 3826</span>  <span class="keywordflow">if</span> ( stream->deviceFormat[mode] == 0 ) {</div>
<div class="line"><a name="l03827"></a><span class="lineno"> 3827</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03828"></a><span class="lineno"> 3828</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO driver (%s) data format not supported by RtAudio."</span>,</div>
<div class="line"><a name="l03829"></a><span class="lineno"> 3829</span>  devices[device].name);</div>
<div class="line"><a name="l03830"></a><span class="lineno"> 3830</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03831"></a><span class="lineno"> 3831</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03832"></a><span class="lineno"> 3832</span>  }</div>
<div class="line"><a name="l03833"></a><span class="lineno"> 3833</span> </div>
<div class="line"><a name="l03834"></a><span class="lineno"> 3834</span>  <span class="comment">// Set the buffer size. For a duplex stream, this will end up</span></div>
<div class="line"><a name="l03835"></a><span class="lineno"> 3835</span>  <span class="comment">// setting the buffer size based on the input constraints, which</span></div>
<div class="line"><a name="l03836"></a><span class="lineno"> 3836</span>  <span class="comment">// should be ok.</span></div>
<div class="line"><a name="l03837"></a><span class="lineno"> 3837</span>  <span class="keywordtype">long</span> minSize, maxSize, preferSize, granularity;</div>
<div class="line"><a name="l03838"></a><span class="lineno"> 3838</span>  result = ASIOGetBufferSize( &minSize, &maxSize, &preferSize, &granularity );</div>
<div class="line"><a name="l03839"></a><span class="lineno"> 3839</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03840"></a><span class="lineno"> 3840</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03841"></a><span class="lineno"> 3841</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO driver (%s) error getting buffer size."</span>,</div>
<div class="line"><a name="l03842"></a><span class="lineno"> 3842</span>  devices[device].name);</div>
<div class="line"><a name="l03843"></a><span class="lineno"> 3843</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03844"></a><span class="lineno"> 3844</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03845"></a><span class="lineno"> 3845</span>  }</div>
<div class="line"><a name="l03846"></a><span class="lineno"> 3846</span> </div>
<div class="line"><a name="l03847"></a><span class="lineno"> 3847</span>  <span class="keywordflow">if</span> ( *bufferSize < minSize ) *bufferSize = minSize;</div>
<div class="line"><a name="l03848"></a><span class="lineno"> 3848</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( *bufferSize > maxSize ) *bufferSize = maxSize;</div>
<div class="line"><a name="l03849"></a><span class="lineno"> 3849</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( granularity == -1 ) {</div>
<div class="line"><a name="l03850"></a><span class="lineno"> 3850</span>  <span class="comment">// Make sure bufferSize is a power of two.</span></div>
<div class="line"><a name="l03851"></a><span class="lineno"> 3851</span>  <span class="keywordtype">double</span> power = log10( *bufferSize ) / log10( 2.0 );</div>
<div class="line"><a name="l03852"></a><span class="lineno"> 3852</span>  *bufferSize = pow( 2.0, floor(power+0.5) );</div>
<div class="line"><a name="l03853"></a><span class="lineno"> 3853</span>  <span class="keywordflow">if</span> ( *bufferSize < minSize ) *bufferSize = minSize;</div>
<div class="line"><a name="l03854"></a><span class="lineno"> 3854</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( *bufferSize > maxSize ) *bufferSize = maxSize;</div>
<div class="line"><a name="l03855"></a><span class="lineno"> 3855</span>  <span class="keywordflow">else</span> *bufferSize = preferSize;</div>
<div class="line"><a name="l03856"></a><span class="lineno"> 3856</span>  }</div>
<div class="line"><a name="l03857"></a><span class="lineno"> 3857</span> </div>
<div class="line"><a name="l03858"></a><span class="lineno"> 3858</span>  <span class="keywordflow">if</span> ( mode == INPUT && stream->mode == OUTPUT && stream->bufferSize != *bufferSize )</div>
<div class="line"><a name="l03859"></a><span class="lineno"> 3859</span>  cout << <span class="stringliteral">"possible input/output buffersize discrepancy"</span> << endl;</div>
<div class="line"><a name="l03860"></a><span class="lineno"> 3860</span> </div>
<div class="line"><a name="l03861"></a><span class="lineno"> 3861</span>  stream->bufferSize = *bufferSize;</div>
<div class="line"><a name="l03862"></a><span class="lineno"> 3862</span>  stream->nBuffers = 2;</div>
<div class="line"><a name="l03863"></a><span class="lineno"> 3863</span> </div>
<div class="line"><a name="l03864"></a><span class="lineno"> 3864</span>  <span class="comment">// ASIO always uses deinterleaved channels.</span></div>
<div class="line"><a name="l03865"></a><span class="lineno"> 3865</span>  stream->deInterleave[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03866"></a><span class="lineno"> 3866</span> </div>
<div class="line"><a name="l03867"></a><span class="lineno"> 3867</span>  <span class="comment">// Create the ASIO internal buffers. Since RtAudio sets up input</span></div>
<div class="line"><a name="l03868"></a><span class="lineno"> 3868</span>  <span class="comment">// and output separately, we'll have to dispose of previously</span></div>
<div class="line"><a name="l03869"></a><span class="lineno"> 3869</span>  <span class="comment">// created output buffers for a duplex stream.</span></div>
<div class="line"><a name="l03870"></a><span class="lineno"> 3870</span>  <span class="keywordflow">if</span> ( mode == INPUT && stream->mode == OUTPUT ) {</div>
<div class="line"><a name="l03871"></a><span class="lineno"> 3871</span>  free(stream->callbackInfo.buffers);</div>
<div class="line"><a name="l03872"></a><span class="lineno"> 3872</span>  result = ASIODisposeBuffers();</div>
<div class="line"><a name="l03873"></a><span class="lineno"> 3873</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03874"></a><span class="lineno"> 3874</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03875"></a><span class="lineno"> 3875</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO driver (%s) error disposing previously allocated buffers."</span>,</div>
<div class="line"><a name="l03876"></a><span class="lineno"> 3876</span>  devices[device].name);</div>
<div class="line"><a name="l03877"></a><span class="lineno"> 3877</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03878"></a><span class="lineno"> 3878</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03879"></a><span class="lineno"> 3879</span>  }</div>
<div class="line"><a name="l03880"></a><span class="lineno"> 3880</span>  }</div>
<div class="line"><a name="l03881"></a><span class="lineno"> 3881</span> </div>
<div class="line"><a name="l03882"></a><span class="lineno"> 3882</span>  <span class="comment">// Allocate, initialize, and save the bufferInfos in our stream callbackInfo structure.</span></div>
<div class="line"><a name="l03883"></a><span class="lineno"> 3883</span>  <span class="keywordtype">int</span> i, nChannels = stream->nDeviceChannels[0] + stream->nDeviceChannels[1];</div>
<div class="line"><a name="l03884"></a><span class="lineno"> 3884</span>  stream->callbackInfo.buffers = 0;</div>
<div class="line"><a name="l03885"></a><span class="lineno"> 3885</span>  ASIOBufferInfo *bufferInfos = (ASIOBufferInfo *) malloc( nChannels * <span class="keyword">sizeof</span>(ASIOBufferInfo) );</div>
<div class="line"><a name="l03886"></a><span class="lineno"> 3886</span>  stream->callbackInfo.buffers = (<span class="keywordtype">void</span> *) bufferInfos;</div>
<div class="line"><a name="l03887"></a><span class="lineno"> 3887</span>  ASIOBufferInfo *infos = bufferInfos;</div>
<div class="line"><a name="l03888"></a><span class="lineno"> 3888</span>  <span class="keywordflow">for</span> ( i=0; i<stream->nDeviceChannels[1]; i++, infos++ ) {</div>
<div class="line"><a name="l03889"></a><span class="lineno"> 3889</span>  infos->isInput = ASIOTrue;</div>
<div class="line"><a name="l03890"></a><span class="lineno"> 3890</span>  infos->channelNum = i;</div>
<div class="line"><a name="l03891"></a><span class="lineno"> 3891</span>  infos->buffers[0] = infos->buffers[1] = 0;</div>
<div class="line"><a name="l03892"></a><span class="lineno"> 3892</span>  }</div>
<div class="line"><a name="l03893"></a><span class="lineno"> 3893</span> </div>
<div class="line"><a name="l03894"></a><span class="lineno"> 3894</span>  <span class="keywordflow">for</span> ( i=0; i<stream->nDeviceChannels[0]; i++, infos++ ) {</div>
<div class="line"><a name="l03895"></a><span class="lineno"> 3895</span>  infos->isInput = ASIOFalse;</div>
<div class="line"><a name="l03896"></a><span class="lineno"> 3896</span>  infos->channelNum = i;</div>
<div class="line"><a name="l03897"></a><span class="lineno"> 3897</span>  infos->buffers[0] = infos->buffers[1] = 0;</div>
<div class="line"><a name="l03898"></a><span class="lineno"> 3898</span>  }</div>
<div class="line"><a name="l03899"></a><span class="lineno"> 3899</span> </div>
<div class="line"><a name="l03900"></a><span class="lineno"> 3900</span>  <span class="comment">// Set up the ASIO callback structure and create the ASIO data buffers.</span></div>
<div class="line"><a name="l03901"></a><span class="lineno"> 3901</span>  asioCallbacks.bufferSwitch = &bufferSwitch;</div>
<div class="line"><a name="l03902"></a><span class="lineno"> 3902</span>  asioCallbacks.sampleRateDidChange = &sampleRateChanged;</div>
<div class="line"><a name="l03903"></a><span class="lineno"> 3903</span>  asioCallbacks.asioMessage = &asioMessages;</div>
<div class="line"><a name="l03904"></a><span class="lineno"> 3904</span>  asioCallbacks.bufferSwitchTimeInfo = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l03905"></a><span class="lineno"> 3905</span>  result = ASIOCreateBuffers( bufferInfos, nChannels, stream->bufferSize, &asioCallbacks);</div>
<div class="line"><a name="l03906"></a><span class="lineno"> 3906</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l03907"></a><span class="lineno"> 3907</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03908"></a><span class="lineno"> 3908</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO driver (%s) error creating buffers."</span>,</div>
<div class="line"><a name="l03909"></a><span class="lineno"> 3909</span>  devices[device].name);</div>
<div class="line"><a name="l03910"></a><span class="lineno"> 3910</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l03911"></a><span class="lineno"> 3911</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03912"></a><span class="lineno"> 3912</span>  }</div>
<div class="line"><a name="l03913"></a><span class="lineno"> 3913</span> </div>
<div class="line"><a name="l03914"></a><span class="lineno"> 3914</span>  <span class="comment">// Set flags for buffer conversion.</span></div>
<div class="line"><a name="l03915"></a><span class="lineno"> 3915</span>  stream->doConvertBuffer[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l03916"></a><span class="lineno"> 3916</span>  <span class="keywordflow">if</span> (stream->userFormat != stream->deviceFormat[mode])</div>
<div class="line"><a name="l03917"></a><span class="lineno"> 3917</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03918"></a><span class="lineno"> 3918</span>  <span class="keywordflow">if</span> (stream->nUserChannels[mode] < stream->nDeviceChannels[mode])</div>
<div class="line"><a name="l03919"></a><span class="lineno"> 3919</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03920"></a><span class="lineno"> 3920</span>  <span class="keywordflow">if</span> (stream->nUserChannels[mode] > 1 && stream->deInterleave[mode])</div>
<div class="line"><a name="l03921"></a><span class="lineno"> 3921</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03922"></a><span class="lineno"> 3922</span> </div>
<div class="line"><a name="l03923"></a><span class="lineno"> 3923</span>  <span class="comment">// Allocate necessary internal buffers</span></div>
<div class="line"><a name="l03924"></a><span class="lineno"> 3924</span>  <span class="keywordflow">if</span> ( stream->nUserChannels[0] != stream->nUserChannels[1] ) {</div>
<div class="line"><a name="l03925"></a><span class="lineno"> 3925</span> </div>
<div class="line"><a name="l03926"></a><span class="lineno"> 3926</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l03927"></a><span class="lineno"> 3927</span>  <span class="keywordflow">if</span> (stream->nUserChannels[0] >= stream->nUserChannels[1])</div>
<div class="line"><a name="l03928"></a><span class="lineno"> 3928</span>  buffer_bytes = stream->nUserChannels[0];</div>
<div class="line"><a name="l03929"></a><span class="lineno"> 3929</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l03930"></a><span class="lineno"> 3930</span>  buffer_bytes = stream->nUserChannels[1];</div>
<div class="line"><a name="l03931"></a><span class="lineno"> 3931</span> </div>
<div class="line"><a name="l03932"></a><span class="lineno"> 3932</span>  buffer_bytes *= *bufferSize * formatBytes(stream->userFormat);</div>
<div class="line"><a name="l03933"></a><span class="lineno"> 3933</span>  <span class="keywordflow">if</span> (stream->userBuffer) free(stream->userBuffer);</div>
<div class="line"><a name="l03934"></a><span class="lineno"> 3934</span>  stream->userBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l03935"></a><span class="lineno"> 3935</span>  <span class="keywordflow">if</span> (stream->userBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l03936"></a><span class="lineno"> 3936</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l03937"></a><span class="lineno"> 3937</span>  }</div>
<div class="line"><a name="l03938"></a><span class="lineno"> 3938</span> </div>
<div class="line"><a name="l03939"></a><span class="lineno"> 3939</span>  <span class="keywordflow">if</span> ( stream->doConvertBuffer[mode] ) {</div>
<div class="line"><a name="l03940"></a><span class="lineno"> 3940</span> </div>
<div class="line"><a name="l03941"></a><span class="lineno"> 3941</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l03942"></a><span class="lineno"> 3942</span>  <span class="keywordtype">bool</span> makeBuffer = <span class="keyword">true</span>;</div>
<div class="line"><a name="l03943"></a><span class="lineno"> 3943</span>  <span class="keywordflow">if</span> ( mode == OUTPUT )</div>
<div class="line"><a name="l03944"></a><span class="lineno"> 3944</span>  buffer_bytes = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l03945"></a><span class="lineno"> 3945</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l03946"></a><span class="lineno"> 3946</span>  buffer_bytes = stream->nDeviceChannels[1] * formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l03947"></a><span class="lineno"> 3947</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && stream->deviceBuffer ) {</div>
<div class="line"><a name="l03948"></a><span class="lineno"> 3948</span>  <span class="keywordtype">long</span> bytes_out = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l03949"></a><span class="lineno"> 3949</span>  <span class="keywordflow">if</span> ( buffer_bytes < bytes_out ) makeBuffer = <span class="keyword">false</span>;</div>
<div class="line"><a name="l03950"></a><span class="lineno"> 3950</span>  }</div>
<div class="line"><a name="l03951"></a><span class="lineno"> 3951</span>  }</div>
<div class="line"><a name="l03952"></a><span class="lineno"> 3952</span> </div>
<div class="line"><a name="l03953"></a><span class="lineno"> 3953</span>  <span class="keywordflow">if</span> ( makeBuffer ) {</div>
<div class="line"><a name="l03954"></a><span class="lineno"> 3954</span>  buffer_bytes *= *bufferSize;</div>
<div class="line"><a name="l03955"></a><span class="lineno"> 3955</span>  <span class="keywordflow">if</span> (stream->deviceBuffer) free(stream->deviceBuffer);</div>
<div class="line"><a name="l03956"></a><span class="lineno"> 3956</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l03957"></a><span class="lineno"> 3957</span>  <span class="keywordflow">if</span> (stream->deviceBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l03958"></a><span class="lineno"> 3958</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l03959"></a><span class="lineno"> 3959</span>  }</div>
<div class="line"><a name="l03960"></a><span class="lineno"> 3960</span>  }</div>
<div class="line"><a name="l03961"></a><span class="lineno"> 3961</span> </div>
<div class="line"><a name="l03962"></a><span class="lineno"> 3962</span>  stream->device[mode] = device;</div>
<div class="line"><a name="l03963"></a><span class="lineno"> 3963</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l03964"></a><span class="lineno"> 3964</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && mode == INPUT )</div>
<div class="line"><a name="l03965"></a><span class="lineno"> 3965</span>  <span class="comment">// We had already set up an output stream.</span></div>
<div class="line"><a name="l03966"></a><span class="lineno"> 3966</span>  stream->mode = DUPLEX;</div>
<div class="line"><a name="l03967"></a><span class="lineno"> 3967</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l03968"></a><span class="lineno"> 3968</span>  stream->mode = mode;</div>
<div class="line"><a name="l03969"></a><span class="lineno"> 3969</span>  stream->sampleRate = sampleRate;</div>
<div class="line"><a name="l03970"></a><span class="lineno"> 3970</span>  asioCallbackInfo = &stream->callbackInfo;</div>
<div class="line"><a name="l03971"></a><span class="lineno"> 3971</span>  stream->callbackInfo.<a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a> = (<span class="keywordtype">void</span> *) <span class="keyword">this</span>;</div>
<div class="line"><a name="l03972"></a><span class="lineno"> 3972</span>  stream->callbackInfo.waitTime = (<span class="keywordtype">unsigned</span> long) (200.0 * stream->bufferSize / stream->sampleRate);</div>
<div class="line"><a name="l03973"></a><span class="lineno"> 3973</span> </div>
<div class="line"><a name="l03974"></a><span class="lineno"> 3974</span>  <span class="keywordflow">return</span> SUCCESS;</div>
<div class="line"><a name="l03975"></a><span class="lineno"> 3975</span> </div>
<div class="line"><a name="l03976"></a><span class="lineno"> 3976</span>  memory_error:</div>
<div class="line"><a name="l03977"></a><span class="lineno"> 3977</span>  ASIODisposeBuffers();</div>
<div class="line"><a name="l03978"></a><span class="lineno"> 3978</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l03979"></a><span class="lineno"> 3979</span> </div>
<div class="line"><a name="l03980"></a><span class="lineno"> 3980</span>  <span class="keywordflow">if</span> (stream->callbackInfo.buffers)</div>
<div class="line"><a name="l03981"></a><span class="lineno"> 3981</span>  free(stream->callbackInfo.buffers);</div>
<div class="line"><a name="l03982"></a><span class="lineno"> 3982</span>  stream->callbackInfo.buffers = 0;</div>
<div class="line"><a name="l03983"></a><span class="lineno"> 3983</span> </div>
<div class="line"><a name="l03984"></a><span class="lineno"> 3984</span>  <span class="keywordflow">if</span> (stream->userBuffer) {</div>
<div class="line"><a name="l03985"></a><span class="lineno"> 3985</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l03986"></a><span class="lineno"> 3986</span>  stream->userBuffer = 0;</div>
<div class="line"><a name="l03987"></a><span class="lineno"> 3987</span>  }</div>
<div class="line"><a name="l03988"></a><span class="lineno"> 3988</span>  sprintf(message, <span class="stringliteral">"RtAudio: error allocating buffer memory (%s)."</span>,</div>
<div class="line"><a name="l03989"></a><span class="lineno"> 3989</span>  devices[device].name);</div>
<div class="line"><a name="l03990"></a><span class="lineno"> 3990</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l03991"></a><span class="lineno"> 3991</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l03992"></a><span class="lineno"> 3992</span> }</div>
<div class="line"><a name="l03993"></a><span class="lineno"> 3993</span> </div>
<div class="line"><a name="l03994"></a><span class="lineno"> 3994</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#aebae35586a358dd4c6826801031479e1" title="A public method which cancels a callback process and function for a given stream.">RtAudio :: cancelStreamCallback</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l03995"></a><span class="lineno"> 3995</span> {</div>
<div class="line"><a name="l03996"></a><span class="lineno"> 3996</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l03997"></a><span class="lineno"> 3997</span> </div>
<div class="line"><a name="l03998"></a><span class="lineno"> 3998</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l03999"></a><span class="lineno"> 3999</span> </div>
<div class="line"><a name="l04000"></a><span class="lineno"> 4000</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l04001"></a><span class="lineno"> 4001</span>  <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>( streamId );</div>
<div class="line"><a name="l04002"></a><span class="lineno"> 4002</span> </div>
<div class="line"><a name="l04003"></a><span class="lineno"> 4003</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04004"></a><span class="lineno"> 4004</span> </div>
<div class="line"><a name="l04005"></a><span class="lineno"> 4005</span>  stream->callbackInfo.usingCallback = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04006"></a><span class="lineno"> 4006</span>  stream->callbackInfo.userData = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l04007"></a><span class="lineno"> 4007</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l04008"></a><span class="lineno"> 4008</span>  stream->callbackInfo.callback = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l04009"></a><span class="lineno"> 4009</span> </div>
<div class="line"><a name="l04010"></a><span class="lineno"> 4010</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04011"></a><span class="lineno"> 4011</span>  }</div>
<div class="line"><a name="l04012"></a><span class="lineno"> 4012</span> }</div>
<div class="line"><a name="l04013"></a><span class="lineno"> 4013</span> </div>
<div class="line"><a name="l04014"></a><span class="lineno"> 4014</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a9b25382cabd65d739f2718f8647f1066" title="Public method which closes a stream and frees any associated buffers.">RtAudio :: closeStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l04015"></a><span class="lineno"> 4015</span> {</div>
<div class="line"><a name="l04016"></a><span class="lineno"> 4016</span>  <span class="comment">// We don't want an exception to be thrown here because this</span></div>
<div class="line"><a name="l04017"></a><span class="lineno"> 4017</span>  <span class="comment">// function is called by our class destructor. So, do our own</span></div>
<div class="line"><a name="l04018"></a><span class="lineno"> 4018</span>  <span class="comment">// streamId check.</span></div>
<div class="line"><a name="l04019"></a><span class="lineno"> 4019</span>  <span class="keywordflow">if</span> ( streams.find( streamId ) == streams.end() ) {</div>
<div class="line"><a name="l04020"></a><span class="lineno"> 4020</span>  sprintf(message, <span class="stringliteral">"RtAudio: invalid stream identifier!"</span>);</div>
<div class="line"><a name="l04021"></a><span class="lineno"> 4021</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04022"></a><span class="lineno"> 4022</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04023"></a><span class="lineno"> 4023</span>  }</div>
<div class="line"><a name="l04024"></a><span class="lineno"> 4024</span> </div>
<div class="line"><a name="l04025"></a><span class="lineno"> 4025</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) streams[streamId];</div>
<div class="line"><a name="l04026"></a><span class="lineno"> 4026</span> </div>
<div class="line"><a name="l04027"></a><span class="lineno"> 4027</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l04028"></a><span class="lineno"> 4028</span>  ASIOStop();</div>
<div class="line"><a name="l04029"></a><span class="lineno"> 4029</span> </div>
<div class="line"><a name="l04030"></a><span class="lineno"> 4030</span>  ASIODisposeBuffers();</div>
<div class="line"><a name="l04031"></a><span class="lineno"> 4031</span>  <span class="comment">//ASIOExit();</span></div>
<div class="line"><a name="l04032"></a><span class="lineno"> 4032</span>  drivers.removeCurrentDriver();</div>
<div class="line"><a name="l04033"></a><span class="lineno"> 4033</span> </div>
<div class="line"><a name="l04034"></a><span class="lineno"> 4034</span>  DeleteCriticalSection(&stream->mutex);</div>
<div class="line"><a name="l04035"></a><span class="lineno"> 4035</span> </div>
<div class="line"><a name="l04036"></a><span class="lineno"> 4036</span>  <span class="keywordflow">if</span> (stream->callbackInfo.buffers)</div>
<div class="line"><a name="l04037"></a><span class="lineno"> 4037</span>  free(stream->callbackInfo.buffers);</div>
<div class="line"><a name="l04038"></a><span class="lineno"> 4038</span> </div>
<div class="line"><a name="l04039"></a><span class="lineno"> 4039</span>  <span class="keywordflow">if</span> (stream->userBuffer)</div>
<div class="line"><a name="l04040"></a><span class="lineno"> 4040</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l04041"></a><span class="lineno"> 4041</span> </div>
<div class="line"><a name="l04042"></a><span class="lineno"> 4042</span>  <span class="keywordflow">if</span> (stream->deviceBuffer)</div>
<div class="line"><a name="l04043"></a><span class="lineno"> 4043</span>  free(stream->deviceBuffer);</div>
<div class="line"><a name="l04044"></a><span class="lineno"> 4044</span> </div>
<div class="line"><a name="l04045"></a><span class="lineno"> 4045</span>  free(stream);</div>
<div class="line"><a name="l04046"></a><span class="lineno"> 4046</span>  streams.erase(streamId);</div>
<div class="line"><a name="l04047"></a><span class="lineno"> 4047</span> }</div>
<div class="line"><a name="l04048"></a><span class="lineno"> 4048</span> </div>
<div class="line"><a name="l04049"></a><span class="lineno"> 4049</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a304d9fc57cee6539bb1d98b82b10508f" title="Public method which starts a stream.">RtAudio :: startStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l04050"></a><span class="lineno"> 4050</span> {</div>
<div class="line"><a name="l04051"></a><span class="lineno"> 4051</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l04052"></a><span class="lineno"> 4052</span> </div>
<div class="line"><a name="l04053"></a><span class="lineno"> 4053</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04054"></a><span class="lineno"> 4054</span> </div>
<div class="line"><a name="l04055"></a><span class="lineno"> 4055</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING) {</div>
<div class="line"><a name="l04056"></a><span class="lineno"> 4056</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04057"></a><span class="lineno"> 4057</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04058"></a><span class="lineno"> 4058</span>  }</div>
<div class="line"><a name="l04059"></a><span class="lineno"> 4059</span> </div>
<div class="line"><a name="l04060"></a><span class="lineno"> 4060</span>  stream->callbackInfo.blockTick = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04061"></a><span class="lineno"> 4061</span>  stream->callbackInfo.stopStream = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04062"></a><span class="lineno"> 4062</span>  stream->callbackInfo.streamId = streamId;</div>
<div class="line"><a name="l04063"></a><span class="lineno"> 4063</span>  ASIOError result = ASIOStart();</div>
<div class="line"><a name="l04064"></a><span class="lineno"> 4064</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l04065"></a><span class="lineno"> 4065</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO error starting device (%s)."</span>,</div>
<div class="line"><a name="l04066"></a><span class="lineno"> 4066</span>  devices[stream->device[0]].name);</div>
<div class="line"><a name="l04067"></a><span class="lineno"> 4067</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04068"></a><span class="lineno"> 4068</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l04069"></a><span class="lineno"> 4069</span>  }</div>
<div class="line"><a name="l04070"></a><span class="lineno"> 4070</span>  stream->state = STREAM_RUNNING;</div>
<div class="line"><a name="l04071"></a><span class="lineno"> 4071</span> </div>
<div class="line"><a name="l04072"></a><span class="lineno"> 4072</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04073"></a><span class="lineno"> 4073</span> }</div>
<div class="line"><a name="l04074"></a><span class="lineno"> 4074</span> </div>
<div class="line"><a name="l04075"></a><span class="lineno"> 4075</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">RtAudio :: stopStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l04076"></a><span class="lineno"> 4076</span> {</div>
<div class="line"><a name="l04077"></a><span class="lineno"> 4077</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l04078"></a><span class="lineno"> 4078</span> </div>
<div class="line"><a name="l04079"></a><span class="lineno"> 4079</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04080"></a><span class="lineno"> 4080</span> </div>
<div class="line"><a name="l04081"></a><span class="lineno"> 4081</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED) {</div>
<div class="line"><a name="l04082"></a><span class="lineno"> 4082</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04083"></a><span class="lineno"> 4083</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04084"></a><span class="lineno"> 4084</span>  }</div>
<div class="line"><a name="l04085"></a><span class="lineno"> 4085</span> </div>
<div class="line"><a name="l04086"></a><span class="lineno"> 4086</span>  ASIOError result = ASIOStop();</div>
<div class="line"><a name="l04087"></a><span class="lineno"> 4087</span>  <span class="keywordflow">if</span> ( result != ASE_OK ) {</div>
<div class="line"><a name="l04088"></a><span class="lineno"> 4088</span>  sprintf(message, <span class="stringliteral">"RtAudio: ASIO error stopping device (%s)."</span>,</div>
<div class="line"><a name="l04089"></a><span class="lineno"> 4089</span>  devices[stream->device[0]].name);</div>
<div class="line"><a name="l04090"></a><span class="lineno"> 4090</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04091"></a><span class="lineno"> 4091</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l04092"></a><span class="lineno"> 4092</span>  }</div>
<div class="line"><a name="l04093"></a><span class="lineno"> 4093</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l04094"></a><span class="lineno"> 4094</span> </div>
<div class="line"><a name="l04095"></a><span class="lineno"> 4095</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04096"></a><span class="lineno"> 4096</span> }</div>
<div class="line"><a name="l04097"></a><span class="lineno"> 4097</span> </div>
<div class="line"><a name="l04098"></a><span class="lineno"> 4098</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a72335b2cf99913c017886ce5a818e6a3" title="Stop a stream, discarding any samples remaining in the input/output queue.">RtAudio :: abortStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l04099"></a><span class="lineno"> 4099</span> {</div>
<div class="line"><a name="l04100"></a><span class="lineno"> 4100</span>  <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>( streamId );</div>
<div class="line"><a name="l04101"></a><span class="lineno"> 4101</span> }</div>
<div class="line"><a name="l04102"></a><span class="lineno"> 4102</span> </div>
<div class="line"><a name="l04103"></a><span class="lineno"> 4103</span> <span class="comment">// I don't know how this function can be implemented.</span></div>
<div class="line"><a name="l04104"></a><span class="lineno"> 4104</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#ab7e0a7652c1c90c0463ccbff3b794f2f" title="Queries a stream to determine whether a call to the tickStream() method will block.">RtAudio :: streamWillBlock</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l04105"></a><span class="lineno"> 4105</span> {</div>
<div class="line"><a name="l04106"></a><span class="lineno"> 4106</span>  sprintf(message, <span class="stringliteral">"RtAudio: streamWillBlock() cannot be implemented for ASIO."</span>);</div>
<div class="line"><a name="l04107"></a><span class="lineno"> 4107</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04108"></a><span class="lineno"> 4108</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l04109"></a><span class="lineno"> 4109</span> }</div>
<div class="line"><a name="l04110"></a><span class="lineno"> 4110</span> </div>
<div class="line"><a name="l04111"></a><span class="lineno"> 4111</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a2ba2bb7bf1995b0d754ec96b10bda324" title="Public method used to trigger processing of input/output data for a stream.">RtAudio :: tickStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l04112"></a><span class="lineno"> 4112</span> {</div>
<div class="line"><a name="l04113"></a><span class="lineno"> 4113</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l04114"></a><span class="lineno"> 4114</span> </div>
<div class="line"><a name="l04115"></a><span class="lineno"> 4115</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l04116"></a><span class="lineno"> 4116</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04117"></a><span class="lineno"> 4117</span> </div>
<div class="line"><a name="l04118"></a><span class="lineno"> 4118</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l04119"></a><span class="lineno"> 4119</span>  sprintf(message, <span class="stringliteral">"RtAudio: tickStream() should not be used when a callback function is set!"</span>);</div>
<div class="line"><a name="l04120"></a><span class="lineno"> 4120</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04121"></a><span class="lineno"> 4121</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04122"></a><span class="lineno"> 4122</span>  }</div>
<div class="line"><a name="l04123"></a><span class="lineno"> 4123</span> </div>
<div class="line"><a name="l04124"></a><span class="lineno"> 4124</span>  <span class="comment">// Block waiting here until the user data is processed in callbackEvent().</span></div>
<div class="line"><a name="l04125"></a><span class="lineno"> 4125</span>  <span class="keywordflow">while</span> ( stream->callbackInfo.blockTick )</div>
<div class="line"><a name="l04126"></a><span class="lineno"> 4126</span>  Sleep(stream->callbackInfo.waitTime);</div>
<div class="line"><a name="l04127"></a><span class="lineno"> 4127</span> </div>
<div class="line"><a name="l04128"></a><span class="lineno"> 4128</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04129"></a><span class="lineno"> 4129</span> </div>
<div class="line"><a name="l04130"></a><span class="lineno"> 4130</span>  stream->callbackInfo.blockTick = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04131"></a><span class="lineno"> 4131</span> </div>
<div class="line"><a name="l04132"></a><span class="lineno"> 4132</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04133"></a><span class="lineno"> 4133</span> }</div>
<div class="line"><a name="l04134"></a><span class="lineno"> 4134</span> </div>
<div class="line"><a name="l04135"></a><span class="lineno"> 4135</span> <span class="keywordtype">void</span> RtAudio :: callbackEvent(<span class="keywordtype">int</span> streamId, <span class="keywordtype">int</span> bufferIndex, <span class="keywordtype">void</span> *inData, <span class="keywordtype">void</span> *outData)</div>
<div class="line"><a name="l04136"></a><span class="lineno"> 4136</span> {</div>
<div class="line"><a name="l04137"></a><span class="lineno"> 4137</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l04138"></a><span class="lineno"> 4138</span> </div>
<div class="line"><a name="l04139"></a><span class="lineno"> 4139</span>  <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *info = asioCallbackInfo;</div>
<div class="line"><a name="l04140"></a><span class="lineno"> 4140</span>  <span class="keywordflow">if</span> ( !info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> ) {</div>
<div class="line"><a name="l04141"></a><span class="lineno"> 4141</span>  <span class="comment">// Block waiting here until we get new user data in tickStream().</span></div>
<div class="line"><a name="l04142"></a><span class="lineno"> 4142</span>  <span class="keywordflow">while</span> ( !info-><a class="code" href="structCALLBACK__INFO.html#a678e280d4302d086f57d84b0f2bbcc60">blockTick</a> )</div>
<div class="line"><a name="l04143"></a><span class="lineno"> 4143</span>  Sleep(info-><a class="code" href="structCALLBACK__INFO.html#a0ed286858d36026b6fc12788fcdb8c34">waitTime</a>);</div>
<div class="line"><a name="l04144"></a><span class="lineno"> 4144</span>  }</div>
<div class="line"><a name="l04145"></a><span class="lineno"> 4145</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( info-><a class="code" href="structCALLBACK__INFO.html#aa1dacf399d0864ec8bedaf74df6fa8e2">stopStream</a> ) {</div>
<div class="line"><a name="l04146"></a><span class="lineno"> 4146</span>  <span class="comment">// Check if the stream should be stopped (via the previous user</span></div>
<div class="line"><a name="l04147"></a><span class="lineno"> 4147</span>  <span class="comment">// callback return value). We stop the stream here, rather than</span></div>
<div class="line"><a name="l04148"></a><span class="lineno"> 4148</span>  <span class="comment">// after the function call, so that output data can first be</span></div>
<div class="line"><a name="l04149"></a><span class="lineno"> 4149</span>  <span class="comment">// processed.</span></div>
<div class="line"><a name="l04150"></a><span class="lineno"> 4150</span>  this-><a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>(asioCallbackInfo-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a>);</div>
<div class="line"><a name="l04151"></a><span class="lineno"> 4151</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04152"></a><span class="lineno"> 4152</span>  }</div>
<div class="line"><a name="l04153"></a><span class="lineno"> 4153</span> </div>
<div class="line"><a name="l04154"></a><span class="lineno"> 4154</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04155"></a><span class="lineno"> 4155</span> </div>
<div class="line"><a name="l04156"></a><span class="lineno"> 4156</span>  <span class="comment">// Invoke user callback first, to get fresh output data.</span></div>
<div class="line"><a name="l04157"></a><span class="lineno"> 4157</span>  <span class="keywordflow">if</span> ( info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> ) {</div>
<div class="line"><a name="l04158"></a><span class="lineno"> 4158</span>  <a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a> callback = (<a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a>) info-><a class="code" href="structCALLBACK__INFO.html#a654bf7533d89783acad1e2da499e2baf">callback</a>;</div>
<div class="line"><a name="l04159"></a><span class="lineno"> 4159</span>  if ( callback(stream->userBuffer, stream->bufferSize, info-><a class="code" href="structCALLBACK__INFO.html#a5341b437d7ab1abf412ca00b063bca31">userData</a>) )</div>
<div class="line"><a name="l04160"></a><span class="lineno"> 4160</span>  info-><a class="code" href="structCALLBACK__INFO.html#aa1dacf399d0864ec8bedaf74df6fa8e2">stopStream</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04161"></a><span class="lineno"> 4161</span>  }</div>
<div class="line"><a name="l04162"></a><span class="lineno"> 4162</span> </div>
<div class="line"><a name="l04163"></a><span class="lineno"> 4163</span>  <span class="keywordtype">int</span> nChannels = stream->nDeviceChannels[0] + stream->nDeviceChannels[1];</div>
<div class="line"><a name="l04164"></a><span class="lineno"> 4164</span>  <span class="keywordtype">int</span> bufferBytes;</div>
<div class="line"><a name="l04165"></a><span class="lineno"> 4165</span>  ASIOBufferInfo *bufferInfos = (ASIOBufferInfo *) info-><a class="code" href="structCALLBACK__INFO.html#a08c00acb0ad353a07a1f34015cd4b8cc">buffers</a>;</div>
<div class="line"><a name="l04166"></a><span class="lineno"> 4166</span>  if ( stream->mode == OUTPUT || stream->mode == DUPLEX ) {</div>
<div class="line"><a name="l04167"></a><span class="lineno"> 4167</span> </div>
<div class="line"><a name="l04168"></a><span class="lineno"> 4168</span>  bufferBytes = stream->bufferSize * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l04169"></a><span class="lineno"> 4169</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[0]) {</div>
<div class="line"><a name="l04170"></a><span class="lineno"> 4170</span> </div>
<div class="line"><a name="l04171"></a><span class="lineno"> 4171</span>  convertStreamBuffer(stream, OUTPUT);</div>
<div class="line"><a name="l04172"></a><span class="lineno"> 4172</span>  <span class="keywordflow">if</span> ( stream->doByteSwap[0] )</div>
<div class="line"><a name="l04173"></a><span class="lineno"> 4173</span>  byteSwapBuffer(stream->deviceBuffer,</div>
<div class="line"><a name="l04174"></a><span class="lineno"> 4174</span>  stream->bufferSize * stream->nDeviceChannels[0],</div>
<div class="line"><a name="l04175"></a><span class="lineno"> 4175</span>  stream->deviceFormat[0]);</div>
<div class="line"><a name="l04176"></a><span class="lineno"> 4176</span> </div>
<div class="line"><a name="l04177"></a><span class="lineno"> 4177</span>  <span class="comment">// Always de-interleave ASIO output data.</span></div>
<div class="line"><a name="l04178"></a><span class="lineno"> 4178</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<stream->nDeviceChannels[0]; i++, bufferInfos++ ) {</div>
<div class="line"><a name="l04179"></a><span class="lineno"> 4179</span>  memcpy(bufferInfos->buffers[bufferIndex],</div>
<div class="line"><a name="l04180"></a><span class="lineno"> 4180</span>  &stream->deviceBuffer[i*bufferBytes], bufferBytes );</div>
<div class="line"><a name="l04181"></a><span class="lineno"> 4181</span>  }</div>
<div class="line"><a name="l04182"></a><span class="lineno"> 4182</span>  }</div>
<div class="line"><a name="l04183"></a><span class="lineno"> 4183</span>  <span class="keywordflow">else</span> { <span class="comment">// single channel only</span></div>
<div class="line"><a name="l04184"></a><span class="lineno"> 4184</span> </div>
<div class="line"><a name="l04185"></a><span class="lineno"> 4185</span>  <span class="keywordflow">if</span> (stream->doByteSwap[0])</div>
<div class="line"><a name="l04186"></a><span class="lineno"> 4186</span>  byteSwapBuffer(stream->userBuffer,</div>
<div class="line"><a name="l04187"></a><span class="lineno"> 4187</span>  stream->bufferSize * stream->nUserChannels[0],</div>
<div class="line"><a name="l04188"></a><span class="lineno"> 4188</span>  stream->userFormat);</div>
<div class="line"><a name="l04189"></a><span class="lineno"> 4189</span> </div>
<div class="line"><a name="l04190"></a><span class="lineno"> 4190</span>  memcpy(bufferInfos->buffers[bufferIndex], stream->userBuffer, bufferBytes );</div>
<div class="line"><a name="l04191"></a><span class="lineno"> 4191</span>  }</div>
<div class="line"><a name="l04192"></a><span class="lineno"> 4192</span>  }</div>
<div class="line"><a name="l04193"></a><span class="lineno"> 4193</span> </div>
<div class="line"><a name="l04194"></a><span class="lineno"> 4194</span>  <span class="keywordflow">if</span> ( stream->mode == INPUT || stream->mode == DUPLEX ) {</div>
<div class="line"><a name="l04195"></a><span class="lineno"> 4195</span> </div>
<div class="line"><a name="l04196"></a><span class="lineno"> 4196</span>  bufferBytes = stream->bufferSize * formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l04197"></a><span class="lineno"> 4197</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1]) {</div>
<div class="line"><a name="l04198"></a><span class="lineno"> 4198</span> </div>
<div class="line"><a name="l04199"></a><span class="lineno"> 4199</span>  <span class="comment">// Always interleave ASIO input data.</span></div>
<div class="line"><a name="l04200"></a><span class="lineno"> 4200</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<stream->nDeviceChannels[1]; i++, bufferInfos++ )</div>
<div class="line"><a name="l04201"></a><span class="lineno"> 4201</span>  memcpy(&stream->deviceBuffer[i*bufferBytes], bufferInfos->buffers[bufferIndex], bufferBytes );</div>
<div class="line"><a name="l04202"></a><span class="lineno"> 4202</span> </div>
<div class="line"><a name="l04203"></a><span class="lineno"> 4203</span>  <span class="keywordflow">if</span> ( stream->doByteSwap[1] )</div>
<div class="line"><a name="l04204"></a><span class="lineno"> 4204</span>  byteSwapBuffer(stream->deviceBuffer,</div>
<div class="line"><a name="l04205"></a><span class="lineno"> 4205</span>  stream->bufferSize * stream->nDeviceChannels[1],</div>
<div class="line"><a name="l04206"></a><span class="lineno"> 4206</span>  stream->deviceFormat[1]);</div>
<div class="line"><a name="l04207"></a><span class="lineno"> 4207</span>  convertStreamBuffer(stream, INPUT);</div>
<div class="line"><a name="l04208"></a><span class="lineno"> 4208</span> </div>
<div class="line"><a name="l04209"></a><span class="lineno"> 4209</span>  }</div>
<div class="line"><a name="l04210"></a><span class="lineno"> 4210</span>  <span class="keywordflow">else</span> { <span class="comment">// single channel only</span></div>
<div class="line"><a name="l04211"></a><span class="lineno"> 4211</span>  memcpy(stream->userBuffer, bufferInfos->buffers[bufferIndex], bufferBytes );</div>
<div class="line"><a name="l04212"></a><span class="lineno"> 4212</span> </div>
<div class="line"><a name="l04213"></a><span class="lineno"> 4213</span>  <span class="keywordflow">if</span> (stream->doByteSwap[1])</div>
<div class="line"><a name="l04214"></a><span class="lineno"> 4214</span>  byteSwapBuffer(stream->userBuffer,</div>
<div class="line"><a name="l04215"></a><span class="lineno"> 4215</span>  stream->bufferSize * stream->nUserChannels[1],</div>
<div class="line"><a name="l04216"></a><span class="lineno"> 4216</span>  stream->userFormat);</div>
<div class="line"><a name="l04217"></a><span class="lineno"> 4217</span>  }</div>
<div class="line"><a name="l04218"></a><span class="lineno"> 4218</span>  }</div>
<div class="line"><a name="l04219"></a><span class="lineno"> 4219</span> </div>
<div class="line"><a name="l04220"></a><span class="lineno"> 4220</span>  <span class="keywordflow">if</span> ( !info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> )</div>
<div class="line"><a name="l04221"></a><span class="lineno"> 4221</span>  info-><a class="code" href="structCALLBACK__INFO.html#a678e280d4302d086f57d84b0f2bbcc60">blockTick</a> = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04222"></a><span class="lineno"> 4222</span> </div>
<div class="line"><a name="l04223"></a><span class="lineno"> 4223</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04224"></a><span class="lineno"> 4224</span> }</div>
<div class="line"><a name="l04225"></a><span class="lineno"> 4225</span> </div>
<div class="line"><a name="l04226"></a><span class="lineno"> 4226</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#ade4c600afb2fe5c8b568db7845c7c494" title="A public method which sets a user-defined callback function for a given stream.">RtAudio :: setStreamCallback</a>(<span class="keywordtype">int</span> streamId, RTAUDIO_CALLBACK callback, <span class="keywordtype">void</span> *userData)</div>
<div class="line"><a name="l04227"></a><span class="lineno"> 4227</span> {</div>
<div class="line"><a name="l04228"></a><span class="lineno"> 4228</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l04229"></a><span class="lineno"> 4229</span> </div>
