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/*
* Copyright (c) 2002, 2017 Jens Keiner, Stefan Kunis, Daniel Potts
*
* 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 "config.h"
#include "nfft3.h"
#include "infft.h"
#include "imex.h"
int nfft_mex_get_int(const mxArray *p, const char *errmsg)
{
DM(if (!mxIsDouble(p) || mxIsComplex(p) || mxGetM(p) != 1 || mxGetN(p) != 1)
mexErrMsgTxt(errmsg);)
return mxGetScalar(p);
}
double nfft_mex_get_double(const mxArray *p, const char *errmsg)
{
DM(if (!mxIsDouble(p) || mxIsComplex(p) || mxGetM(p) != 1 || mxGetN(p) != 1)
mexErrMsgTxt(errmsg);)
return mxGetScalar(p);
}
void nfft_mex_get_nm(const mxArray *prhs[], int *n, int *m)
{
int t = nfft_mex_get_int(prhs[1],"Input argument N must be a scalar.");
DM(if ((t < 0) || (t%2!=0))
mexErrMsgTxt("Input argument N must be non-negative and multiple of two.");)
*n = t;
t = nfft_mex_get_int(prhs[2],"Input argument M must be a scalar.");
DM(if (t < 1)
mexErrMsgTxt("Input argument M must be positive.");)
*m = t;
}
void nfft_mex_get_nm_odd(const mxArray *prhs[], int *n, int *m)
{
int t = nfft_mex_get_int(prhs[1],"Input argument N must be a scalar.");
DM(if (t < 0)
mexErrMsgTxt("Input argument N must be non-negative.");)
*n = t;
t = nfft_mex_get_int(prhs[2],"Input argument M must be a scalar.");
DM(if (t < 1)
mexErrMsgTxt("Input argument M must be positive.");)
*m = t;
}
void nfft_mex_get_n1n2m(const mxArray *prhs[], int *n1, int *n2, int *m)
{
int t = nfft_mex_get_int(prhs[1],"Input argument N1 must be a scalar.");
DM(if ((t < 0) || (t%2!=0))
mexErrMsgTxt("Input argument N1 must be non-negative and even.");)
*n1 = t;
t = nfft_mex_get_int(prhs[2],"Input argument N2 must be a scalar.");
DM(if ((t < 0) || (t%2!=0))
mexErrMsgTxt("Input argument N2 must be non-negative and even.");)
*n2 = t;
t = nfft_mex_get_int(prhs[3],"Input argument M must be a scalar.");
DM(if (t < 1)
mexErrMsgTxt("Input argument M must be positive.");)
*m = t;
}
void nfft_mex_get_n1n2m_odd(const mxArray *prhs[], int *n1, int *n2, int *m)
{
int t = nfft_mex_get_int(prhs[1],"Input argument N1 must be a scalar.");
DM(if (t < 0)
mexErrMsgTxt("Input argument N1 must be non-negative.");)
*n1 = t;
t = nfft_mex_get_int(prhs[2],"Input argument N2 must be a scalar.");
DM(if (t < 0)
mexErrMsgTxt("Input argument N2 must be non-negative.");)
*n2 = t;
t = nfft_mex_get_int(prhs[3],"Input argument M must be a scalar.");
DM(if (t < 1)
mexErrMsgTxt("Input argument M must be positive.");)
*m = t;
}
void nfft_mex_get_n1n2n3m(const mxArray *prhs[], int *n1, int *n2, int *n3, int *m)
{
int t = nfft_mex_get_int(prhs[1],"Input argument N1 must be a scalar.");
DM(if ((t < 0) || (t%2!=0))
mexErrMsgTxt("Input argument N1 must be non-negative and even.");)
*n1 = t;
t = nfft_mex_get_int(prhs[2],"Input argument N2 must be a scalar.");
DM(if ((t < 0) || (t%2!=0))
mexErrMsgTxt("Input argument N2 must be non-negative and even.");)
*n2 = t;
t = nfft_mex_get_int(prhs[3],"Input argument N3 must be a scalar.");
DM(if ((t < 0) || (t%2!=0))
mexErrMsgTxt("Input argument N3 must be non-negative and even.");)
*n3 = t;
t = nfft_mex_get_int(prhs[4],"Input argument M must be a scalar.");
DM(if (t < 1)
mexErrMsgTxt("Input argument M must be positive.");)
*m = t;
}
void nfft_mex_get_n1n2n3m_odd(const mxArray *prhs[], int *n1, int *n2, int *n3, int *m)
{
int t = nfft_mex_get_int(prhs[1],"Input argument N1 must be a scalar.");
DM(if (t < 0)
mexErrMsgTxt("Input argument N1 must be non-negative.");)
*n1 = t;
t = nfft_mex_get_int(prhs[2],"Input argument N2 must be a scalar.");
DM(if (t < 0)
mexErrMsgTxt("Input argument N2 must be non-negative.");)
*n2 = t;
t = nfft_mex_get_int(prhs[3],"Input argument N3 must be a scalar.");
DM(if (t < 0)
mexErrMsgTxt("Input argument N3 must be non-negative.");)
*n3 = t;
t = nfft_mex_get_int(prhs[4],"Input argument M must be a scalar.");
DM(if (t < 1)
mexErrMsgTxt("Input argument M must be positive.");)
*m = t;
}
void nfft_mex_check_nargs(const int nrhs, const int n, const char* errmsg)
{
DM(if (nrhs != n)
mexErrMsgTxt(errmsg);)
}
int nfft_mex_set_num_threads_check(const int nrhs, const mxArray *prhs[], void **plans, const int plans_num_allocated)
{
nfft_mex_check_nargs(nrhs,2,"Wrong number of arguments for set_num_threads.");
int nthreads_new = nfft_mex_get_int(prhs[1],"Input argument nthreads must be a scalar.");
if (nthreads_new < 1)
mexErrMsgTxt("Number of threads must be at least 1.");
if (nthreads_new > 1 && !X(has_threads_enabled)())
mexErrMsgTxt("Threads are not enabled.");
int nthreads_old = X(get_num_threads)();
if (nthreads_new != nthreads_old)
{
int i;
int is_plan_allocated = 0;
for (i = 0; i < plans_num_allocated; i++)
if (plans[i] != 0)
{
is_plan_allocated = 1;
break;
}
if (is_plan_allocated)
mexWarnMsgIdAndTxt("nfft:set_num_threads:plansAllocated","At least one plan is allocated. New number of threads may not affect the FFT step of any allocated plans.");
}
return nthreads_new;
}
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