summaryrefslogtreecommitdiff
path: root/src/fftw3/dft/ct-ditf.c
diff options
context:
space:
mode:
authorscuri <scuri>2009-08-20 12:35:06 +0000
committerscuri <scuri>2009-08-20 12:35:06 +0000
commit5d735255ddd3cb2f547abd3d03969af3fb7eb04e (patch)
tree8fb66510bc625bb1b08ccb41f1b83fb0f7cb8f19 /src/fftw3/dft/ct-ditf.c
parent35733b87eed86e5228f12fa10c98a3d9d22a6073 (diff)
*** empty log message ***
Diffstat (limited to 'src/fftw3/dft/ct-ditf.c')
-rw-r--r--src/fftw3/dft/ct-ditf.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/src/fftw3/dft/ct-ditf.c b/src/fftw3/dft/ct-ditf.c
deleted file mode 100644
index 10823ab..0000000
--- a/src/fftw3/dft/ct-ditf.c
+++ /dev/null
@@ -1,105 +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: ct-ditf.c,v 1.1 2008/10/17 06:11:08 scuri Exp $ */
-
-/* decimation in time Cooley-Tukey */
-#include "dft.h"
-#include "ct.h"
-
-static void apply(const plan *ego_, R *ri, R *ii, R *ro, R *io)
-{
- const plan_ct *ego = (const plan_ct *) ego_;
- plan *cld0 = ego->cld;
- plan_dft *cld = (plan_dft *) cld0;
-
- UNUSED(ro); /* == ri */
- UNUSED(io); /* == ii */
- ego->k.difsq(ri, ii, ego->td->W, ego->ios, ego->vs, ego->m, ego->is);
-
- /* two-dimensional r x vl sub-transform: */
- cld->apply(cld0, ri, ii, ri, ii);
-}
-
-static int applicable(const solver_ct *ego, const problem *p_,
- const planner *plnr)
-{
- UNUSED(plnr);
- if (X(dft_ct_applicable)(ego, p_)) {
- const ct_desc *e = ego->desc;
- const problem_dft *p = (const problem_dft *) p_;
- iodim *d = p->sz->dims, *vd = p->vecsz->dims;
- int m = d[0].n / e->radix;
-
- return (1
- && p->ri == p->ro /* inplace only */
- && p->vecsz->rnk == 1
- && vd[0].n == e->radix
- && d[0].os == vd[0].is
- && d[0].is == (int)e->radix * vd[0].is
- && vd[0].os == (int)d[0].n * vd[0].is
-
- && (e->genus->okp(e, p->ri, p->ii,
- vd[0].os, vd[0].is, m, d[0].is, plnr))
- );
- }
- return 0;
-}
-
-static void finish(plan_ct *ego)
-{
- const ct_desc *d = ego->slv->desc;
- ego->ios = X(mkstride)(ego->r, ego->ovs);
- ego->vs = X(mkstride)(ego->r, ego->ivs);
- X(ops_madd)(ego->m / d->genus->vl, &ego->slv->desc->ops,
- &ego->cld->ops, &ego->super.super.ops);
-}
-
-static problem *mkcld(const solver_ct *ego, const problem_dft *p)
-{
- iodim *d = p->sz->dims;
- iodim *vd = p->vecsz->dims;
- const ct_desc *e = ego->desc;
-
- return X(mkproblem_dft_d)(
- X(mktensor_1d)(d[0].n / e->radix, d[0].is, d[0].is),
- X(mktensor_2d)(vd[0].n, vd[0].os, vd[0].os,
- e->radix, vd[0].is,vd[0].is),
- p->ro, p->io, p->ro, p->io);
-}
-
-static plan *mkplan(const solver *ego, const problem *p, planner *plnr)
-{
- static const ctadt adt = {
- sizeof(plan_ct), mkcld, finish, applicable, apply
- };
- return X(mkplan_dft_ct)((const solver_ct *) ego, p, plnr, &adt);
-}
-
-
-solver *X(mksolver_dft_ct_ditf)(kdft_difsq codelet, const ct_desc *desc)
-{
- static const solver_adt sadt = { mkplan };
- static const char name[] = "dft-ditf";
- union kct k;
- k.difsq = codelet;
-
- return X(mksolver_dft_ct)(k, desc, name, &sadt);
-}