Mercurial > sdl-ios-xcode
annotate src/audio/SDL_sysaudio.h @ 262:ba5363e21df8
Don't allow multiple audio opens to succeed (until SDL 1.3)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 09 Jan 2002 16:04:58 +0000 |
| parents | e8157fcb3114 |
| children | f6ffac90895c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga | |
| 4 | |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #ifndef _SDL_sysaudio_h | |
| 29 #define _SDL_sysaudio_h | |
| 30 | |
| 31 #include "SDL_mutex.h" | |
| 32 #include "SDL_thread.h" | |
| 33 | |
| 34 /* The SDL audio driver */ | |
| 35 typedef struct SDL_AudioDevice SDL_AudioDevice; | |
| 36 | |
| 37 /* Define the SDL audio driver structure */ | |
| 38 #define _THIS SDL_AudioDevice *_this | |
| 39 #ifndef _STATUS | |
| 40 #define _STATUS SDL_status *status | |
| 41 #endif | |
| 42 struct SDL_AudioDevice { | |
| 43 /* * * */ | |
| 44 /* The name of this audio driver */ | |
| 45 const char *name; | |
| 46 | |
| 47 /* * * */ | |
| 48 /* The description of this audio driver */ | |
| 49 const char *desc; | |
| 50 | |
| 51 /* * * */ | |
| 52 /* Public driver functions */ | |
| 53 int (*OpenAudio)(_THIS, SDL_AudioSpec *spec); | |
| 54 void (*ThreadInit)(_THIS); /* Called by audio thread at start */ | |
| 55 void (*WaitAudio)(_THIS); | |
| 56 void (*PlayAudio)(_THIS); | |
| 57 Uint8 *(*GetAudioBuf)(_THIS); | |
| 58 void (*WaitDone)(_THIS); | |
| 59 void (*CloseAudio)(_THIS); | |
| 60 | |
| 61 /* * * */ | |
| 62 /* Data common to all devices */ | |
| 63 | |
| 64 /* The current audio specification (shared with audio thread) */ | |
| 65 SDL_AudioSpec spec; | |
| 66 | |
| 67 /* An audio conversion block for audio format emulation */ | |
| 68 SDL_AudioCVT convert; | |
| 69 | |
| 70 /* Current state flags */ | |
| 71 int enabled; | |
| 72 int paused; | |
| 73 int opened; | |
| 74 | |
| 75 /* Fake audio buffer for when the audio hardware is busy */ | |
| 76 Uint8 *fake_stream; | |
| 77 | |
| 78 /* A semaphore for locking the mixing buffers */ | |
| 79 SDL_mutex *mixer_lock; | |
| 80 | |
| 81 /* A thread to feed the audio device */ | |
| 82 SDL_Thread *thread; | |
| 83 Uint32 threadid; | |
| 84 | |
| 85 /* * * */ | |
| 86 /* Data private to this driver */ | |
| 87 struct SDL_PrivateAudioData *hidden; | |
| 88 | |
| 89 /* * * */ | |
| 90 /* The function used to dispose of this structure */ | |
| 91 void (*free)(_THIS); | |
| 92 }; | |
| 93 #undef _THIS | |
| 94 | |
| 95 typedef struct AudioBootStrap { | |
| 96 const char *name; | |
| 97 const char *desc; | |
| 98 int (*available)(void); | |
| 99 SDL_AudioDevice *(*create)(int devindex); | |
| 100 } AudioBootStrap; | |
| 101 | |
|
121
43febd46d49d
Name changed from OBSD to OPENBSD_AUDIO
Sam Lantinga <slouken@libsdl.org>
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102 #ifdef OPENBSD_AUDIO_SUPPORT |
|
43febd46d49d
Name changed from OBSD to OPENBSD_AUDIO
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103 extern AudioBootStrap OPENBSD_AUDIO_bootstrap; |
|
94
ae6e6b73333f
Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
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104 #endif |
| 0 | 105 #ifdef OSS_SUPPORT |
| 106 extern AudioBootStrap DSP_bootstrap; | |
| 107 extern AudioBootStrap DMA_bootstrap; | |
| 108 #endif | |
| 109 #ifdef ALSA_SUPPORT | |
| 110 extern AudioBootStrap ALSA_bootstrap; | |
| 111 #endif | |
|
148
8758b8d42cd9
Audio subsystem no longer assumes sun audio API on UNIX systems
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112 #ifdef SUNAUDIO_SUPPORT |
