To check out this repository please hg clone the following URL, or open the URL using EasyMercurial or your preferred Mercurial client.
The primary repository for this project is hosted at https://github.com/sonic-visualiser/sv-dependency-builds .
This repository is a read-only copy which is updated automatically every hour.
root / src / fftw-3.3.8 / dft / dftw-directsq.c @ 167:bd3cc4d1df30
History | View | Annotate | Download (3.96 KB)
| 1 |
/*
|
|---|---|
| 2 |
* Copyright (c) 2003, 2007-14 Matteo Frigo
|
| 3 |
* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
|
| 4 |
*
|
| 5 |
* This program is free software; you can redistribute it and/or modify
|
| 6 |
* it under the terms of the GNU General Public License as published by
|
| 7 |
* the Free Software Foundation; either version 2 of the License, or
|
| 8 |
* (at your option) any later version.
|
| 9 |
*
|
| 10 |
* This program is distributed in the hope that it will be useful,
|
| 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
* GNU General Public License for more details.
|
| 14 |
*
|
| 15 |
* You should have received a copy of the GNU General Public License
|
| 16 |
* along with this program; if not, write to the Free Software
|
| 17 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
| 18 |
*
|
| 19 |
*/
|
| 20 |
|
| 21 |
|
| 22 |
#include "dft/ct.h" |
| 23 |
|
| 24 |
typedef struct { |
| 25 |
ct_solver super; |
| 26 |
const ct_desc *desc;
|
| 27 |
kdftwsq k; |
| 28 |
} S; |
| 29 |
|
| 30 |
typedef struct { |
| 31 |
plan_dftw super; |
| 32 |
kdftwsq k; |
| 33 |
INT r; |
| 34 |
stride rs, vs; |
| 35 |
INT m, ms, v, mb, me; |
| 36 |
twid *td; |
| 37 |
const S *slv;
|
| 38 |
} P; |
| 39 |
|
| 40 |
|
| 41 |
static void apply(const plan *ego_, R *rio, R *iio) |
| 42 |
{
|
| 43 |
const P *ego = (const P *) ego_; |
| 44 |
INT mb = ego->mb, ms = ego->ms; |
| 45 |
ego->k(rio + mb*ms, iio + mb*ms, ego->td->W, ego->rs, ego->vs, |
| 46 |
mb, ego->me, ms); |
| 47 |
} |
| 48 |
|
| 49 |
static void awake(plan *ego_, enum wakefulness wakefulness) |
| 50 |
{
|
| 51 |
P *ego = (P *) ego_; |
| 52 |
|
| 53 |
X(twiddle_awake)(wakefulness, &ego->td, ego->slv->desc->tw, |
| 54 |
ego->r * ego->m, ego->r, ego->m); |
| 55 |
} |
| 56 |
|
| 57 |
static void destroy(plan *ego_) |
| 58 |
{
|
| 59 |
P *ego = (P *) ego_; |
| 60 |
X(stride_destroy)(ego->rs); |
| 61 |
X(stride_destroy)(ego->vs); |
| 62 |
} |
| 63 |
|
| 64 |
static void print(const plan *ego_, printer *p) |
| 65 |
{
|
| 66 |
const P *ego = (const P *) ego_; |
| 67 |
const S *slv = ego->slv;
|
| 68 |
const ct_desc *e = slv->desc;
|
| 69 |
|
| 70 |
p->print(p, "(dftw-directsq-%D/%D%v \"%s\")",
|
| 71 |
ego->r, X(twiddle_length)(ego->r, e->tw), ego->v, e->nam); |
