org.eclipse.swt.internal.image

Class JPEGHuffmanTable

java.lang.Object

org.eclipse.swt.internal.image.JPEGSegment

org.eclipse.swt.internal.image.JPEGVariableSizeSegment

org.eclipse.swt.internal.image.JPEGHuffmanTable

final class JPEGHuffmanTable
extends JPEGVariableSizeSegment

JPEGHuffmanTable class actually represents two types of object: 1) A DHT (Define Huffman Tables) segment, which may represent as many as 4 Huffman tables. In this case, the tables are stored in the allTables array. 2) A single Huffman table. In this case, the allTables array will be null. The 'reference' field is stored in both types of object, but 'initialize' is only called if the object represents a DHT.

Structure Diagram

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static byte[]	ACChrominanceTable
(package private) static byte[]	ACLuminanceTable
(package private) JPEGHuffmanTable[]	allTables
(package private) static byte[]	DCChrominanceTable
(package private) static byte[]	DCLuminanceTable
(package private) int[]	dhMaxCodes
(package private) int[]	dhMinCodes
(package private) int[]	dhValPtrs
(package private) int[]	dhValues
(package private) byte[]	ehCodeLengths
(package private) int[]	ehCodes
(package private) int	tableClass
(package private) int	tableIdentifier

Fields inherited from class org.eclipse.swt.internal.image.JPEGSegment

reference

Constructor Summary

Constructors

Constructor and Description
JPEGHuffmanTable(byte[] reference)
JPEGHuffmanTable(LEDataInputStream byteStream)

Method Summary

Methods

Modifier and Type	Method and Description
JPEGHuffmanTable[]	getAllTables()
static JPEGHuffmanTable	getDefaultACChrominanceTable()
static JPEGHuffmanTable	getDefaultACLuminanceTable()
static JPEGHuffmanTable	getDefaultDCChrominanceTable()
static JPEGHuffmanTable	getDefaultDCLuminanceTable()
int[]	getDhMaxCodes()
int[]	getDhMinCodes()
int[]	getDhValPtrs()
int[]	getDhValues()
int	getTableClass()
int	getTableIdentifier()
(package private) void	initialize()
int	signature()

Methods inherited from class org.eclipse.swt.internal.image.JPEGSegment

getSegmentLength, getSegmentMarker, setSegmentLength, setSegmentMarker, verify, writeToStream

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

allTables

JPEGHuffmanTable[] allTables

tableClass

int tableClass

tableIdentifier

int tableIdentifier

dhMaxCodes

int[] dhMaxCodes

dhMinCodes

int[] dhMinCodes

dhValPtrs

int[] dhValPtrs

dhValues

int[] dhValues

ehCodes

int[] ehCodes

ehCodeLengths

byte[] ehCodeLengths

DCLuminanceTable

static byte[] DCLuminanceTable

DCChrominanceTable

static byte[] DCChrominanceTable

ACLuminanceTable

static byte[] ACLuminanceTable

ACChrominanceTable

static byte[] ACChrominanceTable

Constructor Detail

JPEGHuffmanTable

public JPEGHuffmanTable(byte[] reference)

JPEGHuffmanTable

public JPEGHuffmanTable(LEDataInputStream byteStream)

Method Detail

getAllTables

public JPEGHuffmanTable[] getAllTables()

getDefaultACChrominanceTable

public static JPEGHuffmanTable getDefaultACChrominanceTable()

getDefaultACLuminanceTable

public static JPEGHuffmanTable getDefaultACLuminanceTable()

getDefaultDCChrominanceTable

public static JPEGHuffmanTable getDefaultDCChrominanceTable()

getDefaultDCLuminanceTable

public static JPEGHuffmanTable getDefaultDCLuminanceTable()

getDhMaxCodes

public int[] getDhMaxCodes()

getDhMinCodes

public int[] getDhMinCodes()

getDhValPtrs

public int[] getDhValPtrs()

getDhValues

public int[] getDhValues()

getTableClass

public int getTableClass()

getTableIdentifier

public int getTableIdentifier()

initialize

void initialize()

signature

public int signature()

Overrides:

signature in class JPEGSegment