SDL_sysaudio.h
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:4k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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@libsdl.org
- */
- #ifdef SAVE_RCSID
- static char rcsid =
- "@(#) $Id: SDL_sysaudio.h,v 1.4 2002/04/22 21:38:02 wmay 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);
- int (*AudioDelayMsec)(_THIS);
- /* * * */
- /* Lock / Unlock functions added for the Mac port */
- void (*LockAudio)(_THIS);
- void (*UnlockAudio)(_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
- #ifdef SUNAUDIO_SUPPORT
- extern AudioBootStrap SUNAUDIO_bootstrap;
- #endif
- #ifdef DMEDIA_SUPPORT
- extern AudioBootStrap DMEDIA_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 */