diff options
Diffstat (limited to 'src/fftw3/dft/codelets/standard/n1_2.c')
-rw-r--r-- | src/fftw3/dft/codelets/standard/n1_2.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/fftw3/dft/codelets/standard/n1_2.c b/src/fftw3/dft/codelets/standard/n1_2.c new file mode 100644 index 0000000..8819b53 --- /dev/null +++ b/src/fftw3/dft/codelets/standard/n1_2.c @@ -0,0 +1,61 @@ +/* + * 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 21:29:31 EDT 2003 */ + +#include "codelet-dft.h" + +/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_notw -compact -variables 4 -n 2 -name n1_2 -include n.h */ + +/* + * This function contains 4 FP additions, 0 FP multiplications, + * (or, 4 additions, 0 multiplications, 0 fused multiply/add), + * 5 stack variables, and 8 memory accesses + */ +/* + * Generator Id's : + * $Id: n1_2.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_2.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_2.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + */ + +#include "n.h" + +static void n1_2(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, int v, int ivs, int ovs) +{ + int i; + for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs) { + E T1, T2, T3, T4; + T1 = ri[0]; + T2 = ri[WS(is, 1)]; + ro[WS(os, 1)] = T1 - T2; + ro[0] = T1 + T2; + T3 = ii[0]; + T4 = ii[WS(is, 1)]; + io[WS(os, 1)] = T3 - T4; + io[0] = T3 + T4; + } +} + +static const kdft_desc desc = { 2, "n1_2", {4, 0, 0, 0}, &GENUS, 0, 0, 0, 0 }; +void X(codelet_n1_2) (planner *p) { + X(kdft_register) (p, n1_2, &desc); +} |