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Diffstat (limited to 'src/fftw3/rdft/hc2hc.c')
-rw-r--r--src/fftw3/rdft/hc2hc.c222
1 files changed, 0 insertions, 222 deletions
diff --git a/src/fftw3/rdft/hc2hc.c b/src/fftw3/rdft/hc2hc.c
deleted file mode 100644
index 926273c..0000000
--- a/src/fftw3/rdft/hc2hc.c
+++ /dev/null
@@ -1,222 +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.c,v 1.1 2008/10/17 06:11:29 scuri Exp $ */
-
-/* generic Cooley-Tukey routines */
-#include "rdft.h"
-#include "hc2hc.h"
-
-static void destroy(plan *ego_)
-{
- plan_hc2hc *ego = (plan_hc2hc *) ego_;
-
- X(plan_destroy_internal)(ego->cld);
- X(plan_destroy_internal)(ego->cld0);
- X(plan_destroy_internal)(ego->cldm);
- X(stride_destroy)(ego->ios);
- X(stride_destroy)(ego->vs);
-}
-
-static void awake(plan *ego_, int flg)
-{
- plan_hc2hc *ego = (plan_hc2hc *) ego_;
-
- AWAKE(ego->cld, flg);
- AWAKE(ego->cld0, flg);
- AWAKE(ego->cldm, flg);
-
- if (flg) {
- const tw_instr *tw = ego->slv->desc->tw;
- X(mktwiddle)(&ego->td, tw, ego->n, ego->r, (ego->m + 1) / 2);
- /* 0th twiddle is handled by cld0: */
- ego->W = ego->td->W + X(twiddle_length)(ego->r, tw);
- } else {
- X(twiddle_destroy)(&ego->td);
- ego->W = 0;
- }
-}
-
-static void print(const plan *ego_, printer *p)
-{
- const plan_hc2hc *ego = (const plan_hc2hc *) ego_;
- const solver_hc2hc *slv = ego->slv;
- const hc2hc_desc *e = slv->desc;
-
- p->print(p, "(%s-%d/%d%v \"%s\"%(%p%)%(%p%)%(%p%))",
- slv->nam, ego->r, X(twiddle_length)(ego->r, e->tw),
- ego->vl, e->nam, ego->cld0, ego->cldm, ego->cld);
-}
-
-#define divides(a, b) (((int)(b) % (int)(a)) == 0)
-
-int X(rdft_hc2hc_applicable)(const solver_hc2hc *ego, const problem *p_)
-{
- if (RDFTP(p_)) {
- const problem_rdft *p = (const problem_rdft *) p_;
- const hc2hc_desc *d = ego->desc;
- return (1
- && p->sz->rnk == 1
- && p->vecsz->rnk <= 1
- && p->kind[0] == d->genus->kind
- && divides(d->radix, p->sz->dims[0].n)
- && d->radix < p->sz->dims[0].n /* avoid inf. loops in cld0 */
- );
- }
- return 0;
-}
-
-
-static const plan_adt padt =
-{
- X(rdft_solve),
- awake,
- print,
- destroy
-};
-
-plan *X(mkplan_rdft_hc2hc)(const solver_hc2hc *ego,
- const problem *p_,
- planner *plnr,
- const hc2hcadt *adt)
-{
- plan_hc2hc *pln;
- plan *cld = 0, *cld0 = 0, *cldm = 0;
- int n, r, m;
- problem *cldp = 0, *cld0p = 0, *cldmp = 0;
- iodim *d;
- const problem_rdft *p;
- const hc2hc_desc *e = ego->desc;
-
- if (!adt->applicable(ego, p_, plnr))
- return (plan *) 0;
-
- p = (const problem_rdft *) p_;
- d = p->sz->dims;
- n = d[0].n;
- r = e->radix;
- m = n / r;
-
- adt->mkcldrn(ego, p, &cldp, &cld0p, &cldmp);
-
- cld = X(mkplan_d)(plnr, cldp); cldp = 0;
- if (!cld) goto nada;
-
- cld0 = X(mkplan_d)(plnr, cld0p); cld0p = 0;
- if (!cld0) goto nada;
-
