java.lang.Object
- com.itextpdf.io.codec.TIFFFaxDecoder

public class TIFFFaxDecoder
extends java.lang.Object

Class that can decode TIFF files.

Field Summary

Fields
Modifier and Type	Field	Description
`static short[]`	`additionalMakeup`
`private int`	`bitPointer`
`(package private) static short[]`	`black`
`private int`	`bytePointer`
`private int`	`changingElemSize`
`private int`	`compression`
`private int[]`	`currChangingElems`
`private byte[]`	`data`
`private int`	`fillBits`
`private int`	`fillOrder`
`static byte[]`	`flipTable`
`private int`	`h`
`(package private) static short[]`	`initBlack`
`private int`	`lastChangingElement`
`private int`	`oneD`
`private int[]`	`prevChangingElems`
`private boolean`	`recoverFromImageError`
`(package private) static int[]`	`table1`
`(package private) static int[]`	`table2`
`(package private) static short[]`	`twoBitBlack`
`(package private) static byte[]`	`twoDCodes`
`private int`	`uncompressedMode`
`private int`	`w`
`(package private) static short[]`	`white`

Constructor Summary

Constructors
Constructor Description

TIFFFaxDecoder(int fillOrder, int w, int h)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private boolean`	`advancePointer()`
`void`	`decode1D(byte[] buffer, byte[] compData, int startX, int height)`
`void`	`decode2D(byte[] buffer, byte[] compData, int startX, int height, long tiffT4Options)`
`private int`	`decodeBlackCodeWord()`
`void`	`decodeNextScanline(byte[] buffer, int lineOffset, int bitOffset)`
`void`	`decodeT6(byte[] buffer, byte[] compData, int startX, int height, long tiffT6Options)`
`private int`	`decodeWhiteCodeWord()`
`private void`	`getNextChangingElement(int a0, boolean isWhite, int[] ret)`
`private int`	`nextLesserThan8Bits(int bitsToGet)`
`private int`	`nextNBits(int bitsToGet)`
`private int`	`readEOL()`
`static void`	`reverseBits(byte[] b)`	Reverses the bits in the array
`void`	`setRecoverFromImageError(boolean recoverFromImageError)`
`private void`	`setToBlack(byte[] buffer, int lineOffset, int bitOffset, int numBits)`
`private void`	`updatePointer(int bitsToMoveBack)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

bitPointer
```
private int bitPointer
```

bytePointer
```
private int bytePointer
```

data
```
private byte[] data
```

w
```
private int w
```

h
```
private int h
```

fillOrder
```
private int fillOrder
```

changingElemSize
```
private int changingElemSize
```

prevChangingElems
```
private int[] prevChangingElems
```

currChangingElems
```
private int[] currChangingElems
```

lastChangingElement
```
private int lastChangingElement
```

compression
```
private int compression
```

uncompressedMode
```
private int uncompressedMode
```

fillBits
```
private int fillBits
```

oneD
```
private int oneD
```

recoverFromImageError
```
private boolean recoverFromImageError
```

table1
```
static int[] table1
```

table2
```
static int[] table2
```

flipTable
```
public static byte[] flipTable
```

white
```
static short[] white
```

additionalMakeup
```
public static short[] additionalMakeup
```

initBlack
```
static short[] initBlack
```

twoBitBlack
```
static short[] twoBitBlack
```

black
```
static short[] black
```

twoDCodes
```
static byte[] twoDCodes
```

Constructor Detail
- TIFFFaxDecoder
```
public TIFFFaxDecoder(int fillOrder,
                      int w,
                      int h)
```
  Parameters:
  
  fillOrder - The fill order of the compressed data bytes.
  
  w - width
  
  h - height

Method Detail

reverseBits
```
public static void reverseBits(byte[] b)
```
Reverses the bits in the array

Parameters:

b - the bits to reverse

decode1D

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

decodeNextScanline

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

decode2D

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

decodeT6

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

setToBlack

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

decodeWhiteCodeWord
```
private int decodeWhiteCodeWord()
```

decodeBlackCodeWord
```
private int decodeBlackCodeWord()
```

readEOL
```
private int readEOL()
```

getNextChangingElement

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

nextNBits

private int nextNBits(int bitsToGet)

nextLesserThan8Bits

private int nextLesserThan8Bits(int bitsToGet)

updatePointer

private void updatePointer(int bitsToMoveBack)

advancePointer
```
private boolean advancePointer()
```

setRecoverFromImageError

public void setRecoverFromImageError(boolean recoverFromImageError)

Class TIFFFaxDecoder

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

bitPointer

bytePointer

data

w

h

fillOrder

changingElemSize

prevChangingElems

currChangingElems

lastChangingElement

compression

uncompressedMode

fillBits

oneD

recoverFromImageError

table1

table2

flipTable

white

additionalMakeup

initBlack

twoBitBlack

black

twoDCodes

Constructor Detail

TIFFFaxDecoder

Method Detail

reverseBits

decode1D

decodeNextScanline

decode2D

decodeT6

setToBlack

decodeWhiteCodeWord

decodeBlackCodeWord

readEOL

getNextChangingElement

nextNBits

nextLesserThan8Bits

updatePointer

advancePointer

setRecoverFromImageError