shithub: leaf

ref: 20802a8e9240feec34bdb80485380f8e0a572733
dir: /LEAF/Inc_cpp/leaf-wavetables.hpp/

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

    LEAFWavetables.h
    Created: 4 Dec 2016 9:42:41pm
    Author:  Michael R Mulshine

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

#ifndef WAVETABLES_H_INCLUDED
#define WAVETABLES_H_INCLUDED

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

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

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


#define SINE_TABLE_SIZE 2048
#define SAW_TABLE_SIZE 2048
#define SQR_TABLE_SIZE 2048
#define TRI_TABLE_SIZE 2048
#define EXP_DECAY_TABLE_SIZE 65536
#define ATTACK_DECAY_INC_TABLE_SIZE 65536
#define TANH1_TABLE_SIZE 65536
#define DECAY_COEFF_TABLE_SIZE 4096
#define MTOF1_TABLE_SIZE 4096
#define FILTERTAN_TABLE_SIZE 4096

typedef enum TableName
{
    T20 = 0,
    T40,
    T80,
    T160,
    T320,
    T640,
    T1280,
    T2560,
    T5120,
    T10240,
    T20480,
    TableNameNil
} TableName;

// mtof lookup table based on input range [0.0,1.0) in 4096 increments - midi frequency values scaled between m25 and m134 (as done in previous code)

extern const float exp_decay[EXP_DECAY_TABLE_SIZE];
extern const float attack_decay_inc[ATTACK_DECAY_INC_TABLE_SIZE];

extern const float filtertan[FILTERTAN_TABLE_SIZE];

extern const float mtof1[MTOF1_TABLE_SIZE];
extern const float decayCoeffTable[DECAY_COEFF_TABLE_SIZE];

extern const float tanh1[TANH1_TABLE_SIZE];

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

/* Sine wave table ripped from http://aquaticus.info/pwm-sine-wave. */
extern const float sinewave[SINE_TABLE_SIZE];

extern const float sawtooth[11][SAW_TABLE_SIZE];

extern const float triangle[11][TRI_TABLE_SIZE];

extern const float squarewave[11][SQR_TABLE_SIZE];

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

#endif  // WAVETABLES_H_INCLUDED