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-rw-r--r--src/fftw3/rdft/hc2hc-buf.c245
1 files changed, 0 insertions, 245 deletions
diff --git a/src/fftw3/rdft/hc2hc-buf.c b/src/fftw3/rdft/hc2hc-buf.c
deleted file mode 100644
index 75f761c..0000000
--- a/src/fftw3/rdft/hc2hc-buf.c
+++ /dev/null
@@ -1,245 +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: hc2hc-buf.c,v 1.1 2008/10/17 06:11:29 scuri Exp $ */
-
-/* decimation in time Cooley-Tukey */
-#include "rdft.h"
-#include "hc2hc.h"
-
-/*
- Copy A -> B, where A and B are n0 x n1 complex matrices
- such that the (i0, i1) element has index (i0 * s0 + i1 * s1).
- The imaginary strides are of opposite signs to the real strides.
-*/
-static void cpy(int n0, int n1,
- const R *rA, const R *iA, int sa0, int sa1,
- R *rB, R *iB, int sb0, int sb1)
-{
- int i0, i1;
-
- for (i0 = 0; i0 < n0; ++i0) {
- const R *pra, *pia;
- R *prb, *pib;
- pra = rA; rA += sa0;
- pia = iA; iA -= sa0;
- prb = rB; rB += sb0;
- pib = iB; iB -= sb0;
-
- for (i1 = 0; i1 < n1; ++i1) {
- R xr, xi;
- xr = *pra; pra += sa1;
- xi = *pia; pia -= sa1;
- *prb = xr; prb += sb1;
- *pib = xi; pib -= sb1;
- }
- }
-}
-
-static const R *doit(khc2hc k, R *rA, R *iA, const R *W, int ios, int dist,
- int r, int batchsz, R *buf, stride bufstride)
-{
- cpy(r, batchsz, rA, iA, ios, dist, buf, buf + 2*batchsz*r-1, 1, r);
- W = k(buf, buf + 2*batchsz*r-1, W, bufstride, 2*batchsz + 1, r);
- cpy(r, batchsz, buf, buf + 2*batchsz*r-1, 1, r, rA, iA, ios, dist);
- return W;
-}
-
-#define BATCHSZ 4 /* FIXME: parametrize? */
-
-static void apply_dit(const plan *ego_, R *I, R *O)
-{
- const plan_hc2hc *ego = (const plan_hc2hc *) ego_;
-
- /* two-dimensional r x vl sub-transform: */
- {
- plan_rdft *cld = (plan_rdft *) ego->cld;
- cld->apply((plan *) cld, I, O);
- }
-
- {
- plan_rdft *cld0 = (plan_rdft *) ego->cld0;
- plan_rdft *cldm = (plan_rdft *) ego->cldm;
- int i, j, r = ego->r, m = ego->m, vl = ego->vl;
- int os = ego->os, ovs = ego->ovs, ios = ego->iios;
- R *buf;
-
- STACK_MALLOC(R *, buf, r * BATCHSZ * 2 * sizeof(R));
-
- for (i = 0; i < vl; ++i, O += ovs) {
- R *rA, *iA;
- const R *W;
-
- cld0->apply((plan *) cld0, O, O);
-
- rA = O + os; iA = O + (r * m - 1) * os;
- W = ego->W;
- for (j = (m-1)/2; j >= BATCHSZ; j -= BATCHSZ) {
- W = doit(ego->k, rA, iA, W, ios, os, r, BATCHSZ, buf,
- ego->vs);
- rA += os * (int)BATCHSZ;
- iA -= os * (int)BATCHSZ;
- }
- /* do remaining j calls, if any */
- if (j > 0)
- doit(ego->k, rA, iA, W, ios, os, r, j, buf, ego->vs);
-
- cldm->apply((plan *) cldm, O + os*(m/2), O + os*(m/2));
- }
-
- STACK_FREE(buf);
- }
-}
-
-static void apply_dif(const plan *ego_, R *I, R *O)
-{
- const plan_hc2hc *ego = (const plan_hc2hc *) ego_;
- R *I0 = I;
-
- {
- plan_rdft *cld0 = (plan_rdft *) ego->cld0;
- plan_rdft *cldm = (plan_rdft *) ego->cldm;
- int i, j, r = ego->r, m = ego->m, vl = ego->vl;
- int is = ego->is, ivs = ego->ivs, ios = ego->iios;
- R *buf;
-
- STACK_MALLOC(R *, buf, r * BATCHSZ * 2 * sizeof(R));
-
- for (i = 0; i < vl; ++i, I += ivs) {
- R *rA, *iA;
- const R *W;
-
- cld0->apply((plan *) cld0, I, I);
-
- rA = I + is; iA = I + (r * m - 1) * is;
- W = ego->W;
