andrew@0: /*
andrew@0:  *  midiEventHolder.cpp
andrew@0:  *  midiCannamReader3
andrew@0:  *
andrew@0:  *  Created by Andrew on 19/07/2011.
andrew@0:  *  Copyright 2011 QMUL. All rights reserved.
andrew@0:  *
andrew@0:  */
andrew@0: //hello
andrew@0: 
andrew@0: #include "midiEventHolder.h"
andrew@0: 
andrew@0: midiEventHolder::midiEventHolder(){
andrew@0: //	recordedNoteOnIndex = 0;
andrew@0: 	
andrew@0: 	width = ofGetWidth();
andrew@0: 	height = ofGetHeight();
andrew@0: 	screenWidth= &width;
andrew@0: 	screenHeight = &height;
andrew@0: 	
andrew@0: 	ticksPerScreen = 4000;
andrew@0: 	tickLocation = 0;
andrew@0: 	pulsesPerQuarternote = 240;
andrew@0: 	noteArrayIndex = 0;
andrew@0: 	noteMinimum = 30;
andrew@0: 	noteMaximum = 96;
andrew@0: 	
andrew@1: 	minimumMatchSpeed = 0.7;
andrew@1: 	maximumMatchSpeed = 1.3;
andrew@0: 	likelihoodWidth = 100;
andrew@0: 	likelihoodToNoiseRatio = 50;
andrew@0: 	
andrew@1: 	matchWindowWidth = 4000;//window size for matching in ms 
andrew@0: 	
andrew@1: 	bayesStruct.resetSize(matchWindowWidth);
andrew@0: 	bayesStruct.resetSpeedSize(200);
andrew@0: 	bayesStruct.setRelativeSpeedScalar(0.01);
andrew@0: 	bayesStruct.relativeSpeedPrior.getMaximum();
andrew@0: 	bayesStruct.simpleExample();
andrew@0: 	
andrew@0: 	noteHeight = (*screenHeight) / (float)(noteMaximum - noteMinimum);
andrew@0: }
andrew@0: 
andrew@0: 
andrew@0: 
andrew@0: void midiEventHolder::reset(){
andrew@0: 	noteArrayIndex = 0;
andrew@0: 	tickLocation = 0;
andrew@0: 	lastPeriodUpdateTime = ofGetElapsedTimeMillis();
andrew@0: 	bayesStruct.lastEventTime = ofGetElapsedTimeMillis();
andrew@0: 	numberOfScreensIn = 0;
andrew@0: //	recordedNoteOnIndex = 0;
andrew@0: 	bayesStruct.setNewDistributionOffsets(0);
andrew@0: 	bayesStruct.posterior.offset = 0;
andrew@0: 	
andrew@0: 	playedEventTimes.clear();
andrew@0: 	playedNoteOnMatrix.clear();
andrew@0: 	matchMatrix.clear();
andrew@0: 	
andrew@0: 	bayesStruct.resetSpeedToOne();
andrew@0: 	
andrew@0: }
andrew@0: 
andrew@1: void midiEventHolder::clearAllEvents(){
andrew@1: 	recordedNoteOnMatrix.clear();
andrew@1: 	matchesFound.clear();
andrew@1: 	noteOnMatches.clear();
andrew@1: 	recordedEventTimes.clear();
andrew@1: 	
andrew@1: 	//played events:
andrew@1: 	playedEventTimes.clear();
andrew@1: 	playedNoteOnMatrix.clear();
andrew@1: 	matchMatrix.clear();
andrew@1: }
andrew@1: 
andrew@0: void midiEventHolder::printNotes(){
andrew@0: 	printf("RECORDED MATRIX");
andrew@0: 	for (int i = 0;i < recordedNoteOnMatrix.size();i++){
andrew@0: 		printf("%i :: %i @ %f\n", recordedNoteOnMatrix[i][0], recordedNoteOnMatrix[i][1], recordedEventTimes[i]);
andrew@0: 	}
andrew@0: }
andrew@0: 
andrew@0: 
andrew@0: double midiEventHolder::getEventTimeTicks(double millis){
andrew@0: 	return (millis * pulsesPerQuarternote / period);
andrew@0: }
andrew@0: 
andrew@0: double midiEventHolder::getEventTimeMillis(double ticks){
andrew@0: 	return (period * ticks / (double) pulsesPerQuarternote);
andrew@0: }
andrew@0: 
andrew@0: void midiEventHolder::newNoteOnEvent(int pitch, int velocity, double timePlayed){
andrew@0: 	
andrew@0: 	//MOVE INTO BAYESSTRUCT?? XXX
andrew@0: 	//bayesStruct.copyPriorToPosterior();
andrew@0: 	//why was this here??
