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1 #ifndef _AL_BUFFER_H_
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2 #define _AL_BUFFER_H_
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3
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4 #include "AL/al.h"
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5
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6 #ifdef __cplusplus
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7 extern "C" {
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8 #endif
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9
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10 /* User formats */
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11 enum UserFmtType {
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12 UserFmtByte = AL_BYTE,
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13 UserFmtUByte = AL_UNSIGNED_BYTE,
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14 UserFmtShort = AL_SHORT,
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15 UserFmtUShort = AL_UNSIGNED_SHORT,
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16 UserFmtInt = AL_INT,
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17 UserFmtUInt = AL_UNSIGNED_INT,
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18 UserFmtFloat = AL_FLOAT,
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19 UserFmtDouble = AL_DOUBLE,
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20 UserFmtMulaw = AL_MULAW,
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21 UserFmtIMA4 = AL_IMA4,
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22 UserFmtByte3 = AL_BYTE3,
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23 UserFmtUByte3 = AL_UNSIGNED_BYTE3,
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24 };
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25 enum UserFmtChannels {
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26 UserFmtMono = AL_MONO,
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27 UserFmtStereo = AL_STEREO,
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28 UserFmtRear = AL_REAR,
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29 UserFmtQuad = AL_QUAD,
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30 UserFmtX51 = AL_5POINT1, /* (WFX order) */
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31 UserFmtX61 = AL_6POINT1, /* (WFX order) */
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32 UserFmtX71 = AL_7POINT1 /* (WFX order) */
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33 };
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34
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35 ALboolean DecomposeUserFormat(ALenum format, enum UserFmtChannels *chans,
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36 enum UserFmtType *type);
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37 ALuint BytesFromUserFmt(enum UserFmtType type);
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38 ALuint ChannelsFromUserFmt(enum UserFmtChannels chans);
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39 static __inline ALuint FrameSizeFromUserFmt(enum UserFmtChannels chans,
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40 enum UserFmtType type)
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41 {
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42 return ChannelsFromUserFmt(chans) * BytesFromUserFmt(type);
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43 }
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44
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45
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46 /* Storable formats */
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47 enum FmtType {
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48 FmtByte = UserFmtByte,
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49 FmtShort = UserFmtShort,
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50 FmtFloat = UserFmtFloat,
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51 };
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52 enum FmtChannels {
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53 FmtMono = UserFmtMono,
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54 FmtStereo = UserFmtStereo,
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55 FmtRear = UserFmtRear,
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56 FmtQuad = UserFmtQuad,
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57 FmtX51 = UserFmtX51,
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58 FmtX61 = UserFmtX61,
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59 FmtX71 = UserFmtX71,
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60 };
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61
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62 ALboolean DecomposeFormat(ALenum format, enum FmtChannels *chans, enum FmtType *type);
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63 ALuint BytesFromFmt(enum FmtType type);
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64 ALuint ChannelsFromFmt(enum FmtChannels chans);
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65 static __inline ALuint FrameSizeFromFmt(enum FmtChannels chans, enum FmtType type)
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66 {
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67 return ChannelsFromFmt(chans) * BytesFromFmt(type);
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68 }
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69
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70
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71 typedef struct ALbuffer
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72 {
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73 ALvoid *data;
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74 ALsizei size;
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75
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76 ALsizei Frequency;
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77 enum FmtChannels FmtChannels;
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78 enum FmtType FmtType;
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79
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80 enum UserFmtChannels OriginalChannels;
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81 enum UserFmtType OriginalType;
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82 ALsizei OriginalSize;
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83 ALsizei OriginalAlign;
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84
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85 ALsizei LoopStart;
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86 ALsizei LoopEnd;
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87
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88 ALuint refcount; // Number of sources using this buffer (deletion can only occur when this is 0)
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89
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90 // Index to itself
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91 ALuint buffer;
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92 } ALbuffer;
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93
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94 ALvoid ReleaseALBuffers(ALCdevice *device);
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95
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96 #ifdef __cplusplus
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97 }
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98 #endif
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99
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100 #endif
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