annotate src/audio/SDL_audio.c @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device

Audio bootstraps can now specify that a driver is only to be used if explicitly requested (for things like the "disk" driver that is always available but you would never want to default to using). Trimmed out code that can be handled by stubs in the core. The "dummy" driver is pretty damned small now. :)
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 04 Oct 2006 21:27:53 +0000
parents b19680c84cdf
children e17a59e6aff6
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* Allow access to a raw mixing buffer */
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25
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26 #include "SDL.h"
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27 #include "SDL_audio_c.h"
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28 #include "SDL_audiomem.h"
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29 #include "SDL_sysaudio.h"
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30
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31 #ifdef __OS2__
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32 /* We'll need the DosSetPriority() API! */
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33 #define INCL_DOSPROCESS
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34 #include <os2.h>
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35 #endif
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36
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37 #define _THIS SDL_AudioDevice *this
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38
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39 static SDL_AudioDriver current_audio;
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40
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41 /* !!! FIXME: don't use a static array, but it's Good Enough For Now... */
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42 static SDL_AudioDevice *open_devices[16];
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43
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44 /* !!! FIXME: These are wordy and unlocalized... */
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45 #define DEFAULT_OUTPUT_DEVNAME "System audio output device"
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46 #define DEFAULT_INPUT_DEVNAME "System audio capture device"
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47
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48
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49 /*
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50 * Not all of these will be compiled and linked in, but it's convenient
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51 * to have a complete list here and saves yet-another block of #ifdefs...
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52 * Please see bootstrap[], below, for the actual #ifdef mess.
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53 */
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54 extern AudioBootStrap BSD_AUDIO_bootstrap;
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55 extern AudioBootStrap DSP_bootstrap;
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56 extern AudioBootStrap DMA_bootstrap;
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57 extern AudioBootStrap ALSA_bootstrap;
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58 extern AudioBootStrap QNXNTOAUDIO_bootstrap;
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59 extern AudioBootStrap SUNAUDIO_bootstrap;
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60 extern AudioBootStrap DMEDIA_bootstrap;
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61 extern AudioBootStrap ARTS_bootstrap;
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62 extern AudioBootStrap ESD_bootstrap;
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63 extern AudioBootStrap NAS_bootstrap;
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64 extern AudioBootStrap DSOUND_bootstrap;
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65 extern AudioBootStrap WAVEOUT_bootstrap;
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66 extern AudioBootStrap Paud_bootstrap;
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67 extern AudioBootStrap BAUDIO_bootstrap;
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68 extern AudioBootStrap COREAUDIO_bootstrap;
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69 extern AudioBootStrap SNDMGR_bootstrap;
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70 extern AudioBootStrap AHI_bootstrap;
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71 extern AudioBootStrap MINTAUDIO_GSXB_bootstrap;
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72 extern AudioBootStrap MINTAUDIO_MCSN_bootstrap;
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73 extern AudioBootStrap MINTAUDIO_STFA_bootstrap;
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74 extern AudioBootStrap MINTAUDIO_XBIOS_bootstrap;
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75 extern AudioBootStrap MINTAUDIO_DMA8_bootstrap;
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76 extern AudioBootStrap DISKAUD_bootstrap;
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77 extern AudioBootStrap DUMMYAUD_bootstrap;
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78 extern AudioBootStrap DCAUD_bootstrap;
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79 extern AudioBootStrap MMEAUDIO_bootstrap;
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80 extern AudioBootStrap DART_bootstrap;
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81
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82
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83 /* Available audio drivers */
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84 static AudioBootStrap *bootstrap[] = {
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85 #if SDL_AUDIO_DRIVER_BSD
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86 &BSD_AUDIO_bootstrap,
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87 #endif
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88 #if SDL_AUDIO_DRIVER_OSS
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89 &DSP_bootstrap,
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90 &DMA_bootstrap,
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91 #endif
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92 #if SDL_AUDIO_DRIVER_ALSA
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93 &ALSA_bootstrap,
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94 #endif
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95 #if SDL_AUDIO_DRIVER_QNXNTO
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96 &QNXNTOAUDIO_bootstrap,
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97 #endif
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98 #if SDL_AUDIO_DRIVER_SUNAUDIO
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99 &SUNAUDIO_bootstrap,
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100 #endif
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101 #if SDL_AUDIO_DRIVER_DMEDIA
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102 &DMEDIA_bootstrap,
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103 #endif
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104 #if SDL_AUDIO_DRIVER_ARTS
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105 &ARTS_bootstrap,
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106 #endif
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107 #if SDL_AUDIO_DRIVER_ESD
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108 &ESD_bootstrap,
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109 #endif
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110 #if SDL_AUDIO_DRIVER_NAS
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111 &NAS_bootstrap,
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112 #endif
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113 #if SDL_AUDIO_DRIVER_DSOUND
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114 &DSOUND_bootstrap,
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115 #endif
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116 #if SDL_AUDIO_DRIVER_WAVEOUT
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117 &WAVEOUT_bootstrap,
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118 #endif
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119 #if SDL_AUDIO_DRIVER_PAUD
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120 &Paud_bootstrap,
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121 #endif
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122 #if SDL_AUDIO_DRIVER_BAUDIO
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123 &BAUDIO_bootstrap,
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124 #endif
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125 #if SDL_AUDIO_DRIVER_COREAUDIO
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126 &COREAUDIO_bootstrap,
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127 #endif
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128 #if SDL_AUDIO_DRIVER_SNDMGR
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129 &SNDMGR_bootstrap,
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130 #endif
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131 #if SDL_AUDIO_DRIVER_AHI
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132 &AHI_bootstrap,
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133 #endif
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134 #if SDL_AUDIO_DRIVER_MINT
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135 &MINTAUDIO_GSXB_bootstrap,
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136 &MINTAUDIO_MCSN_bootstrap,