andrew@0: 	bayesStruct.prior.copyFromDynamicVector(bayesStruct.posterior);//try the otehr way
andrew@0: 	//bayesStruct.copyPriorToPosterior();
andrew@0: 	//need to get new MAP position and set the offset of the arrays
andrew@0: 	//currently bestEstimate is the approx for the new MAP position
andrew@0: 	
andrew@0: 	
andrew@0: 	//add the new event to our played information matrix
andrew@0: 	IntVector v;
andrew@0: 	v.push_back(pitch);
andrew@0: 	v.push_back(velocity);
andrew@0: 	playedNoteOnMatrix.push_back(v);
andrew@0: 
andrew@0: 	
andrew@0: 	//would update the arrays at this point to show where out current location (phase) and tempo is.
andrew@0: 	double timeNow = ofGetElapsedTimeMillis() - startTime;
andrew@0: 	recentNoteOnTime = timeNow;
andrew@0: 	
andrew@0: 	printf("Max time %f OF time %f \n", timePlayed, timeNow);
andrew@0: 	
andrew@0: 	playedEventTimes.push_back(timePlayed);
andrew@0: 	
andrew@0: 	double timeDifference = ofGetElapsedTimeMillis() - bayesStruct.lastEventTime; 
andrew@0: 	
andrew@0: 	//addnoise to the tempo distribution
andrew@0: 	bayesStruct.decaySpeedDistribution(timeDifference);
andrew@0: 
andrew@0: 	
andrew@0: //	double newMAPestimateTime = bayesStruct.posterior.getIndexInRealTerms(bayesStruct.posterior.MAPestimate);
andrew@0: 	//was offset + bayesStruct.posterior.MAPestimate; but this doesnt include scalar to convert to millis
andrew@0: 
andrew@0: 	timeString = "Pitch:"+ofToString(pitch);
andrew@0: 	timeString += ", time now:"+ofToString(timeNow, 1);
andrew@0: 	timeString += "  TD "+ofToString(timeDifference, 1);
andrew@0: 	timeString += "  offset "+ofToString(bayesStruct.posterior.offset , 0);
andrew@0: 	timeString += " map Est: "+ofToString(bayesStruct.posterior.MAPestimate, 0); 
andrew@0: //	timeString += " Previous time" + ofToString(newMAPestimateTime,0);
andrew@0: 	timeString += " speedMap "+ofToString(bayesStruct.relativeSpeedPosterior.MAPestimate, 2);
andrew@0: 	timeString += " :: "+ofToString(bayesStruct.relativeSpeedPosterior.getIndexInRealTerms(bayesStruct.relativeSpeedPosterior.MAPestimate), 2);
andrew@0: 	
andrew@0: //	newMAPestimateTime += (timeDifference * bayesStruct.relativeSpeedPosterior.getIndexInRealTerms(bayesStruct.relativeSpeedPosterior.MAPestimate));
andrew@0: //	timeString += " :  Predicted MAP time" + ofToString(newMAPestimateTime,0);
andrew@0: 
andrew@0: 	//then we recalculate the window start based on MAP being central
andrew@0: 	//then we do the matches on these and the likelihood on these.