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8758b8d42cd9
Audio subsystem no longer assumes sun audio API on UNIX systems
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113 extern AudioBootStrap SUNAUDIO_bootstrap; |
|
8758b8d42cd9
Audio subsystem no longer assumes sun audio API on UNIX systems
Sam Lantinga <slouken@libsdl.org>
parents:
121
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changeset
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114 #endif |
|
8758b8d42cd9
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Sam Lantinga <slouken@libsdl.org>
parents:
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115 #ifdef DMEDIA_SUPPORT |
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8758b8d42cd9
Audio subsystem no longer assumes sun audio API on UNIX systems
Sam Lantinga <slouken@libsdl.org>
parents:
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116 extern AudioBootStrap DMEDIA_bootstrap; |
|
35
d3bc792e136d
Added detection of Open Sound System on Solaris x86
Sam Lantinga <slouken@lokigames.com>
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diff
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117 #endif |
| 0 | 118 #ifdef ARTSC_SUPPORT |
| 119 extern AudioBootStrap ARTSC_bootstrap; | |
| 120 #endif | |
| 121 #ifdef ESD_SUPPORT | |
| 122 extern AudioBootStrap ESD_bootstrap; | |
| 123 #endif | |
| 124 #ifdef NAS_SUPPORT | |
| 125 extern AudioBootStrap NAS_bootstrap; | |
| 126 #endif | |
| 127 #ifdef ENABLE_DIRECTX | |
| 128 extern AudioBootStrap DSOUND_bootstrap; | |
| 129 #endif | |
| 130 #ifdef ENABLE_WINDIB | |
| 131 extern AudioBootStrap WAVEOUT_bootstrap; | |
| 132 #endif | |
|
21
75a95f82bc1f
Updated the Amiga OS port of SDL (thanks Gabriele)
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133 #ifdef _AIX |
|
75a95f82bc1f
Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
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134 extern AudioBootStrap Paud_bootstrap; |
|
75a95f82bc1f
Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
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135 #endif |
| 0 | 136 #ifdef __BEOS__ |
| 137 extern AudioBootStrap BAUDIO_bootstrap; | |
| 138 #endif | |
| 139 #if defined(macintosh) || TARGET_API_MAC_CARBON | |
| 140 extern AudioBootStrap SNDMGR_bootstrap; | |
| 141 #endif | |
|
21
75a95f82bc1f
Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
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142 #ifdef ENABLE_AHI |
|
75a95f82bc1f
Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
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143 extern AudioBootStrap AHI_bootstrap; |
| 0 | 144 #endif |
|
68
ac6645260d31
Added an audio driver that writes to disk (thanks Ryan!)
Sam Lantinga <slouken@lokigames.com>
parents:
37
diff
changeset
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145 #ifdef DISKAUD_SUPPORT |
|
ac6645260d31
Added an audio driver that writes to disk (thanks Ryan!)
Sam Lantinga <slouken@lokigames.com>
parents:
37
diff
changeset
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146 extern AudioBootStrap DISKAUD_bootstrap; |
|
ac6645260d31
Added an audio driver that writes to disk (thanks Ryan!)
Sam Lantinga <slouken@lokigames.com>
parents:
37
diff
changeset
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147 #endif |
| 0 | 148 |
| 149 /* This is the current audio device */ | |
| 150 extern SDL_AudioDevice *current_audio; | |
| 151 | |
| 152 #endif /* _SDL_sysaudio_h */ |