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event.cpp
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event.cpp
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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2008-2011 Werner Schweer
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#include "libmscore/xml.h"
#include "libmscore/note.h"
#include "libmscore/sig.h"
#include "event.h"
namespace Ms {
//---------------------------------------------------------
// MidiCoreEvent::write
//---------------------------------------------------------
void MidiCoreEvent::write(XmlWriter& xml) const
{
switch(_type) {
case ME_NOTEON:
xml.tagE(QString("note-on channel=\"%1\" pitch=\"%2\" velo=\"%3\"")
.arg(_channel).arg(_a).arg(_b));
break;
case ME_NOTEOFF:
xml.tagE(QString("note-off channel=\"%1\" pitch=\"%2\" velo=\"%3\"")
.arg(_channel).arg(_a).arg(_b));
break;
case ME_CONTROLLER:
if (_a == CTRL_PROGRAM) {
if (_channel == 0) {
xml.tagE(QString("program value=\"%1\"").arg(_b));
}
else {
xml.tagE(QString("program channel=\"%1\" value=\"%2\"")
.arg(channel()).arg(_b));
}
}
else {
if (channel() == 0) {
xml.tagE(QString("controller ctrl=\"%1\" value=\"%2\"")
.arg(_a).arg(_b));
}
else {
xml.tagE(QString("controller channel=\"%1\" ctrl=\"%2\" value=\"%3\"")
.arg(channel()).arg(_a).arg(_b));
}
}
break;
default:
qDebug("MidiCoreEvent::write: unknown type");
break;
}
}
//---------------------------------------------------------
// Event::Event
//---------------------------------------------------------
Event::Event()
{
_type = 0;
_ontime = -1;
_noquantOntime = 0;
_noquantDuration = 0;
_channel = 0;
_a = 0;
_b = 0;
_duration = 0;
_tpc = 0;
_voice = 0;
_edata = 0;
_len = 0;
_metaType = 0;
_note = 0;
_tuning = 0.0;
}
Event::Event(int t)
{
_type = t;
_ontime = -1;
_noquantOntime = 0;
_noquantDuration = 0;
_channel = 0;
_a = 0;
_b = 0;
_duration = 0;
_tpc = 0;
_voice = 0;
_edata = 0;
_len = 0;
_metaType = 0;
_note = 0;
_tuning = 0.0;
}
Event::Event(const Event& e)
: PlayEvent(e)
{
_type = e._type;
_ontime = e._ontime;
_noquantOntime = e._noquantOntime;
_noquantDuration = e._noquantDuration;
_channel = e._channel;
_a = e._a;
_b = e._b;
_duration = e._duration;
_tpc = e._tpc;
_voice = e._voice;
_notes = e._notes;
if (e._edata) {
_edata = new unsigned char[e._len + 1]; // don’t forget trailing zero
memcpy(_edata, e._edata, e._len+1);
}
else
_edata = 0;
_len = e._len;
_metaType = e._metaType;
_note = e._note;
_tuning = e._tuning;
}
Event::~Event()
{
delete[] _edata;
}
//---------------------------------------------------------
// NPlayEvent::NPlayEvent (beatType2metronomeEvent)
//---------------------------------------------------------
NPlayEvent::NPlayEvent(BeatType beatType)
{
setType(ME_TICK2);
setVelo(127);
switch (beatType) {
case BeatType::DOWNBEAT:
setType(ME_TICK1);
break;
case BeatType::SIMPLE_STRESSED:
case BeatType::COMPOUND_STRESSED:
// use defaults
break;
case BeatType::SIMPLE_UNSTRESSED:
case BeatType::COMPOUND_UNSTRESSED:
setVelo(80);
break;
case BeatType::COMPOUND_SUBBEAT:
setVelo(25);
break;
case BeatType::SUBBEAT:
setVelo(15);
break;
}
}
//---------------------------------------------------------
// dump
//---------------------------------------------------------
void Event::dump() const
{
printf("event ");
switch (_type) {
case ME_NOTEON: printf("noteon "); break;
case ME_CONTROLLER: printf("controller"); break;
case ME_PROGRAM: printf("program "); break;
default: printf("0x%02x ", _type); break;
}
printf(" 0x%02x 0x%02x\n", _a, _b);
}
//---------------------------------------------------------
// isChannelEvent
//---------------------------------------------------------
bool MidiCoreEvent::isChannelEvent() const
{
switch(_type) {
case ME_NOTEOFF:
case ME_NOTEON:
case ME_POLYAFTER:
case ME_CONTROLLER:
case ME_PROGRAM:
case ME_AFTERTOUCH:
case ME_PITCHBEND:
case ME_NOTE:
case ME_CHORD:
return true;
default:
return false;
}
// Prevent "unreachable code" warning.
