src/fftw/frc_14.c

   1 /*
   2  * Copyright (c) 1997-1999 Massachusetts Institute of Technology
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  *
  18  */
  19
  20 /* This file was automatically generated --- DO NOT EDIT */
  21 /* Generated on Tue May 18 13:54:38 EDT 1999 */
  22
  23 #include <fftw-int.h>
  24 #include <fftw.h>
  25
  26 /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -real2hc 14 */
  27
  28 /*
  29  * This function contains 62 FP additions, 36 FP multiplications,
  30  * (or, 62 additions, 36 multiplications, 0 fused multiply/add),
  31  * 22 stack variables, and 28 memory accesses
  32  */
  33 static const fftw_real K900968867 = FFTW_KONST(+0.900968867902419126236102319507445051165919162);
  34 static const fftw_real K222520933 = FFTW_KONST(+0.222520933956314404288902564496794759466355569);
  35 static const fftw_real K623489801 = FFTW_KONST(+0.623489801858733530525004884004239810632274731);
  36 static const fftw_real K433883739 = FFTW_KONST(+0.433883739117558120475768332848358754609990728);
  37 static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801);
  38 static const fftw_real K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519);
  39
  40 /*
  41  * Generator Id's :
  42  * $Id$
  43  * $Id$
  44  * $Id$
  45  */
  46
  47 void fftw_real2hc_14(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride)
  48 {
  49      fftw_real tmp3;
  50      fftw_real tmp37;
  51      fftw_real tmp6;
  52      fftw_real tmp31;
  53      fftw_real tmp23;
  54      fftw_real tmp28;
  55      fftw_real tmp20;
  56      fftw_real tmp29;
  57      fftw_real tmp13;
  58      fftw_real tmp34;
  59      fftw_real tmp9;
  60      fftw_real tmp32;
  61      fftw_real tmp16;
  62      fftw_real tmp35;
  63      fftw_real tmp1;
  64      fftw_real tmp2;
  65      ASSERT_ALIGNED_DOUBLE();
  66      tmp1 = input[0];
  67      tmp2 = input[7 * istride];
  68      tmp3 = tmp1 - tmp2;
  69      tmp37 = tmp1 + tmp2;
  70      {
  71           fftw_real tmp4;
  72           fftw_real tmp5;
  73           fftw_real tmp21;
  74           fftw_real tmp22;
  75           ASSERT_ALIGNED_DOUBLE();
  76           tmp4 = input[4 * istride];
  77           tmp5 = input[11 * istride];
  78           tmp6 = tmp4 - tmp5;
  79           tmp31 = tmp4 + tmp5;
  80           tmp21 = input[12 * istride];
  81           tmp22 = input[5 * istride];
  82           tmp23 = tmp21 - tmp22;
  83           tmp28 = tmp21 + tmp22;
  84      }
  85      {
  86           fftw_real tmp18;
  87           fftw_real tmp19;
  88           fftw_real tmp11;
  89           fftw_real tmp12;
  90           ASSERT_ALIGNED_DOUBLE();
  91           tmp18 = input[2 * istride];
  92           tmp19 = input[9 * istride];
  93           tmp20 = tmp18 - tmp19;
  94           tmp29 = tmp18 + tmp19;
  95           tmp11 = input[6 * istride];
  96           tmp12 = input[13 * istride];
  97           tmp13 = tmp11 - tmp12;
  98           tmp34 = tmp11 + tmp12;
  99      }
 100      {
 101           fftw_real tmp7;
 102           fftw_real tmp8;
 103           fftw_real tmp14;
 104           fftw_real tmp15;
 105           ASSERT_ALIGNED_DOUBLE();
 106           tmp7 = input[10 * istride];
 107           tmp8 = input[3 * istride];
 108           tmp9 = tmp7 - tmp8;
 109           tmp32 = tmp7 + tmp8;
 110           tmp14 = input[8 * istride];
 111           tmp15 = input[istride];
 112           tmp16 = tmp14 - tmp15;
 113           tmp35 = tmp14 + tmp15;
 114      }
 115      {
 116           fftw_real tmp25;
 117           fftw_real tmp27;
 118           fftw_real tmp26;
 119           fftw_real tmp10;
 120           fftw_real tmp24;
 121           fftw_real tmp17;
 122           ASSERT_ALIGNED_DOUBLE();
 123           tmp25 = tmp23 - tmp20;
 124           tmp27 = tmp16 - tmp13;
 125           tmp26 = tmp9 - tmp6;
 126           imag_output[imag_ostride] = (K781831482 * tmp25) + (K974927912 * tmp26) + (K433883739 * tmp27);
 127           imag_output[5 * imag_ostride] = -((K974927912 * tmp25) - (K781831482 * tmp27) - (K433883739 * tmp26));
 128           imag_output[3 * imag_ostride] = (K433883739 * tmp25) + (K974927912 * tmp27) - (K781831482 * tmp26);
 129           tmp10 = tmp6 + tmp9;
 130           tmp24 = tmp20 + tmp23;
 131           tmp17 = tmp13 + tmp16;
 132           real_output[3 * real_ostride] = tmp3 + (K623489801 * tmp10) - (K222520933 * tmp17) - (K900968867 * tmp24);
 133           real_output[7 * real_ostride] = tmp3 + tmp24 + tmp10 + tmp17;
 134           real_output[real_ostride] = tmp3 + (K623489801 * tmp24) - (K900968867 * tmp17) - (K222520933 * tmp10);
 135           real_output[5 * real_ostride] = tmp3 + (K623489801 * tmp17) - (K900968867 * tmp10) - (K222520933 * tmp24);
 136      }
 137      {
 138           fftw_real tmp30;
 139           fftw_real tmp36;
 140           fftw_real tmp33;
 141           fftw_real tmp38;
 142           fftw_real tmp40;
 143           fftw_real tmp39;
 144           ASSERT_ALIGNED_DOUBLE();
 145           tmp30 = tmp28 - tmp29;
 146           tmp36 = tmp34 - tmp35;
 147           tmp33 = tmp31 - tmp32;
 148           imag_output[2 * imag_ostride] = (K974927912 * tmp30) + (K433883739 * tmp33) + (K781831482 * tmp36);
 149           imag_output[6 * imag_ostride] = -((K781831482 * tmp30) - (K433883739 * tmp36) - (K974927912 * tmp33));
 150           imag_output[4 * imag_ostride] = -((K433883739 * tmp30) + (K781831482 * tmp33) - (K974927912 * tmp36));
 151           tmp38 = tmp29 + tmp28;
 152           tmp40 = tmp31 + tmp32;
 153           tmp39 = tmp34 + tmp35;
 154           real_output[6 * real_ostride] = tmp37 + (K623489801 * tmp38) - (K900968867 * tmp39) - (K222520933 * tmp40);
 155           real_output[2 * real_ostride] = tmp37 + (K623489801 * tmp39) - (K900968867 * tmp40) - (K222520933 * tmp38);
 156           real_output[4 * real_ostride] = tmp37 + (K623489801 * tmp40) - (K222520933 * tmp39) - (K900968867 * tmp38);
 157           real_output[0] = tmp37 + tmp38 + tmp40 + tmp39;
 158      }
 159 }
 160
 161 fftw_codelet_desc fftw_real2hc_14_desc =
 162 {
 163      "fftw_real2hc_14",
 164      (void (*)()) fftw_real2hc_14,
 165      14,
 166      FFTW_FORWARD,
 167      FFTW_REAL2HC,
 168      310,
 169      0,
 170      (const int *) 0,
 171 };