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//=========================================================
// MusE
// Linux Music Editor
// $Id: midifile.h,v 1.3 2004/01/04 18:24:43 wschweer Exp $
//
// (C) Copyright 1999-2004 Werner Schweer (ws@seh.de)
//
// 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; 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=========================================================
#ifndef __MIDIFILE_H__
#define __MIDIFILE_H__
#include <stdio.h>
#include <list>
#include "globaldefs.h"
#include "mpevent.h"
struct MPEventList;
class MidiPlayEvent;
//---------------------------------------------------------
// MidiFileTrack
//---------------------------------------------------------
struct MidiFileTrack {
MPEventList events;
bool isDrumTrack;
MidiFileTrack() {
isDrumTrack = false;
}
};
typedef std::list<MidiFileTrack*> MidiFileTrackList;
typedef MidiFileTrackList::iterator iMidiFileTrack;
typedef MidiFileTrackList::const_iterator ciMidiFileTrack;
//---------------------------------------------------------
// MidiFile
//---------------------------------------------------------
class MidiFile {
int _error;
int format; // smf file format
int ntracks; // number of midi tracks
int _division;
MType _mtype;
MidiFileTrackList* _tracks;
int status, click;
int sstatus;
int lastport, lastchannel;
FILE* fp;
int curPos;
bool read(void*, size_t);
bool write(const void*, size_t);
void put(unsigned char c) { write(&c, 1); }
bool skip(size_t);
int readShort();
bool writeShort(int);
int readLong();
bool writeLong(int);
int getvl();
void putvl(unsigned);
bool readTrack(MidiFileTrack*);
bool writeTrack(const MidiFileTrack*);
int readEvent(MidiPlayEvent*, MidiFileTrack*);
void writeEvent(const MidiPlayEvent*);
public:
MidiFile(FILE* f);
~MidiFile();
bool read();
bool write();
QString error();
MidiFileTrackList* trackList() { return _tracks; }
int tracks() const { return ntracks; }
void setTrackList(MidiFileTrackList* tr, int n) {
_tracks = tr;
ntracks = n;
}
void setDivision(int d) { _division = d; }
int division() const { return _division; }
void setMType(MType t) { _mtype = t; }
MType mtype() const { return _mtype; }
};
#define XCHG_SHORT(x) ((((x)&0xFF)<<8) | (((x)>>8)&0xFF))
#ifdef __i486__
#define XCHG_LONG(x) \
({ int __value; \
asm ("bswap %1; movl %1,%0" : "=g" (__value) : "r" (x)); \
__value; })
#else
#define XCHG_LONG(x) ((((x)&0xFF)<<24) | \
(((x)&0xFF00)<<8) | \
(((x)&0xFF0000)>>8) | \
(((x)>>24)&0xFF))
#endif
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define BE_SHORT(x) XCHG_SHORT(x)
#define BE_LONG(x) XCHG_LONG(x)
#else
#define BE_SHORT(x) x
#define BE_LONG(x) x
#endif
#endif
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