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.image.BufferedImage;
31 import java.awt.image.DataBuffer;
32 import java.awt.image.DataBufferByte;
33 import java.awt.image.DataBufferInt;
34 import java.awt.image.DataBufferShort;
35 import java.awt.image.VolatileImage;
36 import java.io.File;
37 import java.io.IOException;
38
39 import javax.imageio.ImageIO;
40
41 import static java.awt.Transparency.*;
42 import static java.awt.image.BufferedImage.*;
43
44 /**
45 * @test
46 * @bug 8029253
47 * @summary Tests asymmetric source offsets when unmanaged image is drawn to VI.
48 * Results of the blit to compatibleImage are used for comparison.
49 * @author Sergey Bylokhov
50 */
51 public final class IncorrectUnmanagedImageSourceOffset {
52
53 private static final int[] TYPES = {TYPE_INT_RGB, TYPE_INT_ARGB,
54 TYPE_INT_ARGB_PRE, TYPE_INT_BGR,
55 TYPE_3BYTE_BGR, TYPE_4BYTE_ABGR,
56 TYPE_4BYTE_ABGR_PRE,
57 /*TYPE_USHORT_565_RGB,
58 TYPE_USHORT_555_RGB, TYPE_BYTE_GRAY,
59 TYPE_USHORT_GRAY,*/ TYPE_BYTE_BINARY,
60 TYPE_BYTE_INDEXED};
61 private static final int[] TRANSPARENCIES = {OPAQUE, BITMASK, TRANSLUCENT};
62
63 public static void main(final String[] args) throws IOException {
64 for (final int viType : TRANSPARENCIES) {
65 for (final int biType : TYPES) {
66 BufferedImage bi = makeUnmanagedBI(biType);
67 fill(bi);
68 test(bi, viType);
69 }
70 }
71 }
72
73 private static void test(BufferedImage bi, int type)
74 throws IOException {
75 GraphicsEnvironment ge = GraphicsEnvironment
76 .getLocalGraphicsEnvironment();
77 GraphicsConfiguration gc = ge.getDefaultScreenDevice()
78 .getDefaultConfiguration();
79 VolatileImage vi = gc.createCompatibleVolatileImage(511, 255, type);
80 BufferedImage gold = gc.createCompatibleImage(511, 255, type);
81 // draw to compatible Image
82 Graphics2D big = gold.createGraphics();
83 // force scaled blit
84 big.drawImage(bi, 7, 11, 127, 111, 7, 11, 127 * 2, 111, null);
85 big.dispose();
86 // draw to volatile image
87 BufferedImage snapshot;
88 while (true) {
89 vi.validate(gc);
90 if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
91 try {
92 Thread.sleep(100);
93 } catch (final InterruptedException ignored) {
94 }
95 continue;
96 }
97 Graphics2D vig = vi.createGraphics();
98 // force scaled blit
99 vig.drawImage(bi, 7, 11, 127, 111, 7, 11, 127 * 2, 111, null);
100 vig.dispose();
101 snapshot = vi.getSnapshot();
102 if (vi.contentsLost()) {
103 try {
104 Thread.sleep(100);
105 } catch (final InterruptedException ignored) {
106 }
107 continue;
108 }
109 break;
110 }
111 // validate images
112 for (int x = 7; x < 127; ++x) {
113 for (int y = 11; y < 111; ++y) {
114 if (gold.getRGB(x, y) != snapshot.getRGB(x, y)) {
115 ImageIO.write(gold, "png", new File("gold.png"));
116 ImageIO.write(snapshot, "png", new File("bi.png"));
117 throw new RuntimeException("Test failed.");
118 }
119 }
120 }
121 }
122
123 private static BufferedImage makeUnmanagedBI(final int type) {
124 final BufferedImage bi = new BufferedImage(511, 255, type);
125 final DataBuffer db = bi.getRaster().getDataBuffer();
126 if (db instanceof DataBufferInt) {
127 ((DataBufferInt) db).getData();
128 } else if (db instanceof DataBufferShort) {
129 ((DataBufferShort) db).getData();
130 } else if (db instanceof DataBufferByte) {
131 ((DataBufferByte) db).getData();
132 } else {
133 try {
134 bi.setAccelerationPriority(0.0f);
135 } catch (final Throwable ignored) {
136 }
137 }
138 return bi;
139 }
140
141 private static void fill(final Image image) {
142 final Graphics2D graphics = (Graphics2D) image.getGraphics();
143 graphics.setComposite(AlphaComposite.Src);
144 for (int i = 0; i < image.getHeight(null); ++i) {
145 graphics.setColor(new Color(i, 0, 0));
146 graphics.fillRect(0, i, image.getWidth(null), 1);
147 }
148 graphics.dispose();
149 }
150 }