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annotate liboctave/numeric/oct-fftw.h @ 21603:37cbdf7bffa9

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Add fftwf_version (bug #45659) * toplev.cc (F__octave_config_info__): New field, fftwf_version. * oct-fftw.cc, oct-fftw.h (octave_fftwf_version): New function.
author mmuetzel <markus.muetzel@gmx.de>
date Mon, 11 Apr 2016 10:45:17 +0200
parents 184b85b31e03
children bac0d6f07a3e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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3 Copyright (C) 2001-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe]
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
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10 option) any later version.
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11
adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe]
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe]
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21 */
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22
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23 #if ! defined (octave_oct_fftw_h)
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24 #define octave_oct_fftw_h 1
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25
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26 #include "octave-config.h"
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27
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28 #include <cstddef>
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30 #include "oct-cmplx.h"
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31 #include "dim-vector.h"
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32
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33 class
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34 OCTAVE_API
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35 octave_fftw_planner
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36 {
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37 protected:
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38
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39 octave_fftw_planner (void);
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40
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41 public:
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42
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43 ~octave_fftw_planner (void);
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44
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45 enum FftwMethod
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46 {
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47 UNKNOWN = -1,
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48 ESTIMATE,
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49 MEASURE,
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50 PATIENT,
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51 EXHAUSTIVE,
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52 HYBRID
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53 };
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54
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55 static bool instance_ok (void);
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56
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57 static void *
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58 create_plan (int dir, const int rank, const dim_vector dims,
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59 octave_idx_type howmany, octave_idx_type stride,
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60 octave_idx_type dist, const Complex *in,
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61 Complex *out)
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62 {
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63 return instance_ok ()
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64 ? instance->do_create_plan (dir, rank, dims, howmany, stride,
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65 dist, in, out)
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66 : 0;
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67 }
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68
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69 static void *
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70 create_plan (const int rank, const dim_vector dims,
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71 octave_idx_type howmany, octave_idx_type stride,
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72 octave_idx_type dist, const double *in, Complex *out)
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73 {
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74 return instance_ok ()
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75 ? instance->do_create_plan (rank, dims, howmany, stride, dist,
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76 in, out)
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77 : 0;
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78 }
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79
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80 static FftwMethod method (void)
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81 {
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82 static FftwMethod dummy;
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83
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84 return instance_ok () ? instance->do_method () : dummy;
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85 }
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86
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87 static FftwMethod method (FftwMethod _meth)
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88 {
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89 static FftwMethod dummy;
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90
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91 return instance_ok () ? instance->do_method (_meth) : dummy;
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92 }
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93
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94 static void threads (int nt);
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95
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96 static int threads (void)
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97 {
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98 return instance_ok () ? instance->nthreads : 0;
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99 }
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100
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101 private:
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102
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103 // No copying!
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104
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105 octave_fftw_planner (const octave_fftw_planner&);
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106
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107 octave_fftw_planner& operator = (const octave_fftw_planner&);
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108
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109 static octave_fftw_planner *instance;
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110
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111 static void cleanup_instance (void) { delete instance; instance = 0; }
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112
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113 void *
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114 do_create_plan (int dir, const int rank, const dim_vector dims,
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115 octave_idx_type howmany, octave_idx_type stride,
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116 octave_idx_type dist, const Complex *in,
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117 Complex *out);
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118
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119 void *
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120 do_create_plan (const int rank, const dim_vector dims,
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121 octave_idx_type howmany, octave_idx_type stride,
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122 octave_idx_type dist, const double *in, Complex *out);
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123
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124 FftwMethod do_method (void);
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125
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126 FftwMethod do_method (FftwMethod _meth);
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127
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128 FftwMethod meth;
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129
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130 // FIXME: perhaps this should be split into two classes?
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131
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132 // Plan for fft and ifft of complex values
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133 void *plan[2];
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134
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135 // dist
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136 octave_idx_type d[2];
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137
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138 // stride
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139 octave_idx_type s[2];
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140
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141 // rank
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142 int r[2];
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143
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144 // howmany
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145 octave_idx_type h[2];
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146
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147 // dims
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148 dim_vector n[2];
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149
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150 bool simd_align[2];
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151 bool inplace[2];
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152
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153 // Plan for fft of real values
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154 void *rplan;
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155
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156 // dist
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157 octave_idx_type rd;
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158
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159 // stride
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160 octave_idx_type rs;
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161
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162 // rank
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163 int rr;
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164
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165 // howmany
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166 octave_idx_type rh;
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167
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168 // dims
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169 dim_vector rn;
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170
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171 bool rsimd_align;
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172
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173 // number of threads. Always 1 unless compiled with Multi-threading
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174 // support.
