Class Synth

Main.cpp:129–266

Synthesizer class to inherit Windows Audio.

//Synthesizer class to inherit Windows Audio.
class Synth : public WinAudio {
public:
  bool audio_reset;
  bool audio_pause;
  double volume;
  double play_x, play_y;
  double play_cx, play_cy;
  double play_nx, play_ny;
  double play_px, play_py;

  Synth(HWND hwnd) : WinAudio(hwnd, sample_rate) {
    audio_reset = true;
    audio_pause = false;
    volume = 8000.0;
    play_x = 0.0;
    play_y = 0.0;
    play_cx = 0.0;
    play_cy = 0.0;
    play_nx = 0.0;
    play_ny = 0.0;
    play_px = 0.0;
    play_py = 0.0;
  }

  void SetPoint(double x, double y) {
    play_nx = x;
    play_ny = y;
    audio_reset = true;
    audio_pause = false;
  }

  virtual bool onGetData(Chunk& data) override {
    //Setup the chunk info
    data.samples = m_samples;
    data.sampleCount = AUDIO_BUFF_SIZE;
    memset(m_samples, 0, sizeof(m_samples));

    //Check if audio needs to reset
    if (audio_reset) {
      m_audio_time = 0;
      play_cx = (jx < 1e8 ? jx : play_nx);
      play_cy = (jy < 1e8 ? jy : play_ny);
      play_x = play_nx;
      play_y = play_ny;
      play_px = play_nx;
      play_py = play_ny;
      mean_x = play_nx;
      mean_y = play_ny;
      volume = 8000.0;
      audio_reset = false;
    }

    //Check if paused
    if (audio_pause) {
      return true;
    }

    //Generate the tones