andrew@0: 	
andrew@0: 	bayesStruct.setNewDistributionOffsets(max(0., bayesStruct.bestEstimate - (bayesStruct.prior.scalar*bayesStruct.prior.arraySize/2)));
andrew@0: //	bayesStruct.prior.offset = max(0.,newMAPestimateTime - (bayesStruct.prior.scalar*bayesStruct.prior.arraySize/2));
andrew@0: 	
andrew@0: 	timeString += " \n :  new offset " + ofToString(bayesStruct.prior.offset , 0);
andrew@0: 	timeString += " \n best estimate "+ofToString(bayesStruct.bestEstimate, 1);
andrew@0: 	timeString += " map "+ofToString(bayesStruct.relativeSpeedPosterior.MAPestimate, 1);
andrew@0: 	timeString += " rel speed "+ofToString(bayesStruct.relativeSpeedPosterior.getIndexInRealTerms(bayesStruct.relativeSpeedPosterior.MAPestimate), 1);
andrew@0: 	
andrew@0: 	
andrew@0: 	//be able to draw the prior in correct location relative to the midi notes
andrew@0: 	bayesStruct.crossUpdateArrays(bayesStruct.posterior, bayesStruct.relativeSpeedPosterior, timeDifference);
andrew@0: //	bayesStruct.crossUpdateArrays(bayesStruct.prior, bayesStruct.relativeSpeedPosterior, timeDifference);
andrew@0: 
andrew@0: 	
andrew@0: 	timeString += " new OFF "+ofToString(bayesStruct.bestEstimate - (bayesStruct.prior.scalar*bayesStruct.prior.arraySize/2), 1);
andrew@0: 	timeString += " notearrayindex "+ofToString(noteArrayIndex, 0);
andrew@0: 	//when this is off teh screen there is a problem somehow XXX
andrew@0: 	bayesStruct.posterior.offset = max(0., bayesStruct.bestEstimate - (bayesStruct.prior.scalar*bayesStruct.prior.arraySize/2));
andrew@0: //	bayesStruct.prior.offset = max(0., bayesStruct.bestEstimate - (bayesStruct.prior.scalar*bayesStruct.prior.arraySize/2));
andrew@0: 	//trying to switch to prior
andrew@0: 	
andrew@0: 	bayesStruct.lastEventTime = ofGetElapsedTimeMillis();
andrew@0: 	
andrew@0: 	//do the cross update to find current posterior for location
andrew@1: //	totalConfidence= 0;
andrew@0: 	int numberOfMatchesFound = findLocalMatches(pitch);
andrew@0: 	setMatchLikelihoods(numberOfMatchesFound);
andrew@0: 	bayesStruct.calculatePosterior();
andrew@0: 	
andrew@0: 	//having found matches we have matches for new note and matches for previous notes
andrew@0: 	findLocalTempoPairs();
andrew@0: 	
andrew@0: 	
andrew@0: 	 
andrew@0: }
andrew@0: 
andrew@0: int midiEventHolder::findLocalMatches(int notePitch){
andrew@0: 
andrew@0: 	//here we find the matches to the new note within appropriate range
andrew@0: 		
andrew@1: 	matchString = "";
andrew@0: 	
andrew@0: 	windowStartTime = max(0.0,(bayesStruct.bestEstimate - matchWindowWidth/2));//was playPositionInMillis
andrew@0: 	int numberOfMatches = findMatch(notePitch, windowStartTime, windowStartTime + matchWindowWidth);
andrew@0: 	
andrew@1: 	matchString += " pitch: "+ofToString(notePitch)+" matches "+ofToString(numberOfMatches)+" win start "+ofToString(windowStartTime);	
andrew@1: 	
andrew@0: 	return numberOfMatches;
andrew@0: 	
andrew@0: 	
andrew@0: }
andrew@0: 
andrew@0: 
