Mercurial > hg > audiostuff
comparison 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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3:c6c5a16ce2f2 | 4:26cd8f1ef0b1 |
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1 /* | |
2 * SpanDSP - a series of DSP components for telephony | |
3 * | |
4 * complex_vector_float_tests.c | |
5 * | |
6 * Written by Steve Underwood <steveu@coppice.org> | |
7 * | |
8 * Copyright (C) 2006,2008 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_vector_float_tests.c,v 1.3 2009/04/26 07:00:39 steveu Exp $ | |
26 */ | |
27 | |
28 #if defined(HAVE_CONFIG_H) | |
29 #include "config.h" | |
30 #endif | |
31 | |
32 #include <stdlib.h> | |
33 #include <stdio.h> | |
34 #include <fcntl.h> | |
35 #include <string.h> | |
36 | |
37 #include "spandsp.h" | |
38 | |
39 static void cvec_mulf_dumb(complexf_t z[], const complexf_t x[], const complexf_t y[], int n) | |
40 { | |
41 int i; | |
42 | |
43 for (i = 0; i < n; i++) | |
44 { | |
45 z[i].re = x[i].re*y[i].re - x[i].im*y[i].im; | |
46 z[i].im = x[i].re*y[i].im + x[i].im*y[i].re; | |
47 } | |
48 } | |
49 /*- End of function --------------------------------------------------------*/ | |
50 | |
51 static int test_cvec_mulf(void) | |
52 { | |
53 int i; | |
54 complexf_t x[100]; | |
55 complexf_t y[100]; | |
56 complexf_t za[100]; | |
57 complexf_t zb[100]; | |
58 complexf_t ratio; | |
59 | |
60 for (i = 0; i < 99; i++) | |
61 { | |
62 x[i].re = rand(); | |
63 x[i].im = rand(); | |
64 y[i].re = rand(); | |
65 y[i].im = rand(); | |
66 } | |
67 cvec_mulf(za, x, y, 99); | |
68 cvec_mulf_dumb(zb, x, y, 99); | |
69 for (i = 0; i < 99; i++) | |
70 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); | |
71 for (i = 0; i < 99; i++) | |
72 { | |
73 ratio.re = za[i].re/zb[i].re; | |
74 ratio.im = za[i].im/zb[i].im; | |
75 if ((ratio.re < 0.9999 || ratio.re > 1.0001) | |
76 || | |
77 (ratio.im < 0.9999 || ratio.im > 1.0001)) | |
78 { | |
79 printf("cvec_mulf() - (%f,%f) (%f,%f)\n", za[i].re, za[i].im, zb[i].re, zb[i].im); | |
80 printf("Tests failed\n"); | |
81 exit(2); | |
82 } | |
83 } | |
84 return 0; | |
85 } | |
86 /*- End of function --------------------------------------------------------*/ | |
87 | |
88 static complexf_t cvec_dot_prodf_dumb(const complexf_t x[], const complexf_t y[], int n) | |
89 { | |
90 int i; | |
91 complexf_t z; | |
92 complexf_t z1; | |
93 | |
94 z = complex_setf(0.0f, 0.0f); | |
95 for (i = 0; i < n; i++) | |
96 { | |
97 z1 = complex_mulf(&x[i], &y[i]); | |
98 z = complex_addf(&z, &z1); | |
99 } | |
100 return z; | |
101 } | |
102 /*- End of function --------------------------------------------------------*/ | |
103 | |
104 static int test_cvec_dot_prodf(void) | |
105 { | |
106 int i; | |
107 complexf_t x[100]; | |
108 complexf_t y[100]; | |
109 complexf_t zsa; | |
110 complexf_t zsb; | |
111 complexf_t ratio; | |
112 | |
113 for (i = 0; i < 99; i++) | |
114 { | |
115 x[i].re = rand(); | |
116 x[i].im = rand(); | |
117 y[i].re = rand(); | |
118 y[i].im = rand(); | |
119 } | |
120 for (i = 1; i < 99; i++) | |
121 { | |
122 zsa = cvec_dot_prodf(x, y, i); | |
123 zsb = cvec_dot_prodf_dumb(x, y, i); | |
124 ratio.re = zsa.re/zsb.re; | |
125 ratio.im = zsa.im/zsb.im; | |
126 if ((ratio.re < 0.9999 || ratio.re > 1.0001) | |
127 || | |
128 (ratio.im < 0.9999 || ratio.im > 1.0001)) | |
129 { | |
130 printf("cvec_dot_prodf() - (%f,%f) (%f,%f)\n", zsa.re, zsa.im, zsb.re, zsb.im); | |
131 printf("Tests failed\n"); | |
132 exit(2); | |
133 } | |
134 } | |
135 return 0; | |
136 } | |
137 /*- End of function --------------------------------------------------------*/ | |
138 | |
139 int main(int argc, char *argv[]) | |
140 { | |
141 test_cvec_mulf(); | |
142 test_cvec_dot_prodf(); | |
143 | |
144 printf("Tests passed.\n"); | |
145 return 0; | |
146 } | |
147 /*- End of function --------------------------------------------------------*/ | |
148 /*- End of file ------------------------------------------------------------*/ |