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<h1>itkFFTWCommon.h</h1><a href="itkFFTWCommon_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*=========================================================================</span>
<a name="l00002"></a>00002 <span class="comment"></span>
<a name="l00003"></a>00003 <span class="comment"> Program: Insight Segmentation & Registration Toolkit</span>
<a name="l00004"></a>00004 <span class="comment"> Module: $RCSfile: itkFFTWCommon.h,v $</span>
<a name="l00005"></a>00005 <span class="comment"> Language: C++</span>
<a name="l00006"></a>00006 <span class="comment"> Date: $Date: 2008-12-21 19:13:11 $</span>
<a name="l00007"></a>00007 <span class="comment"> Version: $Revision: 1.8 $</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> Copyright (c) Insight Software Consortium. All rights reserved.</span>
<a name="l00010"></a>00010 <span class="comment"> See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.</span>
<a name="l00011"></a>00011 <span class="comment"></span>
<a name="l00012"></a>00012 <span class="comment"> This software is distributed WITHOUT ANY WARRANTY; without even </span>
<a name="l00013"></a>00013 <span class="comment"> the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR </span>
<a name="l00014"></a>00014 <span class="comment"> PURPOSE. See the above copyright notices for more information.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment">=========================================================================*/</span>
<a name="l00017"></a>00017 <span class="preprocessor">#ifndef __itkFFTWCommon_h</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define __itkFFTWCommon_h</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span>
<a name="l00020"></a>00020 <span class="preprocessor">#if defined(USE_FFTWF) || defined(USE_FFTWD)</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#include "fftw3.h"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#endif</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span>
<a name="l00024"></a>00024 <span class="keyword">namespace </span>itk
<a name="l00025"></a>00025 {
<a name="l00026"></a><a class="code" href="namespaceitk_1_1fftw.html">00026</a> <span class="keyword">namespace </span>fftw
<a name="l00027"></a>00027 {
<a name="l00032"></a>00032 <span class="keyword">template</span> <<span class="keyword">typename</span> TPixel>
<a name="l00033"></a><a class="code" href="classitk_1_1fftw_1_1Proxy.html">00033</a> <span class="keyword">class </span><a class="code" href="classitk_1_1fftw_1_1Proxy.html">Proxy</a>
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035 <span class="comment">// empty -- only double and float specializations work</span>
<a name="l00036"></a>00036 <span class="keyword">protected</span>:
<a name="l00037"></a><a class="code" href="classitk_1_1fftw_1_1Proxy.html#f63a559763f257d47ebfdc486939d58e">00037</a> <a class="code" href="classitk_1_1fftw_1_1Proxy.html#f63a559763f257d47ebfdc486939d58e">Proxy</a>() {};
<a name="l00038"></a><a class="code" href="classitk_1_1fftw_1_1Proxy.html#bc30b1c86a2d9a045d4301bdafea2560">00038</a> <a class="code" href="classitk_1_1fftw_1_1Proxy.html#bc30b1c86a2d9a045d4301bdafea2560">~Proxy</a>() {};
<a name="l00039"></a>00039 };
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="preprocessor">#if defined(USE_FFTWF)</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span>
<a name="l00044"></a>00044 <span class="keyword">template</span> <>
<a name="l00045"></a>00045 <span class="keyword">class </span>Proxy<float>
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 <span class="keyword">public</span>:
<a name="l00048"></a>00048 <span class="keyword">typedef</span> <span class="keywordtype">float</span> PixelType;
<a name="l00049"></a>00049 <span class="keyword">typedef</span> fftwf_complex ComplexType;
<a name="l00050"></a>00050 <span class="keyword">typedef</span> fftwf_plan PlanType;
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keyword">static</span> PlanType Plan_dft_c2r_1d(<span class="keywordtype">int</span> n,
<a name="l00053"></a>00053 ComplexType *in,
<a name="l00054"></a>00054 PixelType *out,
<a name="l00055"></a>00055 <span class="keywordtype">unsigned</span> flags)
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057 <span class="keywordflow">return</span> fftwf_plan_dft_c2r_1d(n,in,out,flags);
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059 <span class="keyword">static</span> PlanType Plan_dft_c2r_2d(<span class="keywordtype">int</span> nx,
<a name="l00060"></a>00060 <span class="keywordtype">int</span> ny,
<a name="l00061"></a>00061 ComplexType *in,
<a name="l00062"></a>00062 PixelType *out,
<a name="l00063"></a>00063 <span class="keywordtype">unsigned</span> flags)
<a name="l00064"></a>00064 {
<a name="l00065"></a>00065 <span class="keywordflow">return</span> fftwf_plan_dft_c2r_2d(nx,ny,in,out,flags);
