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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
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<div class="title">IFFT_fftw3.cxx</div> </div>
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<a href="IFFT__fftw3_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) 2001-2004 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="preprocessor">#include "<a class="code" href="IFFT__fftw3_8hxx.html">IFFT_fftw3.hxx</a>"</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "<a class="code" href="SpecTypeFlags_8hxx.html">SpecTypeFlags.hxx</a>"</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="Audio_8hxx.html">Audio.hxx</a>"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="Spectrum_8hxx.html">Spectrum.hxx</a>"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="ProcessingFactory_8hxx.html">ProcessingFactory.hxx</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <fftw3.h></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span>CLAM {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span>Hidden</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * <a class="code" href="namespaceCLAM_1_1Hidden.html#ab6d3d284c567f8d6be7be419620bc9a0">metadata</a>[] = {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="stringliteral">"key"</span>, <span class="stringliteral">"IFFT_fftw3"</span>,</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="stringliteral">"category"</span>, <span class="stringliteral">"Synthesis"</span>,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="stringliteral">"description"</span>, <span class="stringliteral">"IFFT_fftw3"</span>,</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  0</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  };</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">static</span> FactoryRegistrator<ProcessingFactory, IFFT_fftw3> <a class="code" href="namespaceCLAM_1_1Hidden.html#ad709b2bf7ea595b7f6613c3058471b10">reg</a> = <a class="code" href="namespaceCLAM_1_1Hidden.html#ab6d3d284c567f8d6be7be419620bc9a0">metadata</a>;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> }</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">struct </span>IFFT_fftw3::Implementation</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> {</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  Implementation(<span class="keywordtype">unsigned</span> size)</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  {</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// Special malloc which aligns to SIMD segment boundaries</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  _complexInput = (fftw_complex*) fftw_malloc(<span class="keyword">sizeof</span>(fftw_complex) * size);</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  _realOutput = (<span class="keywordtype">double</span>*) fftw_malloc(<span class="keyword">sizeof</span>(<span class="keywordtype">double</span>) * size);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  fftw_import_system_wisdom();</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  _plan = fftw_plan_dft_c2r_1d(size, _complexInput, _realOutput, FFTW_ESTIMATE);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  ~Implementation()</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  fftw_destroy_plan(_plan);</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  fftw_free(_realOutput);</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  fftw_free(_complexInput);</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>  fftw_plan _plan;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  fftw_complex * _complexInput;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">double</span> * _realOutput;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> };</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a name="l00066"></a><span class="lineno"><a class="code" href="classCLAM_1_1IFFT__fftw3.html#a689d6826a8f0fc64951be2ea2e550d85"> 66</a></span> <a class="code" href="classCLAM_1_1IFFT__fftw3.html#a689d6826a8f0fc64951be2ea2e550d85">IFFT_fftw3::IFFT_fftw3</a>(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1IFFTConfig.html" title="Config class for the IFFT Processing.">IFFTConfig</a> &c)</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  : _fftw3(0)</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> { </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="classCLAM_1_1Processing.html#a586222b159a5b27b5bbb830a125fccc0" title="Configuration change method.">Configure</a>(c);</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> };</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keywordtype">bool</span> IFFT_fftw3::ConcreteConfigure(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1ProcessingConfig.html" title="This is an abstract class which serves as interface for configuration classes used as processing obje...">ProcessingConfig</a>& c)</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="classCLAM_1_1Processing.html#afc32b9790688f2875b42e4ab169389c6" title="Helper template to convert a reference to a ProcessingConfig to the concrete ProcessingConfig specifi...">CopyAsConcreteConfig</a>(<a class="code" href="classCLAM_1_1IFFT__base.html#acf8c732d3b0d32549c3bc8de683fb3ed" title="IFFT Configuration.">mConfig</a>, c);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="classCLAM_1_1IFFT__base.html#a218a446047674b751ce8b57c4ceec292" title="IFFT size.">mSize</a> = <a class="code" href="classCLAM_1_1IFFT__base.html#acf9621c470e93902a895a3ad2c117ab2a751c907e8e60ac3464e343f41d21d498">CLAM_DEFAULT_IFFT_SIZE</a>;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (<a class="code" href="classCLAM_1_1IFFT__base.html#acf8c732d3b0d32549c3bc8de683fb3ed" title="IFFT Configuration.">mConfig</a>.HasAudioSize()) {</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a> (<a class="code" href="classCLAM_1_1IFFT__base.html#acf8c732d3b0d32549c3bc8de683fb3ed" title="IFFT Configuration.">mConfig</a>.GetAudioSize()>=0,<span class="stringliteral">"Wrong (negative) Size in IFFT Configuration."