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#ifndef _AL_AUXEFFECTSLOT_H_
#define _AL_AUXEFFECTSLOT_H_

#include "AL/al.h"
#include "alEffect.h"
#include "alFilter.h"

#ifdef __cplusplus
extern "C" {
#endif

#define AL_EFFECTSLOT_EFFECT                               0x0001
#define AL_EFFECTSLOT_GAIN                                 0x0002
#define AL_EFFECTSLOT_AUXILIARY_SEND_AUTO                  0x0003

#define AL_EFFECTSLOT_NULL                                 0x0000

typedef struct ALeffectState ALeffectState;

typedef struct ALeffectslot
{
    ALeffect effect;

    ALfloat Gain;
    ALboolean AuxSendAuto;

    ALeffectState *EffectState;

    ALfloat WetBuffer[BUFFERSIZE];

    ALuint refcount;

    // Index to itself
    ALuint effectslot;

    struct ALeffectslot *next;
} ALeffectslot;

ALvoid AL_APIENTRY alGenAuxiliaryEffectSlots(ALsizei n, ALuint *effectslots);
ALvoid AL_APIENTRY alDeleteAuxiliaryEffectSlots(ALsizei n, ALuint *effectslots);
ALboolean AL_APIENTRY alIsAuxiliaryEffectSlot(ALuint effectslot);

ALvoid AL_APIENTRY alAuxiliaryEffectSloti(ALuint effectslot, ALenum param, ALint iValue);
ALvoid AL_APIENTRY alAuxiliaryEffectSlotiv(ALuint effectslot, ALenum param, ALint *piValues);
ALvoid AL_APIENTRY alAuxiliaryEffectSlotf(ALuint effectslot, ALenum param, ALfloat flValue);
ALvoid AL_APIENTRY alAuxiliaryEffectSlotfv(ALuint effectslot, ALenum param, ALfloat *pflValues);

ALvoid AL_APIENTRY alGetAuxiliaryEffectSloti(ALuint effectslot, ALenum param, ALint *piValue);
ALvoid AL_APIENTRY alGetAuxiliaryEffectSlotiv(ALuint effectslot, ALenum param, ALint *piValues);
ALvoid AL_APIENTRY alGetAuxiliaryEffectSlotf(ALuint effectslot, ALenum param, ALfloat *pflValue);
ALvoid AL_APIENTRY alGetAuxiliaryEffectSlotfv(ALuint effectslot, ALenum param, ALfloat *pflValues);

ALvoid ReleaseALAuxiliaryEffectSlots(ALCcontext *Context);


struct ALeffectState {
    ALvoid (*Destroy)(ALeffectState *State);
    ALvoid (*Update)(ALeffectState *State, ALCcontext *Context, ALeffectslot *Slot, ALeffect *Effect);
    ALvoid (*Process)(ALeffectState *State, ALuint SamplesToDo, const ALfloat *SamplesIn, ALfloat (*SamplesOut)[OUTPUTCHANNELS]);
};

ALeffectState *EAXVerbCreate(ALCcontext *Context);
ALeffectState *VerbCreate(ALCcontext *Context);
ALeffectState *EchoCreate(ALCcontext *Context);

#define ALEffect_Destroy(a)       ((a)->Destroy((a)))
#define ALEffect_Update(a,b,c,d)  ((a)->Update((a),(b),(c),(d)))
#define ALEffect_Process(a,b,c,d) ((a)->Process((a),(b),(c),(d)))


#ifdef __cplusplus
}
#endif

#endif