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//
// Copyright 1999-2000 by Craig Stuart Sapp, All Rights Reserved.
// Programmer: Craig Stuart Sapp <craig@ccrma.stanford.edu>
// Creation Date: Fri Nov 26 14:12:01 PST 1999
// Last Modified: Fri Dec 2 13:26:44 PST 1999
// Last Modified: Fri Nov 10 12:13:15 PST 2000 (added some more editing cap.)
// Last Modified: Thu Jan 10 10:03:39 PST 2002 (added allocateEvents())
// Last Modified: Mon Jun 10 22:43:10 PDT 2002 (added clear())
// Filename: ...sig/include/sigInfo/MidiFile.h
// Web Address: http://sig.sapp.org/include/sigInfo/MidiFile.h
// Syntax: C++
//
// Description: A class which can read/write Standard MIDI files.
// MIDI data is stored by track in an array. This
// class is used for example in the MidiPerform class.
//
#ifndef _MIDIfILE_H_INCLUDED
#define _MIDIfILE_H_INCLUDED
#include "FileIO.h"
#include "Array.h"
#include "Collection.h"
typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned long ulong;
#define TIME_STATE_DELTA 0
#define TIME_STATE_ABSOLUTE 1
#define TRACK_STATE_SPLIT 0
#define TRACK_STATE_JOINED 1
class _MFEvent {
public:
_MFEvent (void);
_MFEvent (int command);
_MFEvent (int command, int param1);
_MFEvent (int command, int param1, int param2);
_MFEvent (int track, int command, int param1, int param2);
_MFEvent (int aTime, int aTrack, int command, int param1, int param2);
~_MFEvent ();
int time;
int track;
Array<uchar> data;
};
class MidiFile {
public:
MidiFile (void);
MidiFile (char* aFile);
~MidiFile ();
void absoluteTime (void);
int addEvent (int aTrack, int aTime,
Array<uchar>& midiData);
int addTrack (void);
int addTrack (int count);
void allocateEvents (int track, int aSize);
void deltaTime (void);
void deleteTrack (int aTrack);
void erase (void);
void clear (void);
_MFEvent& getEvent (int aTrack, int anIndex);
int getTimeState (void);
int getTrackState (void);
int getTicksPerQuarterNote (void);
int getTrackCount (void);
int getNumTracks (void);
int getNumEvents (int aTrack);
void joinTracks (void);
void mergeTracks (int aTrack1, int aTrack2);
int read (char* aFile);
void setTicksPerQuarterNote (int ticks);
void sortTrack (Collection<_MFEvent>& trackData);
void sortTracks (void);
void splitTracks (void);
int write (const char* aFile);
protected:
Collection<Collection<_MFEvent>*> events; // midi file events
int ticksPerQuarterNote; // time base of file
int trackCount; // # of tracks in file
int theTrackState; // joined or split
int theTimeState; // absolute or delta
char* readFileName; // read file name
private:
void extractMidiData (FileIO& inputfile, Array<uchar>& array,
uchar& runningCommand);
ulong extractVlvTime (FileIO& inputfile);
ulong unpackVLV (uchar a, uchar b, uchar c, uchar d, uchar e);
void writeVLValue (long aValue, Array<uchar>& data);
};
int eventcompare(const void* a, const void* b);
std::ostream& operator<<(std::ostream& out, MidiFile& aMidiFile);
#endif /* _MIDIfILE_H_INCLUDED */
// md5sum: ff46e64698e2d9e88ebeef3efa9927d0 - MidiFile.h =css= 20030102
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