OpenJDK 27 · com.sun.imageio.plugins.tiff.TIFFFaxDecompressor

Field Summary

Modifier and Type	Field and Description
private static short[]	additionalMakeup
private int	bitPointer
private int	bitsPerScanline
private static short[]	black
private byte[]	buffer
private int	bytePointer
private int	changingElemSize
private int[]	currChangingElems
private byte[]	data
private int	fillBits EOL padding flag: 1 if fill bits have been added before an EOL such that the EOL ends on a byte boundary, 0 otherwise.
private int	fillOrder The logical order of bits within a byte.
pack-priv static byte[]	flipTable
private int	h
private static short[]	initBlack
private int	lastChangingElement
private int	lineBitNum
private int	oneD Coding dimensionality: 1 for 2-dimensional, 0 for 1-dimensional.
private int[]	prevChangingElems
private int	t4Options
private int	t6Options
private static int[]	table1
private static int[]	table2
private static short[]	twoBitBlack
private static byte[]	twoDCodes
private int	uncompressedMode Uncompressed mode flag: 1 if uncompressed, 0 if not.
private int	w
private static short[]	white

Constructor Summary

Access	Constructor and Description
public	TIFFFaxDecompressor()

Method Summary

Modifier and Type	Method and Description
public void	beginDecoding() Overrides com.sun.imageio.plugins.tiff.TIFFDecompressor.beginDecoding. Invokes the superclass method and then sets instance variables on the basis of the metadata set on this decompressor.
private int	decodeBlackCodeWord()
public void	decodeNextScanline(int lineIndex)
public void	decodeRaw(byte[] b, int dstOffset, int pixelBitStride, int scanlineStride) Implements abstract com.sun.imageio.plugins.tiff.TIFFDecompressor.decodeRaw. Decodes the source data into the provided `byte` array `b`, starting at the offset given by `dstOffset`.
public void	decodeRLE()
public void	decodeT4()
public synchronized void	decodeT6()
private int	decodeWhiteCodeWord()
private int	findNextLine()
private void	getNextChangingElement(int a0, boolean isWhite, int[] ret)
private int	nextLesserThan8Bits(int bitsToGet)
private int	nextNBits(int bitsToGet)
private void	setToBlack(int bitNum, int numBits)
private void	updatePointer(int bitsToMoveBack)
private void	warning(String msg)

Field Detail

additionalMakeup	back to summary
private static short[] additionalMakeup

bitPointer	back to summary
private int bitPointer

bitsPerScanline	back to summary
private int bitsPerScanline

black	back to summary
private static short[] black

buffer	back to summary
private byte[] buffer

bytePointer	back to summary
private int bytePointer

changingElemSize	back to summary
private int changingElemSize

currChangingElems	back to summary
private int[] currChangingElems

data	back to summary
private byte[] data

fillBits	back to summary
private int fillBits EOL padding flag: 1 if fill bits have been added before an EOL such that the EOL ends on a byte boundary, 0 otherwise.

fillOrder	back to summary
private int fillOrder The logical order of bits within a byte. 1 = MSB-to-LSB 2 = LSB-to-MSB (flipped)

fillOrder

back to summary

private int fillOrder

The logical order of bits within a byte.

1 = MSB-to-LSB
2 = LSB-to-MSB (flipped)

flipTable	back to summary
pack-priv static byte[] flipTable

h	back to summary
private int h

initBlack	back to summary
private static short[] initBlack

lastChangingElement	back to summary
private int lastChangingElement

lineBitNum	back to summary
private int lineBitNum

oneD	back to summary
private int oneD Coding dimensionality: 1 for 2-dimensional, 0 for 1-dimensional.

prevChangingElems	back to summary
private int[] prevChangingElems

t4Options	back to summary
private int t4Options

t6Options	back to summary
private int t6Options

table1	back to summary
private static int[] table1

table2	back to summary
private static int[] table2

twoBitBlack	back to summary
private static short[] twoBitBlack

twoDCodes	back to summary
private static byte[] twoDCodes

uncompressedMode	back to summary
private int uncompressedMode Uncompressed mode flag: 1 if uncompressed, 0 if not.

w	back to summary
private int w

white	back to summary
private static short[] white

Constructor Detail

TIFFFaxDecompressor	back to summary
public TIFFFaxDecompressor()

Method Detail

beginDecoding	back to summary
public void beginDecoding() Overrides com.sun.imageio.plugins.tiff.TIFFDecompressor.beginDecoding. Invokes the superclass method and then sets instance variables on the basis of the metadata set on this decompressor. Annotations @Override

beginDecoding

back to summary

public void beginDecoding()

Overrides com.sun.imageio.plugins.tiff.TIFFDecompressor.beginDecoding.

Invokes the superclass method and then sets instance variables on the basis of the metadata set on this decompressor.

Annotations

@Override

decodeBlackCodeWord	back to summary
private int decodeBlackCodeWord() throws IIOException

decodeNextScanline	back to summary
public void decodeNextScanline(int lineIndex) throws IIOException

decodeRaw back to summary

decodeRaw	back to summary
public void decodeRaw(byte[] b, int dstOffset, int pixelBitStride, int scanlineStride) throws IOException Implements abstract com.sun.imageio.plugins.tiff.TIFFDecompressor.decodeRaw. Doc from com.sun.imageio.plugins.tiff.TIFFDecompressor.decodeRaw. Decodes the source data into the provided `byte` array `b`, starting at the offset given by `dstOffset`. Each pixel occupies `bitsPerPixel` bits, with no padding between pixels. Scanlines are separated by `scanlineStride` `byte`s. Annotations @Override Exceptions IOException: if an error occurs reading from the source `ImageInputStream`.

public void decodeRaw(byte[] b, int dstOffset, int pixelBitStride, int scanlineStride) throws IOException

Implements abstract com.sun.imageio.plugins.tiff.TIFFDecompressor.decodeRaw.

Doc from com.sun.imageio.plugins.tiff.TIFFDecompressor.decodeRaw.

Decodes the source data into the provided byte array b, starting at the offset given by dstOffset. Each pixel occupies bitsPerPixel bits, with no padding between pixels. Scanlines are separated by scanlineStride bytes.