Java2D Performance Issues

I think I found a solution by researching and putting bits and pieces together from too many Google searches.

Here it is, comments and all:

private BufferedImage toCompatibleImage(BufferedImage image)
    // obtain the current system graphical settings
    GraphicsConfiguration gfxConfig = GraphicsEnvironment.

     * if image is already compatible and optimized for current system 
     * settings, simply return it
    if (image.getColorModel().equals(gfxConfig.getColorModel()))
        return image;

    // image is not optimized, so create a new image that is
    BufferedImage newImage = gfxConfig.createCompatibleImage(
            image.getWidth(), image.getHeight(), image.getTransparency());

    // get the graphics context of the new image to draw the old image on
    Graphics2D g2d = newImage.createGraphics();

    // actually draw the image and dispose of context no longer needed
    g2d.drawImage(image, 0, 0, null);

    // return the new optimized image
    return newImage; 

In my previous post, GraphicsConfiguration was what held the information needed to create optimized images on a system. It seems to work pretty well, but I would have thought Java would automatically do this for you. Obviously you can’t get too comfortable with Java. 🙂 I guess I ended up answering my own question. Oh well, hopefully it’ll help some of you I’ve seen trying to make use of Java for 2D games.

Leave a Comment