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#ifndef _AL_EFFECT_H_
#define _AL_EFFECT_H_
#include "alMain.h"
#ifdef __cplusplus
extern "C" {
#endif
struct ALeffect;
enum {
EAXREVERB = 0,
REVERB,
AUTOWAH,
CHORUS,
DISTORTION,
ECHO,
EQUALIZER,
FLANGER,
MODULATOR,
DEDICATED,
MAX_EFFECTS
};
extern ALboolean DisabledEffects[MAX_EFFECTS];
extern ALfloat ReverbBoost;
extern ALboolean EmulateEAXReverb;
struct ALeffectVtable {
void (*const setParami)(struct ALeffect *effect, ALCcontext *context, ALenum param, ALint val);
void (*const setParamiv)(struct ALeffect *effect, ALCcontext *context, ALenum param, const ALint *vals);
void (*const setParamf)(struct ALeffect *effect, ALCcontext *context, ALenum param, ALfloat val);
void (*const setParamfv)(struct ALeffect *effect, ALCcontext *context, ALenum param, const ALfloat *vals);
void (*const getParami)(struct ALeffect *effect, ALCcontext *context, ALenum param, ALint *val);
void (*const getParamiv)(struct ALeffect *effect, ALCcontext *context, ALenum param, ALint *vals);
void (*const getParamf)(struct ALeffect *effect, ALCcontext *context, ALenum param, ALfloat *val);
void (*const getParamfv)(struct ALeffect *effect, ALCcontext *context, ALenum param, ALfloat *vals);
};
#define DEFINE_ALEFFECT_VTABLE(T) \
const struct ALeffectVtable T##_vtable = { \
T##_setParami, T##_setParamiv, \
T##_setParamf, T##_setParamfv, \
T##_getParami, T##_getParamiv, \
T##_getParamf, T##_getParamfv, \
}
extern const struct ALeffectVtable ALeaxreverb_vtable;
extern const struct ALeffectVtable ALreverb_vtable;
extern const struct ALeffectVtable ALautowah_vtable;
extern const struct ALeffectVtable ALchorus_vtable;
extern const struct ALeffectVtable ALdistortion_vtable;
extern const struct ALeffectVtable ALecho_vtable;
extern const struct ALeffectVtable ALequalizer_vtable;
extern const struct ALeffectVtable ALflanger_vtable;
extern const struct ALeffectVtable ALmodulator_vtable;
extern const struct ALeffectVtable ALnull_vtable;
extern const struct ALeffectVtable ALdedicated_vtable;
typedef union ALeffectProps {
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 AttackTime;
ALfloat ReleaseTime;
ALfloat PeakGain;
ALfloat Resonance;
} Autowah;
struct {
ALfloat Delay;
ALfloat LRDelay;
ALfloat Damping;
ALfloat Feedback;
ALfloat Spread;
} Echo;
struct {
ALfloat Frequency;
ALfloat HighPassCutoff;
ALint Waveform;
} Modulator;
struct {
ALfloat Gain;
} Dedicated;
struct {
ALint Waveform;
ALint Phase;
ALfloat Rate;
ALfloat Depth;
ALfloat Feedback;
ALfloat Delay;
} Chorus;
struct {
ALint Waveform;
ALint Phase;
ALfloat Rate;
ALfloat Depth;
ALfloat Feedback;
ALfloat Delay;
} Flanger;
struct {
ALfloat Delay;
ALfloat LowCutoff;
ALfloat LowGain;
ALfloat Mid1Center;
ALfloat Mid1Gain;
ALfloat Mid1Width;
ALfloat Mid2Center;
ALfloat Mid2Gain;
ALfloat Mid2Width;
ALfloat HighCutoff;
ALfloat HighGain;
} Equalizer;
struct {
ALfloat Edge;
ALfloat Gain;
ALfloat LowpassCutoff;
ALfloat EQCenter;
ALfloat EQBandwidth;
} Distortion;
} ALeffectProps;
typedef struct ALeffect {
// Effect type (AL_EFFECT_NULL, ...)
ALenum type;
ALeffectProps Props;
const struct ALeffectVtable *vtbl;
/* Self ID */
ALuint id;
} ALeffect;
static inline ALboolean IsReverbEffect(ALenum type)
{ return type == AL_EFFECT_REVERB || type == AL_EFFECT_EAXREVERB; }
ALenum InitEffect(ALeffect *effect);
ALvoid ReleaseALEffects(ALCdevice *device);
ALvoid LoadReverbPreset(const char *name, ALeffect *effect);
#ifdef __cplusplus
}
#endif
#endif
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