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 * @bug 6286578 27 * @summary Test verifies that RGB images does not convert to gray-scaled if 28 * default image metadata is used 29 */ 30 31 import java.awt.Color; 32 import java.awt.Graphics; 33 import java.awt.image.BufferedImage; 34 import java.io.ByteArrayInputStream; 35 import java.io.ByteArrayOutputStream; 36 import java.io.IOException; 37 38 import javax.imageio.IIOImage; 39 import javax.imageio.ImageIO; 40 import javax.imageio.ImageReader; 41 import javax.imageio.ImageTypeSpecifier; 42 import javax.imageio.ImageWriteParam; 43 import javax.imageio.ImageWriter; 44 import javax.imageio.metadata.IIOMetadata; 45 import javax.imageio.stream.ImageInputStream; 46 import javax.imageio.stream.ImageOutputStream; 47 48 public class RGBImageTest { 49 50 Color[] usedColors = { 51 Color.red, Color.green, Color.blue, Color.yellow, 52 Color.cyan, Color.magenta, Color.white, Color.black }; 53 54 BufferedImage src = null; 55 int dx= 20; 56 int height = 100; 57 58 protected BufferedImage getSrc() { 59 if (src == null) { 60 src = new BufferedImage(dx * usedColors.length, height, 61 BufferedImage.TYPE_INT_RGB); 62 Graphics g = src.createGraphics(); 63 for (int i = 0; i < usedColors.length; i++) { 64 g.setColor(usedColors[i]); 65 g.fillRect(dx * i, 0, dx, height); 66 } 67 } 68 return src; 69 } 70 71 protected void doTest() throws IOException { 72 BufferedImage biSrc = getSrc(); 73 74 ImageWriter writer = ImageIO.getImageWritersByFormatName("GIF").next(); 75 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 76 ImageOutputStream ios = ImageIO.createImageOutputStream(baos); 77 writer.setOutput(ios); 78 79 ImageWriteParam writeParam = writer.getDefaultWriteParam(); 80 IIOMetadata imageMetadata = 81 writer.getDefaultImageMetadata(new ImageTypeSpecifier(biSrc), writeParam); 82 83 IIOMetadata streamMetadata = writer.getDefaultStreamMetadata(writeParam); 84 85 IIOImage iioImg = new IIOImage(biSrc, null, imageMetadata); 86 writer.write(streamMetadata, iioImg, writeParam); 87 ios.close(); 88 89 ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray()); 90 ImageInputStream iis = ImageIO.createImageInputStream(bais); 91 ImageReader reader = ImageIO.getImageReader(writer); 92 reader.setInput(iis); 93 BufferedImage dst = reader.read(0); 94 95 // do test 96 int x = dx / 2; 97 int y = height / 2; 98 99 for (int i = 0; i < usedColors.length; i++) { 100 int dstRgb = dst.getRGB(x, y); 101 System.out.println("dstColor: " + Integer.toHexString(dstRgb)); 102 int srcRgb = usedColors[i].getRGB(); 103 System.out.println("srcColor: " + Integer.toHexString(srcRgb)); 104 if (dstRgb != srcRgb) { 105 throw new RuntimeException("wrong color " + i + ": " + Integer.toHexString(dstRgb)); 106 } 107 x += dx; 108 } 109 110 } 111 112 public static void main(String[] args) throws IOException { 113 RGBImageTest t = new RGBImageTest(); 114 t.doTest(); 115 } 116 }