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137 &MINTAUDIO_STFA_bootstrap,
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138 &MINTAUDIO_XBIOS_bootstrap,
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139 &MINTAUDIO_DMA8_bootstrap,
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140 #endif
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141 #if SDL_AUDIO_DRIVER_DISK
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142 &DISKAUD_bootstrap,
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143 #endif
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144 #if SDL_AUDIO_DRIVER_DUMMY
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145 &DUMMYAUD_bootstrap,
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146 #endif
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147 #if SDL_AUDIO_DRIVER_DC
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148 &DCAUD_bootstrap,
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149 #endif
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150 #if SDL_AUDIO_DRIVER_MMEAUDIO
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151 &MMEAUDIO_bootstrap,
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152 #endif
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153 #if SDL_AUDIO_DRIVER_DART
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154 &DART_bootstrap,
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155 #endif
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156 NULL
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157 };
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158
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159 #if SDL_AUDIO_DRIVER_AHI
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160 static int audio_configured = 0;
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161 #endif
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162
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163 static SDL_AudioDevice *get_audio_device(SDL_AudioDeviceID id)
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164 {
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165 id--;
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166 if ( (id >= SDL_arraysize(open_devices)) || (open_devices[id] == NULL) ) {
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167 SDL_SetError("Invalid audio device ID");
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168 return NULL;
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169 }
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170
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171 return open_devices[id];
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172 }
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173
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174
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175 /* stubs for audio drivers that don't need a specific entry point... */
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176 static int SDL_AudioDetectDevices_Default(int iscapture) { return -1; }
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177 static void SDL_AudioThreadInit_Default(_THIS) { /* no-op. */ }
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178 static void SDL_AudioWaitDevice_Default(_THIS) { /* no-op. */ }
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179 static void SDL_AudioPlayDevice_Default(_THIS) { /* no-op. */ }
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180 static Uint8 *SDL_AudioGetDeviceBuf_Default(_THIS) { return NULL; }
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181 static void SDL_AudioWaitDone_Default(_THIS) { /* no-op. */ }
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182 static void SDL_AudioCloseDevice_Default(_THIS) { /* no-op. */ }
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183 static void SDL_AudioDeinitialize_Default(void) { /* no-op. */ }
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184
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185 static int
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186 SDL_AudioOpenDevice_Default(_THIS, const char *devname, int iscapture)
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187 {
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188 return 0;
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189 }
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190
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191 static const char *SDL_AudioGetDeviceName_Default(int index, int iscapture)
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192 {
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193 SDL_SetError("No such device");
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194 return NULL;
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195 }
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196
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197 static void
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198 SDL_AudioLockDevice_Default(SDL_AudioDevice * device)
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199 {
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200 if (device->thread && (SDL_ThreadID() == device->threadid)) {
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201 return;
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202 }
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203 SDL_mutexP(device->mixer_lock);
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204 }
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205
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206 static void
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207 SDL_AudioUnlockDevice_Default(SDL_AudioDevice * device)
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208 {
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209 if (device->thread && (SDL_ThreadID() == device->threadid)) {
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210 return;
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211 }
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212 SDL_mutexV(device->mixer_lock);
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213 }
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214
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215
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216 static void finalize_audio_entry_points(void)
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217 {
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218 /*
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219 * Fill in stub functions for unused driver entry points. This lets us
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220 * blindly call them without having to check for validity first.
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221 */
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222
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223 #define FILL_STUB(x) \
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224 if (current_audio.impl.x == NULL) { \
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225 current_audio.impl.x = SDL_Audio##x##_Default; \
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226 }
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227 FILL_STUB(DetectDevices);
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228 FILL_STUB(GetDeviceName);
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229 FILL_STUB(OpenDevice);
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230 FILL_STUB(ThreadInit);
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231 FILL_STUB(WaitDevice);
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232 FILL_STUB(PlayDevice);
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233 FILL_STUB(GetDeviceBuf);
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234 FILL_STUB(WaitDone);
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235 FILL_STUB(CloseDevice);
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236 FILL_STUB(LockDevice);
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237 FILL_STUB(UnlockDevice);
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238 FILL_STUB(Deinitialize);
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239 #undef FILL_STUB
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240 }
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241
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242
0
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243 /* The general mixing thread function */
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244 int SDLCALL
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245 SDL_RunAudio(void *devicep)
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246 {
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247 SDL_AudioDevice *device = (SDL_AudioDevice *) devicep;
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248 const int legacy_device = (device == open_devices[0]);
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249 Uint8 *stream;
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250 int stream_len;
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251 void *udata;
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252 void (SDLCALL * fill) (void *userdata, Uint8 * stream, int len);
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253 int silence;
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254
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255 /* !!! FIXME: can we push this into the Amiga driver? */
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256 #if SDL_AUDIO_DRIVER_AHI
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257 #error this is probably broken.
