annotate src/audio/SDL_sysaudio.h @ 4322:a8e5b518e194 SDL-1.2

Forcibly disabled MMX mixers. Hopefully fixes Bugzilla #649.
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 12 Oct 2009 08:58:12 +0000
parents 5007e6a66814
children fe15c4e8efe6
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is SDL_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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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 #ifndef _SDL_sysaudio_h
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25 #define _SDL_sysaudio_h
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26
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27 #include "SDL_mutex.h"
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28 #include "SDL_thread.h"
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29
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30 /* The SDL audio driver */
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31 typedef struct SDL_AudioDevice SDL_AudioDevice;
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32
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33 /* Define the SDL audio driver structure */
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34 #define _THIS SDL_AudioDevice *_this
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35 #ifndef _STATUS
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36 #define _STATUS SDL_status *status
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37 #endif
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38 struct SDL_AudioDevice {
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39 /* * * */
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40 /* The name of this audio driver */
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41 const char *name;
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42
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43 /* * * */
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44 /* The description of this audio driver */
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45 const char *desc;
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46
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47 /* * * */
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48 /* Public driver functions */
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49 int (*OpenAudio)(_THIS, SDL_AudioSpec *spec);
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50 void (*ThreadInit)(_THIS); /* Called by audio thread at start */
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51 void (*WaitAudio)(_THIS);
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52 void (*PlayAudio)(_THIS);
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53 Uint8 *(*GetAudioBuf)(_THIS);
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54 void (*WaitDone)(_THIS);
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55 void (*CloseAudio)(_THIS);
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56
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57 /* * * */
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58 /* Lock / Unlock functions added for the Mac port */
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59 void (*LockAudio)(_THIS);
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60 void (*UnlockAudio)(_THIS);
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61
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62 /* * * */
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63 /* Data common to all devices */
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64
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65 /* The current audio specification (shared with audio thread) */
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66 SDL_AudioSpec spec;
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67
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68 /* An audio conversion block for audio format emulation */
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69 SDL_AudioCVT convert;
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70
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71 /* Current state flags */
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72 int enabled;
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73 int paused;
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74 int opened;
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75
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76 /* Fake audio buffer for when the audio hardware is busy */
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77 Uint8 *fake_stream;
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78
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79 /* A semaphore for locking the mixing buffers */
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80 SDL_mutex *mixer_lock;
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81
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82 /* A thread to feed the audio device */
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83 SDL_Thread *thread;
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84 Uint32 threadid;
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85
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86 /* * * */
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87 /* Data private to this driver */
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88 struct SDL_PrivateAudioData *hidden;
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89
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90 /* * * */
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91 /* The function used to dispose of this structure */
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92 void (*free)(_THIS);
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93 };
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94 #undef _THIS
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95
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96 typedef struct AudioBootStrap {
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97 const char *name;
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98 const char *desc;
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99 int (*available)(void);
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100 SDL_AudioDevice *(*create)(int devindex);
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101 } AudioBootStrap;
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102
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103 #if SDL_AUDIO_DRIVER_BSD
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104 extern AudioBootStrap BSD_AUDIO_bootstrap;
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105 #endif
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106 #if SDL_AUDIO_DRIVER_PULSE
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107 extern AudioBootStrap PULSE_bootstrap;
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108 #endif
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109 #if SDL_AUDIO_DRIVER_ALSA
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110 extern AudioBootStrap ALSA_bootstrap;
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111 #endif
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112 #if SDL_AUDIO_DRIVER_OSS
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113 extern AudioBootStrap DSP_bootstrap;
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114 extern AudioBootStrap DMA_bootstrap;
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115 #endif
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116 #if SDL_AUDIO_DRIVER_QNXNTO
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117 extern AudioBootStrap QNXNTOAUDIO_bootstrap;
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118 #endif
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119 #if SDL_AUDIO_DRIVER_SUNAUDIO
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120 extern AudioBootStrap SUNAUDIO_bootstrap;
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121 #endif
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122 #if SDL_AUDIO_DRIVER_DMEDIA
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123 extern AudioBootStrap DMEDIA_bootstrap;
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124 #endif
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125 #if SDL_AUDIO_DRIVER_ARTS
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126 extern AudioBootStrap ARTS_bootstrap;
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127 #endif
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128 #if SDL_AUDIO_DRIVER_ESD
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129 extern AudioBootStrap ESD_bootstrap;
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130 #endif
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131 #if SDL_AUDIO_DRIVER_NAS
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132 extern AudioBootStrap NAS_bootstrap;
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133 #endif
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134 #if SDL_AUDIO_DRIVER_DSOUND
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135 extern AudioBootStrap DSOUND_bootstrap;
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136 #endif
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137 #if SDL_AUDIO_DRIVER_WAVEOUT
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138 extern AudioBootStrap WAVEOUT_bootstrap;
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139 #endif
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140 #if SDL_AUDIO_DRIVER_PAUD
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141 extern AudioBootStrap Paud_bootstrap;
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142 #endif
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143 #if SDL_AUDIO_DRIVER_BAUDIO
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144 extern AudioBootStrap BAUDIO_bootstrap;
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145 #endif
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146 #if SDL_AUDIO_DRIVER_COREAUDIO
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147 extern AudioBootStrap COREAUDIO_bootstrap;
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148 #endif
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149 #if SDL_AUDIO_DRIVER_SNDMGR
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150 extern AudioBootStrap SNDMGR_bootstrap;
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151 #endif
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152 #if SDL_AUDIO_DRIVER_MINT
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153 extern AudioBootStrap MINTAUDIO_GSXB_bootstrap;
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154 extern AudioBootStrap MINTAUDIO_MCSN_bootstrap;
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155 extern AudioBootStrap MINTAUDIO_STFA_bootstrap;
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156 extern AudioBootStrap MINTAUDIO_XBIOS_bootstrap;
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157 extern AudioBootStrap MINTAUDIO_DMA8_bootstrap;
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158 #endif
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159 #if SDL_AUDIO_DRIVER_DISK
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160 extern AudioBootStrap DISKAUD_bootstrap;
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161 #endif
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162 #if SDL_AUDIO_DRIVER_DUMMY
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163 extern AudioBootStrap DUMMYAUD_bootstrap;
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164 #endif
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165 #if SDL_AUDIO_DRIVER_DC
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166 extern AudioBootStrap DCAUD_bootstrap;
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167 #endif
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168 #if SDL_AUDIO_DRIVER_NDS
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169 extern AudioBootStrap NDSAUD_bootstrap;
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170 #endif
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171 #if SDL_AUDIO_DRIVER_MMEAUDIO
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172 extern AudioBootStrap MMEAUDIO_bootstrap;
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173 #endif
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174 #if SDL_AUDIO_DRIVER_DART
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175 extern AudioBootStrap DART_bootstrap;
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176 #endif
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177 #if SDL_AUDIO_DRIVER_EPOCAUDIO
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178 extern AudioBootStrap EPOCAudio_bootstrap;
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179 #endif
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180
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181 /* This is the current audio device */
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182 extern SDL_AudioDevice *current_audio;
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183
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184 #endif /* _SDL_sysaudio_h */