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067 <span class="keyword">static</span> PlanType Plan_dft_c2r_3d(<span class="keywordtype">int</span> nx,
<a name="l00068"></a>00068 <span class="keywordtype">int</span> ny,
<a name="l00069"></a>00069 <span class="keywordtype">int</span> nz,
<a name="l00070"></a>00070 ComplexType *in,
<a name="l00071"></a>00071 PixelType *out,
<a name="l00072"></a>00072 <span class="keywordtype">unsigned</span> flags)
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 <span class="keywordflow">return</span> fftwf_plan_dft_c2r_3d(nx,ny,nz,in,out,flags);
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076 <span class="keyword">static</span> PlanType Plan_dft_c2r(<span class="keywordtype">int</span> rank,
<a name="l00077"></a>00077 <span class="keyword">const</span> <span class="keywordtype">int</span> *n,
<a name="l00078"></a>00078 ComplexType *in,
<a name="l00079"></a>00079 PixelType *out,
<a name="l00080"></a>00080 <span class="keywordtype">unsigned</span> flags)
<a name="l00081"></a>00081 {
<a name="l00082"></a>00082 <span class="keywordflow">return</span> fftwf_plan_dft_c2r(rank,n,in,out,flags);
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keyword">static</span> PlanType Plan_dft_r2c_1d(<span class="keywordtype">int</span> n,
<a name="l00086"></a>00086 PixelType *in,
<a name="l00087"></a>00087 ComplexType *out,
<a name="l00088"></a>00088 <span class="keywordtype">unsigned</span> flags)
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 <span class="keywordflow">return</span> fftwf_plan_dft_r2c_1d(n,in,out,flags);
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092 <span class="keyword">static</span> PlanType Plan_dft_r2c_2d(<span class="keywordtype">int</span> nx,
<a name="l00093"></a>00093 <span class="keywordtype">int</span> ny,
<a name="l00094"></a>00094 PixelType *in,
<a name="l00095"></a>00095 ComplexType *out,
<a name="l00096"></a>00096 <span class="keywordtype">unsigned</span> flags)
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098 <span class="keywordflow">return</span> fftwf_plan_dft_r2c_2d(nx,ny,in,out,flags);
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100 <span class="keyword">static</span> PlanType Plan_dft_r2c_3d(<span class="keywordtype">int</span> nx,
<a name="l00101"></a>00101 <span class="keywordtype">int</span> ny,
<a name="l00102"></a>00102 <span class="keywordtype">int</span> nz,
<a name="l00103"></a>00103 PixelType *in,
<a name="l00104"></a>00104 ComplexType *out,
<a name="l00105"></a>00105 <span class="keywordtype">unsigned</span> flags)
<a name="l00106"></a>00106 {
<a name="l00107"></a>00107 <span class="keywordflow">return</span> fftwf_plan_dft_r2c_3d(nx,ny,nz,in,out,flags);
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109 <span class="keyword">static</span> PlanType Plan_dft_r2c(<span class="keywordtype">int</span> rank,
<a name="l00110"></a>00110 <span class="keyword">const</span> <span class="keywordtype">int</span> *n,
<a name="l00111"></a>00111 PixelType *in,
<a name="l00112"></a>00112 ComplexType *out,
<a name="l00113"></a>00113 <span class="keywordtype">unsigned</span> flags)
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 <span class="keywordflow">return</span> fftwf_plan_dft_r2c(rank,n,in,out,flags);
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="keyword">static</span> <span class="keywordtype">void</span> Execute(PlanType p)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 fftwf_execute(p);
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 <span class="keyword">static</span> <span class="keywordtype">void</span> DestroyPlan(PlanType p)
<a name="l00123"></a>00123 {
<a name="l00124"></a>00124 fftwf_destroy_plan(p);
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126 };
<a name="l00127"></a>00127 <span class="preprocessor">#endif // USE_FFTWF</span>
<a name="l00128"></a>00128 <span class="preprocessor"></span><span class="preprocessor">#if defined(USE_FFTWD)</span>
<a name="l00129"></a>00129 <span class="preprocessor"></span><span class="keyword">template</span> <>
<a name="l00130"></a>00130 <span class="keyword">class </span>Proxy<double>
<a name="l00131"></a>00131 {
<a name="l00132"></a>00132 <span class="keyword">public</span>:
<a name="l00133"></a>00133 <span class="keyword">typedef</span> <span class="keywordtype">double</span> PixelType;
<a name="l00134"></a>00134 <span class="keyword">typedef</span> fftw_complex ComplexType;
<a name="l00135"></a>00135 <span class="keyword">typedef</span> fftw_plan PlanType;
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="keyword">static</span> PlanType Plan_dft_c2r_1d(<span class="keywordtype">int</span> n,
<a name="l00138"></a>00138 ComplexType *in,
<a name="l00139"></a>00139 PixelType *out,
<a name="l00140"></a>00140 <span class="keywordtype">unsigned</span> flags)
