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