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#ifndef _AL_BUFFER_H_
#define _AL_BUFFER_H_
#include "alMain.h"
#ifdef __cplusplus
extern "C" {
#endif
/* User formats */
enum UserFmtType {
UserFmtUByte,
UserFmtShort,
UserFmtFloat,
UserFmtDouble,
UserFmtMulaw,
UserFmtAlaw,
UserFmtIMA4,
UserFmtMSADPCM,
};
enum UserFmtChannels {
UserFmtMono,
UserFmtStereo,
UserFmtRear,
UserFmtQuad,
UserFmtX51, /* (WFX order) */
UserFmtX61, /* (WFX order) */
UserFmtX71, /* (WFX order) */
UserFmtBFormat2D, /* WXY */
UserFmtBFormat3D, /* WXYZ */
};
ALsizei BytesFromUserFmt(enum UserFmtType type);
ALsizei ChannelsFromUserFmt(enum UserFmtChannels chans);
inline ALsizei FrameSizeFromUserFmt(enum UserFmtChannels chans, enum UserFmtType type)
{
return ChannelsFromUserFmt(chans) * BytesFromUserFmt(type);
}
/* Storable formats */
enum FmtType {
FmtUByte = UserFmtUByte,
FmtShort = UserFmtShort,
FmtFloat = UserFmtFloat,
FmtDouble = UserFmtDouble,
FmtMulaw = UserFmtMulaw,
FmtAlaw = UserFmtAlaw,
};
enum FmtChannels {
FmtMono = UserFmtMono,
FmtStereo = UserFmtStereo,
FmtRear = UserFmtRear,
FmtQuad = UserFmtQuad,
FmtX51 = UserFmtX51,
FmtX61 = UserFmtX61,
FmtX71 = UserFmtX71,
FmtBFormat2D = UserFmtBFormat2D,
FmtBFormat3D = UserFmtBFormat3D,
};
#define MAX_INPUT_CHANNELS (8)
ALsizei BytesFromFmt(enum FmtType type);
ALsizei ChannelsFromFmt(enum FmtChannels chans);
inline ALsizei FrameSizeFromFmt(enum FmtChannels chans, enum FmtType type)
{
return ChannelsFromFmt(chans) * BytesFromFmt(type);
}
typedef struct ALbuffer {
ALvoid *data;
ALsizei Frequency;
ALbitfieldSOFT Access;
ALsizei SampleLen;
enum FmtChannels FmtChannels;
enum FmtType FmtType;
ALsizei BytesAlloc;
enum UserFmtType OriginalType;
ALsizei OriginalSize;
ALsizei OriginalAlign;
ALsizei LoopStart;
ALsizei LoopEnd;
ATOMIC(ALsizei) UnpackAlign;
ATOMIC(ALsizei) PackAlign;
ALbitfieldSOFT MappedAccess;
/* Number of times buffer was attached to a source (deletion can only occur when 0) */
RefCount ref;
RWLock lock;
/* Self ID */
ALuint id;
} ALbuffer;
ALbuffer *NewBuffer(ALCcontext *context);
void DeleteBuffer(ALCdevice *device, ALbuffer *buffer);
inline void LockBuffersRead(ALCdevice *device)
{ LockUIntMapRead(&device->BufferMap); }
inline void UnlockBuffersRead(ALCdevice *device)
{ UnlockUIntMapRead(&device->BufferMap); }
inline void LockBuffersWrite(ALCdevice *device)
{ LockUIntMapWrite(&device->BufferMap); }
inline void UnlockBuffersWrite(ALCdevice *device)
{ UnlockUIntMapWrite(&device->BufferMap); }
inline struct ALbuffer *LookupBuffer(ALCdevice *device, ALuint id)
{ return (struct ALbuffer*)LookupUIntMapKeyNoLock(&device->BufferMap, id); }
inline struct ALbuffer *RemoveBuffer(ALCdevice *device, ALuint id)
{ return (struct ALbuffer*)RemoveUIntMapKeyNoLock(&device->BufferMap, id); }
ALvoid ReleaseALBuffers(ALCdevice *device);
#ifdef __cplusplus
}
#endif
#endif
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