llvm-gcc-4.2/libjava/classpath/examples/gnu/classpath/examples/java2d/JNIOverhead.java - llvm-archive - Git at Google

 /* JNIOverhead.java - demonstrator for classpath/gcj fillrect performance issue
    Copyright (C) 2006 Free Software Foundation, Inc.

 This file is part of GNU Classpath examples.

 GNU Classpath is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2, or (at your option)
 any later version.

 GNU Classpath is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with GNU Classpath; see the file COPYING.  If not, write to the
 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 02110-1301 USA. */

 package gnu.classpath.examples.java2d;

 import gnu.classpath.examples.swing.DemoFactory;

 import java.awt.BorderLayout;
 import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;

 import javax.swing.JButton;
 import javax.swing.JCheckBox;
 import javax.swing.JComponent;
 import javax.swing.JFrame;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
 import javax.swing.SwingUtilities;

 /**
  * @author Norman Hendrich
  */
 public class JNIOverhead
   extends JPanel
   implements ActionListener
 {

   static JNIOverhead fillRectDemo;

   LCDCanvas lcd;
   Worker worker;
   JLabel label;
   JCheckBox translate;
   JCheckBox lines;

   int     nx = 128;
   int     ny = 64;
   int     matrix[][], future[][];
   int     generation = 0;

   // 20 msec, or 50 repaints per sec (theoretically)
   int     sleepMillis = 20;
   long    lastMillis = System.currentTimeMillis();

   boolean enableRepaints = true;

   /**
    * If true, test translation.
    */
   boolean testTranslation = false;

   /**
    * If true, paint lines rather than rectangles
    */
   boolean paintLines;

   public void actionPerformed(ActionEvent e)
   {
     if (e.getActionCommand().equals("CLOSE"))
     {
       System.exit(0);
     }
   }

   public JNIOverhead()
   {
     setSize(nx, ny);
     createContent();
   }

   public void createContent()
   {
     setLayout(new BorderLayout());

     JPanel p = new JPanel(new BorderLayout());
     lcd   = new LCDCanvas();
     label = new JLabel();
     label.setText("not running");

     translate = new JCheckBox("translate");
     translate.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent event)
       {
         testTranslation = translate.isSelected();
       }
     });

     lines = new JCheckBox("lines");
     lines.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent event)
       {
         paintLines = lines.isSelected();
       }
     });

     JPanel bottom = new JPanel();
     bottom.add(lines);
     bottom.add(translate);

     p.add(lcd, BorderLayout.CENTER);
     p.add(bottom, BorderLayout.SOUTH);
     p.add(label, BorderLayout.NORTH);
     add(p);
   }

   public void setSize(int _nx,int _ny )
   {
     nx = _nx;
     ny = _ny;
     matrix = new int[nx][ny];
     future = new int[nx][ny];
   }

   public void initFrameContent()
   {
     JPanel closePanel = new JPanel();
     JButton closeButton = new JButton("Close");
     closeButton.setActionCommand("CLOSE");
     closeButton.addActionListener(this);
     closePanel.add(closeButton);
     add(closePanel, BorderLayout.SOUTH);
   }

   public void setSleepMillis(int millis)
   {
     sleepMillis = millis;
   }

   public class LCDCanvas extends JPanel
   {
     private int   sx, sy;
     private Color activePixel  = new Color(30, 30, 40);
     private Color passivePixel = new Color(200, 180, 240);
     private Color gridPixel    = new Color(255, 240, 240);

     public LCDCanvas()
     {
       super();
       sx = 4 * nx;
       sy = 4 * ny;
     }

     public void paintComponent(Graphics g)
     {
       // for buffered drawing - not used atm
       // g.drawImage( buffer, 0, 0, null );
       long t1 = System.currentTimeMillis();

       g.setColor(gridPixel);
       g.fillRect(0, 0, sx, sy);