</span>);</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="classCLAM_1_1IFFT__base.html#a218a446047674b751ce8b57c4ceec292" title="IFFT size.">mSize</a> = <a class="code" href="classCLAM_1_1IFFT__base.html#acf8c732d3b0d32549c3bc8de683fb3ed" title="IFFT Configuration.">mConfig</a>.GetAudioSize(); </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>  <a class="code" href="classCLAM_1_1IFFT__base.html#a7221542660c8432e7169e53af5fa7315">mOutput</a>.<a class="code" href="classCLAM_1_1OutPort.html#a5592a7c1c164f1f082d11c714426d665">SetSize</a>( mSize );</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="classCLAM_1_1IFFT__base.html#a7221542660c8432e7169e53af5fa7315">mOutput</a>.<a class="code" href="classCLAM_1_1OutPort.html#a7d42dd092e236bc96407860f03a27ad6">SetHop</a>( mSize );</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  mState=sOther;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  SetupMemory();</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> }</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a name="l00088"></a><span class="lineno"><a class="code" href="classCLAM_1_1IFFT__fftw3.html#a44ea6045ab3f14d06a81c58824ffead5"> 88</a></span> <a class="code" href="classCLAM_1_1IFFT__fftw3.html#a44ea6045ab3f14d06a81c58824ffead5">IFFT_fftw3::~IFFT_fftw3</a>()</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> {</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  ReleaseMemory();</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> }</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="keywordtype">void</span> IFFT_fftw3::ReleaseMemory()</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> {</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (_fftw3) <span class="keyword">delete</span> _fftw3;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> }</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="keywordtype">void</span> IFFT_fftw3::SetupMemory()</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> {</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  ReleaseMemory();</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  _fftw3 = <span class="keyword">new</span> Implementation(mSize);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> }</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="keywordtype">void</span> IFFT_fftw3::CheckTypes(<span class="keyword">const</span> Spectrum& in, <span class="keyword">const</span> Audio &out)<span class="keyword"> const</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(out.HasBuffer(),<span class="stringliteral">"IFFT Do: Float attribute required for Audio object."</span>);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="Assert_8hxx.html#a68a9c4e4f74820dc00d42c9f1517ed5a" title="Marks the start of check code block that is tied to a CLAM_ASSERT and can be removed without affectin...">CLAM_BEGIN_CHECK</a></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// Input object checking</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (out.GetSize()!=<a class="code" href="classCLAM_1_1IFFT__base.html#a218a446047674b751ce8b57c4ceec292" title="IFFT size.">mSize</a>) { </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  std::stringstream ss;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  ss << <span class="stringliteral">"IFFT_fftw3::Do: Wrong size in IFFT Audio output\n"</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  << <span class="stringliteral">" Expected: "</span> << mSize*2+1 << <span class="stringliteral">", used "</span> << out.GetSize();</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(0,ss.str().c_str());</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> (in.GetSize() < mSize/2+1 ) { <span class="comment">// ALGORITHM DEPENDENT CHECKING</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  std::stringstream ss;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  ss << <span class="stringliteral">"IFFT_fftw3::Do: not enough memory in input Spectrum.\n"</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  << <span class="stringliteral">" Expected: "</span> << mSize/2+1 << <span class="stringliteral">", used "</span> << in.GetSize();</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(0,ss.str().c_str());</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <a class="code" href="Assert_8hxx.html#a14e6629e59c10336f68c8b401a0a52fa" title="Ends a block of code started by CLAM_BEGIN_CHECK.">CLAM_END_CHECK</a></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="comment">/*</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">void IFFT_fftw3::Attach(Spectrum &in, Audio& out)</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">{</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"> mInput.Attach(in);</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> mOutput.Attach(out);</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment">}</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a name="l00131"></a><span class="lineno"><a class="code" href="classCLAM_1_1IFFT__fftw3.html#a847b606d19455179957be4ab83ce6fed"> 131</a></span> <span class="keywordtype">bool</span> <a class="code" href="classCLAM_1_1IFFT__fftw3.html#a847b606d19455179957be4ab83ce6fed" title="Supervised-mode Do function.">IFFT_fftw3::Do</a>()</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> {</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">bool</span> toReturn = <a class="code" href="classCLAM_1_1IFFT__fftw3.html#a847b606d19455179957be4ab83ce6fed" title="Supervised-mode Do function.">Do</a>(<a class="code" href="classCLAM_1_1IFFT__base.html#a5630e83aebb169ac1fc724b84158df93">mInput</a>.