Load MPTK book and play back some atoms

2 files changed, 113 insertions, 9 deletions

diff --git a/ofxMaxim/ofxMaxim/libs/maxiAtoms.cpp b/ofxMaxim/ofxMaxim/libs/maxiAtoms.cpp
index 0dff9ec..7cb5a6c 100644
--- a/ofxMaxim/ofxMaxim/libs/maxiAtoms.cpp
+++ b/ofxMaxim/ofxMaxim/libs/maxiAtoms.cpp
@@ -9,8 +9,10 @@
 
 #include "maxiAtoms.h"
 #include <iostream>
+#include <fstream>
+#include "tinyxml.h"
 
-void maxiAtoms::createGabor(flArr &atom, const float freq, const float sampleRate, const uint length, 
+void maxiCollider::createGabor(flArr &atom, const float freq, const float sampleRate, const uint length, 
 						const float startPhase, const float kurtotis, const float amp) {
 	atom.resize(length);
 	float inc = 1.0 / length * 2.0;
@@ -36,11 +38,11 @@ void maxiAtoms::createGabor(flArr &atom, const float freq, const float sampleRat
 
 
 
-maxiAtomStream::maxiAtomStream() {
+maxiAccelerator::maxiAccelerator() {
 	sampleIdx = 0;
 }
 
-void maxiAtomStream::addAtom(flArr &atom) {
+void maxiAccelerator::addAtom(flArr &atom) {
 	queuedAtom quAtom;
 	quAtom.atom.copyFromArray(atom);
 	quAtom.startTime = sampleIdx;
@@ -48,7 +50,7 @@ void maxiAtomStream::addAtom(flArr &atom) {
 	atomQueue.push_back(quAtom);
 }
 
-void maxiAtomStream::fillNextBuffer(float *buffer, unsigned int bufferLength) {
+void maxiAccelerator::fillNextBuffer(float *buffer, unsigned int bufferLength) {
 	queuedAtomList::iterator it = atomQueue.begin();
 	while(it != atomQueue.end()) {
 		int atomStart = (*it).startTime + (*it).pos;
@@ -69,4 +71,71 @@ void maxiAtomStream::fillNextBuffer(float *buffer, unsigned int bufferLength) {
 		
