BitmapFontRate.java

/*
 * Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */
package net.java.dev.lwuit.speed;

import com.sun.lwuit.Dialog;
import com.sun.lwuit.Font;
import com.sun.lwuit.Form;
import com.sun.lwuit.Graphics;
import com.sun.lwuit.util.Resources;
import java.io.IOException;

/**
 * Tests how fast drawing can be performed on the device with LWUIT
 *
 * @author Shai Almog
 */
public class BitmapFontRate extends Form {
    private static int averageFramerate;
    
    private static final int TEST_DURATION = 10000;
    private static final int RAMP_UP_DURATION = 1000;
    private long startTime = System.currentTimeMillis();
    private static int paintCalls;
    
    public static int getFramecount() {
        return paintCalls;
    }
    
    private Font[] fonts;
    
    public BitmapFontRate() {
        try {
            Resources res = Resources.open("/fonts.res");
            fonts = new Font[] {
                res.getFont("smallFont"),
                res.getFont("mediumFont"),
                res.getFont("largeFont"),
                res.getFont("hugeFont"),
            };
            new Thread() {

                public void run() {
                    while (System.currentTimeMillis() - startTime < TEST_DURATION) {
                        repaint();
                        try {
                            Thread.sleep(1);
                        } catch (InterruptedException ex) {}
                    }
                    averageFramerate = paintCalls / ((TEST_DURATION - RAMP_UP_DURATION) / 1000);
                    new ScalingRate();
                }
            }.start();
            show();
        } catch (IOException ex) {
            ex.printStackTrace();
            Dialog.show("Benchmark Failed!", "Bitmap Font benchmark failed on IOException: " + ex.getMessage(), "OK", null);
            new ScalingRate();
        }
    }
    
    public static int getAverageFramerate() {
        return averageFramerate;
    }
    
    public void paint(Graphics g) {
        if(System.currentTimeMillis() - startTime > RAMP_UP_DURATION) {
            paintCalls++;
        }
        g.setColor((int)(System.currentTimeMillis() % 0xffffff));
        
        int y = 0;
        for(int iter = 0 ; iter < fonts.length ; iter++) {
            g.setFont(fonts[iter]);
            g.drawString(fonts[iter].getCharset(), 0, y);
            y += fonts[iter].getHeight() + 2;
        }
    }
}