- for (j = (m-1)/2; j >= BATCHSZ; j -= BATCHSZ) {
- W = doit(ego->k, rA, iA, W, ios, is, r, BATCHSZ, buf,
- ego->vs);
- rA += is * (int)BATCHSZ;
- iA -= is * (int)BATCHSZ;
- }
- /* do remaining j calls, if any */
- if (j > 0)
- doit(ego->k, rA, iA, W, ios, is, r, j, buf, ego->vs);
-
- cldm->apply((plan *) cldm, I + is*(m/2), I + is*(m/2));
- }
-
- STACK_FREE(buf);
- }
-
- /* two-dimensional r x vl sub-transform: */
- {
- plan_rdft *cld = (plan_rdft *) ego->cld;
- cld->apply((plan *) cld, I0, O);
- }
-}
-
-static int applicable0(const solver_hc2hc *ego, const problem *p_,
- const planner *plnr)
-{
- if (X(rdft_hc2hc_applicable)(ego, p_)) {
- const hc2hc_desc *e = ego->desc;
- const problem_rdft *p = (const problem_rdft *) p_;
- iodim *d = p->sz->dims;
- int r = e->radix, m = d[0].n / e->radix;
- return (1
- && (p->kind[0]==R2HC || p->I == p->O || DESTROY_INPUTP(plnr))
- /* check both batch size and remainder */
- && (m < BATCHSZ ||
- (e->genus->okp(e, 0, ((const R *)0)+2*BATCHSZ*r-1, 1,0,
- 2*BATCHSZ + 1, r)))
- && (m < BATCHSZ ||
- (e->genus->okp(e, 0, ((const R *)0)
- + 2*(((m-1)/2) % BATCHSZ)*r-1, 1, 0,
- 2*(((m-1)/2) % BATCHSZ) + 1, r)))
- );
- }
- return 0;
-}
-
-static int applicable(const solver_hc2hc *ego, const problem *p_,
- const planner *plnr)
-{
- const problem_rdft *p;
-
- if (!applicable0(ego, p_, plnr)) return 0;
-
- p = (const problem_rdft *) p_;
-
- /* emulate fftw2 behavior */
- if (NO_VRECURSEP(plnr) && (p->vecsz->rnk > 0)) return 0;
-
- if (NO_UGLYP(plnr) &&
- X(ct_uglyp)(512, p->sz->dims[0].n, ego->desc->radix))
- return 0;
-
- return 1;
-}
-
-static void finish(plan_hc2hc *ego)
-{
- const hc2hc_desc *d = ego->slv->desc;
- opcnt t;
-
- ego->iios = ego->m * (R2HC_KINDP(d->genus->kind) ? ego->os : ego->is);
- ego->vs = X(mkstride)(ego->r, 1);
-
- X(ops_add)(&ego->cld0->ops, &ego->cldm->ops, &t);
- X(ops_madd)(ego->vl, &t, &ego->cld->ops, &ego->super.super.ops);
- ego->super.super.ops.other += 4 * ego->r * ((ego->m - 1)/2) * ego->vl;
- X(ops_madd2)(ego->vl * ((ego->m - 1)/2) / d->genus->vl, &d->ops,
- &ego->super.super.ops);
-}
-
-static plan *mkplan_ditbuf(const solver *ego, const problem *p, planner *plnr)
-{
- static const hc2hcadt adt = {
- sizeof(plan_hc2hc),
- X(rdft_mkcldrn_dit), finish, applicable, apply_dit
- };
- return X(mkplan_rdft_hc2hc)((const solver_hc2hc *) ego, p, plnr, &adt);
-}
-
-solver *X(mksolver_rdft_hc2hc_ditbuf)(khc2hc codelet, const hc2hc_desc *desc)
-{
- static const solver_adt sadt = { mkplan_ditbuf };
- static const char name[] = "rdft-ditbuf";
-
- return X(mksolver_rdft_hc2hc)(codelet, desc, name, &sadt);
-}
-
-static plan *mkplan_difbuf(const solver *ego, const problem *p, planner *plnr)
-{
- static const hc2hcadt adt = {
- sizeof(plan_hc2hc),
- X(rdft_mkcldrn_dif), finish, applicable, apply_dif
- };
- return X(mkplan_rdft_hc2hc)((const solver_hc2hc *) ego, p, plnr, &adt);
-}
-
-solver *X(mksolver_rdft_hc2hc_difbuf)(khc2hc codelet, const hc2hc_desc *desc)
-{
- static const solver_adt sadt = { mkplan_difbuf };
- static const char name[] = "rdft-difbuf";
-
- return X(mksolver_rdft_hc2hc)(codelet, desc, name, &sadt);
-}
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