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#ifndef EFFECTS_BASE_H
#define EFFECTS_BASE_H
#include <cstddef>
#include "alcmain.h"
#include "alexcpt.h"
#include "almalloc.h"
#include "alspan.h"
#include "atomic.h"
#include "buffer_formats.h"
#include "intrusive_ptr.h"
struct ALeffectslot;
union EffectProps {
struct {
// Shared Reverb Properties
float Density;
float Diffusion;
float Gain;
float GainHF;
float DecayTime;
float DecayHFRatio;
float ReflectionsGain;
float ReflectionsDelay;
float LateReverbGain;
float LateReverbDelay;
float AirAbsorptionGainHF;
float RoomRolloffFactor;
bool DecayHFLimit;
// Additional EAX Reverb Properties
float GainLF;
float DecayLFRatio;
float ReflectionsPan[3];
float LateReverbPan[3];
float EchoTime;
float EchoDepth;
float ModulationTime;
float ModulationDepth;
float HFReference;
float LFReference;
} Reverb;
struct {
float AttackTime;
float ReleaseTime;
float Resonance;
float PeakGain;
} Autowah;
struct {
int Waveform;
int Phase;
float Rate;
float Depth;
float Feedback;
float Delay;
} Chorus; /* Also Flanger */
struct {
bool OnOff;
} Compressor;
struct {
float Edge;
float Gain;
float LowpassCutoff;
float EQCenter;
float EQBandwidth;
} Distortion;
struct {
float Delay;
float LRDelay;
float Damping;
float Feedback;
float Spread;
} Echo;
struct {
float LowCutoff;
float LowGain;
float Mid1Center;
float Mid1Gain;
float Mid1Width;
float Mid2Center;
float Mid2Gain;
float Mid2Width;
float HighCutoff;
float HighGain;
} Equalizer;
struct {
float Frequency;
int LeftDirection;
int RightDirection;
} Fshifter;
struct {
float Frequency;
float HighPassCutoff;
int Waveform;
} Modulator;
struct {
int CoarseTune;
int FineTune;
} Pshifter;
struct {
float Rate;
int PhonemeA;
int PhonemeB;
int PhonemeACoarseTuning;
int PhonemeBCoarseTuning;
int Waveform;
} Vmorpher;
struct {
float Gain;
} Dedicated;
};
class effect_exception final : public al::base_exception {
public:
[[gnu::format(printf, 3, 4)]]
effect_exception(ALenum code, const char *msg, ...);
};
struct EffectVtable {
void (*const setParami)(EffectProps *props, ALenum param, int val);
void (*const setParamiv)(EffectProps *props, ALenum param, const int *vals);
void (*const setParamf)(EffectProps *props, ALenum param, float val);
void (*const setParamfv)(EffectProps *props, ALenum param, const float *vals);
void (*const getParami)(const EffectProps *props, ALenum param, int *val);
void (*const getParamiv)(const EffectProps *props, ALenum param, int *vals);
void (*const getParamf)(const EffectProps *props, ALenum param, float *val);
void (*const getParamfv)(const EffectProps *props, ALenum param, float *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 EffectBufferBase : public al::intrusive_ref<EffectBufferBase> {
virtual ~EffectBufferBase() = default;
};
struct EffectTarget {
MixParams *Main;
RealMixParams *RealOut;
};
struct EffectState : public al::intrusive_ref<EffectState> {
al::span<FloatBufferLine> mOutTarget;
virtual ~EffectState() = default;
virtual void deviceUpdate(const ALCdevice *device) = 0;
/* Implementations are currently required to copy the buffer data if they
* wish to hold on to it, as there's no guarantee the buffer won't be
* detached and deleted or altered during a mix.
*/
virtual EffectBufferBase *createBuffer(const ALCdevice */*device*/,
const al::byte */*sampleData*/, ALuint /*sampleRate*/, FmtType /*sampleType*/,
FmtChannels /*channelType*/, ALuint /*numSamples*/)
{ return nullptr; }
virtual void update(const ALCcontext *context, const ALeffectslot *slot, const EffectProps *props, const EffectTarget target) = 0;
virtual void process(const size_t samplesToDo, const al::span<const FloatBufferLine> samplesIn, const al::span<FloatBufferLine> samplesOut) = 0;
};
struct EffectStateFactory {
virtual ~EffectStateFactory() { }
virtual EffectState *create() = 0;
virtual EffectProps 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* VmorpherStateFactory_getFactory(void);
EffectStateFactory *DedicatedStateFactory_getFactory(void);
EffectStateFactory *ConvolutionStateFactory_getFactory(void);
#endif /* EFFECTS_BASE_H */
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