// return false;
}
//---------------------------------------------------------
// Event::write
//---------------------------------------------------------
void Event::write(XmlWriter& xml) const
{
switch(_type) {
case ME_NOTE:
xml.tagE(QString("note tick=\"%1\" channel=\"%2\" len=\"%3\" pitch=\"%4\" velo=\"%5\"")
.arg(_ontime).arg(_channel).arg(_duration).arg(_a).arg(_b));
break;
case ME_NOTEON:
xml.tagE(QString("note-on tick=\"%1\" channel=\"%2\" pitch=\"%3\" velo=\"%4\"")
.arg(_ontime).arg(_channel).arg(_a).arg(_b));
break;
case ME_NOTEOFF:
xml.tagE(QString("note-off tick=\"%1\" channel=\"%2\" pitch=\"%3\" velo=\"%4\"")
.arg(_ontime).arg(_channel).arg(_a).arg(_b));
break;
case ME_CONTROLLER:
if (_a == CTRL_PROGRAM) {
if ((_ontime == -1) && (_channel == 0)) {
xml.tagE(QString("program value=\"%1\"").arg(_b));
}
else {
xml.tagE(QString("program tick=\"%1\" channel=\"%2\" value=\"%3\"")
.arg(ontime()).arg(channel()).arg(_b));
}
}
else {
if ((ontime() == -1) && (channel() == 0)) {
xml.tagE(QString("controller ctrl=\"%1\" value=\"%2\"")
.arg(_a).arg(_b));
}
else {
xml.tagE(QString("controller tick=\"%1\" channel=\"%2\" ctrl=\"%3\" value=\"%4\"")
.arg(ontime()).arg(channel()).arg(_a).arg(_b));
}
}
break;
case ME_SYSEX:
xml.stag(QString("sysex tick=\"%1\" len=\"%2\"").arg(ontime()).arg(_len));
xml.dump(_len, _edata);
xml.etag();
break;
case ME_META:
switch(metaType()) {
case META_TRACK_NAME:
xml.tag(QString("TrackName tick=\"%1\"").arg(ontime()), QString((char*)(edata())));
break;
case META_LYRIC:
xml.tag(QString("Lyric tick=\"%1\"").arg(ontime()), QString((char*)(edata())));
break;
case META_KEY_SIGNATURE:
{
const char* keyTable[] = {
"Ces", "Ges", "Des", "As", "Es", "Bes", "F",
"C",
"G", "D", "A", "E", "B", "Fis", "Cis"
};
int key = (char)(_edata[0]) + 7;
if (key < 0 || key > 14) {
qDebug("bad key signature %d", key);
key = 0;
}
QString sex(_edata[1] ? "Minor" : "Major");
QString keyName(keyTable[key]);
xml.tag(QString("Key tick=\"%1\" key=\"%2\" sex=\"%3\"").arg(ontime()).arg(_edata[0]).arg(_edata[1]),
QString("%1 %2").arg(keyName).arg(sex));
}
break;
case META_TIME_SIGNATURE:
xml.tagE(QString("TimeSig tick=\"%1\" num=\"%2\" denom=\"%3\" metro=\"%4\" quarter=\"%5\"")
.arg(ontime())
.arg(int(_edata[0]))
.arg(int(_edata[1]))
.arg(int(_edata[2]))
.arg(int(_edata[3])));
break;
case META_TEMPO:
{
unsigned tempo = _edata[2] + (_edata[1] << 8) + (_edata[0] << 16);
xml.tagE(QString("Tempo tick=\"%1\" value=\"%2\"").arg(ontime()).arg(tempo));
}
break;
default:
xml.stag(QString("Meta tick=\"%1\" type=\"%2\" len=\"%3\" name=\"%4\"")
.arg(ontime()).arg(metaType()).arg(_len).arg(midiMetaName(metaType())));
xml.dump(_len, _edata);
xml.etag();
break;
}
break;
}
}
bool Event::operator==(const Event&) const
{
return false; // TODO
}