andrew@0: void midiEventHolder::setMatchLikelihoods(int numberOfMatches){
andrew@0: //reset the offset to match the prior
andrew@0: 	bayesStruct.likelihood.offset = bayesStruct.prior.offset;
andrew@0: 	bayesStruct.likelihood.zero();//set to zero
andrew@0: 	
andrew@0: 	
andrew@0: 	
andrew@0: 	for (int i = 0;i < numberOfMatches && matchesFound[i] >= 0 && matchesFound[i] < recordedEventTimes.size();i++){
andrew@0: 	//	printf("match times %i of %i::%f adding likelihood to %f\n", i, numberOfMatches, recordedEventTimes[matchesFound[i]], recordedEventTimes[matchesFound[i]] - bayesStruct.likelihood.offset);
andrew@0: 		//this is the vent time since start of file
andrew@0: 		if (recordedEventTimes[matchesFound[i]] - bayesStruct.likelihood.offset < bayesStruct.likelihood.arraySize){
andrew@1: 	//		double confidenceMeasure = 0;
andrew@1: 	//		if (totalConfidence > 0)
andrew@1: 		//		confidenceMeasure =	bayesStruct.posterior.getValueAtMillis(recordedEventTimes[matchesFound[i]])/totalConfidence;
andrew@1: 	
andrew@1: 			bayesStruct.likelihood.addGaussianShape(recordedEventTimes[matchesFound[i]] - bayesStruct.likelihood.offset, likelihoodWidth, 0.5 * likelihoodToNoiseRatio );//* confidenceMeasure
andrew@0: 		}//end if
andrew@0: 	}
andrew@0: 	bayesStruct.likelihood.addConstant(0.01);
andrew@0: }
andrew@0: 
andrew@0: int midiEventHolder::findMatch(const int& notePitch, const int& startTime, const int& endTime){
andrew@0: 
andrew@0: 	matchesFound.clear();
andrew@0: 	int startIndex = 0;
andrew@0: 	
andrew@0: 	if (recordedEventTimes.size() > 0){
andrew@0: 	
andrew@0: 		//get to the right range of events to check in
andrew@0: 		while (startIndex < recordedEventTimes.size() && recordedEventTimes[startIndex] < startTime)
andrew@0: 			startIndex++;
andrew@0: 		   
andrew@0: 		}
andrew@0: 
andrew@0: 	
andrew@0: 	while (startIndex < recordedEventTimes.size() && recordedEventTimes[startIndex] < endTime){
andrew@0: 		if (recordedNoteOnMatrix[startIndex][1] == notePitch){
andrew@0: 			matchesFound.push_back(startIndex);
andrew@1: 			double confidence = bayesStruct.posterior.getValueAtMillis(mouseX);
andrew@1: 	//																   recordedEventTimes[startIndex]);
andrew@1: 			matchString += "["+ofToString(startIndex)+"] = "+ofToString(confidence, 3)+" .";
andrew@0: 		}
andrew@0: 		startIndex++;
andrew@0: 	}
andrew@0: 	 
andrew@0: //	printf("%i MATCHES TO Note %i found\n", (int)matchesFound.size(), notePitch);
andrew@0: 	int size = matchesFound.size();
andrew@0: 
andrew@0: 	IntVector v;
andrew@0: 	v.push_back(size);
andrew@0: 	for (int i = 0;i < matchesFound.size();i++)
andrew@0: 		v.push_back(matchesFound[i]);
andrew@0: 	
andrew@0: 	matchMatrix.push_back(v);
andrew@0: 	
andrew@0: 	return size;
andrew@0: }
andrew@0: 
andrew@0: bool midiEventHolder::checkIfMatchedNote(const int& tmpIndex){
andrew@0: 	for (int i = 0;i < matchesFound.size();i++){
andrew@0: 	if (matchesFound[i] == tmpIndex)
andrew@0: 		return true;
andrew@0: 	}
andrew@0: 	return false;
andrew@0: }
andrew@0: 
