Name: rmT116609 Date: 03/20/2003


FULL PRODUCT VERSION :
java version "1.4.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
Java HotSpot(TM) Client VM (build 1.4.1_01-b01, mixed mode)

versus

java version "1.3.1_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_03-b03)
Java HotSpot(TM) Client VM (build 1.3.1_03-b03, mixed mode)


FULL OS VERSION :
SunOS trust 5.8 Generic_108528-18 sun4u sparc SUNW,Sun-Blade-100

EXTRA RELEVANT SYSTEM CONFIGURATION :
24-bit color

A DESCRIPTION OF THE PROBLEM :
The sample program below takes about 93 seconds to execute the grabPixels() call under JDK 1.4.1 on a Solaris 8, Blade 100. It takes 0.16 seconds
under JDK 1.3.1. (For systems with 8-bit color, the time is about 0.1 seconds under both JDKs.)


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the code on a 24-bit color Blade 100, Solaris 8 under JDK1.4.1 and JDK1.3.1. The output to standard out shows the times for the grabPixels call

EXPECTED VERSUS ACTUAL BEHAVIOR :
execution time of about 200 milliseconds in all cases
JDK 1.4.1 output is about 93000 milliseconds
JDK 1.3.1 output is about 160 millseconds

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.swing.*;

public class Pixel implements ActionListener {

   private JButton b;
   private JFrame f;

   public Pixel () {
  
f = new JFrame("Copy Frame");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(700,500);
Container cp = f.getContentPane();
JPanel p = new JPanel();
cp.add(p);
b = new JButton("Copy It");
b.addActionListener (this);
p.add(b);
f.setVisible( true);
   }

   public void actionPerformed (ActionEvent e) {

if (e.getSource() == b) {
Dimension size = f.getSize();
Image im = f.createImage(size.width,size.height);
Graphics gr = im.getGraphics();
f.printAll(gr);

int [] pixels = new int[size.width*size.height];
PixelGrabber pg = new PixelGrabber (im, 0, 0,
size.width, size.height, pixels, 0, size.width);
try {
long start = System.currentTimeMillis();
System.out.println("starting");
pg.grabPixels();
long end = System.currentTimeMillis();
System.out.println("end after "+ (end-start) + " ms");
} catch (InterruptedException ie) {
System.out.println("grab exception="+ie);
}
}
   }

   public static void main (String[] args) {
new Pixel();
   }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Replace

Image im = f.createImage(size.width,size.height);

with

BufferedImage im = new BufferedImage(size.width,size.height, BufferedImage.TYPE_INT_RGB);
(Review ID: 182843)
======================================================================

Name: jk109818 Date: 07/23/2003


FULL PRODUCT VERSION :
java version "1.4.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-b21)
Java HotSpot(TM) Client VM (build 1.4.1-b21, mixed mode)

FULL OPERATING SYSTEM VERSION :
SunOS brooke 5.9 Generic_112233-01 sun4u sparc SUNW,Ultra-1

ADDITIONAL OPERATING SYSTEMS :
Linux gescher 2.4.19-PMC-SMP #3 SMP Mon Sep 9 22:33:11 CEST 2002 i686 unknown

A DESCRIPTION OF THE PROBLEM :
PixelGrabber + setenv DISPLAY slower in java 1.4

PixelGrabber is too slow in version 1.4 when I'm running a program in a remote machine but displaying the windows in my workstation

REGRESSION. Last worked in version 1.3

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Log in on another machine; setenv DISPLAY to the machine you are
2. Run the given program (on the machine you've just logged in) with java 1.2/1.3 and 1.4.

EXPECTED VERSUS ACTUAL BEHAVIOR :
PixelGrabber should be so fast as in version 1.3.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
output, v.1.3.0:
Starting
9
output, v.1.4.1:
Starting
27074

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.*;
import java.awt.image.*;

public class Foo {


    public static void main(String[] args) throws Exception {
        String s = "DonaudampfschifffahrtsgesellschaftskapitM-^OÀ»n";
        Frame f = new Frame();
        f.setSize(300, 300);
        f.show();

        Thread.sleep(1500);

        Font font = f.getFont();
        FontMetrics fm = f.getFontMetrics(font);
        int h = fm.getMaxAscent() + fm.getMaxDescent() + 2;
        long sum = 0;

        for(int i = 0; i < 10; i++) {
            int w = fm.stringWidth(s) + 2;
            PixelGrabber pg = new PixelGrabber(f.createImage(w, h), 0, 0, w, h, new int[w*h], 0, w);

            long start = System.currentTimeMillis();
            pg.grabPixels();
            long end = System.currentTimeMillis();
            sum += end - start;
        }

        System.out.println(sum);
        System.exit(0);
    }

}



---------- END SOURCE ----------
(Review ID: 166897)
======================================================================