122 lines
3.5 KiB
C
122 lines
3.5 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
|
|
*
|
|
*/
|
|
|
|
|
|
#include "dft/dft.h"
|
|
#include <stddef.h>
|
|
|
|
static void destroy(problem *ego_)
|
|
{
|
|
problem_dft *ego = (problem_dft *) ego_;
|
|
X(tensor_destroy2)(ego->vecsz, ego->sz);
|
|
X(ifree)(ego_);
|
|
}
|
|
|
|
static void hash(const problem *p_, md5 *m)
|
|
{
|
|
const problem_dft *p = (const problem_dft *) p_;
|
|
X(md5puts)(m, "dft");
|
|
X(md5int)(m, p->ri == p->ro);
|
|
X(md5INT)(m, p->ii - p->ri);
|
|
X(md5INT)(m, p->io - p->ro);
|
|
X(md5int)(m, X(ialignment_of)(p->ri));
|
|
X(md5int)(m, X(ialignment_of)(p->ii));
|
|
X(md5int)(m, X(ialignment_of)(p->ro));
|
|
X(md5int)(m, X(ialignment_of)(p->io));
|
|
X(tensor_md5)(m, p->sz);
|
|
X(tensor_md5)(m, p->vecsz);
|
|
}
|
|
|
|
static void print(const problem *ego_, printer *p)
|
|
{
|
|
const problem_dft *ego = (const problem_dft *) ego_;
|
|
p->print(p, "(dft %d %d %d %D %D %T %T)",
|
|
ego->ri == ego->ro,
|
|
X(ialignment_of)(ego->ri),
|
|
X(ialignment_of)(ego->ro),
|
|
(INT)(ego->ii - ego->ri),
|
|
(INT)(ego->io - ego->ro),
|
|
ego->sz,
|
|
ego->vecsz);
|
|
}
|
|
|
|
static void zero(const problem *ego_)
|
|
{
|
|
const problem_dft *ego = (const problem_dft *) ego_;
|
|
tensor *sz = X(tensor_append)(ego->vecsz, ego->sz);
|
|
X(dft_zerotens)(sz, UNTAINT(ego->ri), UNTAINT(ego->ii));
|
|
X(tensor_destroy)(sz);
|
|
}
|
|
|
|
static const problem_adt padt =
|
|
{
|
|
PROBLEM_DFT,
|
|
hash,
|
|
zero,
|
|
print,
|
|
destroy
|
|
};
|
|
|
|
problem *X(mkproblem_dft)(const tensor *sz, const tensor *vecsz,
|
|
R *ri, R *ii, R *ro, R *io)
|
|
{
|
|
problem_dft *ego;
|
|
|
|
/* enforce pointer equality if untainted pointers are equal */
|
|
if (UNTAINT(ri) == UNTAINT(ro))
|
|
ri = ro = JOIN_TAINT(ri, ro);
|
|
if (UNTAINT(ii) == UNTAINT(io))
|
|
ii = io = JOIN_TAINT(ii, io);
|
|
|
|
/* more correctness conditions: */
|
|
A(TAINTOF(ri) == TAINTOF(ii));
|
|
A(TAINTOF(ro) == TAINTOF(io));
|
|
|
|
A(X(tensor_kosherp)(sz));
|
|
A(X(tensor_kosherp)(vecsz));
|
|
|
|
if (ri == ro || ii == io) {
|
|
/* If either real or imag pointers are in place, both must be. */
|
|
if (ri != ro || ii != io || !X(tensor_inplace_locations)(sz, vecsz))
|
|
return X(mkproblem_unsolvable)();
|
|
}
|
|
|
|
ego = (problem_dft *)X(mkproblem)(sizeof(problem_dft), &padt);
|
|
|
|
ego->sz = X(tensor_compress)(sz);
|
|
ego->vecsz = X(tensor_compress_contiguous)(vecsz);
|
|
ego->ri = ri;
|
|
ego->ii = ii;
|
|
ego->ro = ro;
|
|
ego->io = io;
|
|
|
|
A(FINITE_RNK(ego->sz->rnk));
|
|
return &(ego->super);
|
|
}
|
|
|
|
/* Same as X(mkproblem_dft), but also destroy input tensors. */
|
|
problem *X(mkproblem_dft_d)(tensor *sz, tensor *vecsz,
|
|
R *ri, R *ii, R *ro, R *io)
|
|
{
|
|
problem *p = X(mkproblem_dft)(sz, vecsz, ri, ii, ro, io);
|
|
X(tensor_destroy2)(vecsz, sz);
|
|
return p;
|
|
}
|