/*

SDL - Simple DirectMedia Layer

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

*/

#ifdef SAVE_RCSID

static char rcsid =

"@(#) $Id$";

#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;

#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;

#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;

#ifdef DISKAUD_SUPPORT

extern AudioBootStrap DISKAUD_bootstrap;

#endif

/* This is the current audio device */

extern SDL_AudioDevice *current_audio;

#endif /* _SDL_sysaudio_h */