raze-gles/polymer/eduke32/source/jaudiolib/src/drivers.c

155 lines
3.6 KiB
C

/*
Copyright (C) 2009 Jonathon Fowler <jf@jonof.id.au>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/**
* Abstraction layer for hiding the various supported sound devices
* behind a common and opaque interface called on by MultiVoc.
*/
#include "drivers.h"
#include "driver_nosound.h"
#ifdef HAVE_SDL
# include "driver_sdl.h"
#endif
#ifdef WIN32
# include "driver_directsound.h"
#endif
int32_t ASS_SoundDriver = -1;
#define UNSUPPORTED { 0,0,0,0,0,0,0,0, },
static struct {
int32_t (* GetError)(void);
const char * (* ErrorString)(int32_t);
int32_t (* Init)(int32_t *, int32_t *, int32_t *, void *);
void (* Shutdown)(void);
int32_t (* BeginPlayback)(char *, int32_t, int32_t, void ( * )(void) );
void (* StopPlayback)(void);
void (* Lock)(void);
void (* Unlock)(void);
} SoundDrivers[ASS_NumSoundCards] = {
// Everyone gets the "no sound" driver
{
NoSoundDrv_GetError,
NoSoundDrv_ErrorString,
NoSoundDrv_PCM_Init,
NoSoundDrv_PCM_Shutdown,
NoSoundDrv_PCM_BeginPlayback,
NoSoundDrv_PCM_StopPlayback,
NoSoundDrv_PCM_Lock,
NoSoundDrv_PCM_Unlock,
},
// Simple DirectMedia Layer
#ifdef HAVE_SDL
{
SDLDrv_GetError,
SDLDrv_ErrorString,
SDLDrv_PCM_Init,
SDLDrv_PCM_Shutdown,
SDLDrv_PCM_BeginPlayback,
SDLDrv_PCM_StopPlayback,
SDLDrv_PCM_Lock,
SDLDrv_PCM_Unlock,
},
#else
UNSUPPORTED
#endif
// Windows DirectSound
#ifdef WIN32
{
DirectSoundDrv_GetError,
DirectSoundDrv_ErrorString,
DirectSoundDrv_PCM_Init,
DirectSoundDrv_PCM_Shutdown,
DirectSoundDrv_PCM_BeginPlayback,
DirectSoundDrv_PCM_StopPlayback,
DirectSoundDrv_PCM_Lock,
DirectSoundDrv_PCM_Unlock,
},
#else
UNSUPPORTED
#endif
};
int32_t SoundDriver_IsSupported(int32_t driver)
{
return (SoundDrivers[driver].GetError != 0);
}
int32_t SoundDriver_GetError(void)
{
if (!SoundDriver_IsSupported(ASS_SoundDriver)) {
return -1;
}
return SoundDrivers[ASS_SoundDriver].GetError();
}
const char * SoundDriver_ErrorString( int32_t ErrorNumber )
{
if (ASS_SoundDriver < 0 || ASS_SoundDriver >= ASS_NumSoundCards) {
return "No sound driver selected.";
}
if (!SoundDriver_IsSupported(ASS_SoundDriver)) {
return "Unsupported sound driver selected.";
}
return SoundDrivers[ASS_SoundDriver].ErrorString(ErrorNumber);
}
int32_t SoundDriver_Init(int32_t *mixrate, int32_t *numchannels, int32_t *samplebits, void * initdata)
{
return SoundDrivers[ASS_SoundDriver].Init(mixrate, numchannels, samplebits, initdata);
}
void SoundDriver_Shutdown(void)
{
SoundDrivers[ASS_SoundDriver].Shutdown();
}
int32_t SoundDriver_BeginPlayback(char *BufferStart, int32_t BufferSize,
int32_t NumDivisions, void ( *CallBackFunc )( void ) )
{
return SoundDrivers[ASS_SoundDriver].BeginPlayback(BufferStart,
BufferSize, NumDivisions, CallBackFunc);
}
void SoundDriver_StopPlayback(void)
{
SoundDrivers[ASS_SoundDriver].StopPlayback();
}
void SoundDriver_Lock(void)
{
SoundDrivers[ASS_SoundDriver].Lock();
}
void SoundDriver_Unlock(void)
{
SoundDrivers[ASS_SoundDriver].Unlock();
}