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258 int started = 0;
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259
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260 /* AmigaOS NEEDS that the audio driver is opened in the thread that uses it! */
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261
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262 D(bug("Task audio started audio struct:<%lx>...\n", audiop));
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263
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264 D(bug("Before Openaudio..."));
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265 if (audio->OpenAudio(audio, &audio->spec) == -1) {
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266 D(bug("Open audio failed...\n"));
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267 return (-1);
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268 }
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269 D(bug("OpenAudio...OK\n"));
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270 #endif
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271
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272 /* Perform any thread setup */
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273 device->threadid = SDL_ThreadID();
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274 current_audio.impl.ThreadInit(device);
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275
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276 /* Set up the mixing function */
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277 fill = device->spec.callback;
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278 udata = device->spec.userdata;
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279
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280 #if SDL_AUDIO_DRIVER_AHI
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281 audio_configured = 1;
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282
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283 D(bug("Audio configured... Checking for conversion\n"));
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284 SDL_mutexP(audio->mixer_lock);
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285 D(bug("Semaphore obtained...\n"));
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286 #endif
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287
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288 if (device->convert.needed) {
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289 if (device->convert.src_format == AUDIO_U8) {
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290 silence = 0x80;
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291 } else {
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292 silence = 0;
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293 }
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294 stream_len = device->convert.len;
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295 } else {
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296 silence = device->spec.silence;
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297 stream_len = device->spec.size;
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298 }
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299
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300 #if SDL_AUDIO_DRIVER_AHI
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301 SDL_mutexV(device->mixer_lock);
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302 D(bug("Entering audio loop...\n"));
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303 #endif
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304
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305 /* Loop, filling the audio buffers */
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306 while (device->enabled) {
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307
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308 /* Fill the current buffer with sound */
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309 if (device->convert.needed) {
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310 if (device->convert.buf) {
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311 stream = device->convert.buf;
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312 } else {
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313 continue;
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314 }
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315 } else {
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316 stream = current_audio.impl.GetDeviceBuf(device);
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317 if (stream == NULL) {
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318 stream = device->fake_stream;
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319 }
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320 }
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321
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322 /* New code should fill buffer or set it to silence themselves. */
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323 if (legacy_device) {
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324 SDL_memset(stream, silence, stream_len);
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325 }
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326
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327 if (!device->paused) {
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328 SDL_mutexP(device->mixer_lock);
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329 (*fill) (udata, stream, stream_len);
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330 SDL_mutexV(device->mixer_lock);
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331 }
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332
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333 /* Convert the audio if necessary */
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334 if (device->convert.needed) {
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335 SDL_ConvertAudio(&device->convert);
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diff changeset
336 stream = current_audio.impl.GetDeviceBuf(device);
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337 if (stream == NULL) {
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338 stream = device->fake_stream;
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339 }
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340 SDL_memcpy(stream, device->convert.buf, device->convert.len_cvt);
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341 }
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342
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diff changeset
343 /* Ready current buffer for play and change current buffer */
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344 if (stream != device->fake_stream) {
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diff changeset
345 current_audio.impl.PlayDevice(device);
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346 }
1562
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diff changeset
347
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348 /* Wait for an audio buffer to become available */
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349 if (stream == device->fake_stream) {
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diff changeset
350 SDL_Delay((device->spec.samples * 1000) / device->spec.freq);
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351 } else {
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diff changeset
352 current_audio.impl.WaitDevice(device);
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353 }
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diff changeset
354 }
1562
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parents: 1561
diff changeset
355
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diff changeset
356 /* Wait for the audio to drain.. */
3796
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diff changeset
357 current_audio.impl.WaitDone(device);
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diff changeset
358
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
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diff changeset
359 /* !!! FIXME: get this out of core. */
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diff changeset
360 #if SDL_AUDIO_DRIVER_AHI
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diff changeset
361 D(bug("WaitDevice...Done\n"));
3796
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diff changeset
362 current_audio.impl.CloseDevice(device);
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diff changeset
363 device->opened = 0;
3792
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diff changeset
364 D(bug("CloseDevice..Done, subtask exiting...\n"));
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diff changeset
365 audio_configured = 0;
21
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parents: 0
diff changeset
366 #endif
3796
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diff changeset
367
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diff changeset
368 return (0);
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diff changeset
369 }
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370
322
fd93a09655e3 The audio lock and unlock functions are now a part of the driver.