 	}
 	sampleIdx += bufferLength;
-}
\ No newline at end of file
+}
+
+bool maxiAtomBook::loadMPTKXmlBook(string filename, maxiAtomBook &book) {
+	bool ok;
+	ifstream f;
+	f.open(filename.c_str());
+	if (f.fail()) {
+		cout << "I couldn't open " << filename << endl;
+		ok = false;
+	}else {
+		cout << "Reading " << filename << endl;
+		const int lineBufferSize = 1024;
+		char lineBuffer[lineBufferSize];
+		string line("");
+		//get dictionary definition xml
+		while("</dict>" != line) {
+			f.getline(lineBuffer, lineBufferSize);
+			line = lineBuffer;
+			cout << line << endl;
+		}
+		//this should be "txt"
+		f.getline(lineBuffer, lineBufferSize);
+		//get rest of data into one string
+		string xmlData;
+		while(!f.eof()) {
+			f.getline(lineBuffer, lineBufferSize);
+			xmlData.append(lineBuffer);
+		}
+		TiXmlDocument doc;
+		doc.Parse(xmlData.c_str());
+		cout << "Parsed xml, processing atoms...\n";
+		TiXmlHandle docHandle = TiXmlHandle(&doc);
+		
+		TiXmlElement *root = docHandle.FirstChildElement("book").ToElement();
+		TiXmlAttribute *nAtomsAtt = root->FirstAttribute();
+		cout << nAtomsAtt->Name() << ", " << nAtomsAtt->Value() << endl;
+		int nAtoms = atoi(nAtomsAtt->Value());
+		TiXmlAttribute *numSamplesAtt = nAtomsAtt->Next()->Next();
+		cout << numSamplesAtt->Name() << ", " << numSamplesAtt->Value() << endl;
+		book.numSamples = atoi(numSamplesAtt->Value());
+		TiXmlAttribute *sampleRateAtt = numSamplesAtt->Next();
+		cout << sampleRateAtt->Name() << ", " << sampleRateAtt->Value() << endl;
+		book.sampleRate = atoi(sampleRateAtt->Value());
+		
+		for(int atomIdx=0; atomIdx < nAtoms; atomIdx++) {
+			maxiGaborAtom *newAtom = new maxiGaborAtom();
+			newAtom->atomType = GABOR;
+			TiXmlElement *atom = docHandle.FirstChildElement("book").ChildElement("atom", atomIdx).ToElement();
+			TiXmlElement *node = atom->FirstChildElement()->NextSibling()->ToElement();
+			newAtom->position = atoi(node->FirstChildElement("p")->FirstChild()->ToText()->Value());
+			newAtom->length = atoi(node->FirstChildElement("l")->FirstChild()->ToText()->Value());
+			node = node->NextSibling()->ToElement();
+			newAtom->amp = atof(node->FirstChild()->ToText()->Value());
+			node = node->NextSibling()->NextSibling()->ToElement();
+			newAtom->frequency = atof(node->FirstChild()->ToText()->Value());
+			node = node->NextSibling()->NextSibling()->ToElement();
+			newAtom->phase = atof(node->FirstChild()->ToText()->Value());
+			//cout << "Atom: pos: " << newAtom->position << ", length: " << newAtom->length << ", amp: " << newAtom->amp << ", freq: " << newAtom->frequency << ", phase: " << newAtom->phase << endl;
+			book.atoms.push_back(newAtom);
+		}
+		
+	}
+	return ok;
+}
+
+maxiAtomBook::~maxiAtomBook() {
+	for(int i=0; i < atoms.size(); i++) delete atoms[i];
+}
diff --git a/ofxMaxim/ofxMaxim/libs/maxiAtoms.h b/ofxMaxim/ofxMaxim/libs/maxiAtoms.h
index c7316b5..ec054b8 100644
--- a/ofxMaxim/ofxMaxim/libs/maxiAtoms.h
+++ b/ofxMaxim/ofxMaxim/libs/maxiAtoms.h
@@ -11,18 +11,38 @@
 #include <iostream>
 #include "maximilian.h"
 #include <list>
+#include <vector>
 
 using namespace std;
 
-class maxiAtoms {
+enum maxiAtomTypes {
+	GABOR
+};
+
+struct maxiAtom {
+	maxiAtomTypes atomType;
+	float length;
+	float position;
+	float amp;
+	static bool atomSortPositionAsc(maxiAtom* a, maxiAtom* b) {return a->position < b->position;}
+};
+
+struct maxiGaborAtom : maxiAtom {
+	float frequency;
+	float phase;
+};
+
+//create atoms
+class maxiCollider {
 public:
 	static void createGabor(flArr &atom, const float freq, const float sampleRate, const uint length, 
 							const float phase, const float kurtotis, const float amp);
 };
 
-class maxiAtomStream {
+//queue atoms into an audio stream
+class maxiAccelerator {
 public:
-	maxiAtomStream();
+	maxiAccelerator();
 	void addAtom(flArr &atom);
 	void fillNextBuffer(float *buffer, unsigned int bufferLength);
 private:
@@ -34,4 +54,19 @@ private:
 	};
 	typedef list<queuedAtom> queuedAtomList;
 	queuedAtomList atomQueue;
-};
\ No newline at end of file
+};
+
+//load a book in MPTK XML format
+//http://mptk.irisa.fr/
+
+class maxiAtomBook {
+public:
+	~maxiAtomBook();
+	typedef vector<maxiAtom*> maxiAtomBookData;
+	unsigned int numSamples;
+	unsigned int sampleRate;
+	maxiAtomBookData atoms;
+	static bool loadMPTKXmlBook(string filename, maxiAtomBook &book);
+	
+};
+