151 lines
3.7 KiB
C
151 lines
3.7 KiB
C
|
/*
|
||
|
|
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 */
|