cannam@127: /*
cannam@127:  * Copyright (c) 2003, 2007-14 Matteo Frigo
cannam@127:  * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
cannam@127:  *
cannam@127:  * This program is free software; you can redistribute it and/or modify
cannam@127:  * it under the terms of the GNU General Public License as published by
cannam@127:  * the Free Software Foundation; either version 2 of the License, or
cannam@127:  * (at your option) any later version.
cannam@127:  *
cannam@127:  * This program is distributed in the hope that it will be useful,
cannam@127:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
cannam@127:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
cannam@127:  * GNU General Public License for more details.
cannam@127:  *
cannam@127:  * You should have received a copy of the GNU General Public License
cannam@127:  * along with this program; if not, write to the Free Software
cannam@127:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
cannam@127:  *
cannam@127:  */
cannam@127: 
cannam@127: #include <string.h>
cannam@127: #include "api.h"
cannam@127: 
cannam@127: const int *X(rdft2_pad)(int rnk, const int *n, const int *nembed,
cannam@127: 			int inplace, int cmplx, int **nfree)
cannam@127: {
cannam@127:      A(FINITE_RNK(rnk));
cannam@127:      *nfree = 0;
cannam@127:      if (!nembed && rnk > 0) {
cannam@127:           if (inplace || cmplx) {
cannam@127:                int *np = (int *) MALLOC(sizeof(int) * (unsigned)rnk, PROBLEMS);
cannam@127:                memcpy(np, n, sizeof(int) * (unsigned)rnk);
cannam@127:                np[rnk - 1] = (n[rnk - 1] / 2 + 1) * (1 + !cmplx);
cannam@127:                nembed = *nfree = np;
cannam@127:           } else
cannam@127:                nembed = n;
cannam@127:      }
cannam@127:      return nembed;
cannam@127: }