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/*********************************************************************
Convolve - Convolve input data with a given kernel.
Convolve is part of GNU Astronomy Utilities (Gnuastro) package.
Original author:
Mohammad Akhlaghi <mohammad@akhlaghi.org>
Contributing author(s):
Copyright (C) 2015-2025 Free Software Foundation, Inc.
Gnuastro 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 3 of the License, or (at your
option) any later version.
Gnuastro 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 Gnuastro. If not, see <http://www.gnu.org/licenses/>.
**********************************************************************/
#ifndef CONVOLVE_H
#define CONVOLVE_H
#include <gnuastro/threads.h>
#include <gsl/gsl_fft_complex.h>
struct fftonthreadparams
{
/* Operating info: */
size_t id; /* The number of this thread. */
struct convolveparams *p; /* Pointer to main program structure. */
int forward1backwardn1; /* Operate on one or two images. */
size_t stride; /* 1D FFT on rows or columns? */
/* Pointers to GSL FFT structures: */
gsl_fft_complex_wavetable *ps0wave;
gsl_fft_complex_wavetable *ps1wave;
gsl_fft_complex_workspace *ps0work;
gsl_fft_complex_workspace *ps1work;
/* Thread parameters. */
size_t *indexs; /* Indexs to be used in this thread. */
pthread_barrier_t *b; /* Barrier to keep threads waiting. */
};
void
convolve(struct convolveparams *p);
#endif
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