shithub: leaf

ref: 7803edf0b50bd7e394b618d8eaa4fb97de600bd6
dir: /LEAF/Inc/leaf-distortion.h/

/*==============================================================================

    leaf-distortion.h
    Created: 25 Oct 2019 10:23:28am
    Author:  Matthew Wang

==============================================================================*/

#ifndef LEAF_DISTORTION_H_INCLUDED
#define LEAF_DISTORTION_H_INCLUDED

#ifdef __cplusplus
extern "C" {
#endif

//==============================================================================
    
#include "leaf-global.h"
#include "leaf-mempool.h"
#include "leaf-math.h"

//==============================================================================
    
/* tLockhartWavefolder */

typedef struct _tLockhartWavefolder
{
    double Ln1;
    double Fn1;
    float xn1;
    
} tLockhartWavefolder;

void    tLockhartWavefolder_init    (tLockhartWavefolder* const);
void    tLockhartWavefolder_free    (tLockhartWavefolder* const);

float   tLockhartWavefolder_tick    (tLockhartWavefolder* const, float samp);

//==============================================================================
    
typedef struct _tCrusher
{
    float srr;
    float mult, div;
    float rnd;
    
    uint32_t  op; //which bitwise operation (0-7)
    
    float gain;
    
} tCrusher;


void    tCrusher_init    (tCrusher* const);
void    tCrusher_free    (tCrusher* const);

float   tCrusher_tick    (tCrusher* const, float input);

// 0.0 - 1.0
void    tCrusher_setOperation (tCrusher* const, float op);

// 0.0 - 1.0
void    tCrusher_setQuality (tCrusher* const, float val);

// what division to round to
void    tCrusher_setRound (tCrusher* const, float rnd);

// sampling ratio
void    tCrusher_setSamplingRatio (tCrusher* const, float ratio);
    
//==============================================================================
    
typedef struct _tOversampler
{
    int ratio;
    float* pCoeffs;
    float* upState;
    float* downState;
    int numTaps;
    int phaseLength;
} tOversampler;

void        tOversampler_init(tOversampler* const, int order, oBool extraQuality);
void        tOversampler_free(tOversampler* const);
void        tOversampler_upsample(tOversampler* const, float input, float* output);
float       tOversampler_downsample(tOversampler *const os, float* input);
float       tOversampler_tick(tOversampler* const, float input, float (*effectTick)(float));
int         tOversampler_getLatency(tOversampler* const os);

//==============================================================================
    
#ifdef __cplusplus
}
#endif

#endif // LEAF_DISTORTION_H_INCLUDED

//==============================================================================