al/source.h

   1 #ifndef AL_SOURCE_H
   2 #define AL_SOURCE_H
   3
   4 #include <array>
   5 #include <atomic>
   6 #include <cstddef>
   7 #include <iterator>
   8
   9 #include "AL/al.h"
  10 #include "AL/alc.h"
  11
  12 #include "alcontext.h"
  13 #include "almalloc.h"
  14 #include "alnumeric.h"
  15 #include "alu.h"
  16 #include "vector.h"
  17
  18 struct ALbuffer;
  19 struct ALeffectslot;
  20
  21
  22 #define DEFAULT_SENDS  2
  23
  24 #define INVALID_VOICE_IDX static_cast<ALuint>(-1)
  25
  26 struct ALbufferlistitem {
  27     std::atomic<ALbufferlistitem*> mNext{nullptr};
  28     ALuint mSampleLen{0u};
  29     ALbuffer *mBuffer{nullptr};
  30
  31     DEF_NEWDEL(ALbufferlistitem)
  32 };
  33
  34
  35 struct ALsource {
  36     /** Source properties. */
  37     ALfloat   Pitch;
  38     ALfloat   Gain;
  39     ALfloat   OuterGain;
  40     ALfloat   MinGain;
  41     ALfloat   MaxGain;
  42     ALfloat   InnerAngle;
  43     ALfloat   OuterAngle;
  44     ALfloat   RefDistance;
  45     ALfloat   MaxDistance;
  46     ALfloat   RolloffFactor;
  47     std::array<ALfloat,3> Position;
  48     std::array<ALfloat,3> Velocity;
  49     std::array<ALfloat,3> Direction;
  50     std::array<ALfloat,3> OrientAt;
  51     std::array<ALfloat,3> OrientUp;
  52     bool HeadRelative;
  53     bool Looping;
  54     DistanceModel mDistanceModel;
  55     Resampler mResampler;
  56     bool DirectChannels;
  57     SpatializeMode mSpatialize;
  58
  59     bool DryGainHFAuto;
  60     bool WetGainAuto;
  61     bool WetGainHFAuto;
  62     ALfloat OuterGainHF;
  63
  64     ALfloat AirAbsorptionFactor;
  65     ALfloat RoomRolloffFactor;
  66     ALfloat DopplerFactor;
  67
  68     /* NOTE: Stereo pan angles are specified in radians, counter-clockwise
  69      * rather than clockwise.
  70      */
  71     std::array<ALfloat,2> StereoPan;
  72
  73     ALfloat Radius;
  74
  75     /** Direct filter and auxiliary send info. */
  76     struct {
  77         ALfloat Gain;
  78         ALfloat GainHF;
  79         ALfloat HFReference;
  80         ALfloat GainLF;
  81         ALfloat LFReference;
  82     } Direct;
  83     struct SendData {
  84         ALeffectslot *Slot;
  85         ALfloat Gain;
  86         ALfloat GainHF;
  87         ALfloat HFReference;
  88         ALfloat GainLF;
  89         ALfloat LFReference;
  90     };
  91     al::vector<SendData> Send;
  92
  93     /**
  94      * Last user-specified offset, and the offset type (bytes, samples, or
  95      * seconds).
  96      */
  97     ALdouble Offset{0.0};
  98     ALenum   OffsetType{AL_NONE};
  99
 100     /** Source type (static, streaming, or undetermined) */
 101     ALenum SourceType{AL_UNDETERMINED};
 102
 103     /** Source state (initial, playing, paused, or stopped) */
 104     ALenum state{AL_INITIAL};
 105
 106     /** Source Buffer Queue head. */
 107     ALbufferlistitem *queue{nullptr};
 108
 109     std::atomic_flag PropsClean;
 110
 111     /* Index into the context's Voices array. Lazily updated, only checked and
 112      * reset when looking up the voice.
 113      */
 114     ALuint VoiceIdx{INVALID_VOICE_IDX};
 115
 116     /** Self ID */
 117     ALuint id{0};
 118
 119
 120     ALsource(ALuint num_sends);
 121     ~ALsource();
 122
 123     ALsource(const ALsource&) = delete;
 124     ALsource& operator=(const ALsource&) = delete;
 125 };
 126
 127 void UpdateAllSourceProps(ALCcontext *context);
 128
 129 #endif