rlm@0: #ifndef _AL_SOURCE_H_
rlm@0: #define _AL_SOURCE_H_
rlm@0: 
rlm@0: #define MAX_SENDS                 4
rlm@0: 
rlm@0: #include "alFilter.h"
rlm@0: #include "alu.h"
rlm@0: #include "AL/al.h"
rlm@0: 
rlm@0: #ifdef __cplusplus
rlm@0: extern "C" {
rlm@0: #endif
rlm@0: 
rlm@0: #define SRC_HISTORY_BITS   (6)
rlm@0: #define SRC_HISTORY_LENGTH (1<<SRC_HISTORY_BITS)
rlm@0: #define SRC_HISTORY_MASK   (SRC_HISTORY_LENGTH-1)
rlm@0: 
rlm@0: extern enum Resampler DefaultResampler;
rlm@0: 
rlm@0: extern const ALsizei ResamplerPadding[RESAMPLER_MAX];
rlm@0: extern const ALsizei ResamplerPrePadding[RESAMPLER_MAX];
rlm@0: 
rlm@0: 
rlm@0: typedef struct ALbufferlistitem
rlm@0: {
rlm@0:     struct ALbuffer         *buffer;
rlm@0:     struct ALbufferlistitem *next;
rlm@0:     struct ALbufferlistitem *prev;
rlm@0: } ALbufferlistitem;
rlm@0: 
rlm@0: typedef struct ALsource
rlm@0: {
rlm@0:     ALfloat      flPitch;
rlm@0:     ALfloat      flGain;
rlm@0:     ALfloat      flOuterGain;
rlm@0:     ALfloat      flMinGain;
rlm@0:     ALfloat      flMaxGain;
rlm@0:     ALfloat      flInnerAngle;
rlm@0:     ALfloat      flOuterAngle;
rlm@0:     ALfloat      flRefDistance;
rlm@0:     ALfloat      flMaxDistance;
rlm@0:     ALfloat      flRollOffFactor;
rlm@0:     ALfloat      vPosition[3];
rlm@0:     ALfloat      vVelocity[3];
rlm@0:     ALfloat      vOrientation[3];
rlm@0:     ALboolean    bHeadRelative;
rlm@0:     ALboolean    bLooping;
rlm@0:     enum DistanceModel DistanceModel;
rlm@0:     ALboolean    VirtualChannels;
rlm@0: 
rlm@0:     enum Resampler Resampler;
rlm@0: 
rlm@0:     ALenum       state;
rlm@0:     ALenum       new_state;
rlm@0:     ALuint       position;
rlm@0:     ALuint       position_fraction;
rlm@0: 
rlm@0:     struct ALbuffer *Buffer;
rlm@0: 
rlm@0:     ALbufferlistitem *queue; // Linked list of buffers in queue
rlm@0:     ALuint BuffersInQueue;   // Number of buffers in queue
rlm@0:     ALuint BuffersPlayed;    // Number of buffers played on this loop
rlm@0: 
rlm@0:     ALfilter DirectFilter;
rlm@0: 
rlm@0:     struct {
rlm@0:         struct ALeffectslot *Slot;
rlm@0:         ALfilter WetFilter;
rlm@0:     } Send[MAX_SENDS];
rlm@0: 
rlm@0:     ALboolean DryGainHFAuto;
rlm@0:     ALboolean WetGainAuto;
rlm@0:     ALboolean WetGainHFAuto;
rlm@0:     ALfloat   OuterGainHF;
rlm@0: 
rlm@0:     ALfloat AirAbsorptionFactor;
rlm@0:     ALfloat RoomRolloffFactor;
rlm@0:     ALfloat DopplerFactor;
rlm@0: 
rlm@0:     ALint  lOffset;
rlm@0:     ALint  lOffsetType;
rlm@0: 
rlm@0:     // Source Type (Static, Streaming, or Undetermined)
rlm@0:     ALint  lSourceType;
rlm@0: 
rlm@0:     ALuint NumChannels;
rlm@0:     ALuint SampleSize;
rlm@0: 
rlm@0:     /* HRTF info */
rlm@0:     ALboolean HrtfMoving;
rlm@0:     ALuint HrtfCounter;
rlm@0:     ALfloat HrtfHistory[MAXCHANNELS][SRC_HISTORY_LENGTH];
rlm@0:     ALfloat HrtfValues[MAXCHANNELS][HRIR_LENGTH][2];
rlm@0:     ALuint HrtfOffset;
rlm@0: 
rlm@0:     /* Current target parameters used for mixing */
rlm@0:     struct {
rlm@0:         MixerFunc DoMix;
rlm@0: 
rlm@0:         ALint Step;
rlm@0: 
rlm@0:         ALfloat HrtfGain;
rlm@0:         ALfloat HrtfDir[3];
rlm@0:         ALfloat HrtfCoeffs[MAXCHANNELS][HRIR_LENGTH][2];
rlm@0:         ALuint HrtfDelay[MAXCHANNELS][2];
rlm@0:         ALfloat HrtfCoeffStep[HRIR_LENGTH][2];
rlm@0:         ALint HrtfDelayStep[2];
rlm@0: 
rlm@0:         /* A mixing matrix. First subscript is the channel number of the input
rlm@0:          * data (regardless of channel configuration) and the second is the
rlm@0:          * channel target (eg. FRONT_LEFT) */
rlm@0:         ALfloat DryGains[MAXCHANNELS][MAXCHANNELS];
rlm@0: 
rlm@0:         FILTER iirFilter;
rlm@0:         ALfloat history[MAXCHANNELS*2];
rlm@0: 
rlm@0:         struct {
rlm@0:             struct ALeffectslot *Slot;
rlm@0:             ALfloat WetGain;
rlm@0:             FILTER iirFilter;
rlm@0:             ALfloat history[MAXCHANNELS];
rlm@0:         } Send[MAX_SENDS];
rlm@0:     } Params;
rlm@0:     ALboolean NeedsUpdate;
rlm@0: 
rlm@0:     ALvoid (*Update)(struct ALsource *self, const ALCcontext *context);
rlm@0: 
rlm@0:     // Index to itself
rlm@0:     ALuint source;
rlm@0: } ALsource;
rlm@0: #define ALsource_Update(s,a)                 ((s)->Update(s,a))
rlm@0: 
rlm@0: ALvoid SetSourceState(ALsource *Source, ALCcontext *Context, ALenum state);
rlm@0: ALboolean ApplyOffset(ALsource *Source);
rlm@0: 
rlm@0: ALvoid ReleaseALSources(ALCcontext *Context);
rlm@0: 
rlm@0: #ifdef __cplusplus
rlm@0: }
rlm@0: #endif
rlm@0: 
rlm@0: #endif