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5
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1 /*
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2 * SpanDSP - a series of DSP components for telephony
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3 *
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4 * vector_int_tests.c
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5 *
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6 * Written by Steve Underwood <steveu@coppice.org>
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7 *
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8 * Copyright (C) 2006 Steve Underwood
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9 *
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10 * All rights reserved.
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11 *
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12 * This program is free software; you can redistribute it and/or modify
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13 * it under the terms of the GNU General Public License version 2, as
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14 * published by the Free Software Foundation.
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15 *
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16 * This program is distributed in the hope that it will be useful,
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 * GNU General Public License for more details.
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20 *
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21 * You should have received a copy of the GNU General Public License
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22 * along with this program; if not, write to the Free Software
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23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 *
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25 * $Id: vector_int_tests.c,v 1.3 2006/11/19 14:07:28 steveu Exp $
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26 */
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27
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28 #ifdef HAVE_CONFIG_H
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29 #include "config.h"
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30 #endif
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31
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32 #include <inttypes.h>
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33 #include <stdlib.h>
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34 #include <stdio.h>
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35 #include <fcntl.h>
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36 #include <string.h>
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37 #if defined(HAVE_TGMATH_H)
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38 #include <tgmath.h>
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39 #endif
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40 #if defined(HAVE_MATH_H)
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41 #include <math.h>
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42 #endif
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43 #include <assert.h>
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44 #include <audiofile.h>
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45 #include <tiffio.h>
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46
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47 #include "spandsp.h"
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48
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49 static int32_t vec_dot_prodi16_dumb(const int16_t x[], const int16_t y[], int n)
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50 {
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51 int32_t z;
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52 int i;
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53
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54 z = 0;
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55 for (i = 0; i < n; i++)
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56 z += x[i]*y[i];
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57 return z;
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58 }
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59 /*- End of function --------------------------------------------------------*/
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60
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61 static int32_t vec_min_maxi16_dumb(const int16_t x[], int n, int16_t out[])
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62 {
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63 int i;
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64 int16_t min;
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65 int16_t max;
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66 int16_t temp;
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67 int32_t z;
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68
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69 max = INT16_MIN;
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70 min = INT16_MAX;
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71 for (i = 0; i < n; i++)
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72 {
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73 temp = x[i];
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74 if (temp > max)
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75 max = temp;
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76 /*endif*/
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77 if (temp < min)
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78 min = temp;
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79 /*endif*/
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80 }
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81 /*endfor*/
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82 out[0] = max;
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83 out[1] = min;
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84 z = abs(min);
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85 if (z > max)
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86 return z;
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87 return max;
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88 }
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89 /*- End of function --------------------------------------------------------*/
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90
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91 int main(int argc, char *argv[])
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92 {
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93 int i;
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94 int32_t za;
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95 int32_t zb;
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96 int16_t x[99];
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97 int16_t y[99];
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98 int16_t outa[2];
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99 int16_t outb[2];
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100
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101 for (i = 0; i < 99; i++)
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102 {
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103 x[i] = rand();
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104 y[i] = rand();
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105 }
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106
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107 za = vec_dot_prodi16(x, y, 99);
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108 zb = vec_dot_prodi16_dumb(x, y, 99);
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109 if (za != zb)
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110 {
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111 printf("Tests failed\n");
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112 exit(2);
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113 }
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114
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115 x[42] = -32768;
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116 za = vec_min_maxi16_dumb(x, 99, outa);
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117 zb = vec_min_maxi16(x, 99, outb);
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118 if (za != zb
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119 ||
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120 outa[0] != outb[0]
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121 ||
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122 outa[1] != outb[1])
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123 {
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124 printf("Tests failed\n");
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125 exit(2);
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126 }
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127 printf("Tests passed.\n");
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128 return 0;
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129 }
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130 /*- End of function --------------------------------------------------------*/
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131 /*- End of file ------------------------------------------------------------*/
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