andrew@0: 
andrew@0: 
andrew@0: void midiEventHolder::findLocalTempoPairs(){
andrew@0: 
andrew@0: 	int currentPlayedIndex = playedNoteOnMatrix.size()-1;
andrew@0: //	printf("played %i : %i, vel %i\n", currentPlayedIndex, playedNoteOnMatrix[currentPlayedIndex][0], playedNoteOnMatrix[currentPlayedIndex][1]);
andrew@0: //	printMatchesFound();
andrew@0: //	printMatchMatrix();
andrew@0: //	printf("possible notes \n");
andrew@0: 	
andrew@0: 	
andrew@0: 	for (int i = 0;i < matchMatrix[currentPlayedIndex][0];i++){
andrew@0: 
andrew@0: 		int recordedCurrentIndex = matchMatrix[currentPlayedIndex][i+1];
andrew@0: 		
andrew@0: 		int previousIndex = currentPlayedIndex-1;
andrew@0: 		
andrew@0: 		while (previousIndex >= 0 && playedEventTimes[previousIndex] + 2000 > playedEventTimes[currentPlayedIndex]) {
andrew@0: 			double playedTimeDifference = playedEventTimes[currentPlayedIndex] - playedEventTimes[previousIndex];
andrew@0: 
andrew@0: 			for (int k = 0;k < matchMatrix[previousIndex][0];k++){
andrew@0: 				int recordedPreviousIndex = matchMatrix[previousIndex][k+1];
andrew@0: 				
andrew@1: 
andrew@0: 
andrew@0: 				double recordedTimeDifference = recordedEventTimes[recordedCurrentIndex] - recordedEventTimes[recordedPreviousIndex];
andrew@1: 
andrew@0: 				
andrew@0: 				//we want the speed of the recording relative to that of the playing live
andrew@0: 				
andrew@0: 				double speedRatio = recordedTimeDifference / playedTimeDifference;
andrew@0: 				if (speedRatio <= maximumMatchSpeed && speedRatio >= minimumMatchSpeed){
andrew@1: 								printf("(%i)", matchMatrix[currentPlayedIndex][i+1]);
andrew@1: 								printf("[%i] :: ", recordedPreviousIndex);
andrew@1: 								printf(" rec{%f} vs play(%f) ", recordedTimeDifference, playedTimeDifference);
andrew@1: 								printf("update on speed ratio %f\n", speedRatio);
andrew@1: 					//	matchString += " speed: "+ofToString(speedRatio, 3);
andrew@0: 				//	commented for debug
andrew@0: 					bayesStruct.updateTempoDistribution(speedRatio, 0.1);//second paramter is confidence in the match
andrew@0: 			
andrew@0: 				}
andrew@0: 	//		printf("\n");	
andrew@0: 			}
andrew@0: 			
andrew@0: 			previousIndex--;
andrew@0: 		}//end while previousindex countdown
andrew@0: 	}//end for loop through possible current matches
andrew@0: 	
andrew@0: 		
andrew@0: }
andrew@0: 
andrew@0: 
andrew@0: void midiEventHolder::updatePlayPosition(){
andrew@0: 	
andrew@0: 	//in actual fact if we are changing the speed of the play position 
andrew@0: 	//we will need to update this via the file
andrew@0: 	
andrew@0: 	double timeDifference = ofGetElapsedTimeMillis() - lastPeriodUpdateTime;
andrew@0: 	//this is time diff in milliseconds
andrew@0: 	//then we have 
andrew@0: 	double quarterNoteIntervals = (timeDifference / period);
andrew@0: 	tickLocation = quarterNoteIntervals * pulsesPerQuarternote; 
andrew@0: 	
andrew@0: 	playPositionInMillis = timeDifference;//based on updating from when we change period
