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OPL/dro2midi/midiio.hpp
bruce f742d2f561 Original DRO2MIDI 1.5 code.
2013-11-14 20:08:45 +08:00

402 lines
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#ifndef __MIDIIO__
#define __MIDIIO__
#include <stdio.h>
#ifndef MIDI_BUFSIZE
#define MIDI_BUFSIZE 1024
#endif
// opening modes of a midi file
#define WRITE_BINARY "wb"
#define READ_BINARY "rb"
const unsigned long MThd = 0x4D546864ul;
const unsigned long MTrk = 0x4D54726Bul;
// different standard midi formats
#define VERSION_MULTICHANNEL 0
#define VERSION_SINGLECHANNEL 1
#define VERSION_MULTISONG 2
#define OPTION_NOCONTROLS 1 // no control details but general information
#define OPTION_NOEVENTS 2 // no track events at all
#define OPTION_NOMETAEVENTS 4 // no meta details but general information
#define OPTION_NOSYSEVENTS 8 // no sysex details but general information
#define OPTION_NONOTEEVENTS 16 // no note events (8x or 9x)
#define OPTION_NOPOLYEVENTS 32 // no poly aftertouch events (Ax)
#define OPTION_NOCONTROLEVENTS 64 // no control events at all (Bx)
#define OPTION_NOPROGRAMEVENTS 128 // no program change events (Cx)
#define OPTION_NOAFTERTOUCHEVENTS 256 // no aftertouch events (Dx)
#define OPTION_NOPITCHBENDEVENTS 512 // no pitchbend events (Ex)
#define OPTION_NOREALTIMEEVENTS 1024 // no realtime events (Fx)
// getchannel delivers a valid channel or:
#define NOCHANNEL (-1)
#define MULTICHANNEL (-2)
#define VALIDCHANNEL(ch) ((ch) >= 0 && (ch) <= 15)
#define gm_drumchannel 9
#define SAYCHANNEL(ch) ((ch) + 1) // 0..15 in midi format but spoken 1..16!
// for use of param what in function text()
#define meta_text 1
#define meta_copyright 2
#define meta_trackname 3
#define meta_instrument 4
#define meta_lyric 5
#define meta_marker 6
#define meta_cuepoint 7
#define meta_endtrack 0x2f
#define ctrl_highbank 0
#define ctrl_wheel 1
#define ctrl_breath 2
#define ctrl_foot 4
#define ctrl_portamentotime 5
#define ctrl_data 6
#define ctrl_volume 7
#define ctrl_balance 10
#define ctrl_expression 11
#define ctrl_lowbank 32
#define ctrl_hold 64
#define ctrl_reverb 91
#define ctrl_chorus 93
#define ctrl_datainc 96
#define ctrl_datadec 97
#define ctrl_lowrpn 100
#define ctrl_highrpn 101
#define ctrl_resetctrlrs 121
#define ctrl_allnotesoff 123
#define balance_left 0
#define balance_center 64
#define balance_right 127
#define volume_mute 0
#define volume_full 127
#define bpm(ticks) (60000000.0 / (ticks))
#define ticks(beats) ((unsigned long)(60000000.0 / (beats)))
#define tempo_60bpm (1000000L)
#define tempo_120bpm (500000L)
#define tempo_240bpm (250000L)
class MidiRead
{
public:
static const char* copyright();
MidiRead(const char* filename, FILE* f = 0);
virtual ~MidiRead();
FILE* getf();
int run();
int runhead();
int runtrack(int trackno);
int runevent(long trackend);
long getpos() { return pos_; }
long geteventpos() { return pos_; }
long getcurpos() { return curpos_; }
unsigned long getcurtime() { return curtime_; } // in midi units
virtual void head(unsigned version, unsigned tracks, unsigned clicksperquarter);
virtual void track(int trackno, long length, int channel);
virtual void endtrack(int trackno); // closing track
virtual void time(unsigned long ticks); // delay between events
virtual void event(int what, int len = 0, unsigned char* data = 0);
// these are event categories:
virtual void meta(int what, int len, const unsigned char* data);
// these are special meta events:
virtual void text(int what, int len, const char* whattext, const unsigned char* txt);
virtual void end(); // end of track command
virtual void prefixchannel(unsigned char channel);
virtual void prefixport(unsigned char port);
virtual void seqnumber(unsigned int seqno);
virtual void smpteofs(int hour, int min, int sec, int frame, int fracframe);
