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org.eclipse.swt.internal.image
Class LZWCodec  

java.lang.Object
  org.eclipse.swt.internal.image.LZWCodec

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final class LZWCodec

extends java.lang.Object

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Field Summary
(package private)  int	bitsLeft
(package private)  int	bitsPerPixel
(package private)  byte[]	block
(package private)  int	blockIndex
(package private)  int	blockSize
(package private)  int	buffer
(package private)  int	clearCode
(package private)  int	codeMask
(package private)  int	codeSize
(package private)  int	currentByte
(package private)  int	currentSlot
(package private)  int	endCode
(package private)  org.eclipse.swt.graphics.ImageData	image
(package private)  int	imageHeight
(package private)  int	imageWidth
(package private)  int	imageX
(package private)  int	imageY
(package private)  LEDataInputStream	inputStream
(package private)  boolean	interlaced
(package private)  int	line
(package private)  byte[]	lineArray
(package private)  org.eclipse.swt.graphics.ImageLoader	loader
(package private) static int[]	MASK_TABLE
(package private)  int	newCodes
(package private)  LZWNode[]	nodeStack
(package private)  LEDataOutputStream	outputStream
(package private)  int	pass
(package private)  int[]	prefix
(package private)  int[]	stack
(package private)  int[]	suffix
(package private)  int	topSlot

 

Constructor Summary
(package private)	LZWCodec()

 

Method Summary
(package private)  void	copyRow(byte[] buf, int copies)           Copy duplicate rows of pixel values to the image.
(package private)  void	decode()           Decode the input.
void	decode(LEDataInputStream inputStream, org.eclipse.swt.graphics.ImageLoader loader, org.eclipse.swt.graphics.ImageData image, boolean interlaced, int depth)           Decode the LZW-encoded bytes in the given byte stream into the given DeviceIndependentImage.
(package private)  void	encode()           Encode the image.
void	encode(LEDataOutputStream byteStream, org.eclipse.swt.graphics.ImageData image)           Encode the bytes into the given byte stream from the given DeviceIndependentImage.
(package private)  int	encodeLoop()           Encoding loop broken out to allow early return.
(package private)  void	initializeForDecoding()           Initialize the receiver for decoding the given byte array.
(package private)  void	initializeForEncoding()           Initialize the receiver for encoding the given byte array.
(package private)  int	nextCode()           Answer the next code from the input byte array.
(package private)  int	nextPixel()           Answer the next pixel to encode in the image
(package private)  void	nextPixels(byte[] buf, int lineWidth)           Copy a row of pixel values from the image.
(package private)  void	nextPutCode(int aCode)           Output aCode to the output stream.
(package private)  void	nextPutPixels(byte[] buf)           Copy a row of pixel values to the image.
(package private)  int	readBlock()           Read a block from the byte stream.
(package private)  void	writeBlock()           Write a block to the byte stream.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

bitsPerPixel

int bitsPerPixel

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blockSize

int blockSize

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blockIndex

int blockIndex

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currentByte

int currentByte

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bitsLeft

int bitsLeft

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codeSize

int codeSize

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clearCode

int clearCode

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endCode

int endCode

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newCodes

int newCodes

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topSlot

int topSlot

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currentSlot

int currentSlot

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imageWidth

int imageWidth

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imageHeight

int imageHeight

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imageX

int imageX

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imageY

int imageY

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pass

int pass

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line

int line

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codeMask

int codeMask

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buffer

int buffer

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block

byte[] block

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lineArray

byte[] lineArray

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stack

int[] stack

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suffix

int[] suffix

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prefix

int[] prefix

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nodeStack

LZWNode[] nodeStack

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inputStream

LEDataInputStream inputStream

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outputStream

LEDataOutputStream outputStream

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image

org.eclipse.swt.graphics.ImageData image

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loader

org.eclipse.swt.graphics.ImageLoader loader

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interlaced

boolean interlaced

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MASK_TABLE

static final int[] MASK_TABLE

Constructor Detail

LZWCodec

LZWCodec()

Method Detail

decode

void decode()

Decode the input.

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decode

public void decode(LEDataInputStream inputStream,
                   org.eclipse.swt.graphics.ImageLoader loader,
                   org.eclipse.swt.graphics.ImageData image,
                   boolean interlaced,
                   int depth)

Decode the LZW-encoded bytes in the given byte stream into the given DeviceIndependentImage.

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encode

void encode()

Encode the image.

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encode

public void encode(LEDataOutputStream byteStream,
                   org.eclipse.swt.graphics.ImageData image)

Encode the bytes into the given byte stream from the given DeviceIndependentImage.

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encodeLoop

int encodeLoop()

Encoding loop broken out to allow early return.

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initializeForDecoding

void initializeForDecoding()

Initialize the receiver for decoding the given byte array.

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initializeForEncoding

void initializeForEncoding()

Initialize the receiver for encoding the given byte array.

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nextCode

int nextCode()

Answer the next code from the input byte array.

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nextPixel

int nextPixel()

Answer the next pixel to encode in the image

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nextPixels

void nextPixels(byte[] buf,
                int lineWidth)

Copy a row of pixel values from the image.

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nextPutCode

void nextPutCode(int aCode)

Output aCode to the output stream.

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nextPutPixels

void nextPutPixels(byte[] buf)

Copy a row of pixel values to the image.

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copyRow

void copyRow(byte[] buf,
             int copies)

Copy duplicate rows of pixel values to the image. This is to fill in rows if the image is interlaced.

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readBlock

int readBlock()

Read a block from the byte stream. Return the number of bytes read. Throw an exception if the block could not be read.

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writeBlock

void writeBlock()

Write a block to the byte stream. Throw an exception if the block could not be written.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> eclipse >> swt >> internal >> [ image overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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