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-rw-r--r--src/fftw3/dft/indirect.c238
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]));
-}
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