Subversion Repositories shark

Rev

Rev 3 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | RSS feed

/*
 * Copyright (c) 1997-1999 Massachusetts Institute of Technology
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


/* This file was automatically generated --- DO NOT EDIT */
/* Generated on Tue May 18 13:54:45 EDT 1999 */

#include <fftw-int.h>
#include <fftw.h>

/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddleinv 7 */

/*
 * This function contains 60 FP additions, 36 FP multiplications,
 * (or, 60 additions, 36 multiplications, 0 fused multiply/add),
 * 22 stack variables, and 28 memory accesses
 */

static const fftw_real K222520933 = FFTW_KONST(+0.222520933956314404288902564496794759466355569);
static const fftw_real K900968867 = FFTW_KONST(+0.900968867902419126236102319507445051165919162);
static const fftw_real K623489801 = FFTW_KONST(+0.623489801858733530525004884004239810632274731);
static const fftw_real K433883739 = FFTW_KONST(+0.433883739117558120475768332848358754609990728);
static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801);
static const fftw_real K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519);

/*
 * Generator Id's :
 * $Id: fni_7.c,v 1.2 2003-03-24 11:14:52 pj Exp $
 * $Id: fni_7.c,v 1.2 2003-03-24 11:14:52 pj Exp $
 * $Id: fni_7.c,v 1.2 2003-03-24 11:14:52 pj Exp $
 */


void fftwi_no_twiddle_7(const fftw_complex *input, fftw_complex *output, int istride, int ostride)
{
     fftw_real tmp1;
     fftw_real tmp15;
     fftw_real tmp4;
     fftw_real tmp11;
     fftw_real tmp24;
     fftw_real tmp31;
     fftw_real tmp7;
     fftw_real tmp13;
     fftw_real tmp18;
     fftw_real tmp33;
     fftw_real tmp10;
     fftw_real tmp12;
     fftw_real tmp21;
     fftw_real tmp32;
     ASSERT_ALIGNED_DOUBLE();
     tmp1 = c_re(input[0]);
     tmp15 = c_im(input[0]);
     {
          fftw_real tmp2;
          fftw_real tmp3;
          fftw_real tmp22;
          fftw_real tmp23;
          ASSERT_ALIGNED_DOUBLE();
          tmp2 = c_re(input[istride]);
          tmp3 = c_re(input[6 * istride]);
          tmp4 = tmp2 + tmp3;
          tmp11 = tmp2 - tmp3;
          tmp22 = c_im(input[istride]);
          tmp23 = c_im(input[6 * istride]);
          tmp24 = tmp22 + tmp23;
          tmp31 = tmp23 - tmp22;
     }
     {
          fftw_real tmp5;
          fftw_real tmp6;
          fftw_real tmp16;
          fftw_real tmp17;
          ASSERT_ALIGNED_DOUBLE();
          tmp5 = c_re(input[2 * istride]);
          tmp6 = c_re(input[5 * istride]);
          tmp7 = tmp5 + tmp6;
          tmp13 = tmp5 - tmp6;
          tmp16 = c_im(input[2 * istride]);
          tmp17 = c_im(input[5 * istride]);
          tmp18 = tmp16 + tmp17;
          tmp33 = tmp17 - tmp16;
     }
     {
          fftw_real tmp8;
          fftw_real tmp9;
          fftw_real tmp19;
          fftw_real tmp20;
          ASSERT_ALIGNED_DOUBLE();
          tmp8 = c_re(input[3 * istride]);
          tmp9 = c_re(input[4 * istride]);
          tmp10 = tmp8 + tmp9;
          tmp12 = tmp8 - tmp9;
          tmp19 = c_im(input[3 * istride]);
          tmp20 = c_im(input[4 * istride]);
          tmp21 = tmp19 + tmp20;
          tmp32 = tmp20 - tmp19;
     }
     {
          fftw_real tmp36;
          fftw_real tmp35;
          fftw_real tmp26;
          fftw_real tmp27;
          ASSERT_ALIGNED_DOUBLE();
          c_re(output[0]) = tmp1 + tmp4 + tmp7 + tmp10;
          tmp36 = (K781831482 * tmp31) + (K974927912 * tmp33) + (K433883739 * tmp32);
          tmp35 = tmp1 + (K623489801 * tmp4) - (K900968867 * tmp10) - (K222520933 * tmp7);
          c_re(output[6 * ostride]) = tmp35 - tmp36;
          c_re(output[ostride]) = tmp35 + tmp36;
          {
               fftw_real tmp38;
               fftw_real tmp37;
               fftw_real tmp34;
               fftw_real tmp30;
               ASSERT_ALIGNED_DOUBLE();
               tmp38 = (K433883739 * tmp31) + (K974927912 * tmp32) - (K781831482 * tmp33);
               tmp37 = tmp1 + (K623489801 * tmp7) - (K222520933 * tmp10) - (K900968867 * tmp4);
               c_re(output[4 * ostride]) = tmp37 - tmp38;
               c_re(output[3 * ostride]) = tmp37 + tmp38;
               tmp34 = (K974927912 * tmp31) - (K781831482 * tmp32) - (K433883739 * tmp33);
               tmp30 = tmp1 + (K623489801 * tmp10) - (K900968867 * tmp7) - (K222520933 * tmp4);
               c_re(output[5 * ostride]) = tmp30 - tmp34;
               c_re(output[2 * ostride]) = tmp30 + tmp34;
          }
          c_im(output[0]) = tmp15 + tmp24 + tmp18 + tmp21;
          tmp26 = (K781831482 * tmp11) + (K974927912 * tmp13) + (K433883739 * tmp12);
          tmp27 = tmp15 + (K623489801 * tmp24) - (K900968867 * tmp21) - (K222520933 * tmp18);
          c_im(output[ostride]) = tmp26 + tmp27;
          c_im(output[6 * ostride]) = tmp27 - tmp26;
          {
               fftw_real tmp14;
               fftw_real tmp25;
               fftw_real tmp28;
               fftw_real tmp29;
               ASSERT_ALIGNED_DOUBLE();
               tmp14 = (K433883739 * tmp11) + (K974927912 * tmp12) - (K781831482 * tmp13);
               tmp25 = tmp15 + (K623489801 * tmp18) - (K222520933 * tmp21) - (K900968867 * tmp24);
               c_im(output[3 * ostride]) = tmp14 + tmp25;
               c_im(output[4 * ostride]) = tmp25 - tmp14;
               tmp28 = (K974927912 * tmp11) - (K781831482 * tmp12) - (K433883739 * tmp13);
               tmp29 = tmp15 + (K623489801 * tmp21) - (K900968867 * tmp18) - (K222520933 * tmp24);
               c_im(output[2 * ostride]) = tmp28 + tmp29;
               c_im(output[5 * ostride]) = tmp29 - tmp28;
          }
     }
}

fftw_codelet_desc fftwi_no_twiddle_7_desc =
{
     "fftwi_no_twiddle_7",
     (void (*)()) fftwi_no_twiddle_7,
     7,
     FFTW_BACKWARD,
     FFTW_NOTW,
     166,
     0,
     (const int *) 0,
};