furnace/extern/fftw/api/execute-dft-r2c.c
2022-05-31 03:24:29 -05:00

30 lines
1.2 KiB
C

/*
* Copyright (c) 2003, 2007-14 Matteo Frigo
* Copyright (c) 2003, 2007-14 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "api/api.h"
#include "rdft/rdft.h"
/* guru interface: requires care in alignment, r - i, etcetera. */
void X(execute_dft_r2c)(const X(plan) p, R *in, C *out)
{
plan_rdft2 *pln = (plan_rdft2 *) p->pln;
problem_rdft2 *prb = (problem_rdft2 *) p->prb;
pln->apply((plan *) pln, in, in + (prb->r1 - prb->r0), out[0], out[0]+1);
}