Work/midiwrt/MUSCNV.CPP

#include <iostream.h>
#include <midiwrt/muscnv.hpp>
#include <midiwrt/midiptch.hpp>

MUSConverter::MUSConverter(String midiPathFileName,String musPathFileName)
: MUSFile(musPathFileName), mMidiData(midiPathFileName),
	mNumTracks(0), mMidiTrack((MemFile&)mMidiData)
{
}

MUSConverter::~MUSConverter()
{
}

WORD MUSConverter::convertFile(void)
{
	if(!isOkay())return FALSE;
  if(!writeInfoTrack())return FALSE;
	if(!readMUSFile())return FALSE;
  if(!updateTrackInfo())return FALSE;
	return TRUE;
}

WORD MUSConverter::updateTrackInfo(void)
{
  if(!mNumTracks)return FALSE;
	mMidiHeader.tracks(mNumTracks);
	if(!mMidiData.writeHeader(mMidiHeader))return FALSE;
	if(!mMidiData.flush())return FALSE;
  return TRUE;
}

WORD MUSConverter::writeInfoTrack(void)
{
	String copyRightNotice("(c) Copyright 1995 Sean M. Kessler.");
	String textEventOne("WINMUS v1.00 Beta.");
	char timeSignature[]={0x04,0x02,0x60,0x08};
	char setTempo[]={0x09,0xA3,0x1A};

	if(!mMidiData.isOkay()||!MUSFile::isOkay())return FALSE;
	if(!mMidiData.writeHeader(mMidiHeader))return FALSE;
	mMidiTrack.setLocation((MemFile&)mMidiData);
	if(!mMidiTrack.writeHeader())return FALSE;
	if(!mMidiTrack.writeMetaEvent(MidiTrack::TimeSignature,(void*)timeSignature,sizeof(timeSignature)))return FALSE;
	mMidiTrack.setDeltaTime(0);
	if(!mMidiTrack.writeMetaEvent(MidiTrack::SetTempo,(void*)setTempo,sizeof(setTempo)))return FALSE;
  mMidiTrack.setDeltaTime(0);
	if(!mMidiTrack.writeMetaEvent(MidiTrack::CopyrightNotice,(void*)(LPSTR)copyRightNotice,copyRightNotice.length()))return FALSE;
	mMidiTrack.setDeltaTime(0);
	if(!mMidiTrack.writeMetaEvent(MidiTrack::TextEvent,(void*)(LPSTR)textEventOne,textEventOne.length()))return FALSE;
	mMidiTrack.setDeltaTime(0);
	if(!mMidiTrack.writeEndTrack())return FALSE;
	mNumTracks++;
  return TRUE;
}

WORD MUSConverter::handleScoreStart(void)
{
	mMidiTrack.setLocation((MemFile&)mMidiData);
	if(!mMidiTrack.writeHeader())return FALSE;
  mDeltaTime.resetTime();
  return TRUE;
}

WORD MUSConverter::handleReleaseNote(PureEvent &pureEvent,PureDelay &pureDelay,PureNote &releaseNote,BYTE trackNumber)
{
  fixChannel(pureEvent,trackNumber);
	mDeltaTime+=pureDelay.deltaTicks();
	mMidiTrack.setDeltaTime(mDeltaTime.deltaTime());
	mMidiTrack.writeMidiChannelMessage(MidiTrack::MIDINoteOff,pureEvent.channel(),(void*)&releaseNote,PureNote::DataLength);
	return FALSE;
}

WORD MUSConverter::handlePlayNote(PureEvent &pureEvent,PureDelay &pureDelay,PureNote &playNote,BYTE trackNumber)
{
	fixChannel(pureEvent,trackNumber);
	mDeltaTime+=pureDelay.deltaTicks();
	mMidiTrack.setDeltaTime(mDeltaTime.deltaTime());
	mMidiTrack.writeMidiChannelMessage(MidiTrack::MIDINoteOn,pureEvent.channel(),(void*)&playNote,PureNote::DataLength);
	return FALSE;
}

WORD MUSConverter::handlePitchBend(PureEvent &pureEvent,PureDelay &pureDelay,BYTE pitchBenderValue,BYTE trackNumber)
{
	fixChannel(pureEvent,trackNumber);
	MidiPitchBend midiPitchBend(pitchBenderValue);
	mDeltaTime+=pureDelay.deltaTicks();
	mMidiTrack.setDeltaTime(mDeltaTime.deltaTime());
	mMidiTrack.writeMidiChannelMessage(MidiTrack::MIDIPitchBend,pureEvent.channel(),(BYTE*)midiPitchBend,MidiPitchBend::PitchBendDataLength);
	return FALSE;
}

