Mercurial > hg > audiostuff
diff spandsp-0.0.6pre17/tests/complex_vector_float_tests.c @ 4:26cd8f1ef0b1
import spandsp-0.0.6pre17
author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
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date | Fri, 25 Jun 2010 15:50:58 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/spandsp-0.0.6pre17/tests/complex_vector_float_tests.c Fri Jun 25 15:50:58 2010 +0200 @@ -0,0 +1,148 @@ +/* + * SpanDSP - a series of DSP components for telephony + * + * complex_vector_float_tests.c + * + * Written by Steve Underwood <steveu@coppice.org> + * + * Copyright (C) 2006,2008 Steve Underwood + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2, as + * published by the Free Software Foundation. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * $Id: complex_vector_float_tests.c,v 1.3 2009/04/26 07:00:39 steveu Exp $ + */ + +#if defined(HAVE_CONFIG_H) +#include "config.h" +#endif + +#include <stdlib.h> +#include <stdio.h> +#include <fcntl.h> +#include <string.h> + +#include "spandsp.h" + +static void cvec_mulf_dumb(complexf_t z[], const complexf_t x[], const complexf_t y[], int n) +{ + int i; + + for (i = 0; i < n; i++) + { + z[i].re = x[i].re*y[i].re - x[i].im*y[i].im; + z[i].im = x[i].re*y[i].im + x[i].im*y[i].re; + } +} +/*- End of function --------------------------------------------------------*/ + +static int test_cvec_mulf(void) +{ + int i; + complexf_t x[100]; + complexf_t y[100]; + complexf_t za[100]; + complexf_t zb[100]; + complexf_t ratio; + + for (i = 0; i < 99; i++) + { + x[i].re = rand(); + x[i].im = rand(); + y[i].re = rand(); + y[i].im = rand(); + } + cvec_mulf(za, x, y, 99); + cvec_mulf_dumb(zb, x, y, 99); + for (i = 0; i < 99; i++) + 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); + for (i = 0; i < 99; i++) + { + ratio.re = za[i].re/zb[i].re; + ratio.im = za[i].im/zb[i].im; + if ((ratio.re < 0.9999 || ratio.re > 1.0001) + || + (ratio.im < 0.9999 || ratio.im > 1.0001)) + { + printf("cvec_mulf() - (%f,%f) (%f,%f)\n", za[i].re, za[i].im, zb[i].re, zb[i].im); + printf("Tests failed\n"); + exit(2); + } + } + return 0; +} +/*- End of function --------------------------------------------------------*/ + +static complexf_t cvec_dot_prodf_dumb(const complexf_t x[], const complexf_t y[], int n) +{ + int i; + complexf_t z; + complexf_t z1; + + z = complex_setf(0.0f, 0.0f); + for (i = 0; i < n; i++) + { + z1 = complex_mulf(&x[i], &y[i]); + z = complex_addf(&z, &z1); + } + return z; +} +/*- End of function --------------------------------------------------------*/ + +static int test_cvec_dot_prodf(void) +{ + int i; + complexf_t x[100]; + complexf_t y[100]; + complexf_t zsa; + complexf_t zsb; + complexf_t ratio; + + for (i = 0; i < 99; i++) + { + x[i].re = rand(); + x[i].im = rand(); + y[i].re = rand(); + y[i].im = rand(); + } + for (i = 1; i < 99; i++) + { + zsa = cvec_dot_prodf(x, y, i); + zsb = cvec_dot_prodf_dumb(x, y, i); + ratio.re = zsa.re/zsb.re; + ratio.im = zsa.im/zsb.im; + if ((ratio.re < 0.9999 || ratio.re > 1.0001) + || + (ratio.im < 0.9999 || ratio.im > 1.0001)) + { + printf("cvec_dot_prodf() - (%f,%f) (%f,%f)\n", zsa.re, zsa.im, zsb.re, zsb.im); + printf("Tests failed\n"); + exit(2); + } + } + return 0; +} +/*- End of function --------------------------------------------------------*/ + +int main(int argc, char *argv[]) +{ + test_cvec_mulf(); + test_cvec_dot_prodf(); + + printf("Tests passed.\n"); + return 0; +} +/*- End of function --------------------------------------------------------*/ +/*- End of file ------------------------------------------------------------*/