src/mdaPianoVoice.h

   1 #ifndef MDA_PIANO_VOICE_H
   2 #define MDA_PIANO_VOICE_H
   3
   4 #include "mdaPianoCommon.h"
   5 #include "mdaPiano.peg"
   6
   7 #pragma GCC system_header
   8 #include <lv2synth.hpp>
   9
  10 enum Param {
  11   Default,
  12   Current
  13 };
  14
  15 class mdaPianoVoice : public LV2::Voice {
  16   private:
  17     float Fs, iFs;
  18
  19     /// global internal variables
  20     KGRP  *kgrp;
  21     short *waves;
  22     float default_preset[NPARAMS]; // contains the default preset
  23     short sustain;
  24     float volume, muff;
  25
  26     // voice state
  27     uint32_t  delta;  //sample playback
  28     uint32_t  frac;
  29     uint32_t  pos;
  30     uint32_t  end;
  31     uint32_t  loop;
  32
  33     float env;  //envelope
  34     float dec;
  35
  36     float f0;   //first-order LPF
  37     float f1;
  38     float ff;
  39
  40     float outl;
  41     float outr;
  42     uint32_t  note; //remember what note triggered this
  43     // end of voice state
  44
  45   protected:
  46     unsigned char m_key;
  47
  48   public:
  49     mdaPianoVoice(double, short*, KGRP*);
  50     void set_volume(float v) { volume = v; }
  51     void set_muff(float v) { muff = v; }
  52
  53     float p_helper(unsigned short, Param);
  54     void update(Param); // recalculates internal variables
  55     void on(unsigned char key, unsigned char velocity);
  56     void reset(void);
  57     unsigned char get_key(void) const { return m_key; }
  58 };
  59
  60 #endif