#include "testApp.h"
#include "stdio.h"


//--------------------------------------------------------------
void testApp::setup(){
	bFill	= true;

	screenWidth = ofGetScreenWidth();
	screenHeight = ofGetScreenHeight();

	fingerMovie.loadMovie("zombies.mov");
	fingerMovie.play();

	ofSetFrameRate(60);
}

//--------------------------------------------------------------
void testApp::update(){
	fingerMovie.idleMovie();
}

//--------------------------------------------------------------
void testApp::draw(){
	int w = fingerMovie.getWidth();
	int h = fingerMovie.getHeight();

	//----------------------------
	// Bonuse :)
	// Mouse draw - with curved line
	//
	ofBackground(0, 0, 0);

	if( pts.size() > 0 ){

		int numPts = pts.size();
		float radius = 15.0;

		output.fill();
		output.setColor(0xFFFFFF);
		for(int i = 0; i < numPts; i++){
			output.circle(pts[i].x, pts[i].y, radius);
		}
	}

	//--------------------
	// Grab Screen for Mask
	mask.grabScreen(0, 0, w, h);
	mask.setImageType(OF_IMAGE_GRAYSCALE);

	//----------------------------
	// Video

	// Apply Mask
	unsigned char * pixels = new unsigned char[w*h*4];
	unsigned char * moviePixels = fingerMovie.getPixels();
	unsigned char * alphaPixels = mask.getPixels();

	for (int i = 0; i < w; i++){
		for (int j = 0; j < h; j++){
			int pos = (j * w + i);
			pixels[pos*4  ] = moviePixels[pos * 3];
			pixels[pos*4+1] = moviePixels[pos * 3+1];
			pixels[pos*4+2] = moviePixels[pos * 3+2];
			pixels[pos*4+3] = alphaPixels[pos];
		}
	}

	rgbaMixture.allocate(w,h,GL_RGBA);
	rgbaMixture.loadData(pixels, w,h,GL_RGBA);

	delete [] pixels;


	// Draw Video
	ofEnableAlphaBlending();
	rgbaMixture.draw(0,0);
	ofDisableAlphaBlending();
}

//--------------------------------------------------------------
void testApp::keyPressed(int key){
	switch (key){
		case ' ':
			pts.clear();

			break;
	}
}

//--------------------------------------------------------------
void testApp::keyReleased(int key){

}

//--------------------------------------------------------------
void testApp::mouseMoved(int x, int y ){

}

//--------------------------------------------------------------
void testApp::mouseDragged(int x, int y, int button){

	//we add a new point to our line
	pts.push_back(ofPoint());
	int last = pts.size()-1;

	if(last <= 0){
		pts[0].x = x;
		pts[0].y = y;

	} else {
		pts[last].x = x;
		pts[last].y = y;
	}
}

//--------------------------------------------------------------
void testApp::mousePressed(int x, int y, int button){
	pts.push_back(ofPoint());
	int last = pts.size()-1;

	if(last <= 0){
		pts[0].x = x;
		pts[0].y = y;

	} else {
		pts[last].x = x;
		pts[last].y = y;
	}
}


//--------------------------------------------------------------
void testApp::mouseReleased(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::windowResized(int w, int h){

}