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cristisor · 09-22-2009, 06:37 AM

Hi,
I'm porting a game from MIDP to the BB API but the Screen classes' double buffering doesn't work like in GameCanvas. I can't do all the painting in the paint(g) method so I created an auxiliary buffer and in paint I draw the buffer, but I still get the flickerings:

Code:

theBuffer = new Bitmap(screenWidth, screenHeight);
theGraphics = Graphics.create(theBuffer);

protected void paint(Graphics graphics) {
    super.paint(graphics);
    graphics.pushContext(new XYRect(0, 0, screenWidth, screenHeight), 0, 0);
    graphics.drawBitmap(0, 0, theBuffer.getWidth(), theBuffer.getHeight(), theBuffer, 0, 0);
    graphics.popContext();
}

I draw everything in "theGraphics".

09-22-2009, 06:37 AM	#1
cristisor Knows Where the Search Button Is Join Date: Jul 2009 Model: 8800 PIN: N/A Carrier: Vodafone Posts: 15	How to implement double buffering? Please Login to Remove! Hi, I'm porting a game from MIDP to the BB API but the Screen classes' double buffering doesn't work like in GameCanvas. I can't do all the painting in the paint(g) method so I created an auxiliary buffer and in paint I draw the buffer, but I still get the flickerings: Code: theBuffer = new Bitmap(screenWidth, screenHeight); theGraphics = Graphics.create(theBuffer); protected void paint(Graphics graphics) { super.paint(graphics); graphics.pushContext(new XYRect(0, 0, screenWidth, screenHeight), 0, 0); graphics.drawBitmap(0, 0, theBuffer.getWidth(), theBuffer.getHeight(), theBuffer, 0, 0); graphics.popContext(); } I draw everything in "theGraphics".
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