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.BufferedImage;
30 import java.awt.image.VolatileImage;
31 import java.io.File;
32 import java.io.IOException;
33
34 import javax.imageio.ImageIO;
35
36 /**
37 * @test
38 * @bug 8041129
39 * @summary Destination offset should be correct in case of Surface->SW blit.
40 * Destination outside of the drawing area should be untouched.
41 * @author Sergey Bylokhov
42 */
43 public final class IncorrectDestinationOffset {
44
45 private static final int SIZE = 128;
46 private static final double[] SCALES = {0.25, 0.5, 1, 1.5, 2.0, 4};
47
48 public static void main(final String[] args) throws IOException {
49 GraphicsEnvironment ge = GraphicsEnvironment
50 .getLocalGraphicsEnvironment();
51 GraphicsConfiguration gc = ge.getDefaultScreenDevice()
52 .getDefaultConfiguration();
53 VolatileImage vi = gc.createCompatibleVolatileImage(SIZE, SIZE);
54 BufferedImage bi = new BufferedImage(SIZE, SIZE,
55 BufferedImage.TYPE_INT_ARGB);
56 for (double scale : SCALES) {
57 while (true) {
58 // initialize Volatile Image
59 vi.validate(gc);
60 Graphics2D g2d = vi.createGraphics();
61 g2d.setColor(Color.green);
62 g2d.fillRect(0, 0, SIZE, SIZE);
63 g2d.dispose();
64
65 if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
66 try {
67 Thread.sleep(100);
68 } catch (InterruptedException ignored) {
69 }
70 continue;
71 }
72 // Draw the VolatileImage to BI with scale and offsets
73 Graphics2D g = bi.createGraphics();
74 g.setComposite(AlphaComposite.Src);
75 g.setColor(Color.RED);
76 g.fillRect(0, 0, SIZE / 2, SIZE / 2);
77 g.setColor(Color.BLUE);
78 g.fillRect(SIZE / 2, 0, SIZE / 2, SIZE / 2);
79 g.setColor(Color.ORANGE);
80 g.fillRect(0, SIZE / 2, SIZE / 2, SIZE / 2);
81 g.setColor(Color.MAGENTA);
82 g.fillRect(SIZE / 2, SIZE / 2, SIZE / 2, SIZE / 2);
83
84 int point2draw = (int) (100 * scale);
85 int size2draw = (int) (SIZE * scale);
86 g.drawImage(vi, point2draw, point2draw, size2draw, size2draw,
87 null);
88 g.dispose();
89
90 if (vi.contentsLost()) {
91 try {
92 Thread.sleep(100);
93 } catch (InterruptedException ignored) {
94 }
95 continue;
96 }
97 validate(bi, point2draw, size2draw);
98 break;
99 }
100 }
101 }
102
103 private static void validate(BufferedImage bi, int point2draw,
104 int size2draw)
105 throws IOException {
106 for (int x = 0; x < SIZE; ++x) {
107 for (int y = 0; y < SIZE; ++y) {
108 if (isInsideGreenArea(point2draw, size2draw, x, y)) {
109 if (bi.getRGB(x, y) != Color.green.getRGB()) {
110 ImageIO.write(bi, "png", new File("image.png"));
111 throw new RuntimeException("Test failed.");
112 }
113 } else {
114 if (isRedArea(x, y)) {
115 if (bi.getRGB(x, y) != Color.red.getRGB()) {
116 ImageIO.write(bi, "png", new File("image.png"));
117 throw new RuntimeException("Test failed.");
118 }
119 }
120 if (isBlueArea(x, y)) {
121 if (bi.getRGB(x, y) != Color.blue.getRGB()) {
122 ImageIO.write(bi, "png", new File("image.png"));
123 throw new RuntimeException("Test failed.");
124 }
125 }
126 if (isOrangeArea(x, y)) {
127 if (bi.getRGB(x, y) != Color.orange.getRGB()) {
128 ImageIO.write(bi, "png", new File("image.png"));
129 throw new RuntimeException("Test failed.");
130 }
131 }
132 if (isMagentaArea(x, y)) {
133 if (bi.getRGB(x, y) != Color.magenta.getRGB()) {
134 ImageIO.write(bi, "png", new File("image.png"));
135 throw new RuntimeException("Test failed.");
136 }
137 }
138 }
139 }
140 }
141 }
142
143 private static boolean isRedArea(int x, int y) {
144 return x < SIZE / 2 && y < SIZE / 2;
145 }
146
147 private static boolean isBlueArea(int x, int y) {
148 return x >= SIZE / 2 && y < SIZE / 2;
149 }
150
151 private static boolean isOrangeArea(int x, int y) {
152 return x < SIZE / 2 && y >= SIZE / 2;
153 }
154
155 private static boolean isMagentaArea(int x, int y) {
156 return x >= SIZE / 2 && y >= SIZE / 2;
157 }
158
159 private static boolean isInsideGreenArea(int point2draw, int size2draw,
160 int x, int y) {
161 return x >= point2draw && x < point2draw + size2draw && y >=
162 point2draw && y < point2draw + size2draw;
163 }
164 }