Subversion Repositories DIN Is Noise

/*

* keyboard_keyboard.h

* DIN Is Noise is copyright (c) 2006-2024 Jagannathan Sampath

* DIN Is Noise is released under GNU Public License 2.0

* For more information, please visit https://dinisnoise.org/

*/

#ifndef __keyboard_keyboard

#define __keyboard_keyboard

#include "ui.h"

#include "instrument.h"

#include "note.h"

#include "solver.h"

#include "play.h"

#include "multi_curve.h"

#include "curve_editor.h"

#include "listeners.h"

#include "random.h"

#include "color.h"

#include "triggered_note.h"

#include "curve_library.h"

#include <SDL/SDL.h>

struct key_info {

  Uint8 id; // from SDL

  // visual

  char ch; // character

  int x, y; // position

  float r, g, b; // color

  int attacked; // attacked?

  key_info (int i = -1, char c = '.', int a = 0) : id (i), ch (c), attacked (a) {r = g = b = 1;}

};

struct keyboard_keyboard : instrument, scale_listener {

  multi_curve wave; // waveform

  curve_editor waved; // waveform shape editor

  wave_listener wavlis; // waveform edit listener

  void update_waveform (multi_curve& crv);

  std::vector<note> notes; // notes of the scale 

  void setup_notes (int overwrite = 1);

  int num_triggered_notes;

  std::list <triggered_note> triggered_notes; // currently active notes

  int trig_what;

  void remove_finished_notes ();

  void attack_note (int ky);

  void decay_note (int ky);

  int render_audio (float* L, float* R);

  std::map <int, std::vector<key_info> > scale2keybd;

  static const int MAX_KEYS = 256; // assume no keycode exceeds 255

  int keybd2notes [MAX_KEYS];

  std::vector<key_info> keys;

  // attack & decay curve

  multi_curve attackcrv, decaycrv;

  curve_editor attacked, decayed;

  attack_listener attacklis;

  decay_listener decaylis;

  void update_attack ();

  void update_decay ();

  int handle_input ();

  // visual

  int pts[8]; // for opengl

  float recent_note_hz;

  int show_nearby_notes;

  // mouse based pitch bend

  //

  int last_mousex, last_mousey;

  int marker_x;

  void mouse_bend ();

  void calc_mouse_bend (triggered_note& ti);

  int turn_off_bend ();

  int pressx, hearx; // for the words Press and Hear (see draw ())

  int arm, ymarker, ychars, ynotes, spacing;

  void calc_visual_params ();

  void draw ();

  std::string fname;

  keyboard_keyboard ();

  ~keyboard_keyboard ();

  void setup ();

  help helptext;

  // MIDI

  //

  static const int MIDI_MAX = 128;

  static const int color_index [];

  note midi_notes [MIDI_MAX];

  void setup_midi_notes ();

  void note_on (unsigned char id, unsigned char vel);

  void note_off (unsigned char id);

  void pitch_bend (float v);

  // MIDI velocity curve

  multi_curve velcrv;

  velocity_listener vellis;

  curve_editor veled;

  curve_library vellib;

  solver velsol;

  void enter ();

  void bg ();

  void load_scale (int dummy = 0);

  void scale_changed ();

  void scale_loaded ();

  void tonic_changed ();

};

extern keyboard_keyboard keybd2;

extern float ATTACK_TIME;

extern float DECAY_TIME;

extern int PITCH_BEND;

extern float PITCH_BEND_PER_PIXEL;

extern float NOTE_VOLUME;

#endif