OpenAL32/Include/alSource.h

   1 #ifndef _AL_SOURCE_H_
   2 #define _AL_SOURCE_H_
   3
   4 #define AL_NUM_SOURCE_PARAMS    128
   5
   6 #define MAX_SENDS                 2
   7
   8 #include "alFilter.h"
   9 #include "alu.h"
  10 #include "AL/al.h"
  11
  12 #define AL_DIRECT_FILTER                                   0x20005
  13 #define AL_AUXILIARY_SEND_FILTER                           0x20006
  14 #define AL_AIR_ABSORPTION_FACTOR                           0x20007
  15 #define AL_ROOM_ROLLOFF_FACTOR                             0x20008
  16 #define AL_CONE_OUTER_GAINHF                               0x20009
  17 #define AL_DIRECT_FILTER_GAINHF_AUTO                       0x2000A
  18 #define AL_AUXILIARY_SEND_FILTER_GAIN_AUTO                 0x2000B
  19 #define AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO               0x2000C
  20
  21 #ifdef __cplusplus
  22 extern "C" {
  23 #endif
  24
  25 typedef struct ALbufferlistitem
  26 {
  27     struct ALbuffer         *buffer;
  28     ALuint                   bufferstate;
  29     ALuint                   flag;
  30     struct ALbufferlistitem *next;
  31 } ALbufferlistitem;
  32
  33 typedef struct ALsource
  34 {
  35     ALfloat      flPitch;
  36     ALfloat      flGain;
  37     ALfloat      flOuterGain;
  38     ALfloat      flMinGain;
  39     ALfloat      flMaxGain;
  40     ALfloat      flInnerAngle;
  41     ALfloat      flOuterAngle;
  42     ALfloat      flRefDistance;
  43     ALfloat      flMaxDistance;
  44     ALfloat      flRollOffFactor;
  45     ALfloat      vPosition[3];
  46     ALfloat      vVelocity[3];
  47     ALfloat      vOrientation[3];
  48     ALboolean    bHeadRelative;
  49     ALboolean    bLooping;
  50     ALenum       DistanceModel;
  51
  52     ALenum       state;
  53     ALuint       position;
  54     ALuint       position_fraction;
  55
  56     struct ALbuffer *Buffer;
  57
  58     struct ALbufferlistitem *queue; // Linked list of buffers in queue
  59     ALuint       BuffersInQueue;    // Number of buffers in queue
  60     ALuint       BuffersPlayed;     // Number of buffers played on this loop
  61
  62     ALfilter DirectFilter;
  63
  64     struct {
  65         struct ALeffectslot *Slot;
  66         ALfilter WetFilter;
  67     } Send[MAX_SENDS];
  68
  69     ALboolean DryGainHFAuto;
  70     ALboolean WetGainAuto;
  71     ALboolean WetGainHFAuto;
  72     ALfloat   OuterGainHF;
  73
  74     ALfloat AirAbsorptionFactor;
  75     ALfloat RoomRolloffFactor;
  76     ALfloat DopplerFactor;
  77
  78     ALint  lOffset;
  79     ALint  lOffsetType;
  80
  81     // Source Type (Static, Streaming, or Undetermined)
  82     ALint  lSourceType;
  83
  84     // Current gains, which are ramped while mixed
  85     ALfloat DryGains[OUTPUTCHANNELS];
  86     ALfloat WetGains[MAX_SENDS];
  87     ALboolean FirstStart;
  88
  89     // Current target parameters used for mixing
  90     struct {
  91         ALfloat DryGains[OUTPUTCHANNELS];
  92         ALfloat WetGains[MAX_SENDS];
  93         ALfloat Pitch;
  94
  95         struct {
  96             FILTER iirFilter;
  97             ALfloat history[2];
  98         } Send[MAX_SENDS];
  99
 100         FILTER iirFilter;
 101         ALfloat history[OUTPUTCHANNELS*2];
 102     } Params;
 103
 104     // Index to itself
 105     ALuint source;
 106
 107     struct ALsource *next;
 108 } ALsource;
 109
 110 ALvoid ReleaseALSources(ALCcontext *Context);
 111
 112 #ifdef __cplusplus
 113 }
 114 #endif
 115
 116 #endif