Some problems about GIF images...

[Alexian]

Hi there! I got some problems with GIF images format.
In my J2D application (a simple game) I load some PNG images (24 bit colors), but since the execution was slow I switched the format of images in GIF format (8 bit colors). Here I met the problems. Before the switching, all the PNG images were loaded on the screen without problems, now the GIF images are loaded sometimes yes sometimes no. And I do not understand why. The method to load the images is the same:

   public static Image loadImage(URL path) {
      try {
         return new ImageIcon(path).getImage();
      } catch (Exception e) {   
         Log.errln(ERROR + "exception: " + e);
      }
      
      return null;
   }

   public static BufferedImage toBufferedImage(Image image) {
      BufferedImage bi = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_ARGB);
      bi.getGraphics().drawImage(image, 0, 0, null);
      bi.getGraphics().dispose();
      
      return bi;
   }


I load the image in Image Object after I convert it in BufferedImage. Are the methods right or not?

[fletchergames]

I'm not sure it would cause that sort of problem, but I believe your toBufferdImage code should be:

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public static BufferedImage toBufferedImage(Image image) {       BufferedImage bi = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_ARGB);       Graphics g = bi.createGraphics();       g.drawImage(image, 0, 0, null);       g.dispose();             return bi;    }

The main thing is that I don't think you count on getGraphics to return the same Graphics object every time.  Hence, you should get the object once.  I also used createGraphics instead of getGraphics because that's the more "normal" method to call for a BufferedImage.

This is the code I've been using for loading images:

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public static BufferedImage bufferImage(final Image image) {    if(image == null)       return null;    //this enables transparency and makes the Image more likely to be a managed image    BufferedImage buffer = createImage(image.getWidth(null), image.getHeight(null));    Graphics2D g2 = buffer.createGraphics();    g2.drawImage(image, 0, 0, null);    g2.dispose();    return buffer; } //end bufferImage public static BufferedImage createImage(final int width, final int height) {    return createImage(width, height, true); } //end createImage public static BufferedImage createImage(final int width, final int height,    final boolean bAllowTransparency) {    //get the GraphicsConfiguration    GraphicsConfiguration graphicsConfiguration = GraphicsEnvironment.       getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();    //this enables/disables transparency and makes the Image more likely to be managed    return graphicsConfiguration.createCompatibleImage(width, height,       bAllowTransparency ? Transparency.BITMASK : Transparency.OPAQUE); } //end createImage public static BufferedImage loadImage(final InputStream inputStream) {    //load the file    BufferedImage image = null;    try {       image = ImageIO.read(inputStream);    } catch(Exception exception) {       if(image == null)          return null;    }    return bufferImage(image); } //end loadImage

It's a bit more complicated than it has to be because I use the buffer/create methods for creating images too.

[Alexian]

Understood.
I will try, thanks man!