al/buffer.h

   1 #ifndef AL_BUFFER_H
   2 #define AL_BUFFER_H
   3
   4 #include <atomic>
   5
   6 #include "AL/al.h"
   7
   8 #include "albyte.h"
   9 #include "almalloc.h"
  10 #include "atomic.h"
  11 #include "inprogext.h"
  12 #include "vector.h"
  13
  14
  15 /* User formats */
  16 enum UserFmtType : unsigned char {
  17     UserFmtUByte,
  18     UserFmtShort,
  19     UserFmtFloat,
  20     UserFmtDouble,
  21     UserFmtMulaw,
  22     UserFmtAlaw,
  23     UserFmtIMA4,
  24     UserFmtMSADPCM,
  25 };
  26 enum UserFmtChannels : unsigned char {
  27     UserFmtMono,
  28     UserFmtStereo,
  29     UserFmtRear,
  30     UserFmtQuad,
  31     UserFmtX51, /* (WFX order) */
  32     UserFmtX61, /* (WFX order) */
  33     UserFmtX71, /* (WFX order) */
  34     UserFmtBFormat2D, /* WXY */
  35     UserFmtBFormat3D, /* WXYZ */
  36 };
  37
  38
  39 /* Storable formats */
  40 enum FmtType : unsigned char {
  41     FmtUByte  = UserFmtUByte,
  42     FmtShort  = UserFmtShort,
  43     FmtFloat  = UserFmtFloat,
  44     FmtDouble = UserFmtDouble,
  45     FmtMulaw  = UserFmtMulaw,
  46     FmtAlaw   = UserFmtAlaw,
  47 };
  48 enum FmtChannels : unsigned char {
  49     FmtMono   = UserFmtMono,
  50     FmtStereo = UserFmtStereo,
  51     FmtRear   = UserFmtRear,
  52     FmtQuad   = UserFmtQuad,
  53     FmtX51    = UserFmtX51,
  54     FmtX61    = UserFmtX61,
  55     FmtX71    = UserFmtX71,
  56     FmtBFormat2D = UserFmtBFormat2D,
  57     FmtBFormat3D = UserFmtBFormat3D,
  58 };
  59 #define MAX_INPUT_CHANNELS  (8)
  60
  61
  62 ALuint BytesFromFmt(FmtType type);
  63 ALuint ChannelsFromFmt(FmtChannels chans);
  64 inline ALuint FrameSizeFromFmt(FmtChannels chans, FmtType type)
  65 { return ChannelsFromFmt(chans) * BytesFromFmt(type); }
  66
  67
  68 struct ALbuffer {
  69     al::vector<al::byte,16> mData;
  70
  71     ALuint Frequency{0u};
  72     ALbitfieldSOFT Access{0u};
  73     ALuint SampleLen{0u};
  74
  75     FmtChannels mFmtChannels{};
  76     FmtType     mFmtType{};
  77
  78     UserFmtType OriginalType{};
  79     ALuint OriginalSize{0};
  80     ALuint OriginalAlign{0};
  81
  82     ALenum AmbiLayout{AL_FUMA_SOFT};
  83     ALenum AmbiScaling{AL_FUMA_SOFT};
  84
  85     ALuint LoopStart{0u};
  86     ALuint LoopEnd{0u};
  87
  88     ALuint UnpackAlign{0};
  89     ALuint PackAlign{0};
  90
  91     ALbitfieldSOFT MappedAccess{0u};
  92     ALsizei MappedOffset{0};
  93     ALsizei MappedSize{0};
  94
  95     /* Number of times buffer was attached to a source (deletion can only occur when 0) */
  96     RefCount ref{0u};
  97
  98     /* Self ID */
  99     ALuint id{0};
 100 };
 101
 102 #endif