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diff changeset
371
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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diff changeset
372 static SDL_AudioFormat
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diff changeset
373 SDL_ParseAudioFormat(const char *string)
1794
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parents: 1769
diff changeset
374 {
3781
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parents: 2045
diff changeset
375 #define CHECK_FMT_STRING(x) if (strcmp(string, #x) == 0) return AUDIO_##x
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
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diff changeset
376 CHECK_FMT_STRING(U8);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
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parents: 2045
diff changeset
377 CHECK_FMT_STRING(S8);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
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diff changeset
378 CHECK_FMT_STRING(U16LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
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parents: 2045
diff changeset
379 CHECK_FMT_STRING(S16LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
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parents: 2045
diff changeset
380 CHECK_FMT_STRING(U16MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
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diff changeset
381 CHECK_FMT_STRING(S16MSB);
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parents: 2045
diff changeset
382 CHECK_FMT_STRING(U16SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
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parents: 2045
diff changeset
383 CHECK_FMT_STRING(S16SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
384 CHECK_FMT_STRING(U16);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
385 CHECK_FMT_STRING(S16);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
386 CHECK_FMT_STRING(S32LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
387 CHECK_FMT_STRING(S32MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
388 CHECK_FMT_STRING(S32SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
389 CHECK_FMT_STRING(S32);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
390 CHECK_FMT_STRING(F32LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
391 CHECK_FMT_STRING(F32MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
392 CHECK_FMT_STRING(F32SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
393 CHECK_FMT_STRING(F32);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
394 #undef CHECK_FMT_STRING
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
395 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
396 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
397
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
398 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
399 SDL_GetNumAudioDrivers(void)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
400 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
401 return (SDL_arraysize(bootstrap) - 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
402 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
403
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
404 const char *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
405 SDL_GetAudioDriver(int index)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
406 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
407 if (index >= 0 && index < SDL_GetNumAudioDrivers()) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
408 return (bootstrap[index]->name);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
409 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
410 return (NULL);
1794
5605a9820134 Fixed bug #137
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
411 }
5605a9820134 Fixed bug #137
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
412
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
413 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
414 SDL_AudioInit(const char *driver_name)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415 {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
416 int i = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
417 int initialized = 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
419 if (SDL_WasInit(SDL_INIT_AUDIO)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
420 SDL_AudioQuit(); /* shutdown driver if already running. */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
421 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
422
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
423 SDL_memset(&current_audio, '\0', sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
424 SDL_memset(open_devices, '\0', sizeof (open_devices));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
425
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
426 /* !!! FIXME: build a priority list of available drivers... */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
427
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
428 /* Select the proper audio driver */
1909
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit()
Sam Lantinga <slouken@libsdl.org>
parents: 1903
diff changeset
429 if (driver_name == NULL) {
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit()
Sam Lantinga <slouken@libsdl.org>
parents: 1903
diff changeset
430 driver_name = SDL_getenv("SDL_AUDIODRIVER");
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit()
Sam Lantinga <slouken@libsdl.org>
parents: 1903
diff changeset
431 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
432
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
433 /* !!! FIXME: move this esound shite into the esound driver... */
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
434 #if SDL_AUDIO_DRIVER_ESD
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
435 if ((driver_name == NULL) && (SDL_getenv("ESPEAKER") != NULL)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
436 /* Ahem, we know that if ESPEAKER is set, user probably wants
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
437 to use ESD, but don't start it if it's not already running.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
438 This probably isn't the place to do this, but... Shh! :)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
439 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
440 for (i = 0; bootstrap[i]; ++i) {
2045
510892a215a2 Replaced strncmp for SDL_AUDIODRIVER test with strcasecmp.
Ryan C. Gordon <icculus@icculus.org>
parents: 1993
diff changeset
441 if (SDL_strcasecmp(bootstrap[i]->name, "esd") == 0) {
1341
d02b552e5304 Configure dynamically generates SDL_config.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
442 #ifdef HAVE_PUTENV
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
443 const char *esd_no_spawn;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
444
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
445 /* Don't start ESD if it's not running */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
446 esd_no_spawn = getenv("ESD_NO_SPAWN");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
447 if (esd_no_spawn == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
448 putenv("ESD_NO_SPAWN=1");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
449 }
1341
d02b552e5304 Configure dynamically generates SDL_config.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
450 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
451 if (bootstrap[i]->available()) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
452 SDL_memset(&current_audio, 0, sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
453 current_audio.name = bootstrap[i]->name;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
454 current_audio.desc = bootstrap[i]->desc;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
455 initialized = bootstrap[i]->init(&current_audio.impl);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
456 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
457 }
1341
d02b552e5304 Configure dynamically generates SDL_config.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
458 #ifdef HAVE_UNSETENV
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
459 if (esd_no_spawn == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
460 unsetenv("ESD_NO_SPAWN");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
461 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
462 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
463 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
464 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
465 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
466 #endif /* SDL_AUDIO_DRIVER_ESD */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
467
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
468 if (!initialized) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
469 if (driver_name != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
470 for (i = 0; bootstrap[i]; ++i) {
2045
510892a215a2 Replaced strncmp for SDL_AUDIODRIVER test with strcasecmp.
