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