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/*
* 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 20:43:54 EST 1999 */
#include <fftw-int.h>
#include <fftw.h>
/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -real2hc 7 */
/*
* This function contains 24 FP additions, 18 FP multiplications,
* (or, 24 additions, 18 multiplications, 0 fused multiply/add),
* 13 stack variables, and 14 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 K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519);
static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801);
/*
* Generator Id's :
* $Id: frc_7.c,v 1.1.1.1 2006/05/12 15:15:01 veplaini Exp $
* $Id: frc_7.c,v 1.1.1.1 2006/05/12 15:15:01 veplaini Exp $
* $Id: frc_7.c,v 1.1.1.1 2006/05/12 15:15:01 veplaini Exp $
*/
void fftw_real2hc_7(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride)
{
fftw_real tmp1;
fftw_real tmp10;
fftw_real tmp11;
fftw_real tmp4;
fftw_real tmp13;
fftw_real tmp7;
fftw_real tmp12;
fftw_real tmp8;
fftw_real tmp9;
ASSERT_ALIGNED_DOUBLE;
tmp1 = input[0];
tmp8 = input[istride];
tmp9 = input[6 * istride];
tmp10 = tmp8 + tmp9;
tmp11 = tmp9 - tmp8;
{
fftw_real tmp2;
fftw_real tmp3;
fftw_real tmp5;
fftw_real tmp6;
ASSERT_ALIGNED_DOUBLE;
tmp2 = input[2 * istride];
tmp3 = input[5 * istride];
tmp4 = tmp2 + tmp3;
tmp13 = tmp3 - tmp2;
tmp5 = input[3 * istride];
tmp6 = input[4 * istride];
tmp7 = tmp5 + tmp6;
tmp12 = tmp6 - tmp5;
}
imag_output[2 * imag_ostride] = (K974927912 * tmp11) - (K781831482 * tmp12) - (K433883739 * tmp13);
imag_output[imag_ostride] = (K781831482 * tmp11) + (K974927912 * tmp13) + (K433883739 * tmp12);
imag_output[3 * imag_ostride] = (K433883739 * tmp11) + (K974927912 * tmp12) - (K781831482 * tmp13);
real_output[2 * real_ostride] = tmp1 + (K623489801 * tmp7) - (K900968867 * tmp4) - (K222520933 * tmp10);
real_output[real_ostride] = tmp1 + (K623489801 * tmp10) - (K900968867 * tmp7) - (K222520933 * tmp4);
real_output[3 * real_ostride] = tmp1 + (K623489801 * tmp4) - (K222520933 * tmp7) - (K900968867 * tmp10);
real_output[0] = tmp1 + tmp10 + tmp4 + tmp7;
}
fftw_codelet_desc fftw_real2hc_7_desc =
{
"fftw_real2hc_7",
(void (*)()) fftw_real2hc_7,
7,
FFTW_FORWARD,
FFTW_REAL2HC,
156,
0,
(const int *) 0,
};
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