146 lines
3.4 KiB
C
146 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 2003, 2007-14 Matteo Frigo
|
|
* Copyright (c) 2003, 2007-14 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
|
|
/* direct RDFT solver, using r2r codelets */
|
|
|
|
#include "rdft/rdft.h"
|
|
|
|
typedef struct {
|
|
solver super;
|
|
const kr2r_desc *desc;
|
|
kr2r k;
|
|
} S;
|
|
|
|
typedef struct {
|
|
plan_rdft super;
|
|
|
|
INT vl, ivs, ovs;
|
|
stride is, os;
|
|
kr2r k;
|
|
const S *slv;
|
|
} P;
|
|
|
|
static void apply(const plan *ego_, R *I, R *O)
|
|
{
|
|
const P *ego = (const P *) ego_;
|
|
ASSERT_ALIGNED_DOUBLE;
|
|
ego->k(I, O, ego->is, ego->os, ego->vl, ego->ivs, ego->ovs);
|
|
}
|
|
|
|
static void destroy(plan *ego_)
|
|
{
|
|
P *ego = (P *) ego_;
|
|
X(stride_destroy)(ego->is);
|
|
X(stride_destroy)(ego->os);
|
|
}
|
|
|
|
static void print(const plan *ego_, printer *p)
|
|
{
|
|
const P *ego = (const P *) ego_;
|
|
const S *s = ego->slv;
|
|
|
|
p->print(p, "(rdft-%s-direct-r2r-%D%v \"%s\")",
|
|
X(rdft_kind_str)(s->desc->kind), s->desc->n,
|
|
ego->vl, s->desc->nam);
|
|
}
|
|
|
|
static int applicable(const solver *ego_, const problem *p_)
|
|
{
|
|
const S *ego = (const S *) ego_;
|
|
const problem_rdft *p = (const problem_rdft *) p_;
|
|
INT vl;
|
|
INT ivs, ovs;
|
|
|
|
return (
|
|
1
|
|
&& p->sz->rnk == 1
|
|
&& p->vecsz->rnk <= 1
|
|
&& p->sz->dims[0].n == ego->desc->n
|
|
&& p->kind[0] == ego->desc->kind
|
|
|
|
/* check strides etc */
|
|
&& X(tensor_tornk1)(p->vecsz, &vl, &ivs, &ovs)
|
|
|
|
&& (0
|
|
/* can operate out-of-place */
|
|
|| p->I != p->O
|
|
|
|
/* computing one transform */
|
|
|| vl == 1
|
|
|
|
/* can operate in-place as long as strides are the same */
|
|
|| X(tensor_inplace_strides2)(p->sz, p->vecsz)
|
|
)
|
|
);
|
|
}
|
|
|
|
static plan *mkplan(const solver *ego_, const problem *p_, planner *plnr)
|
|
{
|
|
const S *ego = (const S *) ego_;
|
|
P *pln;
|
|
const problem_rdft *p;
|
|
iodim *d;
|
|
|
|
static const plan_adt padt = {
|
|
X(rdft_solve), X(null_awake), print, destroy
|
|
};
|
|
|
|
UNUSED(plnr);
|
|
|
|
if (!applicable(ego_, p_))
|
|
return (plan *)0;
|
|
|
|
p = (const problem_rdft *) p_;
|
|
|
|
|
|
pln = MKPLAN_RDFT(P, &padt, apply);
|
|
|
|
d = p->sz->dims;
|
|
|
|
pln->k = ego->k;
|
|
|
|
pln->is = X(mkstride)(d->n, d->is);
|
|
pln->os = X(mkstride)(d->n, d->os);
|
|
|
|
X(tensor_tornk1)(p->vecsz, &pln->vl, &pln->ivs, &pln->ovs);
|
|
|
|
pln->slv = ego;
|
|
X(ops_zero)(&pln->super.super.ops);
|
|
X(ops_madd2)(pln->vl / ego->desc->genus->vl,
|
|
&ego->desc->ops,
|
|
&pln->super.super.ops);
|
|
|
|
pln->super.super.could_prune_now_p = 1;
|
|
|
|
return &(pln->super.super);
|
|
}
|
|
|
|
/* constructor */
|
|
solver *X(mksolver_rdft_r2r_direct)(kr2r k, const kr2r_desc *desc)
|
|
{
|
|
static const solver_adt sadt = { PROBLEM_RDFT, mkplan, 0 };
|
|
S *slv = MKSOLVER(S, &sadt);
|
|
slv->k = k;
|
|
slv->desc = desc;
|
|
return &(slv->super);
|
|
}
|
|
|