       Color pixelColor = null;

       int dx, dy;

       if (paintLines)
         {
           for (int ix = 0; ix < nx; ix++)
             for (int iy = 0; iy < ny; iy++)
               {
                 if (matrix[ix][iy] != 0)
                   pixelColor = activePixel;
                 else
                   pixelColor = passivePixel;

                 dx = 4 * ix;
                 dy = 4 * iy;
                 g.setColor(pixelColor);

                 if (testTranslation)
                   {
                     g.translate(dx, dy);
                     g.drawLine(0, 0, 5, 5);
                     g.translate(- dx, - dy);
                   }
                 else
                   g.drawLine(dx, dy, dx + 5, dy + 5);
               }
         }
       else
         for (int ix = 0; ix < nx; ix++)
           {
             for (int iy = 0; iy < ny; iy++)
               {
                 if (matrix[ix][iy] != 0)
                   pixelColor = activePixel;
                 else
                   pixelColor = passivePixel;

                 dx = 4 * ix;
                 dy = 4 * iy;
                 g.setColor(pixelColor);

                 if (testTranslation)
                   {
                     g.translate(dx, dy);
                     g.fillRect(0, 0, 3, 3);
                     g.translate(- dx, - dy);
                   }
                 else
                   g.fillRect(dx, dy, 3, 3);
               }
           }

       long t2 = System.currentTimeMillis();

       label.setText("paintComponent took " + (t2 - t1) + " msec. " + "("
                     + (nx * ny + 1) + " "
                     + (paintLines ? "drawLine" : "fillRect") + " calls)");

     }

     public Dimension getPreferredSize()
     {
       return new Dimension(sx,sy);
     }

     public Dimension getMinimumSize()
     {
       return new Dimension(sx,sy);
     }
   }

   public class Worker extends Thread
   {
     public void run()
     {
       boolean running = true;
       while(running)
         {
           iteration();

           if (enableRepaints)
             display();

           if (sleepMillis > 0)
             {
               try
                 {
                   Thread.sleep( sleepMillis );
                 }
               catch(InterruptedException ie)
                 {
                   running = false;
                 }
             }
         }
     }
   }

   /**
    * stupid animation algorithm: show binary representation of current
    * iteration.
    */
   public void iteration()
   {
     generation++;

     for (int i = 0; i < nx; i++)
       {
         long tmp1 = 1L << i;
         for (int j = 0; j < ny; j++)
           {
             // count neighbors
             long tmp2 = (1L << j);


             long tmp3 = generation & tmp1 & tmp2;
             if (tmp3 != 0)
               matrix[i][j] = 1;
             else
               matrix[i][j] = 0;
           }
     }

     if ((generation % 100) == 0)
       {
         long t = System.currentTimeMillis();
         //        System.out.println(
         //           " generation= " + generation +
         //           " iterations/sec= " + 100.0*1000/(t-lastMillis) );
         lastMillis = t;
       }
   }

   public void display()
   {
     lcd.repaint();
   }

   public static void usage()
   {
     System.out.println(
       "Usage: <java> FillRect2 [-sleep <millis>] [-size <int>] [-nopaint]\n"
     + "Example: jamvm FillRect2 -sleep 10 -size 100\n"
     );
     System.exit(0);
   }

   public static void main(String args[])
     throws Exception
   {
     fillRectDemo = new JNIOverhead();
     for (int i = 0; i < args.length; i++)
       {
         if ("-help".equals(args[i]))
           {
             usage();
           }
         if ("-sleep".equals(args[i]))
           {
             fillRectDemo.setSleepMillis( Integer.parseInt(args[i + 1]));
             i++;
           }
         if ("-size".equals(args[i]))
           {
             int size = Integer.parseInt(args[i + 1]);
             fillRectDemo.setSize(size, size);
             i++;
           }
         if ("-nopaint".equals(args[i]))
           {
             fillRectDemo.enableRepaints = false;
           }
       }

     SwingUtilities.invokeLater (new Runnable()
      {
        public void run()
        {

          fillRectDemo.initFrameContent();
          JFrame frame = new JFrame("FillRect performance test");
          frame.getContentPane().add(fillRectDemo);
          frame.pack();
          frame.show();
          fillRectDemo.worker = fillRectDemo.new Worker();
          fillRectDemo.worker.start();
        }
       });
   }

   /**
    * Returns a DemoFactory that creates a SliderDemo.
    *
    * @return a DemoFactory that creates a SliderDemo
    */
   public static DemoFactory createDemoFactory()
   {
     return new DemoFactory()
     {
       public JComponent createDemo()
       {
         fillRectDemo = new JNIOverhead();
         SwingUtilities.invokeLater
         (new Runnable()
          {
            public void run()
            {
              fillRectDemo.worker = fillRectDemo.new Worker();
              fillRectDemo.worker.start();
            }
          });
         return fillRectDemo;
       }
     };
   }
 }
	/* JNIOverhead.java - demonstrator for classpath/gcj fillrect performance issue
	Copyright (C) 2006 Free Software Foundation, Inc.

