| /* |
| * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6574555 5109146 |
| * @summary Test verifies that PNGImageWriter encodes the R, G, B |
| * values of bKGD chunk properly. |
| * @run main VerifyRGBValuesFromBKGDChunk |
| */ |
| |
| import java.awt.image.BufferedImage; |
| import java.io.IOException; |
| import java.util.Iterator; |
| import javax.imageio.ImageTypeSpecifier; |
| import javax.imageio.ImageWriter; |
| import javax.imageio.ImageReader; |
| import javax.imageio.ImageIO; |
| import javax.imageio.ImageWriteParam; |
| import javax.imageio.metadata.IIOInvalidTreeException; |
| import javax.imageio.metadata.IIOMetadata; |
| import javax.imageio.metadata.IIOMetadataNode; |
| import javax.imageio.IIOImage; |
| import javax.imageio.stream.ImageInputStream; |
| import javax.imageio.stream.ImageOutputStream; |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.InputStream; |
| |
| public class VerifyRGBValuesFromBKGDChunk { |
| |
| private static IIOMetadata encodeMetadata; |
| private static ImageWriter writer; |
| private static ImageReader reader; |
| private static BufferedImage img; |
| private static ImageWriteParam param; |
| private static boolean nativeBKGDFail, standardBKGDFail; |
| private static IIOMetadataNode bKGD_RGBNode; |
| private static final String BKGDRED = "100"; |
| private static final String BKGDGREEN = "150"; |
| private static final String BKGDBLUE = "200"; |
| |
| private static void mergeStandardMetadata() throws IIOInvalidTreeException { |
| IIOMetadataNode background_rgb = new IIOMetadataNode("BackgroundColor"); |
| |
| background_rgb.setAttribute("red", BKGDRED); |
| background_rgb.setAttribute("green", BKGDGREEN); |
| background_rgb.setAttribute("blue", BKGDBLUE); |
| |
| IIOMetadataNode chroma = new IIOMetadataNode("Chroma"); |
| chroma.appendChild(background_rgb); |
| IIOMetadataNode encodeRoot = new IIOMetadataNode("javax_imageio_1.0"); |
| encodeRoot.appendChild(chroma); |
| |
| ImageTypeSpecifier specifier = |
| ImageTypeSpecifier. |
| createFromBufferedImageType(BufferedImage.TYPE_INT_BGR); |
| encodeMetadata = writer.getDefaultImageMetadata(specifier, param); |
| encodeMetadata.mergeTree("javax_imageio_1.0", encodeRoot); |
| } |
| |
| private static void mergeNativeMetadata() throws IIOInvalidTreeException { |
| IIOMetadataNode bKGD_rgb = new IIOMetadataNode("bKGD_RGB"); |
| |
| bKGD_rgb.setAttribute("red", BKGDRED); |
| bKGD_rgb.setAttribute("green", BKGDGREEN); |
| bKGD_rgb.setAttribute("blue", BKGDBLUE); |
| |
| IIOMetadataNode bKGD = new IIOMetadataNode("bKGD"); |
| bKGD.appendChild(bKGD_rgb); |
| IIOMetadataNode encodeRoot = |
| new IIOMetadataNode("javax_imageio_png_1.0"); |
| encodeRoot.appendChild(bKGD); |
| |
| ImageTypeSpecifier specifier = |
| ImageTypeSpecifier. |
| createFromBufferedImageType(BufferedImage.TYPE_INT_BGR); |
| encodeMetadata = writer.getDefaultImageMetadata(specifier, param); |
| encodeMetadata.mergeTree("javax_imageio_png_1.0", encodeRoot); |
| } |
| |
| private static void writeAndReadMetadata() throws IOException { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| ImageOutputStream ios = ImageIO.createImageOutputStream(baos); |
| writer.setOutput(ios); |
| |
| writer.write(encodeMetadata, |
| new IIOImage(img, null, encodeMetadata), param); |
| |
| baos.flush(); |
| byte[] imageByteArray = baos.toByteArray(); |
| baos.close(); |
| |
| // Get bKGD chunk from image and verify the values |
| InputStream input= new ByteArrayInputStream(imageByteArray); |
| ImageInputStream iis = ImageIO.createImageInputStream(input); |
| reader.setInput(iis, false, false); |
| |
| IIOMetadata decodeMetadata = reader.getImageMetadata(0); |
| IIOMetadataNode decodeRoot = |
| (IIOMetadataNode) decodeMetadata. |
| getAsTree("javax_imageio_png_1.0"); |
| bKGD_RGBNode = (IIOMetadataNode) |
| decodeRoot.getElementsByTagName("bKGD_RGB").item(0); |
| } |
| |
| private static boolean verifyRGBValues() { |
| return (!(BKGDRED.equals(bKGD_RGBNode.getAttribute("red")) && |
| BKGDGREEN.equals(bKGD_RGBNode.getAttribute("green")) && |
| BKGDBLUE.equals(bKGD_RGBNode.getAttribute("blue")))); |
| } |
| |
| private static void VerifyNativeRGBValuesFromBKGDChunk() |
| throws IOException { |
| |
| mergeNativeMetadata(); |
| writeAndReadMetadata(); |
| nativeBKGDFail = verifyRGBValues(); |
| } |
| |
| private static void VerifyStandardRGBValuesFromBKGDChunk() |
| throws IOException { |
| |
| mergeStandardMetadata(); |
| writeAndReadMetadata(); |
| standardBKGDFail = verifyRGBValues(); |
| } |
| |
| public static void main(String[] args) throws IOException { |
| int width = 1; |
| int height = 1; |
| img = new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR); |
| Iterator<ImageWriter> iterWriter = |
| ImageIO.getImageWritersBySuffix("png"); |
| writer = iterWriter.next(); |
| |
| param = writer.getDefaultWriteParam(); |
| |
| Iterator<ImageReader> iterReader = |
| ImageIO.getImageReadersBySuffix("png"); |
| reader = iterReader.next(); |
| // Verify bKGD RGB values after merging metadata using native tree |
| VerifyNativeRGBValuesFromBKGDChunk(); |
| |
| // Verify bKGD RGB values after merging metadata using standard tree |
| VerifyStandardRGBValuesFromBKGDChunk(); |
| |
| writer.dispose(); |
| reader.dispose(); |
| |
| if (nativeBKGDFail || standardBKGDFail) { |
| throw new RuntimeException("bKGD RGB values are not stored" + |
| " properly"); |
| } |
| } |
| } |
| |