diff options
Diffstat (limited to 'src/fftw3/rdft/codelets/hc2r/hc2rIII_4.c')
| -rw-r--r-- | src/fftw3/rdft/codelets/hc2r/hc2rIII_4.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/fftw3/rdft/codelets/hc2r/hc2rIII_4.c b/src/fftw3/rdft/codelets/hc2r/hc2rIII_4.c new file mode 100644 index 0000000..d562add --- /dev/null +++ b/src/fftw3/rdft/codelets/hc2r/hc2rIII_4.c @@ -0,0 +1,66 @@ +/* + * 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); +} |