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#4 failure as applet

Reported by Alessio Caiazza 2009-06-01

from macno

ubuntu 9.04, firefox 3.0.10 e java 1.5

Disabling captureEvent() for panel0 because of an error.
java.lang.ClassCastException: [I
	at sun.awt.image.ByteInterleavedRaster.getDataElements(ByteInterleavedRaster.java:347)
	at processing.core.PImage.<init>(PImage.java:182)
	at it.lilik.capturemjpeg.CaptureMJPEG.run(CaptureMJPEG.java:317)

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Comments and changes

1. #1 Alessio Caiazza

   written 2009-06-01

   With Processing 1.0.3 CaptureMJPEG works ONLY on OSX 10.5 !!!!!!

   Seems due to some changes in processing.core.PImage.<init>
   
2. #2 Alessio Caiazza

   written 2009-06-01

   PImage now manage BufferedImage in a different way, this causes exception to raise.
   

   Index: core/src/processing/core/PImage.java
   ===================================================================
   --- core/src/processing/core/PImage.java    (revisione 3705)
   +++ core/src/processing/core/PImage.java    (copia locale)
   
      /**
       * Construct a new PImage from a java.awt.Image. This constructor assumes
       * that you've done the work of making sure a MediaTracker has been used
       * to fully download the data and that the img is valid.
       */
      public PImage(java.awt.Image img) {
   -    width = img.getWidth(null);
   -    height = img.getHeight(null);
   +    if (img instanceof BufferedImage) {
   +      BufferedImage bi = (BufferedImage) img;
   +      width = bi.getWidth();
   +      height = bi.getHeight();
   +      pixels = new int[width * height];
   +      WritableRaster raster = bi.getRaster();
   +      raster.getDataElements(0, 0, width, height, pixels);
    
   -    pixels = new int[width*height];
   -    PixelGrabber pg =
   -      new PixelGrabber(img, 0, 0, width, height, pixels, 0, width);
   -    try {
   -      pg.grabPixels();
   -    } catch (InterruptedException e) { }
   +    } else {  // go the old school java 1.0 route
   +      width = img.getWidth(null);
   +      height = img.getHeight(null);
   +      pixels = new int[width * height];
   +      PixelGrabber pg =
   +        new PixelGrabber(img, 0, 0, width, height, pixels, 0, width);
   +      try {
   +        pg.grabPixels();
   +      } catch (InterruptedException e) { }
   +    }
    
        format = RGB;
   -    cache = null;
   +//    cache = null;
      }
   
3. #3 Alessio Caiazza

   written 2009-06-01

   • Changed status from new to resolved.

   CaptureMJPEG: wrapper around passing ByteArrayInputStream into processing.core.PImage.<init> Now really works on Processing > 1.0 ! fixes #4

   I'll hope in a better solution in future. Fixed copyright statements

   → 4675e4dab7c1
4. #4 Alessio Caiazza

   written 2009-06-04

   Issue #6 was marked as a duplicate of this issue.

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