cannam@127: /*
cannam@127:  * Copyright (c) 2003, 2007-14 Matteo Frigo
cannam@127:  * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
cannam@127:  *
cannam@127:  * This program is free software; you can redistribute it and/or modify
cannam@127:  * it under the terms of the GNU General Public License as published by
cannam@127:  * the Free Software Foundation; either version 2 of the License, or
cannam@127:  * (at your option) any later version.
cannam@127:  *
cannam@127:  * This program is distributed in the hope that it will be useful,
cannam@127:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
cannam@127:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
cannam@127:  * GNU General Public License for more details.
cannam@127:  *
cannam@127:  * You should have received a copy of the GNU General Public License
cannam@127:  * along with this program; if not, write to the Free Software
cannam@127:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
cannam@127:  *
cannam@127:  */
cannam@127: 
cannam@127: #include "api.h"
cannam@127: #include "dft.h"
cannam@127: 
cannam@127: X(plan) XGURU(split_dft)(int rank, const IODIM *dims,
cannam@127: 			       int howmany_rank, const IODIM *howmany_dims,
cannam@127: 			       R *ri, R *ii, R *ro, R *io, unsigned flags)
cannam@127: {
cannam@127:      if (!GURU_KOSHERP(rank, dims, howmany_rank, howmany_dims)) return 0;
cannam@127: 
cannam@127:      return X(mkapiplan)(
cannam@127: 	  ii - ri == 1 && io - ro == 1 ? FFT_SIGN : -FFT_SIGN, flags,
cannam@127: 	  X(mkproblem_dft_d)(MKTENSOR_IODIMS(rank, dims, 1, 1),
cannam@127: 			     MKTENSOR_IODIMS(howmany_rank, howmany_dims,
cannam@127: 						1, 1),
cannam@127: 			     TAINT_UNALIGNED(ri, flags),
cannam@127: 			     TAINT_UNALIGNED(ii, flags), 
cannam@127: 			     TAINT_UNALIGNED(ro, flags),
cannam@127: 			     TAINT_UNALIGNED(io, flags)));
cannam@127: }