<div class="line"><a name="l04230"></a><span class="lineno"> 4230</span>  stream->callbackInfo.callback = (<span class="keywordtype">void</span> *) callback;</div>
<div class="line"><a name="l04231"></a><span class="lineno"> 4231</span>  stream->callbackInfo.userData = userData;</div>
<div class="line"><a name="l04232"></a><span class="lineno"> 4232</span>  stream->callbackInfo.usingCallback = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04233"></a><span class="lineno"> 4233</span> }</div>
<div class="line"><a name="l04234"></a><span class="lineno"> 4234</span> </div>
<div class="line"><a name="l04235"></a><span class="lineno"> 4235</span> <span class="comment">//******************** End of __WINDOWS_ASIO__ *********************//</span></div>
<div class="line"><a name="l04236"></a><span class="lineno"> 4236</span> </div>
<div class="line"><a name="l04237"></a><span class="lineno"> 4237</span> <span class="preprocessor">#elif defined(__WINDOWS_DS__) // Windows DirectSound API</span></div>
<div class="line"><a name="l04238"></a><span class="lineno"> 4238</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l04239"></a><span class="lineno"> 4239</span> <span class="preprocessor">#include <dsound.h></span></div>
<div class="line"><a name="l04240"></a><span class="lineno"> 4240</span> </div>
<div class="line"><a name="l04241"></a><span class="lineno"> 4241</span> <span class="comment">// Declarations for utility functions, callbacks, and structures</span></div>
<div class="line"><a name="l04242"></a><span class="lineno"> 4242</span> <span class="comment">// specific to the DirectSound implementation.</span></div>
<div class="line"><a name="l04243"></a><span class="lineno"> 4243</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> CALLBACK deviceCountCallback(LPGUID lpguid,</div>
<div class="line"><a name="l04244"></a><span class="lineno"> 4244</span>  LPCSTR lpcstrDescription,</div>
<div class="line"><a name="l04245"></a><span class="lineno"> 4245</span>  LPCSTR lpcstrModule,</div>
<div class="line"><a name="l04246"></a><span class="lineno"> 4246</span>  LPVOID lpContext);</div>
<div class="line"><a name="l04247"></a><span class="lineno"> 4247</span> </div>
<div class="line"><a name="l04248"></a><span class="lineno"> 4248</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> CALLBACK deviceInfoCallback(LPGUID lpguid,</div>
<div class="line"><a name="l04249"></a><span class="lineno"> 4249</span>  LPCSTR lpcstrDescription,</div>
<div class="line"><a name="l04250"></a><span class="lineno"> 4250</span>  LPCSTR lpcstrModule,</div>
<div class="line"><a name="l04251"></a><span class="lineno"> 4251</span>  LPVOID lpContext);</div>
<div class="line"><a name="l04252"></a><span class="lineno"> 4252</span> </div>
<div class="line"><a name="l04253"></a><span class="lineno"> 4253</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> CALLBACK defaultDeviceCallback(LPGUID lpguid,</div>
<div class="line"><a name="l04254"></a><span class="lineno"> 4254</span>  LPCSTR lpcstrDescription,</div>
<div class="line"><a name="l04255"></a><span class="lineno"> 4255</span>  LPCSTR lpcstrModule,</div>
<div class="line"><a name="l04256"></a><span class="lineno"> 4256</span>  LPVOID lpContext);</div>
<div class="line"><a name="l04257"></a><span class="lineno"> 4257</span> </div>
<div class="line"><a name="l04258"></a><span class="lineno"> 4258</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> CALLBACK deviceIdCallback(LPGUID lpguid,</div>
<div class="line"><a name="l04259"></a><span class="lineno"> 4259</span>  LPCSTR lpcstrDescription,</div>
<div class="line"><a name="l04260"></a><span class="lineno"> 4260</span>  LPCSTR lpcstrModule,</div>
<div class="line"><a name="l04261"></a><span class="lineno"> 4261</span>  LPVOID lpContext);</div>
<div class="line"><a name="l04262"></a><span class="lineno"> 4262</span> </div>
<div class="line"><a name="l04263"></a><span class="lineno"> 4263</span> <span class="keyword">static</span> <span class="keywordtype">char</span>* getErrorString(<span class="keywordtype">int</span> code);</div>
<div class="line"><a name="l04264"></a><span class="lineno"> 4264</span> </div>
<div class="line"><a name="l04265"></a><span class="lineno"> 4265</span> <span class="keyword">struct </span>enum_info {</div>
<div class="line"><a name="l04266"></a><span class="lineno"> 4266</span>  <span class="keywordtype">char</span> name[64];</div>
<div class="line"><a name="l04267"></a><span class="lineno"> 4267</span>  LPGUID id;</div>
<div class="line"><a name="l04268"></a><span class="lineno"> 4268</span>  <span class="keywordtype">bool</span> isInput;</div>
<div class="line"><a name="l04269"></a><span class="lineno"> 4269</span>  <span class="keywordtype">bool</span> isValid;</div>
<div class="line"><a name="l04270"></a><span class="lineno"> 4270</span> };</div>
<div class="line"><a name="l04271"></a><span class="lineno"> 4271</span> </div>
<div class="line"><a name="l04272"></a><span class="lineno"> 4272</span> <span class="keywordtype">int</span> RtAudio :: getDefaultInputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l04273"></a><span class="lineno"> 4273</span> {</div>
<div class="line"><a name="l04274"></a><span class="lineno"> 4274</span>  enum_info info;</div>
<div class="line"><a name="l04275"></a><span class="lineno"> 4275</span>  info.name[0] = <span class="charliteral">'\0'</span>;</div>
<div class="line"><a name="l04276"></a><span class="lineno"> 4276</span> </div>
<div class="line"><a name="l04277"></a><span class="lineno"> 4277</span>  <span class="comment">// Enumerate through devices to find the default output.</span></div>
<div class="line"><a name="l04278"></a><span class="lineno"> 4278</span>  HRESULT result = DirectSoundCaptureEnumerate((LPDSENUMCALLBACK)defaultDeviceCallback, &info);</div>
<div class="line"><a name="l04279"></a><span class="lineno"> 4279</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04280"></a><span class="lineno"> 4280</span>  sprintf(message, <span class="stringliteral">"RtAudio: Error performing default input device enumeration: %s."</span>,</div>
<div class="line"><a name="l04281"></a><span class="lineno"> 4281</span>  getErrorString(result));</div>
<div class="line"><a name="l04282"></a><span class="lineno"> 4282</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04283"></a><span class="lineno"> 4283</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l04284"></a><span class="lineno"> 4284</span>  }</div>
<div class="line"><a name="l04285"></a><span class="lineno"> 4285</span> </div>
<div class="line"><a name="l04286"></a><span class="lineno"> 4286</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<nDevices; i++ )</div>
<div class="line"><a name="l04287"></a><span class="lineno"> 4287</span>  <span class="keywordflow">if</span> ( strncmp( devices[i].name, info.name, 64 ) == 0 ) <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l04288"></a><span class="lineno"> 4288</span> </div>
<div class="line"><a name="l04289"></a><span class="lineno"> 4289</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l04290"></a><span class="lineno"> 4290</span> }</div>
<div class="line"><a name="l04291"></a><span class="lineno"> 4291</span> </div>
<div class="line"><a name="l04292"></a><span class="lineno"> 4292</span> <span class="keywordtype">int</span> RtAudio :: getDefaultOutputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l04293"></a><span class="lineno"> 4293</span> {</div>
<div class="line"><a name="l04294"></a><span class="lineno"> 4294</span>  enum_info info;</div>
<div class="line"><a name="l04295"></a><span class="lineno"> 4295</span>  info.name[0] = <span class="charliteral">'\0'</span>;</div>
<div class="line"><a name="l04296"></a><span class="lineno"> 4296</span> </div>
<div class="line"><a name="l04297"></a><span class="lineno"> 4297</span>  <span class="comment">// Enumerate through devices to find the default output.</span></div>
<div class="line"><a name="l04298"></a><span class="lineno"> 4298</span>  HRESULT result = DirectSoundEnumerate((LPDSENUMCALLBACK)defaultDeviceCallback, &info);</div>
<div class="line"><a name="l04299"></a><span class="lineno"> 4299</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04300"></a><span class="lineno"> 4300</span>  sprintf(message, <span class="stringliteral">"RtAudio: Error performing default output device enumeration: %s."</span>,</div>
<div class="line"><a name="l04301"></a><span class="lineno"> 4301</span>  getErrorString(result));</div>
<div class="line"><a name="l04302"></a><span class="lineno"> 4302</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04303"></a><span class="lineno"> 4303</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l04304"></a><span class="lineno"> 4304</span>  }</div>
<div class="line"><a name="l04305"></a><span class="lineno"> 4305</span> </div>
<div class="line"><a name="l04306"></a><span class="lineno"> 4306</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<nDevices; i++ )</div>
<div class="line"><a name="l04307"></a><span class="lineno"> 4307</span>  <span class="keywordflow">if</span> ( strncmp(devices[i].name, info.name, 64 ) == 0 ) <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l04308"></a><span class="lineno"> 4308</span> </div>
<div class="line"><a name="l04309"></a><span class="lineno"> 4309</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l04310"></a><span class="lineno"> 4310</span> }</div>
<div class="line"><a name="l04311"></a><span class="lineno"> 4311</span> </div>
<div class="line"><a name="l04312"></a><span class="lineno"> 4312</span> <span class="keywordtype">void</span> RtAudio :: initialize(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l04313"></a><span class="lineno"> 4313</span> {</div>
<div class="line"><a name="l04314"></a><span class="lineno"> 4314</span>  <span class="keywordtype">int</span> i, ins = 0, outs = 0, count = 0;</div>
<div class="line"><a name="l04315"></a><span class="lineno"> 4315</span>  HRESULT result;</div>
<div class="line"><a name="l04316"></a><span class="lineno"> 4316</span>  nDevices = 0;</div>
<div class="line"><a name="l04317"></a><span class="lineno"> 4317</span> </div>
<div class="line"><a name="l04318"></a><span class="lineno"> 4318</span>  <span class="comment">// Count DirectSound devices.</span></div>
<div class="line"><a name="l04319"></a><span class="lineno"> 4319</span>  result = DirectSoundEnumerate((LPDSENUMCALLBACK)deviceCountCallback, &outs);</div>
<div class="line"><a name="l04320"></a><span class="lineno"> 4320</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04321"></a><span class="lineno"> 4321</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to enumerate through sound playback devices: %s."</span>,</div>
<div class="line"><a name="l04322"></a><span class="lineno"> 4322</span>  getErrorString(result));</div>
<div class="line"><a name="l04323"></a><span class="lineno"> 4323</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l04324"></a><span class="lineno"> 4324</span>  }</div>
<div class="line"><a name="l04325"></a><span class="lineno"> 4325</span> </div>
<div class="line"><a name="l04326"></a><span class="lineno"> 4326</span>  <span class="comment">// Count DirectSoundCapture devices.</span></div>
<div class="line"><a name="l04327"></a><span class="lineno"> 4327</span>  result = DirectSoundCaptureEnumerate((LPDSENUMCALLBACK)deviceCountCallback, &ins);</div>
<div class="line"><a name="l04328"></a><span class="lineno"> 4328</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04329"></a><span class="lineno"> 4329</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to enumerate through sound capture devices: %s."</span>,</div>
<div class="line"><a name="l04330"></a><span class="lineno"> 4330</span>  getErrorString(result));</div>
<div class="line"><a name="l04331"></a><span class="lineno"> 4331</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l04332"></a><span class="lineno"> 4332</span>  }</div>
<div class="line"><a name="l04333"></a><span class="lineno"> 4333</span> </div>
<div class="line"><a name="l04334"></a><span class="lineno"> 4334</span>  count = ins + outs;</div>
<div class="line"><a name="l04335"></a><span class="lineno"> 4335</span>  <span class="keywordflow">if</span> (count == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04336"></a><span class="lineno"> 4336</span> </div>
<div class="line"><a name="l04337"></a><span class="lineno"> 4337</span>  std::vector<enum_info> info(count);</div>
<div class="line"><a name="l04338"></a><span class="lineno"> 4338</span>  <span class="keywordflow">for</span> (i=0; i<count; i++) {</div>
<div class="line"><a name="l04339"></a><span class="lineno"> 4339</span>  info[i].name[0] = <span class="charliteral">'\0'</span>;</div>
<div class="line"><a name="l04340"></a><span class="lineno"> 4340</span>  <span class="keywordflow">if</span> (i < outs) info[i].isInput = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04341"></a><span class="lineno"> 4341</span>  <span class="keywordflow">else</span> info[i].isInput = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04342"></a><span class="lineno"> 4342</span>  }</div>
<div class="line"><a name="l04343"></a><span class="lineno"> 4343</span> </div>
<div class="line"><a name="l04344"></a><span class="lineno"> 4344</span>  <span class="comment">// Get playback device info and check capabilities.</span></div>
<div class="line"><a name="l04345"></a><span class="lineno"> 4345</span>  result = DirectSoundEnumerate((LPDSENUMCALLBACK)deviceInfoCallback, &info[0]);</div>
<div class="line"><a name="l04346"></a><span class="lineno"> 4346</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04347"></a><span class="lineno"> 4347</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to enumerate through sound playback devices: %s."</span>,</div>
<div class="line"><a name="l04348"></a><span class="lineno"> 4348</span>  getErrorString(result));</div>
<div class="line"><a name="l04349"></a><span class="lineno"> 4349</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l04350"></a><span class="lineno"> 4350</span>  }</div>
<div class="line"><a name="l04351"></a><span class="lineno"> 4351</span> </div>
<div class="line"><a name="l04352"></a><span class="lineno"> 4352</span>  <span class="comment">// Get capture device info and check capabilities.</span></div>
<div class="line"><a name="l04353"></a><span class="lineno"> 4353</span>  result = DirectSoundCaptureEnumerate((LPDSENUMCALLBACK)deviceInfoCallback, &info[0]);</div>
<div class="line"><a name="l04354"></a><span class="lineno"> 4354</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04355"></a><span class="lineno"> 4355</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to enumerate through sound capture devices: %s."</span>,</div>
<div class="line"><a name="l04356"></a><span class="lineno"> 4356</span>  getErrorString(result));</div>
<div class="line"><a name="l04357"></a><span class="lineno"> 4357</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l04358"></a><span class="lineno"> 4358</span>  }</div>
<div class="line"><a name="l04359"></a><span class="lineno"> 4359</span> </div>
<div class="line"><a name="l04360"></a><span class="lineno"> 4360</span>  <span class="comment">// Parse the devices and check validity. Devices are considered</span></div>
<div class="line"><a name="l04361"></a><span class="lineno"> 4361</span>  <span class="comment">// invalid if they cannot be opened, they report < 1 supported</span></div>
<div class="line"><a name="l04362"></a><span class="lineno"> 4362</span>  <span class="comment">// channels, or they report no supported data (capture only).</span></div>
<div class="line"><a name="l04363"></a><span class="lineno"> 4363</span>  <span class="keywordflow">for</span> (i=0; i<count; i++)</div>
<div class="line"><a name="l04364"></a><span class="lineno"> 4364</span>  <span class="keywordflow">if</span> ( info[i].isValid ) nDevices++;</div>
<div class="line"><a name="l04365"></a><span class="lineno"> 4365</span> </div>
<div class="line"><a name="l04366"></a><span class="lineno"> 4366</span>  <span class="keywordflow">if</span> (nDevices == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04367"></a><span class="lineno"> 4367</span> </div>
<div class="line"><a name="l04368"></a><span class="lineno"> 4368</span>  <span class="comment">// Allocate the RTAUDIO_DEVICE structures.</span></div>
<div class="line"><a name="l04369"></a><span class="lineno"> 4369</span>  devices = (RTAUDIO_DEVICE *) calloc(nDevices, <span class="keyword">sizeof</span>(RTAUDIO_DEVICE));</div>
<div class="line"><a name="l04370"></a><span class="lineno"> 4370</span>  <span class="keywordflow">if</span> (devices == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l04371"></a><span class="lineno"> 4371</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l04372"></a><span class="lineno"> 4372</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ab4f813e5a36905c89d4081a59497432e">RtError::MEMORY_ERROR</a>);</div>
<div class="line"><a name="l04373"></a><span class="lineno"> 4373</span>  }</div>
<div class="line"><a name="l04374"></a><span class="lineno"> 4374</span> </div>
<div class="line"><a name="l04375"></a><span class="lineno"> 4375</span>  <span class="comment">// Copy the names to our devices structures.</span></div>
<div class="line"><a name="l04376"></a><span class="lineno"> 4376</span>  <span class="keywordtype">int</span> index = 0;</div>
<div class="line"><a name="l04377"></a><span class="lineno"> 4377</span>  <span class="keywordflow">for</span> (i=0; i<count; i++) {</div>
<div class="line"><a name="l04378"></a><span class="lineno"> 4378</span>  <span class="keywordflow">if</span> ( info[i].isValid )</div>
<div class="line"><a name="l04379"></a><span class="lineno"> 4379</span>  strncpy(devices[index++].name, info[i].name, 64);</div>
<div class="line"><a name="l04380"></a><span class="lineno"> 4380</span>  }</div>
<div class="line"><a name="l04381"></a><span class="lineno"> 4381</span> </div>
<div class="line"><a name="l04382"></a><span class="lineno"> 4382</span>  <span class="comment">//for (i=0;i<nDevices; i++)</span></div>
<div class="line"><a name="l04383"></a><span class="lineno"> 4383</span>  <span class="comment">//probeDeviceInfo(&devices[i]);</span></div>
<div class="line"><a name="l04384"></a><span class="lineno"> 4384</span> </div>
<div class="line"><a name="l04385"></a><span class="lineno"> 4385</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04386"></a><span class="lineno"> 4386</span> }</div>
<div class="line"><a name="l04387"></a><span class="lineno"> 4387</span> </div>
<div class="line"><a name="l04388"></a><span class="lineno"> 4388</span> <span class="keywordtype">void</span> RtAudio :: probeDeviceInfo(RTAUDIO_DEVICE *info)</div>
<div class="line"><a name="l04389"></a><span class="lineno"> 4389</span> {</div>
<div class="line"><a name="l04390"></a><span class="lineno"> 4390</span>  enum_info dsinfo;</div>
<div class="line"><a name="l04391"></a><span class="lineno"> 4391</span>  strncpy( dsinfo.name, info->name, 64 );</div>
<div class="line"><a name="l04392"></a><span class="lineno"> 4392</span>  dsinfo.isValid = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04393"></a><span class="lineno"> 4393</span> </div>
<div class="line"><a name="l04394"></a><span class="lineno"> 4394</span>  <span class="comment">// Enumerate through input devices to find the id (if it exists).</span></div>
<div class="line"><a name="l04395"></a><span class="lineno"> 4395</span>  HRESULT result = DirectSoundCaptureEnumerate((LPDSENUMCALLBACK)deviceIdCallback, &dsinfo);</div>
<div class="line"><a name="l04396"></a><span class="lineno"> 4396</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04397"></a><span class="lineno"> 4397</span>  sprintf(message, <span class="stringliteral">"RtAudio: Error performing input device id enumeration: %s."</span>,</div>
<div class="line"><a name="l04398"></a><span class="lineno"> 4398</span>  getErrorString(result));</div>
<div class="line"><a name="l04399"></a><span class="lineno"> 4399</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04400"></a><span class="lineno"> 4400</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04401"></a><span class="lineno"> 4401</span>  }</div>
<div class="line"><a name="l04402"></a><span class="lineno"> 4402</span> </div>
<div class="line"><a name="l04403"></a><span class="lineno"> 4403</span>  <span class="comment">// Do capture probe first.</span></div>
<div class="line"><a name="l04404"></a><span class="lineno"> 4404</span>  <span class="keywordflow">if</span> ( dsinfo.isValid == <span class="keyword">false</span> )</div>
<div class="line"><a name="l04405"></a><span class="lineno"> 4405</span>  <span class="keywordflow">goto</span> playback_probe;</div>
<div class="line"><a name="l04406"></a><span class="lineno"> 4406</span> </div>
<div class="line"><a name="l04407"></a><span class="lineno"> 4407</span>  LPDIRECTSOUNDCAPTURE input;</div>
<div class="line"><a name="l04408"></a><span class="lineno"> 4408</span>  result = DirectSoundCaptureCreate( dsinfo.id, &input, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l04409"></a><span class="lineno"> 4409</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04410"></a><span class="lineno"> 4410</span>  sprintf(message, <span class="stringliteral">"RtAudio: Could not create DirectSound capture object (%s): %s."</span>,</div>
<div class="line"><a name="l04411"></a><span class="lineno"> 4411</span>  info->name, getErrorString(result));</div>
<div class="line"><a name="l04412"></a><span class="lineno"> 4412</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04413"></a><span class="lineno"> 4413</span>  <span class="keywordflow">goto</span> playback_probe;</div>
<div class="line"><a name="l04414"></a><span class="lineno"> 4414</span>  }</div>
<div class="line"><a name="l04415"></a><span class="lineno"> 4415</span> </div>
<div class="line"><a name="l04416"></a><span class="lineno"> 4416</span>  DSCCAPS in_caps;</div>
<div class="line"><a name="l04417"></a><span class="lineno"> 4417</span>  in_caps.dwSize = <span class="keyword">sizeof</span>(in_caps);</div>
<div class="line"><a name="l04418"></a><span class="lineno"> 4418</span>  result = input->GetCaps( &in_caps );</div>
<div class="line"><a name="l04419"></a><span class="lineno"> 4419</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04420"></a><span class="lineno"> 4420</span>  input->Release();</div>
<div class="line"><a name="l04421"></a><span class="lineno"> 4421</span>  sprintf(message, <span class="stringliteral">"RtAudio: Could not get DirectSound capture capabilities (%s): %s."</span>,</div>
<div class="line"><a name="l04422"></a><span class="lineno"> 4422</span>  info->name, getErrorString(result));</div>
<div class="line"><a name="l04423"></a><span class="lineno"> 4423</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04424"></a><span class="lineno"> 4424</span>  <span class="keywordflow">goto</span> playback_probe;</div>
<div class="line"><a name="l04425"></a><span class="lineno"> 4425</span>  }</div>
<div class="line"><a name="l04426"></a><span class="lineno"> 4426</span> </div>
<div class="line"><a name="l04427"></a><span class="lineno"> 4427</span>  <span class="comment">// Get input channel information.</span></div>
<div class="line"><a name="l04428"></a><span class="lineno"> 4428</span>  info->minInputChannels = 1;</div>
<div class="line"><a name="l04429"></a><span class="lineno"> 4429</span>  info->maxInputChannels = in_caps.dwChannels;</div>
<div class="line"><a name="l04430"></a><span class="lineno"> 4430</span> </div>
<div class="line"><a name="l04431"></a><span class="lineno"> 4431</span>  <span class="comment">// Get sample rate and format information.</span></div>
<div class="line"><a name="l04432"></a><span class="lineno"> 4432</span>  <span class="keywordflow">if</span>( in_caps.dwChannels == 2 ) {</div>
<div class="line"><a name="l04433"></a><span class="lineno"> 4433</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_1S16 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l04434"></a><span class="lineno"> 4434</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_2S16 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l04435"></a><span class="lineno"> 4435</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_4S16 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l04436"></a><span class="lineno"> 4436</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_1S08 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l04437"></a><span class="lineno"> 4437</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_2S08 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l04438"></a><span class="lineno"> 4438</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_4S08 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l04439"></a><span class="lineno"> 4439</span> </div>
<div class="line"><a name="l04440"></a><span class="lineno"> 4440</span>  <span class="keywordflow">if</span> ( info->nativeFormats & <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a> ) {</div>
<div class="line"><a name="l04441"></a><span class="lineno"> 4441</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_1S16 ) info->sampleRates[info->nSampleRates++] = 11025;</div>
<div class="line"><a name="l04442"></a><span class="lineno"> 4442</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_2S16 ) info->sampleRates[info->nSampleRates++] = 22050;</div>
<div class="line"><a name="l04443"></a><span class="lineno"> 4443</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_4S16 ) info->sampleRates[info->nSampleRates++] = 44100;</div>
<div class="line"><a name="l04444"></a><span class="lineno"> 4444</span>  }</div>
<div class="line"><a name="l04445"></a><span class="lineno"> 4445</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( info->nativeFormats & <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a> ) {</div>
<div class="line"><a name="l04446"></a><span class="lineno"> 4446</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_1S08 ) info->sampleRates[info->nSampleRates++] = 11025;</div>
<div class="line"><a name="l04447"></a><span class="lineno"> 4447</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_2S08 ) info->sampleRates[info->nSampleRates++] = 22050;</div>
<div class="line"><a name="l04448"></a><span class="lineno"> 4448</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_4S08 ) info->sampleRates[info->nSampleRates++] = 44100;</div>
<div class="line"><a name="l04449"></a><span class="lineno"> 4449</span>  }</div>
<div class="line"><a name="l04450"></a><span class="lineno"> 4450</span>  }</div>
<div class="line"><a name="l04451"></a><span class="lineno"> 4451</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( in_caps.dwChannels == 1 ) {</div>
<div class="line"><a name="l04452"></a><span class="lineno"> 4452</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_1M16 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l04453"></a><span class="lineno"> 4453</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_2M16 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l04454"></a><span class="lineno"> 4454</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_4M16 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l04455"></a><span class="lineno"> 4455</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_1M08 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l04456"></a><span class="lineno"> 4456</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_2M08 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l04457"></a><span class="lineno"> 4457</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_4M08 ) info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l04458"></a><span class="lineno"> 4458</span> </div>
<div class="line"><a name="l04459"></a><span class="lineno"> 4459</span>  <span class="keywordflow">if</span> ( info->nativeFormats & <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a> ) {</div>
<div class="line"><a name="l04460"></a><span class="lineno"> 4460</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_1M16 ) info->sampleRates[info->nSampleRates++] = 11025;</div>
<div class="line"><a name="l04461"></a><span class="lineno"> 4461</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_2M16 ) info->sampleRates[info->nSampleRates++] = 22050;</div>
<div class="line"><a name="l04462"></a><span class="lineno"> 4462</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_4M16 ) info->sampleRates[info->nSampleRates++] = 44100;</div>
<div class="line"><a name="l04463"></a><span class="lineno"> 4463</span>  }</div>
<div class="line"><a name="l04464"></a><span class="lineno"> 4464</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( info->nativeFormats & <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a> ) {</div>
<div class="line"><a name="l04465"></a><span class="lineno"> 4465</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_1M08 ) info->sampleRates[info->nSampleRates++] = 11025;</div>
<div class="line"><a name="l04466"></a><span class="lineno"> 4466</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_2M08 ) info->sampleRates[info->nSampleRates++] = 22050;</div>
<div class="line"><a name="l04467"></a><span class="lineno"> 4467</span>  <span class="keywordflow">if</span>( in_caps.dwFormats & WAVE_FORMAT_4M08 ) info->sampleRates[info->nSampleRates++] = 44100;</div>
<div class="line"><a name="l04468"></a><span class="lineno"> 4468</span>  }</div>
<div class="line"><a name="l04469"></a><span class="lineno"> 4469</span>  }</div>
<div class="line"><a name="l04470"></a><span class="lineno"> 4470</span>  <span class="keywordflow">else</span> info->minInputChannels = 0; <span class="comment">// technically, this would be an error</span></div>
<div class="line"><a name="l04471"></a><span class="lineno"> 4471</span> </div>
<div class="line"><a name="l04472"></a><span class="lineno"> 4472</span>  input->Release();</div>
<div class="line"><a name="l04473"></a><span class="lineno"> 4473</span> </div>
<div class="line"><a name="l04474"></a><span class="lineno"> 4474</span>  playback_probe:</div>
<div class="line"><a name="l04475"></a><span class="lineno"> 4475</span> </div>
<div class="line"><a name="l04476"></a><span class="lineno"> 4476</span>  dsinfo.isValid = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04477"></a><span class="lineno"> 4477</span> </div>
<div class="line"><a name="l04478"></a><span class="lineno"> 4478</span>  <span class="comment">// Enumerate through output devices to find the id (if it exists).</span></div>
<div class="line"><a name="l04479"></a><span class="lineno"> 4479</span>  result = DirectSoundEnumerate((LPDSENUMCALLBACK)deviceIdCallback, &dsinfo);</div>
<div class="line"><a name="l04480"></a><span class="lineno"> 4480</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04481"></a><span class="lineno"> 4481</span>  sprintf(message, <span class="stringliteral">"RtAudio: Error performing output device id enumeration: %s."</span>,</div>
<div class="line"><a name="l04482"></a><span class="lineno"> 4482</span>  getErrorString(result));</div>
<div class="line"><a name="l04483"></a><span class="lineno"> 4483</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04484"></a><span class="lineno"> 4484</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04485"></a><span class="lineno"> 4485</span>  }</div>
<div class="line"><a name="l04486"></a><span class="lineno"> 4486</span> </div>
<div class="line"><a name="l04487"></a><span class="lineno"> 4487</span>  <span class="comment">// Now do playback probe.</span></div>
<div class="line"><a name="l04488"></a><span class="lineno"> 4488</span>  <span class="keywordflow">if</span> ( dsinfo.isValid == <span class="keyword">false</span> )</div>
<div class="line"><a name="l04489"></a><span class="lineno"> 4489</span>  <span class="keywordflow">goto</span> check_parameters;</div>
<div class="line"><a name="l04490"></a><span class="lineno"> 4490</span> </div>
<div class="line"><a name="l04491"></a><span class="lineno"> 4491</span>  LPDIRECTSOUND output;</div>
<div class="line"><a name="l04492"></a><span class="lineno"> 4492</span>  DSCAPS out_caps;</div>
<div class="line"><a name="l04493"></a><span class="lineno"> 4493</span>  result = DirectSoundCreate( dsinfo.id, &output, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l04494"></a><span class="lineno"> 4494</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04495"></a><span class="lineno"> 4495</span>  sprintf(message, <span class="stringliteral">"RtAudio: Could not create DirectSound playback object (%s): %s."</span>,</div>
<div class="line"><a name="l04496"></a><span class="lineno"> 4496</span>  info->name, getErrorString(result));</div>
<div class="line"><a name="l04497"></a><span class="lineno"> 4497</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04498"></a><span class="lineno"> 4498</span>  <span class="keywordflow">goto</span> check_parameters;</div>
<div class="line"><a name="l04499"></a><span class="lineno"> 4499</span>  }</div>
<div class="line"><a name="l04500"></a><span class="lineno"> 4500</span> </div>
<div class="line"><a name="l04501"></a><span class="lineno"> 4501</span>  out_caps.dwSize = <span class="keyword">sizeof</span>(out_caps);</div>
<div class="line"><a name="l04502"></a><span class="lineno"> 4502</span>  result = output->GetCaps( &out_caps );</div>
<div class="line"><a name="l04503"></a><span class="lineno"> 4503</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04504"></a><span class="lineno"> 4504</span>  output->Release();</div>
<div class="line"><a name="l04505"></a><span class="lineno"> 4505</span>  sprintf(message, <span class="stringliteral">"RtAudio: Could not get DirectSound playback capabilities (%s): %s."</span>,</div>
<div class="line"><a name="l04506"></a><span class="lineno"> 4506</span>  info->name, getErrorString(result));</div>
<div class="line"><a name="l04507"></a><span class="lineno"> 4507</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04508"></a><span class="lineno"> 4508</span>  <span class="keywordflow">goto</span> check_parameters;</div>
<div class="line"><a name="l04509"></a><span class="lineno"> 4509</span>  }</div>
<div class="line"><a name="l04510"></a><span class="lineno"> 4510</span> </div>
<div class="line"><a name="l04511"></a><span class="lineno"> 4511</span>  <span class="comment">// Get output channel information.</span></div>
<div class="line"><a name="l04512"></a><span class="lineno"> 4512</span>  info->minOutputChannels = 1;</div>
<div class="line"><a name="l04513"></a><span class="lineno"> 4513</span>  info->maxOutputChannels = ( out_caps.dwFlags & DSCAPS_PRIMARYSTEREO ) ? 2 : 1;</div>
<div class="line"><a name="l04514"></a><span class="lineno"> 4514</span> </div>
<div class="line"><a name="l04515"></a><span class="lineno"> 4515</span>  <span class="comment">// Get sample rate information. Use capture device rate information</span></div>
<div class="line"><a name="l04516"></a><span class="lineno"> 4516</span>  <span class="comment">// if it exists.</span></div>
<div class="line"><a name="l04517"></a><span class="lineno"> 4517</span>  <span class="keywordflow">if</span> ( info->nSampleRates == 0 ) {</div>
<div class="line"><a name="l04518"></a><span class="lineno"> 4518</span>  info->sampleRates[0] = (int) out_caps.dwMinSecondarySampleRate;</div>
<div class="line"><a name="l04519"></a><span class="lineno"> 4519</span>  info->sampleRates[1] = (<span class="keywordtype">int</span>) out_caps.dwMaxSecondarySampleRate;</div>
<div class="line"><a name="l04520"></a><span class="lineno"> 4520</span>  <span class="keywordflow">if</span> ( out_caps.dwFlags & DSCAPS_CONTINUOUSRATE )</div>
<div class="line"><a name="l04521"></a><span class="lineno"> 4521</span>  info->nSampleRates = -1;</div>
<div class="line"><a name="l04522"></a><span class="lineno"> 4522</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( out_caps.dwMinSecondarySampleRate == out_caps.dwMaxSecondarySampleRate ) {</div>
<div class="line"><a name="l04523"></a><span class="lineno"> 4523</span>  <span class="keywordflow">if</span> ( out_caps.dwMinSecondarySampleRate == 0 ) {</div>
<div class="line"><a name="l04524"></a><span class="lineno"> 4524</span>  <span class="comment">// This is a bogus driver report ... fake the range and cross</span></div>
<div class="line"><a name="l04525"></a><span class="lineno"> 4525</span>  <span class="comment">// your fingers.</span></div>
<div class="line"><a name="l04526"></a><span class="lineno"> 4526</span>  info->sampleRates[0] = 11025;</div>
<div class="line"><a name="l04527"></a><span class="lineno"> 4527</span>  info->sampleRates[1] = 48000;</div>
<div class="line"><a name="l04528"></a><span class="lineno"> 4528</span>  info->nSampleRates = -1; <span class="comment">/* continuous range */</span></div>
<div class="line"><a name="l04529"></a><span class="lineno"> 4529</span>  sprintf(message, <span class="stringliteral">"RtAudio: bogus sample rates reported by DirectSound driver ... using defaults (%s)."</span>,</div>
<div class="line"><a name="l04530"></a><span class="lineno"> 4530</span>  info->name);</div>
<div class="line"><a name="l04531"></a><span class="lineno"> 4531</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l04532"></a><span class="lineno"> 4532</span>  }</div>
<div class="line"><a name="l04533"></a><span class="lineno"> 4533</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l04534"></a><span class="lineno"> 4534</span>  info->nSampleRates = 1;</div>
<div class="line"><a name="l04535"></a><span class="lineno"> 4535</span>  }</div>
<div class="line"><a name="l04536"></a><span class="lineno"> 4536</span>  }</div>
<div class="line"><a name="l04537"></a><span class="lineno"> 4537</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( (out_caps.dwMinSecondarySampleRate < 1000.0) &&</div>
<div class="line"><a name="l04538"></a><span class="lineno"> 4538</span>  (out_caps.dwMaxSecondarySampleRate > 50000.0) ) {</div>
<div class="line"><a name="l04539"></a><span class="lineno"> 4539</span>  <span class="comment">// This is a bogus driver report ... support for only two</span></div>
<div class="line"><a name="l04540"></a><span class="lineno"> 4540</span>  <span class="comment">// distant rates. We'll assume this is a range.</span></div>
<div class="line"><a name="l04541"></a><span class="lineno"> 4541</span>  info->nSampleRates = -1;</div>
<div class="line"><a name="l04542"></a><span class="lineno"> 4542</span>  sprintf(message, <span class="stringliteral">"RtAudio: bogus sample rates reported by DirectSound driver ... using range (%s)."</span>,</div>
<div class="line"><a name="l04543"></a><span class="lineno"> 4543</span>  info->name);</div>
<div class="line"><a name="l04544"></a><span class="lineno"> 4544</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04545"></a><span class="lineno"> 4545</span>  }</div>
<div class="line"><a name="l04546"></a><span class="lineno"> 4546</span>  <span class="keywordflow">else</span> info->nSampleRates = 2;</div>
<div class="line"><a name="l04547"></a><span class="lineno"> 4547</span>  }</div>
<div class="line"><a name="l04548"></a><span class="lineno"> 4548</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l04549"></a><span class="lineno"> 4549</span>  <span class="comment">// Check input rates against output rate range</span></div>
<div class="line"><a name="l04550"></a><span class="lineno"> 4550</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=info->nSampleRates-1; i>=0; i-- ) {</div>
<div class="line"><a name="l04551"></a><span class="lineno"> 4551</span>  <span class="keywordflow">if</span> ( info->sampleRates[i] <= out_caps.dwMaxSecondarySampleRate )</div>
<div class="line"><a name="l04552"></a><span class="lineno"> 4552</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l04553"></a><span class="lineno"> 4553</span>  info->nSampleRates--;</div>
<div class="line"><a name="l04554"></a><span class="lineno"> 4554</span>  }</div>
<div class="line"><a name="l04555"></a><span class="lineno"> 4555</span>  <span class="keywordflow">while</span> ( info->sampleRates[0] < out_caps.dwMinSecondarySampleRate ) {</div>
<div class="line"><a name="l04556"></a><span class="lineno"> 4556</span>  info->nSampleRates--;</div>
<div class="line"><a name="l04557"></a><span class="lineno"> 4557</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<info->nSampleRates; i++)</div>
<div class="line"><a name="l04558"></a><span class="lineno"> 4558</span>  info->sampleRates[i] = info->sampleRates[i+1];</div>
<div class="line"><a name="l04559"></a><span class="lineno"> 4559</span>  if ( info->nSampleRates <= 0 ) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l04560"></a><span class="lineno"> 4560</span>  }</div>
<div class="line"><a name="l04561"></a><span class="lineno"> 4561</span>  }</div>
<div class="line"><a name="l04562"></a><span class="lineno"> 4562</span> </div>
<div class="line"><a name="l04563"></a><span class="lineno"> 4563</span>  <span class="comment">// Get format information.</span></div>
<div class="line"><a name="l04564"></a><span class="lineno"> 4564</span>  <span class="keywordflow">if</span> ( out_caps.dwFlags & DSCAPS_PRIMARY16BIT ) info->nativeFormats |= <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l04565"></a><span class="lineno"> 4565</span>  <span class="keywordflow">if</span> ( out_caps.dwFlags & DSCAPS_PRIMARY8BIT ) info->nativeFormats |= <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l04566"></a><span class="lineno"> 4566</span> </div>
<div class="line"><a name="l04567"></a><span class="lineno"> 4567</span>  output->Release();</div>
<div class="line"><a name="l04568"></a><span class="lineno"> 4568</span> </div>
<div class="line"><a name="l04569"></a><span class="lineno"> 4569</span>  check_parameters:</div>
<div class="line"><a name="l04570"></a><span class="lineno"> 4570</span>  <span class="keywordflow">if</span> ( info->maxInputChannels == 0 && info->maxOutputChannels == 0 )</div>
<div class="line"><a name="l04571"></a><span class="lineno"> 4571</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04572"></a><span class="lineno"> 4572</span>  <span class="keywordflow">if</span> ( info->nSampleRates == 0 || info->nativeFormats == 0 )</div>
<div class="line"><a name="l04573"></a><span class="lineno"> 4573</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04574"></a><span class="lineno"> 4574</span> </div>
<div class="line"><a name="l04575"></a><span class="lineno"> 4575</span>  <span class="comment">// Determine duplex status.</span></div>
<div class="line"><a name="l04576"></a><span class="lineno"> 4576</span>  <span class="keywordflow">if</span> (info->maxInputChannels < info->maxOutputChannels)</div>
<div class="line"><a name="l04577"></a><span class="lineno"> 4577</span>  info->maxDuplexChannels = info->maxInputChannels;</div>
<div class="line"><a name="l04578"></a><span class="lineno"> 4578</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l04579"></a><span class="lineno"> 4579</span>  info->maxDuplexChannels = info->maxOutputChannels;</div>
<div class="line"><a name="l04580"></a><span class="lineno"> 4580</span>  <span class="keywordflow">if</span> (info->minInputChannels < info->minOutputChannels)</div>
<div class="line"><a name="l04581"></a><span class="lineno"> 4581</span>  info->minDuplexChannels = info->minInputChannels;</div>
<div class="line"><a name="l04582"></a><span class="lineno"> 4582</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l04583"></a><span class="lineno"> 4583</span>  info->minDuplexChannels = info->minOutputChannels;</div>
<div class="line"><a name="l04584"></a><span class="lineno"> 4584</span> </div>
<div class="line"><a name="l04585"></a><span class="lineno"> 4585</span>  <span class="keywordflow">if</span> ( info->maxDuplexChannels > 0 ) info->hasDuplexSupport = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04586"></a><span class="lineno"> 4586</span>  <span class="keywordflow">else</span> info->hasDuplexSupport = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04587"></a><span class="lineno"> 4587</span> </div>
<div class="line"><a name="l04588"></a><span class="lineno"> 4588</span>  info->probed = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04589"></a><span class="lineno"> 4589</span> </div>
<div class="line"><a name="l04590"></a><span class="lineno"> 4590</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04591"></a><span class="lineno"> 4591</span> }</div>
<div class="line"><a name="l04592"></a><span class="lineno"> 4592</span> </div>
<div class="line"><a name="l04593"></a><span class="lineno"> 4593</span> <span class="keywordtype">bool</span> RtAudio :: probeDeviceOpen(<span class="keywordtype">int</span> device, RTAUDIO_STREAM *stream,</div>
<div class="line"><a name="l04594"></a><span class="lineno"> 4594</span>  STREAM_MODE mode, <span class="keywordtype">int</span> channels, </div>
<div class="line"><a name="l04595"></a><span class="lineno"> 4595</span>  <span class="keywordtype">int</span> sampleRate, RTAUDIO_FORMAT format,</div>
<div class="line"><a name="l04596"></a><span class="lineno"> 4596</span>  <span class="keywordtype">int</span> *bufferSize, <span class="keywordtype">int</span> numberOfBuffers)</div>
<div class="line"><a name="l04597"></a><span class="lineno"> 4597</span> {</div>
<div class="line"><a name="l04598"></a><span class="lineno"> 4598</span>  HRESULT result;</div>
<div class="line"><a name="l04599"></a><span class="lineno"> 4599</span>  HWND hWnd = GetForegroundWindow();</div>
<div class="line"><a name="l04600"></a><span class="lineno"> 4600</span>  <span class="comment">// According to a note in PortAudio, using GetDesktopWindow()</span></div>
<div class="line"><a name="l04601"></a><span class="lineno"> 4601</span>  <span class="comment">// instead of GetForegroundWindow() is supposed to avoid problems</span></div>
<div class="line"><a name="l04602"></a><span class="lineno"> 4602</span>  <span class="comment">// that occur when the application's window is not the foreground</span></div>
<div class="line"><a name="l04603"></a><span class="lineno"> 4603</span>  <span class="comment">// window. Also, if the application window closes before the</span></div>
<div class="line"><a name="l04604"></a><span class="lineno"> 4604</span>  <span class="comment">// DirectSound buffer, DirectSound can crash. However, for console</span></div>
<div class="line"><a name="l04605"></a><span class="lineno"> 4605</span>  <span class="comment">// applications, no sound was produced when using GetDesktopWindow().</span></div>
<div class="line"><a name="l04606"></a><span class="lineno"> 4606</span>  <span class="keywordtype">long</span> buffer_size;</div>
<div class="line"><a name="l04607"></a><span class="lineno"> 4607</span>  LPVOID audioPtr;</div>
<div class="line"><a name="l04608"></a><span class="lineno"> 4608</span>  DWORD dataLen;</div>
<div class="line"><a name="l04609"></a><span class="lineno"> 4609</span>  <span class="keywordtype">int</span> nBuffers;</div>
<div class="line"><a name="l04610"></a><span class="lineno"> 4610</span> </div>
<div class="line"><a name="l04611"></a><span class="lineno"> 4611</span>  <span class="comment">// Check the numberOfBuffers parameter and limit the lowest value to</span></div>
<div class="line"><a name="l04612"></a><span class="lineno"> 4612</span>  <span class="comment">// two. This is a judgement call and a value of two is probably too</span></div>
<div class="line"><a name="l04613"></a><span class="lineno"> 4613</span>  <span class="comment">// low for capture, but it should work for playback.</span></div>
<div class="line"><a name="l04614"></a><span class="lineno"> 4614</span>  <span class="keywordflow">if</span> (numberOfBuffers < 2)</div>
<div class="line"><a name="l04615"></a><span class="lineno"> 4615</span>  nBuffers = 2;</div>
<div class="line"><a name="l04616"></a><span class="lineno"> 4616</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l04617"></a><span class="lineno"> 4617</span>  nBuffers = numberOfBuffers;</div>
<div class="line"><a name="l04618"></a><span class="lineno"> 4618</span> </div>
