| /* |
| * Copyright (c) 2001, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| package com.sun.imageio.plugins.jpeg; |
| |
| import javax.imageio.IIOException; |
| import javax.imageio.metadata.IIOInvalidTreeException; |
| import javax.imageio.metadata.IIOMetadataNode; |
| import javax.imageio.stream.ImageOutputStream; |
| |
| import java.io.IOException; |
| |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NamedNodeMap; |
| |
| /** |
| * An Adobe APP14 (Application-Specific) marker segment. |
| */ |
| class AdobeMarkerSegment extends MarkerSegment { |
| int version; |
| int flags0; |
| int flags1; |
| int transform; |
| private static final int ID_SIZE = 5; |
| |
| AdobeMarkerSegment(int transform) { |
| super(JPEG.APP14); |
| version = 101; |
| flags0 = 0; |
| flags1 = 0; |
| this.transform = transform; |
| } |
| |
| AdobeMarkerSegment(JPEGBuffer buffer) throws IOException { |
| super(buffer); |
| buffer.bufPtr += ID_SIZE; // Skip the id |
| version = (buffer.buf[buffer.bufPtr++] & 0xff) << 8; |
| version |= buffer.buf[buffer.bufPtr++] & 0xff; |
| flags0 = (buffer.buf[buffer.bufPtr++] & 0xff) << 8; |
| flags0 |= buffer.buf[buffer.bufPtr++] & 0xff; |
| flags1 = (buffer.buf[buffer.bufPtr++] & 0xff) << 8; |
| flags1 |= buffer.buf[buffer.bufPtr++] & 0xff; |
| transform = buffer.buf[buffer.bufPtr++] & 0xff; |
| buffer.bufAvail -= length; |
| } |
| |
| AdobeMarkerSegment(Node node) throws IIOInvalidTreeException { |
| this(0); // default transform will be changed |
| updateFromNativeNode(node, true); |
| } |
| |
| IIOMetadataNode getNativeNode() { |
| IIOMetadataNode node = new IIOMetadataNode("app14Adobe"); |
| node.setAttribute("version", Integer.toString(version)); |
| node.setAttribute("flags0", Integer.toString(flags0)); |
| node.setAttribute("flags1", Integer.toString(flags1)); |
| node.setAttribute("transform", Integer.toString(transform)); |
| |
| return node; |
| } |
| |
| void updateFromNativeNode(Node node, boolean fromScratch) |
| throws IIOInvalidTreeException { |
| // Only the transform is required |
| NamedNodeMap attrs = node.getAttributes(); |
| transform = getAttributeValue(node, attrs, "transform", 0, 2, true); |
| int count = attrs.getLength(); |
| if (count > 4) { |
| throw new IIOInvalidTreeException |
| ("Adobe APP14 node cannot have > 4 attributes", node); |
| } |
| if (count > 1) { |
| int value = getAttributeValue(node, attrs, "version", |
| 100, 255, false); |
| version = (value != -1) ? value : version; |
| value = getAttributeValue(node, attrs, "flags0", 0, 65535, false); |
| flags0 = (value != -1) ? value : flags0; |
| value = getAttributeValue(node, attrs, "flags1", 0, 65535, false); |
| flags1 = (value != -1) ? value : flags1; |
| } |
| } |
| |
| /** |
| * Writes the data for this segment to the stream in |
| * valid JPEG format. |
| */ |
| void write(ImageOutputStream ios) throws IOException { |
| length = 14; |
| writeTag(ios); |
| byte [] id = {0x41, 0x64, 0x6F, 0x62, 0x65}; |
| ios.write(id); |
| write2bytes(ios, version); |
| write2bytes(ios, flags0); |
| write2bytes(ios, flags1); |
| ios.write(transform); |
| } |
| |
| static void writeAdobeSegment(ImageOutputStream ios, int transform) |
| throws IOException { |
| (new AdobeMarkerSegment(transform)).write(ios); |
| } |
| |
| void print () { |
| printTag("Adobe APP14"); |
| System.out.print("Version: "); |
| System.out.println(version); |
| System.out.print("Flags0: 0x"); |
| System.out.println(Integer.toHexString(flags0)); |
| System.out.print("Flags1: 0x"); |
| System.out.println(Integer.toHexString(flags1)); |
| System.out.print("Transform: "); |
| System.out.println(transform); |
| } |
| } |