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;
30 import java.awt.image.BufferedImage;
31 import java.awt.image.VolatileImage;
32 import java.io.File;
33 import java.io.IOException;
34
35 import javax.imageio.ImageIO;
36
37 import static java.awt.Transparency.TRANSLUCENT;
38 import static java.awt.image.BufferedImage.TYPE_4BYTE_ABGR;
39 import static java.awt.image.BufferedImage.TYPE_4BYTE_ABGR_PRE;
40 import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
41 import static java.awt.image.BufferedImage.TYPE_INT_ARGB_PRE;
42
43 /**
44 * @test
45 * @key headful
46 * @bug 8017626
47 * @summary Tests drawing transparent volatile image to transparent BI.
48 * Results of the blit compatibleImage to transparent BI used for
49 * comparison.
50 * @author Sergey Bylokhov
51 */
52 public final class IncorrectAlphaSurface2SW {
53
54 private static final int[] SCALES = {1, 2, 4, 8};
55 private static final int[] SIZES = {1, 2, 3, 127, 128, 254, 255, 256};
56 private static final int[] dstTypes = {TYPE_INT_ARGB, TYPE_INT_ARGB_PRE,
57 TYPE_4BYTE_ABGR, TYPE_4BYTE_ABGR_PRE};
58 private static final int[] srcTypes = {TRANSLUCENT};
59
60
61 public static void main(final String[] args) throws IOException {
62 GraphicsEnvironment ge = GraphicsEnvironment
63 .getLocalGraphicsEnvironment();
64 GraphicsConfiguration gc = ge.getDefaultScreenDevice()
65 .getDefaultConfiguration();
66 BufferedImage destVI;
67 BufferedImage destBI;
68 BufferedImage sourceBI;
69 VolatileImage sourceVI;
70
71 for (final int s : SIZES) {
72 for (final int srcType : srcTypes) {
73 for (final int dstType : dstTypes) {
74 for (final int scale : SCALES) {
75 int sw = s * scale;
76 destVI = new BufferedImage(sw, sw, dstType);
77 destBI = new BufferedImage(sw, sw, dstType);
78 sourceBI = gc.createCompatibleImage(sw, sw, srcType);
79 sourceVI = gc.createCompatibleVolatileImage(s, s, srcType);
80
81 // draw to dest BI using compatible image
82 fill(sourceBI, s);
83 Graphics2D big = destBI.createGraphics();
84 big.setComposite(AlphaComposite.Src);
85 big.drawImage(sourceBI, 0, 0, sw, sw, null);
86 big.dispose();
87
88 // draw to dest BI using compatible image
89 fill(sourceVI, s);
90 drawVItoBI(gc, destVI, sourceVI);
91
92 validate(destVI, destBI);
93 sourceVI.flush();
94 }
95 }
96 }
97 }
98 System.out.println("Test PASSED");
99 }
100
101 private static void drawVItoBI(GraphicsConfiguration gc,
102 BufferedImage bi, VolatileImage vi) {
103 while (true) {
104 vi.validate(gc);
105 fill(vi, vi.getHeight());
106 if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
107 try {
108 Thread.sleep(100);
109 } catch (final InterruptedException ignored) {
110 }
111 continue;
112 }
113
114 Graphics2D big = bi.createGraphics();
115 big.setComposite(AlphaComposite.Src);
116 big.drawImage(vi, 0, 0, bi.getWidth(), bi.getHeight(), null);
117 big.dispose();
118
119 if (vi.contentsLost()) {
120 try {
121 Thread.sleep(100);
122 } catch (final InterruptedException ignored) {
123 }
124 continue;
125 }
126 break;
127 }
128 }
129
130 private static void validate(BufferedImage bi, BufferedImage gold)
131 throws IOException {
132 for (int x = 0; x < bi.getWidth(); ++x) {
133 for (int y = 0; y < bi.getHeight(); ++y) {
134 if (gold.getRGB(x, y) != bi.getRGB(x, y)) {
135 System.err.println("Expected color = " + gold.getRGB(x, y));
136 System.err.println("Actual color = " + bi.getRGB(x, y));
137 ImageIO.write(gold, "png", new File("gold.png"));
138 ImageIO.write(bi, "png", new File("bi.png"));
139 throw new RuntimeException("Test failed.");
140 }
141 }
142 }
143 }
144
145 /**
146 * Fills the whole image using different alpha for each row.
147 *
148 * @param image to fill
149 */
150 private static void fill(final Image image, final int size) {
151 Graphics2D graphics = (Graphics2D) image.getGraphics();
152 graphics.setComposite(AlphaComposite.Src);
153 graphics.setColor(Color.GREEN);
154 graphics.fillRect(0, 0, image.getWidth(null), image.getHeight(null));
155 int row = image.getHeight(null) / size;
156 for (int i = 0; i < size; ++i) {
157 graphics.setColor(new Color(23, 127, 189, i));
158 graphics.fillRect(0, i * row, image.getWidth(null), row);
159 }
160 graphics.dispose();
161 }
162 }