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JRE 8 rt.jar - javax.* Package Source Code
JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries.
JRE (Java Runtime) 8 is the runtime environment included in JDK 8.
JRE 8 rt.jar libraries are divided into 6 packages:
com.* - Internal Oracle and Sun Microsystems libraries java.* - Standard Java API libraries. javax.* - Extended Java API libraries. jdk.* - JDK supporting libraries. org.* - Third party libraries. sun.* - Old libraries developed by Sun Microsystems.
JAR File Information:
Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib 63,596,151 rt.jar
Here is the list of Java classes of the javax.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ javax/imageio/plugins/jpeg/JPEGImageReadParam.java
/* * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package javax.imageio.plugins.jpeg; import javax.imageio.ImageReadParam; /** * This class adds the ability to set JPEG quantization and Huffman * tables when using the built-in JPEG reader plug-in. An instance of * this class will be returned from the * <code>getDefaultImageReadParam</code> methods of the built-in JPEG * <code>ImageReader</code>. * * <p> The sole purpose of these additions is to allow the * specification of tables for use in decoding abbreviated streams. * The built-in JPEG reader will also accept an ordinary * <code>ImageReadParam</code>, which is sufficient for decoding * non-abbreviated streams. * * <p> While tables for abbreviated streams are often obtained by * first reading another abbreviated stream containing only the * tables, in some applications the tables are fixed ahead of time. * This class allows the tables to be specified directly from client * code. If no tables are specified either in the stream or in a * <code>JPEGImageReadParam</code>, then the stream is presumed to use * the "standard" visually lossless tables. See {@link JPEGQTable JPEGQTable} * and {@link JPEGHuffmanTable JPEGHuffmanTable} for more information * on the default tables. * * <p> The default <code>JPEGImageReadParam</code> returned by the * <code>getDefaultReadParam</code> method of the builtin JPEG reader * contains no tables. Default tables may be obtained from the table * classes {@link JPEGQTable JPEGQTable} and * {@link JPEGHuffmanTable JPEGHuffmanTable}. * * <p> If a stream does contain tables, the tables given in a * <code>JPEGImageReadParam</code> are ignored. Furthermore, if the * first image in a stream does contain tables and subsequent ones do * not, then the tables given in the first image are used for all the * abbreviated images. Once tables have been read from a stream, they * can be overridden only by tables subsequently read from the same * stream. In order to specify new tables, the {@link * javax.imageio.ImageReader#setInput setInput} method of * the reader must be called to change the stream. * * <p> Note that this class does not provide a means for obtaining the * tables found in a stream. These may be extracted from a stream by * consulting the IIOMetadata object returned by the reader. * * <p> * For more information about the operation of the built-in JPEG plug-ins, * see the <A HREF="../../metadata/doc-files/jpeg_metadata.html">JPEG * metadata format specification and usage notes</A>. * */ public class JPEGImageReadParam extends ImageReadParam { private JPEGQTable[] qTables = null; private JPEGHuffmanTable[] DCHuffmanTables = null; private JPEGHuffmanTable[] ACHuffmanTables = null; /** * Constructs a <code>JPEGImageReadParam</code>. */ public JPEGImageReadParam() { super(); } /** * Returns <code>true</code> if tables are currently set. * * @return <code>true</code> if tables are present. */ public boolean areTablesSet() { return (qTables != null); } /** * Sets the quantization and Huffman tables to use in decoding * abbreviated streams. There may be a maximum of 4 tables of * each type. These tables are ignored once tables are * encountered in the stream. All arguments must be * non-<code>null</code>. The two arrays of Huffman tables must * have the same number of elements. The table specifiers in the * frame and scan headers in the stream are assumed to be * equivalent to indices into these arrays. The argument arrays * are copied by this method. * * @param qTables an array of quantization table objects. * @param DCHuffmanTables an array of Huffman table objects. * @param ACHuffmanTables an array of Huffman table objects. * * @exception IllegalArgumentException if any of the arguments * is <code>null</code>, has more than 4 elements, or if the * numbers of DC and AC tables differ. * * @see #unsetDecodeTables */ public void setDecodeTables(JPEGQTable[] qTables, JPEGHuffmanTable[] DCHuffmanTables, JPEGHuffmanTable[] ACHuffmanTables) { if ((qTables == null) || (DCHuffmanTables == null) || (ACHuffmanTables == null) || (qTables.length > 4) || (DCHuffmanTables.length > 4) || (ACHuffmanTables.length > 4) || (DCHuffmanTables.length != ACHuffmanTables.length)) { throw new IllegalArgumentException ("Invalid JPEG table arrays"); } this.qTables = (JPEGQTable[])qTables.clone(); this.DCHuffmanTables = (JPEGHuffmanTable[])DCHuffmanTables.clone(); this.ACHuffmanTables = (JPEGHuffmanTable[])ACHuffmanTables.clone(); } /** * Removes any quantization and Huffman tables that are currently * set. * * @see #setDecodeTables */ public void unsetDecodeTables() { this.qTables = null; this.DCHuffmanTables = null; this.ACHuffmanTables = null; } /** * Returns a copy of the array of quantization tables set on the * most recent call to <code>setDecodeTables</code>, or * <code>null</code> if tables are not currently set. * * @return an array of <code>JPEGQTable</code> objects, or * <code>null</code>. * * @see #setDecodeTables */ public JPEGQTable[] getQTables() { return (qTables != null) ? (JPEGQTable[])qTables.clone() : null; } /** * Returns a copy of the array of DC Huffman tables set on the * most recent call to <code>setDecodeTables</code>, or * <code>null</code> if tables are not currently set. * * @return an array of <code>JPEGHuffmanTable</code> objects, or * <code>null</code>. * * @see #setDecodeTables */ public JPEGHuffmanTable[] getDCHuffmanTables() { return (DCHuffmanTables != null) ? (JPEGHuffmanTable[])DCHuffmanTables.clone() : null; } /** * Returns a copy of the array of AC Huffman tables set on the * most recent call to <code>setDecodeTables</code>, or * <code>null</code> if tables are not currently set. * * @return an array of <code>JPEGHuffmanTable</code> objects, or * <code>null</code>. * * @see #setDecodeTables */ public JPEGHuffmanTable[] getACHuffmanTables() { return (ACHuffmanTables != null) ? (JPEGHuffmanTable[])ACHuffmanTables.clone() : null; } }
⏎ javax/imageio/plugins/jpeg/JPEGImageReadParam.java
Or download all of them as a single archive file:
File name: jre-rt-javax-1.8.0_191-src.zip File size: 5381005 bytes Release date: 2018-10-28 Download
⇒ JRE 8 rt.jar - org.* Package Source Code
2024-07-16, 285005👍, 7💬
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