cannam@95: /*
cannam@95:  * Copyright (c) 2003, 2007-11 Matteo Frigo
cannam@95:  * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
cannam@95:  *
cannam@95:  * This program is free software; you can redistribute it and/or modify
cannam@95:  * it under the terms of the GNU General Public License as published by
cannam@95:  * the Free Software Foundation; either version 2 of the License, or
cannam@95:  * (at your option) any later version.
cannam@95:  *
cannam@95:  * This program is distributed in the hope that it will be useful,
cannam@95:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
cannam@95:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
cannam@95:  * GNU General Public License for more details.
cannam@95:  *
cannam@95:  * You should have received a copy of the GNU General Public License
cannam@95:  * along with this program; if not, write to the Free Software
cannam@95:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
cannam@95:  *
cannam@95:  */
cannam@95: 
cannam@95: #include "api.h"
cannam@95: #include "rdft.h"
cannam@95: 
cannam@95: X(plan) X(plan_many_dft_c2r)(int rank, const int *n,
cannam@95: 			     int howmany,
cannam@95: 			     C *in, const int *inembed,
cannam@95: 			     int istride, int idist,
cannam@95: 			     R *out, const int *onembed,
cannam@95: 			     int ostride, int odist, unsigned flags)
cannam@95: {
cannam@95:      R *ri, *ii;
cannam@95:      int *nfi, *nfo;
cannam@95:      int inplace;
cannam@95:      X(plan) p;
cannam@95: 
cannam@95:      if (!X(many_kosherp)(rank, n, howmany)) return 0;
cannam@95: 
cannam@95:      EXTRACT_REIM(FFT_SIGN, in, &ri, &ii);
cannam@95:      inplace = out == ri;
cannam@95: 
cannam@95:      if (!inplace)
cannam@95: 	  flags |= FFTW_DESTROY_INPUT;
cannam@95:      p = X(mkapiplan)(
cannam@95: 	  0, flags,
cannam@95: 	  X(mkproblem_rdft2_d_3pointers)(
cannam@95: 	       X(mktensor_rowmajor)(
cannam@95: 		    rank, n, 
cannam@95: 		    X(rdft2_pad)(rank, n, inembed, inplace, 1, &nfi),
cannam@95: 		    X(rdft2_pad)(rank, n, onembed, inplace, 0, &nfo),
cannam@95: 		    2 * istride, ostride),
cannam@95: 	       X(mktensor_1d)(howmany, 2 * idist, odist),
cannam@95: 	       TAINT_UNALIGNED(out, flags),
cannam@95: 	       TAINT_UNALIGNED(ri, flags), TAINT_UNALIGNED(ii, flags),
cannam@95: 	       HC2R));
cannam@95: 
cannam@95:      X(ifree0)(nfi);
cannam@95:      X(ifree0)(nfo);
cannam@95:      return p;
cannam@95: }