DrawHugeImageTest.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
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 * @test
25 * @key headful
26 * @bug     8040617
27 * @summary Test verifies that an attempt to get an accelerated copy of
28 *          a huge buffered image does not result in an OOME.
29 *
30 * @run     main DrawHugeImageTest
31 */
32
33import java.awt.Color;
34import java.awt.Graphics2D;
35import java.awt.GraphicsConfiguration;
36import java.awt.GraphicsEnvironment;
37import java.awt.image.BufferedImage;
38import java.awt.image.VolatileImage;
39
40public class DrawHugeImageTest {
41    // we have to render the BI source several times in order
42    // to get an accelerated copy to be used.
43    static {
44        System.setProperty("sun.java2d.accthreshold", "1");
45    }
46    private static final int max_rendering_count = 5;
47
48    private static final Color srcColor = Color.red;
49    private static final Color dstColor = Color.blue;
50
51    public static void main(String[] args) {
52        BufferedImage src = createSrc();
53
54        VolatileImage dst = createDst();
55        System.out.println("Dst: " + dst);
56        boolean status;
57        int count = max_rendering_count;
58
59        do {
60            System.out.println("render image: " + (max_rendering_count - count));
61            status = render(src, dst);
62
63        } while (status && count-- > 0);
64
65        if (!status || count > 0) {
66            throw new RuntimeException("Test failed: " + count);
67        }
68    }
69
70    private static boolean render(BufferedImage src, VolatileImage dst) {
71        int cnt = 5;
72        do {
73            Graphics2D g = dst.createGraphics();
74            g.setColor(dstColor);
75            g.fillRect(0, 0, dst.getWidth(), dst.getHeight());
76            g.drawImage(src, 0, 0, null);
77            g.dispose();
78        } while (dst.contentsLost() && (--cnt > 0));
79
80        if (cnt == 0) {
81            System.err.println("Test failed: unable to render to volatile destination");
82            return false;
83        }
84
85        BufferedImage s = dst.getSnapshot();
86
87        return s.getRGB(1,1) == srcColor.getRGB();
88    }
89
90    private static BufferedImage createSrc() {
91        final int w = 20000;
92        final int h = 5;
93
94        BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);
95        Graphics2D g = img.createGraphics();
96        g.setColor(srcColor);
97        g.fillRect(0, 0, w, h);
98        g.dispose();
99
100        return img;
101    }
102
103    private static VolatileImage createDst() {
104        GraphicsConfiguration gc =
105                GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();
106
107        return gc.createCompatibleVolatileImage(200, 200);
108    }
109}
110