From 5a422aba704c375a307a902bafe658342e209906 Mon Sep 17 00:00:00 2001 From: scuri Date: Fri, 17 Oct 2008 06:10:15 +0000 Subject: First commit - moving from LuaForge to SourceForge --- src/fftw3/api/rdft2-pad.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 src/fftw3/api/rdft2-pad.c (limited to 'src/fftw3/api/rdft2-pad.c') diff --git a/src/fftw3/api/rdft2-pad.c b/src/fftw3/api/rdft2-pad.c new file mode 100644 index 0000000..499a55d --- /dev/null +++ b/src/fftw3/api/rdft2-pad.c @@ -0,0 +1,39 @@ +/* + * 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 + * + */ + +#include +#include "api.h" + +const int *X(rdft2_pad)(int rnk, const int *n, const int *nembed, + int inplace, int cmplx, int **nfree) +{ + A(FINITE_RNK(rnk)); + *nfree = 0; + if (!nembed && rnk > 0) { + if (inplace || cmplx) { + int *np = (int *) MALLOC(sizeof(int) * rnk, PROBLEMS); + memcpy(np, n, sizeof(int) * rnk); + np[rnk - 1] = (n[rnk - 1] / 2 + 1) * (1 + !cmplx); + nembed = *nfree = np; + } else + nembed = n; + } + return nembed; +} -- cgit v1.2.3