Ryan C. Gordon <icculus@icculus.org>
parents: 1993
diff changeset
471 if (SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
472 if (bootstrap[i]->available()) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
473 SDL_memset(&current_audio, 0, sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
474 current_audio.name = bootstrap[i]->name;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
475 current_audio.desc = bootstrap[i]->desc;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
476 initialized = bootstrap[i]->init(&current_audio.impl);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
477 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
478 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
479 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
480 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
481 } else {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
482 for (i = 0; (!initialized) && (bootstrap[i]); ++i) {
3798
c8b3d3d13ed1 Audio bootstraps can now specify that a driver is only to be used if
Ryan C. Gordon <icculus@icculus.org>
parents: 3796
diff changeset
483 if ((!bootstrap[i]->demand) && (bootstrap[i]->available())) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
484 SDL_memset(&current_audio, 0, sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
485 current_audio.name = bootstrap[i]->name;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
486 current_audio.desc = bootstrap[i]->desc;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
487 initialized = bootstrap[i]->init(&current_audio.impl);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
488 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
489 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
490 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
491 if (!initialized) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
492 if (driver_name) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
493 SDL_SetError("%s not available", driver_name);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
494 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
495 SDL_SetError("No available audio device");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
496 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
497 SDL_memset(&current_audio, 0, sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
498 return (-1); /* No driver was available, so fail. */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
499 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
500 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
501
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
502 finalize_audio_entry_points();
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 3792
diff changeset
503
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
504 return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
505 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
506
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
507 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
508 * Get the current audio driver name
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
509 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
510 const char *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
511 SDL_GetCurrentAudioDriver()
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
512 {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
513 return current_audio.name;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
514 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
515
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
516
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
517 int
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
518 SDL_GetNumAudioDevices(int iscapture)
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
519 {
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
520 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
521 return -1;
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
522 }
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
523 if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
524 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
525 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
526
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
527 if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
528 return 1;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
529 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
530
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
531 if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
532 return 1;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
533 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
534
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
535 return current_audio.impl.DetectDevices(iscapture);
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
536 }
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
537
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
538
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
539 const char *
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
540 SDL_GetAudioDeviceName(int index, int iscapture)
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
541 {
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
542 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
543 SDL_SetError("Audio subsystem is not initialized");
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
544 return NULL;
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
545 }
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
546
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
547 if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
548 SDL_SetError("No capture support");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
549 return NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
550 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
551
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
552 if (index < 0) {
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
553 SDL_SetError("No such device");
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
554 return NULL;
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
555 }
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
556
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
557 if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
558 return DEFAULT_INPUT_DEVNAME;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
559 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
560
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
561 if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
562 return DEFAULT_OUTPUT_DEVNAME;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
563 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
564
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
565 return current_audio.impl.GetDeviceName(index, iscapture);
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
566 }
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
567
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
568
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
569 static void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
570 close_audio_device(SDL_AudioDevice *device)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
571 {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
572 device->enabled = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
573 if (device->thread != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
574 SDL_WaitThread(device->thread, NULL);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
575 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
576 if (device->mixer_lock != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
577 SDL_DestroyMutex(device->mixer_lock);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
578 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
579 if (device->fake_stream != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
580 SDL_FreeAudioMem(device->fake_stream);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
581 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
582 if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
583 SDL_FreeAudioMem(device->convert.buf);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
584 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
585 if (device->opened) {
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
586 current_audio.impl.CloseDevice(device);
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
587 device->opened = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
588 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
589 SDL_FreeAudioMem(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
590 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
591
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
592
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
593 /*
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
594 * Sanity check desired AudioSpec for SDL_OpenAudio() in (orig).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
595 * Fills in a sanitized copy in (prepared).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
596 * Returns non-zero if okay, zero on fatal parameters in (orig).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
597 */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
598 static int
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
599 prepare_audiospec(const SDL_AudioSpec *orig, SDL_AudioSpec *prepared)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
600 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
601 SDL_memcpy(prepared, orig, sizeof (SDL_AudioSpec));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
602
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
603 if (orig->callback == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
604 SDL_SetError("SDL_OpenAudio() passed a NULL callback");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
605 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
606 }
262
ba5363e21df8 Don't allow multiple audio opens to succeed (until SDL 1.3)
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
607
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
608 if (orig->freq == 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
609 const char *env = SDL_getenv("SDL_AUDIO_FREQUENCY");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
610 if ( (!env) || ((prepared->freq = SDL_atoi(env)) == 0) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
611 prepared->freq = 22050; /* a reasonable default */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
612 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
613 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
614
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
615 if (orig->format == 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
616 const char *env = SDL_getenv("SDL_AUDIO_FORMAT");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
617 if ((!env) || ((prepared->format = SDL_ParseAudioFormat(env)) == 0)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
618 prepared->format = AUDIO_S16; /* a reasonable default */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
619 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
620 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
621
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
622 switch (orig->channels) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
623 case 0: {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
624 const char *env = SDL_getenv("SDL_AUDIO_CHANNELS");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
625 if ( (!env) || ((prepared->channels = SDL_atoi(env)) == 0) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
626 prepared->channels = 2; /* a reasonable default */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
627 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
628 break;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
629 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
630 case 1: /* Mono */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
631 case 2: /* Stereo */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
632 case 4: /* surround */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
633 case 6: /* surround with center and lfe */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
634 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
635 default:
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
636 SDL_SetError("Unsupported number of audio channels.");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
637 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
638 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
639
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
640 if (orig->samples == 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
641 const char *env = SDL_getenv("SDL_AUDIO_SAMPLES");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
642 if ( (!env) || ((prepared->samples = (Uint16) SDL_atoi(env)) == 0) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
643 /* Pick a default of ~46 ms at desired frequency */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
644 /* !!! FIXME: remove this when the non-Po2 resampling is in. */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
645 const int samples = (prepared->freq / 1000) * 46;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
646 int power2 = 1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
647 while (power2 < samples) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
648 power2 *= 2;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
649 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
650 prepared->samples = power2;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
651 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
652 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
653
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
654 /* Calculate the silence and size of the audio specification */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
655 SDL_CalculateAudioSpec(prepared);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
656
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
657 return 1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
658 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
659
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
660
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
661 static SDL_AudioDeviceID
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
662 open_audio_device(const char *devname, int iscapture,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
663 const SDL_AudioSpec *_desired, SDL_AudioSpec *obtained,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
664 int min_id)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
665 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
666 SDL_AudioDeviceID id = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
667 SDL_AudioSpec desired;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
668 SDL_AudioDevice *device;
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
669 int i = 0;
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
670
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
671 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
672 SDL_SetError("Audio subsystem is not initialized");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
673 return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
674 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
675
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
676 if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
677 SDL_SetError("No capture support");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
678 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
679 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
680
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
681 if (!prepare_audiospec(_desired, &desired)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
682 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
683 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
684
3786
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
685 /* If app doesn't care about a specific device, let the user override. */
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
686 if (devname == NULL) {
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
687 devname = SDL_getenv("SDL_AUDIO_DEVICE_NAME");
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
688 }
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
689
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
690 /*
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
691 * Catch device names at the high level for the simple case...
