120 lines
4.0 KiB
C
120 lines
4.0 KiB
C
/* wisdom.c
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2013-2025 Warren Pratt, NR0V
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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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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The author can be reached by email at
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warren@wpratt.com
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*/
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#define _CRT_SECURE_NO_WARNINGS
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#include "comm.h"
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static char status[128];
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PORT
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char* wisdom_get_status()
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{
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return status;
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}
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PORT
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int WDSPwisdom (char* directory)
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{
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int wisdom_return = 0; // 0 from existing, 1 rebuilt
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fftw_plan tplan;
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int psize;
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#ifdef _WIN32
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FILE *stream;
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#endif
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double* fftin;
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double* fftout;
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char wisdom_file[1024];
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const int maxsize = max (MAX_WISDOM_SIZE_DISPLAY, MAX_WISDOM_SIZE_FILTER + 1);
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strcpy (wisdom_file, directory);
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strncat (wisdom_file, "wdspWisdom00", 16);
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if(!fftw_import_wisdom_from_filename(wisdom_file))
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{
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fftin = (double *) malloc0 (maxsize * sizeof (complex));
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fftout = (double *) malloc0 (maxsize * sizeof (complex));
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#ifdef _WIN32
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AllocConsole(); // create console
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freopen_s(&stream, "conout$", "w", stdout); // redirect output to console
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#endif
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fprintf(stdout, "Optimizing FFT sizes through %d\n\n", maxsize);
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fprintf(stdout, "Please do not close this window until wisdom plans are completed.\n\n");
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sprintf(status, "Optimizing FFT sizes through %d", maxsize);
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psize = 64;
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while (psize <= MAX_WISDOM_SIZE_FILTER)
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{
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fprintf(stdout, "Planning COMPLEX FORWARD FFT size %d\n", psize);
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fflush(stdout);
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sprintf(status, "Planning COMPLEX FORWARD FFT size %d\n", psize);
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tplan = fftw_plan_dft_1d(psize, (fftw_complex *)fftin, (fftw_complex *)fftout, FFTW_FORWARD, FFTW_PATIENT);
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fftw_execute (tplan);
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fftw_destroy_plan (tplan);
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fprintf(stdout, "Planning COMPLEX BACKWARD FFT size %d\n", psize);
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fflush(stdout);
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sprintf(status, "Planning COMPLEX BACKWARD FFT size %d\n", psize);
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tplan = fftw_plan_dft_1d(psize, (fftw_complex *)fftin, (fftw_complex *)fftout, FFTW_BACKWARD, FFTW_PATIENT);
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fftw_execute (tplan);
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fftw_destroy_plan (tplan);
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fprintf(stdout, "Planning COMPLEX BACKWARD FFT size %d\n", psize + 1);
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fflush(stdout);
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sprintf(status, "Planning COMPLEX BACKWARD FFT size %d\n", psize + 1);
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tplan = fftw_plan_dft_1d(psize + 1, (fftw_complex *)fftin, (fftw_complex *)fftout, FFTW_BACKWARD, FFTW_PATIENT);
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fftw_execute (tplan);
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fftw_destroy_plan (tplan);
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psize *= 2;
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}
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psize = 64;
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while (psize <= MAX_WISDOM_SIZE_DISPLAY)
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{
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if (psize > MAX_WISDOM_SIZE_FILTER)
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{
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fprintf(stdout, "Planning COMPLEX FORWARD FFT size %d\n", psize);
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fflush(stdout);
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sprintf(status, "Planning COMPLEX FORWARD FFT size %d\n", psize);
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tplan = fftw_plan_dft_1d(psize, (fftw_complex *)fftin, (fftw_complex *)fftout, FFTW_FORWARD, FFTW_PATIENT);
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fftw_execute (tplan);
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fftw_destroy_plan (tplan);
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}
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fprintf(stdout, "Planning REAL FORWARD FFT size %d\n", psize);
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fflush(stdout);
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sprintf(status, "Planning REAL FORWARD FFT size %d\n", psize);
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tplan = fftw_plan_dft_r2c_1d(psize, fftin, (fftw_complex *)fftout, FFTW_PATIENT);
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fftw_execute (tplan);
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fftw_destroy_plan (tplan);
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psize *= 2;
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}
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fprintf(stdout, "\nFFTW planning complete.\n");
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fflush(stdout);
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sprintf(status, "\nFFTW planning complete.\n");
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fftw_export_wisdom_to_filename(wisdom_file);
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_aligned_free (fftout);
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_aligned_free (fftin);
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#ifdef _WIN32
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FreeConsole(); // dismiss console
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#endif
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wisdom_return = 1;
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}
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return wisdom_return;
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}
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