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 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 * @key headful
39 * @bug 8041129
40 * @summary Destination offset should be correct in case of Surface->SW blit.
41 * Destination outside of the drawing area should be untouched.
42 * @author Sergey Bylokhov
43 */
44 public final class IncorrectDestinationOffset {
45
46 private static final int SIZE = 128;
47 private static final double[] SCALES = {0.25, 0.5, 1, 1.5, 2.0, 4};
48
49 public static void main(final String[] args) throws IOException {
50 GraphicsEnvironment ge = GraphicsEnvironment
51 .getLocalGraphicsEnvironment();
52 GraphicsConfiguration gc = ge.getDefaultScreenDevice()
53 .getDefaultConfiguration();
54 VolatileImage vi = gc.createCompatibleVolatileImage(SIZE, SIZE);
55 BufferedImage bi = new BufferedImage(SIZE, SIZE,
56 BufferedImage.TYPE_INT_ARGB);
57 for (double scale : SCALES) {
58 while (true) {
59 // initialize Volatile Image
60 vi.validate(gc);
61 Graphics2D g2d = vi.createGraphics();
62 g2d.setColor(Color.green);
63 g2d.fillRect(0, 0, SIZE, SIZE);
64 g2d.dispose();
65
66 if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
67 try {
68 Thread.sleep(100);
69 } catch (InterruptedException ignored) {
70 }
71 continue;
72 }
73 // Draw the VolatileImage to BI with scale and offsets
74 Graphics2D g = bi.createGraphics();
75 g.setComposite(AlphaComposite.Src);
76 g.setColor(Color.RED);
77 g.fillRect(0, 0, SIZE / 2, SIZE / 2);
78 g.setColor(Color.BLUE);
79 g.fillRect(SIZE / 2, 0, SIZE / 2, SIZE / 2);
80 g.setColor(Color.ORANGE);
81 g.fillRect(0, SIZE / 2, SIZE / 2, SIZE / 2);
82 g.setColor(Color.MAGENTA);
83 g.fillRect(SIZE / 2, SIZE / 2, SIZE / 2, SIZE / 2);
84
85 int point2draw = (int) (100 * scale);
86 int size2draw = (int) (SIZE * scale);
87 g.drawImage(vi, point2draw, point2draw, size2draw, size2draw,
88 null);
89 g.dispose();
90
91 if (vi.contentsLost()) {
92 try {
93 Thread.sleep(100);
94 } catch (InterruptedException ignored) {
95 }
96 continue;
97 }
98 validate(bi, point2draw, size2draw);
99 break;
100 }
101 }
102 }
103
104 private static void validate(BufferedImage bi, int point2draw,
105 int size2draw)
106 throws IOException {
107 for (int x = 0; x < SIZE; ++x) {
108 for (int y = 0; y < SIZE; ++y) {
109 if (isInsideGreenArea(point2draw, size2draw, x, y)) {
110 if (bi.getRGB(x, y) != Color.green.getRGB()) {
111 ImageIO.write(bi, "png", new File("image.png"));
112 throw new RuntimeException("Test failed.");
113 }
114 } else {
115 if (isRedArea(x, y)) {
116 if (bi.getRGB(x, y) != Color.red.getRGB()) {
117 ImageIO.write(bi, "png", new File("image.png"));
118 throw new RuntimeException("Test failed.");
119 }
120 }
121 if (isBlueArea(x, y)) {
122 if (bi.getRGB(x, y) != Color.blue.getRGB()) {
123 ImageIO.write(bi, "png", new File("image.png"));
124 throw new RuntimeException("Test failed.");
125 }
126 }
127 if (isOrangeArea(x, y)) {
128 if (bi.getRGB(x, y) != Color.orange.getRGB()) {
129 ImageIO.write(bi, "png", new File("image.png"));
130 throw new RuntimeException("Test failed.");
131 }
132 }
133 if (isMagentaArea(x, y)) {
134 if (bi.getRGB(x, y) != Color.magenta.getRGB()) {
135 ImageIO.write(bi, "png", new File("image.png"));
136 throw new RuntimeException("Test failed.");
137 }
138 }
139 }
140 }
141 }
142 }
143
144 private static boolean isRedArea(int x, int y) {
145 return x < SIZE / 2 && y < SIZE / 2;
146 }
147
148 private static boolean isBlueArea(int x, int y) {
149 return x >= SIZE / 2 && y < SIZE / 2;
150 }
151
152 private static boolean isOrangeArea(int x, int y) {
153 return x < SIZE / 2 && y >= SIZE / 2;
154 }
155
156 private static boolean isMagentaArea(int x, int y) {
157 return x >= SIZE / 2 && y >= SIZE / 2;
158 }
159
160 private static boolean isInsideGreenArea(int point2draw, int size2draw,
161 int x, int y) {
162 return x >= point2draw && x < point2draw + size2draw && y >=
163 point2draw && y < point2draw + size2draw;
164 }
165 }