<div class="line"><a name="l04619"></a><span class="lineno"> 4619</span>  <span class="comment">// Define the wave format structure (16-bit PCM, srate, channels)</span></div>
<div class="line"><a name="l04620"></a><span class="lineno"> 4620</span>  WAVEFORMATEX waveFormat;</div>
<div class="line"><a name="l04621"></a><span class="lineno"> 4621</span>  ZeroMemory(&waveFormat, <span class="keyword">sizeof</span>(WAVEFORMATEX));</div>
<div class="line"><a name="l04622"></a><span class="lineno"> 4622</span>  waveFormat.wFormatTag = WAVE_FORMAT_PCM;</div>
<div class="line"><a name="l04623"></a><span class="lineno"> 4623</span>  waveFormat.nChannels = channels;</div>
<div class="line"><a name="l04624"></a><span class="lineno"> 4624</span>  waveFormat.nSamplesPerSec = (<span class="keywordtype">unsigned</span> long) sampleRate;</div>
<div class="line"><a name="l04625"></a><span class="lineno"> 4625</span> </div>
<div class="line"><a name="l04626"></a><span class="lineno"> 4626</span>  <span class="comment">// Determine the data format.</span></div>
<div class="line"><a name="l04627"></a><span class="lineno"> 4627</span>  <span class="keywordflow">if</span> ( devices[device].nativeFormats ) { <span class="comment">// 8-bit and/or 16-bit support</span></div>
<div class="line"><a name="l04628"></a><span class="lineno"> 4628</span>  <span class="keywordflow">if</span> ( format == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a> ) {</div>
<div class="line"><a name="l04629"></a><span class="lineno"> 4629</span>  <span class="keywordflow">if</span> ( devices[device].nativeFormats & <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a> )</div>
<div class="line"><a name="l04630"></a><span class="lineno"> 4630</span>  waveFormat.wBitsPerSample = 8;</div>
<div class="line"><a name="l04631"></a><span class="lineno"> 4631</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l04632"></a><span class="lineno"> 4632</span>  waveFormat.wBitsPerSample = 16;</div>
<div class="line"><a name="l04633"></a><span class="lineno"> 4633</span>  }</div>
<div class="line"><a name="l04634"></a><span class="lineno"> 4634</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l04635"></a><span class="lineno"> 4635</span>  <span class="keywordflow">if</span> ( devices[device].nativeFormats & <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a> )</div>
<div class="line"><a name="l04636"></a><span class="lineno"> 4636</span>  waveFormat.wBitsPerSample = 16;</div>
<div class="line"><a name="l04637"></a><span class="lineno"> 4637</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l04638"></a><span class="lineno"> 4638</span>  waveFormat.wBitsPerSample = 8;</div>
<div class="line"><a name="l04639"></a><span class="lineno"> 4639</span>  }</div>
<div class="line"><a name="l04640"></a><span class="lineno"> 4640</span>  }</div>
<div class="line"><a name="l04641"></a><span class="lineno"> 4641</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l04642"></a><span class="lineno"> 4642</span>  sprintf(message, <span class="stringliteral">"RtAudio: no reported data formats for DirectSound device (%s)."</span>,</div>
<div class="line"><a name="l04643"></a><span class="lineno"> 4643</span>  devices[device].name);</div>
<div class="line"><a name="l04644"></a><span class="lineno"> 4644</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l04645"></a><span class="lineno"> 4645</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04646"></a><span class="lineno"> 4646</span>  }</div>
<div class="line"><a name="l04647"></a><span class="lineno"> 4647</span> </div>
<div class="line"><a name="l04648"></a><span class="lineno"> 4648</span>  waveFormat.nBlockAlign = waveFormat.nChannels * waveFormat.wBitsPerSample / 8;</div>
<div class="line"><a name="l04649"></a><span class="lineno"> 4649</span>  waveFormat.nAvgBytesPerSec = waveFormat.nSamplesPerSec * waveFormat.nBlockAlign;</div>
<div class="line"><a name="l04650"></a><span class="lineno"> 4650</span> </div>
<div class="line"><a name="l04651"></a><span class="lineno"> 4651</span>  enum_info dsinfo;</div>
<div class="line"><a name="l04652"></a><span class="lineno"> 4652</span>  strncpy( dsinfo.name, devices[device].name, 64 );</div>
<div class="line"><a name="l04653"></a><span class="lineno"> 4653</span>  dsinfo.isValid = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04654"></a><span class="lineno"> 4654</span>  <span class="keywordflow">if</span> ( mode == OUTPUT ) {</div>
<div class="line"><a name="l04655"></a><span class="lineno"> 4655</span> </div>
<div class="line"><a name="l04656"></a><span class="lineno"> 4656</span>  <span class="keywordflow">if</span> ( devices[device].maxOutputChannels < channels )</div>
<div class="line"><a name="l04657"></a><span class="lineno"> 4657</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04658"></a><span class="lineno"> 4658</span> </div>
<div class="line"><a name="l04659"></a><span class="lineno"> 4659</span>  <span class="comment">// Enumerate through output devices to find the id (if it exists).</span></div>
<div class="line"><a name="l04660"></a><span class="lineno"> 4660</span>  result = DirectSoundEnumerate((LPDSENUMCALLBACK)deviceIdCallback, &dsinfo);</div>
<div class="line"><a name="l04661"></a><span class="lineno"> 4661</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04662"></a><span class="lineno"> 4662</span>  sprintf(message, <span class="stringliteral">"RtAudio: Error performing output device id enumeration: %s."</span>,</div>
<div class="line"><a name="l04663"></a><span class="lineno"> 4663</span>  getErrorString(result));</div>
<div class="line"><a name="l04664"></a><span class="lineno"> 4664</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l04665"></a><span class="lineno"> 4665</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04666"></a><span class="lineno"> 4666</span>  }</div>
<div class="line"><a name="l04667"></a><span class="lineno"> 4667</span> </div>
<div class="line"><a name="l04668"></a><span class="lineno"> 4668</span>  <span class="keywordflow">if</span> ( dsinfo.isValid == <span class="keyword">false</span> ) {</div>
<div class="line"><a name="l04669"></a><span class="lineno"> 4669</span>  sprintf(message, <span class="stringliteral">"RtAudio: DS output device (%s) id not found!"</span>, devices[device].name);</div>
<div class="line"><a name="l04670"></a><span class="lineno"> 4670</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l04671"></a><span class="lineno"> 4671</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04672"></a><span class="lineno"> 4672</span>  }</div>
<div class="line"><a name="l04673"></a><span class="lineno"> 4673</span> </div>
<div class="line"><a name="l04674"></a><span class="lineno"> 4674</span>  LPGUID <span class="keywordtype">id</span> = dsinfo.id;</div>
<div class="line"><a name="l04675"></a><span class="lineno"> 4675</span>  LPDIRECTSOUND object;</div>
<div class="line"><a name="l04676"></a><span class="lineno"> 4676</span>  LPDIRECTSOUNDBUFFER buffer;</div>
<div class="line"><a name="l04677"></a><span class="lineno"> 4677</span>  DSBUFFERDESC bufferDescription;</div>
<div class="line"><a name="l04678"></a><span class="lineno"> 4678</span>  </div>
<div class="line"><a name="l04679"></a><span class="lineno"> 4679</span>  result = DirectSoundCreate( <span class="keywordtype">id</span>, &<span class="keywordtype">object</span>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l04680"></a><span class="lineno"> 4680</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04681"></a><span class="lineno"> 4681</span>  sprintf(message, <span class="stringliteral">"RtAudio: Could not create DirectSound playback object (%s): %s."</span>,</div>
<div class="line"><a name="l04682"></a><span class="lineno"> 4682</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04683"></a><span class="lineno"> 4683</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l04684"></a><span class="lineno"> 4684</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04685"></a><span class="lineno"> 4685</span>  }</div>
<div class="line"><a name="l04686"></a><span class="lineno"> 4686</span> </div>
<div class="line"><a name="l04687"></a><span class="lineno"> 4687</span>  <span class="comment">// Set cooperative level to DSSCL_EXCLUSIVE</span></div>
<div class="line"><a name="l04688"></a><span class="lineno"> 4688</span>  result = <span class="keywordtype">object</span>->SetCooperativeLevel(hWnd, DSSCL_EXCLUSIVE);</div>
<div class="line"><a name="l04689"></a><span class="lineno"> 4689</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04690"></a><span class="lineno"> 4690</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04691"></a><span class="lineno"> 4691</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to set DirectSound cooperative level (%s): %s."</span>,</div>
<div class="line"><a name="l04692"></a><span class="lineno"> 4692</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04693"></a><span class="lineno"> 4693</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04694"></a><span class="lineno"> 4694</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04695"></a><span class="lineno"> 4695</span>  }</div>
<div class="line"><a name="l04696"></a><span class="lineno"> 4696</span> </div>
<div class="line"><a name="l04697"></a><span class="lineno"> 4697</span>  <span class="comment">// Even though we will write to the secondary buffer, we need to</span></div>
<div class="line"><a name="l04698"></a><span class="lineno"> 4698</span>  <span class="comment">// access the primary buffer to set the correct output format.</span></div>
<div class="line"><a name="l04699"></a><span class="lineno"> 4699</span>  <span class="comment">// The default is 8-bit, 22 kHz!</span></div>
<div class="line"><a name="l04700"></a><span class="lineno"> 4700</span>  <span class="comment">// Setup the DS primary buffer description.</span></div>
<div class="line"><a name="l04701"></a><span class="lineno"> 4701</span>  ZeroMemory(&bufferDescription, <span class="keyword">sizeof</span>(DSBUFFERDESC));</div>
<div class="line"><a name="l04702"></a><span class="lineno"> 4702</span>  bufferDescription.dwSize = <span class="keyword">sizeof</span>(DSBUFFERDESC);</div>
<div class="line"><a name="l04703"></a><span class="lineno"> 4703</span>  bufferDescription.dwFlags = DSBCAPS_PRIMARYBUFFER;</div>
<div class="line"><a name="l04704"></a><span class="lineno"> 4704</span>  <span class="comment">// Obtain the primary buffer</span></div>
<div class="line"><a name="l04705"></a><span class="lineno"> 4705</span>  result = <span class="keywordtype">object</span>->CreateSoundBuffer(&bufferDescription, &buffer, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l04706"></a><span class="lineno"> 4706</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04707"></a><span class="lineno"> 4707</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04708"></a><span class="lineno"> 4708</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to access DS primary buffer (%s): %s."</span>,</div>
<div class="line"><a name="l04709"></a><span class="lineno"> 4709</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04710"></a><span class="lineno"> 4710</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04711"></a><span class="lineno"> 4711</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04712"></a><span class="lineno"> 4712</span>  }</div>
<div class="line"><a name="l04713"></a><span class="lineno"> 4713</span> </div>
<div class="line"><a name="l04714"></a><span class="lineno"> 4714</span>  <span class="comment">// Set the primary DS buffer sound format.</span></div>
<div class="line"><a name="l04715"></a><span class="lineno"> 4715</span>  result = buffer->SetFormat(&waveFormat);</div>
<div class="line"><a name="l04716"></a><span class="lineno"> 4716</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04717"></a><span class="lineno"> 4717</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04718"></a><span class="lineno"> 4718</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to set DS primary buffer format (%s): %s."</span>,</div>
<div class="line"><a name="l04719"></a><span class="lineno"> 4719</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04720"></a><span class="lineno"> 4720</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04721"></a><span class="lineno"> 4721</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04722"></a><span class="lineno"> 4722</span>  }</div>
<div class="line"><a name="l04723"></a><span class="lineno"> 4723</span> </div>
<div class="line"><a name="l04724"></a><span class="lineno"> 4724</span>  <span class="comment">// Setup the secondary DS buffer description.</span></div>
<div class="line"><a name="l04725"></a><span class="lineno"> 4725</span>  buffer_size = channels * *bufferSize * nBuffers * waveFormat.wBitsPerSample / 8;</div>
<div class="line"><a name="l04726"></a><span class="lineno"> 4726</span>  ZeroMemory(&bufferDescription, <span class="keyword">sizeof</span>(DSBUFFERDESC));</div>
<div class="line"><a name="l04727"></a><span class="lineno"> 4727</span>  bufferDescription.dwSize = <span class="keyword">sizeof</span>(DSBUFFERDESC);</div>
<div class="line"><a name="l04728"></a><span class="lineno"> 4728</span>  bufferDescription.dwFlags = ( DSBCAPS_STICKYFOCUS |</div>
<div class="line"><a name="l04729"></a><span class="lineno"> 4729</span>  DSBCAPS_GETCURRENTPOSITION2 |</div>
<div class="line"><a name="l04730"></a><span class="lineno"> 4730</span>  DSBCAPS_LOCHARDWARE ); <span class="comment">// Force hardware mixing</span></div>
<div class="line"><a name="l04731"></a><span class="lineno"> 4731</span>  bufferDescription.dwBufferBytes = buffer_size;</div>
<div class="line"><a name="l04732"></a><span class="lineno"> 4732</span>  bufferDescription.lpwfxFormat = &waveFormat;</div>
<div class="line"><a name="l04733"></a><span class="lineno"> 4733</span> </div>
<div class="line"><a name="l04734"></a><span class="lineno"> 4734</span>  <span class="comment">// Try to create the secondary DS buffer. If that doesn't work,</span></div>
<div class="line"><a name="l04735"></a><span class="lineno"> 4735</span>  <span class="comment">// try to use software mixing. Otherwise, there's a problem.</span></div>
<div class="line"><a name="l04736"></a><span class="lineno"> 4736</span>  result = <span class="keywordtype">object</span>->CreateSoundBuffer(&bufferDescription, &buffer, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l04737"></a><span class="lineno"> 4737</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04738"></a><span class="lineno"> 4738</span>  bufferDescription.dwFlags = ( DSBCAPS_STICKYFOCUS |</div>
<div class="line"><a name="l04739"></a><span class="lineno"> 4739</span>  DSBCAPS_GETCURRENTPOSITION2 |</div>
<div class="line"><a name="l04740"></a><span class="lineno"> 4740</span>  DSBCAPS_LOCSOFTWARE ); <span class="comment">// Force software mixing</span></div>
<div class="line"><a name="l04741"></a><span class="lineno"> 4741</span>  result = <span class="keywordtype">object</span>->CreateSoundBuffer(&bufferDescription, &buffer, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l04742"></a><span class="lineno"> 4742</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04743"></a><span class="lineno"> 4743</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04744"></a><span class="lineno"> 4744</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to create secondary DS buffer (%s): %s."</span>,</div>
<div class="line"><a name="l04745"></a><span class="lineno"> 4745</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04746"></a><span class="lineno"> 4746</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04747"></a><span class="lineno"> 4747</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04748"></a><span class="lineno"> 4748</span>  }</div>
<div class="line"><a name="l04749"></a><span class="lineno"> 4749</span>  }</div>
<div class="line"><a name="l04750"></a><span class="lineno"> 4750</span> </div>
<div class="line"><a name="l04751"></a><span class="lineno"> 4751</span>  <span class="comment">// Get the buffer size ... might be different from what we specified.</span></div>
<div class="line"><a name="l04752"></a><span class="lineno"> 4752</span>  DSBCAPS dsbcaps;</div>
<div class="line"><a name="l04753"></a><span class="lineno"> 4753</span>  dsbcaps.dwSize = <span class="keyword">sizeof</span>(DSBCAPS);</div>
<div class="line"><a name="l04754"></a><span class="lineno"> 4754</span>  buffer->GetCaps(&dsbcaps);</div>
<div class="line"><a name="l04755"></a><span class="lineno"> 4755</span>  buffer_size = dsbcaps.dwBufferBytes;</div>
<div class="line"><a name="l04756"></a><span class="lineno"> 4756</span> </div>
<div class="line"><a name="l04757"></a><span class="lineno"> 4757</span>  <span class="comment">// Lock the DS buffer</span></div>
<div class="line"><a name="l04758"></a><span class="lineno"> 4758</span>  result = buffer->Lock(0, buffer_size, &audioPtr, &dataLen, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l04759"></a><span class="lineno"> 4759</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04760"></a><span class="lineno"> 4760</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04761"></a><span class="lineno"> 4761</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to lock DS buffer (%s): %s."</span>,</div>
<div class="line"><a name="l04762"></a><span class="lineno"> 4762</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04763"></a><span class="lineno"> 4763</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04764"></a><span class="lineno"> 4764</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04765"></a><span class="lineno"> 4765</span>  }</div>
<div class="line"><a name="l04766"></a><span class="lineno"> 4766</span> </div>
<div class="line"><a name="l04767"></a><span class="lineno"> 4767</span>  <span class="comment">// Zero the DS buffer</span></div>
<div class="line"><a name="l04768"></a><span class="lineno"> 4768</span>  ZeroMemory(audioPtr, dataLen);</div>
<div class="line"><a name="l04769"></a><span class="lineno"> 4769</span> </div>
<div class="line"><a name="l04770"></a><span class="lineno"> 4770</span>  <span class="comment">// Unlock the DS buffer</span></div>
<div class="line"><a name="l04771"></a><span class="lineno"> 4771</span>  result = buffer->Unlock(audioPtr, dataLen, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l04772"></a><span class="lineno"> 4772</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04773"></a><span class="lineno"> 4773</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04774"></a><span class="lineno"> 4774</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to unlock DS buffer(%s): %s."</span>,</div>
<div class="line"><a name="l04775"></a><span class="lineno"> 4775</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04776"></a><span class="lineno"> 4776</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04777"></a><span class="lineno"> 4777</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04778"></a><span class="lineno"> 4778</span>  }</div>
<div class="line"><a name="l04779"></a><span class="lineno"> 4779</span> </div>
<div class="line"><a name="l04780"></a><span class="lineno"> 4780</span>  stream->handle[0].object = (<span class="keywordtype">void</span> *) <span class="keywordtype">object</span>;</div>
<div class="line"><a name="l04781"></a><span class="lineno"> 4781</span>  stream->handle[0].buffer = (<span class="keywordtype">void</span> *) buffer;</div>
<div class="line"><a name="l04782"></a><span class="lineno"> 4782</span>  stream->nDeviceChannels[0] = channels;</div>
<div class="line"><a name="l04783"></a><span class="lineno"> 4783</span>  }</div>
<div class="line"><a name="l04784"></a><span class="lineno"> 4784</span> </div>
<div class="line"><a name="l04785"></a><span class="lineno"> 4785</span>  <span class="keywordflow">if</span> ( mode == INPUT ) {</div>
<div class="line"><a name="l04786"></a><span class="lineno"> 4786</span> </div>
<div class="line"><a name="l04787"></a><span class="lineno"> 4787</span>  <span class="keywordflow">if</span> ( devices[device].maxInputChannels < channels )</div>
<div class="line"><a name="l04788"></a><span class="lineno"> 4788</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04789"></a><span class="lineno"> 4789</span> </div>
<div class="line"><a name="l04790"></a><span class="lineno"> 4790</span>  <span class="comment">// Enumerate through input devices to find the id (if it exists).</span></div>
<div class="line"><a name="l04791"></a><span class="lineno"> 4791</span>  result = DirectSoundCaptureEnumerate((LPDSENUMCALLBACK)deviceIdCallback, &dsinfo);</div>
<div class="line"><a name="l04792"></a><span class="lineno"> 4792</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04793"></a><span class="lineno"> 4793</span>  sprintf(message, <span class="stringliteral">"RtAudio: Error performing input device id enumeration: %s."</span>,</div>
<div class="line"><a name="l04794"></a><span class="lineno"> 4794</span>  getErrorString(result));</div>
<div class="line"><a name="l04795"></a><span class="lineno"> 4795</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l04796"></a><span class="lineno"> 4796</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04797"></a><span class="lineno"> 4797</span>  }</div>
<div class="line"><a name="l04798"></a><span class="lineno"> 4798</span> </div>
<div class="line"><a name="l04799"></a><span class="lineno"> 4799</span>  <span class="keywordflow">if</span> ( dsinfo.isValid == <span class="keyword">false</span> ) {</div>
<div class="line"><a name="l04800"></a><span class="lineno"> 4800</span>  sprintf(message, <span class="stringliteral">"RtAudio: DS input device (%s) id not found!"</span>, devices[device].name);</div>
<div class="line"><a name="l04801"></a><span class="lineno"> 4801</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>);</div>
<div class="line"><a name="l04802"></a><span class="lineno"> 4802</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04803"></a><span class="lineno"> 4803</span>  }</div>
<div class="line"><a name="l04804"></a><span class="lineno"> 4804</span> </div>
<div class="line"><a name="l04805"></a><span class="lineno"> 4805</span>  LPGUID <span class="keywordtype">id</span> = dsinfo.id;</div>
<div class="line"><a name="l04806"></a><span class="lineno"> 4806</span>  LPDIRECTSOUNDCAPTURE object;</div>
<div class="line"><a name="l04807"></a><span class="lineno"> 4807</span>  LPDIRECTSOUNDCAPTUREBUFFER buffer;</div>
<div class="line"><a name="l04808"></a><span class="lineno"> 4808</span>  DSCBUFFERDESC bufferDescription;</div>
<div class="line"><a name="l04809"></a><span class="lineno"> 4809</span> </div>
<div class="line"><a name="l04810"></a><span class="lineno"> 4810</span>  result = DirectSoundCaptureCreate( <span class="keywordtype">id</span>, &<span class="keywordtype">object</span>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l04811"></a><span class="lineno"> 4811</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04812"></a><span class="lineno"> 4812</span>  sprintf(message, <span class="stringliteral">"RtAudio: Could not create DirectSound capture object (%s): %s."</span>,</div>
<div class="line"><a name="l04813"></a><span class="lineno"> 4813</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04814"></a><span class="lineno"> 4814</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04815"></a><span class="lineno"> 4815</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04816"></a><span class="lineno"> 4816</span>  }</div>
<div class="line"><a name="l04817"></a><span class="lineno"> 4817</span> </div>
<div class="line"><a name="l04818"></a><span class="lineno"> 4818</span>  <span class="comment">// Setup the secondary DS buffer description.</span></div>
<div class="line"><a name="l04819"></a><span class="lineno"> 4819</span>  buffer_size = channels * *bufferSize * nBuffers * waveFormat.wBitsPerSample / 8;</div>
<div class="line"><a name="l04820"></a><span class="lineno"> 4820</span>  ZeroMemory(&bufferDescription, <span class="keyword">sizeof</span>(DSCBUFFERDESC));</div>
<div class="line"><a name="l04821"></a><span class="lineno"> 4821</span>  bufferDescription.dwSize = <span class="keyword">sizeof</span>(DSCBUFFERDESC);</div>
<div class="line"><a name="l04822"></a><span class="lineno"> 4822</span>  bufferDescription.dwFlags = 0;</div>
<div class="line"><a name="l04823"></a><span class="lineno"> 4823</span>  bufferDescription.dwReserved = 0;</div>
<div class="line"><a name="l04824"></a><span class="lineno"> 4824</span>  bufferDescription.dwBufferBytes = buffer_size;</div>
<div class="line"><a name="l04825"></a><span class="lineno"> 4825</span>  bufferDescription.lpwfxFormat = &waveFormat;</div>
<div class="line"><a name="l04826"></a><span class="lineno"> 4826</span> </div>
<div class="line"><a name="l04827"></a><span class="lineno"> 4827</span>  <span class="comment">// Create the capture buffer.</span></div>
<div class="line"><a name="l04828"></a><span class="lineno"> 4828</span>  result = <span class="keywordtype">object</span>->CreateCaptureBuffer(&bufferDescription, &buffer, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l04829"></a><span class="lineno"> 4829</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04830"></a><span class="lineno"> 4830</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04831"></a><span class="lineno"> 4831</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to create DS capture buffer (%s): %s."</span>,</div>
<div class="line"><a name="l04832"></a><span class="lineno"> 4832</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04833"></a><span class="lineno"> 4833</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04834"></a><span class="lineno"> 4834</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04835"></a><span class="lineno"> 4835</span>  }</div>
<div class="line"><a name="l04836"></a><span class="lineno"> 4836</span> </div>
<div class="line"><a name="l04837"></a><span class="lineno"> 4837</span>  <span class="comment">// Lock the capture buffer</span></div>
<div class="line"><a name="l04838"></a><span class="lineno"> 4838</span>  result = buffer->Lock(0, buffer_size, &audioPtr, &dataLen, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l04839"></a><span class="lineno"> 4839</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04840"></a><span class="lineno"> 4840</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04841"></a><span class="lineno"> 4841</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to lock DS capture buffer (%s): %s."</span>,</div>
<div class="line"><a name="l04842"></a><span class="lineno"> 4842</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04843"></a><span class="lineno"> 4843</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04844"></a><span class="lineno"> 4844</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04845"></a><span class="lineno"> 4845</span>  }</div>
<div class="line"><a name="l04846"></a><span class="lineno"> 4846</span> </div>
<div class="line"><a name="l04847"></a><span class="lineno"> 4847</span>  <span class="comment">// Zero the buffer</span></div>
<div class="line"><a name="l04848"></a><span class="lineno"> 4848</span>  ZeroMemory(audioPtr, dataLen);</div>
<div class="line"><a name="l04849"></a><span class="lineno"> 4849</span> </div>
<div class="line"><a name="l04850"></a><span class="lineno"> 4850</span>  <span class="comment">// Unlock the buffer</span></div>
<div class="line"><a name="l04851"></a><span class="lineno"> 4851</span>  result = buffer->Unlock(audioPtr, dataLen, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l04852"></a><span class="lineno"> 4852</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l04853"></a><span class="lineno"> 4853</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04854"></a><span class="lineno"> 4854</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to unlock DS capture buffer (%s): %s."</span>,</div>
<div class="line"><a name="l04855"></a><span class="lineno"> 4855</span>  devices[device].name, getErrorString(result));</div>
<div class="line"><a name="l04856"></a><span class="lineno"> 4856</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04857"></a><span class="lineno"> 4857</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04858"></a><span class="lineno"> 4858</span>  }</div>
<div class="line"><a name="l04859"></a><span class="lineno"> 4859</span> </div>
<div class="line"><a name="l04860"></a><span class="lineno"> 4860</span>  stream->handle[1].object = (<span class="keywordtype">void</span> *) <span class="keywordtype">object</span>;</div>
<div class="line"><a name="l04861"></a><span class="lineno"> 4861</span>  stream->handle[1].buffer = (<span class="keywordtype">void</span> *) buffer;</div>
<div class="line"><a name="l04862"></a><span class="lineno"> 4862</span>  stream->nDeviceChannels[1] = channels;</div>
<div class="line"><a name="l04863"></a><span class="lineno"> 4863</span>  }</div>
<div class="line"><a name="l04864"></a><span class="lineno"> 4864</span> </div>
<div class="line"><a name="l04865"></a><span class="lineno"> 4865</span>  stream->userFormat = format;</div>
<div class="line"><a name="l04866"></a><span class="lineno"> 4866</span>  <span class="keywordflow">if</span> ( waveFormat.wBitsPerSample == 8 )</div>
<div class="line"><a name="l04867"></a><span class="lineno"> 4867</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>;</div>
<div class="line"><a name="l04868"></a><span class="lineno"> 4868</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l04869"></a><span class="lineno"> 4869</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>;</div>
<div class="line"><a name="l04870"></a><span class="lineno"> 4870</span>  stream->nUserChannels[mode] = channels;</div>
<div class="line"><a name="l04871"></a><span class="lineno"> 4871</span>  *bufferSize = buffer_size / (channels * nBuffers * waveFormat.wBitsPerSample / 8);</div>
<div class="line"><a name="l04872"></a><span class="lineno"> 4872</span>  stream->bufferSize = *bufferSize;</div>
<div class="line"><a name="l04873"></a><span class="lineno"> 4873</span> </div>
<div class="line"><a name="l04874"></a><span class="lineno"> 4874</span>  <span class="comment">// Set flags for buffer conversion</span></div>
<div class="line"><a name="l04875"></a><span class="lineno"> 4875</span>  stream->doConvertBuffer[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04876"></a><span class="lineno"> 4876</span>  <span class="keywordflow">if</span> (stream->userFormat != stream->deviceFormat[mode])</div>
<div class="line"><a name="l04877"></a><span class="lineno"> 4877</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04878"></a><span class="lineno"> 4878</span>  <span class="keywordflow">if</span> (stream->nUserChannels[mode] < stream->nDeviceChannels[mode])</div>
<div class="line"><a name="l04879"></a><span class="lineno"> 4879</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04880"></a><span class="lineno"> 4880</span> </div>
<div class="line"><a name="l04881"></a><span class="lineno"> 4881</span>  <span class="comment">// Allocate necessary internal buffers</span></div>
<div class="line"><a name="l04882"></a><span class="lineno"> 4882</span>  <span class="keywordflow">if</span> ( stream->nUserChannels[0] != stream->nUserChannels[1] ) {</div>
<div class="line"><a name="l04883"></a><span class="lineno"> 4883</span> </div>
<div class="line"><a name="l04884"></a><span class="lineno"> 4884</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l04885"></a><span class="lineno"> 4885</span>  <span class="keywordflow">if</span> (stream->nUserChannels[0] >= stream->nUserChannels[1])</div>
<div class="line"><a name="l04886"></a><span class="lineno"> 4886</span>  buffer_bytes = stream->nUserChannels[0];</div>
<div class="line"><a name="l04887"></a><span class="lineno"> 4887</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l04888"></a><span class="lineno"> 4888</span>  buffer_bytes = stream->nUserChannels[1];</div>
<div class="line"><a name="l04889"></a><span class="lineno"> 4889</span> </div>
<div class="line"><a name="l04890"></a><span class="lineno"> 4890</span>  buffer_bytes *= *bufferSize * formatBytes(stream->userFormat);</div>
<div class="line"><a name="l04891"></a><span class="lineno"> 4891</span>  <span class="keywordflow">if</span> (stream->userBuffer) free(stream->userBuffer);</div>
<div class="line"><a name="l04892"></a><span class="lineno"> 4892</span>  stream->userBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l04893"></a><span class="lineno"> 4893</span>  <span class="keywordflow">if</span> (stream->userBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l04894"></a><span class="lineno"> 4894</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l04895"></a><span class="lineno"> 4895</span>  }</div>
<div class="line"><a name="l04896"></a><span class="lineno"> 4896</span> </div>
<div class="line"><a name="l04897"></a><span class="lineno"> 4897</span>  <span class="keywordflow">if</span> ( stream->doConvertBuffer[mode] ) {</div>
<div class="line"><a name="l04898"></a><span class="lineno"> 4898</span> </div>
<div class="line"><a name="l04899"></a><span class="lineno"> 4899</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l04900"></a><span class="lineno"> 4900</span>  <span class="keywordtype">bool</span> makeBuffer = <span class="keyword">true</span>;</div>
<div class="line"><a name="l04901"></a><span class="lineno"> 4901</span>  <span class="keywordflow">if</span> ( mode == OUTPUT )</div>
<div class="line"><a name="l04902"></a><span class="lineno"> 4902</span>  buffer_bytes = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l04903"></a><span class="lineno"> 4903</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l04904"></a><span class="lineno"> 4904</span>  buffer_bytes = stream->nDeviceChannels[1] * formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l04905"></a><span class="lineno"> 4905</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && stream->deviceBuffer ) {</div>
<div class="line"><a name="l04906"></a><span class="lineno"> 4906</span>  <span class="keywordtype">long</span> bytes_out = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l04907"></a><span class="lineno"> 4907</span>  <span class="keywordflow">if</span> ( buffer_bytes < bytes_out ) makeBuffer = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04908"></a><span class="lineno"> 4908</span>  }</div>
<div class="line"><a name="l04909"></a><span class="lineno"> 4909</span>  }</div>
<div class="line"><a name="l04910"></a><span class="lineno"> 4910</span> </div>
<div class="line"><a name="l04911"></a><span class="lineno"> 4911</span>  <span class="keywordflow">if</span> ( makeBuffer ) {</div>
<div class="line"><a name="l04912"></a><span class="lineno"> 4912</span>  buffer_bytes *= *bufferSize;</div>
<div class="line"><a name="l04913"></a><span class="lineno"> 4913</span>  <span class="keywordflow">if</span> (stream->deviceBuffer) free(stream->deviceBuffer);</div>
<div class="line"><a name="l04914"></a><span class="lineno"> 4914</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l04915"></a><span class="lineno"> 4915</span>  <span class="keywordflow">if</span> (stream->deviceBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l04916"></a><span class="lineno"> 4916</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l04917"></a><span class="lineno"> 4917</span>  }</div>
<div class="line"><a name="l04918"></a><span class="lineno"> 4918</span>  }</div>
<div class="line"><a name="l04919"></a><span class="lineno"> 4919</span> </div>
<div class="line"><a name="l04920"></a><span class="lineno"> 4920</span>  stream->device[mode] = device;</div>
<div class="line"><a name="l04921"></a><span class="lineno"> 4921</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l04922"></a><span class="lineno"> 4922</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && mode == INPUT )</div>
<div class="line"><a name="l04923"></a><span class="lineno"> 4923</span>  <span class="comment">// We had already set up an output stream.</span></div>
<div class="line"><a name="l04924"></a><span class="lineno"> 4924</span>  stream->mode = DUPLEX;</div>
<div class="line"><a name="l04925"></a><span class="lineno"> 4925</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l04926"></a><span class="lineno"> 4926</span>  stream->mode = mode;</div>
<div class="line"><a name="l04927"></a><span class="lineno"> 4927</span>  stream->nBuffers = nBuffers;</div>
<div class="line"><a name="l04928"></a><span class="lineno"> 4928</span>  stream->sampleRate = sampleRate;</div>
<div class="line"><a name="l04929"></a><span class="lineno"> 4929</span> </div>
<div class="line"><a name="l04930"></a><span class="lineno"> 4930</span>  <span class="keywordflow">return</span> SUCCESS;</div>
<div class="line"><a name="l04931"></a><span class="lineno"> 4931</span> </div>
<div class="line"><a name="l04932"></a><span class="lineno"> 4932</span>  memory_error:</div>
<div class="line"><a name="l04933"></a><span class="lineno"> 4933</span>  <span class="keywordflow">if</span> (stream->handle[0].object) {</div>
<div class="line"><a name="l04934"></a><span class="lineno"> 4934</span>  LPDIRECTSOUND <span class="keywordtype">object</span> = (LPDIRECTSOUND) stream->handle[0].object;</div>
<div class="line"><a name="l04935"></a><span class="lineno"> 4935</span>  LPDIRECTSOUNDBUFFER buffer = (LPDIRECTSOUNDBUFFER) stream->handle[0].buffer;</div>
<div class="line"><a name="l04936"></a><span class="lineno"> 4936</span>  <span class="keywordflow">if</span> (buffer) {</div>
<div class="line"><a name="l04937"></a><span class="lineno"> 4937</span>  buffer->Release();</div>
<div class="line"><a name="l04938"></a><span class="lineno"> 4938</span>  stream->handle[0].buffer = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l04939"></a><span class="lineno"> 4939</span>  }</div>
<div class="line"><a name="l04940"></a><span class="lineno"> 4940</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04941"></a><span class="lineno"> 4941</span>  stream->handle[0].object = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l04942"></a><span class="lineno"> 4942</span>  }</div>
<div class="line"><a name="l04943"></a><span class="lineno"> 4943</span>  <span class="keywordflow">if</span> (stream->handle[1].object) {</div>
<div class="line"><a name="l04944"></a><span class="lineno"> 4944</span>  LPDIRECTSOUNDCAPTURE <span class="keywordtype">object</span> = (LPDIRECTSOUNDCAPTURE) stream->handle[1].object;</div>
<div class="line"><a name="l04945"></a><span class="lineno"> 4945</span>  LPDIRECTSOUNDCAPTUREBUFFER buffer = (LPDIRECTSOUNDCAPTUREBUFFER) stream->handle[1].buffer;</div>
<div class="line"><a name="l04946"></a><span class="lineno"> 4946</span>  <span class="keywordflow">if</span> (buffer) {</div>
<div class="line"><a name="l04947"></a><span class="lineno"> 4947</span>  buffer->Release();</div>
<div class="line"><a name="l04948"></a><span class="lineno"> 4948</span>  stream->handle[1].buffer = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l04949"></a><span class="lineno"> 4949</span>  }</div>
<div class="line"><a name="l04950"></a><span class="lineno"> 4950</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l04951"></a><span class="lineno"> 4951</span>  stream->handle[1].object = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l04952"></a><span class="lineno"> 4952</span>  }</div>
<div class="line"><a name="l04953"></a><span class="lineno"> 4953</span>  <span class="keywordflow">if</span> (stream->userBuffer) {</div>
<div class="line"><a name="l04954"></a><span class="lineno"> 4954</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l04955"></a><span class="lineno"> 4955</span>  stream->userBuffer = 0;</div>
<div class="line"><a name="l04956"></a><span class="lineno"> 4956</span>  }</div>
<div class="line"><a name="l04957"></a><span class="lineno"> 4957</span>  sprintf(message, <span class="stringliteral">"RtAudio: error allocating buffer memory (%s)."</span>,</div>
<div class="line"><a name="l04958"></a><span class="lineno"> 4958</span>  devices[device].name);</div>
<div class="line"><a name="l04959"></a><span class="lineno"> 4959</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04960"></a><span class="lineno"> 4960</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l04961"></a><span class="lineno"> 4961</span> }</div>
<div class="line"><a name="l04962"></a><span class="lineno"> 4962</span> </div>
<div class="line"><a name="l04963"></a><span class="lineno"> 4963</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#aebae35586a358dd4c6826801031479e1" title="A public method which cancels a callback process and function for a given stream.">RtAudio :: cancelStreamCallback</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l04964"></a><span class="lineno"> 4964</span> {</div>
<div class="line"><a name="l04965"></a><span class="lineno"> 4965</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l04966"></a><span class="lineno"> 4966</span> </div>
<div class="line"><a name="l04967"></a><span class="lineno"> 4967</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l04968"></a><span class="lineno"> 4968</span> </div>
<div class="line"><a name="l04969"></a><span class="lineno"> 4969</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l04970"></a><span class="lineno"> 4970</span>  <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>( streamId );</div>
<div class="line"><a name="l04971"></a><span class="lineno"> 4971</span> </div>
<div class="line"><a name="l04972"></a><span class="lineno"> 4972</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04973"></a><span class="lineno"> 4973</span> </div>
<div class="line"><a name="l04974"></a><span class="lineno"> 4974</span>  stream->callbackInfo.usingCallback = <span class="keyword">false</span>;</div>
<div class="line"><a name="l04975"></a><span class="lineno"> 4975</span>  WaitForSingleObject( (HANDLE)stream->callbackInfo.thread, INFINITE );</div>
<div class="line"><a name="l04976"></a><span class="lineno"> 4976</span>  CloseHandle( (HANDLE)stream->callbackInfo.thread );</div>
<div class="line"><a name="l04977"></a><span class="lineno"> 4977</span>  stream->callbackInfo.thread = 0;</div>
<div class="line"><a name="l04978"></a><span class="lineno"> 4978</span>  stream->callbackInfo.callback = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l04979"></a><span class="lineno"> 4979</span>  stream->callbackInfo.userData = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l04980"></a><span class="lineno"> 4980</span> </div>
<div class="line"><a name="l04981"></a><span class="lineno"> 4981</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l04982"></a><span class="lineno"> 4982</span>  }</div>
<div class="line"><a name="l04983"></a><span class="lineno"> 4983</span> }</div>
<div class="line"><a name="l04984"></a><span class="lineno"> 4984</span> </div>
<div class="line"><a name="l04985"></a><span class="lineno"> 4985</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a9b25382cabd65d739f2718f8647f1066" title="Public method which closes a stream and frees any associated buffers.">RtAudio :: closeStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l04986"></a><span class="lineno"> 4986</span> {</div>
<div class="line"><a name="l04987"></a><span class="lineno"> 4987</span>  <span class="comment">// We don't want an exception to be thrown here because this</span></div>
<div class="line"><a name="l04988"></a><span class="lineno"> 4988</span>  <span class="comment">// function is called by our class destructor. So, do our own</span></div>
<div class="line"><a name="l04989"></a><span class="lineno"> 4989</span>  <span class="comment">// streamId check.</span></div>
<div class="line"><a name="l04990"></a><span class="lineno"> 4990</span>  <span class="keywordflow">if</span> ( streams.find( streamId ) == streams.end() ) {</div>
<div class="line"><a name="l04991"></a><span class="lineno"> 4991</span>  sprintf(message, <span class="stringliteral">"RtAudio: invalid stream identifier!"</span>);</div>
<div class="line"><a name="l04992"></a><span class="lineno"> 4992</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l04993"></a><span class="lineno"> 4993</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l04994"></a><span class="lineno"> 4994</span>  }</div>
<div class="line"><a name="l04995"></a><span class="lineno"> 4995</span> </div>
<div class="line"><a name="l04996"></a><span class="lineno"> 4996</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) streams[streamId];</div>
<div class="line"><a name="l04997"></a><span class="lineno"> 4997</span> </div>
<div class="line"><a name="l04998"></a><span class="lineno"> 4998</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l04999"></a><span class="lineno"> 4999</span>  stream->callbackInfo.usingCallback = <span class="keyword">false</span>;</div>
<div class="line"><a name="l05000"></a><span class="lineno"> 5000</span>  WaitForSingleObject( (HANDLE)stream->callbackInfo.thread, INFINITE );</div>
<div class="line"><a name="l05001"></a><span class="lineno"> 5001</span>  CloseHandle( (HANDLE)stream->callbackInfo.thread );</div>
<div class="line"><a name="l05002"></a><span class="lineno"> 5002</span>  }</div>
<div class="line"><a name="l05003"></a><span class="lineno"> 5003</span> </div>
<div class="line"><a name="l05004"></a><span class="lineno"> 5004</span>  DeleteCriticalSection(&stream->mutex);</div>
<div class="line"><a name="l05005"></a><span class="lineno"> 5005</span> </div>
<div class="line"><a name="l05006"></a><span class="lineno"> 5006</span>  <span class="keywordflow">if</span> (stream->handle[0].object) {</div>
<div class="line"><a name="l05007"></a><span class="lineno"> 5007</span>  LPDIRECTSOUND <span class="keywordtype">object</span> = (LPDIRECTSOUND) stream->handle[0].object;</div>
<div class="line"><a name="l05008"></a><span class="lineno"> 5008</span>  LPDIRECTSOUNDBUFFER buffer = (LPDIRECTSOUNDBUFFER) stream->handle[0].buffer;</div>
<div class="line"><a name="l05009"></a><span class="lineno"> 5009</span>  <span class="keywordflow">if</span> (buffer) {</div>
<div class="line"><a name="l05010"></a><span class="lineno"> 5010</span>  buffer->Stop();</div>
<div class="line"><a name="l05011"></a><span class="lineno"> 5011</span>  buffer->Release();</div>
<div class="line"><a name="l05012"></a><span class="lineno"> 5012</span>  }</div>
<div class="line"><a name="l05013"></a><span class="lineno"> 5013</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l05014"></a><span class="lineno"> 5014</span>  }</div>
<div class="line"><a name="l05015"></a><span class="lineno"> 5015</span> </div>
<div class="line"><a name="l05016"></a><span class="lineno"> 5016</span>  <span class="keywordflow">if</span> (stream->handle[1].object) {</div>
<div class="line"><a name="l05017"></a><span class="lineno"> 5017</span>  LPDIRECTSOUNDCAPTURE <span class="keywordtype">object</span> = (LPDIRECTSOUNDCAPTURE) stream->handle[1].object;</div>
<div class="line"><a name="l05018"></a><span class="lineno"> 5018</span>  LPDIRECTSOUNDCAPTUREBUFFER buffer = (LPDIRECTSOUNDCAPTUREBUFFER) stream->handle[1].buffer;</div>
<div class="line"><a name="l05019"></a><span class="lineno"> 5019</span>  <span class="keywordflow">if</span> (buffer) {</div>
<div class="line"><a name="l05020"></a><span class="lineno"> 5020</span>  buffer->Stop();</div>
<div class="line"><a name="l05021"></a><span class="lineno"> 5021</span>  buffer->Release();</div>
<div class="line"><a name="l05022"></a><span class="lineno"> 5022</span>  }</div>
<div class="line"><a name="l05023"></a><span class="lineno"> 5023</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l05024"></a><span class="lineno"> 5024</span>  }</div>
<div class="line"><a name="l05025"></a><span class="lineno"> 5025</span> </div>
<div class="line"><a name="l05026"></a><span class="lineno"> 5026</span>  <span class="keywordflow">if</span> (stream->userBuffer)</div>
<div class="line"><a name="l05027"></a><span class="lineno"> 5027</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l05028"></a><span class="lineno"> 5028</span> </div>