virtual void tact(int nom, int denom, int clicksperbeat, int notes32perbeat);
virtual void tempo(unsigned long microsecperbeat);
virtual void key(int signature, int isminor); // C=0, -7=7flats +7=7sharps
virtual void program(int channel, int prg);
virtual void control(int channel, int what, int val); // general controls
// special controls:
virtual void highbank(int channel, int val);
virtual void wheel(int channel, int val);
virtual void breath(int channel, int val);
virtual void foot(int channel, int val);
virtual void portamentotime(int channel, int val);
virtual void data(int channel, int val);
virtual void volume(int channel, int val);
virtual void balance(int channel, int val);
virtual void expression(int channel, int val);
virtual void lowbank(int channel, int val);
virtual void hold(int channel, int val);
virtual void reverb(int channel, int val);
virtual void chorus(int channel, int val);
virtual void datainc(int channel, int val);
virtual void datadec(int channel, int val);
virtual void lowrpn(int channel, int val);
virtual void highrpn(int channel, int val);
virtual void resetctrlrs(int channel, int val);
virtual void allnotesoff(int channel, int val);
virtual void pitchbendrange(int channel, int val);
virtual void noteon(int channel, int note, int vel);
virtual void noteoff(int channel, int note, int vel);
virtual void pitchbend(int channel, int val);
virtual void polyaftertouch(int channel, int note, int val);
virtual void aftertouch(int channel, int val);
virtual void songpos(unsigned pos);
virtual void songselect(unsigned char song);
virtual void tunerequest();
virtual void timingclock();
virtual void start();
virtual void cont();
virtual void stop();
virtual void activesense();
virtual void sysex(int syslen, const unsigned char* sysdata);
// these are special sysex events:
virtual void xgreset();
virtual void gmreset();
virtual void gsreset();
virtual void gsexit();
virtual void endmidi(); // after last track
virtual void error(const char* msg);
virtual void warning(const char* msg);
virtual void percent(int perc);
int getchannel() { return curchannel_; }
void setchannel(int channel);
static const char* progname(int n, int channel);
static const char* notename(unsigned char note);
int options_;
int version_, tracks_, clicks_, trackno_;
void seek(long pos);
int getbyte();
unsigned getword();
unsigned long gettri();
unsigned long getlong();
unsigned long getdelta();
unsigned char* get(int len);
unsigned char* need(int nbytes);
unsigned long microsec(unsigned long units, unsigned long msperbeats);
long units(unsigned long microsec, unsigned long msperbeats);
// use scanchannel only at start of track!
int scanchannel(unsigned long maxlen); // channel 0-15 or -1=no channel or -2=multichannels
// use sysevent only directly after reading F0 or F7
int scansysevent(unsigned long maxlen);
protected:
const char *midiname_;
FILE* f_;
unsigned char shouldclose_; // 0=no, otherwise=yes
long filesize_;
unsigned char buf_[MIDI_BUFSIZE];
int buflen_, bufpos_;
int curchannel_;
unsigned long curtime_;
int percent_;
int lastcode_;
unsigned long tracklen_;
long pos_, curpos_;
unsigned char curdeltalen_; // number of bytes read by recent getdelta() call
};
class MidiWrite
{
public:
static const char* copyright();
MidiWrite(const char* filename);
virtual ~MidiWrite();
FILE* getf();
long getcurpos() { return curpos_; }
long getcurtime() { return curtime_; }
void cleardelta();
void head(int version = 1, int tracks = 0, unsigned clicksperquarter = 192);
void track();
void endtrack();
void event(int what, int len, const unsigned char* data);
void text(int what, int len, const unsigned char* txt);
void meta(int what, int len, const unsigned char* data); // 0xff ....
