c52bf8c401
Rather than creating an effect-specific buffer that gets passed along as a property, the buffer is set the effect state when the effect state is created, the device is updated, or the buffer is changed. The buffer can only be set while the effect slot isn't playing, so it won't be changed or updated while the mixer is processing the effect state.
117 lines
2.7 KiB
C++
117 lines
2.7 KiB
C++
#ifndef AL_AUXEFFECTSLOT_H
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#define AL_AUXEFFECTSLOT_H
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#include <atomic>
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#include <cstddef>
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#include "AL/al.h"
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#include "AL/alc.h"
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#include "AL/efx.h"
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#include "alcmain.h"
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#include "almalloc.h"
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#include "atomic.h"
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#include "effects/base.h"
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#include "intrusive_ptr.h"
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#include "vector.h"
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struct ALbuffer;
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struct ALeffect;
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struct ALeffectslot;
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using ALeffectslotArray = al::FlexArray<ALeffectslot*>;
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struct ALeffectslotProps {
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float Gain;
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bool AuxSendAuto;
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ALeffectslot *Target;
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ALenum Type;
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EffectProps Props;
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al::intrusive_ptr<EffectState> State;
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std::atomic<ALeffectslotProps*> next;
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DEF_NEWDEL(ALeffectslotProps)
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};
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enum class SlotState : ALenum {
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Initial = AL_INITIAL,
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Playing = AL_PLAYING,
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Stopped = AL_STOPPED,
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};
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struct ALeffectslot {
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float Gain{1.0f};
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bool AuxSendAuto{true};
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ALeffectslot *Target{nullptr};
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ALbuffer *Buffer{nullptr};
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struct {
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ALenum Type{AL_EFFECT_NULL};
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EffectProps Props{};
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al::intrusive_ptr<EffectState> State;
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} Effect;
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std::atomic_flag PropsClean;
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SlotState mState{SlotState::Initial};
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RefCount ref{0u};
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struct {
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std::atomic<ALeffectslotProps*> Update{nullptr};
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float Gain{1.0f};
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bool AuxSendAuto{true};
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ALeffectslot *Target{nullptr};
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ALenum EffectType{AL_EFFECT_NULL};
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EffectProps mEffectProps{};
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EffectState *mEffectState{nullptr};
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float RoomRolloff{0.0f}; /* Added to the source's room rolloff, not multiplied. */
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float DecayTime{0.0f};
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float DecayLFRatio{0.0f};
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float DecayHFRatio{0.0f};
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bool DecayHFLimit{false};
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float AirAbsorptionGainHF{1.0f};
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} Params;
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/* Self ID */
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ALuint id{};
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/* Mixing buffer used by the Wet mix. */
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al::vector<FloatBufferLine, 16> MixBuffer;
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/* Wet buffer configuration is ACN channel order with N3D scaling.
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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.
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*/
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MixParams Wet;
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ALeffectslot() { PropsClean.test_and_set(std::memory_order_relaxed); }
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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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ALenum init();
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ALenum initEffect(ALeffect *effect, ALCcontext *context);
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void updateProps(ALCcontext *context);
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static ALeffectslotArray *CreatePtrArray(size_t count) noexcept;
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/* This can be new'd for the context's default effect slot. */
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DEF_NEWDEL(ALeffectslot)
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};
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void UpdateAllEffectSlotProps(ALCcontext *context);
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#endif
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