shithub: leaf

ref: 386620799c550f502c21dbb355c64a80c7f4d4d3
dir: /LEAF/Inc/leaf-oscillator.h/

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

    LEAFOscillator.h
    Created: 20 Jan 2017 12:00:58pm
    Author:  Michael R Mulshine

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

#ifndef LEAFOSCILLATOR_H_INCLUDED
#define LEAFOSCILLATOR_H_INCLUDED

// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

#include "leaf-globals.h"
#include "leaf-math.h"

#include "leaf-filter.h"

/*
extern const float* sinewave;

extern const float* sawtooth[11];

extern const float* triangle[11];

extern const float* squarewave[11];
 */

// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

/* tNeuron */
typedef enum NeuronMode
{
    NeuronNormal = 0,
    NeuronTanh,
    NeuronAaltoShaper,
    NeuronModeNil
} NeuronMode;

typedef struct _tNeuron
{
    tPoleZero f;
    
    NeuronMode mode;
    
    float voltage, current;
    float timeStep;
    
    float alpha[3];
    float beta[3];
    float rate[3];
    float V[3];
    float P[3];
    float gK, gN, gL, C;
} tNeuron;

void        tNeuron_init        (tNeuron* const);
void        tNeuron_free        (tNeuron* const);

void        tNeuron_reset       (tNeuron* const);
float       tNeuron_Tick        (tNeuron* const);
void        tNeuron_setMode     (tNeuron* const, NeuronMode mode);
void        tNeuron_setCurrent  (tNeuron* const, float current);
void        tNeuron_setK        (tNeuron* const, float K);
void        tNeuron_setL        (tNeuron* const, float L);
void        tNeuron_setN        (tNeuron* const, float N);
void        tNeuron_setC        (tNeuron* const, float C);
void        tNeuron_setV1       (tNeuron* const, float V1);
void        tNeuron_setV2       (tNeuron* const, float V2);
void        tNeuron_setV3       (tNeuron* const, float V3);
void        tNeuron_setTimeStep (tNeuron* const, float timestep);

// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

/* tPhasor: Aliasing phasor [0.0, 1.0) */
typedef struct _tPhasor
{
    float phase;
    float inc,freq;
    
} tPhasor;

void        tPhasor_init        (tPhasor*  const);
void        tPhasor_free        (tPhasor*  const);

float       tPhasor_tick        (tPhasor*  const);
int         tPhasor_setFreq     (tPhasor*  const, float freq);

// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

/* tCycle: Cycle/Sine waveform. Wavetable synthesis.*/
typedef struct _tCycle
{
    // Underlying phasor
    float phase;
    float inc,freq;
    
    int tsize;
    float* table;
} tCycle;

void        tCycle_init         (tCycle*  const);
void        tCycle_free         (tCycle*  const);

float       tCycle_tick         (tCycle*  const);
int         tCycle_setFreq      (tCycle*  const, float freq);
void        tCycle_setTableSize (tCycle*  const c, int size);

// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

/* tSawtooth: Anti-aliased Sawtooth waveform using wavetable interpolation. Wavetables constructed from sine components. */
typedef struct _tSawtooth
{
    // Underlying phasor
    float phase;
    float inc,freq;
    
    int tsize;
    
    float* table[NUM_TABLES];
    
} tSawtooth;

void        tSawtooth_init          (tSawtooth*  const);
void        tSawtooth_free          (tSawtooth*  const);

float       tSawtooth_tick          (tSawtooth*  const);
int         tSawtooth_setFreq       (tSawtooth*  const, float freq);
void        tSawtooth_setTableSize  (tSawtooth*  const c, int size);

// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

/* tTriangle: Anti-aliased Triangle waveform using wavetable interpolation. Wavetables constructed from sine components. */
typedef struct _tTriangle
{
    // Underlying phasor
    float phase;
    float inc,freq;
    
    int tsize;
    
    float* table[NUM_TABLES];
    
} tTriangle;

void        tTriangle_init          (tTriangle*  const);
void        tTriangle_free          (tTriangle*  const);

float       tTriangle_tick          (tTriangle*  const);
int         tTriangle_setFreq       (tTriangle*  const, float freq);
void        tTriangle_setTableSize  (tTriangle*  const c, int size);

// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

/* tSquare: Anti-aliased Square waveform using wavetable interpolation. Wavetables constructed from sine components. */
typedef struct _tSquare
{
    // Underlying phasor
    float phase;
    float inc,freq;
    
    int tsize;
    
    float* table[NUM_TABLES];
    
} tSquare;

void        tSquare_init            (tSquare*  const);
void        tSquare_free            (tSquare*  const);

float       tSquare_tick            (tSquare*  const);
int         tSquare_setFreq         (tSquare*  const, float freq);
void        tSquare_setTableSize    (tSquare*  const c, int size);

// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

/* tNoise. WhiteNoise, PinkNoise. */
typedef enum NoiseType
{
    WhiteNoise=0,
    PinkNoise,
    NoiseTypeNil,
} NoiseType;

typedef struct _tNoise
{
    NoiseType type;
    float pinkb0, pinkb1, pinkb2;
    float(*rand)();
    
} tNoise;

void        tNoise_init          (tNoise* const, NoiseType type);
void        tNoise_free          (tNoise* const);

float       tNoise_tick          (tNoise*  const);

// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

#endif  // LEAFOSCILLATOR_H_INCLUDED