1 files changed, 103 insertions, 0 deletions
diff --git a/al/auxeffectslot.h b/al/auxeffectslot.h
new file mode 100644
index 00000000..369638a0
--- /dev/null
+++ b/al/auxeffectslot.h
@@ -0,0 +1,103 @@
+#ifndef AL_AUXEFFECTSLOT_H
+#define AL_AUXEFFECTSLOT_H
+
+#include <atomic>
+#include <cstddef>
+
+#include "AL/al.h"
+#include "AL/alc.h"
+#include "AL/efx.h"
+
+#include "alcmain.h"
+#include "almalloc.h"
+#include "atomic.h"
+#include "effects/base.h"
+#include "vector.h"
+
+struct ALeffect;
+struct ALeffectslot;
+
+
+using ALeffectslotArray = al::FlexArray<ALeffectslot*>;
+
+
+struct ALeffectslotProps {
+    ALfloat   Gain;
+    ALboolean AuxSendAuto;
+    ALeffectslot *Target;
+
+    ALenum Type;
+    EffectProps Props;
+
+    EffectState *State;
+
+    std::atomic<ALeffectslotProps*> next;
+};
+
+
+struct ALeffectslot {
+    ALfloat   Gain{1.0f};
+    ALboolean AuxSendAuto{AL_TRUE};
+    ALeffectslot *Target{nullptr};
+
+    struct {
+        ALenum Type{AL_EFFECT_NULL};
+        EffectProps Props{};
+
+        EffectState *State{nullptr};
+    } Effect;
+
+    std::atomic_flag PropsClean;
+
+    RefCount ref{0u};
+
+    std::atomic<ALeffectslotProps*> Update{nullptr};
+
+    struct {
+        ALfloat   Gain{1.0f};
+        ALboolean AuxSendAuto{AL_TRUE};
+        ALeffectslot *Target{nullptr};
+
+        ALenum EffectType{AL_EFFECT_NULL};
+        EffectProps mEffectProps{};
+        EffectState *mEffectState{nullptr};
+
+        ALfloat RoomRolloff{0.0f}; /* Added to the source's room rolloff, not multiplied. */
+        ALfloat DecayTime{0.0f};
+        ALfloat DecayLFRatio{0.0f};
+        ALfloat DecayHFRatio{0.0f};
+        ALboolean DecayHFLimit{AL_FALSE};
+        ALfloat AirAbsorptionGainHF{1.0f};
+    } Params;
+
+    /* Self ID */
+    ALuint id{};
+
+    /* Mixing buffer used by the Wet mix. */
+    al::vector<FloatBufferLine, 16> MixBuffer;
+
+    /* Wet buffer configuration is ACN channel order with N3D scaling.
+     * Consequently, effects that only want to work with mono input can use
+     * channel 0 by itself. Effects that want multichannel can process the
+     * ambisonics signal and make a B-Format source pan.
+     */
+    MixParams Wet;
+
+    ALeffectslot() { PropsClean.test_and_set(std::memory_order_relaxed); }
+    ALeffectslot(const ALeffectslot&) = delete;
+    ALeffectslot& operator=(const ALeffectslot&) = delete;
+    ~ALeffectslot();
+
+    static ALeffectslotArray *CreatePtrArray(size_t count) noexcept;
+
+    DEF_PLACE_NEWDEL()
+};
+
+ALenum InitEffectSlot(ALeffectslot *slot);
+void UpdateEffectSlotProps(ALeffectslot *slot, ALCcontext *context);
+void UpdateAllEffectSlotProps(ALCcontext *context);
+
+
+ALenum InitializeEffect(ALCcontext *Context, ALeffectslot *EffectSlot, ALeffect *effect);
+
+#endif