<a class="code" href="classCLAM_1_1InPort.html#a65b352e2036d41db14bc71e789624f69">GetData</a>(),<a class="code" href="classCLAM_1_1IFFT__base.html#a7221542660c8432e7169e53af5fa7315">mOutput</a>.<a class="code" href="classCLAM_1_1AudioOutPort.html#a24e3bf6f40fb21fe10442c7ec0e845cf">GetAudio</a>());</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <a class="code" href="classCLAM_1_1IFFT__base.html#a5630e83aebb169ac1fc724b84158df93">mInput</a>.<a class="code" href="classCLAM_1_1InPort.html#a3399b6d0c1e3bb2c89b854200d1f7ce7">Consume</a>();</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <a class="code" href="classCLAM_1_1IFFT__base.html#a7221542660c8432e7169e53af5fa7315">mOutput</a>.<a class="code" href="classCLAM_1_1OutPort.html#ae7dcc3895d42d4b8fcbb2a8f7000fca6">Produce</a>();</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> toReturn;</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> };</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="classCLAM_1_1IFFT__fftw3.html#acb89169c202f35d2c0b3c0479d43d45d"> 140</a></span> <span class="keywordtype">bool</span> <a class="code" href="classCLAM_1_1IFFT__fftw3.html#af3d1320269c6b86536a185b2dcb18c65" title="Standard supervised-mode SetPrototypes function.">IFFT_fftw3::SetPrototypes</a>(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1Spectrum.html" title="Spectrum is a ProcessingData class that allows the following representations: Mag/Phase, Complex, Polar and Break Point Function (BPF).">Spectrum</a>& in, <span class="keyword">const</span> <a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a> &out)</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> {</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  CheckTypes(in,out);</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="structCLAM_1_1SpecTypeFlags.html" title="This class tells which formats are instantiated in a Spectrum.">SpecTypeFlags</a> flags; </div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  in.<a class="code" href="classCLAM_1_1Spectrum.html#a76982ace303280e5c28b73882c96299d" title="This is not just an accessor.">GetType</a>(flags);</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> (flags.<a class="code" href="structCLAM_1_1SpecTypeFlags.html#a3021fe5cf568638ad937d0355485d904">bComplex</a>)</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  mState=sComplex;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">else</span></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>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(flags.<a class="code" href="structCLAM_1_1SpecTypeFlags.html#aedacb48c8556cdbacd5245bb96eb64da">bPolar</a> || flags.<a class="code" href="structCLAM_1_1SpecTypeFlags.html#a635d79febbf6b206dca74c37b13a115a">bMagPhase</a> || flags.<a class="code" href="structCLAM_1_1SpecTypeFlags.html#a4559e57d9f2ed8a1b4f8f91e95117b20">bMagPhaseBPF</a>,<span class="stringliteral">"IFFT_fftw3: SetPrototypes(): No Spectrum Attributes!"</span>);</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  mState=sOther;</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">// TODO: Maybe should update the prototype in the port?</span></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>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> }</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a name="l00159"></a><span class="lineno"><a class="code" href="classCLAM_1_1IFFT__fftw3.html#a665c8e832e8cf71962c2258ccaeff610"> 159</a></span> <span class="keywordtype">bool</span> <a class="code" href="classCLAM_1_1IFFT__fftw3.html#a665c8e832e8cf71962c2258ccaeff610" title="Standard UnsetPrototypes function.">IFFT_fftw3::UnsetPrototypes</a>()</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> {</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  mState=sOther;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">return</span> <span class="keyword">true</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> </div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a name="l00166"></a><span class="lineno"><a class="code" href="classCLAM_1_1IFFT__fftw3.html#a8af4a008d44f89bc032ecdb09d496b9b"> 166</a></span> <span class="keywordtype">bool</span> <a class="code" href="classCLAM_1_1IFFT__fftw3.html#a847b606d19455179957be4ab83ce6fed" title="Supervised-mode Do function.">IFFT_fftw3::Do</a>( <span class="keyword">const</span> <a class="code" href="classCLAM_1_1Spectrum.html" title="Spectrum is a ProcessingData class that allows the following representations: Mag/Phase, Complex, Polar and Break Point Function (BPF).">Spectrum</a>& in, <a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a> &out)<span class="keyword"> const</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(<a class="code" href="classCLAM_1_1Processing.html#ab8b86869f09192ab1bcae5d1a3d3b4a9">IsRunning</a>() ,<span class="stringliteral">"IFFT_fftw3: Do(): Not in execution mode"</span>);</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(out.