diff options
Diffstat (limited to 'src/fftw3/rdft/hc2hc-dif.c')
| -rw-r--r-- | src/fftw3/rdft/hc2hc-dif.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/src/fftw3/rdft/hc2hc-dif.c b/src/fftw3/rdft/hc2hc-dif.c deleted file mode 100644 index 2bcdca2..0000000 --- a/src/fftw3/rdft/hc2hc-dif.c +++ /dev/null @@ -1,124 +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-dif.c,v 1.1 2008/10/17 06:11:29 scuri Exp $ */ - -/* decimation in frequency Cooley-Tukey */ -#include "rdft.h" -#include "hc2hc.h" - -static void apply(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, r = ego->r, m = ego->m, vl = ego->vl; - int is = ego->is, ivs = ego->ivs; - - for (i = 0; i < vl; ++i, I += ivs) { - cld0->apply((plan *) cld0, I, I); - ego->k(I + is, I + (r * m - 1) * is, ego->W, ego->ios, m, is); - cldm->apply((plan *) cldm, I + is*(m/2), I + is*(m/2)); - } - } - - /* 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_)) { - int ivs, ovs; - int vl; - const hc2hc_desc *e = ego->desc; - const problem_rdft *p = (const problem_rdft *) p_; - iodim *d = p->sz->dims; - int m = d[0].n / e->radix; - X(tensor_tornk1)(p->vecsz, &vl, &ivs, &ovs); - return (1 - && (p->I == p->O || DESTROY_INPUTP(plnr)) - && (e->genus->okp(e, p->I + d[0].is, - p->I + (e->radix * m - 1) * d[0].is, - (int)m * d[0].is, 0, m, d[0].is)) - && (e->genus->okp(e, p->I + ivs + d[0].is, - p->I + ivs + (e->radix * m - 1) * d[0].is, - (int)m * d[0].is, 0, m, d[0].is)) - ); - } - 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)) { - if (X(ct_uglyp)(16, p->sz->dims[0].n, ego->desc->radix)) return 0; - if (NONTHREADED_ICKYP(plnr)) return 0; /* prefer threaded version */ - } - return 1; -} - -static void finish(plan_hc2hc *ego) -{ - const hc2hc_desc *d = ego->slv->desc; - opcnt t; - - ego->ios = X(mkstride)(ego->r, ego->m * ego->is); - - X(ops_add)(&ego->cld0->ops, &ego->cldm->ops, &t); - X(ops_madd)(ego->vl, &t, &ego->cld->ops, &ego->super.super.ops); - X(ops_madd2)(ego->vl * ((ego->m - 1)/2) / d->genus->vl, &d->ops, - &ego->super.super.ops); -} - -static plan *mkplan(const solver *ego, const problem *p, planner *plnr) -{ - static const hc2hcadt adt = { - sizeof(plan_hc2hc), - X(rdft_mkcldrn_dif), finish, applicable, apply - }; - return X(mkplan_rdft_hc2hc)((const solver_hc2hc *) ego, p, plnr, &adt); -} - - -solver *X(mksolver_rdft_hc2hc_dif)(khc2hc codelet, const hc2hc_desc *desc) -{ - static const solver_adt sadt = { mkplan }; - static const char name[] = "rdft-dif"; - - return X(mksolver_rdft_hc2hc)(codelet, desc, name, &sadt); -} |