<div class="line"><a name="l05029"></a><span class="lineno"> 5029</span>  <span class="keywordflow">if</span> (stream->deviceBuffer)</div>
<div class="line"><a name="l05030"></a><span class="lineno"> 5030</span>  free(stream->deviceBuffer);</div>
<div class="line"><a name="l05031"></a><span class="lineno"> 5031</span> </div>
<div class="line"><a name="l05032"></a><span class="lineno"> 5032</span>  free(stream);</div>
<div class="line"><a name="l05033"></a><span class="lineno"> 5033</span>  streams.erase(streamId);</div>
<div class="line"><a name="l05034"></a><span class="lineno"> 5034</span> }</div>
<div class="line"><a name="l05035"></a><span class="lineno"> 5035</span> </div>
<div class="line"><a name="l05036"></a><span class="lineno"> 5036</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a304d9fc57cee6539bb1d98b82b10508f" title="Public method which starts a stream.">RtAudio :: startStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l05037"></a><span class="lineno"> 5037</span> {</div>
<div class="line"><a name="l05038"></a><span class="lineno"> 5038</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l05039"></a><span class="lineno"> 5039</span> </div>
<div class="line"><a name="l05040"></a><span class="lineno"> 5040</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05041"></a><span class="lineno"> 5041</span> </div>
<div class="line"><a name="l05042"></a><span class="lineno"> 5042</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l05043"></a><span class="lineno"> 5043</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l05044"></a><span class="lineno"> 5044</span> </div>
<div class="line"><a name="l05045"></a><span class="lineno"> 5045</span>  HRESULT result;</div>
<div class="line"><a name="l05046"></a><span class="lineno"> 5046</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05047"></a><span class="lineno"> 5047</span>  LPDIRECTSOUNDBUFFER buffer = (LPDIRECTSOUNDBUFFER) stream->handle[0].buffer;</div>
<div class="line"><a name="l05048"></a><span class="lineno"> 5048</span>  result = buffer->Play(0, 0, DSBPLAY_LOOPING );</div>
<div class="line"><a name="l05049"></a><span class="lineno"> 5049</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05050"></a><span class="lineno"> 5050</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to start DS buffer (%s): %s."</span>,</div>
<div class="line"><a name="l05051"></a><span class="lineno"> 5051</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05052"></a><span class="lineno"> 5052</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05053"></a><span class="lineno"> 5053</span>  }</div>
<div class="line"><a name="l05054"></a><span class="lineno"> 5054</span>  }</div>
<div class="line"><a name="l05055"></a><span class="lineno"> 5055</span> </div>
<div class="line"><a name="l05056"></a><span class="lineno"> 5056</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05057"></a><span class="lineno"> 5057</span>  LPDIRECTSOUNDCAPTUREBUFFER buffer = (LPDIRECTSOUNDCAPTUREBUFFER) stream->handle[1].buffer;</div>
<div class="line"><a name="l05058"></a><span class="lineno"> 5058</span>  result = buffer->Start(DSCBSTART_LOOPING );</div>
<div class="line"><a name="l05059"></a><span class="lineno"> 5059</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05060"></a><span class="lineno"> 5060</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to start DS capture buffer (%s): %s."</span>,</div>
<div class="line"><a name="l05061"></a><span class="lineno"> 5061</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05062"></a><span class="lineno"> 5062</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05063"></a><span class="lineno"> 5063</span>  }</div>
<div class="line"><a name="l05064"></a><span class="lineno"> 5064</span>  }</div>
<div class="line"><a name="l05065"></a><span class="lineno"> 5065</span>  stream->state = STREAM_RUNNING;</div>
<div class="line"><a name="l05066"></a><span class="lineno"> 5066</span> </div>
<div class="line"><a name="l05067"></a><span class="lineno"> 5067</span>  unlock:</div>
<div class="line"><a name="l05068"></a><span class="lineno"> 5068</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05069"></a><span class="lineno"> 5069</span> }</div>
<div class="line"><a name="l05070"></a><span class="lineno"> 5070</span> </div>
<div class="line"><a name="l05071"></a><span class="lineno"> 5071</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">RtAudio :: stopStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l05072"></a><span class="lineno"> 5072</span> {</div>
<div class="line"><a name="l05073"></a><span class="lineno"> 5073</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l05074"></a><span class="lineno"> 5074</span> </div>
<div class="line"><a name="l05075"></a><span class="lineno"> 5075</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05076"></a><span class="lineno"> 5076</span> </div>
<div class="line"><a name="l05077"></a><span class="lineno"> 5077</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED) {</div>
<div class="line"><a name="l05078"></a><span class="lineno"> 5078</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05079"></a><span class="lineno"> 5079</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l05080"></a><span class="lineno"> 5080</span>  }</div>
<div class="line"><a name="l05081"></a><span class="lineno"> 5081</span> </div>
<div class="line"><a name="l05082"></a><span class="lineno"> 5082</span>  <span class="comment">// There is no specific DirectSound API call to "drain" a buffer</span></div>
<div class="line"><a name="l05083"></a><span class="lineno"> 5083</span>  <span class="comment">// before stopping. We can hack this for playback by writing zeroes</span></div>
<div class="line"><a name="l05084"></a><span class="lineno"> 5084</span>  <span class="comment">// for another bufferSize * nBuffers frames. For capture, the</span></div>
<div class="line"><a name="l05085"></a><span class="lineno"> 5085</span>  <span class="comment">// concept is less clear so we'll repeat what we do in the</span></div>
<div class="line"><a name="l05086"></a><span class="lineno"> 5086</span>  <span class="comment">// abortStream() case.</span></div>
<div class="line"><a name="l05087"></a><span class="lineno"> 5087</span>  HRESULT result;</div>
<div class="line"><a name="l05088"></a><span class="lineno"> 5088</span>  DWORD dsBufferSize;</div>
<div class="line"><a name="l05089"></a><span class="lineno"> 5089</span>  LPVOID buffer1 = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l05090"></a><span class="lineno"> 5090</span>  LPVOID buffer2 = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l05091"></a><span class="lineno"> 5091</span>  DWORD bufferSize1 = 0;</div>
<div class="line"><a name="l05092"></a><span class="lineno"> 5092</span>  DWORD bufferSize2 = 0;</div>
<div class="line"><a name="l05093"></a><span class="lineno"> 5093</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05094"></a><span class="lineno"> 5094</span> </div>
<div class="line"><a name="l05095"></a><span class="lineno"> 5095</span>  DWORD currentPos, safePos;</div>
<div class="line"><a name="l05096"></a><span class="lineno"> 5096</span>  <span class="keywordtype">long</span> buffer_bytes = stream->bufferSize * stream->nDeviceChannels[0];</div>
<div class="line"><a name="l05097"></a><span class="lineno"> 5097</span>  buffer_bytes *= formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l05098"></a><span class="lineno"> 5098</span> </div>
<div class="line"><a name="l05099"></a><span class="lineno"> 5099</span>  LPDIRECTSOUNDBUFFER dsBuffer = (LPDIRECTSOUNDBUFFER) stream->handle[0].buffer;</div>
<div class="line"><a name="l05100"></a><span class="lineno"> 5100</span>  UINT nextWritePos = stream->handle[0].bufferPointer;</div>
<div class="line"><a name="l05101"></a><span class="lineno"> 5101</span>  dsBufferSize = buffer_bytes * stream->nBuffers;</div>
<div class="line"><a name="l05102"></a><span class="lineno"> 5102</span> </div>
<div class="line"><a name="l05103"></a><span class="lineno"> 5103</span>  <span class="comment">// Write zeroes for nBuffer counts.</span></div>
<div class="line"><a name="l05104"></a><span class="lineno"> 5104</span>  for (<span class="keywordtype">int</span> i=0; i<stream->nBuffers; i++) {</div>
<div class="line"><a name="l05105"></a><span class="lineno"> 5105</span> </div>
<div class="line"><a name="l05106"></a><span class="lineno"> 5106</span>  <span class="comment">// Find out where the read and "safe write" pointers are.</span></div>
<div class="line"><a name="l05107"></a><span class="lineno"> 5107</span>  result = dsBuffer->GetCurrentPosition(&currentPos, &safePos);</div>
<div class="line"><a name="l05108"></a><span class="lineno"> 5108</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05109"></a><span class="lineno"> 5109</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to get current DS position (%s): %s."</span>,</div>
<div class="line"><a name="l05110"></a><span class="lineno"> 5110</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05111"></a><span class="lineno"> 5111</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05112"></a><span class="lineno"> 5112</span>  }</div>
<div class="line"><a name="l05113"></a><span class="lineno"> 5113</span> </div>
<div class="line"><a name="l05114"></a><span class="lineno"> 5114</span>  <span class="keywordflow">if</span> ( currentPos < nextWritePos ) currentPos += dsBufferSize; <span class="comment">// unwrap offset</span></div>
<div class="line"><a name="l05115"></a><span class="lineno"> 5115</span>  DWORD endWrite = nextWritePos + buffer_bytes;</div>
<div class="line"><a name="l05116"></a><span class="lineno"> 5116</span> </div>
<div class="line"><a name="l05117"></a><span class="lineno"> 5117</span>  <span class="comment">// Check whether the entire write region is behind the play pointer.</span></div>
<div class="line"><a name="l05118"></a><span class="lineno"> 5118</span>  <span class="keywordflow">while</span> ( currentPos < endWrite ) {</div>
<div class="line"><a name="l05119"></a><span class="lineno"> 5119</span>  <span class="keywordtype">float</span> millis = (endWrite - currentPos) * 900.0;</div>
<div class="line"><a name="l05120"></a><span class="lineno"> 5120</span>  millis /= ( formatBytes(stream->deviceFormat[0]) * stream->sampleRate);</div>
<div class="line"><a name="l05121"></a><span class="lineno"> 5121</span>  <span class="keywordflow">if</span> ( millis < 1.0 ) millis = 1.0;</div>
<div class="line"><a name="l05122"></a><span class="lineno"> 5122</span>  Sleep( (DWORD) millis );</div>
<div class="line"><a name="l05123"></a><span class="lineno"> 5123</span> </div>
<div class="line"><a name="l05124"></a><span class="lineno"> 5124</span>  <span class="comment">// Wake up, find out where we are now</span></div>
<div class="line"><a name="l05125"></a><span class="lineno"> 5125</span>  result = dsBuffer->GetCurrentPosition( &currentPos, &safePos );</div>
<div class="line"><a name="l05126"></a><span class="lineno"> 5126</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05127"></a><span class="lineno"> 5127</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to get current DS position (%s): %s."</span>,</div>
<div class="line"><a name="l05128"></a><span class="lineno"> 5128</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05129"></a><span class="lineno"> 5129</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05130"></a><span class="lineno"> 5130</span>  }</div>
<div class="line"><a name="l05131"></a><span class="lineno"> 5131</span>  <span class="keywordflow">if</span> ( currentPos < nextWritePos ) currentPos += dsBufferSize; <span class="comment">// unwrap offset</span></div>
<div class="line"><a name="l05132"></a><span class="lineno"> 5132</span>  }</div>
<div class="line"><a name="l05133"></a><span class="lineno"> 5133</span> </div>
<div class="line"><a name="l05134"></a><span class="lineno"> 5134</span>  <span class="comment">// Lock free space in the buffer</span></div>
<div class="line"><a name="l05135"></a><span class="lineno"> 5135</span>  result = dsBuffer->Lock (nextWritePos, buffer_bytes, &buffer1,</div>
<div class="line"><a name="l05136"></a><span class="lineno"> 5136</span>  &bufferSize1, &buffer2, &bufferSize2, 0);</div>
<div class="line"><a name="l05137"></a><span class="lineno"> 5137</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05138"></a><span class="lineno"> 5138</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to lock DS buffer during playback (%s): %s."</span>,</div>
<div class="line"><a name="l05139"></a><span class="lineno"> 5139</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05140"></a><span class="lineno"> 5140</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05141"></a><span class="lineno"> 5141</span>  }</div>
<div class="line"><a name="l05142"></a><span class="lineno"> 5142</span> </div>
<div class="line"><a name="l05143"></a><span class="lineno"> 5143</span>  <span class="comment">// Zero the free space</span></div>
<div class="line"><a name="l05144"></a><span class="lineno"> 5144</span>  ZeroMemory(buffer1, bufferSize1);</div>
<div class="line"><a name="l05145"></a><span class="lineno"> 5145</span>  <span class="keywordflow">if</span> (buffer2 != <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) ZeroMemory(buffer2, bufferSize2);</div>
<div class="line"><a name="l05146"></a><span class="lineno"> 5146</span> </div>
<div class="line"><a name="l05147"></a><span class="lineno"> 5147</span>  <span class="comment">// Update our buffer offset and unlock sound buffer</span></div>
<div class="line"><a name="l05148"></a><span class="lineno"> 5148</span>  dsBuffer->Unlock (buffer1, bufferSize1, buffer2, bufferSize2);</div>
<div class="line"><a name="l05149"></a><span class="lineno"> 5149</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05150"></a><span class="lineno"> 5150</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to unlock DS buffer during playback (%s): %s."</span>,</div>
<div class="line"><a name="l05151"></a><span class="lineno"> 5151</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05152"></a><span class="lineno"> 5152</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05153"></a><span class="lineno"> 5153</span>  }</div>
<div class="line"><a name="l05154"></a><span class="lineno"> 5154</span>  nextWritePos = (nextWritePos + bufferSize1 + bufferSize2) % dsBufferSize;</div>
<div class="line"><a name="l05155"></a><span class="lineno"> 5155</span>  stream->handle[0].bufferPointer = nextWritePos;</div>
<div class="line"><a name="l05156"></a><span class="lineno"> 5156</span>  }</div>
<div class="line"><a name="l05157"></a><span class="lineno"> 5157</span> </div>
<div class="line"><a name="l05158"></a><span class="lineno"> 5158</span>  <span class="comment">// If we play again, start at the beginning of the buffer.</span></div>
<div class="line"><a name="l05159"></a><span class="lineno"> 5159</span>  stream->handle[0].bufferPointer = 0;</div>
<div class="line"><a name="l05160"></a><span class="lineno"> 5160</span>  }</div>
<div class="line"><a name="l05161"></a><span class="lineno"> 5161</span> </div>
<div class="line"><a name="l05162"></a><span class="lineno"> 5162</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05163"></a><span class="lineno"> 5163</span>  LPDIRECTSOUNDCAPTUREBUFFER buffer = (LPDIRECTSOUNDCAPTUREBUFFER) stream->handle[1].buffer;</div>
<div class="line"><a name="l05164"></a><span class="lineno"> 5164</span>  buffer1 = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l05165"></a><span class="lineno"> 5165</span>  bufferSize1 = 0;</div>
<div class="line"><a name="l05166"></a><span class="lineno"> 5166</span> </div>
<div class="line"><a name="l05167"></a><span class="lineno"> 5167</span>  result = buffer->Stop();</div>
<div class="line"><a name="l05168"></a><span class="lineno"> 5168</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05169"></a><span class="lineno"> 5169</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to stop DS capture buffer (%s): %s"</span>,</div>
<div class="line"><a name="l05170"></a><span class="lineno"> 5170</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05171"></a><span class="lineno"> 5171</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05172"></a><span class="lineno"> 5172</span>  }</div>
<div class="line"><a name="l05173"></a><span class="lineno"> 5173</span> </div>
<div class="line"><a name="l05174"></a><span class="lineno"> 5174</span>  dsBufferSize = stream->bufferSize * stream->nDeviceChannels[1];</div>
<div class="line"><a name="l05175"></a><span class="lineno"> 5175</span>  dsBufferSize *= formatBytes(stream->deviceFormat[1]) * stream->nBuffers;</div>
<div class="line"><a name="l05176"></a><span class="lineno"> 5176</span> </div>
<div class="line"><a name="l05177"></a><span class="lineno"> 5177</span>  <span class="comment">// Lock the buffer and clear it so that if we start to play again,</span></div>
<div class="line"><a name="l05178"></a><span class="lineno"> 5178</span>  <span class="comment">// we won't have old data playing.</span></div>
<div class="line"><a name="l05179"></a><span class="lineno"> 5179</span>  result = buffer->Lock(0, dsBufferSize, &buffer1, &bufferSize1, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l05180"></a><span class="lineno"> 5180</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05181"></a><span class="lineno"> 5181</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to lock DS capture buffer (%s): %s."</span>,</div>
<div class="line"><a name="l05182"></a><span class="lineno"> 5182</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05183"></a><span class="lineno"> 5183</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05184"></a><span class="lineno"> 5184</span>  }</div>
<div class="line"><a name="l05185"></a><span class="lineno"> 5185</span> </div>
<div class="line"><a name="l05186"></a><span class="lineno"> 5186</span>  <span class="comment">// Zero the DS buffer</span></div>
<div class="line"><a name="l05187"></a><span class="lineno"> 5187</span>  ZeroMemory(buffer1, bufferSize1);</div>
<div class="line"><a name="l05188"></a><span class="lineno"> 5188</span> </div>
<div class="line"><a name="l05189"></a><span class="lineno"> 5189</span>  <span class="comment">// Unlock the DS buffer</span></div>
<div class="line"><a name="l05190"></a><span class="lineno"> 5190</span>  result = buffer->Unlock(buffer1, bufferSize1, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l05191"></a><span class="lineno"> 5191</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05192"></a><span class="lineno"> 5192</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to unlock DS capture buffer (%s): %s."</span>,</div>
<div class="line"><a name="l05193"></a><span class="lineno"> 5193</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05194"></a><span class="lineno"> 5194</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05195"></a><span class="lineno"> 5195</span>  }</div>
<div class="line"><a name="l05196"></a><span class="lineno"> 5196</span> </div>
<div class="line"><a name="l05197"></a><span class="lineno"> 5197</span>  <span class="comment">// If we start recording again, we must begin at beginning of buffer.</span></div>
<div class="line"><a name="l05198"></a><span class="lineno"> 5198</span>  stream->handle[1].bufferPointer = 0;</div>
<div class="line"><a name="l05199"></a><span class="lineno"> 5199</span>  }</div>
<div class="line"><a name="l05200"></a><span class="lineno"> 5200</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l05201"></a><span class="lineno"> 5201</span> </div>
<div class="line"><a name="l05202"></a><span class="lineno"> 5202</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05203"></a><span class="lineno"> 5203</span> }</div>
<div class="line"><a name="l05204"></a><span class="lineno"> 5204</span> </div>
<div class="line"><a name="l05205"></a><span class="lineno"> 5205</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a72335b2cf99913c017886ce5a818e6a3" title="Stop a stream, discarding any samples remaining in the input/output queue.">RtAudio :: abortStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l05206"></a><span class="lineno"> 5206</span> {</div>
<div class="line"><a name="l05207"></a><span class="lineno"> 5207</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l05208"></a><span class="lineno"> 5208</span> </div>
<div class="line"><a name="l05209"></a><span class="lineno"> 5209</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05210"></a><span class="lineno"> 5210</span> </div>
<div class="line"><a name="l05211"></a><span class="lineno"> 5211</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l05212"></a><span class="lineno"> 5212</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l05213"></a><span class="lineno"> 5213</span> </div>
<div class="line"><a name="l05214"></a><span class="lineno"> 5214</span>  HRESULT result;</div>
<div class="line"><a name="l05215"></a><span class="lineno"> 5215</span>  <span class="keywordtype">long</span> dsBufferSize;</div>
<div class="line"><a name="l05216"></a><span class="lineno"> 5216</span>  LPVOID audioPtr;</div>
<div class="line"><a name="l05217"></a><span class="lineno"> 5217</span>  DWORD dataLen;</div>
<div class="line"><a name="l05218"></a><span class="lineno"> 5218</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05219"></a><span class="lineno"> 5219</span>  LPDIRECTSOUNDBUFFER buffer = (LPDIRECTSOUNDBUFFER) stream->handle[0].buffer;</div>
<div class="line"><a name="l05220"></a><span class="lineno"> 5220</span>  result = buffer->Stop();</div>
<div class="line"><a name="l05221"></a><span class="lineno"> 5221</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05222"></a><span class="lineno"> 5222</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to stop DS buffer (%s): %s"</span>,</div>
<div class="line"><a name="l05223"></a><span class="lineno"> 5223</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05224"></a><span class="lineno"> 5224</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05225"></a><span class="lineno"> 5225</span>  }</div>
<div class="line"><a name="l05226"></a><span class="lineno"> 5226</span> </div>
<div class="line"><a name="l05227"></a><span class="lineno"> 5227</span>  dsBufferSize = stream->bufferSize * stream->nDeviceChannels[0];</div>
<div class="line"><a name="l05228"></a><span class="lineno"> 5228</span>  dsBufferSize *= formatBytes(stream->deviceFormat[0]) * stream->nBuffers;</div>
<div class="line"><a name="l05229"></a><span class="lineno"> 5229</span> </div>
<div class="line"><a name="l05230"></a><span class="lineno"> 5230</span>  <span class="comment">// Lock the buffer and clear it so that if we start to play again,</span></div>
<div class="line"><a name="l05231"></a><span class="lineno"> 5231</span>  <span class="comment">// we won't have old data playing.</span></div>
<div class="line"><a name="l05232"></a><span class="lineno"> 5232</span>  result = buffer->Lock(0, dsBufferSize, &audioPtr, &dataLen, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l05233"></a><span class="lineno"> 5233</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05234"></a><span class="lineno"> 5234</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to lock DS buffer (%s): %s."</span>,</div>
<div class="line"><a name="l05235"></a><span class="lineno"> 5235</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05236"></a><span class="lineno"> 5236</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05237"></a><span class="lineno"> 5237</span>  }</div>
<div class="line"><a name="l05238"></a><span class="lineno"> 5238</span> </div>
<div class="line"><a name="l05239"></a><span class="lineno"> 5239</span>  <span class="comment">// Zero the DS buffer</span></div>
<div class="line"><a name="l05240"></a><span class="lineno"> 5240</span>  ZeroMemory(audioPtr, dataLen);</div>
<div class="line"><a name="l05241"></a><span class="lineno"> 5241</span> </div>
<div class="line"><a name="l05242"></a><span class="lineno"> 5242</span>  <span class="comment">// Unlock the DS buffer</span></div>
<div class="line"><a name="l05243"></a><span class="lineno"> 5243</span>  result = buffer->Unlock(audioPtr, dataLen, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l05244"></a><span class="lineno"> 5244</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05245"></a><span class="lineno"> 5245</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to unlock DS buffer (%s): %s."</span>,</div>
<div class="line"><a name="l05246"></a><span class="lineno"> 5246</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05247"></a><span class="lineno"> 5247</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05248"></a><span class="lineno"> 5248</span>  }</div>
<div class="line"><a name="l05249"></a><span class="lineno"> 5249</span> </div>
<div class="line"><a name="l05250"></a><span class="lineno"> 5250</span>  <span class="comment">// If we start playing again, we must begin at beginning of buffer.</span></div>
<div class="line"><a name="l05251"></a><span class="lineno"> 5251</span>  stream->handle[0].bufferPointer = 0;</div>
<div class="line"><a name="l05252"></a><span class="lineno"> 5252</span>  }</div>
<div class="line"><a name="l05253"></a><span class="lineno"> 5253</span> </div>
<div class="line"><a name="l05254"></a><span class="lineno"> 5254</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05255"></a><span class="lineno"> 5255</span>  LPDIRECTSOUNDCAPTUREBUFFER buffer = (LPDIRECTSOUNDCAPTUREBUFFER) stream->handle[1].buffer;</div>
<div class="line"><a name="l05256"></a><span class="lineno"> 5256</span>  audioPtr = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l05257"></a><span class="lineno"> 5257</span>  dataLen = 0;</div>
<div class="line"><a name="l05258"></a><span class="lineno"> 5258</span> </div>
<div class="line"><a name="l05259"></a><span class="lineno"> 5259</span>  result = buffer->Stop();</div>
<div class="line"><a name="l05260"></a><span class="lineno"> 5260</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05261"></a><span class="lineno"> 5261</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to stop DS capture buffer (%s): %s"</span>,</div>
<div class="line"><a name="l05262"></a><span class="lineno"> 5262</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05263"></a><span class="lineno"> 5263</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05264"></a><span class="lineno"> 5264</span>  }</div>
<div class="line"><a name="l05265"></a><span class="lineno"> 5265</span> </div>
<div class="line"><a name="l05266"></a><span class="lineno"> 5266</span>  dsBufferSize = stream->bufferSize * stream->nDeviceChannels[1];</div>
<div class="line"><a name="l05267"></a><span class="lineno"> 5267</span>  dsBufferSize *= formatBytes(stream->deviceFormat[1]) * stream->nBuffers;</div>
<div class="line"><a name="l05268"></a><span class="lineno"> 5268</span> </div>
<div class="line"><a name="l05269"></a><span class="lineno"> 5269</span>  <span class="comment">// Lock the buffer and clear it so that if we start to play again,</span></div>
<div class="line"><a name="l05270"></a><span class="lineno"> 5270</span>  <span class="comment">// we won't have old data playing.</span></div>
<div class="line"><a name="l05271"></a><span class="lineno"> 5271</span>  result = buffer->Lock(0, dsBufferSize, &audioPtr, &dataLen, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l05272"></a><span class="lineno"> 5272</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05273"></a><span class="lineno"> 5273</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to lock DS capture buffer (%s): %s."</span>,</div>
<div class="line"><a name="l05274"></a><span class="lineno"> 5274</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05275"></a><span class="lineno"> 5275</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05276"></a><span class="lineno"> 5276</span>  }</div>
<div class="line"><a name="l05277"></a><span class="lineno"> 5277</span> </div>
<div class="line"><a name="l05278"></a><span class="lineno"> 5278</span>  <span class="comment">// Zero the DS buffer</span></div>
<div class="line"><a name="l05279"></a><span class="lineno"> 5279</span>  ZeroMemory(audioPtr, dataLen);</div>
<div class="line"><a name="l05280"></a><span class="lineno"> 5280</span> </div>
<div class="line"><a name="l05281"></a><span class="lineno"> 5281</span>  <span class="comment">// Unlock the DS buffer</span></div>
<div class="line"><a name="l05282"></a><span class="lineno"> 5282</span>  result = buffer->Unlock(audioPtr, dataLen, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0);</div>
<div class="line"><a name="l05283"></a><span class="lineno"> 5283</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05284"></a><span class="lineno"> 5284</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to unlock DS capture buffer (%s): %s."</span>,</div>
<div class="line"><a name="l05285"></a><span class="lineno"> 5285</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05286"></a><span class="lineno"> 5286</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05287"></a><span class="lineno"> 5287</span>  }</div>
<div class="line"><a name="l05288"></a><span class="lineno"> 5288</span> </div>
<div class="line"><a name="l05289"></a><span class="lineno"> 5289</span>  <span class="comment">// If we start recording again, we must begin at beginning of buffer.</span></div>
<div class="line"><a name="l05290"></a><span class="lineno"> 5290</span>  stream->handle[1].bufferPointer = 0;</div>
<div class="line"><a name="l05291"></a><span class="lineno"> 5291</span>  }</div>
<div class="line"><a name="l05292"></a><span class="lineno"> 5292</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l05293"></a><span class="lineno"> 5293</span> </div>
<div class="line"><a name="l05294"></a><span class="lineno"> 5294</span>  unlock:</div>
<div class="line"><a name="l05295"></a><span class="lineno"> 5295</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05296"></a><span class="lineno"> 5296</span> }</div>
<div class="line"><a name="l05297"></a><span class="lineno"> 5297</span> </div>
<div class="line"><a name="l05298"></a><span class="lineno"> 5298</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#ab7e0a7652c1c90c0463ccbff3b794f2f" title="Queries a stream to determine whether a call to the tickStream() method will block.">RtAudio :: streamWillBlock</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l05299"></a><span class="lineno"> 5299</span> {</div>
<div class="line"><a name="l05300"></a><span class="lineno"> 5300</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l05301"></a><span class="lineno"> 5301</span> </div>
<div class="line"><a name="l05302"></a><span class="lineno"> 5302</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05303"></a><span class="lineno"> 5303</span> </div>
<div class="line"><a name="l05304"></a><span class="lineno"> 5304</span>  <span class="keywordtype">int</span> channels;</div>
<div class="line"><a name="l05305"></a><span class="lineno"> 5305</span>  <span class="keywordtype">int</span> frames = 0;</div>
<div class="line"><a name="l05306"></a><span class="lineno"> 5306</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l05307"></a><span class="lineno"> 5307</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l05308"></a><span class="lineno"> 5308</span> </div>
<div class="line"><a name="l05309"></a><span class="lineno"> 5309</span>  HRESULT result;</div>
<div class="line"><a name="l05310"></a><span class="lineno"> 5310</span>  DWORD currentPos, safePos;</div>
<div class="line"><a name="l05311"></a><span class="lineno"> 5311</span>  channels = 1;</div>
<div class="line"><a name="l05312"></a><span class="lineno"> 5312</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05313"></a><span class="lineno"> 5313</span> </div>
<div class="line"><a name="l05314"></a><span class="lineno"> 5314</span>  LPDIRECTSOUNDBUFFER dsBuffer = (LPDIRECTSOUNDBUFFER) stream->handle[0].buffer;</div>
<div class="line"><a name="l05315"></a><span class="lineno"> 5315</span>  UINT nextWritePos = stream->handle[0].bufferPointer;</div>
<div class="line"><a name="l05316"></a><span class="lineno"> 5316</span>  channels = stream->nDeviceChannels[0];</div>
<div class="line"><a name="l05317"></a><span class="lineno"> 5317</span>  DWORD dsBufferSize = stream->bufferSize * channels;</div>
<div class="line"><a name="l05318"></a><span class="lineno"> 5318</span>  dsBufferSize *= formatBytes(stream->deviceFormat[0]) * stream->nBuffers;</div>
<div class="line"><a name="l05319"></a><span class="lineno"> 5319</span> </div>
<div class="line"><a name="l05320"></a><span class="lineno"> 5320</span>  <span class="comment">// Find out where the read and "safe write" pointers are.</span></div>
<div class="line"><a name="l05321"></a><span class="lineno"> 5321</span>  result = dsBuffer->GetCurrentPosition(&currentPos, &safePos);</div>
<div class="line"><a name="l05322"></a><span class="lineno"> 5322</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05323"></a><span class="lineno"> 5323</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to get current DS position (%s): %s."</span>,</div>
<div class="line"><a name="l05324"></a><span class="lineno"> 5324</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05325"></a><span class="lineno"> 5325</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05326"></a><span class="lineno"> 5326</span>  }</div>
<div class="line"><a name="l05327"></a><span class="lineno"> 5327</span> </div>
<div class="line"><a name="l05328"></a><span class="lineno"> 5328</span>  <span class="keywordflow">if</span> ( currentPos < nextWritePos ) currentPos += dsBufferSize; <span class="comment">// unwrap offset</span></div>
<div class="line"><a name="l05329"></a><span class="lineno"> 5329</span>  frames = currentPos - nextWritePos;</div>
<div class="line"><a name="l05330"></a><span class="lineno"> 5330</span>  frames /= channels * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l05331"></a><span class="lineno"> 5331</span>  }</div>
<div class="line"><a name="l05332"></a><span class="lineno"> 5332</span> </div>
<div class="line"><a name="l05333"></a><span class="lineno"> 5333</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05334"></a><span class="lineno"> 5334</span> </div>
<div class="line"><a name="l05335"></a><span class="lineno"> 5335</span>  LPDIRECTSOUNDCAPTUREBUFFER dsBuffer = (LPDIRECTSOUNDCAPTUREBUFFER) stream->handle[1].buffer;</div>
<div class="line"><a name="l05336"></a><span class="lineno"> 5336</span>  UINT nextReadPos = stream->handle[1].bufferPointer;</div>
<div class="line"><a name="l05337"></a><span class="lineno"> 5337</span>  channels = stream->nDeviceChannels[1];</div>
<div class="line"><a name="l05338"></a><span class="lineno"> 5338</span>  DWORD dsBufferSize = stream->bufferSize * channels;</div>
<div class="line"><a name="l05339"></a><span class="lineno"> 5339</span>  dsBufferSize *= formatBytes(stream->deviceFormat[1]) * stream->nBuffers;</div>
<div class="line"><a name="l05340"></a><span class="lineno"> 5340</span> </div>
<div class="line"><a name="l05341"></a><span class="lineno"> 5341</span>  <span class="comment">// Find out where the write and "safe read" pointers are.</span></div>
<div class="line"><a name="l05342"></a><span class="lineno"> 5342</span>  result = dsBuffer->GetCurrentPosition(&currentPos, &safePos);</div>
<div class="line"><a name="l05343"></a><span class="lineno"> 5343</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05344"></a><span class="lineno"> 5344</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to get current DS capture position (%s): %s."</span>,</div>
<div class="line"><a name="l05345"></a><span class="lineno"> 5345</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05346"></a><span class="lineno"> 5346</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05347"></a><span class="lineno"> 5347</span>  }</div>
<div class="line"><a name="l05348"></a><span class="lineno"> 5348</span> </div>
<div class="line"><a name="l05349"></a><span class="lineno"> 5349</span>  <span class="keywordflow">if</span> ( safePos < nextReadPos ) safePos += dsBufferSize; <span class="comment">// unwrap offset</span></div>
<div class="line"><a name="l05350"></a><span class="lineno"> 5350</span> </div>
<div class="line"><a name="l05351"></a><span class="lineno"> 5351</span>  <span class="keywordflow">if</span> (stream->mode == DUPLEX ) {</div>
<div class="line"><a name="l05352"></a><span class="lineno"> 5352</span>  <span class="comment">// Take largest value of the two.</span></div>
<div class="line"><a name="l05353"></a><span class="lineno"> 5353</span>  <span class="keywordtype">int</span> temp = safePos - nextReadPos;</div>
<div class="line"><a name="l05354"></a><span class="lineno"> 5354</span>  temp /= channels * formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l05355"></a><span class="lineno"> 5355</span>  frames = ( temp > frames ) ? temp : frames;</div>
<div class="line"><a name="l05356"></a><span class="lineno"> 5356</span>  }</div>
<div class="line"><a name="l05357"></a><span class="lineno"> 5357</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05358"></a><span class="lineno"> 5358</span>  frames = safePos - nextReadPos;</div>
<div class="line"><a name="l05359"></a><span class="lineno"> 5359</span>  frames /= channels * formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l05360"></a><span class="lineno"> 5360</span>  }</div>
<div class="line"><a name="l05361"></a><span class="lineno"> 5361</span>  }</div>
<div class="line"><a name="l05362"></a><span class="lineno"> 5362</span> </div>
<div class="line"><a name="l05363"></a><span class="lineno"> 5363</span>  frames = stream->bufferSize - frames;</div>
<div class="line"><a name="l05364"></a><span class="lineno"> 5364</span>  <span class="keywordflow">if</span> (frames < 0) frames = 0;</div>
<div class="line"><a name="l05365"></a><span class="lineno"> 5365</span> </div>
<div class="line"><a name="l05366"></a><span class="lineno"> 5366</span>  unlock:</div>
<div class="line"><a name="l05367"></a><span class="lineno"> 5367</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05368"></a><span class="lineno"> 5368</span>  <span class="keywordflow">return</span> frames;</div>
<div class="line"><a name="l05369"></a><span class="lineno"> 5369</span> }</div>
<div class="line"><a name="l05370"></a><span class="lineno"> 5370</span> </div>
<div class="line"><a name="l05371"></a><span class="lineno"> 5371</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a2ba2bb7bf1995b0d754ec96b10bda324" title="Public method used to trigger processing of input/output data for a stream.">RtAudio :: tickStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l05372"></a><span class="lineno"> 5372</span> {</div>
<div class="line"><a name="l05373"></a><span class="lineno"> 5373</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l05374"></a><span class="lineno"> 5374</span> </div>
<div class="line"><a name="l05375"></a><span class="lineno"> 5375</span>  <span class="keywordtype">int</span> stopStream = 0;</div>
<div class="line"><a name="l05376"></a><span class="lineno"> 5376</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED) {</div>
<div class="line"><a name="l05377"></a><span class="lineno"> 5377</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) Sleep(50); <span class="comment">// sleep 50 milliseconds</span></div>
<div class="line"><a name="l05378"></a><span class="lineno"> 5378</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l05379"></a><span class="lineno"> 5379</span>  }</div>
<div class="line"><a name="l05380"></a><span class="lineno"> 5380</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l05381"></a><span class="lineno"> 5381</span>  <a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a> callback = (<a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a>) stream->callbackInfo.callback;</div>
<div class="line"><a name="l05382"></a><span class="lineno"> 5382</span>  stopStream = callback(stream->userBuffer, stream->bufferSize, stream->callbackInfo.userData);</div>
<div class="line"><a name="l05383"></a><span class="lineno"> 5383</span>  }</div>
<div class="line"><a name="l05384"></a><span class="lineno"> 5384</span> </div>
<div class="line"><a name="l05385"></a><span class="lineno"> 5385</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05386"></a><span class="lineno"> 5386</span> </div>
<div class="line"><a name="l05387"></a><span class="lineno"> 5387</span>  <span class="comment">// The state might change while waiting on a mutex.</span></div>
<div class="line"><a name="l05388"></a><span class="lineno"> 5388</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED) {</div>
<div class="line"><a name="l05389"></a><span class="lineno"> 5389</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05390"></a><span class="lineno"> 5390</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l05391"></a><span class="lineno"> 5391</span>  }</div>
<div class="line"><a name="l05392"></a><span class="lineno"> 5392</span> </div>
<div class="line"><a name="l05393"></a><span class="lineno"> 5393</span>  HRESULT result;</div>
<div class="line"><a name="l05394"></a><span class="lineno"> 5394</span>  DWORD currentPos, safePos;</div>
<div class="line"><a name="l05395"></a><span class="lineno"> 5395</span>  LPVOID buffer1 = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l05396"></a><span class="lineno"> 5396</span>  LPVOID buffer2 = <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l05397"></a><span class="lineno"> 5397</span>  DWORD bufferSize1 = 0;</div>
<div class="line"><a name="l05398"></a><span class="lineno"> 5398</span>  DWORD bufferSize2 = 0;</div>
<div class="line"><a name="l05399"></a><span class="lineno"> 5399</span>  <span class="keywordtype">char</span> *buffer;</div>
<div class="line"><a name="l05400"></a><span class="lineno"> 5400</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l05401"></a><span class="lineno"> 5401</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05402"></a><span class="lineno"> 5402</span> </div>
<div class="line"><a name="l05403"></a><span class="lineno"> 5403</span>  <span class="comment">// Setup parameters and do buffer conversion if necessary.</span></div>
<div class="line"><a name="l05404"></a><span class="lineno"> 5404</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[0]) {</div>
<div class="line"><a name="l05405"></a><span class="lineno"> 5405</span>  convertStreamBuffer(stream, OUTPUT);</div>
<div class="line"><a name="l05406"></a><span class="lineno"> 5406</span>  buffer = stream->deviceBuffer;</div>
<div class="line"><a name="l05407"></a><span class="lineno"> 5407</span>  buffer_bytes = stream->bufferSize * stream->nDeviceChannels[0];</div>
<div class="line"><a name="l05408"></a><span class="lineno"> 5408</span>  buffer_bytes *= formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l05409"></a><span class="lineno"> 5409</span>  }</div>
<div class="line"><a name="l05410"></a><span class="lineno"> 5410</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05411"></a><span class="lineno"> 5411</span>  buffer = stream->userBuffer;</div>
<div class="line"><a name="l05412"></a><span class="lineno"> 5412</span>  buffer_bytes = stream->bufferSize * stream->nUserChannels[0];</div>
<div class="line"><a name="l05413"></a><span class="lineno"> 5413</span>  buffer_bytes *= formatBytes(stream->userFormat);</div>
<div class="line"><a name="l05414"></a><span class="lineno"> 5414</span>  }</div>
<div class="line"><a name="l05415"></a><span class="lineno"> 5415</span> </div>
<div class="line"><a name="l05416"></a><span class="lineno"> 5416</span>  <span class="comment">// No byte swapping necessary in DirectSound implementation.</span></div>
<div class="line"><a name="l05417"></a><span class="lineno"> 5417</span> </div>
<div class="line"><a name="l05418"></a><span class="lineno"> 5418</span>  LPDIRECTSOUNDBUFFER dsBuffer = (LPDIRECTSOUNDBUFFER) stream->handle[0].buffer;</div>
<div class="line"><a name="l05419"></a><span class="lineno"> 5419</span>  UINT nextWritePos = stream->handle[0].bufferPointer;</div>
<div class="line"><a name="l05420"></a><span class="lineno"> 5420</span>  DWORD dsBufferSize = buffer_bytes * stream->nBuffers;</div>
<div class="line"><a name="l05421"></a><span class="lineno"> 5421</span> </div>
<div class="line"><a name="l05422"></a><span class="lineno"> 5422</span>  <span class="comment">// Find out where the read and "safe write" pointers are.</span></div>
<div class="line"><a name="l05423"></a><span class="lineno"> 5423</span>  result = dsBuffer->GetCurrentPosition(&currentPos, &safePos);</div>
<div class="line"><a name="l05424"></a><span class="lineno"> 5424</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05425"></a><span class="lineno"> 5425</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to get current DS position (%s): %s."</span>,</div>
<div class="line"><a name="l05426"></a><span class="lineno"> 5426</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05427"></a><span class="lineno"> 5427</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05428"></a><span class="lineno"> 5428</span>  }</div>
<div class="line"><a name="l05429"></a><span class="lineno"> 5429</span> </div>
<div class="line"><a name="l05430"></a><span class="lineno"> 5430</span>  <span class="keywordflow">if</span> ( currentPos < nextWritePos ) currentPos += dsBufferSize; <span class="comment">// unwrap offset</span></div>
<div class="line"><a name="l05431"></a><span class="lineno"> 5431</span>  DWORD endWrite = nextWritePos + buffer_bytes;</div>
<div class="line"><a name="l05432"></a><span class="lineno"> 5432</span> </div>
<div class="line"><a name="l05433"></a><span class="lineno"> 5433</span>  <span class="comment">// Check whether the entire write region is behind the play pointer.</span></div>
<div class="line"><a name="l05434"></a><span class="lineno"> 5434</span>  <span class="keywordflow">while</span> ( currentPos < endWrite ) {</div>
<div class="line"><a name="l05435"></a><span class="lineno"> 5435</span>  <span class="comment">// If we are here, then we must wait until the play pointer gets</span></div>
<div class="line"><a name="l05436"></a><span class="lineno"> 5436</span>  <span class="comment">// beyond the write region. The approach here is to use the</span></div>
<div class="line"><a name="l05437"></a><span class="lineno"> 5437</span>  <span class="comment">// Sleep() function to suspend operation until safePos catches</span></div>
<div class="line"><a name="l05438"></a><span class="lineno"> 5438</span>  <span class="comment">// up. Calculate number of milliseconds to wait as:</span></div>
<div class="line"><a name="l05439"></a><span class="lineno"> 5439</span>  <span class="comment">// time = distance * (milliseconds/second) * fudgefactor /</span></div>
<div class="line"><a name="l05440"></a><span class="lineno"> 5440</span>  <span class="comment">// ((bytes/sample) * (samples/second))</span></div>
<div class="line"><a name="l05441"></a><span class="lineno"> 5441</span>  <span class="comment">// A "fudgefactor" less than 1 is used because it was found</span></div>
<div class="line"><a name="l05442"></a><span class="lineno"> 5442</span>  <span class="comment">// that sleeping too long was MUCH worse than sleeping for</span></div>
<div class="line"><a name="l05443"></a><span class="lineno"> 5443</span>  <span class="comment">// several shorter periods.</span></div>
<div class="line"><a name="l05444"></a><span class="lineno"> 5444</span>  <span class="keywordtype">float</span> millis = (endWrite - currentPos) * 900.0;</div>
<div class="line"><a name="l05445"></a><span class="lineno"> 5445</span>  millis /= ( formatBytes(stream->deviceFormat[0]) * stream->sampleRate);</div>
<div class="line"><a name="l05446"></a><span class="lineno"> 5446</span>  <span class="keywordflow">if</span> ( millis < 1.0 ) millis = 1.0;</div>
<div class="line"><a name="l05447"></a><span class="lineno"> 5447</span>  Sleep( (DWORD) millis );</div>
<div class="line"><a name="l05448"></a><span class="lineno"> 5448</span> </div>
