Move the effects base and effectslot to core

1 files changed, 88 insertions, 0 deletions

diff --git a/core/effectslot.h b/core/effectslot.h
new file mode 100644
index 00000000..8b7b977c
--- /dev/null
+++ b/core/effectslot.h
@@ -0,0 +1,88 @@
+#ifndef CORE_EFFECTSLOT_H
+#define CORE_EFFECTSLOT_H
+
+#include <atomic>
+
+#include "almalloc.h"
+#include "device.h"
+#include "effects/base.h"
+#include "intrusive_ptr.h"
+
+struct EffectSlot;
+struct WetBuffer;
+
+using EffectSlotArray = al::FlexArray<EffectSlot*>;
+
+
+enum class EffectSlotType : unsigned char {
+    None,
+    Reverb,
+    Chorus,
+    Distortion,
+    Echo,
+    Flanger,
+    FrequencyShifter,
+    VocalMorpher,
+    PitchShifter,
+    RingModulator,
+    Autowah,
+    Compressor,
+    Equalizer,
+    EAXReverb,
+    DedicatedLFE,
+    DedicatedDialog,
+    Convolution
+};
+
+struct EffectSlotProps {
+    float Gain;
+    bool  AuxSendAuto;
+    EffectSlot *Target;
+
+    EffectSlotType Type;
+    EffectProps Props;
+
+    al::intrusive_ptr<EffectState> State;
+
+    std::atomic<EffectSlotProps*> next;
+
+    DEF_NEWDEL(EffectSlotProps)
+};
+
+
+struct EffectSlot {
+    std::atomic<EffectSlotProps*> Update{nullptr};
+
+    /* 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;
+
+    float Gain{1.0f};
+    bool  AuxSendAuto{true};
+    EffectSlot *Target{nullptr};
+
+    EffectSlotType EffectType{EffectSlotType::None};
+    EffectProps mEffectProps{};
+    EffectState *mEffectState{nullptr};
+
+    float RoomRolloff{0.0f}; /* Added to the source's room rolloff, not multiplied. */
+    float DecayTime{0.0f};
+    float DecayLFRatio{0.0f};
+    float DecayHFRatio{0.0f};
+    bool DecayHFLimit{false};
+    float AirAbsorptionGainHF{1.0f};
+
+    /* Mixing buffer used by the Wet mix. */
+    WetBuffer *mWetBuffer{nullptr};
+
+    ~EffectSlot();
+
+    static EffectSlotArray *CreatePtrArray(size_t count) noexcept;
+
+    DISABLE_ALLOC()
+};
+
+#endif /* CORE_EFFECTSLOT_H */