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     struct ALbufferlistitem *next;
  29 } ALbufferlistitem;
  30
  31 typedef struct ALsource
  32 {
  33     ALfloat      flPitch;
  34     ALfloat      flGain;
  35     ALfloat      flOuterGain;
  36     ALfloat      flMinGain;
  37     ALfloat      flMaxGain;
  38     ALfloat      flInnerAngle;
  39     ALfloat      flOuterAngle;
  40     ALfloat      flRefDistance;
  41     ALfloat      flMaxDistance;
  42     ALfloat      flRollOffFactor;
  43     ALfloat      vPosition[3];
  44     ALfloat      vVelocity[3];
  45     ALfloat      vOrientation[3];
  46     ALboolean    bHeadRelative;
  47     ALboolean    bLooping;
  48     ALenum       DistanceModel;
  49
  50     ALenum       state;
  51     ALuint       position;
  52     ALuint       position_fraction;
  53
  54     struct ALbuffer *Buffer;
  55
  56     struct ALbufferlistitem *queue; // Linked list of buffers in queue
  57     ALuint       BuffersInQueue;    // Number of buffers in queue
  58     ALuint       BuffersPlayed;     // Number of buffers played on this loop
  59
  60     ALfilter DirectFilter;
  61
  62     struct {
  63         struct ALeffectslot *Slot;
  64         ALfilter WetFilter;
  65     } Send[MAX_SENDS];
  66
  67     ALboolean DryGainHFAuto;
  68     ALboolean WetGainAuto;
  69     ALboolean WetGainHFAuto;
  70     ALfloat   OuterGainHF;
  71
  72     ALfloat AirAbsorptionFactor;
  73     ALfloat RoomRolloffFactor;
  74     ALfloat DopplerFactor;
  75
  76     ALint  lOffset;
  77     ALint  lOffsetType;
  78
  79     // Source Type (Static, Streaming, or Undetermined)
  80     ALint  lSourceType;
  81
  82     // Current gains, which are ramped while mixed
  83     ALfloat DryGains[OUTPUTCHANNELS];
  84     ALfloat WetGains[MAX_SENDS];
  85     ALboolean FirstStart;
  86
  87     // Current target parameters used for mixing
  88     struct {
  89         ALfloat DryGains[OUTPUTCHANNELS];
  90         ALfloat WetGains[MAX_SENDS];
  91         ALfloat Pitch;
  92
  93         struct {
  94             FILTER iirFilter;
  95             ALfloat history[2];
  96         } Send[MAX_SENDS];
  97
  98         FILTER iirFilter;
  99         ALfloat history[OUTPUTCHANNELS*2];
 100     } Params;
 101
 102     // Index to itself
 103     ALuint source;
 104
 105     struct ALsource *next;
 106 } ALsource;
 107
 108 ALvoid ReleaseALSources(ALCcontext *Context);
 109
 110 #ifdef __cplusplus
 111 }
 112 #endif
 113
 114 #endif