<div class="line"><a name="l05449"></a><span class="lineno"> 5449</span>  <span class="comment">// Wake up, find out where we are now</span></div>
<div class="line"><a name="l05450"></a><span class="lineno"> 5450</span>  result = dsBuffer->GetCurrentPosition( &currentPos, &safePos );</div>
<div class="line"><a name="l05451"></a><span class="lineno"> 5451</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05452"></a><span class="lineno"> 5452</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to get current DS position (%s): %s."</span>,</div>
<div class="line"><a name="l05453"></a><span class="lineno"> 5453</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05454"></a><span class="lineno"> 5454</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05455"></a><span class="lineno"> 5455</span>  }</div>
<div class="line"><a name="l05456"></a><span class="lineno"> 5456</span>  <span class="keywordflow">if</span> ( currentPos < nextWritePos ) currentPos += dsBufferSize; <span class="comment">// unwrap offset</span></div>
<div class="line"><a name="l05457"></a><span class="lineno"> 5457</span>  }</div>
<div class="line"><a name="l05458"></a><span class="lineno"> 5458</span> </div>
<div class="line"><a name="l05459"></a><span class="lineno"> 5459</span>  <span class="comment">// Lock free space in the buffer</span></div>
<div class="line"><a name="l05460"></a><span class="lineno"> 5460</span>  result = dsBuffer->Lock (nextWritePos, buffer_bytes, &buffer1,</div>
<div class="line"><a name="l05461"></a><span class="lineno"> 5461</span>  &bufferSize1, &buffer2, &bufferSize2, 0);</div>
<div class="line"><a name="l05462"></a><span class="lineno"> 5462</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05463"></a><span class="lineno"> 5463</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to lock DS buffer during playback (%s): %s."</span>,</div>
<div class="line"><a name="l05464"></a><span class="lineno"> 5464</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05465"></a><span class="lineno"> 5465</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05466"></a><span class="lineno"> 5466</span>  }</div>
<div class="line"><a name="l05467"></a><span class="lineno"> 5467</span> </div>
<div class="line"><a name="l05468"></a><span class="lineno"> 5468</span>  <span class="comment">// Copy our buffer into the DS buffer</span></div>
<div class="line"><a name="l05469"></a><span class="lineno"> 5469</span>  CopyMemory(buffer1, buffer, bufferSize1);</div>
<div class="line"><a name="l05470"></a><span class="lineno"> 5470</span>  <span class="keywordflow">if</span> (buffer2 != <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) CopyMemory(buffer2, buffer+bufferSize1, bufferSize2);</div>
<div class="line"><a name="l05471"></a><span class="lineno"> 5471</span> </div>
<div class="line"><a name="l05472"></a><span class="lineno"> 5472</span>  <span class="comment">// Update our buffer offset and unlock sound buffer</span></div>
<div class="line"><a name="l05473"></a><span class="lineno"> 5473</span>  dsBuffer->Unlock (buffer1, bufferSize1, buffer2, bufferSize2);</div>
<div class="line"><a name="l05474"></a><span class="lineno"> 5474</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05475"></a><span class="lineno"> 5475</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to unlock DS buffer during playback (%s): %s."</span>,</div>
<div class="line"><a name="l05476"></a><span class="lineno"> 5476</span>  devices[stream->device[0]].name, getErrorString(result));</div>
<div class="line"><a name="l05477"></a><span class="lineno"> 5477</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05478"></a><span class="lineno"> 5478</span>  }</div>
<div class="line"><a name="l05479"></a><span class="lineno"> 5479</span>  nextWritePos = (nextWritePos + bufferSize1 + bufferSize2) % dsBufferSize;</div>
<div class="line"><a name="l05480"></a><span class="lineno"> 5480</span>  stream->handle[0].bufferPointer = nextWritePos;</div>
<div class="line"><a name="l05481"></a><span class="lineno"> 5481</span>  }</div>
<div class="line"><a name="l05482"></a><span class="lineno"> 5482</span> </div>
<div class="line"><a name="l05483"></a><span class="lineno"> 5483</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l05484"></a><span class="lineno"> 5484</span> </div>
<div class="line"><a name="l05485"></a><span class="lineno"> 5485</span>  <span class="comment">// Setup parameters.</span></div>
<div class="line"><a name="l05486"></a><span class="lineno"> 5486</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1]) {</div>
<div class="line"><a name="l05487"></a><span class="lineno"> 5487</span>  buffer = stream->deviceBuffer;</div>
<div class="line"><a name="l05488"></a><span class="lineno"> 5488</span>  buffer_bytes = stream->bufferSize * stream->nDeviceChannels[1];</div>
<div class="line"><a name="l05489"></a><span class="lineno"> 5489</span>  buffer_bytes *= formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l05490"></a><span class="lineno"> 5490</span>  }</div>
<div class="line"><a name="l05491"></a><span class="lineno"> 5491</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05492"></a><span class="lineno"> 5492</span>  buffer = stream->userBuffer;</div>
<div class="line"><a name="l05493"></a><span class="lineno"> 5493</span>  buffer_bytes = stream->bufferSize * stream->nUserChannels[1];</div>
<div class="line"><a name="l05494"></a><span class="lineno"> 5494</span>  buffer_bytes *= formatBytes(stream->userFormat);</div>
<div class="line"><a name="l05495"></a><span class="lineno"> 5495</span>  }</div>
<div class="line"><a name="l05496"></a><span class="lineno"> 5496</span> </div>
<div class="line"><a name="l05497"></a><span class="lineno"> 5497</span>  LPDIRECTSOUNDCAPTUREBUFFER dsBuffer = (LPDIRECTSOUNDCAPTUREBUFFER) stream->handle[1].buffer;</div>
<div class="line"><a name="l05498"></a><span class="lineno"> 5498</span>  UINT nextReadPos = stream->handle[1].bufferPointer;</div>
<div class="line"><a name="l05499"></a><span class="lineno"> 5499</span>  DWORD dsBufferSize = buffer_bytes * stream->nBuffers;</div>
<div class="line"><a name="l05500"></a><span class="lineno"> 5500</span> </div>
<div class="line"><a name="l05501"></a><span class="lineno"> 5501</span>  <span class="comment">// Find out where the write and "safe read" pointers are.</span></div>
<div class="line"><a name="l05502"></a><span class="lineno"> 5502</span>  result = dsBuffer->GetCurrentPosition(&currentPos, &safePos);</div>
<div class="line"><a name="l05503"></a><span class="lineno"> 5503</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05504"></a><span class="lineno"> 5504</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to get current DS capture position (%s): %s."</span>,</div>
<div class="line"><a name="l05505"></a><span class="lineno"> 5505</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05506"></a><span class="lineno"> 5506</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05507"></a><span class="lineno"> 5507</span>  }</div>
<div class="line"><a name="l05508"></a><span class="lineno"> 5508</span> </div>
<div class="line"><a name="l05509"></a><span class="lineno"> 5509</span>  <span class="keywordflow">if</span> ( safePos < nextReadPos ) safePos += dsBufferSize; <span class="comment">// unwrap offset</span></div>
<div class="line"><a name="l05510"></a><span class="lineno"> 5510</span>  DWORD endRead = nextReadPos + buffer_bytes;</div>
<div class="line"><a name="l05511"></a><span class="lineno"> 5511</span> </div>
<div class="line"><a name="l05512"></a><span class="lineno"> 5512</span>  <span class="comment">// Check whether the entire write region is behind the play pointer.</span></div>
<div class="line"><a name="l05513"></a><span class="lineno"> 5513</span>  <span class="keywordflow">while</span> ( safePos < endRead ) {</div>
<div class="line"><a name="l05514"></a><span class="lineno"> 5514</span>  <span class="comment">// See comments for playback.</span></div>
<div class="line"><a name="l05515"></a><span class="lineno"> 5515</span>  <span class="keywordtype">float</span> millis = (endRead - safePos) * 900.0;</div>
<div class="line"><a name="l05516"></a><span class="lineno"> 5516</span>  millis /= ( formatBytes(stream->deviceFormat[1]) * stream->sampleRate);</div>
<div class="line"><a name="l05517"></a><span class="lineno"> 5517</span>  <span class="keywordflow">if</span> ( millis < 1.0 ) millis = 1.0;</div>
<div class="line"><a name="l05518"></a><span class="lineno"> 5518</span>  Sleep( (DWORD) millis );</div>
<div class="line"><a name="l05519"></a><span class="lineno"> 5519</span> </div>
<div class="line"><a name="l05520"></a><span class="lineno"> 5520</span>  <span class="comment">// Wake up, find out where we are now</span></div>
<div class="line"><a name="l05521"></a><span class="lineno"> 5521</span>  result = dsBuffer->GetCurrentPosition( &currentPos, &safePos );</div>
<div class="line"><a name="l05522"></a><span class="lineno"> 5522</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05523"></a><span class="lineno"> 5523</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to get current DS capture position (%s): %s."</span>,</div>
<div class="line"><a name="l05524"></a><span class="lineno"> 5524</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05525"></a><span class="lineno"> 5525</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05526"></a><span class="lineno"> 5526</span>  }</div>
<div class="line"><a name="l05527"></a><span class="lineno"> 5527</span>  </div>
<div class="line"><a name="l05528"></a><span class="lineno"> 5528</span>  <span class="keywordflow">if</span> ( safePos < nextReadPos ) safePos += dsBufferSize; <span class="comment">// unwrap offset</span></div>
<div class="line"><a name="l05529"></a><span class="lineno"> 5529</span>  }</div>
<div class="line"><a name="l05530"></a><span class="lineno"> 5530</span> </div>
<div class="line"><a name="l05531"></a><span class="lineno"> 5531</span>  <span class="comment">// Lock free space in the buffer</span></div>
<div class="line"><a name="l05532"></a><span class="lineno"> 5532</span>  result = dsBuffer->Lock (nextReadPos, buffer_bytes, &buffer1,</div>
<div class="line"><a name="l05533"></a><span class="lineno"> 5533</span>  &bufferSize1, &buffer2, &bufferSize2, 0);</div>
<div class="line"><a name="l05534"></a><span class="lineno"> 5534</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05535"></a><span class="lineno"> 5535</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to lock DS buffer during capture (%s): %s."</span>,</div>
<div class="line"><a name="l05536"></a><span class="lineno"> 5536</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05537"></a><span class="lineno"> 5537</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05538"></a><span class="lineno"> 5538</span>  }</div>
<div class="line"><a name="l05539"></a><span class="lineno"> 5539</span> </div>
<div class="line"><a name="l05540"></a><span class="lineno"> 5540</span>  <span class="comment">// Copy our buffer into the DS buffer</span></div>
<div class="line"><a name="l05541"></a><span class="lineno"> 5541</span>  CopyMemory(buffer, buffer1, bufferSize1);</div>
<div class="line"><a name="l05542"></a><span class="lineno"> 5542</span>  <span class="keywordflow">if</span> (buffer2 != <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) CopyMemory(buffer+bufferSize1, buffer2, bufferSize2);</div>
<div class="line"><a name="l05543"></a><span class="lineno"> 5543</span> </div>
<div class="line"><a name="l05544"></a><span class="lineno"> 5544</span>  <span class="comment">// Update our buffer offset and unlock sound buffer</span></div>
<div class="line"><a name="l05545"></a><span class="lineno"> 5545</span>  nextReadPos = (nextReadPos + bufferSize1 + bufferSize2) % dsBufferSize;</div>
<div class="line"><a name="l05546"></a><span class="lineno"> 5546</span>  dsBuffer->Unlock (buffer1, bufferSize1, buffer2, bufferSize2);</div>
<div class="line"><a name="l05547"></a><span class="lineno"> 5547</span>  <span class="keywordflow">if</span> ( FAILED(result) ) {</div>
<div class="line"><a name="l05548"></a><span class="lineno"> 5548</span>  sprintf(message, <span class="stringliteral">"RtAudio: Unable to unlock DS buffer during capture (%s): %s."</span>,</div>
<div class="line"><a name="l05549"></a><span class="lineno"> 5549</span>  devices[stream->device[1]].name, getErrorString(result));</div>
<div class="line"><a name="l05550"></a><span class="lineno"> 5550</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05551"></a><span class="lineno"> 5551</span>  }</div>
<div class="line"><a name="l05552"></a><span class="lineno"> 5552</span>  stream->handle[1].bufferPointer = nextReadPos;</div>
<div class="line"><a name="l05553"></a><span class="lineno"> 5553</span> </div>
<div class="line"><a name="l05554"></a><span class="lineno"> 5554</span>  <span class="comment">// No byte swapping necessary in DirectSound implementation.</span></div>
<div class="line"><a name="l05555"></a><span class="lineno"> 5555</span> </div>
<div class="line"><a name="l05556"></a><span class="lineno"> 5556</span>  <span class="comment">// Do buffer conversion if necessary.</span></div>
<div class="line"><a name="l05557"></a><span class="lineno"> 5557</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1])</div>
<div class="line"><a name="l05558"></a><span class="lineno"> 5558</span>  convertStreamBuffer(stream, INPUT);</div>
<div class="line"><a name="l05559"></a><span class="lineno"> 5559</span>  }</div>
<div class="line"><a name="l05560"></a><span class="lineno"> 5560</span> </div>
<div class="line"><a name="l05561"></a><span class="lineno"> 5561</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l05562"></a><span class="lineno"> 5562</span> </div>
<div class="line"><a name="l05563"></a><span class="lineno"> 5563</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback && stopStream)</div>
<div class="line"><a name="l05564"></a><span class="lineno"> 5564</span>  this-><a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>(streamId);</div>
<div class="line"><a name="l05565"></a><span class="lineno"> 5565</span> }</div>
<div class="line"><a name="l05566"></a><span class="lineno"> 5566</span> </div>
<div class="line"><a name="l05567"></a><span class="lineno"> 5567</span> <span class="comment">// Definitions for utility functions and callbacks</span></div>
<div class="line"><a name="l05568"></a><span class="lineno"> 5568</span> <span class="comment">// specific to the DirectSound implementation.</span></div>
<div class="line"><a name="l05569"></a><span class="lineno"> 5569</span> </div>
<div class="line"><a name="l05570"></a><span class="lineno"> 5570</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">unsigned</span> __stdcall callbackHandler(<span class="keywordtype">void</span> *ptr)</div>
<div class="line"><a name="l05571"></a><span class="lineno"> 5571</span> {</div>
<div class="line"><a name="l05572"></a><span class="lineno"> 5572</span>  <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *info = (<a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *) ptr;</div>
<div class="line"><a name="l05573"></a><span class="lineno"> 5573</span>  <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *<span class="keywordtype">object</span> = (<a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *) info-><a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a>;</div>
<div class="line"><a name="l05574"></a><span class="lineno"> 5574</span>  <span class="keywordtype">int</span> stream = info-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a>;</div>
<div class="line"><a name="l05575"></a><span class="lineno"> 5575</span>  <span class="keywordtype">bool</span> *usingCallback = &info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a>;</div>
<div class="line"><a name="l05576"></a><span class="lineno"> 5576</span> </div>
<div class="line"><a name="l05577"></a><span class="lineno"> 5577</span>  while ( *usingCallback ) {</div>
<div class="line"><a name="l05578"></a><span class="lineno"> 5578</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l05579"></a><span class="lineno"> 5579</span>  <span class="keywordtype">object</span>->tickStream(stream);</div>
<div class="line"><a name="l05580"></a><span class="lineno"> 5580</span>  }</div>
<div class="line"><a name="l05581"></a><span class="lineno"> 5581</span>  <span class="keywordflow">catch</span> (<a class="code" href="classRtError.html" title="Exception handling class for RtAudio.">RtError</a> &exception) {</div>
<div class="line"><a name="l05582"></a><span class="lineno"> 5582</span>  fprintf(stderr, <span class="stringliteral">"\nRtAudio: Callback thread error (%s) ... closing thread.\n\n"</span>,</div>
<div class="line"><a name="l05583"></a><span class="lineno"> 5583</span>  exception.<a class="code" href="classRtError.html#aeb19bdd498bb37c935b1dfbc41195114" title="Returns the "thrown" error message string.">getMessage</a>());</div>
<div class="line"><a name="l05584"></a><span class="lineno"> 5584</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l05585"></a><span class="lineno"> 5585</span>  }</div>
<div class="line"><a name="l05586"></a><span class="lineno"> 5586</span>  }</div>
<div class="line"><a name="l05587"></a><span class="lineno"> 5587</span> </div>
<div class="line"><a name="l05588"></a><span class="lineno"> 5588</span>  _endthreadex( 0 );</div>
<div class="line"><a name="l05589"></a><span class="lineno"> 5589</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l05590"></a><span class="lineno"> 5590</span> }</div>
<div class="line"><a name="l05591"></a><span class="lineno"> 5591</span> </div>
<div class="line"><a name="l05592"></a><span class="lineno"> 5592</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#ade4c600afb2fe5c8b568db7845c7c494" title="A public method which sets a user-defined callback function for a given stream.">RtAudio :: setStreamCallback</a>(<span class="keywordtype">int</span> streamId, RTAUDIO_CALLBACK callback, <span class="keywordtype">void</span> *userData)</div>
<div class="line"><a name="l05593"></a><span class="lineno"> 5593</span> {</div>
<div class="line"><a name="l05594"></a><span class="lineno"> 5594</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l05595"></a><span class="lineno"> 5595</span> </div>
<div class="line"><a name="l05596"></a><span class="lineno"> 5596</span>  <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *info = (<a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *) &stream->callbackInfo;</div>
<div class="line"><a name="l05597"></a><span class="lineno"> 5597</span>  if ( info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> ) {</div>
<div class="line"><a name="l05598"></a><span class="lineno"> 5598</span>  sprintf(message, <span class="stringliteral">"RtAudio: A callback is already set for this stream!"</span>);</div>
<div class="line"><a name="l05599"></a><span class="lineno"> 5599</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l05600"></a><span class="lineno"> 5600</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l05601"></a><span class="lineno"> 5601</span>  }</div>
<div class="line"><a name="l05602"></a><span class="lineno"> 5602</span> </div>
<div class="line"><a name="l05603"></a><span class="lineno"> 5603</span>  info-><a class="code" href="structCALLBACK__INFO.html#a654bf7533d89783acad1e2da499e2baf">callback</a> = (<span class="keywordtype">void</span> *) callback;</div>
<div class="line"><a name="l05604"></a><span class="lineno"> 5604</span>  info-><a class="code" href="structCALLBACK__INFO.html#a5341b437d7ab1abf412ca00b063bca31">userData</a> = userData;</div>
<div class="line"><a name="l05605"></a><span class="lineno"> 5605</span>  info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l05606"></a><span class="lineno"> 5606</span>  info-><a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a> = (<span class="keywordtype">void</span> *) <span class="keyword">this</span>;</div>
<div class="line"><a name="l05607"></a><span class="lineno"> 5607</span>  info-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a> = streamId;</div>
<div class="line"><a name="l05608"></a><span class="lineno"> 5608</span> </div>
<div class="line"><a name="l05609"></a><span class="lineno"> 5609</span>  <span class="keywordtype">unsigned</span> thread_id;</div>
<div class="line"><a name="l05610"></a><span class="lineno"> 5610</span>  info-><a class="code" href="structCALLBACK__INFO.html#acdf05394473133131641e7b9d23be278">thread</a> = _beginthreadex(<a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, 0, &callbackHandler,</div>
<div class="line"><a name="l05611"></a><span class="lineno"> 5611</span>  &stream->callbackInfo, 0, &thread_id);</div>
<div class="line"><a name="l05612"></a><span class="lineno"> 5612</span>  <span class="keywordflow">if</span> (info-><a class="code" href="structCALLBACK__INFO.html#acdf05394473133131641e7b9d23be278">thread</a> == 0) {</div>
<div class="line"><a name="l05613"></a><span class="lineno"> 5613</span>  info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a> = <span class="keyword">false</span>;</div>
<div class="line"><a name="l05614"></a><span class="lineno"> 5614</span>  sprintf(message, <span class="stringliteral">"RtAudio: error starting callback thread!"</span>);</div>
<div class="line"><a name="l05615"></a><span class="lineno"> 5615</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4aeb6282f991e2d93ab294a4272fc3f6c6">RtError::THREAD_ERROR</a>);</div>
<div class="line"><a name="l05616"></a><span class="lineno"> 5616</span>  }</div>
<div class="line"><a name="l05617"></a><span class="lineno"> 5617</span> </div>
<div class="line"><a name="l05618"></a><span class="lineno"> 5618</span>  <span class="comment">// When spawning multiple threads in quick succession, it appears to be</span></div>
<div class="line"><a name="l05619"></a><span class="lineno"> 5619</span>  <span class="comment">// necessary to wait a bit for each to initialize ... another windoism!</span></div>
<div class="line"><a name="l05620"></a><span class="lineno"> 5620</span>  Sleep(1);</div>
<div class="line"><a name="l05621"></a><span class="lineno"> 5621</span> }</div>
<div class="line"><a name="l05622"></a><span class="lineno"> 5622</span> </div>
<div class="line"><a name="l05623"></a><span class="lineno"> 5623</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> CALLBACK deviceCountCallback(LPGUID lpguid,</div>
<div class="line"><a name="l05624"></a><span class="lineno"> 5624</span>  LPCSTR lpcstrDescription,</div>
<div class="line"><a name="l05625"></a><span class="lineno"> 5625</span>  LPCSTR lpcstrModule,</div>
<div class="line"><a name="l05626"></a><span class="lineno"> 5626</span>  LPVOID lpContext)</div>
<div class="line"><a name="l05627"></a><span class="lineno"> 5627</span> {</div>
<div class="line"><a name="l05628"></a><span class="lineno"> 5628</span>  <span class="keywordtype">int</span> *pointer = ((<span class="keywordtype">int</span> *) lpContext);</div>
<div class="line"><a name="l05629"></a><span class="lineno"> 5629</span>  (*pointer)++;</div>
<div class="line"><a name="l05630"></a><span class="lineno"> 5630</span> </div>
<div class="line"><a name="l05631"></a><span class="lineno"> 5631</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l05632"></a><span class="lineno"> 5632</span> }</div>
<div class="line"><a name="l05633"></a><span class="lineno"> 5633</span> </div>
<div class="line"><a name="l05634"></a><span class="lineno"> 5634</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> CALLBACK deviceInfoCallback(LPGUID lpguid,</div>
<div class="line"><a name="l05635"></a><span class="lineno"> 5635</span>  LPCSTR lpcstrDescription,</div>
<div class="line"><a name="l05636"></a><span class="lineno"> 5636</span>  LPCSTR lpcstrModule,</div>
<div class="line"><a name="l05637"></a><span class="lineno"> 5637</span>  LPVOID lpContext)</div>
<div class="line"><a name="l05638"></a><span class="lineno"> 5638</span> {</div>
<div class="line"><a name="l05639"></a><span class="lineno"> 5639</span>  enum_info *info = ((enum_info *) lpContext);</div>
<div class="line"><a name="l05640"></a><span class="lineno"> 5640</span>  <span class="keywordflow">while</span> (strlen(info->name) > 0) info++;</div>
<div class="line"><a name="l05641"></a><span class="lineno"> 5641</span> </div>
<div class="line"><a name="l05642"></a><span class="lineno"> 5642</span>  strncpy(info->name, lpcstrDescription, 64);</div>
<div class="line"><a name="l05643"></a><span class="lineno"> 5643</span>  info->id = lpguid;</div>
<div class="line"><a name="l05644"></a><span class="lineno"> 5644</span> </div>
<div class="line"><a name="l05645"></a><span class="lineno"> 5645</span>  HRESULT hr;</div>
<div class="line"><a name="l05646"></a><span class="lineno"> 5646</span>  info->isValid = <span class="keyword">false</span>;</div>
<div class="line"><a name="l05647"></a><span class="lineno"> 5647</span>  <span class="keywordflow">if</span> (info->isInput == <span class="keyword">true</span>) {</div>
<div class="line"><a name="l05648"></a><span class="lineno"> 5648</span>  DSCCAPS caps;</div>
<div class="line"><a name="l05649"></a><span class="lineno"> 5649</span>  LPDIRECTSOUNDCAPTURE object;</div>
<div class="line"><a name="l05650"></a><span class="lineno"> 5650</span> </div>
<div class="line"><a name="l05651"></a><span class="lineno"> 5651</span>  hr = DirectSoundCaptureCreate( lpguid, &<span class="keywordtype">object</span>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l05652"></a><span class="lineno"> 5652</span>  <span class="keywordflow">if</span>( hr != DS_OK ) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l05653"></a><span class="lineno"> 5653</span> </div>
<div class="line"><a name="l05654"></a><span class="lineno"> 5654</span>  caps.dwSize = <span class="keyword">sizeof</span>(caps);</div>
<div class="line"><a name="l05655"></a><span class="lineno"> 5655</span>  hr = <span class="keywordtype">object</span>->GetCaps( &caps );</div>
<div class="line"><a name="l05656"></a><span class="lineno"> 5656</span>  <span class="keywordflow">if</span>( hr == DS_OK ) {</div>
<div class="line"><a name="l05657"></a><span class="lineno"> 5657</span>  <span class="keywordflow">if</span> (caps.dwChannels > 0 && caps.dwFormats > 0)</div>
<div class="line"><a name="l05658"></a><span class="lineno"> 5658</span>  info->isValid = <span class="keyword">true</span>;</div>
<div class="line"><a name="l05659"></a><span class="lineno"> 5659</span>  }</div>
<div class="line"><a name="l05660"></a><span class="lineno"> 5660</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l05661"></a><span class="lineno"> 5661</span>  }</div>
<div class="line"><a name="l05662"></a><span class="lineno"> 5662</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05663"></a><span class="lineno"> 5663</span>  DSCAPS caps;</div>
<div class="line"><a name="l05664"></a><span class="lineno"> 5664</span>  LPDIRECTSOUND object;</div>
<div class="line"><a name="l05665"></a><span class="lineno"> 5665</span>  hr = DirectSoundCreate( lpguid, &<span class="keywordtype">object</span>, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> );</div>
<div class="line"><a name="l05666"></a><span class="lineno"> 5666</span>  <span class="keywordflow">if</span>( hr != DS_OK ) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l05667"></a><span class="lineno"> 5667</span> </div>
<div class="line"><a name="l05668"></a><span class="lineno"> 5668</span>  caps.dwSize = <span class="keyword">sizeof</span>(caps);</div>
<div class="line"><a name="l05669"></a><span class="lineno"> 5669</span>  hr = <span class="keywordtype">object</span>->GetCaps( &caps );</div>
<div class="line"><a name="l05670"></a><span class="lineno"> 5670</span>  <span class="keywordflow">if</span>( hr == DS_OK ) {</div>
<div class="line"><a name="l05671"></a><span class="lineno"> 5671</span>  <span class="keywordflow">if</span> ( caps.dwFlags & DSCAPS_PRIMARYMONO || caps.dwFlags & DSCAPS_PRIMARYSTEREO )</div>
<div class="line"><a name="l05672"></a><span class="lineno"> 5672</span>  info->isValid = <span class="keyword">true</span>;</div>
<div class="line"><a name="l05673"></a><span class="lineno"> 5673</span>  }</div>
<div class="line"><a name="l05674"></a><span class="lineno"> 5674</span>  <span class="keywordtype">object</span>->Release();</div>
<div class="line"><a name="l05675"></a><span class="lineno"> 5675</span>  }</div>
<div class="line"><a name="l05676"></a><span class="lineno"> 5676</span> </div>
<div class="line"><a name="l05677"></a><span class="lineno"> 5677</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l05678"></a><span class="lineno"> 5678</span> }</div>
<div class="line"><a name="l05679"></a><span class="lineno"> 5679</span> </div>
<div class="line"><a name="l05680"></a><span class="lineno"> 5680</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> CALLBACK defaultDeviceCallback(LPGUID lpguid,</div>
<div class="line"><a name="l05681"></a><span class="lineno"> 5681</span>  LPCSTR lpcstrDescription,</div>
<div class="line"><a name="l05682"></a><span class="lineno"> 5682</span>  LPCSTR lpcstrModule,</div>
<div class="line"><a name="l05683"></a><span class="lineno"> 5683</span>  LPVOID lpContext)</div>
<div class="line"><a name="l05684"></a><span class="lineno"> 5684</span> {</div>
<div class="line"><a name="l05685"></a><span class="lineno"> 5685</span>  enum_info *info = ((enum_info *) lpContext);</div>
<div class="line"><a name="l05686"></a><span class="lineno"> 5686</span> </div>
<div class="line"><a name="l05687"></a><span class="lineno"> 5687</span>  <span class="keywordflow">if</span> ( lpguid == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> ) {</div>
<div class="line"><a name="l05688"></a><span class="lineno"> 5688</span>  strncpy(info->name, lpcstrDescription, 64);</div>
<div class="line"><a name="l05689"></a><span class="lineno"> 5689</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l05690"></a><span class="lineno"> 5690</span>  }</div>
<div class="line"><a name="l05691"></a><span class="lineno"> 5691</span> </div>
<div class="line"><a name="l05692"></a><span class="lineno"> 5692</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l05693"></a><span class="lineno"> 5693</span> }</div>
<div class="line"><a name="l05694"></a><span class="lineno"> 5694</span> </div>
<div class="line"><a name="l05695"></a><span class="lineno"> 5695</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> CALLBACK deviceIdCallback(LPGUID lpguid,</div>
<div class="line"><a name="l05696"></a><span class="lineno"> 5696</span>  LPCSTR lpcstrDescription,</div>
<div class="line"><a name="l05697"></a><span class="lineno"> 5697</span>  LPCSTR lpcstrModule,</div>
<div class="line"><a name="l05698"></a><span class="lineno"> 5698</span>  LPVOID lpContext)</div>
<div class="line"><a name="l05699"></a><span class="lineno"> 5699</span> {</div>
<div class="line"><a name="l05700"></a><span class="lineno"> 5700</span>  enum_info *info = ((enum_info *) lpContext);</div>
<div class="line"><a name="l05701"></a><span class="lineno"> 5701</span> </div>
<div class="line"><a name="l05702"></a><span class="lineno"> 5702</span>  <span class="keywordflow">if</span> ( strncmp( info->name, lpcstrDescription, 64 ) == 0 ) {</div>
<div class="line"><a name="l05703"></a><span class="lineno"> 5703</span>  info->id = lpguid;</div>
<div class="line"><a name="l05704"></a><span class="lineno"> 5704</span>  info->isValid = <span class="keyword">true</span>;</div>
<div class="line"><a name="l05705"></a><span class="lineno"> 5705</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l05706"></a><span class="lineno"> 5706</span>  }</div>
<div class="line"><a name="l05707"></a><span class="lineno"> 5707</span> </div>
<div class="line"><a name="l05708"></a><span class="lineno"> 5708</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l05709"></a><span class="lineno"> 5709</span> }</div>
<div class="line"><a name="l05710"></a><span class="lineno"> 5710</span> </div>
<div class="line"><a name="l05711"></a><span class="lineno"> 5711</span> <span class="keyword">static</span> <span class="keywordtype">char</span>* getErrorString(<span class="keywordtype">int</span> code)</div>
<div class="line"><a name="l05712"></a><span class="lineno"> 5712</span> {</div>
<div class="line"><a name="l05713"></a><span class="lineno"> 5713</span>  <span class="keywordflow">switch</span> (code) {</div>
<div class="line"><a name="l05714"></a><span class="lineno"> 5714</span> </div>
<div class="line"><a name="l05715"></a><span class="lineno"> 5715</span>  <span class="keywordflow">case</span> DSERR_ALLOCATED:</div>
<div class="line"><a name="l05716"></a><span class="lineno"> 5716</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound already allocated"</span>;</div>
<div class="line"><a name="l05717"></a><span class="lineno"> 5717</span> </div>
<div class="line"><a name="l05718"></a><span class="lineno"> 5718</span>  <span class="keywordflow">case</span> DSERR_CONTROLUNAVAIL:</div>
<div class="line"><a name="l05719"></a><span class="lineno"> 5719</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound control unavailable"</span>;</div>
<div class="line"><a name="l05720"></a><span class="lineno"> 5720</span> </div>
<div class="line"><a name="l05721"></a><span class="lineno"> 5721</span>  <span class="keywordflow">case</span> DSERR_INVALIDPARAM:</div>
<div class="line"><a name="l05722"></a><span class="lineno"> 5722</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound invalid parameter"</span>;</div>
<div class="line"><a name="l05723"></a><span class="lineno"> 5723</span> </div>
<div class="line"><a name="l05724"></a><span class="lineno"> 5724</span>  <span class="keywordflow">case</span> DSERR_INVALIDCALL:</div>
<div class="line"><a name="l05725"></a><span class="lineno"> 5725</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound invalid call"</span>;</div>
<div class="line"><a name="l05726"></a><span class="lineno"> 5726</span> </div>
<div class="line"><a name="l05727"></a><span class="lineno"> 5727</span>  <span class="keywordflow">case</span> DSERR_GENERIC:</div>
<div class="line"><a name="l05728"></a><span class="lineno"> 5728</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound generic error"</span>;</div>
<div class="line"><a name="l05729"></a><span class="lineno"> 5729</span> </div>
<div class="line"><a name="l05730"></a><span class="lineno"> 5730</span>  <span class="keywordflow">case</span> DSERR_PRIOLEVELNEEDED:</div>
<div class="line"><a name="l05731"></a><span class="lineno"> 5731</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound Priority level needed"</span>;</div>
<div class="line"><a name="l05732"></a><span class="lineno"> 5732</span> </div>
<div class="line"><a name="l05733"></a><span class="lineno"> 5733</span>  <span class="keywordflow">case</span> DSERR_OUTOFMEMORY:</div>
<div class="line"><a name="l05734"></a><span class="lineno"> 5734</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound out of memory"</span>;</div>
<div class="line"><a name="l05735"></a><span class="lineno"> 5735</span> </div>
<div class="line"><a name="l05736"></a><span class="lineno"> 5736</span>  <span class="keywordflow">case</span> DSERR_BADFORMAT:</div>
<div class="line"><a name="l05737"></a><span class="lineno"> 5737</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound bad format"</span>;</div>
<div class="line"><a name="l05738"></a><span class="lineno"> 5738</span> </div>
<div class="line"><a name="l05739"></a><span class="lineno"> 5739</span>  <span class="keywordflow">case</span> DSERR_UNSUPPORTED:</div>
<div class="line"><a name="l05740"></a><span class="lineno"> 5740</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound unsupported error"</span>;</div>
<div class="line"><a name="l05741"></a><span class="lineno"> 5741</span> </div>
<div class="line"><a name="l05742"></a><span class="lineno"> 5742</span>  <span class="keywordflow">case</span> DSERR_NODRIVER:</div>
<div class="line"><a name="l05743"></a><span class="lineno"> 5743</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound no driver error"</span>;</div>
<div class="line"><a name="l05744"></a><span class="lineno"> 5744</span> </div>
<div class="line"><a name="l05745"></a><span class="lineno"> 5745</span>  <span class="keywordflow">case</span> DSERR_ALREADYINITIALIZED:</div>
<div class="line"><a name="l05746"></a><span class="lineno"> 5746</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound already initialized"</span>;</div>
<div class="line"><a name="l05747"></a><span class="lineno"> 5747</span> </div>
<div class="line"><a name="l05748"></a><span class="lineno"> 5748</span>  <span class="keywordflow">case</span> DSERR_NOAGGREGATION:</div>
<div class="line"><a name="l05749"></a><span class="lineno"> 5749</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound no aggregation"</span>;</div>
<div class="line"><a name="l05750"></a><span class="lineno"> 5750</span> </div>
<div class="line"><a name="l05751"></a><span class="lineno"> 5751</span>  <span class="keywordflow">case</span> DSERR_BUFFERLOST:</div>
<div class="line"><a name="l05752"></a><span class="lineno"> 5752</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound buffer lost"</span>;</div>
<div class="line"><a name="l05753"></a><span class="lineno"> 5753</span> </div>
<div class="line"><a name="l05754"></a><span class="lineno"> 5754</span>  <span class="keywordflow">case</span> DSERR_OTHERAPPHASPRIO:</div>
<div class="line"><a name="l05755"></a><span class="lineno"> 5755</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound other app has priority"</span>;</div>
<div class="line"><a name="l05756"></a><span class="lineno"> 5756</span> </div>
<div class="line"><a name="l05757"></a><span class="lineno"> 5757</span>  <span class="keywordflow">case</span> DSERR_UNINITIALIZED:</div>
<div class="line"><a name="l05758"></a><span class="lineno"> 5758</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound uninitialized"</span>;</div>
<div class="line"><a name="l05759"></a><span class="lineno"> 5759</span> </div>
<div class="line"><a name="l05760"></a><span class="lineno"> 5760</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l05761"></a><span class="lineno"> 5761</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Direct Sound unknown error"</span>;</div>
<div class="line"><a name="l05762"></a><span class="lineno"> 5762</span>  }</div>
<div class="line"><a name="l05763"></a><span class="lineno"> 5763</span> }</div>
<div class="line"><a name="l05764"></a><span class="lineno"> 5764</span> </div>
<div class="line"><a name="l05765"></a><span class="lineno"> 5765</span> <span class="comment">//******************** End of __WINDOWS_DS__ *********************//</span></div>
<div class="line"><a name="l05766"></a><span class="lineno"> 5766</span> </div>
<div class="line"><a name="l05767"></a><span class="lineno"> 5767</span> <span class="preprocessor">#elif defined(__IRIX_AL__) // SGI's AL API for IRIX</span></div>
<div class="line"><a name="l05768"></a><span class="lineno"> 5768</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l05769"></a><span class="lineno"> 5769</span> <span class="preprocessor">#include <unistd.h></span></div>
<div class="line"><a name="l05770"></a><span class="lineno"> 5770</span> <span class="preprocessor">#include <errno.h></span></div>
<div class="line"><a name="l05771"></a><span class="lineno"> 5771</span> </div>
<div class="line"><a name="l05772"></a><span class="lineno"> 5772</span> <span class="keywordtype">void</span> RtAudio :: initialize(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l05773"></a><span class="lineno"> 5773</span> {</div>
<div class="line"><a name="l05774"></a><span class="lineno"> 5774</span>  <span class="comment">// Count cards and devices</span></div>
<div class="line"><a name="l05775"></a><span class="lineno"> 5775</span>  nDevices = 0;</div>
<div class="line"><a name="l05776"></a><span class="lineno"> 5776</span> </div>
<div class="line"><a name="l05777"></a><span class="lineno"> 5777</span>  <span class="comment">// Determine the total number of input and output devices.</span></div>
<div class="line"><a name="l05778"></a><span class="lineno"> 5778</span>  nDevices = alQueryValues(AL_SYSTEM, AL_DEVICES, 0, 0, 0, 0);</div>
<div class="line"><a name="l05779"></a><span class="lineno"> 5779</span>  <span class="keywordflow">if</span> (nDevices < 0) {</div>
<div class="line"><a name="l05780"></a><span class="lineno"> 5780</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error counting devices: %s."</span>,</div>
<div class="line"><a name="l05781"></a><span class="lineno"> 5781</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l05782"></a><span class="lineno"> 5782</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05783"></a><span class="lineno"> 5783</span>  }</div>
<div class="line"><a name="l05784"></a><span class="lineno"> 5784</span> </div>
<div class="line"><a name="l05785"></a><span class="lineno"> 5785</span>  <span class="keywordflow">if</span> (nDevices <= 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l05786"></a><span class="lineno"> 5786</span> </div>
<div class="line"><a name="l05787"></a><span class="lineno"> 5787</span>  ALvalue *vls = (ALvalue *) <span class="keyword">new</span> ALvalue[nDevices];</div>
<div class="line"><a name="l05788"></a><span class="lineno"> 5788</span> </div>
<div class="line"><a name="l05789"></a><span class="lineno"> 5789</span>  <span class="comment">// Allocate the RTAUDIO_DEVICE structures.</span></div>
<div class="line"><a name="l05790"></a><span class="lineno"> 5790</span>  devices = (RTAUDIO_DEVICE *) calloc(nDevices, <span class="keyword">sizeof</span>(RTAUDIO_DEVICE));</div>
<div class="line"><a name="l05791"></a><span class="lineno"> 5791</span>  <span class="keywordflow">if</span> (devices == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l05792"></a><span class="lineno"> 5792</span>  sprintf(message, <span class="stringliteral">"RtAudio: memory allocation error!"</span>);</div>
<div class="line"><a name="l05793"></a><span class="lineno"> 5793</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ab4f813e5a36905c89d4081a59497432e">RtError::MEMORY_ERROR</a>);</div>
<div class="line"><a name="l05794"></a><span class="lineno"> 5794</span>  }</div>
<div class="line"><a name="l05795"></a><span class="lineno"> 5795</span> </div>
<div class="line"><a name="l05796"></a><span class="lineno"> 5796</span>  <span class="comment">// Write device ascii identifiers and resource ids to device info</span></div>
<div class="line"><a name="l05797"></a><span class="lineno"> 5797</span>  <span class="comment">// structure.</span></div>
<div class="line"><a name="l05798"></a><span class="lineno"> 5798</span>  <span class="keywordtype">char</span> name[32];</div>
<div class="line"><a name="l05799"></a><span class="lineno"> 5799</span>  <span class="keywordtype">int</span> outs, ins, i;</div>
<div class="line"><a name="l05800"></a><span class="lineno"> 5800</span>  ALpv pvs[1];</div>
<div class="line"><a name="l05801"></a><span class="lineno"> 5801</span>  pvs[0].param = AL_NAME;</div>
<div class="line"><a name="l05802"></a><span class="lineno"> 5802</span>  pvs[0].value.ptr = name;</div>
<div class="line"><a name="l05803"></a><span class="lineno"> 5803</span>  pvs[0].sizeIn = 32;</div>
<div class="line"><a name="l05804"></a><span class="lineno"> 5804</span> </div>
<div class="line"><a name="l05805"></a><span class="lineno"> 5805</span>  outs = alQueryValues(AL_SYSTEM, AL_DEFAULT_OUTPUT, vls, nDevices, 0, 0);</div>
<div class="line"><a name="l05806"></a><span class="lineno"> 5806</span>  <span class="keywordflow">if</span> (outs < 0) {</div>
<div class="line"><a name="l05807"></a><span class="lineno"> 5807</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting output devices: %s."</span>,</div>
<div class="line"><a name="l05808"></a><span class="lineno"> 5808</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l05809"></a><span class="lineno"> 5809</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05810"></a><span class="lineno"> 5810</span>  }</div>
<div class="line"><a name="l05811"></a><span class="lineno"> 5811</span> </div>
<div class="line"><a name="l05812"></a><span class="lineno"> 5812</span>  <span class="keywordflow">for</span> (i=0; i<outs; i++) {</div>
<div class="line"><a name="l05813"></a><span class="lineno"> 5813</span>  <span class="keywordflow">if</span> (alGetParams(vls[i].i, pvs, 1) < 0) {</div>
<div class="line"><a name="l05814"></a><span class="lineno"> 5814</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error querying output devices: %s."</span>,</div>
<div class="line"><a name="l05815"></a><span class="lineno"> 5815</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l05816"></a><span class="lineno"> 5816</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05817"></a><span class="lineno"> 5817</span>  }</div>
<div class="line"><a name="l05818"></a><span class="lineno"> 5818</span>  strncpy(devices[i].name, name, 32);</div>
<div class="line"><a name="l05819"></a><span class="lineno"> 5819</span>  devices[i].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#ae0ba0362e0084e4cdd2f96ee91260309">id</a>[0] = vls[i].i;</div>
<div class="line"><a name="l05820"></a><span class="lineno"> 5820</span>  }</div>
<div class="line"><a name="l05821"></a><span class="lineno"> 5821</span> </div>
<div class="line"><a name="l05822"></a><span class="lineno"> 5822</span>  ins = alQueryValues(AL_SYSTEM, AL_DEFAULT_INPUT, &vls[outs], nDevices-outs, 0, 0);</div>
<div class="line"><a name="l05823"></a><span class="lineno"> 5823</span>  <span class="keywordflow">if</span> (ins < 0) {</div>
<div class="line"><a name="l05824"></a><span class="lineno"> 5824</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting input devices: %s."</span>,</div>
<div class="line"><a name="l05825"></a><span class="lineno"> 5825</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l05826"></a><span class="lineno"> 5826</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05827"></a><span class="lineno"> 5827</span>  }</div>
<div class="line"><a name="l05828"></a><span class="lineno"> 5828</span> </div>
<div class="line"><a name="l05829"></a><span class="lineno"> 5829</span>  <span class="keywordflow">for</span> (i=outs; i<ins+outs; i++) {</div>
<div class="line"><a name="l05830"></a><span class="lineno"> 5830</span>  <span class="keywordflow">if</span> (alGetParams(vls[i].i, pvs, 1) < 0) {</div>
<div class="line"><a name="l05831"></a><span class="lineno"> 5831</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error querying input devices: %s."</span>,</div>
<div class="line"><a name="l05832"></a><span class="lineno"> 5832</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l05833"></a><span class="lineno"> 5833</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l05834"></a><span class="lineno"> 5834</span>  }</div>
<div class="line"><a name="l05835"></a><span class="lineno"> 5835</span>  strncpy(devices[i].name, name, 32);</div>
<div class="line"><a name="l05836"></a><span class="lineno"> 5836</span>  devices[i].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#ae0ba0362e0084e4cdd2f96ee91260309">id</a>[1] = vls[i].i;</div>
<div class="line"><a name="l05837"></a><span class="lineno"> 5837</span>  }</div>
<div class="line"><a name="l05838"></a><span class="lineno"> 5838</span> </div>
<div class="line"><a name="l05839"></a><span class="lineno"> 5839</span>  <span class="keyword">delete</span> [] vls;</div>
<div class="line"><a name="l05840"></a><span class="lineno"> 5840</span> </div>
<div class="line"><a name="l05841"></a><span class="lineno"> 5841</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l05842"></a><span class="lineno"> 5842</span> }</div>
<div class="line"><a name="l05843"></a><span class="lineno"> 5843</span> </div>
<div class="line"><a name="l05844"></a><span class="lineno"> 5844</span> <span class="keywordtype">int</span> RtAudio :: getDefaultInputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l05845"></a><span class="lineno"> 5845</span> {</div>
<div class="line"><a name="l05846"></a><span class="lineno"> 5846</span>  ALvalue value;</div>
