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GUI: try using FFTW for per-chan osc wave center

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not reliable yet
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tildearrow 2022-05-31 03:24:29 -05:00
parent c306b33603
commit 54e93db207
3504 changed files with 492683 additions and 21 deletions
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104
extern/fftw/kernel/tensor4.c vendored Normal file
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/*
* 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 "kernel/ifftw.h"
INT X(tensor_max_index)(const tensor *sz)
{
int i;
INT ni = 0, no = 0;
A(FINITE_RNK(sz->rnk));
for (i = 0; i < sz->rnk; ++i) {
const iodim *p = sz->dims + i;
ni += (p->n - 1) * X(iabs)(p->is);
no += (p->n - 1) * X(iabs)(p->os);
}
return X(imax)(ni, no);
}
#define tensor_min_xstride(sz, xs) { \
A(FINITE_RNK(sz->rnk)); \
if (sz->rnk == 0) return 0; \
else { \
int i; \
INT s = X(iabs)(sz->dims[0].xs); \
for (i = 1; i < sz->rnk; ++i) \
s = X(imin)(s, X(iabs)(sz->dims[i].xs)); \
return s; \
} \
}
INT X(tensor_min_istride)(const tensor *sz) tensor_min_xstride(sz, is)
INT X(tensor_min_ostride)(const tensor *sz) tensor_min_xstride(sz, os)
INT X(tensor_min_stride)(const tensor *sz)
{
return X(imin)(X(tensor_min_istride)(sz), X(tensor_min_ostride)(sz));
}
int X(tensor_inplace_strides)(const tensor *sz)
{
int i;
A(FINITE_RNK(sz->rnk));
for (i = 0; i < sz->rnk; ++i) {
const iodim *p = sz->dims + i;
if (p->is != p->os)
return 0;
}
return 1;
}
int X(tensor_inplace_strides2)(const tensor *a, const tensor *b)
{
return X(tensor_inplace_strides(a)) && X(tensor_inplace_strides(b));
}
/* return true (1) iff *any* strides of sz decrease when we
tensor_inplace_copy(sz, k). */
static int tensor_strides_decrease(const tensor *sz, inplace_kind k)
{
if (FINITE_RNK(sz->rnk)) {
int i;
for (i = 0; i < sz->rnk; ++i)
if ((sz->dims[i].os - sz->dims[i].is)
* (k == INPLACE_OS ? (INT)1 : (INT)-1) < 0)
return 1;
}
return 0;
}
/* Return true (1) iff *any* strides of sz decrease when we
tensor_inplace_copy(k) *or* if *all* strides of sz are unchanged
but *any* strides of vecsz decrease. This is used in indirect.c
to determine whether to use INPLACE_IS or INPLACE_OS.
Note: X(tensor_strides_decrease)(sz, vecsz, INPLACE_IS)
|| X(tensor_strides_decrease)(sz, vecsz, INPLACE_OS)
|| X(tensor_inplace_strides2)(p->sz, p->vecsz)
must always be true. */
int X(tensor_strides_decrease)(const tensor *sz, const tensor *vecsz,
inplace_kind k)
{
return(tensor_strides_decrease(sz, k)
|| (X(tensor_inplace_strides)(sz)
&& tensor_strides_decrease(vecsz, k)));
}