Mercurial > hg > audiostuff
comparison spandsp-0.0.6pre17/tests/complex_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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| 3:c6c5a16ce2f2 | 4:26cd8f1ef0b1 |
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| 1 /* | |
| 2 * SpanDSP - a series of DSP components for telephony | |
| 3 * | |
| 4 * complex.c | |
| 5 * | |
| 6 * Written by Steve Underwood <steveu@coppice.org> | |
| 7 * | |
| 8 * Copyright (C) 2008 Steve Underwood | |
| 9 * | |
| 10 * All rights reserved. | |
| 11 * | |
| 12 * This program is free software; you can redistribute it and/or modify | |
| 13 * it under the terms of the GNU General Public License version 2, as | |
| 14 * published by the Free Software Foundation. | |
| 15 * | |
| 16 * This program is distributed in the hope that it will be useful, | |
| 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 * GNU General Public License for more details. | |
| 20 * | |
| 21 * You should have received a copy of the GNU General Public License | |
| 22 * along with this program; if not, write to the Free Software | |
| 23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 24 * | |
| 25 * $Id: complex_tests.c,v 1.2 2009/01/28 03:41:27 steveu Exp $ | |
| 26 */ | |
| 27 | |
| 28 /*! \page complex_tests_page Complex arithmetic tests | |
| 29 \section complex_tests_page_sec_1 What does it do? | |
| 30 | |
| 31 \section complex_tests_page_sec_2 How is it used? | |
| 32 */ | |
| 33 | |
| 34 #if defined(HAVE_CONFIG_H) | |
| 35 #include "config.h" | |
| 36 #endif | |
| 37 | |
| 38 #include <stdlib.h> | |
| 39 #include <stdio.h> | |
| 40 #include <fcntl.h> | |
| 41 #include <string.h> | |
| 42 #if defined(HAVE_TGMATH_H) | |
| 43 #include <tgmath.h> | |
| 44 #endif | |
| 45 #if defined(HAVE_MATH_H) | |
| 46 #include <math.h> | |
| 47 #endif | |
| 48 #include "floating_fudge.h" | |
| 49 #include <assert.h> | |
| 50 | |
| 51 #include "spandsp.h" | |
| 52 | |
| 53 int main(int argc, char *argv[]) | |
| 54 { | |
| 55 complexf_t fa; | |
| 56 complexf_t fb; | |
| 57 complexf_t fz; | |
| 58 complexi16_t i16a; | |
| 59 complexi16_t i16b; | |
| 60 complexi16_t i16z; | |
| 61 #if 0 | |
| 62 complexi32_t i32a; | |
| 63 complexi32_t i32b; | |
| 64 complexi32_t i32z; | |
| 65 #endif | |
| 66 | |
| 67 fa = complex_setf(0.5f, 0.25f); | |
| 68 fb = complex_setf(0.25f, 0.5f); | |
| 69 fz = complex_mulf(&fa, &fb); | |
| 70 printf("(%f, %f) * (%f, %f) => (%f, %f)\n", fa.re, fa.im, fb.re, fb.im, fz.re, fz.im); | |
| 71 | |
| 72 i16a = complex_seti16(16383, 8191); | |
| 73 i16b = complex_seti16(8191, 16383); | |
| 74 i16z = complex_mul_q1_15(&i16a, &i16b); | |
| 75 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); | |
| 76 | |
| 77 printf("Tests passed.\n"); | |
| 78 return 0; | |
| 79 } | |
| 80 /*- End of function --------------------------------------------------------*/ | |
| 81 /*- End of file ------------------------------------------------------------*/ |