Chris@42: /*
Chris@42:  * Copyright (c) 2003, 2007-14 Matteo Frigo
Chris@42:  * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
Chris@42:  *
Chris@42:  * This program is free software; you can redistribute it and/or modify
Chris@42:  * it under the terms of the GNU General Public License as published by
Chris@42:  * the Free Software Foundation; either version 2 of the License, or
Chris@42:  * (at your option) any later version.
Chris@42:  *
Chris@42:  * This program is distributed in the hope that it will be useful,
Chris@42:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@42:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@42:  * GNU General Public License for more details.
Chris@42:  *
Chris@42:  * You should have received a copy of the GNU General Public License
Chris@42:  * along with this program; if not, write to the Free Software
Chris@42:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
Chris@42:  *
Chris@42:  */
Chris@42: 
Chris@42: #include <string.h>
Chris@42: #include "api.h"
Chris@42: 
Chris@42: const int *X(rdft2_pad)(int rnk, const int *n, const int *nembed,
Chris@42: 			int inplace, int cmplx, int **nfree)
Chris@42: {
Chris@42:      A(FINITE_RNK(rnk));
Chris@42:      *nfree = 0;
Chris@42:      if (!nembed && rnk > 0) {
Chris@42:           if (inplace || cmplx) {
Chris@42:                int *np = (int *) MALLOC(sizeof(int) * (unsigned)rnk, PROBLEMS);
Chris@42:                memcpy(np, n, sizeof(int) * (unsigned)rnk);
Chris@42:                np[rnk - 1] = (n[rnk - 1] / 2 + 1) * (1 + !cmplx);
Chris@42:                nembed = *nfree = np;
Chris@42:           } else
Chris@42:                nembed = n;
Chris@42:      }
Chris@42:      return nembed;
Chris@42: }