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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 20:43:53 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 5 */
/*
* This function contains 12 FP additions, 6 FP multiplications,
* (or, 9 additions, 3 multiplications, 3 fused multiply/add),
* 12 stack variables, and 10 memory accesses
*/
static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000);
static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590);
static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438);
static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634);
/*
* Generator Id's :
* $Id: frc_5.c,v 1.1.1.1 2006/05/12 15:14:56 veplaini Exp $
* $Id: frc_5.c,v 1.1.1.1 2006/05/12 15:14:56 veplaini Exp $
* $Id: frc_5.c,v 1.1.1.1 2006/05/12 15:14:56 veplaini Exp $
*/
void fftw_real2hc_5(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride)
{
fftw_real tmp10;
fftw_real tmp7;
fftw_real tmp8;
fftw_real tmp3;
fftw_real tmp11;
fftw_real tmp6;
fftw_real tmp9;
fftw_real tmp12;
ASSERT_ALIGNED_DOUBLE;
tmp10 = input[0];
{
fftw_real tmp1;
fftw_real tmp2;
fftw_real tmp4;
fftw_real tmp5;
ASSERT_ALIGNED_DOUBLE;
tmp1 = input[istride];
tmp2 = input[4 * istride];
tmp7 = tmp1 + tmp2;
tmp4 = input[2 * istride];
tmp5 = input[3 * istride];
tmp8 = tmp4 + tmp5;
tmp3 = tmp1 - tmp2;
tmp11 = tmp7 + tmp8;
tmp6 = tmp4 - tmp5;
}
imag_output[imag_ostride] = -((K951056516 * tmp3) + (K587785252 * tmp6));
imag_output[2 * imag_ostride] = (K951056516 * tmp6) - (K587785252 * tmp3);
real_output[0] = tmp10 + tmp11;
tmp9 = K559016994 * (tmp7 - tmp8);
tmp12 = tmp10 - (K250000000 * tmp11);
real_output[real_ostride] = tmp9 + tmp12;
real_output[2 * real_ostride] = tmp12 - tmp9;
}
fftw_codelet_desc fftw_real2hc_5_desc =
{
"fftw_real2hc_5",
(void (*)()) fftw_real2hc_5,
5,
FFTW_FORWARD,
FFTW_REAL2HC,
112,
0,
(const int *) 0,
};
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