Intermediate Images
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.image.BufferedImage;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
/*
* IntermediateImages.java
*
* Created on May 2, 2007, 10:58 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 IntermediateImages extends JComponent {
private static final int SCALE_X = 20;
private static final int SMILEY_X = 200;
private static final int DIRECT_Y = 10;
private static final int INTERMEDIATE_Y = 260;
private static final int SMILEY_SIZE = 100;
private static BufferedImage picture = null;
private BufferedImage scaledImage = null;
private BufferedImage smileyImage = null;
private static final double SCALE_FACTOR = .1;
private int scaleW, scaleH;
/** Creates a new instance of IntermediateImages */
public IntermediateImages() {
try {
URL url = getClass().getResource("A.jpg");
picture = ImageIO.read(url);
scaleW = (int)(SCALE_FACTOR * picture.getWidth());
scaleH = (int)(SCALE_FACTOR * picture.getHeight());
} catch (Exception e) {
System.out.println("Problem reading image file: " + e);
System.exit(0);
}
}
/**
* Draws both the direct and intermediate-image versions of a
* scaled-image, timing both variations.
*/
private void drawScaled(Graphics g) {
long startTime, endTime, totalTime;
// Scaled image
((Graphics2D)g).setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
startTime = System.nanoTime();
for (int i = 0; i < 100; ++i) {
g.drawImage(picture, SCALE_X, DIRECT_Y, scaleW, scaleH, null);
}
endTime = System.nanoTime();
totalTime = (endTime - startTime) / 1000000;
g.setColor(Color.BLACK);
g.drawString("Direct: " + ((float)totalTime/100) + " ms",
SCALE_X, DIRECT_Y + scaleH + 20);
System.out.println("scaled: " + totalTime);
// Intermediate Scaled
// First, create the intermediate image
if (scaledImage == null ||
scaledImage.getWidth() != scaleW ||
scaledImage.getHeight() != scaleH)
{
GraphicsConfiguration gc = getGraphicsConfiguration();
scaledImage = gc.createCompatibleImage(scaleW, scaleH);
Graphics gImg = scaledImage.getGraphics();
((Graphics2D)gImg).setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
gImg.drawImage(picture, 0, 0, scaleW, scaleH, null);
}
// Now, copy the intermediate image into place
startTime = System.nanoTime();
for (int i = 0; i < 100; ++i) {
g.drawImage(scaledImage, SCALE_X, INTERMEDIATE_Y, null);
}
endTime = System.nanoTime();
totalTime = (endTime - startTime) / 1000000;
g.drawString("Intermediate: " + ((float)totalTime/100) + " ms",
SCALE_X, INTERMEDIATE_Y + scaleH + 20);
System.out.println("Intermediate scaled: " + totalTime);
}
private void renderSmiley(Graphics g, int x, int y) {
Graphics2D g2d = (Graphics2D)g.create();
// Yellow face
g2d.setColor(Color.yellow);
g2d.fillOval(x, y, SMILEY_SIZE, SMILEY_SIZE);
// Black eyes
g2d.setColor(Color.black);
g2d.fillOval(x + 30, y + 30, 8, 8);
g2d.fillOval(x + 62, y + 30, 8, 8);
// Black outline
g2d.drawOval(x, y, SMILEY_SIZE, SMILEY_SIZE);
// Black smile
g2d.setStroke(new BasicStroke(3.0f));
g2d.drawArc(x + 20, y + 20, 60, 60, 190, 160);
g2d.dispose();
}
/**
* Draws both the direct and intermediate-image versions of a
* smiley face, timing both variations.
*/
private void drawSmiley(Graphics g) {
long startTime, endTime, totalTime;
// Draw smiley directly
startTime = System.nanoTime();
for (int i = 0; i < 100; ++i) {
renderSmiley(g, SMILEY_X, DIRECT_Y);
}
endTime = System.nanoTime();
totalTime = (endTime - startTime) / 1000000;
g.setColor(Color.BLACK);
g.drawString("Direct: " + ((float)totalTime/100) + " ms",
SMILEY_X, DIRECT_Y + SMILEY_SIZE + 20);
System.out.println("Direct: " + totalTime);
// Intermediate Smiley
// First, create the intermediate image if necessary
if (smileyImage == null) {
GraphicsConfiguration gc = getGraphicsConfiguration();
smileyImage = gc.createCompatibleImage(
SMILEY_SIZE + 1, SMILEY_SIZE + 1, Transparency.BITMASK);
Graphics2D gImg = (Graphics2D)smileyImage.getGraphics();
renderSmiley(gImg, 0, 0);
gImg.dispose();
}
// Now, copy the intermediate image
startTime = System.nanoTime();
for (int i = 0; i < 100; ++i) {
g.drawImage(smileyImage, SMILEY_X, INTERMEDIATE_Y, null);
}
endTime = System.nanoTime();
totalTime = (endTime - startTime) / 1000000;
g.drawString("Intermediate: " + ((float)totalTime/100) + " ms",
SMILEY_X, INTERMEDIATE_Y + SMILEY_SIZE + 20);
System.out.println("intermediate smiley: " + totalTime);
}
protected void paintComponent(Graphics g) {
g.setColor(Color.WHITE);
g.fillRect(0, 0, getWidth(), getHeight());
drawScaled(g);
drawSmiley(g);
}
private static void createAndShowGUI() {
JFrame f = new JFrame("IntermediateImages");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(360, 540);
f.add(new IntermediateImages());
f.setVisible(true);
}
public static void main(String args[]) {
Runnable doCreateAndShowGUI = new Runnable() {
public void run() {
createAndShowGUI();
}
};
SwingUtilities.invokeLater(doCreateAndShowGUI);
}
}
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