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
692 * This lets us have a basic "device enumeration" for systems that
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
693 * don't have multiple devices, but makes sure the device name is
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
694 * always NULL when it hits the low level.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
695 *
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
696 * Also make sure that the simple case prevents multiple simultaneous
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
697 * opens of the default system device.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
698 */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
699
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
700 if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
701 if ((devname) && (SDL_strcmp(devname, DEFAULT_INPUT_DEVNAME) != 0)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
702 SDL_SetError("No such device");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
703 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
704 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
705 devname = NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
706
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
707 for (i = 0; i < SDL_arraysize(open_devices); i++) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
708 if ((open_devices[i]) && (open_devices[i]->iscapture)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
709 SDL_SetError("Audio device already open");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
710 return;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
711 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
712 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
713 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
714
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
715 if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
716 if ((devname) && (SDL_strcmp(devname, DEFAULT_OUTPUT_DEVNAME) != 0)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
717 SDL_SetError("No such device");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
718 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
719 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
720 devname = NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
721
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
722 for (i = 0; i < SDL_arraysize(open_devices); i++) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
723 if ((open_devices[i]) && (!open_devices[i]->iscapture)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
724 SDL_SetError("Audio device already open");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
725 return;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
726 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
727 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
728 }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
729
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
730 device = (SDL_AudioDevice *) SDL_AllocAudioMem(sizeof (SDL_AudioDevice));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
731 if (device == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
732 SDL_OutOfMemory();
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
733 return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
734 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
735 SDL_memset(device, '\0', sizeof (SDL_AudioDevice));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
736 SDL_memcpy(&device->spec, &desired, sizeof (SDL_AudioSpec));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
737 device->enabled = 1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
738 device->paused = 1;
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
739 device->iscapture = iscapture;
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
740
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
741 /* Create a semaphore for locking the sound buffers */
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
742 if (!current_audio.impl.SkipMixerLock) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
743 device->mixer_lock = SDL_CreateMutex();
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
744 if (device->mixer_lock == NULL) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
745 close_audio_device(device);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
746 SDL_SetError("Couldn't create mixer lock");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
747 return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
748 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
749 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
750
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
751 /* !!! FIXME: Get this #if out of the core. */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
752 /* AmigaOS opens audio inside the main loop */
1406
39ca9a4b22f3 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
753 #if !SDL_AUDIO_DRIVER_AHI
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
754 if (!current_audio.impl.OpenDevice(device, devname, iscapture)) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
755 close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
756 return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
757 }
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
758 device->opened = 1;
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
759 #else
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
760 # error needs to be fixed for new internal API. Email Ryan for details.
