| 0,0 → 1,150 |
|---|
| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with this library; if not, write to the Free |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| |
| Sam Lantinga |
| slouken@devolution.com |
| */ |
| |
| #ifdef SAVE_RCSID |
| static char rcsid = |
| "@(#) $Id: SDL_sysaudio.h,v 1.8 2001/07/23 02:58:42 slouken Exp $"; |
| #endif |
| |
| #ifndef _SDL_sysaudio_h |
| #define _SDL_sysaudio_h |
| |
| #include "SDL_mutex.h" |
| #include "SDL_thread.h" |
| |
| /* The SDL audio driver */ |
| typedef struct SDL_AudioDevice SDL_AudioDevice; |
| |
| /* Define the SDL audio driver structure */ |
| #define _THIS SDL_AudioDevice *_this |
| #ifndef _STATUS |
| #define _STATUS SDL_status *status |
| #endif |
| struct SDL_AudioDevice { |
| /* * * */ |
| /* The name of this audio driver */ |
| const char *name; |
| |
| /* * * */ |
| /* The description of this audio driver */ |
| const char *desc; |
| |
| /* * * */ |
| /* Public driver functions */ |
| int (*OpenAudio)(_THIS, SDL_AudioSpec *spec); |
| void (*ThreadInit)(_THIS); /* Called by audio thread at start */ |
| void (*WaitAudio)(_THIS); |
| void (*PlayAudio)(_THIS); |
| Uint8 *(*GetAudioBuf)(_THIS); |
| void (*WaitDone)(_THIS); |
| void (*CloseAudio)(_THIS); |
| |
| /* * * */ |
| /* Data common to all devices */ |
| |
| /* The current audio specification (shared with audio thread) */ |
| SDL_AudioSpec spec; |
| |
| /* An audio conversion block for audio format emulation */ |
| SDL_AudioCVT convert; |
| |
| /* Current state flags */ |
| int enabled; |
| int paused; |
| int opened; |
| |
| /* Fake audio buffer for when the audio hardware is busy */ |
| Uint8 *fake_stream; |
| |
| /* A semaphore for locking the mixing buffers */ |
| SDL_mutex *mixer_lock; |
| |
| /* A thread to feed the audio device */ |
| SDL_Thread *thread; |
| Uint32 threadid; |
| |
| /* * * */ |
| /* Data private to this driver */ |
| struct SDL_PrivateAudioData *hidden; |
| |
| /* * * */ |
| /* The function used to dispose of this structure */ |
| void (*free)(_THIS); |
| }; |
| #undef _THIS |
| |
| typedef struct AudioBootStrap { |
| const char *name; |
| const char *desc; |
| int (*available)(void); |
| SDL_AudioDevice *(*create)(int devindex); |
| } AudioBootStrap; |
| |
| #ifdef OPENBSD_AUDIO_SUPPORT |
| extern AudioBootStrap OPENBSD_AUDIO_bootstrap; |
| #endif |
| #ifdef OSS_SUPPORT |
| extern AudioBootStrap DSP_bootstrap; |
| extern AudioBootStrap DMA_bootstrap; |
| #endif |
| #ifdef ALSA_SUPPORT |
| extern AudioBootStrap ALSA_bootstrap; |
| #endif |
| #if (defined(unix) && !defined(__CYGWIN32__)) && \ |
| !defined(OSS_SUPPORT) && !defined(ALSA_SUPPORT) |
| extern AudioBootStrap AUDIO_bootstrap; |
| #endif |
| #ifdef ARTSC_SUPPORT |
| extern AudioBootStrap ARTSC_bootstrap; |
| #endif |
| #ifdef ESD_SUPPORT |
| extern AudioBootStrap ESD_bootstrap; |
| #endif |
| #ifdef NAS_SUPPORT |
| extern AudioBootStrap NAS_bootstrap; |
| #endif |
| #ifdef ENABLE_DIRECTX |
| extern AudioBootStrap DSOUND_bootstrap; |
| #endif |
| #ifdef ENABLE_WINDIB |
| extern AudioBootStrap WAVEOUT_bootstrap; |
| #endif |
| #ifdef _AIX |
| extern AudioBootStrap Paud_bootstrap; |
| #endif |
| #ifdef __BEOS__ |
| extern AudioBootStrap BAUDIO_bootstrap; |
| #endif |
| #if defined(macintosh) || TARGET_API_MAC_CARBON |
| extern AudioBootStrap SNDMGR_bootstrap; |
| #endif |
| #ifdef ENABLE_AHI |
| extern AudioBootStrap AHI_bootstrap; |
| #endif |
| #ifdef DISKAUD_SUPPORT |
| extern AudioBootStrap DISKAUD_bootstrap; |
| #endif |
| |
| /* This is the current audio device */ |
| extern SDL_AudioDevice *current_audio; |
| |
| #endif /* _SDL_sysaudio_h */ |