diff options
Diffstat (limited to 'src/fftw3/api/plan-many-dft-c2r.c')
-rw-r--r-- | src/fftw3/api/plan-many-dft-c2r.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/fftw3/api/plan-many-dft-c2r.c b/src/fftw3/api/plan-many-dft-c2r.c new file mode 100644 index 0000000..81b6338 --- /dev/null +++ b/src/fftw3/api/plan-many-dft-c2r.c @@ -0,0 +1,59 @@ +/* + * 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 "api.h" +#include "rdft.h" + +X(plan) X(plan_many_dft_c2r)(int rank, const int *n, + int howmany, + C *in, const int *inembed, + int istride, int idist, + R *out, const int *onembed, + int ostride, int odist, unsigned flags) +{ + R *ri, *ii; + int *nfi, *nfo; + int inplace; + X(plan) p; + + if (!X(many_kosherp)(rank, n, howmany)) return 0; + + X(extract_reim)(FFT_SIGN, in, &ri, &ii); + inplace = out == ri; + + if (!inplace) + flags |= FFTW_DESTROY_INPUT; + p = X(mkapiplan)( + 0, flags, + X(mkproblem_rdft2_d)( + X(mktensor_rowmajor)( + rank, n, + X (rdft2_pad)(rank, n, inembed, inplace, 1, &nfi), + X (rdft2_pad)(rank, n, onembed, inplace, 0, &nfo), + 2 * istride, ostride), + X(mktensor_1d)(howmany, 2 * idist, odist), + TAINT_UNALIGNED(out, flags), + TAINT_UNALIGNED(ri, flags), TAINT_UNALIGNED(ii, flags), + HC2R)); + + X(ifree0)(nfi); + X(ifree0)(nfo); + return p; +} |