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annotate test/testmultiaudio.c @ 3099:82e60908fab1

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Date: Mon, 23 Mar 2009 09:17:24 +0200 From: "Mike Gorchak" Subject: New QNX patches Please apply patch qnx4.diff, which is attached. What has been done: 1)Added back OpenGL ES renderer for QNX target. Added few corrections to OpenGL ES renderer to let it work under QNX. OpenGL ES renderer do not support textures under QNX, so I think some additional work must be done. 2) Added GL_OES_query_matrix extension to SDL_opengles.h header file, which required by OpenGL ES 1.1 specification. 3) Added attribute clearing at the entrance of function SDL_GL_GetAttribure(). Added error checking into the function SDL_GL_GetAttribure(), because some attributes can't be obtained in OpenGL ES 1.0. 4) Porting testdyngles to OpenGL ES 1.0 (1.1 has glColor4ub() and glColor4f() functions, but 1.0 has glColor4f() only). 5) Added error checking after obtaining attributes using SDL_GL_GetAttribute() function to the testgl2 and testgles. 6) Small correction to testmultiaudio with printing errors. 7) Added software and accelerated OpenGL ES 1.0 support into the QNX GF driver. Please remove ./src/audio/nto directory - it will not be used anymore. Please create ./src/audio/qsa directory and add content of the archive qsa.tar.gz into this directory. I rewrote some sound code, added support for multiple audio cards, enumeration, etc. Added initial support for capture. As far as I can understand SDL 1.3 is not supporting audio capture right now ? Sam, Am I right ? Or audio capture must be supported through the PlayDevice routine ? And last, please put file SDL_gf_opengles.c to the ./src/video/qnxgf directory. It is OpenGL ES 1.1 emulation layer for some functions, which are not supported by OpenGL ES 1.0.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 24 Mar 2009 10:33:12 +0000
parents eec7adc3d1c5
children
rev   line source
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1 #include "SDL.h"
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2
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3 static SDL_AudioSpec spec;
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4 static Uint8 *sound = NULL; /* Pointer to wave data */
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5 static Uint32 soundlen = 0; /* Length of wave data */
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6
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7 typedef struct
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8 {
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9 SDL_AudioDeviceID dev;
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10 int soundpos;
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11 volatile int done;
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12 } callback_data;
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13
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14 void SDLCALL
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15 play_through_once(void *arg, Uint8 * stream, int len)
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16 {
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17 callback_data *cbd = (callback_data *) arg;
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18 Uint8 *waveptr = sound + cbd->soundpos;
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19 int waveleft = soundlen - cbd->soundpos;
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20 int cpy = len;
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21 if (cpy > waveleft)
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22 cpy = waveleft;
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23
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24 SDL_memcpy(stream, waveptr, cpy);
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25 len -= cpy;
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26 cbd->soundpos += cpy;
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27 if (len > 0) {
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28 stream += cpy;
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29 SDL_memset(stream, spec.silence, len);
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30 cbd->done++;
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31 }
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32 }
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33
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34 static void
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35 test_multi_audio(int devcount)
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36 {
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37 callback_data cbd[64];
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38 int keep_going = 1;
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39 int i;
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40
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41 if (devcount > 64) {
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42 fprintf(stderr, "Too many devices (%d), clamping to 64...\n",
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43 devcount);
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44 devcount = 64;
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45 }
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46
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47 spec.callback = play_through_once;
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48
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49 for (i = 0; i < devcount; i++) {
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50 const char *devname = SDL_GetAudioDeviceName(i, 0);
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51 printf("playing on device #%d: ('%s')...", i, devname);
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52 fflush(stdout);
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53
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54 SDL_memset(&cbd[0], '\0', sizeof(callback_data));
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55 spec.userdata = &cbd[0];
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56 cbd[0].dev = SDL_OpenAudioDevice(devname, 0, &spec, NULL, 0);
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57 if (cbd[0].dev == 0) {
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58 printf("\nOpen device failed: %s\n", SDL_GetError());
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59 } else {
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60 SDL_PauseAudioDevice(cbd[0].dev, 0);
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61 while (!cbd[0].done)
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62 SDL_Delay(100);
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63 SDL_PauseAudioDevice(cbd[0].dev, 1);
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64 printf("done.\n");
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65 SDL_CloseAudioDevice(cbd[0].dev);
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66 }
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67 }
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68
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69 SDL_memset(cbd, '\0', sizeof(cbd));
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70
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71 printf("playing on all devices...\n");
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72 for (i = 0; i < devcount; i++) {
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73 const char *devname = SDL_GetAudioDeviceName(i, 0);
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74 spec.userdata = &cbd[i];
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75 cbd[i].dev = SDL_OpenAudioDevice(devname, 0, &spec, NULL, 0);
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76 if (cbd[i].dev == 0) {
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77 printf("Open device %d failed: %s\n", i, SDL_GetError());
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78 }
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79 }
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80
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81 for (i = 0; i < devcount; i++) {
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82 if (cbd[i].dev) {
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83 SDL_PauseAudioDevice(cbd[i].dev, 0);
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84 }
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85 }
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86
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87 while (keep_going) {
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88 keep_going = 0;
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89 for (i = 0; i < devcount; i++) {
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90 if ((cbd[i].dev) && (!cbd[i].done)) {
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91 keep_going = 1;
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92 }
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93 }
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94 SDL_Delay(100);
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95 }
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96
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97 for (i = 0; i < devcount; i++) {
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98 if (cbd[i].dev) {
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99 SDL_PauseAudioDevice(cbd[i].dev, 1);
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100 SDL_CloseAudioDevice(cbd[i].dev);
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101 }
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102 }
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103
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104 printf("All done!\n");
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105 }
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106
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107
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108 int
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109 main(int argc, char **argv)
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110 {
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111 int devcount = 0;
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112
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113 /* Load the SDL library */
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114 if (SDL_Init(SDL_INIT_AUDIO) < 0) {
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115 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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116 return (1);
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117 }
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118
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119 printf("Using audio driver: %s\n", SDL_GetCurrentAudioDriver());
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120
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121 devcount = SDL_GetNumAudioDevices(0);
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122 if (devcount < 1) {
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123 fprintf(stderr, "Don't see any specific audio devices!\n");
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124 } else {
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125 if (argv[1] == NULL) {
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126 argv[1] = "sample.wav";
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127 }
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128
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129 /* Load the wave file into memory */
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130 if (SDL_LoadWAV(argv[1], &spec, &sound, &soundlen) == NULL) {
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131 fprintf(stderr, "Couldn't load %s: %s\n", argv[1],
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132 SDL_GetError());
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133 } else {
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134 test_multi_audio(devcount);
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135 SDL_FreeWAV(sound);
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136 }
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137 }
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138
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139 SDL_Quit();
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140 return 0;
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141 }