ref: d6839757dffdf592ae300726a64e0f3199a9cd56
dir: /libfaad/fftw/fni_7.c/
/*
* 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 Sun Nov 7 20:44:05 EST 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 1.1 2002/04/07 21:26:04 menno Exp $
* $Id: fni_7.c,v 1.1 2002/04/07 21:26:04 menno Exp $
* $Id: fni_7.c,v 1.1 2002/04/07 21:26:04 menno 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,
};