	This file is part of GNU Classpath examples.

	GNU Classpath is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2, or (at your option)
	any later version.

	GNU Classpath is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with GNU Classpath; see the file COPYING. If not, write to the
	Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	02110-1301 USA. */

	package gnu.classpath.examples.java2d;

	import gnu.classpath.examples.swing.DemoFactory;

	import java.awt.BorderLayout;
	import java.awt.Color;
	import java.awt.Dimension;
	import java.awt.Graphics;
	import java.awt.event.ActionEvent;
	import java.awt.event.ActionListener;

	import javax.swing.JButton;
	import javax.swing.JCheckBox;
	import javax.swing.JComponent;
	import javax.swing.JFrame;
	import javax.swing.JLabel;
	import javax.swing.JPanel;
	import javax.swing.SwingUtilities;

	/**
	* @author Norman Hendrich
	*/
	public class JNIOverhead
	extends JPanel
	implements ActionListener
	{

	static JNIOverhead fillRectDemo;

	LCDCanvas lcd;
	Worker worker;
	JLabel label;
	JCheckBox translate;
	JCheckBox lines;

	int nx = 128;
	int ny = 64;
	int matrix[][], future[][];
	int generation = 0;

	// 20 msec, or 50 repaints per sec (theoretically)
	int sleepMillis = 20;
	long lastMillis = System.currentTimeMillis();

	boolean enableRepaints = true;

	/**
	* If true, test translation.
	*/
	boolean testTranslation = false;

	/**
	* If true, paint lines rather than rectangles
	*/
	boolean paintLines;

	public void actionPerformed(ActionEvent e)
	{
	if (e.getActionCommand().equals("CLOSE"))
	{
	System.exit(0);
	}
	}

	public JNIOverhead()
	{
	setSize(nx, ny);
	createContent();
	}

	public void createContent()
	{
	setLayout(new BorderLayout());

	JPanel p = new JPanel(new BorderLayout());
	lcd = new LCDCanvas();
	label = new JLabel();
	label.setText("not running");

	translate = new JCheckBox("translate");
	translate.addActionListener(new ActionListener()
	{
	public void actionPerformed(ActionEvent event)
	{
	testTranslation = translate.isSelected();
	}
	});

	lines = new JCheckBox("lines");
	lines.addActionListener(new ActionListener()
	{
	public void actionPerformed(ActionEvent event)
	{
	paintLines = lines.isSelected();
	}
	});

	JPanel bottom = new JPanel();
	bottom.add(lines);
	bottom.add(translate);

	p.add(lcd, BorderLayout.CENTER);
	p.add(bottom, BorderLayout.SOUTH);
	p.add(label, BorderLayout.NORTH);
	add(p);
	}

	public void setSize(int _nx,int _ny )
	{
	nx = _nx;
	ny = _ny;
	matrix = new int[nx][ny];
	future = new int[nx][ny];
	}

	public void initFrameContent()
	{
	JPanel closePanel = new JPanel();
	JButton closeButton = new JButton("Close");
	closeButton.setActionCommand("CLOSE");
	closeButton.addActionListener(this);
	closePanel.add(closeButton);
	add(closePanel, BorderLayout.SOUTH);
	}

	public void setSleepMillis(int millis)
	{
	sleepMillis = millis;
	}

	public class LCDCanvas extends JPanel
	{
	private int sx, sy;
	private Color activePixel = new Color(30, 30, 40);
	private Color passivePixel = new Color(200, 180, 240);
	private Color gridPixel = new Color(255, 240, 240);

	public LCDCanvas()
	{
	super();
	sx = 4 * nx;
	sy = 4 * ny;
	}

	public void paintComponent(Graphics g)
	{
	// for buffered drawing - not used atm
	// g.drawImage( buffer, 0, 0, null );
	long t1 = System.currentTimeMillis();

	g.setColor(gridPixel);
	g.fillRect(0, 0, sx, sy);

