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/*
* Copyright (c) 2003 Matteo Frigo
* Copyright (c) 2003 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 Sat Jul 5 22:11:54 EDT 2003 */
#include "codelet-rdft.h"
/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_hc2r -compact -variables 4 -sign 1 -n 4 -name hc2rIII_4 -dft-III -include hc2rIII.h */
/*
* This function contains 6 FP additions, 4 FP multiplications,
* (or, 6 additions, 4 multiplications, 0 fused multiply/add),
* 9 stack variables, and 8 memory accesses
*/
/*
* Generator Id's :
* $Id: hc2rIII_4.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
* $Id: hc2rIII_4.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
* $Id: hc2rIII_4.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
*/
#include "hc2rIII.h"
static void hc2rIII_4(const R *ri, const R *ii, R *O, stride ris, stride iis, stride os, int v, int ivs, int ovs)
{
DK(KP1_414213562, +1.414213562373095048801688724209698078569671875);
DK(KP2_000000000, +2.000000000000000000000000000000000000000000000);
int i;
for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, O = O + ovs) {
E T1, T2, T3, T4, T5, T6;
T1 = ri[0];
T2 = ri[WS(ris, 1)];
T3 = T1 - T2;
T4 = ii[0];
T5 = ii[WS(iis, 1)];
T6 = T4 + T5;
O[0] = KP2_000000000 * (T1 + T2);
O[WS(os, 2)] = KP2_000000000 * (T5 - T4);
O[WS(os, 1)] = KP1_414213562 * (T3 - T6);
O[WS(os, 3)] = -(KP1_414213562 * (T3 + T6));
}
}
static const khc2r_desc desc = { 4, "hc2rIII_4", {6, 4, 0, 0}, &GENUS, 0, 0, 0, 0, 0 };
void X(codelet_hc2rIII_4) (planner *p) {
X(khc2rIII_register) (p, hc2rIII_4, &desc);
}
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