recomposer.h

一个很好的c++ midi解码算法,不依赖于任何平台.

/*
 *  srgplay - MIDI file player
 *  Copyright (C) 1998,1999 SAKAI Katsuya
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __RCM_FORMAT_H_
#define __RCM_FORMAT_H_

#include "queue.h"
#include "stack.h"

#define PLAY 0
#define MUTE 1
#define KEY_OFF  0x80

#define EV_NORMAL   0
#define EV_NOTE_OFF 1

class ComeOn_Header {
public:
  char Text[33];
  char Title[65];
  char Memo[361];
  u_int  Timebase;
  u_int  Tempo;
  u_char TimeSignature[2];
  u_char Key;
  signed char PlayBIAS;
  char CM6file[17];
  char GSDfile[17];
  char GSD2file[17];
  u_int NumOfTrack;
};

class ComeOn_RythmDef {
public:
  char Name[128][14] ;
  u_char Key[128];
  u_char GateTime[128];
};

class ComeOn_UserExclusiveDef {
public:
  char Memo[8][24];
  u_char Data[8][25];
};

class R36_Track {
public:
  R36_Track();
  virtual ~R36_Track();

  virtual int playaEvent();
  u_long tick() { return TotalStep; }
  void AllNoteOff();

  void init(ComeOn_Header *, ComeOn_UserExclusiveDef *, EventQueue *);
    
  u_short DataLength;
  u_char  Number;
  u_char  RythmFlag;
  u_char  Port;
  u_char  Channel;
  signed char Key_Bias;
  signed char ST_Bias;
  u_char  Mode;
  u_char  Comment[36];
  char    Mute;
  u_long  Index;
  u_char  *Data;

  signed char N_ON[128];
  u_char Version;  // 0:rcp,r36 1:g18,g36(dos) 2:g18,g36(win)

protected:
  ComeOn_Header *Header;
  ComeOn_UserExclusiveDef *Exclusive;
  EventQueue *Noff_Queue;

  u_long TotalStep;
  u_char SameMeasureFlag;
  u_long SameMeasurePtr;
  u_char RolandEx[11];
  u_char YamahaEx[9];
  Stack LoopStack;

  virtual void NextRecord();
  virtual int Vel();
  virtual int Step();
  virtual int Gate();
  
  virtual void NoteOn();
  void MeasureEnd();
  void MidiEvent1(u_char cmd);
  void MidiEvent2(u_char cmd);
  virtual void TrackExclusive();
  void UserExclusive(u_char num);
  void BankPGChange(u_char);
  void MidiChChange();
  virtual void TempoChange();
  virtual void CommentProc();
  void LoopEnd();
  void LoopStart();
  virtual void SameMeasure();
  //  virtual void EndofTrack();
  void YamahaBase();
  void YamahaPara();
  void YamahaDevice();
  //  virtual void YamahaXGPara();  // YamahaParaとどうちがうの々
  void RolandBase();
  void RolandPara();
  void RolandDevice();
  void KeyScan();
  void KeyChange();
  void UnknownEvent();    
};

class G36_Track : public R36_Track {
protected:
  virtual void NextRecord();
  virtual int Vel();
  virtual int Step();
  virtual int Gate();

  virtual void NoteOn();
  virtual void TrackExclusive();
  virtual void CommentProc();
  virtual void SameMeasure();
  virtual void TempoChange();
};

#endif