1 /*
2 * Copyright (c) 2005, 2017, 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 /*
25 * @test
26 * @key headful
27 * @bug 4339415
28 * @summary Tests that GIF writer plugin is able to write images with BITMASK
29 * transparency
30 */
31
32 import java.awt.Color;
33 import java.awt.Graphics2D;
34 import java.awt.image.BufferedImage;
35 import java.awt.image.IndexColorModel;
36 import java.awt.image.WritableRaster;
37 import java.io.File;
38 import java.io.IOException;
39
40 import javax.imageio.ImageIO;
41 import javax.imageio.ImageWriter;
42
43 public class TransparencyTest {
44
45 protected static final String fname = "ttest.gif";
46 protected BufferedImage src;
47 protected BufferedImage dst;
48
49 public static void main(String[] args) {
50 System.out.println("Test indexed image...");
51 IndexColorModel icm = createIndexedBitmaskColorModel();
52 BufferedImage img = createIndexedImage(200, 200, icm);
53 TransparencyTest t = new TransparencyTest(img);
54
55 try {
56 t.doTest();
57 } catch (Exception e) {
58 throw new RuntimeException("Test failed!", e);
59 }
60 System.out.println("Test passed.");
61 }
62
63 protected TransparencyTest(BufferedImage src) {
64 this.src = src;
65 }
66
67 protected void doTest() throws IOException {
68 int w = src.getWidth();
69 int h = src.getHeight();
70
71 System.out.println("Write image...");
72 try {
73 ImageWriter writer =
74 ImageIO.getImageWritersByFormatName("GIF").next();
75 writer.setOutput(ImageIO.createImageOutputStream(new File(fname)));
76 writer.write(src);
77 } catch (Exception e) {
78 throw new RuntimeException("Test failed.", e);
79 }
80 System.out.println("Read image....");
81 dst = ImageIO.read(new File(fname));
82
83 BufferedImage tmp = new BufferedImage(w, 2 * h,
84 BufferedImage.TYPE_INT_ARGB);
85 Graphics2D g = tmp.createGraphics();
86 g.setColor(Color.pink);
87 g.fillRect(0, 0, tmp.getWidth(), tmp.getHeight());
88
89 g.drawImage(src, 0, 0, null);
90 g.drawImage(dst, 0, h, null);
91
92 int width = w / 8;
93 int x = 5 * width + width / 2;
94 for (int y = 0; y < h; y++) {
95 int argb = tmp.getRGB(x, y);
96 if (Color.pink.getRGB() != argb) {
97 throw new RuntimeException("Bad color at " + x + "," + y +
98 " - " + Integer.toHexString(argb));
99 }
100 }
101 }
102
103 protected static BufferedImage createIndexedImage(int w, int h,
104 IndexColorModel icm)
105 {
106 BufferedImage img = new BufferedImage(w, h,
107 BufferedImage.TYPE_BYTE_INDEXED,
108 icm);
109
110 int mapSize = icm.getMapSize();
111 int width = w / mapSize;
112
113 WritableRaster wr = img.getRaster();
114 for (int i = 0; i < mapSize; i++) {
115 for (int y = 0; y < h; y++) {
116 for (int x = 0; x < width; x++) {
117 wr.setSample(i * width + x, y, 0, i);
118 }
119 }
120 }
121 return img;
122 }
123
124 protected static IndexColorModel createIndexedBitmaskColorModel() {
125 int paletteSize = 8;
126 byte[] red = new byte[paletteSize];
127 byte[] green = new byte[paletteSize];
128 byte[] blue = new byte[paletteSize];
129
130 red[0] = (byte)0xff; green[0] = (byte)0x00; blue[0] = (byte)0x00;
131 red[1] = (byte)0x00; green[1] = (byte)0xff; blue[1] = (byte)0x00;
132 red[2] = (byte)0x00; green[2] = (byte)0x00; blue[2] = (byte)0xff;
133 red[3] = (byte)0xff; green[3] = (byte)0xff; blue[3] = (byte)0xff;
134 red[4] = (byte)0x00; green[4] = (byte)0x00; blue[4] = (byte)0x00;
135 red[5] = (byte)0x80; green[5] = (byte)0x80; blue[5] = (byte)0x80;
136 red[6] = (byte)0xff; green[6] = (byte)0xff; blue[6] = (byte)0x00;
137 red[7] = (byte)0x00; green[7] = (byte)0xff; blue[7] = (byte)0xff;
138
139 int numBits = 3;
140
141 IndexColorModel icm = new IndexColorModel(numBits, paletteSize,
142 red, green, blue, 5);
143
144 return icm;
145 }
146 }