<a name="l00141"></a>00141 {
<a name="l00142"></a>00142 <span class="keywordflow">return</span> fftw_plan_dft_c2r_1d(n,in,out,flags);
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144 <span class="keyword">static</span> PlanType Plan_dft_c2r_2d(<span class="keywordtype">int</span> nx,
<a name="l00145"></a>00145 <span class="keywordtype">int</span> ny,
<a name="l00146"></a>00146 ComplexType *in,
<a name="l00147"></a>00147 PixelType *out,
<a name="l00148"></a>00148 <span class="keywordtype">unsigned</span> flags)
<a name="l00149"></a>00149 {
<a name="l00150"></a>00150 <span class="keywordflow">return</span> fftw_plan_dft_c2r_2d(nx,ny,in,out,flags);
<a name="l00151"></a>00151 }
<a name="l00152"></a>00152 <span class="keyword">static</span> PlanType Plan_dft_c2r_3d(<span class="keywordtype">int</span> nx,
<a name="l00153"></a>00153 <span class="keywordtype">int</span> ny,
<a name="l00154"></a>00154 <span class="keywordtype">int</span> nz,
<a name="l00155"></a>00155 ComplexType *in,
<a name="l00156"></a>00156 PixelType *out,
<a name="l00157"></a>00157 <span class="keywordtype">unsigned</span> flags)
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 <span class="keywordflow">return</span> fftw_plan_dft_c2r_3d(nx,ny,nz,in,out,flags);
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161 <span class="keyword">static</span> PlanType Plan_dft_c2r(<span class="keywordtype">int</span> rank,
<a name="l00162"></a>00162 <span class="keyword">const</span> <span class="keywordtype">int</span> *n,
<a name="l00163"></a>00163 ComplexType *in,
<a name="l00164"></a>00164 PixelType *out,
<a name="l00165"></a>00165 <span class="keywordtype">unsigned</span> flags)
<a name="l00166"></a>00166 {
<a name="l00167"></a>00167 <span class="keywordflow">return</span> fftw_plan_dft_c2r(rank,n,in,out,flags);
<a name="l00168"></a>00168 }
<a name="l00169"></a>00169
<a name="l00170"></a>00170 <span class="keyword">static</span> PlanType Plan_dft_r2c_1d(<span class="keywordtype">int</span> n,
<a name="l00171"></a>00171 PixelType *in,
<a name="l00172"></a>00172 ComplexType *out,
<a name="l00173"></a>00173 <span class="keywordtype">unsigned</span> flags)
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175 <span class="keywordflow">return</span> fftw_plan_dft_r2c_1d(n,in,out,flags);
<a name="l00176"></a>00176 }
<a name="l00177"></a>00177 <span class="keyword">static</span> PlanType Plan_dft_r2c_2d(<span class="keywordtype">int</span> nx,
<a name="l00178"></a>00178 <span class="keywordtype">int</span> ny,
<a name="l00179"></a>00179 PixelType *in,
<a name="l00180"></a>00180 ComplexType *out,
<a name="l00181"></a>00181 <span class="keywordtype">unsigned</span> flags)
<a name="l00182"></a>00182 {
<a name="l00183"></a>00183 <span class="keywordflow">return</span> fftw_plan_dft_r2c_2d(nx,ny,in,out,flags);
<a name="l00184"></a>00184 }
<a name="l00185"></a>00185 <span class="keyword">static</span> PlanType Plan_dft_r2c_3d(<span class="keywordtype">int</span> nx,
<a name="l00186"></a>00186 <span class="keywordtype">int</span> ny,
<a name="l00187"></a>00187 <span class="keywordtype">int</span> nz,
<a name="l00188"></a>00188 PixelType *in,
<a name="l00189"></a>00189 ComplexType *out,
<a name="l00190"></a>00190 <span class="keywordtype">unsigned</span> flags)
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 <span class="keywordflow">return</span> fftw_plan_dft_r2c_3d(nx,ny,nz,in,out,flags);
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194 <span class="keyword">static</span> PlanType Plan_dft_r2c(<span class="keywordtype">int</span> rank,
<a name="l00195"></a>00195 <span class="keyword">const</span> <span class="keywordtype">int</span> *n,
<a name="l00196"></a>00196 PixelType *in,
<a name="l00197"></a>00197 ComplexType *out,
<a name="l00198"></a>00198 <span class="keywordtype">unsigned</span> flags)
<a name="l00199"></a>00199 {
<a name="l00200"></a>00200 <span class="keywordflow">return</span> fftw_plan_dft_r2c(rank,n,in,out,flags);
<a name="l00201"></a>00201 }
<a name="l00202"></a>00202 <span class="keyword">static</span> <span class="keywordtype">void</span> Execute(PlanType p)
<a name="l00203"></a>00203 {
<a name="l00204"></a>00204 fftw_execute(p);
<a name="l00205"></a>00205 }
<a name="l00206"></a>00206 <span class="keyword">static</span> <span class="keywordtype">void</span> DestroyPlan(PlanType p)
<a name="l00207"></a>00207 {
<a name="l00208"></a>00208 fftw_destroy_plan(p);
<a name="l00209"></a>00209 }
<a name="l00210"></a>00210 };
<a name="l00211"></a>00211 <span class="preprocessor">#endif</span>
<a name="l00212"></a>00212 <span class="preprocessor"></span>}
<a name="l00213"></a>00213 }
<a name="l00214"></a>00214 <span class="preprocessor">#endif</span>
<a name="l00215"></a>00215 <span class="preprocessor"></span>
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