| 72 |
} |
| 73 |
|
| 74 |
static int applicable(const S *ego, |
| 75 |
INT r, INT irs, INT ors, |
| 76 |
INT m, INT ms, |
| 77 |
INT v, INT ivs, INT ovs, |
| 78 |
INT mb, INT me, |
| 79 |
R *rio, R *iio, |
| 80 |
const planner *plnr)
|
| 81 |
{
|
| 82 |
const ct_desc *e = ego->desc;
|
| 83 |
UNUSED(v); |
| 84 |
|
| 85 |
return (
|
| 86 |
1
|
| 87 |
&& r == e->radix |
| 88 |
|
| 89 |
/* transpose r, v */
|
| 90 |
&& r == v |
| 91 |
&& irs == ovs |
| 92 |
&& ivs == ors |
| 93 |
|
| 94 |
/* check for alignment/vector length restrictions */
|
| 95 |
&& e->genus->okp(e, rio, iio, irs, ivs, m, mb, me, ms, plnr) |
| 96 |
|
| 97 |
); |
| 98 |
} |
| 99 |
|
| 100 |
static plan *mkcldw(const ct_solver *ego_, |
| 101 |
INT r, INT irs, INT ors, |
| 102 |
INT m, INT ms, |
| 103 |
INT v, INT ivs, INT ovs, |
| 104 |
INT mstart, INT mcount, |
| 105 |
R *rio, R *iio, |
| 106 |
planner *plnr) |
| 107 |
{
|
| 108 |
const S *ego = (const S *) ego_; |
| 109 |
P *pln; |
| 110 |
const ct_desc *e = ego->desc;
|
| 111 |
|
| 112 |
static const plan_adt padt = { |
| 113 |
0, awake, print, destroy
|
| 114 |
}; |
| 115 |
|
| 116 |
A(mstart >= 0 && mstart + mcount <= m);
|
| 117 |
if (!applicable(ego,
|
| 118 |
r, irs, ors, m, ms, v, ivs, ovs, mstart, mstart + mcount, |
| 119 |
rio, iio, plnr)) |
| 120 |
return (plan *)0; |
| 121 |
|
| 122 |
pln = MKPLAN_DFTW(P, &padt, apply); |
| 123 |
|
| 124 |
pln->k = ego->k; |
| 125 |
pln->rs = X(mkstride)(r, irs); |
| 126 |
pln->vs = X(mkstride)(v, ivs); |
| 127 |
pln->td = 0;
|
| 128 |
pln->r = r; |
| 129 |
pln->m = m; |
| 130 |
pln->ms = ms; |
| 131 |
pln->v = v; |
| 132 |
pln->mb = mstart; |
| 133 |
pln->me = mstart + mcount; |
| 134 |
pln->slv = ego; |
| 135 |
|
| 136 |
X(ops_zero)(&pln->super.super.ops); |
| 137 |
X(ops_madd2)(mcount/e->genus->vl, &e->ops, &pln->super.super.ops); |
| 138 |
|
| 139 |
return &(pln->super.super);
|
| 140 |
} |
| 141 |
|
| 142 |
static void regone(planner *plnr, kdftwsq codelet, |
| 143 |
const ct_desc *desc, int dec) |
| 144 |
{
|
| 145 |
S *slv = (S *)X(mksolver_ct)(sizeof(S), desc->radix, dec, mkcldw, 0); |
| 146 |
slv->k = codelet; |
| 147 |
slv->desc = desc; |
| 148 |
REGISTER_SOLVER(plnr, &(slv->super.super)); |
| 149 |
if (X(mksolver_ct_hook)) {
|
| 150 |
slv = (S *)X(mksolver_ct_hook)(sizeof(S), desc->radix, dec,
|
| 151 |
mkcldw, 0);
|
| 152 |
slv->k = codelet; |
| 153 |
slv->desc = desc; |
| 154 |
REGISTER_SOLVER(plnr, &(slv->super.super)); |
| 155 |
} |
| 156 |
} |
| 157 |
|
| 158 |
void X(regsolver_ct_directwsq)(planner *plnr, kdftwsq codelet,
|
| 159 |
const ct_desc *desc, int dec) |
| 160 |
{
|
| 161 |
regone(plnr, codelet, desc, dec+TRANSPOSE); |
| 162 |
} |