#ifndef _AL_EFFECT_H_
#define _AL_EFFECT_H_

#include "AL/al.h"

#ifdef __cplusplus
extern "C" {
#endif

enum {
    EAXREVERB = 0,
    REVERB,
    ECHO,
    MODULATOR,
    DEDICATED,

    MAX_EFFECTS
};
extern ALboolean DisabledEffects[MAX_EFFECTS];

extern ALfloat ReverbBoost;
extern ALboolean EmulateEAXReverb;

typedef struct ALeffect
{
    // Effect type (AL_EFFECT_NULL, ...)
    ALenum type;

    struct {
        // Shared Reverb Properties
        ALfloat Density;
        ALfloat Diffusion;
        ALfloat Gain;
        ALfloat GainHF;
        ALfloat DecayTime;
        ALfloat DecayHFRatio;
        ALfloat ReflectionsGain;
        ALfloat ReflectionsDelay;
        ALfloat LateReverbGain;
        ALfloat LateReverbDelay;
        ALfloat AirAbsorptionGainHF;
        ALfloat RoomRolloffFactor;
        ALboolean DecayHFLimit;

        // Additional EAX Reverb Properties
        ALfloat GainLF;
        ALfloat DecayLFRatio;
        ALfloat ReflectionsPan[3];
        ALfloat LateReverbPan[3];
        ALfloat EchoTime;
        ALfloat EchoDepth;
        ALfloat ModulationTime;
        ALfloat ModulationDepth;
        ALfloat HFReference;
        ALfloat LFReference;
    } Reverb;

    struct {
        ALfloat Delay;
        ALfloat LRDelay;

        ALfloat Damping;
        ALfloat Feedback;

        ALfloat Spread;
    } Echo;

    struct {
        ALfloat Frequency;
        ALfloat HighPassCutoff;
        ALint Waveform;
    } Modulator;

    struct {
        ALfloat Gain;
    } Dedicated;

    // Index to itself
    ALuint effect;
} ALeffect;

static __inline ALboolean IsReverbEffect(ALenum type)
{ return type == AL_EFFECT_REVERB || type == AL_EFFECT_EAXREVERB; }

ALvoid ReleaseALEffects(ALCdevice *device);

#ifdef __cplusplus
}
#endif

#endif