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175 int nthreads;
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176 };
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177
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178 class
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179 OCTAVE_API
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180 octave_float_fftw_planner
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181 {
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182 protected:
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183
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184 octave_float_fftw_planner (void);
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185
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186 public:
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187
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188 ~octave_float_fftw_planner (void);
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189
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190 enum FftwMethod
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191 {
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192 UNKNOWN = -1,
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193 ESTIMATE,
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194 MEASURE,
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195 PATIENT,
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196 EXHAUSTIVE,
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197 HYBRID
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198 };
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199
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200 static bool instance_ok (void);
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201
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202 static void *
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203 create_plan (int dir, const int rank, const dim_vector dims,
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204 octave_idx_type howmany, octave_idx_type stride,
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205 octave_idx_type dist, const FloatComplex *in,
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206 FloatComplex *out)
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207 {
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208 return instance_ok ()
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209 ? instance->do_create_plan (dir, rank, dims, howmany, stride,
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210 dist, in, out)
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211 : 0;
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212 }
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213
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214 static void *
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215 create_plan (const int rank, const dim_vector dims,
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216 octave_idx_type howmany, octave_idx_type stride,
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217 octave_idx_type dist, const float *in, FloatComplex *out)
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218 {
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219 return instance_ok ()
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220 ? instance->do_create_plan (rank, dims, howmany, stride, dist,
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221 in, out)
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222 : 0;
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223 }
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224
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225 static FftwMethod method (void)
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226 {
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227 static FftwMethod dummy;
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228
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229 return instance_ok () ? instance->do_method () : dummy;
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230 }
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231
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232 static FftwMethod method (FftwMethod _meth)
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233 {
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234 static FftwMethod dummy;
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235
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236 return instance_ok () ? instance->do_method (_meth) : dummy;
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237 }
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238
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239 static void threads (int nt);
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240
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241 static int threads (void)
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242 {
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243 return instance_ok () ? instance->nthreads : 0;
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244 }
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245
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246 private:
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247
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248 // No copying!
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249
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250 octave_float_fftw_planner (const octave_float_fftw_planner&);
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251
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252 octave_float_fftw_planner& operator = (const octave_float_fftw_planner&);
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253
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254 static octave_float_fftw_planner *instance;
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255
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256 static void cleanup_instance (void) { delete instance; instance = 0; }
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257
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258 void *
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259 do_create_plan (int dir, const int rank, const dim_vector dims,
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260 octave_idx_type howmany, octave_idx_type stride,
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261 octave_idx_type dist, const FloatComplex *in,
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262 FloatComplex *out);
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263
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264 void *
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265 do_create_plan (const int rank, const dim_vector dims,
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266 octave_idx_type howmany, octave_idx_type stride,
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267 octave_idx_type dist, const float *in, FloatComplex *out);
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268
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269 FftwMethod do_method (void);
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270
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271 FftwMethod do_method (FftwMethod _meth);
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272
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273 FftwMethod meth;
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274
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275 // FIXME: perhaps this should be split into two classes?
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276
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277 // Plan for fft and ifft of complex values
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278 void *plan[2];
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279
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280 // dist
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281 octave_idx_type d[2];
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282
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283 // stride
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284 octave_idx_type s[2];
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285
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286 // rank
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287 int r[2];
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288
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289 // howmany
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290 octave_idx_type h[2];
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291
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292 // dims
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293 dim_vector n[2];
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294
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295 bool simd_align[2];
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296 bool inplace[2];
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297
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298 // Plan for fft of real values
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299 void *rplan;
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300
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301 // dist
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302 octave_idx_type rd;
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303
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304 // stride
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305 octave_idx_type rs;
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306
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307 // rank
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308 int rr;
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309
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310 // howmany
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311 octave_idx_type rh;
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312
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313 // dims
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314 dim_vector rn;
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315
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316 bool rsimd_align;
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317
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318 // number of threads. Always 1 unless compiled with Multi-threading
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319 // support.
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320 int nthreads;
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321 };
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322
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323 class
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324 OCTAVE_API
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325 octave_fftw
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326 {
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327 public:
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328
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329 static int fft (const double *in, Complex *out, size_t npts,
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330 size_t nsamples = 1, octave_idx_type stride = 1,
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331 octave_idx_type dist = -1);
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332 static int fft (const Complex *in, Complex *out, size_t npts,
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333 size_t nsamples = 1, octave_idx_type stride = 1,
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334 octave_idx_type dist = -1);
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335 static int ifft (const Complex *in, Complex *out, size_t npts,
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336 size_t nsamples = 1, octave_idx_type stride = 1,
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337 octave_idx_type dist = -1);
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338
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339 static int fftNd (const double*, Complex*, const int, const dim_vector &);
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340 static int fftNd (const Complex*, Complex*, const int,
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341 const dim_vector &);
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342 static int ifftNd (const Complex*, Complex*, const int,
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343 const dim_vector &);
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344
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345 static int fft (const float *in, FloatComplex *out, size_t npts,
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346 size_t nsamples = 1, octave_idx_type stride = 1,
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347 octave_idx_type dist = -1);
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348 static int fft (const FloatComplex *in, FloatComplex *out, size_t npts,
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349 size_t nsamples = 1, octave_idx_type stride = 1,
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350 octave_idx_type dist = -1);
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351 static int ifft (const FloatComplex *in, FloatComplex *out, size_t npts,
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352 size_t nsamples = 1, octave_idx_type stride = 1,
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353 octave_idx_type dist = -1);
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354
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355 static int fftNd (const float*, FloatComplex*, const int, const dim_vector &);
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356 static int fftNd (const FloatComplex*, FloatComplex*, const int,
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357 const dim_vector &);
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358 static int ifftNd (const FloatComplex*, FloatComplex*, const int,
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359 const dim_vector &);
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360
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361 private:
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362 octave_fftw (void);
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363 octave_fftw (const octave_fftw&);
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364 octave_fftw& operator = (const octave_fftw&);
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365 };
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366
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367 extern OCTAVE_API std::string octave_fftw_version (void);
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368 extern OCTAVE_API std::string octave_fftwf_version (void);
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369
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370 #endif