player.h

/*  player.h  - class MidiPlayer. Plays a set of tracks
    This file is part of LibKMid 0.9.5
    Copyright (C) 1997,98,99,2000  Antonio Larrosa Jimenez
    LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libtdemid.html
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library 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
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.                                                  
 
    Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
 
***************************************************************************/
#ifndef _PLAYER_H
#define _PLAYER_H
 
#include <libtdemid/dattypes.h>
#include <libtdemid/midfile.h>
#include <libtdemid/deviceman.h>
#include <libtdemid/track.h>
#include <libtdemid/notearray.h>
#include <tdemacros.h>
 
struct SpecialEvent
{
  int id;
 
  ulong diffmilliseconds;
 
  ulong absmilliseconds;
 
  int ticks;
 
  int type;
 
  char text[1024];
 
  ulong tempo;
  int num;
  int den;
 
  struct SpecialEvent *next;
 
};
 
 
struct PlayerController
{
  volatile ulong  ticksTotal;
  volatile ulong  ticksPlayed;
  volatile double millisecsPlayed;
  volatile ulong  beginmillisec;
 
  volatile int tempo;
  volatile int num;
  volatile int den;
 
  volatile int SPEVprocessed;
  volatile int SPEVplayed;
 
  volatile int OK; 
 
  volatile int playing;
 
  volatile int paused;
 
  volatile int moving;
 
  volatile int finished;
 
  volatile int message TDE_DEPRECATED; // set one of the following :
 
#define PLAYER_DOPAUSE  1
#define PLAYER_DOSTOP   2
#define PLAYER_SETPOS   4
#define PLAYER_HALT 8
 
  volatile ulong gotomsec; //milliseconds to go to,if player_setpos is set
 
  volatile int error;
 
  volatile int gm;
 
  volatile int volumepercentage ; 
 
  volatile bool forcepgm[16];
 
  volatile int pgm[16];
 
  volatile double ratioTempo;
 
  volatile bool isSendingAllNotesOff;
 
  volatile MidiEvent *ev;
};
 
 
class KMID_EXPORT MidiPlayer
{
  class MidiPlayerPrivate;
  MidiPlayerPrivate *d;
 
  DeviceManager *midi;
  MidiFileInfo *info;
  MidiTrack **tracks;
  SpecialEvent *spev;
  NoteArray *na;
 
  int songLoaded;
 
  PlayerController *ctl;
 
  bool parsesong;
  bool generatebeats;
 
  void removeSpecialEvents(void);
  void parseSpecialEvents(void);
  void insertBeat(SpecialEvent *ev,ulong ms,int num,int den);
  void generateBeats(void);
 
  //NoteArray *parseNotes(void);
  void debugSpecialEvents(void);
  public:
 
  MidiPlayer(DeviceManager *midi_,PlayerController *pctl);
 
  ~MidiPlayer();
 
  int loadSong(const char *filename);
 
  void removeSong(void); 
 
  int isSongLoaded(void) { return songLoaded; }
 
  SpecialEvent *specialEvents() { return spev; }
 
  NoteArray *noteArray(void) { return na; }
 
 
  void play(bool calloutput=false,void output(void) = 0);
 
  void setParseSong(bool b = true);
 
  void setGenerateBeats(bool b = false);
 
  MidiFileInfo *information(void) { return info; }
 
  void setPos(ulong gotomsec, class MidiStatus *midistat);
 
  void setTempoRatio(double ratio);
 
};
 
#endif