modify the pixels colors

From: Québec (notAgain_at_enough.ca)
Date: 03/31/04 

Date: Tue, 30 Mar 2004 21:07:53 -0500

 Hi again,

                        This is I think the last problem I face before my
priceless applet is over.

                        While pursuing my wonderfull creation here I am
stunned with my colorize method witch is suppose to modify the pixels colors
of an image faster than ImageFilter....
                        My question is: why does the image dont print?

Jean

public Image colorer(Graphics g2, Image couleur) {
         g2.drawImage(couleur,300, 0, null); <<<<<<<<<<< this image is
printed

 int w = couleur.getWidth(null);
 int h = couleur.getHeight(null);
 int buffer[] = new int [w * h];
 int new_buffer[] = new int [w * h];

PixelGrabber grabber = new PixelGrabber(couleur, 0, 0, w, h, buffer, 0, w);
    try {
      grabber.grabPixels();
      int ra = 50;
   for (int y = 0; y < h; y++) {
        for (int x = 0; x < w; x++) {
              if(ra >240)
                                       ra = 50; else ra++;
        int tmp = buffer[y * w];
        int a = tmp & 0xFF000000;
        int r = tmp & 0xFF0000;
        int g = (tmp & 0x00FF00) & ra << 11;
        int b = tmp & 0xFF;
        new_buffer[y * w] = (a <<24 | r << 16 | g << 8 | b);
        }
}

} catch (Exception e) {e.printStackTrace();}
Image img = createImage(new MemoryImageSource(w, h, new_buffer, 0, w));

g2.drawImage(img,0, 0, null); <<<<<<<<<<< this image is NOT printed

 return img;
  }

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