//---------------------------------------------------------
// midi_meta_name
//---------------------------------------------------------
QString midiMetaName(int meta)
{
const char* s = "";
switch (meta) {
case 0: s = "Sequence Number"; break;
case 1: s = "Text Event"; break;
case 2: s = "Copyright"; break;
case 3: s = "Sequence/Track Name"; break;
case 4: s = "Instrument Name"; break;
case 5: s = "Lyric"; break;
case 6: s = "Marker"; break;
case 7: s = "Cue Point"; break;
case 8:
case 9:
case 0x0a:
case 0x0b:
case 0x0c:
case 0x0d:
case 0x0e:
case 0x0f: s = "Text"; break;
case 0x20: s = "Channel Prefix"; break;
case 0x21: s = "Port Change"; break;
case 0x2f: s = "End of Track"; break;
case META_TEMPO: s = "Tempo"; break;
case 0x54: s = "SMPTE Offset"; break;
case META_TIME_SIGNATURE: s = "Time Signature"; break;
case META_KEY_SIGNATURE: s = "Key Signature"; break;
case 0x74: s = "Sequencer-Specific1"; break;
case 0x7f: s = "Sequencer-Specific2"; break;
default:
break;
}
return QString(s);
}
//---------------------------------------------------------
// insert
//---------------------------------------------------------
void EventList::insert(const Event& e)
{
int ontime = e.ontime();
if (!isEmpty() && last().ontime() > ontime) {
for (auto i = begin(); i != end(); ++i) {
if (i->ontime() > ontime) {
QList<Event>::insert(i, e);
return;
}
}
}
append(e);
}
//---------------------------------------------------------
// class EventMap::fixupMIDI
//---------------------------------------------------------
void EventMap::fixupMIDI()
{
/* track info for each of the 128 possible MIDI notes */
struct channelInfo {
/* which event the first ME_NOTEON came from */
NPlayEvent *event[128];
/* how often is the note on right now? */
unsigned short nowPlaying[128];
};
/* track info for each channel (on the heap, 0-initialised) */
struct channelInfo *info = (struct channelInfo *)calloc(_highestChannel + 1, sizeof(struct channelInfo));
auto it = begin();
while (it != end()) {
/* ME_NOTEOFF is never emitted, no need to check for it */
if (it->second.type() == ME_NOTEON) {
unsigned short np = info[it->second.channel()].nowPlaying[it->second.pitch()];
if (it->second.velo() == 0) {
/* already off (should not happen) or still playing? */
if (np == 0 || --np > 0)
it->second.setDiscard(1);
else {
/* hoist NOTEOFF to same track as NOTEON */
it->second.setOriginatingStaff(info[it->second.channel()].event[it->second.pitch()]->getOriginatingStaff());
}
}
else {
if (++np > 1)
/* restrike, possibly on different track */
it->second.setDiscard(info[it->second.channel()].event[it->second.pitch()]->getOriginatingStaff() + 1);
info[it->second.channel()].event[it->second.pitch()] = &(it->second);
}
info[it->second.channel()].nowPlaying[it->second.pitch()] = np;
}
++it;
}
free((void *)info);
}
}