public void beginExecution() {
if (cam == null) {
int numBuffers = 2;
env = GraphicsEnvironment.getLocalGraphicsEnvironment();
device = env.getDefaultScreenDevice();
// MultiBufferTest test = new MultiBufferTest(numBuffers, device);
try {
GraphicsConfiguration gc = device.getDefaultConfiguration();
mainFrame = new Frame(gc);
mainFrame.setUndecorated(true);
mainFrame.setIgnoreRepaint(true);
device.setFullScreenWindow(mainFrame);
if (device.isDisplayChangeSupported()) {
chooseBestDisplayMode(device);
}
mainFrame.createBufferStrategy(numBuffers);
bufferStrategy = mainFrame.getBufferStrategy();
} catch (Exception e) {
e.printStackTrace();
}
}
}
public MultiBufferTest(int numBuffers, GraphicsDevice device) {
try {
GraphicsConfiguration gc = device.getDefaultConfiguration();
mainFrame = new Frame(gc);
mainFrame.setUndecorated(true);
mainFrame.setIgnoreRepaint(true);
device.setFullScreenWindow(mainFrame);
// if (device.isDisplayChangeSupported()) {
// chooseBestDisplayMode(device);
// }
Rectangle bounds = mainFrame.getBounds();
mainFrame.createBufferStrategy(numBuffers);
BufferStrategy bufferStrategy = mainFrame.getBufferStrategy();
for (float lag = 2000.0f; lag > 0.00000006f; lag = lag / 1.33f) {
System.out.println("lag = " + lag);
for (int i = 0; i < numBuffers; i++) {
Graphics g = bufferStrategy.getDrawGraphics();
if (!bufferStrategy.contentsLost()) {
g.setColor(COLORS[i]);
// g.fillRect(0,0,bounds.width, bounds.height);
g.fillRect(0, 0, 20, 20);
bufferStrategy.show();
g.dispose();
}
try {
Thread.sleep((int) lag);
} catch (InterruptedException e) {
}
}
}
} catch (Exception e) {
logger.error(e.getMessage(), e);
} finally {
device.setFullScreenWindow(null);
}
}