text: // MIT License
  
  // Copyright (c) 2017 Vadim Grigoruk @nesbox // grigoruk@gmail.com
  
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  
  // The above copyright notice and this permission notice shall be included in all
  // copies or substantial portions of the Software.
  
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  // SOFTWARE.
  
  #pragma once
  
  #include "studio.h"
  
  typedef struct Music Music;
  
  struct Music
  {
      tic_mem* tic;
      tic_music* src;
  
      u8 track:MUSIC_TRACKS_BITS;
      s32 frame;
      s32 scroll;
      s32 note;
  
      bool beat34;
      bool follow;
      bool sustain;
      bool on[TIC_SOUND_CHANNELS];
  
      struct
      {
          s32 octave;
          s32 sfx;
      } last;
  
      struct
      {
          s32 col;
          tic_point edit;
  
          struct
          {
              tic_point start;
              tic_rect rect;
              bool drag;
          } select;
      } tracker;
  
      struct
      {
          s32 col;
          tic_point edit;
      } piano;
  
      enum
      {
          MUSIC_TRACKER_TAB,
          MUSIC_PIANO_TAB,
      } tab;
  
      u32 tickCounter;
  
      struct History* history;
      
      void(*tick)(Music*);
      void(*event)(Music*, StudioEvent);
  };
  
  void initMusic(Music*, tic_mem*, tic_music* src);
  void freeMusic(Music* music);
  