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2 pj 1
/*
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 * Copyright (c) 1997-1999 Massachusetts Institute of Technology
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 */
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/* This file was automatically generated --- DO NOT EDIT */
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/* Generated on Tue May 18 13:54:34 EDT 1999 */
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107 pj 23
#include <fftw-int.h>
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#include <fftw.h>
2 pj 25
 
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/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -real2hc 7 */
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/*
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 * This function contains 24 FP additions, 18 FP multiplications,
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 * (or, 24 additions, 18 multiplications, 0 fused multiply/add),
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 * 13 stack variables, and 14 memory accesses
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 */
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static const fftw_real K222520933 = FFTW_KONST(+0.222520933956314404288902564496794759466355569);
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static const fftw_real K900968867 = FFTW_KONST(+0.900968867902419126236102319507445051165919162);
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static const fftw_real K623489801 = FFTW_KONST(+0.623489801858733530525004884004239810632274731);
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static const fftw_real K433883739 = FFTW_KONST(+0.433883739117558120475768332848358754609990728);
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static const fftw_real K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519);
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static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801);
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/*
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 * Generator Id's :
107 pj 42
 * $Id: frc_7.c,v 1.2 2003-03-24 11:14:59 pj Exp $
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 * $Id: frc_7.c,v 1.2 2003-03-24 11:14:59 pj Exp $
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 * $Id: frc_7.c,v 1.2 2003-03-24 11:14:59 pj Exp $
2 pj 45
 */
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void fftw_real2hc_7(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride)
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{
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     fftw_real tmp1;
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     fftw_real tmp10;
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     fftw_real tmp11;
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     fftw_real tmp4;
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     fftw_real tmp13;
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     fftw_real tmp7;
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     fftw_real tmp12;
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     fftw_real tmp8;
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     fftw_real tmp9;
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     ASSERT_ALIGNED_DOUBLE();
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     tmp1 = input[0];
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     tmp8 = input[istride];
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     tmp9 = input[6 * istride];
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     tmp10 = tmp8 + tmp9;
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     tmp11 = tmp9 - tmp8;
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     {
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          fftw_real tmp2;
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          fftw_real tmp3;
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          fftw_real tmp5;
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          fftw_real tmp6;
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          ASSERT_ALIGNED_DOUBLE();
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          tmp2 = input[2 * istride];
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          tmp3 = input[5 * istride];
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          tmp4 = tmp2 + tmp3;
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          tmp13 = tmp3 - tmp2;
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          tmp5 = input[3 * istride];
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          tmp6 = input[4 * istride];
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          tmp7 = tmp5 + tmp6;
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          tmp12 = tmp6 - tmp5;
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     }
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     imag_output[2 * imag_ostride] = (K974927912 * tmp11) - (K781831482 * tmp12) - (K433883739 * tmp13);
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     imag_output[imag_ostride] = (K781831482 * tmp11) + (K974927912 * tmp13) + (K433883739 * tmp12);
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     imag_output[3 * imag_ostride] = (K433883739 * tmp11) + (K974927912 * tmp12) - (K781831482 * tmp13);
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     real_output[2 * real_ostride] = tmp1 + (K623489801 * tmp7) - (K900968867 * tmp4) - (K222520933 * tmp10);
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     real_output[real_ostride] = tmp1 + (K623489801 * tmp10) - (K900968867 * tmp7) - (K222520933 * tmp4);
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     real_output[3 * real_ostride] = tmp1 + (K623489801 * tmp4) - (K222520933 * tmp7) - (K900968867 * tmp10);
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     real_output[0] = tmp1 + tmp10 + tmp4 + tmp7;
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}
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fftw_codelet_desc fftw_real2hc_7_desc =
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{
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     "fftw_real2hc_7",
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     (void (*)()) fftw_real2hc_7,
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     7,
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     FFTW_FORWARD,
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     FFTW_REAL2HC,
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     156,
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     0,
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     (const int *) 0,
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};