21
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
761
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
762 D(bug("Locking semaphore..."));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
763 SDL_mutexP(audio->mixer_lock);
1408
ceb5c2fec4f1 Fixed some preprocessor mangling
Sam Lantinga <slouken@libsdl.org>
parents: 1406
diff changeset
764
21
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
765
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
766 audio->thread = SDL_CreateThread(SDL_RunAudio, audio);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
767 D(bug("Created thread...\n"));
21
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
768
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
769 if (audio->thread == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
770 SDL_mutexV(audio->mixer_lock);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
771 SDL_CloseAudio();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
772 SDL_SetError("Couldn't create audio thread");
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
773 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
774 }
21
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
775
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
776 while (!audio_configured)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
777 SDL_Delay(100);
21
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
778 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
779
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
780 /* If the audio driver changes the buffer size, accept it */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
781 if (device->spec.samples != desired.samples) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
782 desired.samples = device->spec.samples;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
783 SDL_CalculateAudioSpec(&device->spec);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
784 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
785
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
786 /* Allocate a fake audio memory buffer */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
787 device->fake_stream = SDL_AllocAudioMem(device->spec.size);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
788 if (device->fake_stream == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
789 close_audio_device(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
790 SDL_OutOfMemory();
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
791 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
792 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
793
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
794 /* See if we need to do any conversion */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
795 if (obtained != NULL) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
796 SDL_memcpy(obtained, &device->spec, sizeof(SDL_AudioSpec));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
797 } else if (desired.freq != device->spec.freq ||
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
798 desired.format != device->spec.format ||
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
799 desired.channels != device->spec.channels) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
800 /* Build an audio conversion block */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
801 if (SDL_BuildAudioCVT(&device->convert,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
802 desired.format, desired.channels,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
803 desired.freq,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
804 device->spec.format, device->spec.channels,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
805 device->spec.freq) < 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
806 close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
807 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
808 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
809 if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
810 device->convert.len = desired.size;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
811 device->convert.buf =
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
812 (Uint8 *) SDL_AllocAudioMem(device->convert.len *
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
813 device->convert.len_mult);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
814 if (device->convert.buf == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
815 close_audio_device(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
816 SDL_OutOfMemory();
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
817 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
818 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
819 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
820 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
821
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
822 /* Find an available device ID and store the structure... */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
823 for (id = min_id-1; id < SDL_arraysize(open_devices); id++) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
824 if (open_devices[id] == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
825 open_devices[id] = device;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
826 break;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
827 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
828 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
829
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
830 /* !!! FIXME: remove static array... */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
831 if (id == SDL_arraysize(open_devices)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
832 SDL_SetError("Too many open audio devices");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
833 close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
834 return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
835 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
836
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
837 /* !!! FIXME: get this out of core. */
1406
39ca9a4b22f3 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
838 #if !SDL_AUDIO_DRIVER_AHI
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
839 /* Start the audio thread if necessary */
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
840 if (!current_audio.impl.ProvidesOwnCallbackThread) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
841 /* Start the audio thread */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
842 /* !!! FIXME: this is nasty. */
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1379
diff changeset
843 #if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC)
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
844 #undef SDL_CreateThread
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
845 device->thread = SDL_CreateThread(SDL_RunAudio, device, NULL, NULL);
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
846 #else
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
847 device->thread = SDL_CreateThread(SDL_RunAudio, device);
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
848 #endif
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
849 if (device->thread == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
850 SDL_CloseAudioDevice(id+1);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
851 SDL_SetError("Couldn't create audio thread");
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
852 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
853 }
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
854 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
855
21
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
856 #else
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
857 SDL_mutexV(audio->mixer_lock);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
858 D(bug("SDL_OpenAudio USCITA...\n"));
21
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
859
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
860 #endif
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
861
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
862 return id+1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
863 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
864
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
865
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
866 int
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
867 SDL_OpenAudio(const SDL_AudioSpec * desired, SDL_AudioSpec * obtained)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
868 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
869 SDL_AudioDeviceID id = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
870
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
871 /* Start up the audio driver, if necessary. This is legacy behaviour! */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
872 if (!SDL_WasInit(SDL_INIT_AUDIO)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
873 if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
874 return (-1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
875 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
876 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
877
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
878 /* SDL_OpenAudio() is legacy and can only act on Device ID #1. */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
879 if (open_devices[0] != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
880 SDL_SetError("Audio device is already opened");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
881 return (-1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
882 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
883
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
884 id = open_audio_device(NULL, 0, desired, obtained, 1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
885 if (id > 1) { /* this should never happen in theory... */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
886 SDL_CloseAudioDevice(id);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
887 SDL_SetError("Internal error"); /* MUST be Device ID #1! */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
888 return (-1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
889 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
890
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
891 return ((id == 0) ? -1 : 0);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
892 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
893
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
894 SDL_AudioDeviceID
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
895 SDL_OpenAudioDevice(const char *device, int iscapture,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
896 const SDL_AudioSpec *desired, SDL_AudioSpec *obtained)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
897 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
898 return open_audio_device(device, iscapture, desired, obtained, 2);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
899 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
900
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
901 SDL_audiostatus
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
902 SDL_GetAudioDeviceStatus(SDL_AudioDeviceID devid)
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
903 {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
904 SDL_AudioDevice *device = get_audio_device(devid);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
905 SDL_audiostatus status = SDL_AUDIO_STOPPED;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
906 if (device && device->enabled) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
907 if (device->paused) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
908 status = SDL_AUDIO_PAUSED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
909 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
910 status = SDL_AUDIO_PLAYING;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
911 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
912 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
913 return (status);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
914 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
915
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
916
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
917 SDL_audiostatus
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
918 SDL_GetAudioStatus(void)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
919 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
920 return SDL_GetAudioDeviceStatus(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
921 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
922
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
923 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
924 SDL_PauseAudioDevice(SDL_AudioDeviceID devid, int pause_on)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
925 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
926 SDL_AudioDevice *device = get_audio_device(devid);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
927 if (device) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
928 device->paused = pause_on;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
929 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
930 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
931
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
932 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
933 SDL_PauseAudio(int pause_on)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
934 {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
935 SDL_PauseAudioDevice(1, pause_on);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
936 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
937
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
938
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
939 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
940 SDL_LockAudioDevice(SDL_AudioDeviceID devid)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
941 {
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
942 /* Obtain a lock on the mixing buffers */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
943 SDL_AudioDevice *device = get_audio_device(devid);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
944 if (device) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
945 current_audio.impl.LockDevice(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
946 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
947 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
948
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
949 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
950 SDL_LockAudio(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
951 {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
952 SDL_LockAudioDevice(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
953 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
954
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
955 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
956 SDL_UnlockAudioDevice(SDL_AudioDeviceID devid)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
957 {
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
958 /* Obtain a lock on the mixing buffers */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
959 SDL_AudioDevice *device = get_audio_device(devid);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
960 if (device) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
961 current_audio.impl.UnlockDevice(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
962 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
963 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
964
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
965 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
966 SDL_UnlockAudio(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
967 {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
968 SDL_UnlockAudioDevice(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
969 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
970
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
971 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
972 SDL_CloseAudioDevice(SDL_AudioDeviceID devid)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
973 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
974 SDL_AudioDevice *device = get_audio_device(devid);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
975 if (device) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
976 close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
977 open_devices[devid-1] = NULL;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
978 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
979 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
980
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
981 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
982 SDL_CloseAudio(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
983 {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
984 SDL_CloseAudioDevice(1);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
985 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
986
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
987 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
988 SDL_AudioQuit(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
989 {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
990 SDL_AudioDeviceID i;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
991 for (i = 0; i < SDL_arraysize(open_devices); i++) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
992 SDL_CloseAudioDevice(i);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
993 }
3787
8d74a4721ca9 Added deinitialize hook.