- cldm = X(mkplan_d)(plnr, cldmp); cldmp = 0;
- if (!cldm) goto nada;
-
- A(adt->pln_size >= sizeof(plan_hc2hc));
- pln = (plan_hc2hc *) X(mkplan_rdft)(adt->pln_size, &padt, adt->apply);
-
- pln->slv = ego;
- pln->cld = cld;
- pln->cld0 = cld0;
- pln->cldm = cldm;
- pln->k = ego->k;
- pln->n = n;
- pln->r = r;
- pln->m = m;
-
- pln->is = d[0].is;
- pln->os = d[0].os;
-
- pln->ios = pln->vs = 0;
- X(tensor_tornk1)(p->vecsz, &pln->vl, &pln->ivs, &pln->ovs);
- pln->td = 0;
- adt->finish(pln);
-
- return &(pln->super.super);
-
- nada:
- X(problem_destroy)(cldmp);
- X(problem_destroy)(cld0p);
- X(problem_destroy)(cldp);
- X(plan_destroy_internal)(cldm);
- X(plan_destroy_internal)(cld0);
- X(plan_destroy_internal)(cld);
- return (plan *) 0;
-}
-
-solver *X(mksolver_rdft_hc2hc)(khc2hc k, const hc2hc_desc *desc,
- const char *nam, const solver_adt *adt)
-{
- solver_hc2hc *slv;
-
- slv = MKSOLVER(solver_hc2hc, adt);
-
- slv->desc = desc;
- slv->k = k;
- slv->nam = nam;
- return &(slv->super);
-}
-
-/* routines to create children are shared by many solvers */
-
-void X(rdft_mkcldrn_dit)(const solver_hc2hc *ego, const problem_rdft *p,
- problem **cldp, problem **cld0p, problem **cldmp)
-{
- iodim *d = p->sz->dims;
- const hc2hc_desc *e = ego->desc;
- int m = d[0].n / e->radix;
- int omid = d[0].os * (m/2);
-
- tensor *null, *radix = X(mktensor_1d)(e->radix, d[0].is, m * d[0].os);
- tensor *cld_vec = X(tensor_append)(radix, p->vecsz);
- X(tensor_destroy)(radix);
- A(p->kind[0] == R2HC);
-
- *cldp = X(mkproblem_rdft_d)(X(mktensor_1d)(m, e->radix*d[0].is, d[0].os),
- cld_vec, p->I, p->O, p->kind);
-
- radix = X(mktensor_1d)(e->radix, m * d[0].os, m * d[0].os);
- null = X(mktensor_0d)();
- *cld0p = X(mkproblem_rdft_1)(radix, null, p->O, p->O, R2HC);
- *cldmp = X(mkproblem_rdft_1)(m%2 ? null : radix, null,
- p->O + omid, p->O + omid, R2HCII);
- X(tensor_destroy2)(null, radix);
-}
-
-
-void X(rdft_mkcldrn_dif)(const solver_hc2hc *ego, const problem_rdft *p,
- problem **cldp, problem **cld0p, problem **cldmp)
-{
- iodim *d = p->sz->dims;
- const hc2hc_desc *e = ego->desc;
- int m = d[0].n / e->radix;
- int imid = d[0].is * (m/2);
-
- tensor *null, *radix = X(mktensor_1d)(e->radix, m * d[0].is, d[0].os);
- tensor *cld_vec = X(tensor_append)(radix, p->vecsz);
- X(tensor_destroy)(radix);
- A(p->kind[0] == HC2R);
-
- *cldp = X(mkproblem_rdft_d)(X(mktensor_1d)(m, d[0].is, e->radix*d[0].os),
- cld_vec, p->I, p->O, p->kind);
-
- radix = X(mktensor_1d)(e->radix, m * d[0].is, m * d[0].is);
- null = X(mktensor_0d)();
- *cld0p = X(mkproblem_rdft_1)(radix, null, p->I, p->I, HC2R);
- *cldmp = X(mkproblem_rdft_1)(m%2 ? null : radix, null,
- p->I + imid, p->I + imid, HC2RIII);
- X(tensor_destroy2)(null, radix);
-}
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