StrikeDisposalCrashTest.java revision 14851:980da45565c8 
1205147Sedwin/*
2205147Sedwin * Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved.
3205147Sedwin * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4205147Sedwin *
5205147Sedwin * This code is free software; you can redistribute it and/or modify it
6205147Sedwin * under the terms of the GNU General Public License version 2 only, as
7205147Sedwin * published by the Free Software Foundation.
8205147Sedwin *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/**
25 * @test
26 * @key headful
27 * @bug 6705443
28 * @summary tests that we don't crash during exit if font strikes were disposed
29 * during the lifetime of the application
30 *
31 * @run main/othervm -Dsun.java2d.font.reftype=weak StrikeDisposalCrashTest
32 * @run main/othervm -Dsun.java2d.font.reftype=weak -Dsun.java2d.noddraw=true StrikeDisposalCrashTest
33 * @run main/othervm -Dsun.java2d.font.reftype=weak -Dsun.java2d.opengl=True StrikeDisposalCrashTest
34 */
35
36import java.awt.Font;
37import java.awt.Frame;
38import java.awt.Graphics2D;
39import java.awt.GraphicsConfiguration;
40import java.awt.GraphicsDevice;
41import java.awt.GraphicsEnvironment;
42import java.awt.RenderingHints;
43import java.awt.Toolkit;
44import java.awt.image.VolatileImage;
45
46public class StrikeDisposalCrashTest {
47
48    public static void main(String[] args) {
49        System.setProperty("sun.java2d.font.reftype", "weak");
50
51        GraphicsDevice gd[] =
52            GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices();
53
54        Frame frames[] = new Frame[gd.length];
55        for (int i = 0; i < frames.length; i++) {
56            GraphicsConfiguration gc = gd[i].getDefaultConfiguration();
57            Frame f = new Frame("Frame on "+gc, gc);
58            f.setSize(100, 100);
59            f.setLocation(gc.getBounds().x, gc.getBounds().y);
60            f.pack();
61            frames[i] = f;
62        }
63
64        Font f1 = new Font("Dialog", Font.PLAIN, 10);
65        Font f2 = new Font("Dialog", Font.ITALIC, 12);
66
67        for (int i = 0; i < frames.length/2; i++) {
68            // making sure the glyphs are cached in the accel. cache on
69            // one frame, then the other
70            renderText(frames[i], f1);
71            renderText(frames[frames.length -1 - i], f1);
72
73            // and now the other way around, with different glyphs
74            renderText(frames[frames.length -1 - i], f2);
75            renderText(frames[i], f2);
76        }
77
78        // try to force strike disposal (note that we have to use
79        // -Dsun.java2d.font.reftype=weak to facilitate the disposal)
80
81        System.gc();
82        System.runFinalization();
83        System.gc();
84        System.runFinalization();
85
86        for (Frame f : frames) {
87            f.dispose();
88        }
89
90        System.err.println("Exiting. If the test crashed after this it FAILED");
91    }
92
93    private static final String text =
94        "The quick brown fox jumps over the lazy dog 1234567890";
95    private static void renderText(Frame frame, Font f1) {
96        VolatileImage vi = frame.createVolatileImage(256, 32);
97        vi.validate(frame.getGraphicsConfiguration());
98
99        Graphics2D g = vi.createGraphics();
100        g.setFont(f1);
101        g.drawString(text, 0, vi.getHeight()/2);
102        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
103                           RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
104        g.drawString(text, 0, vi.getHeight()/2);
105        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
106                           RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
107        g.drawString(text, 0, vi.getHeight()/2);
108        Toolkit.getDefaultToolkit().sync();
109    }
110}
111