c++ file for https://vimeo.com/59119048

testApp.cpp

#include "testApp.h"

//--------------------------------------------------------------
void testApp::setup(){
    video.loadMovie("bridgeR.mov");
    video.play();
    ofBackground(0);
    ofEnableAlphaBlending();
    image.allocate(video.getWidth(), video.getHeight(), OF_IMAGE_COLOR);
    mode=1;
    rgbaFboFloat.allocate(ofGetWidth(), ofGetHeight(), GL_RGBA32F_ARB);
    rgbaFboFloat.begin();
    ofClear(255,255,255, 0);
    rgbaFboFloat.end();
    screenGrab.allocate(ofGetWidth(),ofGetHeight(),GL_RGBA);
    addIt.allocate(ofGetWidth(),ofGetHeight(),GL_RGBA);
    ofHideCursor();
    
    
}

//--------------------------------------------------------------
void testApp::update(){
    video.update();
    if (mode==2) {
        rgbaFboFloat.begin();
        drawFboTest();
        rgbaFboFloat.end();
    }
}



//--------------------------------------------------------------
void testApp::drawFboTest(){
    ofEnableAlphaBlending();
    image.setFromPixels(video.getPixelsRef());
    ofSetColor(255,255,255,200);
    image.drawSubsection(0, 0,ofGetWidth(), ofGetHeight(),ofRandom(ofGetWidth()),ofRandom(ofGetHeight()), 200, 250);
}

//--------------------------------------------------------------
void testApp::draw(){
    if (mode==1){
        ofEnableBlendMode(OF_BLENDMODE_ADD);
        ofSetColor(255, 255, 255,(ofMap(mouseX, 0, ofGetWidth(), 0, 255)));
        video.draw(0, 0, ofGetWidth(), ofGetHeight());
        ofSetColor(255, 255, 255,200);
        screenGrab.draw(0, 0,ofGetWidth(), ofGetHeight());
        screenGrab.loadScreenData(ofRandom(ofGetWidth()),ofRandom(ofGetHeight()), 200, 250);
        ofDisableBlendMode();  
    }
    if (mode==2){
        ofEnableAlphaBlending();
        ofSetColor(255,255,255,(ofMap(mouseX, 0, ofGetWidth(), 0, 255)));
        addIt=rgbaFboFloat.getTextureReference();
        ofEnableBlendMode(OF_BLENDMODE_ADD);
        ofRect(0, 0, ofGetWidth(), ofGetHeight());
        ofSetColor(255,255,255,ofClamp((ofMap(mouseX, 0, ofGetWidth(), 0, 255)), 50, 255));
        addIt.draw(0, 0,ofGetWidth(), ofGetHeight());
        ofDisableBlendMode();
    }
}



//--------------------------------------------------------------
void testApp::keyPressed(int key){
    
    if (key=='1'){
        mode=1;
    }
    if (key=='2'){
        mode=2;
    }
}

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

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

//--------------------------------------------------------------
void testApp::mouseDragged(int x, int y, int button){
    int width = ofGetWidth();
    float pct = (float)x / (float)width;
    video.setPosition(pct);
}

//--------------------------------------------------------------
void testApp::mousePressed(int x, int y, int button){
    video.setPaused(true);
    int width = ofGetWidth();
    float pct = (float)x / (float)width;
    video.setPosition(pct);
}

//--------------------------------------------------------------
void testApp::mouseReleased(int x, int y, int button){
    video.play();
}

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

//--------------------------------------------------------------
void testApp::gotMessage(ofMessage msg){
    
}

//--------------------------------------------------------------
void testApp::dragEvent(ofDragInfo dragInfo){ 
    
}