Re: [JAVA2D] BufferStrategy not working on Windows?

2006-07-26 Thread java2d 
AS a footnote to this, the reason I was using a frame was because I couldn't 
figure out how to get keyboard focus otherwise.

The solution I found was to add the key listener to the parent frame, rather 
than the window that is drawing.

William
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[JAVA2D] BufferStrategy not working on Windows?

2006-07-25 Thread java2d 
Hello,

Stupid question time. :-)

Why does the following code (correctly) display a black screen with white 
numbers under Linux, but just grey under Windows XP? Tested on Java 1.4 and 5 
under Windows, Java 1.4, 5, and 6 under Linux (it even works in Kaffe!).

I know I'm missing something obvious. :-P

Thanks!

William

[pre]import java.awt.*;
import java.awt.image.*;
import javax.swing.*;

public class BufferTest {
  public static void main(String args[]) {
JFrame frame;
Canvas canvas;
GraphicsDevice device;
BufferStrategy strategy;
DisplayMode mode;

canvas = new Canvas();
frame = new JFrame();
frame.setUndecorated(true);

canvas.setIgnoreRepaint(true);

device = 
GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
mode = device.getDisplayMode();

frame.setSize(mode.getWidth(), mode.getHeight());
frame.getContentPane().add(canvas);
device.setFullScreenWindow(frame);
frame.show();

try {
  canvas.createBufferStrategy(2);
  strategy = canvas.getBufferStrategy();

  for (int counter = 100; counter = 0; --counter) {
Graphics g = strategy.getDrawGraphics();
g.setColor(Color.BLACK);
g.fillRect(0, 0, mode.getWidth(), mode.getHeight());
g.setColor(Color.WHITE);
g.drawString(Integer.toString(counter), mode.getWidth() / 2, 
mode.getHeight() / 2);
g.dispose();
strategy.show();
Toolkit.getDefaultToolkit().beep();
Thread.sleep(100);
  }
} catch (Exception e) {
  e.printStackTrace();
} finally {
  device.setFullScreenWindow(null);
  System.exit(0);
}
  }
}
[/pre]
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Re: [JAVA2D] BufferStrategy not working on Windows?

2006-07-25 Thread Dmitri Trembovetski 
  Hi there,

  Stupid question time. :-)

  Not so stupid, actually. This is because of our bug, which I happy
  to report was fixed in mustang.

  To work around it, don't use Canvas, just create the BufferStrategy
  off your frame.

  Also, you might want to use Frame instead of JFrame - you don't want
  to bring Swing in if you don't use it..

  Thanks,
Dmitri
  Java2D Team


On Tue, Jul 25, 2006 at 02:37:40PM -0700, [EMAIL PROTECTED] wrote:
  Hello,
 
  Stupid question time. :-)
 
  Why does the following code (correctly) display a black screen with white 
  numbers under Linux, but just grey under Windows XP? Tested on Java 1.4 and 
  5 under Windows, Java 1.4, 5, and 6 under Linux (it even works in Kaffe!).
 
  I know I'm missing something obvious. :-P
 
  Thanks!
 
  William
 
  [pre]import java.awt.*;
  import java.awt.image.*;
  import javax.swing.*;
 
  public class BufferTest {
public static void main(String args[]) {
  JFrame frame;
  Canvas canvas;
  GraphicsDevice device;
  BufferStrategy strategy;
  DisplayMode mode;
 
  canvas = new Canvas();
  frame = new JFrame();
  frame.setUndecorated(true);
 
  canvas.setIgnoreRepaint(true);
 
  device = 
  GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
  mode = device.getDisplayMode();
 
  frame.setSize(mode.getWidth(), mode.getHeight());
  frame.getContentPane().add(canvas);
  device.setFullScreenWindow(frame);
  frame.show();
 
  try {
canvas.createBufferStrategy(2);
strategy = canvas.getBufferStrategy();
 
for (int counter = 100; counter = 0; --counter) {
  Graphics g = strategy.getDrawGraphics();
  g.setColor(Color.BLACK);
  g.fillRect(0, 0, mode.getWidth(), mode.getHeight());
  g.setColor(Color.WHITE);
  g.drawString(Integer.toString(counter), mode.getWidth() / 2, 
  mode.getHeight() / 2);
  g.dispose();
  strategy.show();
  Toolkit.getDefaultToolkit().beep();
  Thread.sleep(100);
}
  } catch (Exception e) {
e.printStackTrace();
  } finally {
device.setFullScreenWindow(null);
System.exit(0);
  }
}
  }
  [/pre]
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Re: [JAVA2D] BufferStrategy not working on Windows?

2006-07-25 Thread java2d 
Damn it, I was just about to chime in with the exact same fix! Insert 
explanantion of canvas being heavy weight and swing not working well with them 
until Mustang here

Yeh ditch the canvas thing completely. Just use the original frame.
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Re: [JAVA2D] BufferStrategy not working on Windows?

2006-07-25 Thread Dmitri Trembovetski 
  Well, if he were to just change JFrame to Frame (no
  lightweight/heavyweight issues), it still wouldn't work because of
  the (fullscreen/BufferStrategy-related) bug. But anyway, the
  workaround is indeed to ditch Canvas.

  Thanks,
Dmitri
  Java2D Team


On Tue, Jul 25, 2006 at 04:43:47PM -0700, [EMAIL PROTECTED] wrote:
  Damn it, I was just about to chime in with the exact same fix! Insert 
  explanantion of canvas being heavy weight and swing not working well with 
  them until Mustang here
 
  Yeh ditch the canvas thing completely. Just use the original frame.
  [Message sent by forum member 'fred34' (fred34)]
 
  http://forums.java.net/jive/thread.jspa?messageID=136539
 
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Re: [JAVA2D] BufferStrategy not working on Windows?

2006-07-25 Thread java2d 
Shoot, I figured it out about an hour after I posted, and couldn't get online 
until now.

As a footnote, on Windows 
GraphicsDevice.getDefaultConfiguration().getBufferCapabilities().isFullScreenRequred()
 returns true. That was what finally clued me in to the problem.
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