124 lines
3 KiB
C
124 lines
3 KiB
C
/*
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* Copyright (c) 2003, 2007-14 Matteo Frigo
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* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "kernel/ifftw.h"
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tensor *X(mktensor)(int rnk)
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{
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tensor *x;
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A(rnk >= 0);
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#if defined(STRUCT_HACK_KR)
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if (FINITE_RNK(rnk) && rnk > 1)
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x = (tensor *)MALLOC(sizeof(tensor) + (unsigned)(rnk - 1) * sizeof(iodim),
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TENSORS);
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else
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x = (tensor *)MALLOC(sizeof(tensor), TENSORS);
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#elif defined(STRUCT_HACK_C99)
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if (FINITE_RNK(rnk))
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x = (tensor *)MALLOC(sizeof(tensor) + (unsigned)rnk * sizeof(iodim),
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TENSORS);
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else
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x = (tensor *)MALLOC(sizeof(tensor), TENSORS);
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#else
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x = (tensor *)MALLOC(sizeof(tensor), TENSORS);
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if (FINITE_RNK(rnk) && rnk > 0)
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x->dims = (iodim *)MALLOC(sizeof(iodim) * (unsigned)rnk, TENSORS);
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else
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x->dims = 0;
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#endif
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x->rnk = rnk;
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return x;
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}
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void X(tensor_destroy)(tensor *sz)
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{
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#if !defined(STRUCT_HACK_C99) && !defined(STRUCT_HACK_KR)
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X(ifree0)(sz->dims);
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#endif
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X(ifree)(sz);
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}
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INT X(tensor_sz)(const tensor *sz)
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{
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int i;
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INT n = 1;
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if (!FINITE_RNK(sz->rnk))
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return 0;
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for (i = 0; i < sz->rnk; ++i)
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n *= sz->dims[i].n;
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return n;
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}
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void X(tensor_md5)(md5 *p, const tensor *t)
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{
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int i;
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X(md5int)(p, t->rnk);
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if (FINITE_RNK(t->rnk)) {
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for (i = 0; i < t->rnk; ++i) {
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const iodim *q = t->dims + i;
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X(md5INT)(p, q->n);
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X(md5INT)(p, q->is);
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X(md5INT)(p, q->os);
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}
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}
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}
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/* treat a (rank <= 1)-tensor as a rank-1 tensor, extracting
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appropriate n, is, and os components */
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int X(tensor_tornk1)(const tensor *t, INT *n, INT *is, INT *os)
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{
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A(t->rnk <= 1);
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if (t->rnk == 1) {
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const iodim *vd = t->dims;
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*n = vd[0].n;
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*is = vd[0].is;
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*os = vd[0].os;
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} else {
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*n = 1;
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*is = *os = 0;
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}
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return 1;
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}
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void X(tensor_print)(const tensor *x, printer *p)
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{
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if (FINITE_RNK(x->rnk)) {
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int i;
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int first = 1;
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p->print(p, "(");
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for (i = 0; i < x->rnk; ++i) {
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const iodim *d = x->dims + i;
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p->print(p, "%s(%D %D %D)",
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first ? "" : " ",
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d->n, d->is, d->os);
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first = 0;
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}
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p->print(p, ")");
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} else {
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p->print(p, "rank-minfty");
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}
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}
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