Ryan C. Gordon <icculus@icculus.org>
parents: 3786
diff changeset
994
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
995 /* Free the driver data */
3788
7006b176ef4f More work on the 1.3 CoreAudio code.
Ryan C. Gordon <icculus@icculus.org>
parents: 3787
diff changeset
996 current_audio.impl.Deinitialize();
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
997 SDL_memset(&current_audio, '\0', sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
998 SDL_memset(open_devices, '\0', sizeof (open_devices));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
999 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1000
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1001 #define NUM_FORMATS 10
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1002 static int format_idx;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1003 static int format_idx_sub;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1004 static SDL_AudioFormat format_list[NUM_FORMATS][NUM_FORMATS] = {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1005 {AUDIO_U8, AUDIO_S8, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB,
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1006 AUDIO_U16MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB},
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1007 {AUDIO_S8, AUDIO_U8, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB,
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1008 AUDIO_U16MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB},
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1009 {AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_S32LSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1010 AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_U8, AUDIO_S8},
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1011 {AUDIO_S16MSB, AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_S32MSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1012 AUDIO_S32LSB, AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_U8, AUDIO_S8},
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1013 {AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_S32LSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1014 AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_U8, AUDIO_S8},
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1015 {AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_S16MSB, AUDIO_S16LSB, AUDIO_S32MSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1016 AUDIO_S32LSB, AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_U8, AUDIO_S8},
1993
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
1017 {AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_S16LSB,
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
1018 AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_U8, AUDIO_S8},
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
1019 {AUDIO_S32MSB, AUDIO_S32LSB, AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_S16MSB,
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
1020 AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8},
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
1021 {AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_S16LSB,
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
1022 AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_U8, AUDIO_S8},
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
1023 {AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_S32MSB, AUDIO_S32LSB, AUDIO_S16MSB,
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
1024 AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8},
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1025 };
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1026
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1027 SDL_AudioFormat
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1028 SDL_FirstAudioFormat(SDL_AudioFormat format)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1029 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1030 for (format_idx = 0; format_idx < NUM_FORMATS; ++format_idx) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1031 if (format_list[format_idx][0] == format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1032 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1033 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1034 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1035 format_idx_sub = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1036 return (SDL_NextAudioFormat());
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1037 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1038
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
1039 SDL_AudioFormat
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1040 SDL_NextAudioFormat(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1041 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1042 if ((format_idx == NUM_FORMATS) || (format_idx_sub == NUM_FORMATS)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1043 return (0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1044 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1045 return (format_list[format_idx][format_idx_sub++]);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1046 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1047
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1048 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1049 SDL_CalculateAudioSpec(SDL_AudioSpec * spec)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1050 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1051 switch (spec->format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1052 case AUDIO_U8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1053 spec->silence = 0x80;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1054 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1055 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1056 spec->silence = 0x00;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1057 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1058 }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1059 spec->size = SDL_AUDIO_BITSIZE(spec->format) / 8;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1060 spec->size *= spec->channels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1061 spec->size *= spec->samples;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1062 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1063
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1064
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1065 /*
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1066 * Moved here from SDL_mixer.c, since it relies on internals of an opened
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1067 * audio device (and is deprecated, by the way!).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1068 */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1069 void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1070 SDL_MixAudio(Uint8 * dst, const Uint8 * src, Uint32 len, int volume)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1071 {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1072 /* Mix the user-level audio format */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1073 SDL_AudioDevice *device = get_audio_device(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1074 if (device != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1075 SDL_AudioFormat format;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1076 if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1077 format = device->convert.src_format;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1078 } else {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1079 format = device->spec.format;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1080 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1081 SDL_MixAudioFormat(dst, src, format, len, volume);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1082 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1083 }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
1084
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
1085 /* vi: set ts=4 sw=4 expandtab: */