diff options
| author | scuri <scuri> | 2009-08-20 12:35:06 +0000 | 
|---|---|---|
| committer | scuri <scuri> | 2009-08-20 12:35:06 +0000 | 
| commit | 5d735255ddd3cb2f547abd3d03969af3fb7eb04e (patch) | |
| tree | 8fb66510bc625bb1b08ccb41f1b83fb0f7cb8f19 /src/fftw3/dft/indirect.c | |
| parent | 35733b87eed86e5228f12fa10c98a3d9d22a6073 (diff) | |
*** empty log message ***
Diffstat (limited to 'src/fftw3/dft/indirect.c')
| -rw-r--r-- | src/fftw3/dft/indirect.c | 238 | 
1 files changed, 0 insertions, 238 deletions
| diff --git a/src/fftw3/dft/indirect.c b/src/fftw3/dft/indirect.c deleted file mode 100644 index e00eabf..0000000 --- a/src/fftw3/dft/indirect.c +++ /dev/null @@ -1,238 +0,0 @@ -/* - * 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 - * - */ - -/* $Id: indirect.c,v 1.1 2008/10/17 06:11:08 scuri Exp $ */ - - -/* solvers/plans for vectors of small DFT's that cannot be done -   in-place directly.  Use a rank-0 plan to rearrange the data -   before or after the transform.  Can also change an out-of-place -   plan into a copy + in-place (where the in-place transform -   is e.g. unit stride). */ - -/* FIXME: merge with rank-geq2.c(?), since this is just a special case -   of a rank split where the first/second transform has rank 0. */ - -#include "dft.h" - -typedef problem *(*mkcld_t) (const problem_dft *p); - -typedef struct { -     dftapply apply; -     problem *(*mkcld)(const problem_dft *p); -     const char *nam; -} ndrct_adt; - -typedef struct { -     solver super; -     const ndrct_adt *adt; -} S; - -typedef struct { -     plan_dft super; -     plan *cldcpy, *cld; -     const S *slv; -} P; - -/*-----------------------------------------------------------------------*/ -/* first rearrange, then transform */ -static void apply_before(const plan *ego_, R *ri, R *ii, R *ro, R *io) -{ -     const P *ego = (const P *) ego_; - -     { -          plan_dft *cldcpy = (plan_dft *) ego->cldcpy; -          cldcpy->apply(ego->cldcpy, ri, ii, ro, io); -     } -     { -          plan_dft *cld = (plan_dft *) ego->cld; -          cld->apply(ego->cld, ro, io, ro, io); -     } -} - -static problem *mkcld_before(const problem_dft *p) -{ -     return X(mkproblem_dft_d)(X(tensor_copy_inplace)(p->sz, INPLACE_OS), -			       X(tensor_copy_inplace)(p->vecsz, INPLACE_OS), -			       p->ro, p->io, p->ro, p->io); -} - -static const ndrct_adt adt_before = -{ -     apply_before, mkcld_before, "dft-indirect-before" -}; - -/*-----------------------------------------------------------------------*/ -/* first transform, then rearrange */ - -static void apply_after(const plan *ego_, R *ri, R *ii, R *ro, R *io) -{ -     const P *ego = (const P *) ego_; - -     { -          plan_dft *cld = (plan_dft *) ego->cld; -          cld->apply(ego->cld, ri, ii, ri, ii); -     } -     { -          plan_dft *cldcpy = (plan_dft *) ego->cldcpy; -          cldcpy->apply(ego->cldcpy, ri, ii, ro, io); -     } -} - -static problem *mkcld_after(const problem_dft *p) -{ -     return X(mkproblem_dft_d)(X(tensor_copy_inplace)(p->sz, INPLACE_IS), -			       X(tensor_copy_inplace)(p->vecsz, INPLACE_IS), -			       p->ri, p->ii, p->ri, p->ii); -} - -static const ndrct_adt adt_after = -{ -     apply_after, mkcld_after, "dft-indirect-after" -}; - -/*-----------------------------------------------------------------------*/ -static void destroy(plan *ego_) -{ -     P *ego = (P *) ego_; -     X(plan_destroy_internal)(ego->cld); -     