/**
 * Anaglyphic 3D Webcam
 *
 * CURRENT Reading and displaying all the images from all the attached Capture devices (webcams, ...). 
 * TODO choose left and right webcams
 * TODO merge images in order to produce anaglyphic blue + red 3D image for anaglyphic blue + red glasses
 * @author Didier Donsez
 * @for processing 2.0 and more
 */
 
import processing.video.*;

Capture[] captures;


// @see http://en.wikipedia.org/wiki/Graphic_display_resolutions
// QVGA (should be dynamically chosen)
static int height=240;
static int width=320;


void setup() {

  String[] cameras = Capture.list();
  
  if (cameras.length == 0)
  {
    println("There are no cameras available for capture.");
    exit();
  } else {

    size(width*(cameras.length+1),height); // one more for the anaglyphic blue + red image
    captures=new Capture[cameras.length];

    println("Available cameras:");    
    for (int i = 0; i < cameras.length; i++) {
      //if(i==0) continue; // internal webcam on my ladtop
      if(i==1) continue; // Stereoscopic Multiplexer
      
      println(cameras[i]);
      
      Capture capture = new Capture(this, width, height, cameras[i]);
      captures[i]=capture;
      capture.start();    

      info(capture);

    }
  }
}

void draw() {
  for (int i = 0; i < captures.length; i++) {
      //if(i==0) continue; // internal webcam on my ladtop
      if(i==1) continue;
    if (captures[i].available() == true) {
      captures[i].read();
      image(captures[i], i*width, 0);


      // compute anaglyphic blue + red image
      // TODO image(anaglyphic, captures.length*width, 0);
      
      
    }
  }
}

void info(Capture capture) {
      //println(capture);
  
      print("resolutions:");
      int[][] res = capture.resolutions();
      for (int r = 0; r < res.length; r++) {
        print(" " + res[r][0] + "x" + res[r][1]);
      }
      println();

      print("frame rates:");
      String[] fps = capture.framerates();
      for (int f = 0; f < fps.length; f++) {
        print(" "+fps[f]);
      } 
      println();
}