<div class="line"><a name="l05847"></a><span class="lineno"> 5847</span>  <span class="keywordtype">int</span> result = alQueryValues(AL_SYSTEM, AL_DEFAULT_INPUT, &value, 1, 0, 0);</div>
<div class="line"><a name="l05848"></a><span class="lineno"> 5848</span>  <span class="keywordflow">if</span> (result < 0) {</div>
<div class="line"><a name="l05849"></a><span class="lineno"> 5849</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting default input device id: %s."</span>,</div>
<div class="line"><a name="l05850"></a><span class="lineno"> 5850</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l05851"></a><span class="lineno"> 5851</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l05852"></a><span class="lineno"> 5852</span>  }</div>
<div class="line"><a name="l05853"></a><span class="lineno"> 5853</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05854"></a><span class="lineno"> 5854</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<nDevices; i++ )</div>
<div class="line"><a name="l05855"></a><span class="lineno"> 5855</span>  <span class="keywordflow">if</span> ( devices[i].<span class="keywordtype">id</span>[1] == value.i ) <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l05856"></a><span class="lineno"> 5856</span>  }</div>
<div class="line"><a name="l05857"></a><span class="lineno"> 5857</span> </div>
<div class="line"><a name="l05858"></a><span class="lineno"> 5858</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l05859"></a><span class="lineno"> 5859</span> }</div>
<div class="line"><a name="l05860"></a><span class="lineno"> 5860</span> </div>
<div class="line"><a name="l05861"></a><span class="lineno"> 5861</span> <span class="keywordtype">int</span> RtAudio :: getDefaultOutputDevice(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l05862"></a><span class="lineno"> 5862</span> {</div>
<div class="line"><a name="l05863"></a><span class="lineno"> 5863</span>  ALvalue value;</div>
<div class="line"><a name="l05864"></a><span class="lineno"> 5864</span>  <span class="keywordtype">int</span> result = alQueryValues(AL_SYSTEM, AL_DEFAULT_OUTPUT, &value, 1, 0, 0);</div>
<div class="line"><a name="l05865"></a><span class="lineno"> 5865</span>  <span class="keywordflow">if</span> (result < 0) {</div>
<div class="line"><a name="l05866"></a><span class="lineno"> 5866</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting default output device id: %s."</span>,</div>
<div class="line"><a name="l05867"></a><span class="lineno"> 5867</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l05868"></a><span class="lineno"> 5868</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l05869"></a><span class="lineno"> 5869</span>  }</div>
<div class="line"><a name="l05870"></a><span class="lineno"> 5870</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05871"></a><span class="lineno"> 5871</span>  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<nDevices; i++ )</div>
<div class="line"><a name="l05872"></a><span class="lineno"> 5872</span>  <span class="keywordflow">if</span> ( devices[i].<span class="keywordtype">id</span>[0] == value.i ) <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l05873"></a><span class="lineno"> 5873</span>  }</div>
<div class="line"><a name="l05874"></a><span class="lineno"> 5874</span> </div>
<div class="line"><a name="l05875"></a><span class="lineno"> 5875</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l05876"></a><span class="lineno"> 5876</span> }</div>
<div class="line"><a name="l05877"></a><span class="lineno"> 5877</span> </div>
<div class="line"><a name="l05878"></a><span class="lineno"> 5878</span> <span class="keywordtype">void</span> RtAudio :: probeDeviceInfo(RTAUDIO_DEVICE *info)</div>
<div class="line"><a name="l05879"></a><span class="lineno"> 5879</span> {</div>
<div class="line"><a name="l05880"></a><span class="lineno"> 5880</span>  <span class="keywordtype">int</span> resource, result, i;</div>
<div class="line"><a name="l05881"></a><span class="lineno"> 5881</span>  ALvalue value;</div>
<div class="line"><a name="l05882"></a><span class="lineno"> 5882</span>  ALparamInfo pinfo;</div>
<div class="line"><a name="l05883"></a><span class="lineno"> 5883</span> </div>
<div class="line"><a name="l05884"></a><span class="lineno"> 5884</span>  <span class="comment">// Get output resource ID if it exists.</span></div>
<div class="line"><a name="l05885"></a><span class="lineno"> 5885</span>  resource = info->id[0];</div>
<div class="line"><a name="l05886"></a><span class="lineno"> 5886</span>  <span class="keywordflow">if</span> (resource > 0) {</div>
<div class="line"><a name="l05887"></a><span class="lineno"> 5887</span> </div>
<div class="line"><a name="l05888"></a><span class="lineno"> 5888</span>  <span class="comment">// Probe output device parameters.</span></div>
<div class="line"><a name="l05889"></a><span class="lineno"> 5889</span>  result = alQueryValues(resource, AL_CHANNELS, &value, 1, 0, 0);</div>
<div class="line"><a name="l05890"></a><span class="lineno"> 5890</span>  <span class="keywordflow">if</span> (result < 0) {</div>
<div class="line"><a name="l05891"></a><span class="lineno"> 5891</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting device (%s) channels: %s."</span>,</div>
<div class="line"><a name="l05892"></a><span class="lineno"> 5892</span>  info->name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l05893"></a><span class="lineno"> 5893</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l05894"></a><span class="lineno"> 5894</span>  }</div>
<div class="line"><a name="l05895"></a><span class="lineno"> 5895</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05896"></a><span class="lineno"> 5896</span>  info->maxOutputChannels = value.i;</div>
<div class="line"><a name="l05897"></a><span class="lineno"> 5897</span>  info->minOutputChannels = 1;</div>
<div class="line"><a name="l05898"></a><span class="lineno"> 5898</span>  }</div>
<div class="line"><a name="l05899"></a><span class="lineno"> 5899</span> </div>
<div class="line"><a name="l05900"></a><span class="lineno"> 5900</span>  result = alGetParamInfo(resource, AL_RATE, &pinfo);</div>
<div class="line"><a name="l05901"></a><span class="lineno"> 5901</span>  <span class="keywordflow">if</span> (result < 0) {</div>
<div class="line"><a name="l05902"></a><span class="lineno"> 5902</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting device (%s) rates: %s."</span>,</div>
<div class="line"><a name="l05903"></a><span class="lineno"> 5903</span>  info->name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l05904"></a><span class="lineno"> 5904</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l05905"></a><span class="lineno"> 5905</span>  }</div>
<div class="line"><a name="l05906"></a><span class="lineno"> 5906</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05907"></a><span class="lineno"> 5907</span>  info->nSampleRates = 0;</div>
<div class="line"><a name="l05908"></a><span class="lineno"> 5908</span>  <span class="keywordflow">for</span> (i=0; i<<a class="code" href="classRtAudio.html#a7405def6b99ff5d2c0f95d885514d61ca30fa0221e6d99b2845bdff75d1894289">MAX_SAMPLE_RATES</a>; i++) {</div>
<div class="line"><a name="l05909"></a><span class="lineno"> 5909</span>  <span class="keywordflow">if</span> ( SAMPLE_RATES[i] >= pinfo.min.i && SAMPLE_RATES[i] <= pinfo.max.i ) {</div>
<div class="line"><a name="l05910"></a><span class="lineno"> 5910</span>  info->sampleRates[info->nSampleRates] = SAMPLE_RATES[i];</div>
<div class="line"><a name="l05911"></a><span class="lineno"> 5911</span>  info->nSampleRates++;</div>
<div class="line"><a name="l05912"></a><span class="lineno"> 5912</span>  }</div>
<div class="line"><a name="l05913"></a><span class="lineno"> 5913</span>  }</div>
<div class="line"><a name="l05914"></a><span class="lineno"> 5914</span>  }</div>
<div class="line"><a name="l05915"></a><span class="lineno"> 5915</span> </div>
<div class="line"><a name="l05916"></a><span class="lineno"> 5916</span>  <span class="comment">// The AL library supports all our formats, except 24-bit and 32-bit ints.</span></div>
<div class="line"><a name="l05917"></a><span class="lineno"> 5917</span>  info->nativeFormats = (<a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RTAUDIO_FORMAT</a>) 51;</div>
<div class="line"><a name="l05918"></a><span class="lineno"> 5918</span>  }</div>
<div class="line"><a name="l05919"></a><span class="lineno"> 5919</span> </div>
<div class="line"><a name="l05920"></a><span class="lineno"> 5920</span>  <span class="comment">// Now get input resource ID if it exists.</span></div>
<div class="line"><a name="l05921"></a><span class="lineno"> 5921</span>  resource = info->id[1];</div>
<div class="line"><a name="l05922"></a><span class="lineno"> 5922</span>  <span class="keywordflow">if</span> (resource > 0) {</div>
<div class="line"><a name="l05923"></a><span class="lineno"> 5923</span> </div>
<div class="line"><a name="l05924"></a><span class="lineno"> 5924</span>  <span class="comment">// Probe input device parameters.</span></div>
<div class="line"><a name="l05925"></a><span class="lineno"> 5925</span>  result = alQueryValues(resource, AL_CHANNELS, &value, 1, 0, 0);</div>
<div class="line"><a name="l05926"></a><span class="lineno"> 5926</span>  <span class="keywordflow">if</span> (result < 0) {</div>
<div class="line"><a name="l05927"></a><span class="lineno"> 5927</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting device (%s) channels: %s."</span>,</div>
<div class="line"><a name="l05928"></a><span class="lineno"> 5928</span>  info->name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l05929"></a><span class="lineno"> 5929</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l05930"></a><span class="lineno"> 5930</span>  }</div>
<div class="line"><a name="l05931"></a><span class="lineno"> 5931</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05932"></a><span class="lineno"> 5932</span>  info->maxInputChannels = value.i;</div>
<div class="line"><a name="l05933"></a><span class="lineno"> 5933</span>  info->minInputChannels = 1;</div>
<div class="line"><a name="l05934"></a><span class="lineno"> 5934</span>  }</div>
<div class="line"><a name="l05935"></a><span class="lineno"> 5935</span> </div>
<div class="line"><a name="l05936"></a><span class="lineno"> 5936</span>  result = alGetParamInfo(resource, AL_RATE, &pinfo);</div>
<div class="line"><a name="l05937"></a><span class="lineno"> 5937</span>  <span class="keywordflow">if</span> (result < 0) {</div>
<div class="line"><a name="l05938"></a><span class="lineno"> 5938</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting device (%s) rates: %s."</span>,</div>
<div class="line"><a name="l05939"></a><span class="lineno"> 5939</span>  info->name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l05940"></a><span class="lineno"> 5940</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l05941"></a><span class="lineno"> 5941</span>  }</div>
<div class="line"><a name="l05942"></a><span class="lineno"> 5942</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l05943"></a><span class="lineno"> 5943</span>  <span class="comment">// In the case of the default device, these values will</span></div>
<div class="line"><a name="l05944"></a><span class="lineno"> 5944</span>  <span class="comment">// overwrite the rates determined for the output device. Since</span></div>
<div class="line"><a name="l05945"></a><span class="lineno"> 5945</span>  <span class="comment">// the input device is most likely to be more limited than the</span></div>
<div class="line"><a name="l05946"></a><span class="lineno"> 5946</span>  <span class="comment">// output device, this is ok.</span></div>
<div class="line"><a name="l05947"></a><span class="lineno"> 5947</span>  info->nSampleRates = 0;</div>
<div class="line"><a name="l05948"></a><span class="lineno"> 5948</span>  <span class="keywordflow">for</span> (i=0; i<<a class="code" href="classRtAudio.html#a7405def6b99ff5d2c0f95d885514d61ca30fa0221e6d99b2845bdff75d1894289">MAX_SAMPLE_RATES</a>; i++) {</div>
<div class="line"><a name="l05949"></a><span class="lineno"> 5949</span>  <span class="keywordflow">if</span> ( SAMPLE_RATES[i] >= pinfo.min.i && SAMPLE_RATES[i] <= pinfo.max.i ) {</div>
<div class="line"><a name="l05950"></a><span class="lineno"> 5950</span>  info->sampleRates[info->nSampleRates] = SAMPLE_RATES[i];</div>
<div class="line"><a name="l05951"></a><span class="lineno"> 5951</span>  info->nSampleRates++;</div>
<div class="line"><a name="l05952"></a><span class="lineno"> 5952</span>  }</div>
<div class="line"><a name="l05953"></a><span class="lineno"> 5953</span>  }</div>
<div class="line"><a name="l05954"></a><span class="lineno"> 5954</span>  }</div>
<div class="line"><a name="l05955"></a><span class="lineno"> 5955</span> </div>
<div class="line"><a name="l05956"></a><span class="lineno"> 5956</span>  <span class="comment">// The AL library supports all our formats, except 24-bit and 32-bit ints.</span></div>
<div class="line"><a name="l05957"></a><span class="lineno"> 5957</span>  info->nativeFormats = (<a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RTAUDIO_FORMAT</a>) 51;</div>
<div class="line"><a name="l05958"></a><span class="lineno"> 5958</span>  }</div>
<div class="line"><a name="l05959"></a><span class="lineno"> 5959</span> </div>
<div class="line"><a name="l05960"></a><span class="lineno"> 5960</span>  <span class="keywordflow">if</span> ( info->maxInputChannels == 0 && info->maxOutputChannels == 0 )</div>
<div class="line"><a name="l05961"></a><span class="lineno"> 5961</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l05962"></a><span class="lineno"> 5962</span>  <span class="keywordflow">if</span> ( info->nSampleRates == 0 )</div>
<div class="line"><a name="l05963"></a><span class="lineno"> 5963</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l05964"></a><span class="lineno"> 5964</span> </div>
<div class="line"><a name="l05965"></a><span class="lineno"> 5965</span>  <span class="comment">// Determine duplex status.</span></div>
<div class="line"><a name="l05966"></a><span class="lineno"> 5966</span>  <span class="keywordflow">if</span> (info->maxInputChannels < info->maxOutputChannels)</div>
<div class="line"><a name="l05967"></a><span class="lineno"> 5967</span>  info->maxDuplexChannels = info->maxInputChannels;</div>
<div class="line"><a name="l05968"></a><span class="lineno"> 5968</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l05969"></a><span class="lineno"> 5969</span>  info->maxDuplexChannels = info->maxOutputChannels;</div>
<div class="line"><a name="l05970"></a><span class="lineno"> 5970</span>  <span class="keywordflow">if</span> (info->minInputChannels < info->minOutputChannels)</div>
<div class="line"><a name="l05971"></a><span class="lineno"> 5971</span>  info->minDuplexChannels = info->minInputChannels;</div>
<div class="line"><a name="l05972"></a><span class="lineno"> 5972</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l05973"></a><span class="lineno"> 5973</span>  info->minDuplexChannels = info->minOutputChannels;</div>
<div class="line"><a name="l05974"></a><span class="lineno"> 5974</span> </div>
<div class="line"><a name="l05975"></a><span class="lineno"> 5975</span>  <span class="keywordflow">if</span> ( info->maxDuplexChannels > 0 ) info->hasDuplexSupport = <span class="keyword">true</span>;</div>
<div class="line"><a name="l05976"></a><span class="lineno"> 5976</span>  <span class="keywordflow">else</span> info->hasDuplexSupport = <span class="keyword">false</span>;</div>
<div class="line"><a name="l05977"></a><span class="lineno"> 5977</span> </div>
<div class="line"><a name="l05978"></a><span class="lineno"> 5978</span>  info->probed = <span class="keyword">true</span>;</div>
<div class="line"><a name="l05979"></a><span class="lineno"> 5979</span> </div>
<div class="line"><a name="l05980"></a><span class="lineno"> 5980</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l05981"></a><span class="lineno"> 5981</span> }</div>
<div class="line"><a name="l05982"></a><span class="lineno"> 5982</span> </div>
<div class="line"><a name="l05983"></a><span class="lineno"> 5983</span> <span class="keywordtype">bool</span> RtAudio :: probeDeviceOpen(<span class="keywordtype">int</span> device, RTAUDIO_STREAM *stream,</div>
<div class="line"><a name="l05984"></a><span class="lineno"> 5984</span>  STREAM_MODE mode, <span class="keywordtype">int</span> channels, </div>
<div class="line"><a name="l05985"></a><span class="lineno"> 5985</span>  <span class="keywordtype">int</span> sampleRate, RTAUDIO_FORMAT format,</div>
<div class="line"><a name="l05986"></a><span class="lineno"> 5986</span>  <span class="keywordtype">int</span> *bufferSize, <span class="keywordtype">int</span> numberOfBuffers)</div>
<div class="line"><a name="l05987"></a><span class="lineno"> 5987</span> {</div>
<div class="line"><a name="l05988"></a><span class="lineno"> 5988</span>  <span class="keywordtype">int</span> result, resource, nBuffers;</div>
<div class="line"><a name="l05989"></a><span class="lineno"> 5989</span>  ALconfig al_config;</div>
<div class="line"><a name="l05990"></a><span class="lineno"> 5990</span>  ALport port;</div>
<div class="line"><a name="l05991"></a><span class="lineno"> 5991</span>  ALpv pvs[2];</div>
<div class="line"><a name="l05992"></a><span class="lineno"> 5992</span> </div>
<div class="line"><a name="l05993"></a><span class="lineno"> 5993</span>  <span class="comment">// Get a new ALconfig structure.</span></div>
<div class="line"><a name="l05994"></a><span class="lineno"> 5994</span>  al_config = alNewConfig();</div>
<div class="line"><a name="l05995"></a><span class="lineno"> 5995</span>  <span class="keywordflow">if</span> ( !al_config ) {</div>
<div class="line"><a name="l05996"></a><span class="lineno"> 5996</span>  sprintf(message,<span class="stringliteral">"RtAudio: can't get AL config: %s."</span>,</div>
<div class="line"><a name="l05997"></a><span class="lineno"> 5997</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l05998"></a><span class="lineno"> 5998</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l05999"></a><span class="lineno"> 5999</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06000"></a><span class="lineno"> 6000</span>  }</div>
<div class="line"><a name="l06001"></a><span class="lineno"> 6001</span> </div>
<div class="line"><a name="l06002"></a><span class="lineno"> 6002</span>  <span class="comment">// Set the channels.</span></div>
<div class="line"><a name="l06003"></a><span class="lineno"> 6003</span>  result = alSetChannels(al_config, channels);</div>
<div class="line"><a name="l06004"></a><span class="lineno"> 6004</span>  <span class="keywordflow">if</span> ( result < 0 ) {</div>
<div class="line"><a name="l06005"></a><span class="lineno"> 6005</span>  sprintf(message,<span class="stringliteral">"RtAudio: can't set %d channels in AL config: %s."</span>,</div>
<div class="line"><a name="l06006"></a><span class="lineno"> 6006</span>  channels, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06007"></a><span class="lineno"> 6007</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06008"></a><span class="lineno"> 6008</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06009"></a><span class="lineno"> 6009</span>  }</div>
<div class="line"><a name="l06010"></a><span class="lineno"> 6010</span> </div>
<div class="line"><a name="l06011"></a><span class="lineno"> 6011</span>  <span class="comment">// Attempt to set the queue size. The al API doesn't provide a</span></div>
<div class="line"><a name="l06012"></a><span class="lineno"> 6012</span>  <span class="comment">// means for querying the minimum/maximum buffer size of a device,</span></div>
<div class="line"><a name="l06013"></a><span class="lineno"> 6013</span>  <span class="comment">// so if the specified size doesn't work, take whatever the</span></div>
<div class="line"><a name="l06014"></a><span class="lineno"> 6014</span>  <span class="comment">// al_config structure returns.</span></div>
<div class="line"><a name="l06015"></a><span class="lineno"> 6015</span>  <span class="keywordflow">if</span> ( numberOfBuffers < 1 )</div>
<div class="line"><a name="l06016"></a><span class="lineno"> 6016</span>  nBuffers = 1;</div>
<div class="line"><a name="l06017"></a><span class="lineno"> 6017</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l06018"></a><span class="lineno"> 6018</span>  nBuffers = numberOfBuffers;</div>
<div class="line"><a name="l06019"></a><span class="lineno"> 6019</span>  <span class="keywordtype">long</span> buffer_size = *bufferSize * nBuffers;</div>
<div class="line"><a name="l06020"></a><span class="lineno"> 6020</span>  result = alSetQueueSize(al_config, buffer_size); <span class="comment">// in sample frames</span></div>
<div class="line"><a name="l06021"></a><span class="lineno"> 6021</span>  <span class="keywordflow">if</span> ( result < 0 ) {</div>
<div class="line"><a name="l06022"></a><span class="lineno"> 6022</span>  <span class="comment">// Get the buffer size specified by the al_config and try that.</span></div>
<div class="line"><a name="l06023"></a><span class="lineno"> 6023</span>  buffer_size = alGetQueueSize(al_config);</div>
<div class="line"><a name="l06024"></a><span class="lineno"> 6024</span>  result = alSetQueueSize(al_config, buffer_size);</div>
<div class="line"><a name="l06025"></a><span class="lineno"> 6025</span>  <span class="keywordflow">if</span> ( result < 0 ) {</div>
<div class="line"><a name="l06026"></a><span class="lineno"> 6026</span>  sprintf(message,<span class="stringliteral">"RtAudio: can't set buffer size (%ld) in AL config: %s."</span>,</div>
<div class="line"><a name="l06027"></a><span class="lineno"> 6027</span>  buffer_size, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06028"></a><span class="lineno"> 6028</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06029"></a><span class="lineno"> 6029</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06030"></a><span class="lineno"> 6030</span>  }</div>
<div class="line"><a name="l06031"></a><span class="lineno"> 6031</span>  *bufferSize = buffer_size / nBuffers;</div>
<div class="line"><a name="l06032"></a><span class="lineno"> 6032</span>  }</div>
<div class="line"><a name="l06033"></a><span class="lineno"> 6033</span> </div>
<div class="line"><a name="l06034"></a><span class="lineno"> 6034</span>  <span class="comment">// Set the data format.</span></div>
<div class="line"><a name="l06035"></a><span class="lineno"> 6035</span>  stream->userFormat = format;</div>
<div class="line"><a name="l06036"></a><span class="lineno"> 6036</span>  stream->deviceFormat[mode] = format;</div>
<div class="line"><a name="l06037"></a><span class="lineno"> 6037</span>  <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>) {</div>
<div class="line"><a name="l06038"></a><span class="lineno"> 6038</span>  result = alSetSampFmt(al_config, AL_SAMPFMT_TWOSCOMP);</div>
<div class="line"><a name="l06039"></a><span class="lineno"> 6039</span>  result = alSetWidth(al_config, AL_SAMPLE_8);</div>
<div class="line"><a name="l06040"></a><span class="lineno"> 6040</span>  }</div>
<div class="line"><a name="l06041"></a><span class="lineno"> 6041</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l06042"></a><span class="lineno"> 6042</span>  result = alSetSampFmt(al_config, AL_SAMPFMT_TWOSCOMP);</div>
<div class="line"><a name="l06043"></a><span class="lineno"> 6043</span>  result = alSetWidth(al_config, AL_SAMPLE_16);</div>
<div class="line"><a name="l06044"></a><span class="lineno"> 6044</span>  }</div>
<div class="line"><a name="l06045"></a><span class="lineno"> 6045</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>) {</div>
<div class="line"><a name="l06046"></a><span class="lineno"> 6046</span>  <span class="comment">// Our 24-bit format assumes the upper 3 bytes of a 4 byte word.</span></div>
<div class="line"><a name="l06047"></a><span class="lineno"> 6047</span>  <span class="comment">// The AL library uses the lower 3 bytes, so we'll need to do our</span></div>
<div class="line"><a name="l06048"></a><span class="lineno"> 6048</span>  <span class="comment">// own conversion.</span></div>
<div class="line"><a name="l06049"></a><span class="lineno"> 6049</span>  result = alSetSampFmt(al_config, AL_SAMPFMT_FLOAT);</div>
<div class="line"><a name="l06050"></a><span class="lineno"> 6050</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>;</div>
<div class="line"><a name="l06051"></a><span class="lineno"> 6051</span>  }</div>
<div class="line"><a name="l06052"></a><span class="lineno"> 6052</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>) {</div>
<div class="line"><a name="l06053"></a><span class="lineno"> 6053</span>  <span class="comment">// The AL library doesn't seem to support the 32-bit integer</span></div>
<div class="line"><a name="l06054"></a><span class="lineno"> 6054</span>  <span class="comment">// format, so we'll need to do our own conversion.</span></div>
<div class="line"><a name="l06055"></a><span class="lineno"> 6055</span>  result = alSetSampFmt(al_config, AL_SAMPFMT_FLOAT);</div>
<div class="line"><a name="l06056"></a><span class="lineno"> 6056</span>  stream->deviceFormat[mode] = <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>;</div>
<div class="line"><a name="l06057"></a><span class="lineno"> 6057</span>  }</div>
<div class="line"><a name="l06058"></a><span class="lineno"> 6058</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>)</div>
<div class="line"><a name="l06059"></a><span class="lineno"> 6059</span>  result = alSetSampFmt(al_config, AL_SAMPFMT_FLOAT);</div>
<div class="line"><a name="l06060"></a><span class="lineno"> 6060</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>)</div>
<div class="line"><a name="l06061"></a><span class="lineno"> 6061</span>  result = alSetSampFmt(al_config, AL_SAMPFMT_DOUBLE);</div>
<div class="line"><a name="l06062"></a><span class="lineno"> 6062</span> </div>
<div class="line"><a name="l06063"></a><span class="lineno"> 6063</span>  <span class="keywordflow">if</span> ( result == -1 ) {</div>
<div class="line"><a name="l06064"></a><span class="lineno"> 6064</span>  sprintf(message,<span class="stringliteral">"RtAudio: AL error setting sample format in AL config: %s."</span>,</div>
<div class="line"><a name="l06065"></a><span class="lineno"> 6065</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l06066"></a><span class="lineno"> 6066</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06067"></a><span class="lineno"> 6067</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06068"></a><span class="lineno"> 6068</span>  }</div>
<div class="line"><a name="l06069"></a><span class="lineno"> 6069</span> </div>
<div class="line"><a name="l06070"></a><span class="lineno"> 6070</span>  <span class="keywordflow">if</span> (mode == OUTPUT) {</div>
<div class="line"><a name="l06071"></a><span class="lineno"> 6071</span> </div>
<div class="line"><a name="l06072"></a><span class="lineno"> 6072</span>  <span class="comment">// Set our device.</span></div>
<div class="line"><a name="l06073"></a><span class="lineno"> 6073</span>  <span class="keywordflow">if</span> (device == 0)</div>
<div class="line"><a name="l06074"></a><span class="lineno"> 6074</span>  resource = AL_DEFAULT_OUTPUT;</div>
<div class="line"><a name="l06075"></a><span class="lineno"> 6075</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l06076"></a><span class="lineno"> 6076</span>  resource = devices[device].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#ae0ba0362e0084e4cdd2f96ee91260309">id</a>[0];</div>
<div class="line"><a name="l06077"></a><span class="lineno"> 6077</span>  result = alSetDevice(al_config, resource);</div>
<div class="line"><a name="l06078"></a><span class="lineno"> 6078</span>  <span class="keywordflow">if</span> ( result == -1 ) {</div>
<div class="line"><a name="l06079"></a><span class="lineno"> 6079</span>  sprintf(message,<span class="stringliteral">"RtAudio: AL error setting device (%s) in AL config: %s."</span>,</div>
<div class="line"><a name="l06080"></a><span class="lineno"> 6080</span>  devices[device].name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06081"></a><span class="lineno"> 6081</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06082"></a><span class="lineno"> 6082</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06083"></a><span class="lineno"> 6083</span>  }</div>
<div class="line"><a name="l06084"></a><span class="lineno"> 6084</span> </div>
<div class="line"><a name="l06085"></a><span class="lineno"> 6085</span>  <span class="comment">// Open the port.</span></div>
<div class="line"><a name="l06086"></a><span class="lineno"> 6086</span>  port = alOpenPort(<span class="stringliteral">"RtAudio Output Port"</span>, <span class="stringliteral">"w"</span>, al_config);</div>
<div class="line"><a name="l06087"></a><span class="lineno"> 6087</span>  <span class="keywordflow">if</span>( !port ) {</div>
<div class="line"><a name="l06088"></a><span class="lineno"> 6088</span>  sprintf(message,<span class="stringliteral">"RtAudio: AL error opening output port: %s."</span>,</div>
<div class="line"><a name="l06089"></a><span class="lineno"> 6089</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l06090"></a><span class="lineno"> 6090</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06091"></a><span class="lineno"> 6091</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06092"></a><span class="lineno"> 6092</span>  }</div>
<div class="line"><a name="l06093"></a><span class="lineno"> 6093</span> </div>
<div class="line"><a name="l06094"></a><span class="lineno"> 6094</span>  <span class="comment">// Set the sample rate</span></div>
<div class="line"><a name="l06095"></a><span class="lineno"> 6095</span>  pvs[0].param = AL_MASTER_CLOCK;</div>
<div class="line"><a name="l06096"></a><span class="lineno"> 6096</span>  pvs[0].value.i = AL_CRYSTAL_MCLK_TYPE;</div>
<div class="line"><a name="l06097"></a><span class="lineno"> 6097</span>  pvs[1].param = AL_RATE;</div>
<div class="line"><a name="l06098"></a><span class="lineno"> 6098</span>  pvs[1].value.ll = alDoubleToFixed((<span class="keywordtype">double</span>)sampleRate);</div>
<div class="line"><a name="l06099"></a><span class="lineno"> 6099</span>  result = alSetParams(resource, pvs, 2);</div>
<div class="line"><a name="l06100"></a><span class="lineno"> 6100</span>  <span class="keywordflow">if</span> ( result < 0 ) {</div>
<div class="line"><a name="l06101"></a><span class="lineno"> 6101</span>  alClosePort(port);</div>
<div class="line"><a name="l06102"></a><span class="lineno"> 6102</span>  sprintf(message,<span class="stringliteral">"RtAudio: AL error setting sample rate (%d) for device (%s): %s."</span>,</div>
<div class="line"><a name="l06103"></a><span class="lineno"> 6103</span>  sampleRate, devices[device].name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06104"></a><span class="lineno"> 6104</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06105"></a><span class="lineno"> 6105</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06106"></a><span class="lineno"> 6106</span>  }</div>
<div class="line"><a name="l06107"></a><span class="lineno"> 6107</span>  }</div>
<div class="line"><a name="l06108"></a><span class="lineno"> 6108</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l06109"></a><span class="lineno"> 6109</span> </div>
<div class="line"><a name="l06110"></a><span class="lineno"> 6110</span>  <span class="comment">// Set our device.</span></div>
<div class="line"><a name="l06111"></a><span class="lineno"> 6111</span>  <span class="keywordflow">if</span> (device == 0)</div>
<div class="line"><a name="l06112"></a><span class="lineno"> 6112</span>  resource = AL_DEFAULT_INPUT;</div>
<div class="line"><a name="l06113"></a><span class="lineno"> 6113</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l06114"></a><span class="lineno"> 6114</span>  resource = devices[device].<a class="code" href="structRtAudio_1_1RTAUDIO__DEVICE.html#ae0ba0362e0084e4cdd2f96ee91260309">id</a>[1];</div>
<div class="line"><a name="l06115"></a><span class="lineno"> 6115</span>  result = alSetDevice(al_config, resource);</div>
<div class="line"><a name="l06116"></a><span class="lineno"> 6116</span>  <span class="keywordflow">if</span> ( result == -1 ) {</div>
<div class="line"><a name="l06117"></a><span class="lineno"> 6117</span>  sprintf(message,<span class="stringliteral">"RtAudio: AL error setting device (%s) in AL config: %s."</span>,</div>
<div class="line"><a name="l06118"></a><span class="lineno"> 6118</span>  devices[device].name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06119"></a><span class="lineno"> 6119</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06120"></a><span class="lineno"> 6120</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06121"></a><span class="lineno"> 6121</span>  }</div>
<div class="line"><a name="l06122"></a><span class="lineno"> 6122</span> </div>
<div class="line"><a name="l06123"></a><span class="lineno"> 6123</span>  <span class="comment">// Open the port.</span></div>
<div class="line"><a name="l06124"></a><span class="lineno"> 6124</span>  port = alOpenPort(<span class="stringliteral">"RtAudio Output Port"</span>, <span class="stringliteral">"r"</span>, al_config);</div>
<div class="line"><a name="l06125"></a><span class="lineno"> 6125</span>  <span class="keywordflow">if</span>( !port ) {</div>
<div class="line"><a name="l06126"></a><span class="lineno"> 6126</span>  sprintf(message,<span class="stringliteral">"RtAudio: AL error opening input port: %s."</span>,</div>
<div class="line"><a name="l06127"></a><span class="lineno"> 6127</span>  alGetErrorString(oserror()));</div>
<div class="line"><a name="l06128"></a><span class="lineno"> 6128</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06129"></a><span class="lineno"> 6129</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06130"></a><span class="lineno"> 6130</span>  }</div>
<div class="line"><a name="l06131"></a><span class="lineno"> 6131</span> </div>
<div class="line"><a name="l06132"></a><span class="lineno"> 6132</span>  <span class="comment">// Set the sample rate</span></div>
<div class="line"><a name="l06133"></a><span class="lineno"> 6133</span>  pvs[0].param = AL_MASTER_CLOCK;</div>
<div class="line"><a name="l06134"></a><span class="lineno"> 6134</span>  pvs[0].value.i = AL_CRYSTAL_MCLK_TYPE;</div>
<div class="line"><a name="l06135"></a><span class="lineno"> 6135</span>  pvs[1].param = AL_RATE;</div>
<div class="line"><a name="l06136"></a><span class="lineno"> 6136</span>  pvs[1].value.ll = alDoubleToFixed((<span class="keywordtype">double</span>)sampleRate);</div>
<div class="line"><a name="l06137"></a><span class="lineno"> 6137</span>  result = alSetParams(resource, pvs, 2);</div>
<div class="line"><a name="l06138"></a><span class="lineno"> 6138</span>  <span class="keywordflow">if</span> ( result < 0 ) {</div>
<div class="line"><a name="l06139"></a><span class="lineno"> 6139</span>  alClosePort(port);</div>
<div class="line"><a name="l06140"></a><span class="lineno"> 6140</span>  sprintf(message,<span class="stringliteral">"RtAudio: AL error setting sample rate (%d) for device (%s): %s."</span>,</div>
<div class="line"><a name="l06141"></a><span class="lineno"> 6141</span>  sampleRate, devices[device].name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06142"></a><span class="lineno"> 6142</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06143"></a><span class="lineno"> 6143</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06144"></a><span class="lineno"> 6144</span>  }</div>
<div class="line"><a name="l06145"></a><span class="lineno"> 6145</span>  }</div>
<div class="line"><a name="l06146"></a><span class="lineno"> 6146</span> </div>
<div class="line"><a name="l06147"></a><span class="lineno"> 6147</span>  alFreeConfig(al_config);</div>
<div class="line"><a name="l06148"></a><span class="lineno"> 6148</span> </div>
<div class="line"><a name="l06149"></a><span class="lineno"> 6149</span>  stream->nUserChannels[mode] = channels;</div>
<div class="line"><a name="l06150"></a><span class="lineno"> 6150</span>  stream->nDeviceChannels[mode] = channels;</div>
<div class="line"><a name="l06151"></a><span class="lineno"> 6151</span> </div>
<div class="line"><a name="l06152"></a><span class="lineno"> 6152</span>  <span class="comment">// Set handle and flags for buffer conversion</span></div>
<div class="line"><a name="l06153"></a><span class="lineno"> 6153</span>  stream->handle[mode] = port;</div>
<div class="line"><a name="l06154"></a><span class="lineno"> 6154</span>  stream->doConvertBuffer[mode] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l06155"></a><span class="lineno"> 6155</span>  <span class="keywordflow">if</span> (stream->userFormat != stream->deviceFormat[mode])</div>
<div class="line"><a name="l06156"></a><span class="lineno"> 6156</span>  stream->doConvertBuffer[mode] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l06157"></a><span class="lineno"> 6157</span> </div>
<div class="line"><a name="l06158"></a><span class="lineno"> 6158</span>  <span class="comment">// Allocate necessary internal buffers</span></div>
<div class="line"><a name="l06159"></a><span class="lineno"> 6159</span>  <span class="keywordflow">if</span> ( stream->nUserChannels[0] != stream->nUserChannels[1] ) {</div>
<div class="line"><a name="l06160"></a><span class="lineno"> 6160</span> </div>
<div class="line"><a name="l06161"></a><span class="lineno"> 6161</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l06162"></a><span class="lineno"> 6162</span>  <span class="keywordflow">if</span> (stream->nUserChannels[0] >= stream->nUserChannels[1])</div>
<div class="line"><a name="l06163"></a><span class="lineno"> 6163</span>  buffer_bytes = stream->nUserChannels[0];</div>
<div class="line"><a name="l06164"></a><span class="lineno"> 6164</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l06165"></a><span class="lineno"> 6165</span>  buffer_bytes = stream->nUserChannels[1];</div>
<div class="line"><a name="l06166"></a><span class="lineno"> 6166</span> </div>
<div class="line"><a name="l06167"></a><span class="lineno"> 6167</span>  buffer_bytes *= *bufferSize * formatBytes(stream->userFormat);</div>
<div class="line"><a name="l06168"></a><span class="lineno"> 6168</span>  <span class="keywordflow">if</span> (stream->userBuffer) free(stream->userBuffer);</div>
<div class="line"><a name="l06169"></a><span class="lineno"> 6169</span>  stream->userBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l06170"></a><span class="lineno"> 6170</span>  <span class="keywordflow">if</span> (stream->userBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l06171"></a><span class="lineno"> 6171</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l06172"></a><span class="lineno"> 6172</span>  }</div>
<div class="line"><a name="l06173"></a><span class="lineno"> 6173</span> </div>
<div class="line"><a name="l06174"></a><span class="lineno"> 6174</span>  <span class="keywordflow">if</span> ( stream->doConvertBuffer[mode] ) {</div>
<div class="line"><a name="l06175"></a><span class="lineno"> 6175</span> </div>
<div class="line"><a name="l06176"></a><span class="lineno"> 6176</span>  <span class="keywordtype">long</span> buffer_bytes;</div>
<div class="line"><a name="l06177"></a><span class="lineno"> 6177</span>  <span class="keywordtype">bool</span> makeBuffer = <span class="keyword">true</span>;</div>
<div class="line"><a name="l06178"></a><span class="lineno"> 6178</span>  <span class="keywordflow">if</span> ( mode == OUTPUT )</div>
<div class="line"><a name="l06179"></a><span class="lineno"> 6179</span>  buffer_bytes = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l06180"></a><span class="lineno"> 6180</span>  <span class="keywordflow">else</span> { <span class="comment">// mode == INPUT</span></div>
<div class="line"><a name="l06181"></a><span class="lineno"> 6181</span>  buffer_bytes = stream->nDeviceChannels[1] * formatBytes(stream->deviceFormat[1]);</div>
<div class="line"><a name="l06182"></a><span class="lineno"> 6182</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && stream->deviceBuffer ) {</div>
<div class="line"><a name="l06183"></a><span class="lineno"> 6183</span>  <span class="keywordtype">long</span> bytes_out = stream->nDeviceChannels[0] * formatBytes(stream->deviceFormat[0]);</div>
<div class="line"><a name="l06184"></a><span class="lineno"> 6184</span>  <span class="keywordflow">if</span> ( buffer_bytes < bytes_out ) makeBuffer = <span class="keyword">false</span>;</div>
<div class="line"><a name="l06185"></a><span class="lineno"> 6185</span>  }</div>
<div class="line"><a name="l06186"></a><span class="lineno"> 6186</span>  }</div>
<div class="line"><a name="l06187"></a><span class="lineno"> 6187</span> </div>
<div class="line"><a name="l06188"></a><span class="lineno"> 6188</span>  <span class="keywordflow">if</span> ( makeBuffer ) {</div>
<div class="line"><a name="l06189"></a><span class="lineno"> 6189</span>  buffer_bytes *= *bufferSize;</div>
<div class="line"><a name="l06190"></a><span class="lineno"> 6190</span>  <span class="keywordflow">if</span> (stream->deviceBuffer) free(stream->deviceBuffer);</div>
<div class="line"><a name="l06191"></a><span class="lineno"> 6191</span>  stream->deviceBuffer = (<span class="keywordtype">char</span> *) calloc(buffer_bytes, 1);</div>
<div class="line"><a name="l06192"></a><span class="lineno"> 6192</span>  <span class="keywordflow">if</span> (stream->deviceBuffer == <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div>
<div class="line"><a name="l06193"></a><span class="lineno"> 6193</span>  <span class="keywordflow">goto</span> memory_error;</div>
<div class="line"><a name="l06194"></a><span class="lineno"> 6194</span>  }</div>
<div class="line"><a name="l06195"></a><span class="lineno"> 6195</span>  }</div>
<div class="line"><a name="l06196"></a><span class="lineno"> 6196</span> </div>
<div class="line"><a name="l06197"></a><span class="lineno"> 6197</span>  stream->device[mode] = device;</div>
<div class="line"><a name="l06198"></a><span class="lineno"> 6198</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l06199"></a><span class="lineno"> 6199</span>  <span class="keywordflow">if</span> ( stream->mode == OUTPUT && mode == INPUT )</div>
<div class="line"><a name="l06200"></a><span class="lineno"> 6200</span>  <span class="comment">// We had already set up an output stream.</span></div>
<div class="line"><a name="l06201"></a><span class="lineno"> 6201</span>  stream->mode = DUPLEX;</div>
<div class="line"><a name="l06202"></a><span class="lineno"> 6202</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l06203"></a><span class="lineno"> 6203</span>  stream->mode = mode;</div>
<div class="line"><a name="l06204"></a><span class="lineno"> 6204</span>  stream->nBuffers = nBuffers;</div>
<div class="line"><a name="l06205"></a><span class="lineno"> 6205</span>  stream->bufferSize = *bufferSize;</div>
<div class="line"><a name="l06206"></a><span class="lineno"> 6206</span>  stream->sampleRate = sampleRate;</div>
<div class="line"><a name="l06207"></a><span class="lineno"> 6207</span> </div>
<div class="line"><a name="l06208"></a><span class="lineno"> 6208</span>  <span class="keywordflow">return</span> SUCCESS;</div>
<div class="line"><a name="l06209"></a><span class="lineno"> 6209</span> </div>
<div class="line"><a name="l06210"></a><span class="lineno"> 6210</span>  memory_error:</div>
<div class="line"><a name="l06211"></a><span class="lineno"> 6211</span>  <span class="keywordflow">if</span> (stream->handle[0]) {</div>
<div class="line"><a name="l06212"></a><span class="lineno"> 6212</span>  alClosePort(stream->handle[0]);</div>
<div class="line"><a name="l06213"></a><span class="lineno"> 6213</span>  stream->handle[0] = 0;</div>
<div class="line"><a name="l06214"></a><span class="lineno"> 6214</span>  }</div>
<div class="line"><a name="l06215"></a><span class="lineno"> 6215</span>  <span class="keywordflow">if</span> (stream->handle[1]) {</div>
<div class="line"><a name="l06216"></a><span class="lineno"> 6216</span>  alClosePort(stream->handle[1]);</div>
<div class="line"><a name="l06217"></a><span class="lineno"> 6217</span>  stream->handle[1] = 0;</div>
<div class="line"><a name="l06218"></a><span class="lineno"> 6218</span>  }</div>
<div class="line"><a name="l06219"></a><span class="lineno"> 6219</span>  <span class="keywordflow">if</span> (stream->userBuffer) {</div>
<div class="line"><a name="l06220"></a><span class="lineno"> 6220</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l06221"></a><span class="lineno"> 6221</span>  stream->userBuffer = 0;</div>
<div class="line"><a name="l06222"></a><span class="lineno"> 6222</span>  }</div>
<div class="line"><a name="l06223"></a><span class="lineno"> 6223</span>  sprintf(message, <span class="stringliteral">"RtAudio: ALSA error allocating buffer memory for device (%s)."</span>,</div>
<div class="line"><a name="l06224"></a><span class="lineno"> 6224</span>  devices[device].name);</div>
<div class="line"><a name="l06225"></a><span class="lineno"> 6225</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06226"></a><span class="lineno"> 6226</span>  <span class="keywordflow">return</span> FAILURE;</div>
<div class="line"><a name="l06227"></a><span class="lineno"> 6227</span> }</div>
<div class="line"><a name="l06228"></a><span class="lineno"> 6228</span> </div>
<div class="line"><a name="l06229"></a><span class="lineno"> 6229</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a9b25382cabd65d739f2718f8647f1066" title="Public method which closes a stream and frees any associated buffers.">RtAudio :: closeStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l06230"></a><span class="lineno"> 6230</span> {</div>
<div class="line"><a name="l06231"></a><span class="lineno"> 6231</span>  <span class="comment">// We don't want an exception to be thrown here because this</span></div>
<div class="line"><a name="l06232"></a><span class="lineno"> 6232</span>  <span class="comment">// function is called by our class destructor. So, do our own</span></div>
<div class="line"><a name="l06233"></a><span class="lineno"> 6233</span>  <span class="comment">// streamId check.</span></div>
<div class="line"><a name="l06234"></a><span class="lineno"> 6234</span>  <span class="keywordflow">if</span> ( streams.find( streamId ) == streams.end() ) {</div>
<div class="line"><a name="l06235"></a><span class="lineno"> 6235</span>  sprintf(message, <span class="stringliteral">"RtAudio: invalid stream identifier!"</span>);</div>
<div class="line"><a name="l06236"></a><span class="lineno"> 6236</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06237"></a><span class="lineno"> 6237</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l06238"></a><span class="lineno"> 6238</span>  }</div>
<div class="line"><a name="l06239"></a><span class="lineno"> 6239</span> </div>
<div class="line"><a name="l06240"></a><span class="lineno"> 6240</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) streams[streamId];</div>
<div class="line"><a name="l06241"></a><span class="lineno"> 6241</span> </div>
<div class="line"><a name="l06242"></a><span class="lineno"> 6242</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l06243"></a><span class="lineno"> 6243</span>  pthread_cancel(stream->callbackInfo.thread);</div>
<div class="line"><a name="l06244"></a><span class="lineno"> 6244</span>  pthread_join(stream->callbackInfo.thread, <a class="code" href="OSDefines_8hxx.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l06245"></a><span class="lineno"> 6245</span>  }</div>
<div class="line"><a name="l06246"></a><span class="lineno"> 6246</span> </div>
<div class="line"><a name="l06247"></a><span class="lineno"> 6247</span>  pthread_mutex_destroy(&stream->mutex);</div>
<div class="line"><a name="l06248"></a><span class="lineno"> 6248</span> </div>
<div class="line"><a name="l06249"></a><span class="lineno"> 6249</span>  <span class="keywordflow">if</span> (stream->handle[0])</div>