X(plan_destroy_internal)(ego->cldcpy); -} - -static void awake(plan *ego_, int flg) -{ -     P *ego = (P *) ego_; -     AWAKE(ego->cldcpy, flg); -     AWAKE(ego->cld, flg); -} - -static void print(const plan *ego_, printer *p) -{ -     const P *ego = (const P *) ego_; -     const S *s = ego->slv; -     p->print(p, "(%s%(%p%)%(%p%))", s->adt->nam, ego->cld, ego->cldcpy); -} - -static int applicable0(const solver *ego_, const problem *p_, -		       const planner *plnr) -{ -     if (DFTP(p_)) { -	  const S *ego = (const S *) ego_; -          const problem_dft *p = (const problem_dft *) p_; -          return (1 -                  && FINITE_RNK(p->vecsz->rnk) - -                  /* problem must be a nontrivial transform, not just a copy */ -                  && p->sz->rnk > 0 - -                  && (0 - -		      /* problem must be in-place & require some -		         rearrangement of the data */ -		      || (p->ri == p->ro -			  && !(X(tensor_inplace_strides2)(p->sz, p->vecsz))) - -		      /* or problem must be out of place, transforming -			 from stride 1/2 to bigger stride, for apply_after */ -		      || (p->ri != p->ro && ego->adt->apply == apply_after -			  && DESTROY_INPUTP(plnr) -			  && X(tensor_min_istride)(p->sz) <= 2 -			  && X(tensor_min_ostride)(p->sz) > 2) -			   -		      /* or problem must be out of place, transforming -			 to stride 1/2 from bigger stride, for apply_before */ -		      || (p->ri != p->ro && ego->adt->apply == apply_before -			  && X(tensor_min_ostride)(p->sz) <= 2 -			  && X(tensor_min_istride)(p->sz) > 2) -		       ) -	       ); -     } - -     return 0; -} - -static int applicable(const solver *ego_, const problem *p_, -		      const planner *plnr) -{ -     if (!applicable0(ego_, p_, plnr)) return 0; -     { -          const problem_dft *p = (const problem_dft *) p_; -	  if (NO_INDIRECT_OP_P(plnr) && p->ri != p->ro) return 0; -     } -     return 1; -} - -static plan *mkplan(const solver *ego_, const problem *p_, planner *plnr) -{ -     const problem_dft *p = (const problem_dft *) p_; -     const S *ego = (const S *) ego_; -     P *pln; -     plan *cld = 0, *cldcpy = 0; - -     static const plan_adt padt = { -	  X(dft_solve), awake, print, destroy -     }; - -     if (!applicable(ego_, p_, plnr)) -          return (plan *) 0; - -     plnr->planner_flags |= NO_BUFFERING; - -     cldcpy = X(mkplan_d)(plnr,  -			  X(mkproblem_dft_d)(X(mktensor_0d)(), -					     X(tensor_append)(p->vecsz, p->sz), -					     p->ri, p->ii, p->ro, p->io)); -     if (!cldcpy) goto nada; - -     cld = X(mkplan_d)(plnr, ego->adt->mkcld(p)); -     if (!cld) goto nada; - -     pln = MKPLAN_DFT(P, &padt, ego->adt->apply); -     pln->cld = cld; -     pln->cldcpy = cldcpy; -     pln->slv = ego; -     X(ops_add)(&cld->ops, &cldcpy->ops, &pln->super.super.ops); - -     return &(pln->super.super); - - nada: -     X(plan_destroy_internal)(cld); -     X(plan_destroy_internal)(cldcpy); -     return (plan *)0; -} - -static solver *mksolver(const ndrct_adt *adt) -{ -     static const solver_adt sadt = { mkplan }; -     S *slv = MKSOLVER(S, &sadt); -     slv->adt = adt; -     return &(slv->super); -} - -void X(dft_indirect_register)(planner *p) -{ -     unsigned i; -     static const ndrct_adt *const adts[] = { -	  &adt_before, &adt_after -     }; - -     for (i = 0; i < sizeof(adts) / sizeof(adts[0]); ++i) -          REGISTER_SOLVER(p, mksolver(adts[i])); -} | 