virtual void prefixchannel(unsigned char channel);
virtual void prefixport(unsigned char port);
virtual void seqnumber(unsigned int seqno);
virtual void smpteofs(int hour, int min, int sec, int frame, int fracframe);
virtual void key(int signature, int isminor);
void tact(int nom, int denom, int v1, int v2);
void tempo(unsigned long microsecperbeat);
void end();
void program(int channel, int prg);
void control(int channel, int what, int val);
// these are special controls
void highbank(int channel, int val);
void wheel(int channel, int val);
void breath(int channel, int val);
void foot(int channel, int val);
void portamentotime(int channel, int val);
void data(int channel, int val);
void volume(int channel, int val);
void balance(int channel, int val);
void expression(int channel, int val);
void lowbank(int channel, int val);
void hold(int channel, int val);
void reverb(int channel, int val);
void chorus(int channel, int val);
void datainc(int channel, int val);
void datadec(int channel, int val);
void lowrpn(int channel, int val);
void highrpn(int channel, int val);
void resetctrlrs(int channel, int val);
void allnotesoff(int channel, int val);
void pitchbendrange(int channel, int halfnotes);
void noteon(int channel, int note, int vel);
void noteoff(int channel, int note, int vel = 0);
void time(unsigned long ticks);
void pitchbend(int channel, int val);
void polyaftertouch(int channel, int note, int val);
void aftertouch(int channel, int val);
void songpos(unsigned pos);
void songselect(unsigned char song);
void tunerequest();
void timingclock();
void start();
void cont();
void stop();
void activesense();
void sysex(int syslen, const unsigned char* sysdata);
void xgreset();
void gmreset();
void gsreset();
void gsexit();
void putbyte(unsigned char val);
void putcode(unsigned char code);
void putword(unsigned val);
void puttri(unsigned long val);
void putlong(unsigned long val);
void putdelta(unsigned long val);
void puttime();
void put(int len, const unsigned char* c);
void seek(long pos);
virtual void error(const char* msg);
virtual void warning(const char* msg);
int unitsperquarter();
protected:
const char *midiname_;
FILE* f_;
long trackpos_, curpos_, filesize_;
int trackchannel_, trackcount_, lastcode_, endtrack_;
unsigned char buf_[MIDI_BUFSIZE];
int bufpos_, buflen_;
unsigned long curdelta_;
unsigned long curtime_;
int clicks_;
void flush();
};
class MidiCopy : public MidiRead
{
public:
MidiCopy(const char* filename, FILE* f = 0);
void setoutput(MidiWrite* dest);
void stopoutput();
MidiWrite* getoutput();
void mapchannel(int channel, int newchannel);
void ignorechannel(int channel);
virtual void head(unsigned version, unsigned tracks, unsigned clicksperquarter);
virtual void track(int trackno, long length, int channel);
virtual void endtrack(int trackno);
virtual void time(unsigned long ticks);
virtual void event(int what, int len = 0, unsigned char* data = 0);
virtual void meta(int what, int len, unsigned char* data);
virtual void text(int what, int len, char* whattext, unsigned char* txt);
virtual void end();
virtual void prefixchannel(unsigned char channel);
virtual void prefixport(unsigned char port);
virtual void seqnumber(unsigned int seqno);
virtual void smpteofs(int hour, int min, int sec, int frame, int fracframe);
virtual void tact(int nom, int denom, int clicksperbeat, int notes32perbeat);
virtual void tempo(unsigned long microsecperbeat);
virtual void key(int signature, int isminor); // C=0, -7=7flats +7=7sharps
virtual void program(int channel, int prg);
virtual void control(int channel, int what, int val);
virtual void highbank(int channel, int val);
virtual void wheel(int channel, int val);
virtual void breath(int channel, int val);
virtual void foot(int channel, int val);
virtual void portamentotime(int channel, int val);
virtual void data(int channel, int val);
virtual void volume(int channel, int val);
virtual void balance(int channel, int val);
virtual void expression(int channel, int val);
virtual void lowbank(int channel, int val);
virtual void hold(int channel, int val);
virtual void reverb(int channel, int val);
virtual void chorus(int channel, int val);
virtual void datainc(int channel, int val);
virtual void datadec(int channel, int val);
virtual void lowrpn(int channel, int val);
virtual void highrpn(int channel, int val);
virtual void resetctrlrs(int channel, int val);
virtual void allnotesoff(int channel, int val);
virtual void noteon(int channel, int note, int vel);
virtual void noteoff(int channel, int note, int vel);
virtual void pitchbend(int channel, int val);
virtual void polyaftertouch(int channel, int note, int val);
virtual void aftertouch(int channel, int val);
virtual void songpos(unsigned pos);
virtual void songselect(unsigned char song);
virtual void tunerequest();
virtual void timingclock();
virtual void start();
virtual void cont();
virtual void stop();
virtual void activesense();
virtual void sysex(int syslen, unsigned char* sysdata);
virtual void gmreset();
virtual void gsreset();
virtual void gsexit();
virtual void xgreset();
protected:
MidiWrite* dest_;
int mapchannel_[16]; // channel 0-15 or events are ignored for invalid channel
};
#endif
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