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-rw-r--r--src/fftw3/dft/rank0.c235
1 files changed, 0 insertions, 235 deletions
diff --git a/src/fftw3/dft/rank0.c b/src/fftw3/dft/rank0.c
deleted file mode 100644
index bef719f..0000000
--- a/src/fftw3/dft/rank0.c
+++ /dev/null
@@ -1,235 +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: rank0.c,v 1.1 2008/10/17 06:11:08 scuri Exp $ */
-
-/* plans for rank-0 DFTs (copy operations) */
-
-#include "dft.h"
-
-#ifdef HAVE_STRING_H
-#include <string.h> /* for memcpy() */
-#endif
-
-
-typedef struct {
- dftapply apply;
- int (*applicable)(const problem_dft *p);
- const char *nam;
-} rnk0adt;
-
-typedef struct {
- solver super;
- const rnk0adt *adt;
-} S;
-
-typedef struct {
- plan_dft super;
- int vl;
- int ivs, ovs;
- const S *slv;
-} P;
-
-/* generic applicability function */
-static int applicable(const solver *ego_, const problem *p_)
-{
- if (DFTP(p_)) {
- const S *ego = (const S *) ego_;
- const problem_dft *p = (const problem_dft *) p_;
- return (1
- && p->ri != p->ro
- && p->sz->rnk == 0
- && ego->adt->applicable(p)
- );
- }
- return 0;
-}
-
-/*-----------------------------------------------------------------------*/
-/* rank-0 dft, vl == 1: just a copy */
-static void apply_1(const plan *ego_, R *ri, R *ii, R *ro, R *io)
-{
- UNUSED(ego_);
- *ro = *ri;
- *io = *ii;
-}
-
-static int applicable_1(const problem_dft *p)
-{
- return (p->vecsz->rnk == 0);
-}
-
-static const rnk0adt adt_cpy1 =
-{
- apply_1, applicable_1, "dft-rank0-cpy1"
-};
-
-/*-----------------------------------------------------------------------*/
-/* rank-0 dft, vl > 1: just a copy loop (unroll 4) */
-static void apply_vec(const plan *ego_, R *ri, R *ii, R *ro, R *io)
-{
- const P *ego = (const P *) ego_;
- int i, vl = ego->vl;
- int ivs = ego->ivs, ovs = ego->ovs;
- int imi = ii - ri, imo = io - ro;
- for (i = vl; i > 0; --i) {
- R r0 = ri[0], i0 = ri[imi];
- ro[0] = r0; ro[imo] = i0;
- ri += ivs; ro += ovs;
- }
-}
-
-static int applicable_vec(const problem_dft *p)
-{
- return (p->vecsz->rnk == 1 && p->ro != p->ri);
-}
-
-static const rnk0adt adt_vec =
-{
- apply_vec, applicable_vec, "dft-rank0-vec"
-};
-
-/*-----------------------------------------------------------------------*/
-/* rank-0 dft, vl > 1, [io]vs == 1, using memcpy */
-static void apply_io1(const plan *ego_, R *ri, R *ii, R *ro, R *io)
-{
- const P *ego = (const P *) ego_;
- int vl = ego->vl;
- memcpy(ro, ri, vl * sizeof(R));
- memcpy(io, ii, vl * sizeof(R));
-}
-
-static int applicable_io1(const problem_dft *p)
-{
- return (1
- && applicable_vec(p)
- && p->vecsz->dims[0].is == 1
- && p->vecsz->dims[0].os == 1
- );
-}
-
-static const rnk0adt adt_io1 =
-{
- apply_io1, applicable_io1, "dft-rank0-io1-memcpy"
-};
-
-/*-----------------------------------------------------------------------*/
-/* rank-0 dft, vl > 1, [io]vs == 2 (interleaved) using memcpy */
-static void apply_io2r(const plan *ego_, R *ri, R *ii, R *ro, R *io)
-{
- const P *ego = (const P *) ego_;
- int vl = ego->vl;
- UNUSED(ii);
- UNUSED(io); /* i{in,out}put == r{in,out}put + 1 */
- memcpy(ro, ri, vl * sizeof(R) * 2);
-}
-
-static int applicable_io2r(const problem_dft *p)
-{
- return (1
- && applicable_vec(p)
- && p->vecsz->dims[0].is == 2
- && p->vecsz->dims[0].os == 2
- && p->ii == p->ri + 1 && p->io == p->ro + 1
- );
-}
-
-static const rnk0adt adt_io2r =
-{
- apply_io2r, applicable_io2r, "dft-rank0-io2r-memcpy"
-};
-
-static void apply_io2i(const plan *ego_, R *ri, R *ii, R *ro, R *io)
-{
- const P *ego = (const P *) ego_;
- int vl = ego->vl;
- UNUSED(ri);
- UNUSED(ro); /* r{in,out}put == i{in,out}put + 1 */
- memcpy(io, ii, vl * sizeof(R) * 2);
-}
-
-static int applicable_io2i(const problem_dft *p)
-{
- return (1
- && applicable_vec(p)
- && p->vecsz->dims[0].is == 2
- && p->vecsz->dims[0].os == 2
- && p->ri == p->ii + 1 && p->ro == p->io + 1
- );
-}
-
-static const rnk0adt adt_io2i =
-{
- apply_io2i, applicable_io2i, "dft-rank0-io2i-memcpy"
-};
-
-/*-----------------------------------------------------------------------*/
-/* generic stuff: */
-
-static void print(const plan *ego_, printer *p)
-{
- const P *ego = (const P *) ego_;
- p->print(p, "(%s%v)", ego->slv->adt->nam, ego->vl);
-}
-
-static plan *mkplan(const solver *ego_, const problem *p_, planner *plnr)
-{
- const S *ego = (const S *) ego_;
- const problem_dft *p;
- P *pln;
-
- static const plan_adt padt = {
- X(dft_solve), X(null_awake), print, X(plan_null_destroy)
- };
-
- UNUSED(plnr);
-
- if (!applicable(ego_, p_))
- return (plan *) 0;
-
- p = (const problem_dft *) p_;
- pln = MKPLAN_DFT(P, &padt, ego->adt->apply);
-
- X(tensor_tornk1)(p->vecsz, &pln->vl, &pln->ivs, &pln->ovs);
- pln->slv = ego;
-
- /* 2*vl loads, 2*vl stores */
- X(ops_other)(4 * pln->vl, &pln->super.super.ops);
- return &(pln->super.super);
-}
-
-static solver *mksolver(const rnk0adt *adt)
-{
- static const solver_adt sadt = { mkplan };
- S *slv = MKSOLVER(S, &sadt);
- slv->adt = adt;
- return &(slv->super);
-}
-
-void X(dft_rank0_register)(planner *p)
-{
- unsigned i;
- static const rnk0adt *const adts[] = {
- &adt_cpy1, &adt_vec, &adt_io1, &adt_io2r, &adt_io2i
- };
-
- for (i = 0; i < sizeof(adts) / sizeof(adts[0]); ++i)
- REGISTER_SOLVER(p, mksolver(adts[i]));
-}
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