Subversion Repositories DIN Is Noise

/*
* binaural_drones.h
* DIN Is Noise is copyright (c) 2006-2025 Jagannathan Sampath
* DIN Is Noise is released under GNU Public License 2.0
* For more information, please visit https://dinisnoise.org/
*/

#ifndef __BINAURAL_DRONES__
#define __BINAURAL_DRONES__

#include <vector>
#include "binaural_drone.h"
#include "ui.h"
#include "instrument.h"
#include "curve_editor.h"
#include "help.h"

struct fade_info {
  std::string name;
  int active;
  int after;
  solver sol;
  float xt, dxt;
  float xu, xui;
  float duration;

  fade_info ();
  void start (const std::string& _name = "op");
  int eval (float* out);
  void set_duration (float t);
  void complete ();
  void abort ();

};

struct i_binaural_drones;
struct waveform_listener : curve_listener {
  i_binaural_drones* sb;
  void edited (curve_editor* ed, int i);
};

struct i_binaural_drones : instrument {

  std::vector<binaural_drone*> binaural_drones;
  int num_binaural_drones;

  multi_curve wav; // waveform shared by all binaural drones
  curve_editor waved; // waveform editor
  waveform_listener wavlis; // waveform edit listener

  // binaural drone fading
  multi_curve fdrcrv; // fading curve
  fade_info pitch_fader, vol_fader;

  float master_volume; // split among all binaural drones

  float modulation_amount;

  float starting_pitch; // starting pitch from where binaural drones are made
  float separation; // in hz between l and r of a binaural drone
  int pairs; // number of binaural drones
  float spacing; // inter drone spacing

  enum {START_PITCH=0, FROM_SCALE};
  int keynote;
  int close_octave; // close octave when making binaural drones on notes of scale?
  int change_key_note (int dir);
  int resize_separation;

  // justification
  int just;

  help hlp;

  i_binaural_drones ();
  ~i_binaural_drones ();

  int add (float _lhz, float _rhz, float _vol, int just, float sep, float lx = 0, float rx = 0);
  void remove (int w);
  void sync (int n, const std::string& lst);
  void list ();
  void load ();
  void save ();
  void update_players (multi_curve& mx);
  int handle_input ();
  int change_justification (int dir);
  int render_audio (float* L, float* R);
  void enter ();

  int abort;
  int busy ();
  int aborted ();

  std::string get_sel_vol ();

};

extern i_binaural_drones binaural_drones0;

#endif