144 lines
3.9 KiB
C
144 lines
3.9 KiB
C
#ifndef _AL_AUXEFFECTSLOT_H_
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#define _AL_AUXEFFECTSLOT_H_
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#include "alMain.h"
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#include "alEffect.h"
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#include "almalloc.h"
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#include "atomic.h"
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struct ALeffectslot;
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struct EffectState {
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RefCount mRef{1u};
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ALfloat (*mOutBuffer)[BUFFERSIZE]{nullptr};
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ALsizei mOutChannels{0};
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virtual ~EffectState() = default;
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virtual ALboolean deviceUpdate(ALCdevice *device) = 0;
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virtual void update(const ALCcontext *context, const ALeffectslot *slot, const ALeffectProps *props) = 0;
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virtual void process(ALsizei samplesToDo, const ALfloat (*RESTRICT samplesIn)[BUFFERSIZE], ALfloat (*RESTRICT samplesOut)[BUFFERSIZE], ALsizei numChannels) = 0;
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void IncRef() noexcept;
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void DecRef() noexcept;
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};
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struct EffectStateFactory {
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virtual ~EffectStateFactory() { }
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virtual EffectState *create() = 0;
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};
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#define MAX_EFFECT_CHANNELS (4)
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struct ALeffectslotArray {
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ALsizei count;
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struct ALeffectslot *slot[];
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};
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struct ALeffectslotProps {
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ALfloat Gain;
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ALboolean AuxSendAuto;
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ALenum Type;
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ALeffectProps Props;
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EffectState *State;
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ATOMIC(struct ALeffectslotProps*) next;
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};
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struct ALeffectslot {
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ALfloat Gain{1.0f};
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ALboolean AuxSendAuto{AL_TRUE};
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struct {
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ALenum Type{AL_EFFECT_NULL};
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ALeffectProps Props{};
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EffectState *State{nullptr};
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} Effect;
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ATOMIC(ALenum) PropsClean{AL_TRUE};
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RefCount ref{0u};
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ATOMIC(struct ALeffectslotProps*) Update{nullptr};
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struct {
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ALfloat Gain{1.0f};
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ALboolean AuxSendAuto{AL_TRUE};
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ALenum EffectType{AL_EFFECT_NULL};
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ALeffectProps EffectProps{};
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EffectState *EffectState{nullptr};
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ALfloat RoomRolloff{0.0f}; /* Added to the source's room rolloff, not multiplied. */
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ALfloat DecayTime{0.0f};
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ALfloat DecayLFRatio{0.0f};
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ALfloat DecayHFRatio{0.0f};
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ALboolean DecayHFLimit{AL_FALSE};
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ALfloat AirAbsorptionGainHF{1.0f};
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} Params;
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/* Self ID */
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ALuint id{};
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ALsizei NumChannels{};
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BFChannelConfig ChanMap[MAX_EFFECT_CHANNELS];
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/* Wet buffer configuration is ACN channel order with N3D scaling:
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* * Channel 0 is the unattenuated mono signal.
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* * Channel 1 is OpenAL -X * sqrt(3)
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* * Channel 2 is OpenAL Y * sqrt(3)
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* * Channel 3 is OpenAL -Z * sqrt(3)
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* Consequently, effects that only want to work with mono input can use
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* channel 0 by itself. Effects that want multichannel can process the
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* ambisonics signal and make a B-Format source pan for first-order device
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* output (FOAOut).
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*/
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alignas(16) ALfloat WetBuffer[MAX_EFFECT_CHANNELS][BUFFERSIZE];
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ALeffectslot() = default;
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ALeffectslot(const ALeffectslot&) = delete;
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ALeffectslot& operator=(const ALeffectslot&) = delete;
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~ALeffectslot();
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DEF_NEWDEL(ALeffectslot)
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};
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ALenum InitEffectSlot(ALeffectslot *slot);
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void UpdateEffectSlotProps(ALeffectslot *slot, ALCcontext *context);
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void UpdateAllEffectSlotProps(ALCcontext *context);
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ALvoid ReleaseALAuxiliaryEffectSlots(ALCcontext *Context);
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EffectStateFactory *NullStateFactory_getFactory(void);
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EffectStateFactory *ReverbStateFactory_getFactory(void);
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EffectStateFactory *AutowahStateFactory_getFactory(void);
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EffectStateFactory *ChorusStateFactory_getFactory(void);
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EffectStateFactory *CompressorStateFactory_getFactory(void);
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EffectStateFactory *DistortionStateFactory_getFactory(void);
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EffectStateFactory *EchoStateFactory_getFactory(void);
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EffectStateFactory *EqualizerStateFactory_getFactory(void);
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EffectStateFactory *FlangerStateFactory_getFactory(void);
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EffectStateFactory *FshifterStateFactory_getFactory(void);
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EffectStateFactory *ModulatorStateFactory_getFactory(void);
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EffectStateFactory *PshifterStateFactory_getFactory(void);
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EffectStateFactory *DedicatedStateFactory_getFactory(void);
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ALenum InitializeEffect(ALCcontext *Context, ALeffectslot *EffectSlot, ALeffect *effect);
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#endif
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