#ifndef _AL_SOURCE_H_ #define _AL_SOURCE_H_ #define MAX_SENDS 4 #include "alMain.h" #include "alu.h" #include "hrtf.h" #ifdef __cplusplus extern "C" { #endif extern enum Resampler DefaultResampler; extern const ALsizei ResamplerPadding[ResamplerMax]; extern const ALsizei ResamplerPrePadding[ResamplerMax]; typedef struct ALbufferlistitem { struct ALbuffer *buffer; struct ALbufferlistitem *next; struct ALbufferlistitem *prev; } ALbufferlistitem; typedef struct ALactivesource { struct ALsource *Source; /** Method to update mixing parameters. */ ALvoid (*Update)(struct ALactivesource *self, const ALCcontext *context); /** Current target parameters used for mixing. */ ResamplerFunc Resample; union { MixerFunc Mix; HrtfMixerFunc HrtfMix; } Dry; MixerFunc WetMix; ALboolean IsHrtf; ALint Step; ALuint Offset; /* Number of output samples mixed since starting. */ DirectParams Direct; SendParams Send[MAX_SENDS]; } ALactivesource; typedef struct ALsource { /** Source properties. */ volatile ALfloat Pitch; volatile ALfloat Gain; volatile ALfloat OuterGain; volatile ALfloat MinGain; volatile ALfloat MaxGain; volatile ALfloat InnerAngle; volatile ALfloat OuterAngle; volatile ALfloat RefDistance; volatile ALfloat MaxDistance; volatile ALfloat RollOffFactor; volatile ALfloat Position[3]; volatile ALfloat Velocity[3]; volatile ALfloat Orientation[3]; volatile ALboolean HeadRelative; volatile ALboolean Looping; volatile enum DistanceModel DistanceModel; volatile ALboolean DirectChannels; volatile ALboolean DryGainHFAuto; volatile ALboolean WetGainAuto; volatile ALboolean WetGainHFAuto; volatile ALfloat OuterGainHF; volatile ALfloat AirAbsorptionFactor; volatile ALfloat RoomRolloffFactor; volatile ALfloat DopplerFactor; enum Resampler Resampler; /** * Last user-specified offset, and the offset type (bytes, samples, or * seconds). */ ALdouble Offset; ALenum OffsetType; /** Source type (static, streaming, or undetermined) */ volatile ALint SourceType; /** Source state (initial, playing, paused, or stopped) */ volatile ALenum state; ALenum new_state; /** * Source offset in samples, relative to the currently playing buffer, NOT * the whole queue, and the fractional (fixed-point) offset to the next * sample. */ ALuint position; ALuint position_fraction; /** Source Buffer Queue info. */ ALbufferlistitem *volatile queue; ALbufferlistitem *volatile current_buffer; RWLock queue_lock; /** Current buffer sample info. */ ALuint NumChannels; ALuint SampleSize; /** Direct filter and auxiliary send info. */ struct { ALfloat Gain; ALfloat GainHF; ALfloat HFReference; ALfloat GainLF; ALfloat LFReference; } Direct; struct { struct ALeffectslot *Slot; ALfloat Gain; ALfloat GainHF; ALfloat HFReference; ALfloat GainLF; ALfloat LFReference; } Send[MAX_SENDS]; /** Source needs to update its mixing parameters. */ volatile ALenum NeedsUpdate; /** Self ID */ ALuint id; } ALsource; inline struct ALsource *LookupSource(ALCcontext *context, ALuint id) { return (struct ALsource*)LookupUIntMapKey(&context->SourceMap, id); } inline struct ALsource *RemoveSource(ALCcontext *context, ALuint id) { return (struct ALsource*)RemoveUIntMapKey(&context->SourceMap, id); } ALvoid SetSourceState(ALsource *Source, ALCcontext *Context, ALenum state); ALboolean ApplyOffset(ALsource *Source); ALvoid ReleaseALSources(ALCcontext *Context); #ifdef __cplusplus } #endif #endif