1 files changed, 84 insertions, 0 deletions
diff --git a/Alc/effects/base.h b/Alc/effects/base.h
new file mode 100644
index 00000000..54d0c408
--- /dev/null
+++ b/Alc/effects/base.h
@@ -0,0 +1,84 @@
+#ifndef EFFECTS_BASE_H
+#define EFFECTS_BASE_H
+
+#include "alMain.h"
+
+#include "almalloc.h"
+#include "atomic.h"
+
+
+struct ALeffectslot;
+union ALeffectProps;
+
+
+struct EffectVtable {
+    void (*const setParami)(ALeffect *effect, ALCcontext *context, ALenum param, ALint val);
+    void (*const setParamiv)(ALeffect *effect, ALCcontext *context, ALenum param, const ALint *vals);
+    void (*const setParamf)(ALeffect *effect, ALCcontext *context, ALenum param, ALfloat val);
+    void (*const setParamfv)(ALeffect *effect, ALCcontext *context, ALenum param, const ALfloat *vals);
+
+    void (*const getParami)(const ALeffect *effect, ALCcontext *context, ALenum param, ALint *val);
+    void (*const getParamiv)(const ALeffect *effect, ALCcontext *context, ALenum param, ALint *vals);
+    void (*const getParamf)(const ALeffect *effect, ALCcontext *context, ALenum param, ALfloat *val);
+    void (*const getParamfv)(const ALeffect *effect, ALCcontext *context, ALenum param, ALfloat *vals);
+};
+
+#define DEFINE_ALEFFECT_VTABLE(T)           \
+const EffectVtable T##_vtable = {           \
+    T##_setParami, T##_setParamiv,          \
+    T##_setParamf, T##_setParamfv,          \
+    T##_getParami, T##_getParamiv,          \
+    T##_getParamf, T##_getParamfv,          \
+}
+
+
+struct EffectTarget {
+    MixParams *Main;
+    RealMixParams *RealOut;
+};
+
+struct EffectState {
+    RefCount mRef{1u};
+
+    ALfloat (*mOutBuffer)[BUFFERSIZE]{nullptr};
+    ALsizei mOutChannels{0};
+
+
+    virtual ~EffectState() = default;
+
+    virtual ALboolean deviceUpdate(const ALCdevice *device) = 0;
+    virtual void update(const ALCcontext *context, const ALeffectslot *slot, const ALeffectProps *props, const EffectTarget target) = 0;
+    virtual void process(ALsizei samplesToDo, const ALfloat (*RESTRICT samplesIn)[BUFFERSIZE], const ALsizei numInput, ALfloat (*RESTRICT samplesOut)[BUFFERSIZE], const ALsizei numOutput) = 0;
+
+    void IncRef() noexcept;
+    void DecRef() noexcept;
+};
+
+
+struct EffectStateFactory {
+    virtual ~EffectStateFactory() { }
+
+    virtual EffectState *create() = 0;
+    virtual ALeffectProps getDefaultProps() const noexcept = 0;
+    virtual const EffectVtable *getEffectVtable() const noexcept = 0;
+};
+
+
+EffectStateFactory *NullStateFactory_getFactory(void);
+EffectStateFactory *ReverbStateFactory_getFactory(void);
+EffectStateFactory *StdReverbStateFactory_getFactory(void);
+EffectStateFactory *AutowahStateFactory_getFactory(void);
+EffectStateFactory *ChorusStateFactory_getFactory(void);
+EffectStateFactory *CompressorStateFactory_getFactory(void);
+EffectStateFactory *DistortionStateFactory_getFactory(void);
+EffectStateFactory *EchoStateFactory_getFactory(void);
+EffectStateFactory *EqualizerStateFactory_getFactory(void);
+EffectStateFactory *FlangerStateFactory_getFactory(void);
+EffectStateFactory *FshifterStateFactory_getFactory(void);
+EffectStateFactory *ModulatorStateFactory_getFactory(void);
+EffectStateFactory *PshifterStateFactory_getFactory(void);
+
+EffectStateFactory *DedicatedStateFactory_getFactory(void);
+
+
+#endif /* EFFECTS_BASE_H */