andrew@24: /*
andrew@24:  *  MidiInputStream.cpp
andrew@24:  *  MuseScoreMidiFollower
andrew@24:  *
andrew@24:  *  Created by Andrew on 03/12/2011.
andrew@24:  *  Copyright 2011 QMUL. All rights reserved.
andrew@24:  *
andrew@24:  */
andrew@24: 
andrew@24: #include "MidiInputStream.h"
andrew@24: 
andrew@24: 
andrew@24: MidiInputStream::MidiInputStream(){
andrew@24: 	reset();
andrew@24: }
andrew@24: 
andrew@24: 
andrew@24: void MidiInputStream::reset(){
andrew@26: 
andrew@24: 	midiInputEvents.clear();
andrew@26: 	midiInputTimes.clear();
andrew@26: 	
andrew@24: 	eventTimesForNote.clear();
andrew@24: 	eventTimesForNote.assign (127, 0.0);
andrew@26: 
andrew@26: 	
andrew@26: 	totalNotesRecievedByPitch.clear();
andrew@26: 	totalNotesRecievedByPitch.assign (127, 0);
andrew@26: 	
andrew@24: }
andrew@24: 
andrew@24: bool MidiInputStream::noteInReceived(ofxMidiEventArgs &args){
andrew@24: //	printf("midi input received port %i, channel %i status %i, byteOne %i, byteTwo %i\n", args.port,args.channel, args.status, newPitch, args.byteTwo);
andrew@24: 	bool noteOn = false;
andrew@24: 	int newPitch;
andrew@24: 	switch (args.status) {
andrew@24: 		
andrew@24: 		case 144:
andrew@24: 			newPitch = (int)args.byteOne;
andrew@24: 			newPitch += (*transposeVal);
andrew@24: 			
andrew@25: 	//		printf("note on %i", args.byteOne);
andrew@24: 			if (args.byteTwo){
andrew@25: 			//	printf("volume is %i\n", args.byteTwo);
andrew@24: 				double time = ofGetElapsedTimeMillis();
andrew@24: 				eventTimesForNote[newPitch] = time;
andrew@24: 				noteOn = true;
andrew@26: 				newNoteCounted(newPitch);
andrew@24: 				
andrew@24: 			}else{
andrew@24: 				double time = ofGetElapsedTimeMillis();
andrew@24: 				time -= eventTimesForNote[newPitch];
andrew@26: 			//	printf(", NOTE OFF after %f millis %f ticks\n", time, time * (*factor));
andrew@24: 				
andrew@24: 				int index = endNote(newPitch);
andrew@25: 				//correct the length of note time
andrew@25: 				if (midiInputEvents[index].size() > 2)
andrew@25: 				midiInputEvents[index][3] = (time * (*factor));
andrew@24: 			}
andrew@24: 			
andrew@24: 			break;
andrew@24: 		default:
andrew@24: 			break;
andrew@24: 	}
andrew@24: 	
andrew@24: 	return noteOn;
andrew@24: 	//cout << "MIDI message [port: " << args.port << ", channel: " << args.channel << ", status: " << args.status << ", byteOne: " << newPitch << ", byteTwo: " << args.byteTwo << ", timestamp: " << args.timestamp << "]" << endl;
andrew@24: }
andrew@24: 
andrew@26: void  MidiInputStream::newNoteCounted(const int& pitch){
andrew@26: 	totalNotesRecievedByPitch[pitch] += 1;
andrew@26: }
andrew@24: 
andrew@24: int MidiInputStream::endNote(int notePitch){
andrew@24: 	int index = midiInputEvents.size()-1;
andrew@24: 	while (index > 0 && midiInputEvents[index][1] != notePitch){
andrew@24: 		index--;
andrew@24: 	}
andrew@25: //	printf("found index %i\n", index);
andrew@24: 	return index;
andrew@24: }
andrew@24: 
andrew@26: double MidiInputStream::calculateTotalScore(midiEventHolder& midiEvents){
andrew@26: 	double gameScore = 1.0;
andrew@26: 	double totalNotes = 1.0;
andrew@26: 	if (totalNotesRecievedByPitch.size() > 100){
andrew@26: 		for (int i = 30;i < 90;i++){
andrew@26: 			gameScore += abs(totalNotesRecievedByPitch[i] - midiEvents.recordedTotalNoteCounterByPitch[i]);
andrew@26: 			totalNotes += midiEvents.recordedTotalNoteCounterByPitch[i];
andrew@26: 		}
andrew@26: 	}
andrew@26: 	return 1.0 - (gameScore / totalNotes);
andrew@26: 
andrew@26: }
andrew@26: 
andrew@24: void MidiInputStream::printNotes(){
andrew@24: 	printf("live input \n");
andrew@24: 	for (int i = 0;i < midiInputEvents.size();i++){
andrew@24: 		printf("ticktime %i :: pitch %i @ millis %f\n",  midiInputEvents[i][0],  midiInputEvents[i][1],  midiInputTimes[i]);
andrew@24: 	}
andrew@24: }
andrew@26: 
andrew@26: void MidiInputStream::printTotalCount(){
andrew@26: 	for (int i = 0;i < totalNotesRecievedByPitch.size();i++){
andrew@26: 		printf("LIVE PLAYED TOTAL[%i] := %i\n", i, totalNotesRecievedByPitch[i]);
andrew@26: 	}
andrew@26: }
andrew@24: