Bad vs. Good Primitive Rendering
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.geom.Line2D;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
/*
* OptimalPrimitives.java
*
* Created on May 2, 2007, 11:06 AM
*
* Copyright (c) 2007, Sun Microsystems, Inc
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the TimingFramework project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
*
* @author Chet
*/
public class OptimalPrimitives extends JComponent {
private static final int LINE_X = 100;
private static final int RECT_X = 200;
private static final int TEXT_X = 250;
private static final int BAD_Y = 60;
private static final int GOOD_Y = 160;
private static final int ITERATIONS = 1000;
/** Creates a new instance of OptimalPrimitives */
public OptimalPrimitives() {
}
protected void paintComponent(Graphics g) {
Graphics2D g2d = (Graphics2D)g;
long startTime, endTime, totalTime;
g.setColor(Color.WHITE);
g.fillRect(0, 0, getWidth(), getHeight());
g.setColor(Color.BLACK);
g.drawString("Bad vs. Good Primitive Rendering", 50, 20);
g.drawString("(" + ITERATIONS + " iterations)", 100, 35);
g.drawString("Bad: ", 10, BAD_Y + 30);
g.drawString("Good: ", 10, GOOD_Y + 30);
// Bad line
Shape line = new Line2D.Double(LINE_X, BAD_Y, LINE_X + 50,
BAD_Y + 50);
startTime = System.nanoTime();
for (int i = 0; i < ITERATIONS; ++i) {
g2d.draw(line);
}
endTime = System.nanoTime();
totalTime = (endTime - startTime) / 1000000;
System.out.println("bad line = " + totalTime);
g.drawString(totalTime + " ms", LINE_X, BAD_Y + 70);
// Good line
startTime = System.nanoTime();
for (int i = 0; i < ITERATIONS; ++i) {
g.drawLine(LINE_X, GOOD_Y, LINE_X + 50, GOOD_Y + 50);
}
endTime = System.nanoTime();
totalTime = (endTime - startTime) / 1000000;
System.out.println("good line = " + totalTime);
g.drawString(totalTime + " ms", LINE_X, GOOD_Y + 70);
// Bad rect
Shape rect = new Rectangle(RECT_X, BAD_Y, 50, 50);
startTime = System.nanoTime();
for (int i = 0; i < ITERATIONS; ++i) {
g2d.fill(rect);
}
endTime = System.nanoTime();
totalTime = (endTime - startTime) / 1000000;
System.out.println("bad rect = " + totalTime);
g.drawString(totalTime + " ms", RECT_X, BAD_Y + 70);
// Good rect
startTime = System.nanoTime();
for (int i = 0; i < ITERATIONS; ++i) {
g.fillRect(RECT_X, GOOD_Y, 50, 50);
}
endTime = System.nanoTime();
totalTime = (endTime - startTime) / 1000000;
System.out.println("good rect = " + totalTime);
g.drawString(totalTime + " ms", RECT_X, GOOD_Y + 70);
}
private static void createAndShowGUI() {
JFrame f = new JFrame("OptimalPrimitives");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(320, 300);
f.add(new OptimalPrimitives());
f.setVisible(true);
}
public static void main(String args[]) {
Runnable doCreateAndShowGUI = new Runnable() {
public void run() {
createAndShowGUI();
}
};
SwingUtilities.invokeLater(doCreateAndShowGUI);
}
}
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