ref: 293326e64ab3176edc2d04d1b0f103d168fb4b80
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"
/*!
* @internal
* Header.
* @include basic-oscillators.h
* @example basic-oscillators.c
* An example.
*/
//==============================================================================
typedef struct _tSampleReducer
{
float invRatio;
float hold;
uint32_t count;
} _tSampleReducer;
typedef _tSampleReducer* tSampleReducer;
void tSampleReducer_init (tSampleReducer* const);
void tSampleReducer_free (tSampleReducer* const);
void tSampleReducer_initToPool (tSampleReducer* const, tMempool* const);
void tSampleReducer_freeFromPool (tSampleReducer* const, tMempool* const);
float tSampleReducer_tick (tSampleReducer* const, float input);
// sampling ratio
void tSampleReducer_setRatio (tSampleReducer* const, float ratio);
//==============================================================================
typedef struct _tOversampler
{
int ratio;
float* pCoeffs;
float* upState;
float* downState;
int numTaps;
int phaseLength;
} _tOversampler;
typedef _tOversampler* tOversampler;
void tOversampler_init (tOversampler* const, int order, oBool extraQuality);
void tOversampler_free (tOversampler* const);
void tOversampler_initToPool (tOversampler* const, int order, oBool extraQuality, tMempool* const);
void tOversampler_freeFromPool (tOversampler* const, tMempool* 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);
//==============================================================================
/* tLockhartWavefolder */
typedef struct _tLockhartWavefolder
{
double Ln1;
double Fn1;
float xn1;
double RL;
double R;
double VT;
double Is;
double a;
double b;
double d;
// Antialiasing error threshold
double thresh;
double half_a;
double longthing;
} _tLockhartWavefolder;
typedef _tLockhartWavefolder* tLockhartWavefolder;
void tLockhartWavefolder_init (tLockhartWavefolder* const);
void tLockhartWavefolder_free (tLockhartWavefolder* const);
void tLockhartWavefolder_initToPool (tLockhartWavefolder* const, tMempool* const);
void tLockhartWavefolder_freeFromPool (tLockhartWavefolder* const, tMempool* 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;
tSampleReducer sReducer;
} _tCrusher;
typedef _tCrusher* tCrusher;
void tCrusher_init (tCrusher* const);
void tCrusher_free (tCrusher* const);
void tCrusher_initToPool (tCrusher* const, tMempool* const);
void tCrusher_freeFromPool (tCrusher* const, tMempool* 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);
//==============================================================================
#ifdef __cplusplus
}
#endif
#endif // LEAF_DISTORTION_H_INCLUDED
//==============================================================================