150 lines
4.0 KiB
C
150 lines
4.0 KiB
C
/*
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* SpanDSP - a series of DSP components for telephony
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*
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* complex_vector_float_tests.c
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*
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* Written by Steve Underwood <steveu@coppice.org>
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*
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* Copyright (C) 2006,2008 Steve Underwood
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*
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* All rights reserved.
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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 version 2, as
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* published by the Free Software Foundation.
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id: complex_vector_float_tests.c,v 1.2 2008/10/09 13:25:19 steveu Exp $
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*/
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#if defined(HAVE_CONFIG_H)
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <string.h>
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#include <audiofile.h>
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#include "spandsp.h"
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static void cvec_mulf_dumb(complexf_t z[], const complexf_t x[], const complexf_t y[], int n)
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{
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int i;
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for (i = 0; i < n; i++)
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{
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z[i].re = x[i].re*y[i].re - x[i].im*y[i].im;
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z[i].im = x[i].re*y[i].im + x[i].im*y[i].re;
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}
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}
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/*- End of function --------------------------------------------------------*/
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static int test_cvec_mulf(void)
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{
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int i;
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complexf_t x[100];
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complexf_t y[100];
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complexf_t za[100];
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complexf_t zb[100];
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complexf_t ratio;
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for (i = 0; i < 99; i++)
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{
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x[i].re = rand();
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x[i].im = rand();
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y[i].re = rand();
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y[i].im = rand();
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}
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cvec_mulf(za, x, y, 99);
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cvec_mulf_dumb(zb, x, y, 99);
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for (i = 0; i < 99; i++)
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printf("(%f,%f) (%f,%f) (%f,%f)\n", za[i].re, za[i].im, x[i].re, x[i].im, y[i].re, y[i].im);
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for (i = 0; i < 99; i++)
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{
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ratio.re = za[i].re/zb[i].re;
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ratio.im = za[i].im/zb[i].im;
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if ((ratio.re < 0.9999 || ratio.re > 1.0001)
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||
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(ratio.im < 0.9999 || ratio.im > 1.0001))
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{
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printf("cvec_mulf() - (%f,%f) (%f,%f)\n", za[i].re, za[i].im, zb[i].re, zb[i].im);
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printf("Tests failed\n");
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exit(2);
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}
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}
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return 0;
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}
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/*- End of function --------------------------------------------------------*/
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static complexf_t cvec_dot_prodf_dumb(const complexf_t x[], const complexf_t y[], int n)
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{
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int i;
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complexf_t z;
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complexf_t z1;
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z = complex_setf(0.0f, 0.0f);
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for (i = 0; i < n; i++)
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{
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z1 = complex_mulf(&x[i], &y[i]);
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z = complex_addf(&z, &z1);
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}
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return z;
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}
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/*- End of function --------------------------------------------------------*/
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static int test_cvec_dot_prodf(void)
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{
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int i;
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complexf_t x[100];
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complexf_t y[100];
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complexf_t zsa;
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complexf_t zsb;
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complexf_t ratio;
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for (i = 0; i < 99; i++)
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{
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x[i].re = rand();
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x[i].im = rand();
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y[i].re = rand();
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y[i].im = rand();
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}
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for (i = 1; i < 99; i++)
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{
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zsa = cvec_dot_prodf(x, y, i);
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zsb = cvec_dot_prodf_dumb(x, y, i);
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ratio.re = zsa.re/zsb.re;
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ratio.im = zsa.im/zsb.im;
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if ((ratio.re < 0.9999 || ratio.re > 1.0001)
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||
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(ratio.im < 0.9999 || ratio.im > 1.0001))
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{
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printf("cvec_dot_prodf() - (%f,%f) (%f,%f)\n", zsa.re, zsa.im, zsb.re, zsb.im);
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printf("Tests failed\n");
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exit(2);
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}
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}
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return 0;
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}
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/*- End of function --------------------------------------------------------*/
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int main(int argc, char *argv[])
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{
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test_cvec_mulf();
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test_cvec_dot_prodf();
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printf("Tests passed.\n");
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return 0;
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}
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/*- End of function --------------------------------------------------------*/
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/*- End of file ------------------------------------------------------------*/
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