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/*
* 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.
*/
/* Audio Core API (derived from OpenAL)
*/
#ifndef LIBS_SOUND_AUDIOCORE_H_
#define LIBS_SOUND_AUDIOCORE_H_
#include "config.h"
#include "types.h"
/* Available drivers */
enum
{
audio_DRIVER_MIXSDL,
audio_DRIVER_NOSOUND,
audio_DRIVER_OPENAL
};
/* Initialization flags */
#define audio_QUALITY_HIGH (1 << 0)
#define audio_QUALITY_MEDIUM (1 << 1)
#define audio_QUALITY_LOW (1 << 2)
/* Interface Types */
typedef uintptr_t audio_Object;
typedef intptr_t audio_IntVal;
typedef const sint32 audio_SourceProp;
typedef const sint32 audio_BufferProp;
enum
{
/* Errors */
audio_NO_ERROR = 0,
audio_INVALID_NAME,
audio_INVALID_ENUM,
audio_INVALID_VALUE,
audio_INVALID_OPERATION,
audio_OUT_OF_MEMORY,
audio_DRIVER_FAILURE,
/* Source properties */
audio_POSITION,
audio_LOOPING,
audio_BUFFER,
audio_GAIN,
audio_SOURCE_STATE,
audio_BUFFERS_QUEUED,
audio_BUFFERS_PROCESSED,
/* Source state information */
audio_INITIAL,
audio_STOPPED,
audio_PLAYING,
audio_PAUSED,
/* Sound buffer properties */
audio_FREQUENCY,
audio_BITS,
audio_CHANNELS,
audio_SIZE,
audio_FORMAT_MONO16,
audio_FORMAT_STEREO16,
audio_FORMAT_MONO8,
audio_FORMAT_STEREO8,
audio_ENUM_SIZE
};
extern int snddriver, soundflags;
typedef struct {
/* General */
void (* Uninitialize) (void);
sint32 (* GetError) (void);
sint32 driverID;
sint32 EnumLookup[audio_ENUM_SIZE];
/* Sources */
void (* GenSources) (uint32 n, audio_Object *psrcobj);
void (* DeleteSources) (uint32 n, audio_Object *psrcobj);
bool (* IsSource) (audio_Object srcobj);
void (* Sourcei) (audio_Object srcobj, audio_SourceProp pname,
audio_IntVal value);
void (* Sourcef) (audio_Object srcobj, audio_SourceProp pname,
float value);
void (* Sourcefv) (audio_Object srcobj, audio_SourceProp pname,
float *value);
void (* GetSourcei) (audio_Object srcobj, audio_SourceProp pname,
audio_IntVal *value);
void (* GetSourcef) (audio_Object srcobj, audio_SourceProp pname,
float *value);
void (* SourceRewind) (audio_Object srcobj);
void (* SourcePlay) (audio_Object srcobj);
void (* SourcePause) (audio_Object srcobj);
void (* SourceStop) (audio_Object srcobj);
void (* SourceQueueBuffers) (audio_Object srcobj, uint32 n,
audio_Object* pbufobj);
void (* SourceUnqueueBuffers) (audio_Object srcobj, uint32 n,
audio_Object* pbufobj);
/* Buffers */
void (* GenBuffers) (uint32 n, audio_Object *pbufobj);
void (* DeleteBuffers) (uint32 n, audio_Object *pbufobj);
bool (* IsBuffer) (audio_Object bufobj);
void (* GetBufferi) (audio_Object bufobj, audio_BufferProp pname,
audio_IntVal *value);
void (* BufferData) (audio_Object bufobj, uint32 format, void* data,
uint32 size, uint32 freq);
} audio_Driver;
/* Initialization */
sint32 initAudio (sint32 driver, sint32 flags);
void unInitAudio (void);
/* General */
sint32 audio_GetError (void);
/* Sources */
void audio_GenSources (uint32 n, audio_Object *psrcobj);
void audio_DeleteSources (uint32 n, audio_Object *psrcobj);
bool audio_IsSource (audio_Object srcobj);
void audio_Sourcei (audio_Object srcobj, audio_SourceProp pname,
audio_IntVal value);
void audio_Sourcef (audio_Object srcobj, audio_SourceProp pname,
float value);
void audio_Sourcefv (audio_Object srcobj, audio_SourceProp pname,
float *value);
void audio_GetSourcei (audio_Object srcobj, audio_SourceProp pname,
audio_IntVal *value);
void audio_GetSourcef (audio_Object srcobj, audio_SourceProp pname,
float *value);
void audio_SourceRewind (audio_Object srcobj);
void audio_SourcePlay (audio_Object srcobj);
void audio_SourcePause (audio_Object srcobj);
void audio_SourceStop (audio_Object srcobj);
void audio_SourceQueueBuffers (audio_Object srcobj, uint32 n,
audio_Object* pbufobj);
void audio_SourceUnqueueBuffers (audio_Object srcobj, uint32 n,
audio_Object* pbufobj);
/* Buffers */
void audio_GenBuffers (uint32 n, audio_Object *pbufobj);
void audio_DeleteBuffers (uint32 n, audio_Object *pbufobj);
bool audio_IsBuffer (audio_Object bufobj);
void audio_GetBufferi (audio_Object bufobj, audio_BufferProp pname,
audio_IntVal *value);
void audio_BufferData (audio_Object bufobj, uint32 format, void* data,
uint32 size, uint32 freq);
bool audio_GetFormatInfo (uint32 format, int *channels, int *sample_size);
#endif /* LIBS_SOUND_AUDIOCORE_H_ */
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