<div class="line"><a name="l06250"></a><span class="lineno"> 6250</span>  alClosePort(stream->handle[0]);</div>
<div class="line"><a name="l06251"></a><span class="lineno"> 6251</span> </div>
<div class="line"><a name="l06252"></a><span class="lineno"> 6252</span>  <span class="keywordflow">if</span> (stream->handle[1])</div>
<div class="line"><a name="l06253"></a><span class="lineno"> 6253</span>  alClosePort(stream->handle[1]);</div>
<div class="line"><a name="l06254"></a><span class="lineno"> 6254</span> </div>
<div class="line"><a name="l06255"></a><span class="lineno"> 6255</span>  <span class="keywordflow">if</span> (stream->userBuffer)</div>
<div class="line"><a name="l06256"></a><span class="lineno"> 6256</span>  free(stream->userBuffer);</div>
<div class="line"><a name="l06257"></a><span class="lineno"> 6257</span> </div>
<div class="line"><a name="l06258"></a><span class="lineno"> 6258</span>  <span class="keywordflow">if</span> (stream->deviceBuffer)</div>
<div class="line"><a name="l06259"></a><span class="lineno"> 6259</span>  free(stream->deviceBuffer);</div>
<div class="line"><a name="l06260"></a><span class="lineno"> 6260</span> </div>
<div class="line"><a name="l06261"></a><span class="lineno"> 6261</span>  free(stream);</div>
<div class="line"><a name="l06262"></a><span class="lineno"> 6262</span>  streams.erase(streamId);</div>
<div class="line"><a name="l06263"></a><span class="lineno"> 6263</span> }</div>
<div class="line"><a name="l06264"></a><span class="lineno"> 6264</span> </div>
<div class="line"><a name="l06265"></a><span class="lineno"> 6265</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a304d9fc57cee6539bb1d98b82b10508f" title="Public method which starts a stream.">RtAudio :: startStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l06266"></a><span class="lineno"> 6266</span> {</div>
<div class="line"><a name="l06267"></a><span class="lineno"> 6267</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l06268"></a><span class="lineno"> 6268</span> </div>
<div class="line"><a name="l06269"></a><span class="lineno"> 6269</span>  <span class="keywordflow">if</span> (stream->state == STREAM_RUNNING)</div>
<div class="line"><a name="l06270"></a><span class="lineno"> 6270</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l06271"></a><span class="lineno"> 6271</span> </div>
<div class="line"><a name="l06272"></a><span class="lineno"> 6272</span>  <span class="comment">// The AL port is ready as soon as it is opened.</span></div>
<div class="line"><a name="l06273"></a><span class="lineno"> 6273</span>  stream->state = STREAM_RUNNING;</div>
<div class="line"><a name="l06274"></a><span class="lineno"> 6274</span> }</div>
<div class="line"><a name="l06275"></a><span class="lineno"> 6275</span> </div>
<div class="line"><a name="l06276"></a><span class="lineno"> 6276</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">RtAudio :: stopStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l06277"></a><span class="lineno"> 6277</span> {</div>
<div class="line"><a name="l06278"></a><span class="lineno"> 6278</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l06279"></a><span class="lineno"> 6279</span> </div>
<div class="line"><a name="l06280"></a><span class="lineno"> 6280</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l06281"></a><span class="lineno"> 6281</span> </div>
<div class="line"><a name="l06282"></a><span class="lineno"> 6282</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l06283"></a><span class="lineno"> 6283</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l06284"></a><span class="lineno"> 6284</span> </div>
<div class="line"><a name="l06285"></a><span class="lineno"> 6285</span>  <span class="keywordtype">int</span> result;</div>
<div class="line"><a name="l06286"></a><span class="lineno"> 6286</span>  <span class="keywordtype">int</span> buffer_size = stream->bufferSize * stream->nBuffers;</div>
<div class="line"><a name="l06287"></a><span class="lineno"> 6287</span> </div>
<div class="line"><a name="l06288"></a><span class="lineno"> 6288</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX)</div>
<div class="line"><a name="l06289"></a><span class="lineno"> 6289</span>  alZeroFrames(stream->handle[0], buffer_size);</div>
<div class="line"><a name="l06290"></a><span class="lineno"> 6290</span> </div>
<div class="line"><a name="l06291"></a><span class="lineno"> 6291</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l06292"></a><span class="lineno"> 6292</span>  result = alDiscardFrames(stream->handle[1], buffer_size);</div>
<div class="line"><a name="l06293"></a><span class="lineno"> 6293</span>  <span class="keywordflow">if</span> (result == -1) {</div>
<div class="line"><a name="l06294"></a><span class="lineno"> 6294</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error draining stream device (%s): %s."</span>,</div>
<div class="line"><a name="l06295"></a><span class="lineno"> 6295</span>  devices[stream->device[1]].name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06296"></a><span class="lineno"> 6296</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l06297"></a><span class="lineno"> 6297</span>  }</div>
<div class="line"><a name="l06298"></a><span class="lineno"> 6298</span>  }</div>
<div class="line"><a name="l06299"></a><span class="lineno"> 6299</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l06300"></a><span class="lineno"> 6300</span> </div>
<div class="line"><a name="l06301"></a><span class="lineno"> 6301</span>  unlock:</div>
<div class="line"><a name="l06302"></a><span class="lineno"> 6302</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l06303"></a><span class="lineno"> 6303</span> }</div>
<div class="line"><a name="l06304"></a><span class="lineno"> 6304</span> </div>
<div class="line"><a name="l06305"></a><span class="lineno"> 6305</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a72335b2cf99913c017886ce5a818e6a3" title="Stop a stream, discarding any samples remaining in the input/output queue.">RtAudio :: abortStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l06306"></a><span class="lineno"> 6306</span> {</div>
<div class="line"><a name="l06307"></a><span class="lineno"> 6307</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l06308"></a><span class="lineno"> 6308</span> </div>
<div class="line"><a name="l06309"></a><span class="lineno"> 6309</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l06310"></a><span class="lineno"> 6310</span> </div>
<div class="line"><a name="l06311"></a><span class="lineno"> 6311</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l06312"></a><span class="lineno"> 6312</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l06313"></a><span class="lineno"> 6313</span> </div>
<div class="line"><a name="l06314"></a><span class="lineno"> 6314</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l06315"></a><span class="lineno"> 6315</span> </div>
<div class="line"><a name="l06316"></a><span class="lineno"> 6316</span>  <span class="keywordtype">int</span> buffer_size = stream->bufferSize * stream->nBuffers;</div>
<div class="line"><a name="l06317"></a><span class="lineno"> 6317</span>  <span class="keywordtype">int</span> result = alDiscardFrames(stream->handle[0], buffer_size);</div>
<div class="line"><a name="l06318"></a><span class="lineno"> 6318</span>  <span class="keywordflow">if</span> (result == -1) {</div>
<div class="line"><a name="l06319"></a><span class="lineno"> 6319</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error aborting stream device (%s): %s."</span>,</div>
<div class="line"><a name="l06320"></a><span class="lineno"> 6320</span>  devices[stream->device[0]].name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06321"></a><span class="lineno"> 6321</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l06322"></a><span class="lineno"> 6322</span>  }</div>
<div class="line"><a name="l06323"></a><span class="lineno"> 6323</span>  }</div>
<div class="line"><a name="l06324"></a><span class="lineno"> 6324</span> </div>
<div class="line"><a name="l06325"></a><span class="lineno"> 6325</span>  <span class="comment">// There is no clear action to take on the input stream, since the</span></div>
<div class="line"><a name="l06326"></a><span class="lineno"> 6326</span>  <span class="comment">// port will continue to run in any event.</span></div>
<div class="line"><a name="l06327"></a><span class="lineno"> 6327</span>  stream->state = STREAM_STOPPED;</div>
<div class="line"><a name="l06328"></a><span class="lineno"> 6328</span> </div>
<div class="line"><a name="l06329"></a><span class="lineno"> 6329</span>  unlock:</div>
<div class="line"><a name="l06330"></a><span class="lineno"> 6330</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l06331"></a><span class="lineno"> 6331</span> }</div>
<div class="line"><a name="l06332"></a><span class="lineno"> 6332</span> </div>
<div class="line"><a name="l06333"></a><span class="lineno"> 6333</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#ab7e0a7652c1c90c0463ccbff3b794f2f" title="Queries a stream to determine whether a call to the tickStream() method will block.">RtAudio :: streamWillBlock</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l06334"></a><span class="lineno"> 6334</span> {</div>
<div class="line"><a name="l06335"></a><span class="lineno"> 6335</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l06336"></a><span class="lineno"> 6336</span> </div>
<div class="line"><a name="l06337"></a><span class="lineno"> 6337</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l06338"></a><span class="lineno"> 6338</span> </div>
<div class="line"><a name="l06339"></a><span class="lineno"> 6339</span>  <span class="keywordtype">int</span> frames = 0;</div>
<div class="line"><a name="l06340"></a><span class="lineno"> 6340</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l06341"></a><span class="lineno"> 6341</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l06342"></a><span class="lineno"> 6342</span> </div>
<div class="line"><a name="l06343"></a><span class="lineno"> 6343</span>  <span class="keywordtype">int</span> err = 0;</div>
<div class="line"><a name="l06344"></a><span class="lineno"> 6344</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l06345"></a><span class="lineno"> 6345</span>  err = alGetFillable(stream->handle[0]);</div>
<div class="line"><a name="l06346"></a><span class="lineno"> 6346</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l06347"></a><span class="lineno"> 6347</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting available frames for stream (%s): %s."</span>,</div>
<div class="line"><a name="l06348"></a><span class="lineno"> 6348</span>  devices[stream->device[0]].name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06349"></a><span class="lineno"> 6349</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l06350"></a><span class="lineno"> 6350</span>  }</div>
<div class="line"><a name="l06351"></a><span class="lineno"> 6351</span>  }</div>
<div class="line"><a name="l06352"></a><span class="lineno"> 6352</span> </div>
<div class="line"><a name="l06353"></a><span class="lineno"> 6353</span>  frames = err;</div>
<div class="line"><a name="l06354"></a><span class="lineno"> 6354</span> </div>
<div class="line"><a name="l06355"></a><span class="lineno"> 6355</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l06356"></a><span class="lineno"> 6356</span>  err = alGetFilled(stream->handle[1]);</div>
<div class="line"><a name="l06357"></a><span class="lineno"> 6357</span>  <span class="keywordflow">if</span> (err < 0) {</div>
<div class="line"><a name="l06358"></a><span class="lineno"> 6358</span>  sprintf(message, <span class="stringliteral">"RtAudio: AL error getting available frames for stream (%s): %s."</span>,</div>
<div class="line"><a name="l06359"></a><span class="lineno"> 6359</span>  devices[stream->device[1]].name, alGetErrorString(oserror()));</div>
<div class="line"><a name="l06360"></a><span class="lineno"> 6360</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a995e97ecf6beeedaba525022a63aec6b">RtError::DRIVER_ERROR</a>);</div>
<div class="line"><a name="l06361"></a><span class="lineno"> 6361</span>  }</div>
<div class="line"><a name="l06362"></a><span class="lineno"> 6362</span>  <span class="keywordflow">if</span> (frames > err) frames = err;</div>
<div class="line"><a name="l06363"></a><span class="lineno"> 6363</span>  }</div>
<div class="line"><a name="l06364"></a><span class="lineno"> 6364</span> </div>
<div class="line"><a name="l06365"></a><span class="lineno"> 6365</span>  frames = stream->bufferSize - frames;</div>
<div class="line"><a name="l06366"></a><span class="lineno"> 6366</span>  <span class="keywordflow">if</span> (frames < 0) frames = 0;</div>
<div class="line"><a name="l06367"></a><span class="lineno"> 6367</span> </div>
<div class="line"><a name="l06368"></a><span class="lineno"> 6368</span>  unlock:</div>
<div class="line"><a name="l06369"></a><span class="lineno"> 6369</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l06370"></a><span class="lineno"> 6370</span>  <span class="keywordflow">return</span> frames;</div>
<div class="line"><a name="l06371"></a><span class="lineno"> 6371</span> }</div>
<div class="line"><a name="l06372"></a><span class="lineno"> 6372</span> </div>
<div class="line"><a name="l06373"></a><span class="lineno"> 6373</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a2ba2bb7bf1995b0d754ec96b10bda324" title="Public method used to trigger processing of input/output data for a stream.">RtAudio :: tickStream</a>(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l06374"></a><span class="lineno"> 6374</span> {</div>
<div class="line"><a name="l06375"></a><span class="lineno"> 6375</span>  RTAUDIO_STREAM *stream = (RTAUDIO_STREAM *) verifyStream(streamId);</div>
<div class="line"><a name="l06376"></a><span class="lineno"> 6376</span> </div>
<div class="line"><a name="l06377"></a><span class="lineno"> 6377</span>  <span class="keywordtype">int</span> stopStream = 0;</div>
<div class="line"><a name="l06378"></a><span class="lineno"> 6378</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED) {</div>
<div class="line"><a name="l06379"></a><span class="lineno"> 6379</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) usleep(50000); <span class="comment">// sleep 50 milliseconds</span></div>
<div class="line"><a name="l06380"></a><span class="lineno"> 6380</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l06381"></a><span class="lineno"> 6381</span>  }</div>
<div class="line"><a name="l06382"></a><span class="lineno"> 6382</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback) {</div>
<div class="line"><a name="l06383"></a><span class="lineno"> 6383</span>  <a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a> callback = (<a class="code" href="classRtAudio.html#a96e453fa73ef49f2902f4c5a23c3ea9d">RTAUDIO_CALLBACK</a>) stream->callbackInfo.callback;</div>
<div class="line"><a name="l06384"></a><span class="lineno"> 6384</span>  stopStream = callback(stream->userBuffer, stream->bufferSize, stream->callbackInfo.userData);</div>
<div class="line"><a name="l06385"></a><span class="lineno"> 6385</span>  }</div>
<div class="line"><a name="l06386"></a><span class="lineno"> 6386</span> </div>
<div class="line"><a name="l06387"></a><span class="lineno"> 6387</span>  <a class="code" href="RtAudio_8cxx.html#a742343b87ed8c18a6867528931894157">MUTEX_LOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l06388"></a><span class="lineno"> 6388</span> </div>
<div class="line"><a name="l06389"></a><span class="lineno"> 6389</span>  <span class="comment">// The state might change while waiting on a mutex.</span></div>
<div class="line"><a name="l06390"></a><span class="lineno"> 6390</span>  <span class="keywordflow">if</span> (stream->state == STREAM_STOPPED)</div>
<div class="line"><a name="l06391"></a><span class="lineno"> 6391</span>  <span class="keywordflow">goto</span> unlock;</div>
<div class="line"><a name="l06392"></a><span class="lineno"> 6392</span> </div>
<div class="line"><a name="l06393"></a><span class="lineno"> 6393</span>  <span class="keywordtype">char</span> *buffer;</div>
<div class="line"><a name="l06394"></a><span class="lineno"> 6394</span>  <span class="keywordtype">int</span> channels;</div>
<div class="line"><a name="l06395"></a><span class="lineno"> 6395</span>  <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RTAUDIO_FORMAT</a> format;</div>
<div class="line"><a name="l06396"></a><span class="lineno"> 6396</span>  <span class="keywordflow">if</span> (stream->mode == OUTPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l06397"></a><span class="lineno"> 6397</span> </div>
<div class="line"><a name="l06398"></a><span class="lineno"> 6398</span>  <span class="comment">// Setup parameters and do buffer conversion if necessary.</span></div>
<div class="line"><a name="l06399"></a><span class="lineno"> 6399</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[0]) {</div>
<div class="line"><a name="l06400"></a><span class="lineno"> 6400</span>  convertStreamBuffer(stream, OUTPUT);</div>
<div class="line"><a name="l06401"></a><span class="lineno"> 6401</span>  buffer = stream->deviceBuffer;</div>
<div class="line"><a name="l06402"></a><span class="lineno"> 6402</span>  channels = stream->nDeviceChannels[0];</div>
<div class="line"><a name="l06403"></a><span class="lineno"> 6403</span>  format = stream->deviceFormat[0];</div>
<div class="line"><a name="l06404"></a><span class="lineno"> 6404</span>  }</div>
<div class="line"><a name="l06405"></a><span class="lineno"> 6405</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l06406"></a><span class="lineno"> 6406</span>  buffer = stream->userBuffer;</div>
<div class="line"><a name="l06407"></a><span class="lineno"> 6407</span>  channels = stream->nUserChannels[0];</div>
<div class="line"><a name="l06408"></a><span class="lineno"> 6408</span>  format = stream->userFormat;</div>
<div class="line"><a name="l06409"></a><span class="lineno"> 6409</span>  }</div>
<div class="line"><a name="l06410"></a><span class="lineno"> 6410</span> </div>
<div class="line"><a name="l06411"></a><span class="lineno"> 6411</span>  <span class="comment">// Do byte swapping if necessary.</span></div>
<div class="line"><a name="l06412"></a><span class="lineno"> 6412</span>  <span class="keywordflow">if</span> (stream->doByteSwap[0])</div>
<div class="line"><a name="l06413"></a><span class="lineno"> 6413</span>  byteSwapBuffer(buffer, stream->bufferSize * channels, format);</div>
<div class="line"><a name="l06414"></a><span class="lineno"> 6414</span> </div>
<div class="line"><a name="l06415"></a><span class="lineno"> 6415</span>  <span class="comment">// Write interleaved samples to device.</span></div>
<div class="line"><a name="l06416"></a><span class="lineno"> 6416</span>  alWriteFrames(stream->handle[0], buffer, stream->bufferSize);</div>
<div class="line"><a name="l06417"></a><span class="lineno"> 6417</span>  }</div>
<div class="line"><a name="l06418"></a><span class="lineno"> 6418</span> </div>
<div class="line"><a name="l06419"></a><span class="lineno"> 6419</span>  <span class="keywordflow">if</span> (stream->mode == INPUT || stream->mode == DUPLEX) {</div>
<div class="line"><a name="l06420"></a><span class="lineno"> 6420</span> </div>
<div class="line"><a name="l06421"></a><span class="lineno"> 6421</span>  <span class="comment">// Setup parameters.</span></div>
<div class="line"><a name="l06422"></a><span class="lineno"> 6422</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1]) {</div>
<div class="line"><a name="l06423"></a><span class="lineno"> 6423</span>  buffer = stream->deviceBuffer;</div>
<div class="line"><a name="l06424"></a><span class="lineno"> 6424</span>  channels = stream->nDeviceChannels[1];</div>
<div class="line"><a name="l06425"></a><span class="lineno"> 6425</span>  format = stream->deviceFormat[1];</div>
<div class="line"><a name="l06426"></a><span class="lineno"> 6426</span>  }</div>
<div class="line"><a name="l06427"></a><span class="lineno"> 6427</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l06428"></a><span class="lineno"> 6428</span>  buffer = stream->userBuffer;</div>
<div class="line"><a name="l06429"></a><span class="lineno"> 6429</span>  channels = stream->nUserChannels[1];</div>
<div class="line"><a name="l06430"></a><span class="lineno"> 6430</span>  format = stream->userFormat;</div>
<div class="line"><a name="l06431"></a><span class="lineno"> 6431</span>  }</div>
<div class="line"><a name="l06432"></a><span class="lineno"> 6432</span> </div>
<div class="line"><a name="l06433"></a><span class="lineno"> 6433</span>  <span class="comment">// Read interleaved samples from device.</span></div>
<div class="line"><a name="l06434"></a><span class="lineno"> 6434</span>  alReadFrames(stream->handle[1], buffer, stream->bufferSize);</div>
<div class="line"><a name="l06435"></a><span class="lineno"> 6435</span> </div>
<div class="line"><a name="l06436"></a><span class="lineno"> 6436</span>  <span class="comment">// Do byte swapping if necessary.</span></div>
<div class="line"><a name="l06437"></a><span class="lineno"> 6437</span>  <span class="keywordflow">if</span> (stream->doByteSwap[1])</div>
<div class="line"><a name="l06438"></a><span class="lineno"> 6438</span>  byteSwapBuffer(buffer, stream->bufferSize * channels, format);</div>
<div class="line"><a name="l06439"></a><span class="lineno"> 6439</span> </div>
<div class="line"><a name="l06440"></a><span class="lineno"> 6440</span>  <span class="comment">// Do buffer conversion if necessary.</span></div>
<div class="line"><a name="l06441"></a><span class="lineno"> 6441</span>  <span class="keywordflow">if</span> (stream->doConvertBuffer[1])</div>
<div class="line"><a name="l06442"></a><span class="lineno"> 6442</span>  convertStreamBuffer(stream, INPUT);</div>
<div class="line"><a name="l06443"></a><span class="lineno"> 6443</span>  }</div>
<div class="line"><a name="l06444"></a><span class="lineno"> 6444</span> </div>
<div class="line"><a name="l06445"></a><span class="lineno"> 6445</span>  unlock:</div>
<div class="line"><a name="l06446"></a><span class="lineno"> 6446</span>  <a class="code" href="RtAudio_8cxx.html#a7d74f24dda3bbc931a22221544e7dcc9">MUTEX_UNLOCK</a>(&stream->mutex);</div>
<div class="line"><a name="l06447"></a><span class="lineno"> 6447</span> </div>
<div class="line"><a name="l06448"></a><span class="lineno"> 6448</span>  <span class="keywordflow">if</span> (stream->callbackInfo.usingCallback && stopStream)</div>
<div class="line"><a name="l06449"></a><span class="lineno"> 6449</span>  this-><a class="code" href="classRtAudio.html#a57b5c8cfaaa4ab6f8bb64bcd4777d516" title="Stop a stream, allowing any samples remaining in the queue to be played out and/or read in...">stopStream</a>(streamId);</div>
<div class="line"><a name="l06450"></a><span class="lineno"> 6450</span> }</div>
<div class="line"><a name="l06451"></a><span class="lineno"> 6451</span> </div>
<div class="line"><a name="l06452"></a><span class="lineno"> 6452</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">void</span> *callbackHandler(<span class="keywordtype">void</span> *ptr)</div>
<div class="line"><a name="l06453"></a><span class="lineno"> 6453</span> {</div>
<div class="line"><a name="l06454"></a><span class="lineno"> 6454</span>  <a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *info = (<a class="code" href="structCALLBACK__INFO.html">CALLBACK_INFO</a> *) ptr;</div>
<div class="line"><a name="l06455"></a><span class="lineno"> 6455</span>  <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *<span class="keywordtype">object</span> = (<a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ class.">RtAudio</a> *) info-><a class="code" href="structCALLBACK__INFO.html#a660fbc9d5e3dce46320228765f6155e0">object</a>;</div>
<div class="line"><a name="l06456"></a><span class="lineno"> 6456</span>  <span class="keywordtype">int</span> stream = info-><a class="code" href="structCALLBACK__INFO.html#a6d89df0c5a65f90fffc8160914c2cf71">streamId</a>;</div>
<div class="line"><a name="l06457"></a><span class="lineno"> 6457</span>  <span class="keywordtype">bool</span> *usingCallback = &info-><a class="code" href="structCALLBACK__INFO.html#a8eaaa9a2eb8d9b6f31a3fd2e4b064061">usingCallback</a>;</div>
<div class="line"><a name="l06458"></a><span class="lineno"> 6458</span> </div>
<div class="line"><a name="l06459"></a><span class="lineno"> 6459</span>  while ( *usingCallback ) {</div>
<div class="line"><a name="l06460"></a><span class="lineno"> 6460</span>  pthread_testcancel();</div>
<div class="line"><a name="l06461"></a><span class="lineno"> 6461</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l06462"></a><span class="lineno"> 6462</span>  <span class="keywordtype">object</span>->tickStream(stream);</div>
<div class="line"><a name="l06463"></a><span class="lineno"> 6463</span>  }</div>
<div class="line"><a name="l06464"></a><span class="lineno"> 6464</span>  <span class="keywordflow">catch</span> (<a class="code" href="classRtError.html" title="Exception handling class for RtAudio.">RtError</a> &exception) {</div>
<div class="line"><a name="l06465"></a><span class="lineno"> 6465</span>  fprintf(stderr, <span class="stringliteral">"\nRtAudio: Callback thread error (%s) ... closing thread.\n\n"</span>,</div>
<div class="line"><a name="l06466"></a><span class="lineno"> 6466</span>  exception.<a class="code" href="classRtError.html#aeb19bdd498bb37c935b1dfbc41195114" title="Returns the "thrown" error message string.">getMessage</a>());</div>
<div class="line"><a name="l06467"></a><span class="lineno"> 6467</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l06468"></a><span class="lineno"> 6468</span>  }</div>
<div class="line"><a name="l06469"></a><span class="lineno"> 6469</span>  }</div>
<div class="line"><a name="l06470"></a><span class="lineno"> 6470</span> </div>
<div class="line"><a name="l06471"></a><span class="lineno"> 6471</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l06472"></a><span class="lineno"> 6472</span> }</div>
<div class="line"><a name="l06473"></a><span class="lineno"> 6473</span> </div>
<div class="line"><a name="l06474"></a><span class="lineno"> 6474</span> <span class="comment">//******************** End of __IRIX_AL__ *********************//</span></div>
<div class="line"><a name="l06475"></a><span class="lineno"> 6475</span> </div>
<div class="line"><a name="l06476"></a><span class="lineno"> 6476</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l06477"></a><span class="lineno"> 6477</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l06478"></a><span class="lineno"> 6478</span> </div>
<div class="line"><a name="l06479"></a><span class="lineno"> 6479</span> <span class="comment">// *************************************************** //</span></div>
<div class="line"><a name="l06480"></a><span class="lineno"> 6480</span> <span class="comment">//</span></div>
<div class="line"><a name="l06481"></a><span class="lineno"> 6481</span> <span class="comment">// Private common (OS-independent) RtAudio methods.</span></div>
<div class="line"><a name="l06482"></a><span class="lineno"> 6482</span> <span class="comment">//</span></div>
<div class="line"><a name="l06483"></a><span class="lineno"> 6483</span> <span class="comment">// *************************************************** //</span></div>
<div class="line"><a name="l06484"></a><span class="lineno"> 6484</span> </div>
<div class="line"><a name="l06485"></a><span class="lineno"> 6485</span> <span class="comment">// This method can be modified to control the behavior of error</span></div>
<div class="line"><a name="l06486"></a><span class="lineno"> 6486</span> <span class="comment">// message reporting and throwing.</span></div>
<div class="line"><a name="l06487"></a><span class="lineno"> 6487</span> <span class="keywordtype">void</span> RtAudio :: error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4" title="Defined RtError types.">RtError::TYPE</a> type)</div>
<div class="line"><a name="l06488"></a><span class="lineno"> 6488</span> {</div>
<div class="line"><a name="l06489"></a><span class="lineno"> 6489</span>  <span class="keywordflow">if</span> (type == <a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>) {</div>
<div class="line"><a name="l06490"></a><span class="lineno"> 6490</span>  fprintf(stderr, <span class="stringliteral">"\n%s\n\n"</span>, message);</div>
<div class="line"><a name="l06491"></a><span class="lineno"> 6491</span>  }</div>
<div class="line"><a name="l06492"></a><span class="lineno"> 6492</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == <a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a20e5a369394d19b704ace17002007eba">RtError::DEBUG_WARNING</a>) {</div>
<div class="line"><a name="l06493"></a><span class="lineno"> 6493</span> <span class="preprocessor">#if defined(__RTAUDIO_DEBUG__)</span></div>
<div class="line"><a name="l06494"></a><span class="lineno"> 6494</span> <span class="preprocessor"></span> fprintf(stderr, <span class="stringliteral">"\n%s\n\n"</span>, message);</div>
<div class="line"><a name="l06495"></a><span class="lineno"> 6495</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l06496"></a><span class="lineno"> 6496</span> <span class="preprocessor"></span> }</div>
<div class="line"><a name="l06497"></a><span class="lineno"> 6497</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l06498"></a><span class="lineno"> 6498</span>  fprintf(stderr, <span class="stringliteral">"\n%s\n\n"</span>, message);</div>
<div class="line"><a name="l06499"></a><span class="lineno"> 6499</span>  <span class="keywordflow">throw</span> <a class="code" href="classRtError.html" title="Exception handling class for RtAudio.">RtError</a>(message, type);</div>
<div class="line"><a name="l06500"></a><span class="lineno"> 6500</span>  }</div>
<div class="line"><a name="l06501"></a><span class="lineno"> 6501</span> }</div>
<div class="line"><a name="l06502"></a><span class="lineno"> 6502</span> </div>
<div class="line"><a name="l06503"></a><span class="lineno"> 6503</span> <span class="keywordtype">void</span> *RtAudio :: verifyStream(<span class="keywordtype">int</span> streamId)</div>
<div class="line"><a name="l06504"></a><span class="lineno"> 6504</span> {</div>
<div class="line"><a name="l06505"></a><span class="lineno"> 6505</span>  <span class="comment">// Verify the stream key.</span></div>
<div class="line"><a name="l06506"></a><span class="lineno"> 6506</span>  <span class="keywordflow">if</span> ( streams.find( streamId ) == streams.end() ) {</div>
<div class="line"><a name="l06507"></a><span class="lineno"> 6507</span>  sprintf(message, <span class="stringliteral">"RtAudio: invalid stream identifier!"</span>);</div>
<div class="line"><a name="l06508"></a><span class="lineno"> 6508</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4ae49e244b799da3bed7b327dbed4bee85">RtError::INVALID_STREAM</a>);</div>
<div class="line"><a name="l06509"></a><span class="lineno"> 6509</span>  }</div>
<div class="line"><a name="l06510"></a><span class="lineno"> 6510</span> </div>
<div class="line"><a name="l06511"></a><span class="lineno"> 6511</span>  <span class="keywordflow">return</span> streams[streamId];</div>
<div class="line"><a name="l06512"></a><span class="lineno"> 6512</span> }</div>
<div class="line"><a name="l06513"></a><span class="lineno"> 6513</span> </div>
<div class="line"><a name="l06514"></a><span class="lineno"> 6514</span> <span class="keywordtype">void</span> RtAudio :: clearDeviceInfo(RTAUDIO_DEVICE *info)</div>
<div class="line"><a name="l06515"></a><span class="lineno"> 6515</span> {</div>
<div class="line"><a name="l06516"></a><span class="lineno"> 6516</span>  <span class="comment">// Don't clear the name or DEVICE_ID fields here ... they are</span></div>
<div class="line"><a name="l06517"></a><span class="lineno"> 6517</span>  <span class="comment">// typically set prior to a call of this function.</span></div>
<div class="line"><a name="l06518"></a><span class="lineno"> 6518</span>  info->probed = <span class="keyword">false</span>;</div>
<div class="line"><a name="l06519"></a><span class="lineno"> 6519</span>  info->maxOutputChannels = 0;</div>
<div class="line"><a name="l06520"></a><span class="lineno"> 6520</span>  info->maxInputChannels = 0;</div>
<div class="line"><a name="l06521"></a><span class="lineno"> 6521</span>  info->maxDuplexChannels = 0;</div>
<div class="line"><a name="l06522"></a><span class="lineno"> 6522</span>  info->minOutputChannels = 0;</div>
<div class="line"><a name="l06523"></a><span class="lineno"> 6523</span>  info->minInputChannels = 0;</div>
<div class="line"><a name="l06524"></a><span class="lineno"> 6524</span>  info->minDuplexChannels = 0;</div>
<div class="line"><a name="l06525"></a><span class="lineno"> 6525</span>  info->hasDuplexSupport = <span class="keyword">false</span>;</div>
<div class="line"><a name="l06526"></a><span class="lineno"> 6526</span>  info->nSampleRates = 0;</div>
<div class="line"><a name="l06527"></a><span class="lineno"> 6527</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<<a class="code" href="classRtAudio.html#a7405def6b99ff5d2c0f95d885514d61ca30fa0221e6d99b2845bdff75d1894289">MAX_SAMPLE_RATES</a>; i++)</div>
<div class="line"><a name="l06528"></a><span class="lineno"> 6528</span>  info->sampleRates[i] = 0;</div>
<div class="line"><a name="l06529"></a><span class="lineno"> 6529</span>  info->nativeFormats = 0;</div>
<div class="line"><a name="l06530"></a><span class="lineno"> 6530</span> }</div>
<div class="line"><a name="l06531"></a><span class="lineno"> 6531</span> </div>
<div class="line"><a name="l06532"></a><span class="lineno"> 6532</span> <span class="keywordtype">int</span> RtAudio :: formatBytes(RTAUDIO_FORMAT format)</div>
<div class="line"><a name="l06533"></a><span class="lineno"> 6533</span> {</div>
<div class="line"><a name="l06534"></a><span class="lineno"> 6534</span>  <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>)</div>
<div class="line"><a name="l06535"></a><span class="lineno"> 6535</span>  <span class="keywordflow">return</span> 2;</div>
<div class="line"><a name="l06536"></a><span class="lineno"> 6536</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a> || format == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a> ||</div>
<div class="line"><a name="l06537"></a><span class="lineno"> 6537</span>  format == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>)</div>
<div class="line"><a name="l06538"></a><span class="lineno"> 6538</span>  <span class="keywordflow">return</span> 4;</div>
<div class="line"><a name="l06539"></a><span class="lineno"> 6539</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>)</div>
<div class="line"><a name="l06540"></a><span class="lineno"> 6540</span>  <span class="keywordflow">return</span> 8;</div>
<div class="line"><a name="l06541"></a><span class="lineno"> 6541</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>)</div>
<div class="line"><a name="l06542"></a><span class="lineno"> 6542</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l06543"></a><span class="lineno"> 6543</span> </div>
<div class="line"><a name="l06544"></a><span class="lineno"> 6544</span>  sprintf(message,<span class="stringliteral">"RtAudio: undefined format in formatBytes()."</span>);</div>
<div class="line"><a name="l06545"></a><span class="lineno"> 6545</span>  error(<a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4a3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a>);</div>
<div class="line"><a name="l06546"></a><span class="lineno"> 6546</span> </div>
<div class="line"><a name="l06547"></a><span class="lineno"> 6547</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l06548"></a><span class="lineno"> 6548</span> }</div>
<div class="line"><a name="l06549"></a><span class="lineno"> 6549</span> </div>
<div class="line"><a name="l06550"></a><span class="lineno"> 6550</span> <span class="keywordtype">void</span> RtAudio :: convertStreamBuffer(RTAUDIO_STREAM *stream, STREAM_MODE mode)</div>
<div class="line"><a name="l06551"></a><span class="lineno"> 6551</span> {</div>
<div class="line"><a name="l06552"></a><span class="lineno"> 6552</span>  <span class="comment">// This method does format conversion, input/output channel compensation, and</span></div>
<div class="line"><a name="l06553"></a><span class="lineno"> 6553</span>  <span class="comment">// data interleaving/deinterleaving. 24-bit integers are assumed to occupy</span></div>
<div class="line"><a name="l06554"></a><span class="lineno"> 6554</span>  <span class="comment">// the upper three bytes of a 32-bit integer.</span></div>
<div class="line"><a name="l06555"></a><span class="lineno"> 6555</span> </div>
<div class="line"><a name="l06556"></a><span class="lineno"> 6556</span>  <span class="keywordtype">int</span> j, jump_in, jump_out, channels;</div>
<div class="line"><a name="l06557"></a><span class="lineno"> 6557</span>  <a class="code" href="classRtAudio.html#acaa2cbc39b529c30848c585e7818d4c8">RTAUDIO_FORMAT</a> format_in, format_out;</div>
<div class="line"><a name="l06558"></a><span class="lineno"> 6558</span>  <span class="keywordtype">char</span> *input, *output;</div>
<div class="line"><a name="l06559"></a><span class="lineno"> 6559</span> </div>
<div class="line"><a name="l06560"></a><span class="lineno"> 6560</span>  <span class="keywordflow">if</span> (mode == INPUT) { <span class="comment">// convert device to user buffer</span></div>
<div class="line"><a name="l06561"></a><span class="lineno"> 6561</span>  input = stream->deviceBuffer;</div>
<div class="line"><a name="l06562"></a><span class="lineno"> 6562</span>  output = stream->userBuffer;</div>
<div class="line"><a name="l06563"></a><span class="lineno"> 6563</span>  jump_in = stream->nDeviceChannels[1];</div>
<div class="line"><a name="l06564"></a><span class="lineno"> 6564</span>  jump_out = stream->nUserChannels[1];</div>
<div class="line"><a name="l06565"></a><span class="lineno"> 6565</span>  format_in = stream->deviceFormat[1];</div>
<div class="line"><a name="l06566"></a><span class="lineno"> 6566</span>  format_out = stream->userFormat;</div>
<div class="line"><a name="l06567"></a><span class="lineno"> 6567</span>  }</div>
<div class="line"><a name="l06568"></a><span class="lineno"> 6568</span>  <span class="keywordflow">else</span> { <span class="comment">// convert user to device buffer</span></div>
<div class="line"><a name="l06569"></a><span class="lineno"> 6569</span>  input = stream->userBuffer;</div>
<div class="line"><a name="l06570"></a><span class="lineno"> 6570</span>  output = stream->deviceBuffer;</div>
<div class="line"><a name="l06571"></a><span class="lineno"> 6571</span>  jump_in = stream->nUserChannels[0];</div>
<div class="line"><a name="l06572"></a><span class="lineno"> 6572</span>  jump_out = stream->nDeviceChannels[0];</div>
<div class="line"><a name="l06573"></a><span class="lineno"> 6573</span>  format_in = stream->userFormat;</div>
<div class="line"><a name="l06574"></a><span class="lineno"> 6574</span>  format_out = stream->deviceFormat[0];</div>
<div class="line"><a name="l06575"></a><span class="lineno"> 6575</span> </div>
<div class="line"><a name="l06576"></a><span class="lineno"> 6576</span>  <span class="comment">// clear our device buffer when in/out duplex device channels are different</span></div>
<div class="line"><a name="l06577"></a><span class="lineno"> 6577</span>  <span class="keywordflow">if</span> ( stream->mode == DUPLEX &&</div>
<div class="line"><a name="l06578"></a><span class="lineno"> 6578</span>  stream->nDeviceChannels[0] != stream->nDeviceChannels[1] )</div>
<div class="line"><a name="l06579"></a><span class="lineno"> 6579</span>  memset(output, 0, stream->bufferSize * jump_out * formatBytes(format_out));</div>
<div class="line"><a name="l06580"></a><span class="lineno"> 6580</span>  }</div>
<div class="line"><a name="l06581"></a><span class="lineno"> 6581</span> </div>
<div class="line"><a name="l06582"></a><span class="lineno"> 6582</span>  channels = (jump_in < jump_out) ? jump_in : jump_out;</div>
<div class="line"><a name="l06583"></a><span class="lineno"> 6583</span> </div>
<div class="line"><a name="l06584"></a><span class="lineno"> 6584</span>  <span class="comment">// Set up the interleave/deinterleave offsets</span></div>
<div class="line"><a name="l06585"></a><span class="lineno"> 6585</span>  std::vector<int> offset_in(channels);</div>
<div class="line"><a name="l06586"></a><span class="lineno"> 6586</span>  std::vector<int> offset_out(channels);</div>
<div class="line"><a name="l06587"></a><span class="lineno"> 6587</span>  <span class="keywordflow">if</span> (mode == INPUT && stream->deInterleave[1]) {</div>
<div class="line"><a name="l06588"></a><span class="lineno"> 6588</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k=0; k<channels; k++) {</div>
<div class="line"><a name="l06589"></a><span class="lineno"> 6589</span>  offset_in[k] = k * stream->bufferSize;</div>
<div class="line"><a name="l06590"></a><span class="lineno"> 6590</span>  offset_out[k] = k;</div>
<div class="line"><a name="l06591"></a><span class="lineno"> 6591</span>  jump_in = 1;</div>
<div class="line"><a name="l06592"></a><span class="lineno"> 6592</span>  }</div>
<div class="line"><a name="l06593"></a><span class="lineno"> 6593</span>  }</div>
<div class="line"><a name="l06594"></a><span class="lineno"> 6594</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mode == OUTPUT && stream->deInterleave[0]) {</div>
<div class="line"><a name="l06595"></a><span class="lineno"> 6595</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k=0; k<channels; k++) {</div>
<div class="line"><a name="l06596"></a><span class="lineno"> 6596</span>  offset_in[k] = k;</div>
<div class="line"><a name="l06597"></a><span class="lineno"> 6597</span>  offset_out[k] = k * stream->bufferSize;</div>
<div class="line"><a name="l06598"></a><span class="lineno"> 6598</span>  jump_out = 1;</div>
<div class="line"><a name="l06599"></a><span class="lineno"> 6599</span>  }</div>
<div class="line"><a name="l06600"></a><span class="lineno"> 6600</span>  }</div>
<div class="line"><a name="l06601"></a><span class="lineno"> 6601</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l06602"></a><span class="lineno"> 6602</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k=0; k<channels; k++) {</div>
<div class="line"><a name="l06603"></a><span class="lineno"> 6603</span>  offset_in[k] = k;</div>
<div class="line"><a name="l06604"></a><span class="lineno"> 6604</span>  offset_out[k] = k;</div>
<div class="line"><a name="l06605"></a><span class="lineno"> 6605</span>  }</div>
<div class="line"><a name="l06606"></a><span class="lineno"> 6606</span>  }</div>
<div class="line"><a name="l06607"></a><span class="lineno"> 6607</span> </div>
<div class="line"><a name="l06608"></a><span class="lineno"> 6608</span>  <span class="keywordflow">if</span> (format_out == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>) {</div>
<div class="line"><a name="l06609"></a><span class="lineno"> 6609</span>  FLOAT64 scale;</div>
<div class="line"><a name="l06610"></a><span class="lineno"> 6610</span>  FLOAT64 *out = (FLOAT64 *)output;</div>
<div class="line"><a name="l06611"></a><span class="lineno"> 6611</span> </div>
<div class="line"><a name="l06612"></a><span class="lineno"> 6612</span>  <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>) {</div>
<div class="line"><a name="l06613"></a><span class="lineno"> 6613</span>  <span class="keywordtype">signed</span> <span class="keywordtype">char</span> *in = (<span class="keywordtype">signed</span> <span class="keywordtype">char</span> *)input;</div>
<div class="line"><a name="l06614"></a><span class="lineno"> 6614</span>  scale = 1.0 / 128.0;</div>
<div class="line"><a name="l06615"></a><span class="lineno"> 6615</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06616"></a><span class="lineno"> 6616</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06617"></a><span class="lineno"> 6617</span>  out[offset_out[j]] = (FLOAT64) in[offset_in[j]];</div>
<div class="line"><a name="l06618"></a><span class="lineno"> 6618</span>  out[offset_out[j]] *= scale;</div>
<div class="line"><a name="l06619"></a><span class="lineno"> 6619</span>  }</div>
<div class="line"><a name="l06620"></a><span class="lineno"> 6620</span>  in += jump_in;</div>
<div class="line"><a name="l06621"></a><span class="lineno"> 6621</span>  out += jump_out;</div>
<div class="line"><a name="l06622"></a><span class="lineno"> 6622</span>  }</div>
<div class="line"><a name="l06623"></a><span class="lineno"> 6623</span>  }</div>
<div class="line"><a name="l06624"></a><span class="lineno"> 6624</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l06625"></a><span class="lineno"> 6625</span>  INT16 *in = (INT16 *)input;</div>
<div class="line"><a name="l06626"></a><span class="lineno"> 6626</span>  scale = 1.0 / 32768.0;</div>
<div class="line"><a name="l06627"></a><span class="lineno"> 6627</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06628"></a><span class="lineno"> 6628</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06629"></a><span class="lineno"> 6629</span>  out[offset_out[j]] = (FLOAT64) in[offset_in[j]];</div>
<div class="line"><a name="l06630"></a><span class="lineno"> 6630</span>  out[offset_out[j]] *= scale;</div>
<div class="line"><a name="l06631"></a><span class="lineno"> 6631</span>  }</div>
<div class="line"><a name="l06632"></a><span class="lineno"> 6632</span>  in += jump_in;</div>
<div class="line"><a name="l06633"></a><span class="lineno"> 6633</span>  out += jump_out;</div>
<div class="line"><a name="l06634"></a><span class="lineno"> 6634</span>  }</div>
<div class="line"><a name="l06635"></a><span class="lineno"> 6635</span>  }</div>
<div class="line"><a name="l06636"></a><span class="lineno"> 6636</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>) {</div>
<div class="line"><a name="l06637"></a><span class="lineno"> 6637</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06638"></a><span class="lineno"> 6638</span>  scale = 1.0 / 2147483648.0;</div>
<div class="line"><a name="l06639"></a><span class="lineno"> 6639</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06640"></a><span class="lineno"> 6640</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06641"></a><span class="lineno"> 6641</span>  out[offset_out[j]] = (FLOAT64) (in[offset_in[j]] & 0xffffff00);</div>
<div class="line"><a name="l06642"></a><span class="lineno"> 6642</span>  out[offset_out[j]] *= scale;</div>
<div class="line"><a name="l06643"></a><span class="lineno"> 6643</span>  }</div>
<div class="line"><a name="l06644"></a><span class="lineno"> 6644</span>  in += jump_in;</div>
<div class="line"><a name="l06645"></a><span class="lineno"> 6645</span>  out += jump_out;</div>
<div class="line"><a name="l06646"></a><span class="lineno"> 6646</span>  }</div>
<div class="line"><a name="l06647"></a><span class="lineno"> 6647</span>  }</div>
<div class="line"><a name="l06648"></a><span class="lineno"> 6648</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>) {</div>
<div class="line"><a name="l06649"></a><span class="lineno"> 6649</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06650"></a><span class="lineno"> 6650</span>  scale = 1.0 / 2147483648.0;</div>
<div class="line"><a name="l06651"></a><span class="lineno"> 6651</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06652"></a><span class="lineno"> 6652</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06653"></a><span class="lineno"> 6653</span>  out[offset_out[j]] = (FLOAT64) in[offset_in[j]];</div>
<div class="line"><a name="l06654"></a><span class="lineno"> 6654</span>  out[offset_out[j]] *= scale;</div>
<div class="line"><a name="l06655"></a><span class="lineno"> 6655</span>  }</div>
<div class="line"><a name="l06656"></a><span class="lineno"> 6656</span>  in += jump_in;</div>
<div class="line"><a name="l06657"></a><span class="lineno"> 6657</span>  out += jump_out;</div>
