luts.h

#ifndef LUTs_h
#define LUTs_h

#include <MultiMap.h>

// Lookup Table for Pitch Knob
float pitch_knob_lookup_x[] = {0.0, 0.0025, 0.0175, 0.0225, 0.0375, 0.0425, 0.057499999999999996, 0.0625, 0.0775, 0.0825, 0.0975, 0.10250000000000001, 0.1175, 0.1225, 0.1375, 0.14250000000000002, 0.1575, 0.1625, 0.1975, 0.2025, 0.2475, 0.2525, 0.2975, 0.3025, 0.3775, 0.3825, 0.4175, 0.4225, 0.4575, 0.4625, 0.4975, 0.5025, 0.5375000000000001, 0.5425, 0.5775000000000001, 0.5825, 0.6175, 0.6224999999999999, 0.6975, 0.7024999999999999, 0.7475, 0.7525, 0.7975000000000001, 0.8025, 0.8375, 0.8424999999999999, 0.8575, 0.8624999999999999, 0.8775000000000001, 0.8825, 0.8975000000000001, 0.9025, 0.9175000000000001, 0.9225, 0.9375, 0.9424999999999999, 0.9575, 0.9624999999999999, 0.9775, 0.9824999999999999, 0.9975, 1.0};
float pitch_knob_lookup_y[] = {-1.0, -1.0, -0.9, -0.9, -0.8, -0.8, -0.7, -0.7, -0.6, -0.6, -0.5, -0.5, -0.4, -0.4, -0.3, -0.3, -0.2, -0.2, -0.1, -0.1, -0.05, -0.05, -0.025, -0.025, -0.0125, -0.0125, -0.00625, -0.00625, -0.003125, -0.003125, 0.0, 0.0, 0.003125, 0.003125, 0.00625, 0.00625, 0.0125, 0.0125, 0.025, 0.025, 0.05, 0.05, 0.1, 0.1, 0.2, 0.2, 0.3, 0.3, 0.4, 0.4, 0.5, 0.5, 0.6, 0.6, 0.7, 0.7, 0.8, 0.8, 0.9, 0.9, 1.0, 1.0};
size_t pitch_knob_lookup_length = 62;


class Easer {
  float output = 0.0f;
  float delta = 0.0f;
  float easing = 0.1f;
  public:
    Easer();
    
    float Process(float input) {
      delta = input - output;
      output += delta * easing;
      return output;
    }

    void setFactor(float factor) {
      easing = min(max(0.00001f, factor), 1.0f);
    }
};

Easer::Easer() {

};

float lerp(float a, float b, float f) {
  f = min(1.0f, max(0.0f, f));

  if (f == 0.0) { return a; }
  else if (f == 1.0f) { return b; }
  else { return a * (1.0f-f) + b * f; }
}

float get_from_xy_table(float* xtable, float* ytable, float f, size_t length) {
  return multiMap<float>(f, xtable, ytable, length);
}


#endif