	Color pixelColor = null;

	int dx, dy;

	if (paintLines)
	{
	for (int ix = 0; ix < nx; ix++)
	for (int iy = 0; iy < ny; iy++)
	{
	if (matrix[ix][iy] != 0)
	pixelColor = activePixel;
	else
	pixelColor = passivePixel;

	dx = 4 * ix;
	dy = 4 * iy;
	g.setColor(pixelColor);

	if (testTranslation)
	{
	g.translate(dx, dy);
	g.drawLine(0, 0, 5, 5);
	g.translate(- dx, - dy);
	}
	else
	g.drawLine(dx, dy, dx + 5, dy + 5);
	}
	}
	else
	for (int ix = 0; ix < nx; ix++)
	{
	for (int iy = 0; iy < ny; iy++)
	{
	if (matrix[ix][iy] != 0)
	pixelColor = activePixel;
	else
	pixelColor = passivePixel;

	dx = 4 * ix;
	dy = 4 * iy;
	g.setColor(pixelColor);

	if (testTranslation)
	{
	g.translate(dx, dy);
	g.fillRect(0, 0, 3, 3);
	g.translate(- dx, - dy);
	}
	else
	g.fillRect(dx, dy, 3, 3);
	}
	}

	long t2 = System.currentTimeMillis();

	label.setText("paintComponent took " + (t2 - t1) + " msec. " + "("
	+ (nx * ny + 1) + " "
	+ (paintLines ? "drawLine" : "fillRect") + " calls)");

	}

	public Dimension getPreferredSize()
	{
	return new Dimension(sx,sy);
	}

	public Dimension getMinimumSize()
	{
	return new Dimension(sx,sy);
	}
	}

	public class Worker extends Thread
	{
	public void run()
	{
	boolean running = true;
	while(running)
	{
	iteration();

	if (enableRepaints)
	display();

	if (sleepMillis > 0)
	{
	try
	{
	Thread.sleep( sleepMillis );
	}
	catch(InterruptedException ie)
	{
	running = false;
	}
	}
	}
	}
	}

	/**
	* stupid animation algorithm: show binary representation of current
	* iteration.
	*/
	public void iteration()
	{
	generation++;

	for (int i = 0; i < nx; i++)
	{
	long tmp1 = 1L << i;
	for (int j = 0; j < ny; j++)
	{
	// count neighbors
	long tmp2 = (1L << j);


	long tmp3 = generation & tmp1 & tmp2;
	if (tmp3 != 0)
	matrix[i][j] = 1;
	else
	matrix[i][j] = 0;
	}
	}

	if ((generation % 100) == 0)
	{
	long t = System.currentTimeMillis();
	// System.out.println(
	// " generation= " + generation +
	// " iterations/sec= " + 100.0*1000/(t-lastMillis) );
	lastMillis = t;
	}
	}

	public void display()
	{
	lcd.repaint();
	}

	public static void usage()
	{
	System.out.println(
	"Usage: <java> FillRect2 [-sleep <millis>] [-size <int>] [-nopaint]\n"
	+ "Example: jamvm FillRect2 -sleep 10 -size 100\n"
	);
	System.exit(0);
	}

	public static void main(String args[])
	throws Exception
	{
	fillRectDemo = new JNIOverhead();
	for (int i = 0; i < args.length; i++)
	{
	if ("-help".equals(args[i]))
	{
	usage();
	}
	if ("-sleep".equals(args[i]))
	{
	fillRectDemo.setSleepMillis( Integer.parseInt(args[i + 1]));
	i++;
	}
	if ("-size".equals(args[i]))
	{
	int size = Integer.parseInt(args[i + 1]);
	fillRectDemo.setSize(size, size);
	i++;
	}
	if ("-nopaint".equals(args[i]))
	{
	fillRectDemo.enableRepaints = false;
	}
	}

	SwingUtilities.invokeLater (new Runnable()
	{
	public void run()
	{

	fillRectDemo.initFrameContent();
	JFrame frame = new JFrame("FillRect performance test");
	frame.getContentPane().add(fillRectDemo);
	frame.pack();
	frame.show();
	fillRectDemo.worker = fillRectDemo.new Worker();
	fillRectDemo.worker.start();
	}
	});
	}

	/**
	* Returns a DemoFactory that creates a SliderDemo.
	*
	* @return a DemoFactory that creates a SliderDemo
	*/
	public static DemoFactory createDemoFactory()
	{
	return new DemoFactory()
	{
	public JComponent createDemo()
	{
	fillRectDemo = new JNIOverhead();
	SwingUtilities.invokeLater
	(new Runnable()
	{
	public void run()
	{
	fillRectDemo.worker = fillRectDemo.new Worker();
	fillRectDemo.worker.start();
	}
	});
	return fillRectDemo;
	}
	};
	}
	}