<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>() == <a class="code" href="classCLAM_1_1IFFT__base.html#a218a446047674b751ce8b57c4ceec292" title="IFFT size.">mSize</a>,</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="stringliteral">"Not proper IFFT output size"</span>);</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">if</span> (mState==sComplex)</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  ComplexToRIFFTW(in);</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  {</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  CheckTypes(in,out);</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  OtherToRIFFTW(in);</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  fftw_execute(_fftw3->_plan);</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> * outbuffer = out.GetBuffer().GetPtr();</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<<a class="code" href="classCLAM_1_1IFFT__base.html#a218a446047674b751ce8b57c4ceec292" title="IFFT size.">mSize</a>; i++)</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  outbuffer[i] = _fftw3->_realOutput[i];</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  out.SetSampleRate(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>(in.GetSpectralRange()*2));</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> }</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
<div class="line"><a name="l00188"></a><span class="lineno"><a class="code" href="classCLAM_1_1IFFT__fftw3.html#af3d1320269c6b86536a185b2dcb18c65"> 188</a></span> <span class="keywordtype">bool</span> <a class="code" href="classCLAM_1_1IFFT__fftw3.html#af3d1320269c6b86536a185b2dcb18c65" title="Standard supervised-mode SetPrototypes function.">IFFT_fftw3::SetPrototypes</a>()</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> {</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="comment">// @todo Check port prototypes, and set the state (or de</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">// backup state if disabled) acordingly.</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(<span class="keyword">false</span>,<span class="stringliteral">"IFFT_fftw3::SetPrototypes: Not implemented."</span>);</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> }</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="keyword">inline</span> <span class="keywordtype">void</span> IFFT_fftw3::ComplexToRIFFTW(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1Spectrum.html" title="Spectrum is a ProcessingData class that allows the following representations: Mag/Phase, Complex, Polar and Break Point Function (BPF).">Spectrum</a> &in)<span class="keyword"> const</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(in.HasComplexArray(), <span class="stringliteral">"Input spectrum has no complex array"</span>);</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keyword">const</span> <a class="code" href="classCLAM_1_1Array.html">Array<Complex></a> & inbuffer = in.GetComplexArray();</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(inbuffer.Size() == mSize/2+1, <span class="stringliteral">"IFFT_fftw3::ComplexToRIFFTW: sizes doesn't match."</span>);</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i< inbuffer.Size(); i++)</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  {</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  _fftw3->_complexInput[i][0] = inbuffer[i].Real()/<a class="code" href="classCLAM_1_1IFFT__base.html#a218a446047674b751ce8b57c4ceec292" title="IFFT size.">mSize</a>;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  _fftw3->_complexInput[i][1] = inbuffer[i].Imag()/<a class="code" href="classCLAM_1_1IFFT__base.html#a218a446047674b751ce8b57c4ceec292" title="IFFT size.">mSize</a>;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  }</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"> // TODO: Use this code for the r2r format</span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> ifftbuffer[0]=(*inbuffer)[0].Real()/mSize; // Real Values</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> ifftbuffer[mSize/2]=(*inbuffer)[mSize/2].Real()/mSize;</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> for (int i=1; i< mSize/2; i++) {</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"> ifftbuffer[i] = (*inbuffer)[i].Real()/mSize; </span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> ifftbuffer[mSize-i] = (*inbuffer)[i].Imag()/mSize;</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"> }</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment"> if (mSize&1)</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment"> ifftbuffer[mSize/2+1] = (*inbuffer)[mSize/2].Imag()/mSize;</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> }</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </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="keyword">inline</span> <span class="keywordtype">void</span> IFFT_fftw3::OtherToRIFFTW(<span class="keyword">const</span> Spectrum &in)<span class="keyword"> const</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">if</span> (in.HasComplexArray())</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>  ComplexToRIFFTW(in);</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span>;</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>  SpecTypeFlags flags;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  Spectrum spec = in;</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  spec.GetType(flags);</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  flags.bComplex=1;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  spec.SetTypeSynchronize(flags);</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  ComplexToRIFFTW(spec);</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> }</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> }</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
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