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 ------------------------------------------------------------*/ |