Chris@42: /*
Chris@42:  * Copyright (c) 2003, 2007-14 Matteo Frigo
Chris@42:  * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
Chris@42:  *
Chris@42:  * This program is free software; you can redistribute it and/or modify
Chris@42:  * it under the terms of the GNU General Public License as published by
Chris@42:  * the Free Software Foundation; either version 2 of the License, or
Chris@42:  * (at your option) any later version.
Chris@42:  *
Chris@42:  * This program is distributed in the hope that it will be useful,
Chris@42:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@42:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@42:  * GNU General Public License for more details.
Chris@42:  *
Chris@42:  * You should have received a copy of the GNU General Public License
Chris@42:  * along with this program; if not, write to the Free Software
Chris@42:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
Chris@42:  *
Chris@42:  */
Chris@42: 
Chris@42: #include "api.h"
Chris@42: #include "rdft.h"
Chris@42: 
Chris@42: X(plan) X(plan_many_dft_c2r)(int rank, const int *n,
Chris@42: 			     int howmany,
Chris@42: 			     C *in, const int *inembed,
Chris@42: 			     int istride, int idist,
Chris@42: 			     R *out, const int *onembed,
Chris@42: 			     int ostride, int odist, unsigned flags)
Chris@42: {
Chris@42:      R *ri, *ii;
Chris@42:      int *nfi, *nfo;
Chris@42:      int inplace;
Chris@42:      X(plan) p;
Chris@42: 
Chris@42:      if (!X(many_kosherp)(rank, n, howmany)) return 0;
Chris@42: 
Chris@42:      EXTRACT_REIM(FFT_SIGN, in, &ri, &ii);
Chris@42:      inplace = out == ri;
Chris@42: 
Chris@42:      if (!inplace)
Chris@42: 	  flags |= FFTW_DESTROY_INPUT;
Chris@42:      p = X(mkapiplan)(
Chris@42: 	  0, flags,
Chris@42: 	  X(mkproblem_rdft2_d_3pointers)(
Chris@42: 	       X(mktensor_rowmajor)(
Chris@42: 		    rank, n, 
Chris@42: 		    X(rdft2_pad)(rank, n, inembed, inplace, 1, &nfi),
Chris@42: 		    X(rdft2_pad)(rank, n, onembed, inplace, 0, &nfo),
Chris@42: 		    2 * istride, ostride),
Chris@42: 	       X(mktensor_1d)(howmany, 2 * idist, odist),
Chris@42: 	       TAINT_UNALIGNED(out, flags),
Chris@42: 	       TAINT_UNALIGNED(ri, flags), TAINT_UNALIGNED(ii, flags),
Chris@42: 	       HC2R));
Chris@42: 
Chris@42:      X(ifree0)(nfi);
Chris@42:      X(ifree0)(nfo);
Chris@42:      return p;
Chris@42: }