Mercurial > hg > audiostuff
diff spandsp-0.0.6pre17/tests/complex_tests.c @ 4:26cd8f1ef0b1
import spandsp-0.0.6pre17
author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
---|---|
date | Fri, 25 Jun 2010 15:50:58 +0200 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/spandsp-0.0.6pre17/tests/complex_tests.c Fri Jun 25 15:50:58 2010 +0200 @@ -0,0 +1,81 @@ +/* + * SpanDSP - a series of DSP components for telephony + * + * complex.c + * + * Written by Steve Underwood <steveu@coppice.org> + * + * Copyright (C) 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_tests.c,v 1.2 2009/01/28 03:41:27 steveu Exp $ + */ + +/*! \page complex_tests_page Complex arithmetic tests +\section complex_tests_page_sec_1 What does it do? + +\section complex_tests_page_sec_2 How is it used? +*/ + +#if defined(HAVE_CONFIG_H) +#include "config.h" +#endif + +#include <stdlib.h> +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#if defined(HAVE_TGMATH_H) +#include <tgmath.h> +#endif +#if defined(HAVE_MATH_H) +#include <math.h> +#endif +#include "floating_fudge.h" +#include <assert.h> + +#include "spandsp.h" + +int main(int argc, char *argv[]) +{ + complexf_t fa; + complexf_t fb; + complexf_t fz; + complexi16_t i16a; + complexi16_t i16b; + complexi16_t i16z; +#if 0 + complexi32_t i32a; + complexi32_t i32b; + complexi32_t i32z; +#endif + + fa = complex_setf(0.5f, 0.25f); + fb = complex_setf(0.25f, 0.5f); + fz = complex_mulf(&fa, &fb); + printf("(%f, %f) * (%f, %f) => (%f, %f)\n", fa.re, fa.im, fb.re, fb.im, fz.re, fz.im); + + i16a = complex_seti16(16383, 8191); + i16b = complex_seti16(8191, 16383); + i16z = complex_mul_q1_15(&i16a, &i16b); + printf("(%f, %f) * (%f, %f) => (%f, %f)\n", i16a.re/32768.0, i16a.im/32768.0, i16b.re/32768.0, i16b.im/32768.0, i16z.re/32768.0, i16z.im/32768.0); + + printf("Tests passed.\n"); + return 0; +} +/*- End of function --------------------------------------------------------*/ +/*- End of file ------------------------------------------------------------*/