andrew@0: 	//this to be added
andrew@0: 	
andrew@0: 	bayesStruct.updateBestEstimate();
andrew@0: 	
andrew@0: }
andrew@0: 
andrew@0: 
andrew@0: void midiEventHolder::drawFile(){
andrew@0: 	//draws midi file on scrolling screen
andrew@0: 	int size = recordedNoteOnMatrix.size();
andrew@0: 	if (size > 0){
andrew@0: 		
andrew@0: 		numberOfScreensIn = floor(bayesStruct.bestEstimate / getEventTimeMillis(ticksPerScreen));//rpounds down on no screens in
andrew@0: 		
andrew@0: 	//	numberOfScreensIn = tickLocation / ticksPerScreen;//rounds down
andrew@0: 		timeOffsetForScreen = getEventTimeMillis(numberOfScreensIn * ticksPerScreen);
andrew@0: 		
andrew@0: 		while (noteArrayIndex < recordedNoteOnMatrix.size() && tickLocation > recordedNoteOnMatrix[noteArrayIndex][0] )
andrew@0: 			noteArrayIndex++;
andrew@0: 		
andrew@0: 		
andrew@0: 		while (noteArrayIndex > 0 && noteArrayIndex < size && tickLocation < recordedNoteOnMatrix[noteArrayIndex][0])
andrew@0: 			noteArrayIndex--;
andrew@0: 		
andrew@0: 		//need to start where we currently are in file
andrew@0: 		int maxNoteIndexToPrint	= noteArrayIndex;
andrew@0: 		int minNoteIndexToPrint = noteArrayIndex;
andrew@0: 		
andrew@0: 		while (maxNoteIndexToPrint < recordedNoteOnMatrix.size() && recordedNoteOnMatrix[maxNoteIndexToPrint][0] < (numberOfScreensIn+1)*ticksPerScreen )
andrew@0: 			maxNoteIndexToPrint++;
andrew@0: 		
andrew@0: 		while (minNoteIndexToPrint > 0 && minNoteIndexToPrint < size && recordedNoteOnMatrix[minNoteIndexToPrint][0] > numberOfScreensIn*ticksPerScreen)
andrew@0: 			minNoteIndexToPrint--;
andrew@0: 		
andrew@0: 		for (int tmpIndex = max(0,minNoteIndexToPrint);tmpIndex < min(maxNoteIndexToPrint, (int)recordedNoteOnMatrix.size());tmpIndex++){
andrew@0: 			
andrew@0: 			if (checkIfMatchedNote(tmpIndex))
andrew@0: 				ofSetColor(0,0,255);
andrew@0: 			else
andrew@0: 				ofSetColor(255,255,255);
andrew@0: 
andrew@0: 	//		 XXX replace ofgetwidth below
andrew@0: 			//if (tmpIndex >= 0 && tmpIndex < size)
andrew@0: 			int xLocation = (float)(recordedNoteOnMatrix[tmpIndex][0] - numberOfScreensIn*ticksPerScreen)*(*screenWidth)/(float)ticksPerScreen;
andrew@0: 			int duration = (float)(recordedNoteOnMatrix[tmpIndex][3]*(*screenWidth))/(float)ticksPerScreen;
andrew@0: 			
andrew@0: 			
andrew@0: 			int yLocation = (*screenHeight) - ((recordedNoteOnMatrix[tmpIndex][1] - noteMinimum )*(*screenHeight)/ (float)(noteMaximum - noteMinimum));						 
andrew@0: 			ofRect(xLocation,yLocation, duration,  noteHeight);
andrew@0: 			
andrew@0: 		}
andrew@0: 		
andrew@0: 		
andrew@0: 		int xLocation;// = getLocationFromTicks(tickLocation);
andrew@0: 	//	ofLine(xLocation, 0, xLocation, (*screenHeight));
andrew@0: 		
andrew@0: 		//orange line at best estimate
andrew@0: 		xLocation = getLocationFromMillis(bayesStruct.bestEstimate);
andrew@0: 		ofSetColor(250,100,0);
andrew@0: 		ofLine(xLocation, 0, xLocation, (*screenHeight));
andrew@0: 		
andrew@0: 		
andrew@0: 		//lines where matching window start and end are 
