[JAVA2D] Question about recommended render loop for BufferStrategy...

[Ken Warner]

According to the documentation on:
http://java.sun.com/javase/6/docs/api/java/awt/image/BufferStrategy.html

One is supposed to
do {
       Graphics graphics = strategy.getDrawGraphics();
       //render here
       graphics.dispose();
} while (strategy.contentsRestored());

So I did that where I render:
do {
   do {
         bg = (Graphics2D)bs.getDrawGraphics();
         mis.newPixels(pixels, cm, 0, thisW);
         bg.drawImage(canvasImage, 0, 0, thisW, thisH, this);
         drawAttribution();
         bg.dispose();
    } while (bs.contentsRestored());
    bs.show();
} while (bs.contentsLost());

So I'm disposing of bg -- the BufferStrategy graphics after I render.

The question is -- how come I can still use the buffer graphics (bg)
at other times to draw stuff.  My applet draws onto the BufferStrategy (bs)
in many other places at various times.  And it works and all the while
I have dispose()'ed of the buffergraphics (bg) and the loop above is the only
place I getDrawGraphics();

For example -- here's my paint() method -- no problem -- no drawGraphics.

public void paint(Graphics g)
{
       //System.err.println("paint()");
       bg.drawImage(canvasImage, 0, 0, thisW, thisH, this);
       if(DRAWATT)
           drawAttribution();
       bs.show();
}

I don't understand that...

Ken

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