com.lowagie.text.pdf.codec

Class TIFFFaxDecoder

public class TIFFFaxDecoder extends Object

Field Summary
static short[]	additionalMakeup
int	bitPointer
static short[]	black
int	bytePointer
int	changingElemSize
int	compression
int[]	currChangingElems
byte[]	data
int	fillBits
int	fillOrder
static byte[]	flipTable
int	h
static short[]	initBlack
int	lastChangingElement
int	oneD
int[]	prevChangingElems
static int[]	table1
static int[]	table2
static short[]	twoBitBlack
static byte[]	twoDCodes
int	uncompressedMode
int	w
static short[]	white

Constructor Summary
	TIFFFaxDecoder(int fillOrder, int w, int h)

Method Summary
boolean	advancePointer()
void	decode1D(byte[] buffer, byte[] compData, int startX, int height)
void	decode2D(byte[] buffer, byte[] compData, int startX, int height, long tiffT4Options)
int	decodeBlackCodeWord()
void	decodeNextScanline(byte[] buffer, int lineOffset, int bitOffset)
void	decodeT6(byte[] buffer, byte[] compData, int startX, int height, long tiffT6Options)
int	decodeWhiteCodeWord()
void	getNextChangingElement(int a0, boolean isWhite, int[] ret)
int	nextLesserThan8Bits(int bitsToGet)
int	nextNBits(int bitsToGet)
int	readEOL(boolean isFirstEOL)
static void	reverseBits(byte[] b) Reverses the bits in the array
void	setToBlack(byte[] buffer, int lineOffset, int bitOffset, int numBits)
void	updatePointer(int bitsToMoveBack)

Field Detail

additionalMakeup

static short[] additionalMakeup

bitPointer

private int bitPointer

black

static short[] black

bytePointer

private int bytePointer

changingElemSize

private int changingElemSize

compression

private int compression

currChangingElems

private int[] currChangingElems

data

private byte[] data

fillBits

private int fillBits

fillOrder

private int fillOrder

flipTable

static byte[] flipTable

h

private int h

initBlack

static short[] initBlack

lastChangingElement

private int lastChangingElement

oneD

private int oneD

prevChangingElems

private int[] prevChangingElems

table1

static int[] table1

table2

static int[] table2

twoBitBlack

static short[] twoBitBlack

twoDCodes

static byte[] twoDCodes

uncompressedMode

private int uncompressedMode

w

private int w

white

static short[] white

Constructor Detail

TIFFFaxDecoder

public TIFFFaxDecoder(int fillOrder, int w, int h)

Parameters: fillOrder The fill order of the compressed data bytes. w h

Method Detail

advancePointer

private boolean advancePointer()

decode1D

public void decode1D(byte[] buffer, byte[] compData, int startX, int height)

decode2D

public void decode2D(byte[] buffer, byte[] compData, int startX, int height, long tiffT4Options)

decodeBlackCodeWord

private int decodeBlackCodeWord()

decodeNextScanline

public void decodeNextScanline(byte[] buffer, int lineOffset, int bitOffset)

decodeT6

public void decodeT6(byte[] buffer, byte[] compData, int startX, int height, long tiffT6Options)

decodeWhiteCodeWord

private int decodeWhiteCodeWord()

getNextChangingElement

private void getNextChangingElement(int a0, boolean isWhite, int[] ret)

nextLesserThan8Bits

private int nextLesserThan8Bits(int bitsToGet)

nextNBits

private int nextNBits(int bitsToGet)

readEOL

private int readEOL(boolean isFirstEOL)

reverseBits

public static void reverseBits(byte[] b)

Reverses the bits in the array

Parameters: b the bits to reverse

Since: 2.0.7

setToBlack

private void setToBlack(byte[] buffer, int lineOffset, int bitOffset, int numBits)

updatePointer

private void updatePointer(int bitsToMoveBack)