andrew@0: 		ofSetColor(0,100,255);
andrew@0: 		xLocation = getLocationFromMillis(windowStartTime);
andrew@0: 		ofLine(xLocation, 0, xLocation, (*screenHeight));
andrew@0: 		xLocation = getLocationFromMillis(windowStartTime+matchWindowWidth);
andrew@0: 		ofLine(xLocation, 0, xLocation, (*screenHeight));
andrew@0: 		 
andrew@0: 		
andrew@0: 	}	
andrew@0: 	
andrew@1: 	
andrew@1: 	
andrew@0: 	ofDrawBitmapString(ofToString(timeOffsetForScreen, 1), 20,20);
andrew@0: 	
andrew@0: 	ofDrawBitmapString(timeString, 20, 60);
andrew@0: 	
andrew@0: //	bayesStruct.drawArrays();
andrew@0: 	
andrew@0: //	ofSetColor(200,200,0);
andrew@0: //	bayesStruct.prior.drawConstrainedVector(0, bayesStruct.prior.arraySize, 400, 800);
andrew@0: 	
andrew@0: 	//need to draw arrays within correct timescope
andrew@0: 	bayesStruct.drawArraysRelativeToTimeframe(timeOffsetForScreen, timeOffsetForScreen + getEventTimeMillis(ticksPerScreen));
andrew@0: 	
andrew@1: 	if (drawTempoMode)
andrew@1: 	bayesStruct.drawTempoArrays();
andrew@0: 	
andrew@1: 	
andrew@1: 	ofSetColor(0, 0, 0);
andrew@0: 	ofDrawBitmapString(matchString, 20, ofGetHeight() - 20);
andrew@0: 	
andrew@1: 	double confidence = bayesStruct.posterior.getValueAtMillis(mouseX);
andrew@1: 	string mouseString = "mouseX "+ofToString(confidence, 3)+" .";
andrew@1: 	ofDrawBitmapString(mouseString, 20 ,  ofGetHeight() - 40);
andrew@0: }
andrew@0: 
andrew@0: int midiEventHolder::getLocationFromTicks(double tickPosition){
andrew@0: 	return (int)((float)(tickPosition - numberOfScreensIn*ticksPerScreen)*(*screenWidth)/(float)ticksPerScreen);
andrew@0: }
andrew@0: 
andrew@0: int midiEventHolder::getLocationFromMillis(double millisPosition){
andrew@0: 	//(getEventTimeTicks(windowStartTime+matchWindowWidth) - numberOfScreensIn*ticksPerScreen)*(*screenWidth) / (double)ticksPerScreen
andrew@0: 	return (millisPosition - timeOffsetForScreen)*(*screenWidth)/getEventTimeMillis(ticksPerScreen);
andrew@0: }
andrew@0: 
andrew@0: 
andrew@0: void midiEventHolder::exampleCrossUpdate(){
andrew@0: 	
andrew@0: 	bayesStruct.crossUpdateArrays(bayesStruct.posterior, bayesStruct.relativeSpeedPosterior, 200);
andrew@0: 	
andrew@0: }
andrew@0: 
andrew@0: 
andrew@0: void midiEventHolder::setStartPlayingTimes(){
andrew@0: 	lastPeriodUpdateTime = ofGetElapsedTimeMillis();
andrew@0: 	bayesStruct.lastEventTime = ofGetElapsedTimeMillis();
andrew@0: 	startTime = lastPeriodUpdateTime;
andrew@0: 	
andrew@0: 	bayesStruct.resetArrays();
andrew@0: //	bayesStruct.lastBestEstimateUpdateTime = ofGetElapsedTimeMillis();
andrew@0: 	matchString = "";
andrew@0: }
andrew@0: 
andrew@0: 
andrew@0: void midiEventHolder::printMatchMatrix(){
andrew@0: 	printf("match matrix:\n");
andrew@0: 	for (int i = 0;i < matchMatrix.size();i++){
andrew@0: 		for (int k = 0;k < matchMatrix[i].size();k++){
andrew@0: 			printf("%i , ", matchMatrix[i][k]);
andrew@0: 		}
andrew@0: 		printf("\n");
andrew@0: 	}
andrew@0: 	
andrew@0: 	
andrew@0: }