1 /*
2 * Copyright (c) 2014, 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 import java.awt.AlphaComposite;
25 import java.awt.Color;
26 import java.awt.Graphics2D;
27 import java.awt.GraphicsConfiguration;
28 import java.awt.GraphicsEnvironment;
29 import java.awt.Image;
30 import java.awt.Rectangle;
31 import java.awt.image.BufferedImage;
32 import java.awt.image.DataBuffer;
33 import java.awt.image.DataBufferByte;
34 import java.awt.image.DataBufferInt;
35 import java.awt.image.DataBufferShort;
36 import java.awt.image.VolatileImage;
37 import java.io.File;
38 import java.io.IOException;
39
40 import javax.imageio.ImageIO;
41
42 import static java.awt.Transparency.TRANSLUCENT;
43 import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
44
45 /**
46 * @test
47 * @bug 8059942
48 * @summary Tests rotated clip when unmanaged image is drawn to VI.
49 * Results of the blit to compatibleImage are used for comparison.
50 * @author Sergey Bylokhov
51 */
52 public final class IncorrectUnmanagedImageRotatedClip {
53
54 public static void main(final String[] args) throws IOException {
55 BufferedImage bi = makeUnmanagedBI();
56 fill(bi);
57 test(bi);
58 }
59
60 private static void test(final BufferedImage bi) throws IOException {
61 GraphicsEnvironment ge = GraphicsEnvironment
62 .getLocalGraphicsEnvironment();
63 GraphicsConfiguration gc = ge.getDefaultScreenDevice()
64 .getDefaultConfiguration();
65 VolatileImage vi = gc.createCompatibleVolatileImage(500, 200,
66 TRANSLUCENT);
67 BufferedImage gold = gc.createCompatibleImage(500, 200, TRANSLUCENT);
68 // draw to compatible Image
69 draw(bi, gold);
70 // draw to volatile image
71 int attempt = 0;
72 BufferedImage snapshot;
73 while (true) {
74 if (++attempt > 10) {
75 throw new RuntimeException("Too many attempts: " + attempt);
76 }
77 vi.validate(gc);
78 if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
79 continue;
80 }
81 draw(bi, vi);
82 snapshot = vi.getSnapshot();
83 if (vi.contentsLost()) {
84 continue;
85 }
86 break;
87 }
88 // validate images
89 for (int x = 0; x < gold.getWidth(); ++x) {
90 for (int y = 0; y < gold.getHeight(); ++y) {
91 if (gold.getRGB(x, y) != snapshot.getRGB(x, y)) {
92 ImageIO.write(gold, "png", new File("gold.png"));
93 ImageIO.write(snapshot, "png", new File("bi.png"));
94 throw new RuntimeException("Test failed.");
95 }
96 }
97 }
98 }
99
100 private static void draw(final BufferedImage from,final Image to) {
101 final Graphics2D g2d = (Graphics2D) to.getGraphics();
102 g2d.setComposite(AlphaComposite.Src);
103 g2d.setColor(Color.ORANGE);
104 g2d.fillRect(0, 0, to.getWidth(null), to.getHeight(null));
105 g2d.rotate(Math.toRadians(45));
106 g2d.clip(new Rectangle(41, 42, 43, 44));
107 g2d.drawImage(from, 50, 50, Color.blue, null);
108 g2d.dispose();
109 }
110
111 private static BufferedImage makeUnmanagedBI() {
112 final BufferedImage bi = new BufferedImage(500, 200, TYPE_INT_ARGB);
113 final DataBuffer db = bi.getRaster().getDataBuffer();
114 if (db instanceof DataBufferInt) {
115 ((DataBufferInt) db).getData();
116 } else if (db instanceof DataBufferShort) {
117 ((DataBufferShort) db).getData();
118 } else if (db instanceof DataBufferByte) {
119 ((DataBufferByte) db).getData();
120 } else {
121 try {
122 bi.setAccelerationPriority(0.0f);
123 } catch (final Throwable ignored) {
124 }
125 }
126 return bi;
127 }
128
129 private static void fill(final Image image) {
130 final Graphics2D graphics = (Graphics2D) image.getGraphics();
131 graphics.setComposite(AlphaComposite.Src);
132 for (int i = 0; i < image.getHeight(null); ++i) {
133 graphics.setColor(new Color(i, 0, 0));
134 graphics.fillRect(0, i, image.getWidth(null), 1);
135 }
136 graphics.dispose();
137 }
138 }