<div class="line"><a name="l06658"></a><span class="lineno"> 6658</span>  }</div>
<div class="line"><a name="l06659"></a><span class="lineno"> 6659</span>  }</div>
<div class="line"><a name="l06660"></a><span class="lineno"> 6660</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>) {</div>
<div class="line"><a name="l06661"></a><span class="lineno"> 6661</span>  FLOAT32 *in = (FLOAT32 *)input;</div>
<div class="line"><a name="l06662"></a><span class="lineno"> 6662</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06663"></a><span class="lineno"> 6663</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06664"></a><span class="lineno"> 6664</span>  out[offset_out[j]] = (FLOAT64) in[offset_in[j]];</div>
<div class="line"><a name="l06665"></a><span class="lineno"> 6665</span>  }</div>
<div class="line"><a name="l06666"></a><span class="lineno"> 6666</span>  in += jump_in;</div>
<div class="line"><a name="l06667"></a><span class="lineno"> 6667</span>  out += jump_out;</div>
<div class="line"><a name="l06668"></a><span class="lineno"> 6668</span>  }</div>
<div class="line"><a name="l06669"></a><span class="lineno"> 6669</span>  }</div>
<div class="line"><a name="l06670"></a><span class="lineno"> 6670</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>) {</div>
<div class="line"><a name="l06671"></a><span class="lineno"> 6671</span>  <span class="comment">// Channel compensation and/or (de)interleaving only.</span></div>
<div class="line"><a name="l06672"></a><span class="lineno"> 6672</span>  FLOAT64 *in = (FLOAT64 *)input;</div>
<div class="line"><a name="l06673"></a><span class="lineno"> 6673</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06674"></a><span class="lineno"> 6674</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06675"></a><span class="lineno"> 6675</span>  out[offset_out[j]] = in[offset_in[j]];</div>
<div class="line"><a name="l06676"></a><span class="lineno"> 6676</span>  }</div>
<div class="line"><a name="l06677"></a><span class="lineno"> 6677</span>  in += jump_in;</div>
<div class="line"><a name="l06678"></a><span class="lineno"> 6678</span>  out += jump_out;</div>
<div class="line"><a name="l06679"></a><span class="lineno"> 6679</span>  }</div>
<div class="line"><a name="l06680"></a><span class="lineno"> 6680</span>  }</div>
<div class="line"><a name="l06681"></a><span class="lineno"> 6681</span>  }</div>
<div class="line"><a name="l06682"></a><span class="lineno"> 6682</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_out == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>) {</div>
<div class="line"><a name="l06683"></a><span class="lineno"> 6683</span>  FLOAT32 scale;</div>
<div class="line"><a name="l06684"></a><span class="lineno"> 6684</span>  FLOAT32 *out = (FLOAT32 *)output;</div>
<div class="line"><a name="l06685"></a><span class="lineno"> 6685</span> </div>
<div class="line"><a name="l06686"></a><span class="lineno"> 6686</span>  <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>) {</div>
<div class="line"><a name="l06687"></a><span class="lineno"> 6687</span>  <span class="keywordtype">signed</span> <span class="keywordtype">char</span> *in = (<span class="keywordtype">signed</span> <span class="keywordtype">char</span> *)input;</div>
<div class="line"><a name="l06688"></a><span class="lineno"> 6688</span>  scale = 1.0 / 128.0;</div>
<div class="line"><a name="l06689"></a><span class="lineno"> 6689</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06690"></a><span class="lineno"> 6690</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06691"></a><span class="lineno"> 6691</span>  out[offset_out[j]] = (FLOAT32) in[offset_in[j]];</div>
<div class="line"><a name="l06692"></a><span class="lineno"> 6692</span>  out[offset_out[j]] *= scale;</div>
<div class="line"><a name="l06693"></a><span class="lineno"> 6693</span>  }</div>
<div class="line"><a name="l06694"></a><span class="lineno"> 6694</span>  in += jump_in;</div>
<div class="line"><a name="l06695"></a><span class="lineno"> 6695</span>  out += jump_out;</div>
<div class="line"><a name="l06696"></a><span class="lineno"> 6696</span>  }</div>
<div class="line"><a name="l06697"></a><span class="lineno"> 6697</span>  }</div>
<div class="line"><a name="l06698"></a><span class="lineno"> 6698</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l06699"></a><span class="lineno"> 6699</span>  INT16 *in = (INT16 *)input;</div>
<div class="line"><a name="l06700"></a><span class="lineno"> 6700</span>  scale = 1.0 / 32768.0;</div>
<div class="line"><a name="l06701"></a><span class="lineno"> 6701</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06702"></a><span class="lineno"> 6702</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06703"></a><span class="lineno"> 6703</span>  out[offset_out[j]] = (FLOAT32) in[offset_in[j]];</div>
<div class="line"><a name="l06704"></a><span class="lineno"> 6704</span>  out[offset_out[j]] *= scale;</div>
<div class="line"><a name="l06705"></a><span class="lineno"> 6705</span>  }</div>
<div class="line"><a name="l06706"></a><span class="lineno"> 6706</span>  in += jump_in;</div>
<div class="line"><a name="l06707"></a><span class="lineno"> 6707</span>  out += jump_out;</div>
<div class="line"><a name="l06708"></a><span class="lineno"> 6708</span>  }</div>
<div class="line"><a name="l06709"></a><span class="lineno"> 6709</span>  }</div>
<div class="line"><a name="l06710"></a><span class="lineno"> 6710</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>) {</div>
<div class="line"><a name="l06711"></a><span class="lineno"> 6711</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06712"></a><span class="lineno"> 6712</span>  scale = 1.0 / 2147483648.0;</div>
<div class="line"><a name="l06713"></a><span class="lineno"> 6713</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06714"></a><span class="lineno"> 6714</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06715"></a><span class="lineno"> 6715</span>  out[offset_out[j]] = (FLOAT32) (in[offset_in[j]] & 0xffffff00);</div>
<div class="line"><a name="l06716"></a><span class="lineno"> 6716</span>  out[offset_out[j]] *= scale;</div>
<div class="line"><a name="l06717"></a><span class="lineno"> 6717</span>  }</div>
<div class="line"><a name="l06718"></a><span class="lineno"> 6718</span>  in += jump_in;</div>
<div class="line"><a name="l06719"></a><span class="lineno"> 6719</span>  out += jump_out;</div>
<div class="line"><a name="l06720"></a><span class="lineno"> 6720</span>  }</div>
<div class="line"><a name="l06721"></a><span class="lineno"> 6721</span>  }</div>
<div class="line"><a name="l06722"></a><span class="lineno"> 6722</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>) {</div>
<div class="line"><a name="l06723"></a><span class="lineno"> 6723</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06724"></a><span class="lineno"> 6724</span>  scale = 1.0 / 2147483648.0;</div>
<div class="line"><a name="l06725"></a><span class="lineno"> 6725</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06726"></a><span class="lineno"> 6726</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06727"></a><span class="lineno"> 6727</span>  out[offset_out[j]] = (FLOAT32) in[offset_in[j]];</div>
<div class="line"><a name="l06728"></a><span class="lineno"> 6728</span>  out[offset_out[j]] *= scale;</div>
<div class="line"><a name="l06729"></a><span class="lineno"> 6729</span>  }</div>
<div class="line"><a name="l06730"></a><span class="lineno"> 6730</span>  in += jump_in;</div>
<div class="line"><a name="l06731"></a><span class="lineno"> 6731</span>  out += jump_out;</div>
<div class="line"><a name="l06732"></a><span class="lineno"> 6732</span>  }</div>
<div class="line"><a name="l06733"></a><span class="lineno"> 6733</span>  }</div>
<div class="line"><a name="l06734"></a><span class="lineno"> 6734</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>) {</div>
<div class="line"><a name="l06735"></a><span class="lineno"> 6735</span>  <span class="comment">// Channel compensation and/or (de)interleaving only.</span></div>
<div class="line"><a name="l06736"></a><span class="lineno"> 6736</span>  FLOAT32 *in = (FLOAT32 *)input;</div>
<div class="line"><a name="l06737"></a><span class="lineno"> 6737</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06738"></a><span class="lineno"> 6738</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06739"></a><span class="lineno"> 6739</span>  out[offset_out[j]] = in[offset_in[j]];</div>
<div class="line"><a name="l06740"></a><span class="lineno"> 6740</span>  }</div>
<div class="line"><a name="l06741"></a><span class="lineno"> 6741</span>  in += jump_in;</div>
<div class="line"><a name="l06742"></a><span class="lineno"> 6742</span>  out += jump_out;</div>
<div class="line"><a name="l06743"></a><span class="lineno"> 6743</span>  }</div>
<div class="line"><a name="l06744"></a><span class="lineno"> 6744</span>  }</div>
<div class="line"><a name="l06745"></a><span class="lineno"> 6745</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>) {</div>
<div class="line"><a name="l06746"></a><span class="lineno"> 6746</span>  FLOAT64 *in = (FLOAT64 *)input;</div>
<div class="line"><a name="l06747"></a><span class="lineno"> 6747</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06748"></a><span class="lineno"> 6748</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06749"></a><span class="lineno"> 6749</span>  out[offset_out[j]] = (FLOAT32) in[offset_in[j]];</div>
<div class="line"><a name="l06750"></a><span class="lineno"> 6750</span>  }</div>
<div class="line"><a name="l06751"></a><span class="lineno"> 6751</span>  in += jump_in;</div>
<div class="line"><a name="l06752"></a><span class="lineno"> 6752</span>  out += jump_out;</div>
<div class="line"><a name="l06753"></a><span class="lineno"> 6753</span>  }</div>
<div class="line"><a name="l06754"></a><span class="lineno"> 6754</span>  }</div>
<div class="line"><a name="l06755"></a><span class="lineno"> 6755</span>  }</div>
<div class="line"><a name="l06756"></a><span class="lineno"> 6756</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_out == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>) {</div>
<div class="line"><a name="l06757"></a><span class="lineno"> 6757</span>  INT32 *out = (INT32 *)output;</div>
<div class="line"><a name="l06758"></a><span class="lineno"> 6758</span>  <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>) {</div>
<div class="line"><a name="l06759"></a><span class="lineno"> 6759</span>  <span class="keywordtype">signed</span> <span class="keywordtype">char</span> *in = (<span class="keywordtype">signed</span> <span class="keywordtype">char</span> *)input;</div>
<div class="line"><a name="l06760"></a><span class="lineno"> 6760</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06761"></a><span class="lineno"> 6761</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06762"></a><span class="lineno"> 6762</span>  out[offset_out[j]] = (INT32) in[offset_in[j]];</div>
<div class="line"><a name="l06763"></a><span class="lineno"> 6763</span>  out[offset_out[j]] <<= 24;</div>
<div class="line"><a name="l06764"></a><span class="lineno"> 6764</span>  }</div>
<div class="line"><a name="l06765"></a><span class="lineno"> 6765</span>  in += jump_in;</div>
<div class="line"><a name="l06766"></a><span class="lineno"> 6766</span>  out += jump_out;</div>
<div class="line"><a name="l06767"></a><span class="lineno"> 6767</span>  }</div>
<div class="line"><a name="l06768"></a><span class="lineno"> 6768</span>  }</div>
<div class="line"><a name="l06769"></a><span class="lineno"> 6769</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l06770"></a><span class="lineno"> 6770</span>  INT16 *in = (INT16 *)input;</div>
<div class="line"><a name="l06771"></a><span class="lineno"> 6771</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06772"></a><span class="lineno"> 6772</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06773"></a><span class="lineno"> 6773</span>  out[offset_out[j]] = (INT32) in[offset_in[j]];</div>
<div class="line"><a name="l06774"></a><span class="lineno"> 6774</span>  out[offset_out[j]] <<= 16;</div>
<div class="line"><a name="l06775"></a><span class="lineno"> 6775</span>  }</div>
<div class="line"><a name="l06776"></a><span class="lineno"> 6776</span>  in += jump_in;</div>
<div class="line"><a name="l06777"></a><span class="lineno"> 6777</span>  out += jump_out;</div>
<div class="line"><a name="l06778"></a><span class="lineno"> 6778</span>  }</div>
<div class="line"><a name="l06779"></a><span class="lineno"> 6779</span>  }</div>
<div class="line"><a name="l06780"></a><span class="lineno"> 6780</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>) {</div>
<div class="line"><a name="l06781"></a><span class="lineno"> 6781</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06782"></a><span class="lineno"> 6782</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06783"></a><span class="lineno"> 6783</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06784"></a><span class="lineno"> 6784</span>  out[offset_out[j]] = (INT32) in[offset_in[j]];</div>
<div class="line"><a name="l06785"></a><span class="lineno"> 6785</span>  }</div>
<div class="line"><a name="l06786"></a><span class="lineno"> 6786</span>  in += jump_in;</div>
<div class="line"><a name="l06787"></a><span class="lineno"> 6787</span>  out += jump_out;</div>
<div class="line"><a name="l06788"></a><span class="lineno"> 6788</span>  }</div>
<div class="line"><a name="l06789"></a><span class="lineno"> 6789</span>  }</div>
<div class="line"><a name="l06790"></a><span class="lineno"> 6790</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>) {</div>
<div class="line"><a name="l06791"></a><span class="lineno"> 6791</span>  <span class="comment">// Channel compensation and/or (de)interleaving only.</span></div>
<div class="line"><a name="l06792"></a><span class="lineno"> 6792</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06793"></a><span class="lineno"> 6793</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06794"></a><span class="lineno"> 6794</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06795"></a><span class="lineno"> 6795</span>  out[offset_out[j]] = in[offset_in[j]];</div>
<div class="line"><a name="l06796"></a><span class="lineno"> 6796</span>  }</div>
<div class="line"><a name="l06797"></a><span class="lineno"> 6797</span>  in += jump_in;</div>
<div class="line"><a name="l06798"></a><span class="lineno"> 6798</span>  out += jump_out;</div>
<div class="line"><a name="l06799"></a><span class="lineno"> 6799</span>  }</div>
<div class="line"><a name="l06800"></a><span class="lineno"> 6800</span>  }</div>
<div class="line"><a name="l06801"></a><span class="lineno"> 6801</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>) {</div>
<div class="line"><a name="l06802"></a><span class="lineno"> 6802</span>  FLOAT32 *in = (FLOAT32 *)input;</div>
<div class="line"><a name="l06803"></a><span class="lineno"> 6803</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06804"></a><span class="lineno"> 6804</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06805"></a><span class="lineno"> 6805</span>  out[offset_out[j]] = (INT32) (in[offset_in[j]] * 2147483647.0);</div>
<div class="line"><a name="l06806"></a><span class="lineno"> 6806</span>  }</div>
<div class="line"><a name="l06807"></a><span class="lineno"> 6807</span>  in += jump_in;</div>
<div class="line"><a name="l06808"></a><span class="lineno"> 6808</span>  out += jump_out;</div>
<div class="line"><a name="l06809"></a><span class="lineno"> 6809</span>  }</div>
<div class="line"><a name="l06810"></a><span class="lineno"> 6810</span>  }</div>
<div class="line"><a name="l06811"></a><span class="lineno"> 6811</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>) {</div>
<div class="line"><a name="l06812"></a><span class="lineno"> 6812</span>  FLOAT64 *in = (FLOAT64 *)input;</div>
<div class="line"><a name="l06813"></a><span class="lineno"> 6813</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06814"></a><span class="lineno"> 6814</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06815"></a><span class="lineno"> 6815</span>  out[offset_out[j]] = (INT32) (in[offset_in[j]] * 2147483647.0);</div>
<div class="line"><a name="l06816"></a><span class="lineno"> 6816</span>  }</div>
<div class="line"><a name="l06817"></a><span class="lineno"> 6817</span>  in += jump_in;</div>
<div class="line"><a name="l06818"></a><span class="lineno"> 6818</span>  out += jump_out;</div>
<div class="line"><a name="l06819"></a><span class="lineno"> 6819</span>  }</div>
<div class="line"><a name="l06820"></a><span class="lineno"> 6820</span>  }</div>
<div class="line"><a name="l06821"></a><span class="lineno"> 6821</span>  }</div>
<div class="line"><a name="l06822"></a><span class="lineno"> 6822</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_out == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>) {</div>
<div class="line"><a name="l06823"></a><span class="lineno"> 6823</span>  INT32 *out = (INT32 *)output;</div>
<div class="line"><a name="l06824"></a><span class="lineno"> 6824</span>  <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>) {</div>
<div class="line"><a name="l06825"></a><span class="lineno"> 6825</span>  <span class="keywordtype">signed</span> <span class="keywordtype">char</span> *in = (<span class="keywordtype">signed</span> <span class="keywordtype">char</span> *)input;</div>
<div class="line"><a name="l06826"></a><span class="lineno"> 6826</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06827"></a><span class="lineno"> 6827</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06828"></a><span class="lineno"> 6828</span>  out[offset_out[j]] = (INT32) in[offset_in[j]];</div>
<div class="line"><a name="l06829"></a><span class="lineno"> 6829</span>  out[offset_out[j]] <<= 24;</div>
<div class="line"><a name="l06830"></a><span class="lineno"> 6830</span>  }</div>
<div class="line"><a name="l06831"></a><span class="lineno"> 6831</span>  in += jump_in;</div>
<div class="line"><a name="l06832"></a><span class="lineno"> 6832</span>  out += jump_out;</div>
<div class="line"><a name="l06833"></a><span class="lineno"> 6833</span>  }</div>
<div class="line"><a name="l06834"></a><span class="lineno"> 6834</span>  }</div>
<div class="line"><a name="l06835"></a><span class="lineno"> 6835</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l06836"></a><span class="lineno"> 6836</span>  INT16 *in = (INT16 *)input;</div>
<div class="line"><a name="l06837"></a><span class="lineno"> 6837</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06838"></a><span class="lineno"> 6838</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06839"></a><span class="lineno"> 6839</span>  out[offset_out[j]] = (INT32) in[offset_in[j]];</div>
<div class="line"><a name="l06840"></a><span class="lineno"> 6840</span>  out[offset_out[j]] <<= 16;</div>
<div class="line"><a name="l06841"></a><span class="lineno"> 6841</span>  }</div>
<div class="line"><a name="l06842"></a><span class="lineno"> 6842</span>  in += jump_in;</div>
<div class="line"><a name="l06843"></a><span class="lineno"> 6843</span>  out += jump_out;</div>
<div class="line"><a name="l06844"></a><span class="lineno"> 6844</span>  }</div>
<div class="line"><a name="l06845"></a><span class="lineno"> 6845</span>  }</div>
<div class="line"><a name="l06846"></a><span class="lineno"> 6846</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>) {</div>
<div class="line"><a name="l06847"></a><span class="lineno"> 6847</span>  <span class="comment">// Channel compensation and/or (de)interleaving only.</span></div>
<div class="line"><a name="l06848"></a><span class="lineno"> 6848</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06849"></a><span class="lineno"> 6849</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06850"></a><span class="lineno"> 6850</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06851"></a><span class="lineno"> 6851</span>  out[offset_out[j]] = in[offset_in[j]];</div>
<div class="line"><a name="l06852"></a><span class="lineno"> 6852</span>  }</div>
<div class="line"><a name="l06853"></a><span class="lineno"> 6853</span>  in += jump_in;</div>
<div class="line"><a name="l06854"></a><span class="lineno"> 6854</span>  out += jump_out;</div>
<div class="line"><a name="l06855"></a><span class="lineno"> 6855</span>  }</div>
<div class="line"><a name="l06856"></a><span class="lineno"> 6856</span>  }</div>
<div class="line"><a name="l06857"></a><span class="lineno"> 6857</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>) {</div>
<div class="line"><a name="l06858"></a><span class="lineno"> 6858</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06859"></a><span class="lineno"> 6859</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06860"></a><span class="lineno"> 6860</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06861"></a><span class="lineno"> 6861</span>  out[offset_out[j]] = (INT32) (in[offset_in[j]] & 0xffffff00);</div>
<div class="line"><a name="l06862"></a><span class="lineno"> 6862</span>  }</div>
<div class="line"><a name="l06863"></a><span class="lineno"> 6863</span>  in += jump_in;</div>
<div class="line"><a name="l06864"></a><span class="lineno"> 6864</span>  out += jump_out;</div>
<div class="line"><a name="l06865"></a><span class="lineno"> 6865</span>  }</div>
<div class="line"><a name="l06866"></a><span class="lineno"> 6866</span>  }</div>
<div class="line"><a name="l06867"></a><span class="lineno"> 6867</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>) {</div>
<div class="line"><a name="l06868"></a><span class="lineno"> 6868</span>  FLOAT32 *in = (FLOAT32 *)input;</div>
<div class="line"><a name="l06869"></a><span class="lineno"> 6869</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06870"></a><span class="lineno"> 6870</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06871"></a><span class="lineno"> 6871</span>  out[offset_out[j]] = (INT32) (in[offset_in[j]] * 2147483647.0);</div>
<div class="line"><a name="l06872"></a><span class="lineno"> 6872</span>  }</div>
<div class="line"><a name="l06873"></a><span class="lineno"> 6873</span>  in += jump_in;</div>
<div class="line"><a name="l06874"></a><span class="lineno"> 6874</span>  out += jump_out;</div>
<div class="line"><a name="l06875"></a><span class="lineno"> 6875</span>  }</div>
<div class="line"><a name="l06876"></a><span class="lineno"> 6876</span>  }</div>
<div class="line"><a name="l06877"></a><span class="lineno"> 6877</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>) {</div>
<div class="line"><a name="l06878"></a><span class="lineno"> 6878</span>  FLOAT64 *in = (FLOAT64 *)input;</div>
<div class="line"><a name="l06879"></a><span class="lineno"> 6879</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06880"></a><span class="lineno"> 6880</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06881"></a><span class="lineno"> 6881</span>  out[offset_out[j]] = (INT32) (in[offset_in[j]] * 2147483647.0);</div>
<div class="line"><a name="l06882"></a><span class="lineno"> 6882</span>  }</div>
<div class="line"><a name="l06883"></a><span class="lineno"> 6883</span>  in += jump_in;</div>
<div class="line"><a name="l06884"></a><span class="lineno"> 6884</span>  out += jump_out;</div>
<div class="line"><a name="l06885"></a><span class="lineno"> 6885</span>  }</div>
<div class="line"><a name="l06886"></a><span class="lineno"> 6886</span>  }</div>
<div class="line"><a name="l06887"></a><span class="lineno"> 6887</span>  }</div>
<div class="line"><a name="l06888"></a><span class="lineno"> 6888</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_out == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l06889"></a><span class="lineno"> 6889</span>  INT16 *out = (INT16 *)output;</div>
<div class="line"><a name="l06890"></a><span class="lineno"> 6890</span>  <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>) {</div>
<div class="line"><a name="l06891"></a><span class="lineno"> 6891</span>  <span class="keywordtype">signed</span> <span class="keywordtype">char</span> *in = (<span class="keywordtype">signed</span> <span class="keywordtype">char</span> *)input;</div>
<div class="line"><a name="l06892"></a><span class="lineno"> 6892</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06893"></a><span class="lineno"> 6893</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06894"></a><span class="lineno"> 6894</span>  out[offset_out[j]] = (INT16) in[offset_in[j]];</div>
<div class="line"><a name="l06895"></a><span class="lineno"> 6895</span>  out[offset_out[j]] <<= 8;</div>
<div class="line"><a name="l06896"></a><span class="lineno"> 6896</span>  }</div>
<div class="line"><a name="l06897"></a><span class="lineno"> 6897</span>  in += jump_in;</div>
<div class="line"><a name="l06898"></a><span class="lineno"> 6898</span>  out += jump_out;</div>
<div class="line"><a name="l06899"></a><span class="lineno"> 6899</span>  }</div>
<div class="line"><a name="l06900"></a><span class="lineno"> 6900</span>  }</div>
<div class="line"><a name="l06901"></a><span class="lineno"> 6901</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l06902"></a><span class="lineno"> 6902</span>  <span class="comment">// Channel compensation and/or (de)interleaving only.</span></div>
<div class="line"><a name="l06903"></a><span class="lineno"> 6903</span>  INT16 *in = (INT16 *)input;</div>
<div class="line"><a name="l06904"></a><span class="lineno"> 6904</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06905"></a><span class="lineno"> 6905</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06906"></a><span class="lineno"> 6906</span>  out[offset_out[j]] = in[offset_in[j]];</div>
<div class="line"><a name="l06907"></a><span class="lineno"> 6907</span>  }</div>
<div class="line"><a name="l06908"></a><span class="lineno"> 6908</span>  in += jump_in;</div>
<div class="line"><a name="l06909"></a><span class="lineno"> 6909</span>  out += jump_out;</div>
<div class="line"><a name="l06910"></a><span class="lineno"> 6910</span>  }</div>
<div class="line"><a name="l06911"></a><span class="lineno"> 6911</span>  }</div>
<div class="line"><a name="l06912"></a><span class="lineno"> 6912</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>) {</div>
<div class="line"><a name="l06913"></a><span class="lineno"> 6913</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06914"></a><span class="lineno"> 6914</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06915"></a><span class="lineno"> 6915</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06916"></a><span class="lineno"> 6916</span>  out[offset_out[j]] = (INT16) ((in[offset_in[j]] >> 16) & 0x0000ffff);</div>
<div class="line"><a name="l06917"></a><span class="lineno"> 6917</span>  }</div>
<div class="line"><a name="l06918"></a><span class="lineno"> 6918</span>  in += jump_in;</div>
<div class="line"><a name="l06919"></a><span class="lineno"> 6919</span>  out += jump_out;</div>
<div class="line"><a name="l06920"></a><span class="lineno"> 6920</span>  }</div>
<div class="line"><a name="l06921"></a><span class="lineno"> 6921</span>  }</div>
<div class="line"><a name="l06922"></a><span class="lineno"> 6922</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>) {</div>
<div class="line"><a name="l06923"></a><span class="lineno"> 6923</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06924"></a><span class="lineno"> 6924</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06925"></a><span class="lineno"> 6925</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06926"></a><span class="lineno"> 6926</span>  out[offset_out[j]] = (INT16) ((in[offset_in[j]] >> 16) & 0x0000ffff);</div>
<div class="line"><a name="l06927"></a><span class="lineno"> 6927</span>  }</div>
<div class="line"><a name="l06928"></a><span class="lineno"> 6928</span>  in += jump_in;</div>
<div class="line"><a name="l06929"></a><span class="lineno"> 6929</span>  out += jump_out;</div>
<div class="line"><a name="l06930"></a><span class="lineno"> 6930</span>  }</div>
<div class="line"><a name="l06931"></a><span class="lineno"> 6931</span>  }</div>
<div class="line"><a name="l06932"></a><span class="lineno"> 6932</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>) {</div>
<div class="line"><a name="l06933"></a><span class="lineno"> 6933</span>  FLOAT32 *in = (FLOAT32 *)input;</div>
<div class="line"><a name="l06934"></a><span class="lineno"> 6934</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06935"></a><span class="lineno"> 6935</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06936"></a><span class="lineno"> 6936</span>  out[offset_out[j]] = (INT16) (in[offset_in[j]] * 32767.0);</div>
<div class="line"><a name="l06937"></a><span class="lineno"> 6937</span>  }</div>
<div class="line"><a name="l06938"></a><span class="lineno"> 6938</span>  in += jump_in;</div>
<div class="line"><a name="l06939"></a><span class="lineno"> 6939</span>  out += jump_out;</div>
<div class="line"><a name="l06940"></a><span class="lineno"> 6940</span>  }</div>
<div class="line"><a name="l06941"></a><span class="lineno"> 6941</span>  }</div>
<div class="line"><a name="l06942"></a><span class="lineno"> 6942</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>) {</div>
<div class="line"><a name="l06943"></a><span class="lineno"> 6943</span>  FLOAT64 *in = (FLOAT64 *)input;</div>
<div class="line"><a name="l06944"></a><span class="lineno"> 6944</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06945"></a><span class="lineno"> 6945</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06946"></a><span class="lineno"> 6946</span>  out[offset_out[j]] = (INT16) (in[offset_in[j]] * 32767.0);</div>
<div class="line"><a name="l06947"></a><span class="lineno"> 6947</span>  }</div>
<div class="line"><a name="l06948"></a><span class="lineno"> 6948</span>  in += jump_in;</div>
<div class="line"><a name="l06949"></a><span class="lineno"> 6949</span>  out += jump_out;</div>
<div class="line"><a name="l06950"></a><span class="lineno"> 6950</span>  }</div>
<div class="line"><a name="l06951"></a><span class="lineno"> 6951</span>  }</div>
<div class="line"><a name="l06952"></a><span class="lineno"> 6952</span>  }</div>
<div class="line"><a name="l06953"></a><span class="lineno"> 6953</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_out == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>) {</div>
<div class="line"><a name="l06954"></a><span class="lineno"> 6954</span>  <span class="keywordtype">signed</span> <span class="keywordtype">char</span> *out = (<span class="keywordtype">signed</span> <span class="keywordtype">char</span> *)output;</div>
<div class="line"><a name="l06955"></a><span class="lineno"> 6955</span>  <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ada069cf9b36019d32c0be9bb3beaef00">RTAUDIO_SINT8</a>) {</div>
<div class="line"><a name="l06956"></a><span class="lineno"> 6956</span>  <span class="comment">// Channel compensation and/or (de)interleaving only.</span></div>
<div class="line"><a name="l06957"></a><span class="lineno"> 6957</span>  <span class="keywordtype">signed</span> <span class="keywordtype">char</span> *in = (<span class="keywordtype">signed</span> <span class="keywordtype">char</span> *)input;</div>
<div class="line"><a name="l06958"></a><span class="lineno"> 6958</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06959"></a><span class="lineno"> 6959</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06960"></a><span class="lineno"> 6960</span>  out[offset_out[j]] = in[offset_in[j]];</div>
<div class="line"><a name="l06961"></a><span class="lineno"> 6961</span>  }</div>
<div class="line"><a name="l06962"></a><span class="lineno"> 6962</span>  in += jump_in;</div>
<div class="line"><a name="l06963"></a><span class="lineno"> 6963</span>  out += jump_out;</div>
<div class="line"><a name="l06964"></a><span class="lineno"> 6964</span>  }</div>
<div class="line"><a name="l06965"></a><span class="lineno"> 6965</span>  }</div>
<div class="line"><a name="l06966"></a><span class="lineno"> 6966</span>  <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l06967"></a><span class="lineno"> 6967</span>  INT16 *in = (INT16 *)input;</div>
<div class="line"><a name="l06968"></a><span class="lineno"> 6968</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06969"></a><span class="lineno"> 6969</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06970"></a><span class="lineno"> 6970</span>  out[offset_out[j]] = (<span class="keywordtype">signed</span> char) ((in[offset_in[j]] >> 8) & 0x00ff);</div>
<div class="line"><a name="l06971"></a><span class="lineno"> 6971</span>  }</div>
<div class="line"><a name="l06972"></a><span class="lineno"> 6972</span>  in += jump_in;</div>
<div class="line"><a name="l06973"></a><span class="lineno"> 6973</span>  out += jump_out;</div>
<div class="line"><a name="l06974"></a><span class="lineno"> 6974</span>  }</div>
<div class="line"><a name="l06975"></a><span class="lineno"> 6975</span>  }</div>
<div class="line"><a name="l06976"></a><span class="lineno"> 6976</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a>) {</div>
<div class="line"><a name="l06977"></a><span class="lineno"> 6977</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06978"></a><span class="lineno"> 6978</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06979"></a><span class="lineno"> 6979</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06980"></a><span class="lineno"> 6980</span>  out[offset_out[j]] = (<span class="keywordtype">signed</span> char) ((in[offset_in[j]] >> 24) & 0x000000ff);</div>
<div class="line"><a name="l06981"></a><span class="lineno"> 6981</span>  }</div>
<div class="line"><a name="l06982"></a><span class="lineno"> 6982</span>  in += jump_in;</div>
<div class="line"><a name="l06983"></a><span class="lineno"> 6983</span>  out += jump_out;</div>
<div class="line"><a name="l06984"></a><span class="lineno"> 6984</span>  }</div>
<div class="line"><a name="l06985"></a><span class="lineno"> 6985</span>  }</div>
<div class="line"><a name="l06986"></a><span class="lineno"> 6986</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a>) {</div>
<div class="line"><a name="l06987"></a><span class="lineno"> 6987</span>  INT32 *in = (INT32 *)input;</div>
<div class="line"><a name="l06988"></a><span class="lineno"> 6988</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06989"></a><span class="lineno"> 6989</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l06990"></a><span class="lineno"> 6990</span>  out[offset_out[j]] = (<span class="keywordtype">signed</span> char) ((in[offset_in[j]] >> 24) & 0x000000ff);</div>
<div class="line"><a name="l06991"></a><span class="lineno"> 6991</span>  }</div>
<div class="line"><a name="l06992"></a><span class="lineno"> 6992</span>  in += jump_in;</div>
<div class="line"><a name="l06993"></a><span class="lineno"> 6993</span>  out += jump_out;</div>
<div class="line"><a name="l06994"></a><span class="lineno"> 6994</span>  }</div>
<div class="line"><a name="l06995"></a><span class="lineno"> 6995</span>  }</div>
<div class="line"><a name="l06996"></a><span class="lineno"> 6996</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>) {</div>
<div class="line"><a name="l06997"></a><span class="lineno"> 6997</span>  FLOAT32 *in = (FLOAT32 *)input;</div>
<div class="line"><a name="l06998"></a><span class="lineno"> 6998</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l06999"></a><span class="lineno"> 6999</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l07000"></a><span class="lineno"> 7000</span>  out[offset_out[j]] = (<span class="keywordtype">signed</span> char) (in[offset_in[j]] * 127.0);</div>
<div class="line"><a name="l07001"></a><span class="lineno"> 7001</span>  }</div>
<div class="line"><a name="l07002"></a><span class="lineno"> 7002</span>  in += jump_in;</div>
<div class="line"><a name="l07003"></a><span class="lineno"> 7003</span>  out += jump_out;</div>
<div class="line"><a name="l07004"></a><span class="lineno"> 7004</span>  }</div>
<div class="line"><a name="l07005"></a><span class="lineno"> 7005</span>  }</div>
<div class="line"><a name="l07006"></a><span class="lineno"> 7006</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format_in == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>) {</div>
<div class="line"><a name="l07007"></a><span class="lineno"> 7007</span>  FLOAT64 *in = (FLOAT64 *)input;</div>
<div class="line"><a name="l07008"></a><span class="lineno"> 7008</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<stream->bufferSize; i++) {</div>
<div class="line"><a name="l07009"></a><span class="lineno"> 7009</span>  <span class="keywordflow">for</span> (j=0; j<channels; j++) {</div>
<div class="line"><a name="l07010"></a><span class="lineno"> 7010</span>  out[offset_out[j]] = (<span class="keywordtype">signed</span> char) (in[offset_in[j]] * 127.0);</div>
<div class="line"><a name="l07011"></a><span class="lineno"> 7011</span>  }</div>
<div class="line"><a name="l07012"></a><span class="lineno"> 7012</span>  in += jump_in;</div>
<div class="line"><a name="l07013"></a><span class="lineno"> 7013</span>  out += jump_out;</div>
<div class="line"><a name="l07014"></a><span class="lineno"> 7014</span>  }</div>
<div class="line"><a name="l07015"></a><span class="lineno"> 7015</span>  }</div>
<div class="line"><a name="l07016"></a><span class="lineno"> 7016</span>  }</div>
<div class="line"><a name="l07017"></a><span class="lineno"> 7017</span> }</div>
<div class="line"><a name="l07018"></a><span class="lineno"> 7018</span> </div>
<div class="line"><a name="l07019"></a><span class="lineno"> 7019</span> <span class="keywordtype">void</span> RtAudio :: byteSwapBuffer(<span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> samples, RTAUDIO_FORMAT format)</div>
<div class="line"><a name="l07020"></a><span class="lineno"> 7020</span> {</div>
<div class="line"><a name="l07021"></a><span class="lineno"> 7021</span>  <span class="keyword">register</span> <span class="keywordtype">char</span> val;</div>
<div class="line"><a name="l07022"></a><span class="lineno"> 7022</span>  <span class="keyword">register</span> <span class="keywordtype">char</span> *ptr;</div>
<div class="line"><a name="l07023"></a><span class="lineno"> 7023</span> </div>
<div class="line"><a name="l07024"></a><span class="lineno"> 7024</span>  ptr = buffer;</div>
<div class="line"><a name="l07025"></a><span class="lineno"> 7025</span>  <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#aed90b7824e62ea3d905544e5e30f94ce">RTAUDIO_SINT16</a>) {</div>
<div class="line"><a name="l07026"></a><span class="lineno"> 7026</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<samples; i++) {</div>
<div class="line"><a name="l07027"></a><span class="lineno"> 7027</span>  <span class="comment">// Swap 1st and 2nd bytes.</span></div>
<div class="line"><a name="l07028"></a><span class="lineno"> 7028</span>  val = *(ptr);</div>
<div class="line"><a name="l07029"></a><span class="lineno"> 7029</span>  *(ptr) = *(ptr+1);</div>
<div class="line"><a name="l07030"></a><span class="lineno"> 7030</span>  *(ptr+1) = val;</div>
<div class="line"><a name="l07031"></a><span class="lineno"> 7031</span> </div>
<div class="line"><a name="l07032"></a><span class="lineno"> 7032</span>  <span class="comment">// Increment 2 bytes.</span></div>
<div class="line"><a name="l07033"></a><span class="lineno"> 7033</span>  ptr += 2;</div>
<div class="line"><a name="l07034"></a><span class="lineno"> 7034</span>  }</div>
<div class="line"><a name="l07035"></a><span class="lineno"> 7035</span>  }</div>
<div class="line"><a name="l07036"></a><span class="lineno"> 7036</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#ad90d26eaa294b1da1eca5cfa3dde0f5d">RTAUDIO_SINT24</a> ||</div>
<div class="line"><a name="l07037"></a><span class="lineno"> 7037</span>  format == <a class="code" href="classRtAudio.html#a9fcbef59228f61c10547d1afb1d77e8b">RTAUDIO_SINT32</a> ||</div>
<div class="line"><a name="l07038"></a><span class="lineno"> 7038</span>  format == <a class="code" href="classRtAudio.html#a2ded91212b8ba19bd3de6965fca97e9a">RTAUDIO_FLOAT32</a>) {</div>
<div class="line"><a name="l07039"></a><span class="lineno"> 7039</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<samples; i++) {</div>
<div class="line"><a name="l07040"></a><span class="lineno"> 7040</span>  <span class="comment">// Swap 1st and 4th bytes.</span></div>
<div class="line"><a name="l07041"></a><span class="lineno"> 7041</span>  val = *(ptr);</div>
<div class="line"><a name="l07042"></a><span class="lineno"> 7042</span>  *(ptr) = *(ptr+3);</div>
<div class="line"><a name="l07043"></a><span class="lineno"> 7043</span>  *(ptr+3) = val;</div>
<div class="line"><a name="l07044"></a><span class="lineno"> 7044</span> </div>
<div class="line"><a name="l07045"></a><span class="lineno"> 7045</span>  <span class="comment">// Swap 2nd and 3rd bytes.</span></div>
<div class="line"><a name="l07046"></a><span class="lineno"> 7046</span>  ptr += 1;</div>
<div class="line"><a name="l07047"></a><span class="lineno"> 7047</span>  val = *(ptr);</div>
<div class="line"><a name="l07048"></a><span class="lineno"> 7048</span>  *(ptr) = *(ptr+1);</div>
<div class="line"><a name="l07049"></a><span class="lineno"> 7049</span>  *(ptr+1) = val;</div>
<div class="line"><a name="l07050"></a><span class="lineno"> 7050</span> </div>
<div class="line"><a name="l07051"></a><span class="lineno"> 7051</span>  <span class="comment">// Increment 4 bytes.</span></div>
<div class="line"><a name="l07052"></a><span class="lineno"> 7052</span>  ptr += 4;</div>
<div class="line"><a name="l07053"></a><span class="lineno"> 7053</span>  }</div>
<div class="line"><a name="l07054"></a><span class="lineno"> 7054</span>  }</div>
<div class="line"><a name="l07055"></a><span class="lineno"> 7055</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (format == <a class="code" href="classRtAudio.html#a1361636e13467c666b57eab77d42fa8f">RTAUDIO_FLOAT64</a>) {</div>
<div class="line"><a name="l07056"></a><span class="lineno"> 7056</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<samples; i++) {</div>
<div class="line"><a name="l07057"></a><span class="lineno"> 7057</span>  <span class="comment">// Swap 1st and 8th bytes</span></div>
<div class="line"><a name="l07058"></a><span class="lineno"> 7058</span>  val = *(ptr);</div>
<div class="line"><a name="l07059"></a><span class="lineno"> 7059</span>  *(ptr) = *(ptr+7);</div>
<div class="line"><a name="l07060"></a><span class="lineno"> 7060</span>  *(ptr+7) = val;</div>
<div class="line"><a name="l07061"></a><span class="lineno"> 7061</span> </div>
<div class="line"><a name="l07062"></a><span class="lineno"> 7062</span>  <span class="comment">// Swap 2nd and 7th bytes</span></div>
<div class="line"><a name="l07063"></a><span class="lineno"> 7063</span>  ptr += 1;</div>
<div class="line"><a name="l07064"></a><span class="lineno"> 7064</span>  val = *(ptr);</div>
<div class="line"><a name="l07065"></a><span class="lineno"> 7065</span>  *(ptr) = *(ptr+5);</div>
<div class="line"><a name="l07066"></a><span class="lineno"> 7066</span>  *(ptr+5) = val;</div>
<div class="line"><a name="l07067"></a><span class="lineno"> 7067</span> </div>
<div class="line"><a name="l07068"></a><span class="lineno"> 7068</span>  <span class="comment">// Swap 3rd and 6th bytes</span></div>
<div class="line"><a name="l07069"></a><span class="lineno"> 7069</span>  ptr += 1;</div>
<div class="line"><a name="l07070"></a><span class="lineno"> 7070</span>  val = *(ptr);</div>
<div class="line"><a name="l07071"></a><span class="lineno"> 7071</span>  *(ptr) = *(ptr+3);</div>
<div class="line"><a name="l07072"></a><span class="lineno"> 7072</span>  *(ptr+3) = val;</div>
<div class="line"><a name="l07073"></a><span class="lineno"> 7073</span> </div>
<div class="line"><a name="l07074"></a><span class="lineno"> 7074</span>  <span class="comment">// Swap 4th and 5th bytes</span></div>
<div class="line"><a name="l07075"></a><span class="lineno"> 7075</span>  ptr += 1;</div>
<div class="line"><a name="l07076"></a><span class="lineno"> 7076</span>  val = *(ptr);</div>
<div class="line"><a name="l07077"></a><span class="lineno"> 7077</span>  *(ptr) = *(ptr+1);</div>
<div class="line"><a name="l07078"></a><span class="lineno"> 7078</span>  *(ptr+1) = val;</div>
<div class="line"><a name="l07079"></a><span class="lineno"> 7079</span> </div>
<div class="line"><a name="l07080"></a><span class="lineno"> 7080</span>  <span class="comment">// Increment 8 bytes.</span></div>
<div class="line"><a name="l07081"></a><span class="lineno"> 7081</span>  ptr += 8;</div>
<div class="line"><a name="l07082"></a><span class="lineno"> 7082</span>  }</div>
<div class="line"><a name="l07083"></a><span class="lineno"> 7083</span>  }</div>
<div class="line"><a name="l07084"></a><span class="lineno"> 7084</span> }</div>
<div class="line"><a name="l07085"></a><span class="lineno"> 7085</span> </div>
<div class="line"><a name="l07086"></a><span class="lineno"> 7086</span> </div>
<div class="line"><a name="l07087"></a><span class="lineno"> 7087</span> <span class="comment">// *************************************************** //</span></div>
<div class="line"><a name="l07088"></a><span class="lineno"> 7088</span> <span class="comment">//</span></div>
<div class="line"><a name="l07089"></a><span class="lineno"> 7089</span> <span class="comment">// RtError class definition.</span></div>
<div class="line"><a name="l07090"></a><span class="lineno"> 7090</span> <span class="comment">//</span></div>
<div class="line"><a name="l07091"></a><span class="lineno"> 7091</span> <span class="comment">// *************************************************** //</span></div>
<div class="line"><a name="l07092"></a><span class="lineno"> 7092</span> </div>
<div class="line"><a name="l07093"></a><span class="lineno"><a class="code" href="classRtError.html#af95201c80b6210515d9a9cb98e2cec12"> 7093</a></span> <a class="code" href="classRtError.html#af95201c80b6210515d9a9cb98e2cec12" title="The constructor.">RtError :: RtError</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *p, <a class="code" href="classRtError.html#aed1dfac13d3d945df6f475bbb30216c4" title="Defined RtError types.">TYPE</a> tipe)</div>
<div class="line"><a name="l07094"></a><span class="lineno"> 7094</span> {</div>
<div class="line"><a name="l07095"></a><span class="lineno"> 7095</span>  type = tipe;</div>
<div class="line"><a name="l07096"></a><span class="lineno"> 7096</span>  strncpy(<a class="code" href="classRtError.html#ad979447f8813c369fd837afbd53c90fb">error_message</a>, p, 256);</div>
<div class="line"><a name="l07097"></a><span class="lineno"> 7097</span> }</div>
<div class="line"><a name="l07098"></a><span class="lineno"> 7098</span> </div>
<div class="line"><a name="l07099"></a><span class="lineno"><a class="code" href="classRtError.html#a2d373a68c443306392cf3336d62261fa"> 7099</a></span> <a class="code" href="classRtError.html#a2d373a68c443306392cf3336d62261fa" title="The destructor.">RtError :: ~RtError</a>()</div>
<div class="line"><a name="l07100"></a><span class="lineno"> 7100</span> {</div>
<div class="line"><a name="l07101"></a><span class="lineno"> 7101</span> }</div>
<div class="line"><a name="l07102"></a><span class="lineno"> 7102</span> </div>
<div class="line"><a name="l07103"></a><span class="lineno"><a class="code" href="classRtError.html#a6698395c119f5beacd5d3dbc72f370a6"> 7103</a></span> <span class="keywordtype">void</span> <a class="code" href="classRtError.html#a6698395c119f5beacd5d3dbc72f370a6" title="Prints "thrown" error message to stdout.">RtError :: printMessage</a>()</div>
<div class="line"><a name="l07104"></a><span class="lineno"> 7104</span> {</div>
<div class="line"><a name="l07105"></a><span class="lineno"> 7105</span>  printf(<span class="stringliteral">"\n%s\n\n"</span>, <a class="code" href="classRtError.html#ad979447f8813c369fd837afbd53c90fb">error_message</a>);</div>
<div class="line"><a name="l07106"></a><span class="lineno"> 7106</span> }</div>
<div class="line"><a name="l07107"></a><span class="lineno"> 7107</span> </div>
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