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#ifndef _AL_BUFFER_H_
#define _AL_BUFFER_H_
#include "AL/al.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Input formats (some are currently theoretical) */
enum SrcFmtType {
SrcFmtByte, /* AL_BYTE */
SrcFmtUByte, /* AL_UNSIGNED_BYTE */
SrcFmtShort, /* AL_SHORT */
SrcFmtUShort, /* AL_UNSIGNED_SHORT */
SrcFmtInt, /* AL_INT */
SrcFmtUInt, /* AL_UNSIGNED_INT */
SrcFmtFloat, /* AL_FLOAT */
SrcFmtDouble, /* AL_DOUBLE */
SrcFmtMulaw, /* AL_MULAW */
SrcFmtIMA4, /* AL_IMA4 */
};
enum SrcFmtChannels {
SrcFmtMono, /* AL_MONO */
SrcFmtStereo, /* AL_STEREO */
SrcFmtRear, /* AL_REAR */
SrcFmtQuad, /* AL_QUAD */
SrcFmtX51, /* AL_5POINT1 (WFX order) */
SrcFmtX61, /* AL_6POINT1 (WFX order) */
SrcFmtX71, /* AL_7POINT1 (WFX order) */
};
void DecomposeInputFormat(ALenum format, enum SrcFmtChannels *chans,
enum SrcFmtType *type);
ALuint BytesFromSrcFmt(enum SrcFmtType type);
ALuint ChannelsFromSrcFmt(enum SrcFmtChannels chans);
static __inline ALuint FrameSizeFromSrcFmt(enum SrcFmtChannels chans,
enum SrcFmtType type)
{
return ChannelsFromSrcFmt(chans) * BytesFromSrcFmt(type);
}
/* Storable formats */
enum FmtType {
FmtUByte,
FmtShort,
FmtFloat,
};
enum FmtChannels {
FmtMono,
FmtStereo,
FmtRear,
FmtQuad,
FmtX51,
FmtX61,
FmtX71,
};
void DecomposeFormat(ALenum format, enum FmtChannels *chans, enum FmtType *type);
ALuint BytesFromFmt(enum FmtType type);
ALuint ChannelsFromFmt(enum FmtChannels chans);
static __inline ALuint FrameSizeFromFmt(enum FmtChannels chans, enum FmtType type)
{
return ChannelsFromFmt(chans) * BytesFromFmt(type);
}
typedef struct ALbuffer
{
ALvoid *data;
ALsizei size;
ALsizei Frequency;
enum FmtChannels FmtChannels;
enum FmtType FmtType;
enum SrcFmtChannels OriginalChannels;
enum SrcFmtType OriginalType;
ALsizei OriginalSize;
ALsizei OriginalAlign;
ALsizei LoopStart;
ALsizei LoopEnd;
ALuint refcount; // Number of sources using this buffer (deletion can only occur when this is 0)
// Index to itself
ALuint buffer;
} ALbuffer;
ALvoid ReleaseALBuffers(ALCdevice *device);
#ifdef __cplusplus
}
#endif
#endif
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