WORD MUSConverter::handleReset(PureEvent &pureEvent,PureDelay &pureDelay,BYTE tempoValue,BYTE trackNumber)
{
	BYTE resetData[2];

  fixChannel(pureEvent,trackNumber);
	mDeltaTime+=pureDelay.deltaTicks();
	mMidiTrack.setDeltaTime(mDeltaTime.deltaTime());
	resetData[1]=0;
	switch(tempoValue)
	{
		case 0x0A :
			resetData[0]=0x78;
			mMidiTrack.writeMidiChannelMessage(MidiTrack::MIDIParameter,pureEvent.channel(),resetData,sizeof(resetData));
			break;
		case 0x0B :
			resetData[0]=0x7B;
			mMidiTrack.writeMidiChannelMessage(MidiTrack::MIDIParameter,pureEvent.channel(),resetData,sizeof(resetData));
			break;
		case 0x0C :
			resetData[0]=0x7E;
	    mMidiTrack.writeMidiChannelMessage(MidiTrack::MIDIParameter,pureEvent.channel(),resetData,sizeof(resetData));
      break;
		case 0x0D :
			resetData[0]=0x7F;
	    mMidiTrack.writeMidiChannelMessage(MidiTrack::MIDIParameter,pureEvent.channel(),resetData,sizeof(resetData));
      break;
		case 0x0E :
			resetData[0]=0x79;
	    mMidiTrack.writeMidiChannelMessage(MidiTrack::MIDIParameter,pureEvent.channel(),resetData,sizeof(resetData));
			break;
		default :
			resetData[0]=0;
			mMidiTrack.writeMidiChannelMessage(MidiTrack::MIDIParameter,pureEvent.channel(),resetData,1);
      break;
	}
	return TRUE;
}

WORD MUSConverter::handleController(PureEvent &pureEvent,PureDelay &pureDelay,PureController &pureController,BYTE trackNumber)
{
	MidiTrack::MidiChannelMsg midiChannelMessage;
	BYTE midiData[2];

  fixChannel(pureEvent,trackNumber);
	mDeltaTime+=pureDelay.deltaTicks();
	mMidiTrack.setDeltaTime(mDeltaTime.deltaTime());
	if(0==pureController.controllerNumber())midiChannelMessage=MidiTrack::MIDIProgram;
	else midiChannelMessage=MidiTrack::MIDIParameter;
	switch(pureController.controllerNumber())
	{
		case 0x00 :
			midiData[0]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,1);
			break;
		case 0x01 :
			midiData[0]=0x00;
			midiData[1]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,sizeof(midiData));
      break;
		case 0x02 :
			midiData[0]=0x01;
			midiData[1]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,sizeof(midiData));
      break;
		case 0x03 :
			midiData[0]=0x07;
			midiData[1]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,sizeof(midiData));
			break;
		case 0x04 :
			midiData[0]=0x0A;
			midiData[1]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,sizeof(midiData));
      break;
		case 0x05 :
			midiData[0]=0x0B;
			midiData[1]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,sizeof(midiData));
			break;
		case 0x06 :
			midiData[0]=0x5B;
			midiData[1]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,sizeof(midiData));
			break;
		case 0x07 :
			midiData[0]=0x5D;
			midiData[1]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,sizeof(midiData));
			break;
		case 0x08 :
			midiData[0]=0x40;
			midiData[1]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,sizeof(midiData));
			break;
		case 0x09 :
			midiData[0]=0x43;
			midiData[1]=pureController.controllerValue();
			mMidiTrack.writeMidiChannelMessage(midiChannelMessage,pureEvent.channel(),midiData,sizeof(midiData));
			break;
	}
	return TRUE;
}

WORD MUSConverter::handleScoreEnd(PureDelay &pureDelay)
{
	if(!mMidiTrack.length()){mMidiTrack.rewind();return TRUE;}
	mDeltaTime+=pureDelay.deltaTicks();
	mMidiTrack.setDeltaTime(mDeltaTime.deltaTime());
	mMidiTrack.writeEndTrack();
	mNumTracks++;
	return TRUE;
}