Class PngLzBlockReader

java.lang.Object

org.eclipse.swt.internal.image.PngLzBlockReader

public class PngLzBlockReader
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final int	COMPRESSED_DYNAMIC
(package private) static final int	COMPRESSED_FIXED
(package private) byte	compressionType
(package private) int	copyBytesRemaining
(package private) int	copyIndex
(package private) static final int[]	distanceBases
(package private) static final int	END_OF_COMPRESSED_BLOCK
(package private) static final int[]	extraDistanceBits
(package private) static final int[]	extraLengthBits
(package private) static final int	FIRST_CODE_LENGTH_CODE
(package private) static final int	FIRST_DISTANCE_CODE
(package private) static final int	FIRST_LENGTH_CODE
(package private) PngHuffmanTables	huffmanTables
(package private) boolean	isLastBlock
(package private) static final int	LAST_CODE_LENGTH_CODE
(package private) static final int	LAST_DISTANCE_CODE
(package private) static final int	LAST_LENGTH_CODE
(package private) static final int[]	lengthBases
(package private) PngDecodingDataStream	stream
(package private) static final int	UNCOMPRESSED
(package private) int	uncompressedBytesRemaining
(package private) byte[]	window
(package private) int	windowIndex

Constructor Summary

Constructors

Constructor	Description
PngLzBlockReader(PngDecodingDataStream stream)

Method Summary

Modifier and Type	Method	Description
private void	assertBlockAtEnd()
(package private) void	assertCompressedDataAtEnd()
(package private) byte	getNextByte()
private byte	getNextCompressedByte()
(package private) void	readNextBlockHeader()
(package private) void	setWindowSize(int windowSize)

Methods inherited from class Object

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

Field Details

isLastBlock

boolean isLastBlock

compressionType

byte compressionType

uncompressedBytesRemaining

int uncompressedBytesRemaining

stream

PngDecodingDataStream stream

huffmanTables

PngHuffmanTables huffmanTables

window

byte[] window

windowIndex

int windowIndex

copyIndex

int copyIndex

copyBytesRemaining

int copyBytesRemaining

UNCOMPRESSED

static final int UNCOMPRESSED

See Also:

• Constant Field Values

COMPRESSED_FIXED

static final int COMPRESSED_FIXED

See Also:

• Constant Field Values

COMPRESSED_DYNAMIC

static final int COMPRESSED_DYNAMIC

See Also:

• Constant Field Values

END_OF_COMPRESSED_BLOCK

static final int END_OF_COMPRESSED_BLOCK

See Also:

• Constant Field Values

FIRST_LENGTH_CODE

static final int FIRST_LENGTH_CODE

See Also:

• Constant Field Values

LAST_LENGTH_CODE

static final int LAST_LENGTH_CODE

See Also:

• Constant Field Values

FIRST_DISTANCE_CODE

static final int FIRST_DISTANCE_CODE

See Also:

• Constant Field Values

LAST_DISTANCE_CODE

static final int LAST_DISTANCE_CODE

See Also:

• Constant Field Values

FIRST_CODE_LENGTH_CODE

static final int FIRST_CODE_LENGTH_CODE

See Also:

• Constant Field Values

LAST_CODE_LENGTH_CODE

static final int LAST_CODE_LENGTH_CODE

See Also:

• Constant Field Values

lengthBases

static final int[] lengthBases

extraLengthBits

static final int[] extraLengthBits

distanceBases

static final int[] distanceBases

extraDistanceBits

static final int[] extraDistanceBits

Constructor Details

PngLzBlockReader

PngLzBlockReader(PngDecodingDataStream stream)

Method Details

setWindowSize

void setWindowSize(int windowSize)

readNextBlockHeader

void readNextBlockHeader()
                  throws IOException

Throws:

IOException

getNextByte

byte getNextByte()
          throws IOException

Throws:

IOException

assertBlockAtEnd

private void assertBlockAtEnd()
                       throws IOException

Throws:

IOException

assertCompressedDataAtEnd

void assertCompressedDataAtEnd()
                        throws IOException

Throws:

IOException

getNextCompressedByte

private byte getNextCompressedByte()
                            throws IOException

Throws:

IOException