Class TIFFLZWDecoder
java.lang.Object
com.gitlab.pdftk_java.com.lowagie.text.pdf.TIFFLZWDecoder
A class for performing LZW decoding.
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- $Id: TIFFLZWDecoder.java 498740 2007-01-22 18:35:57Z dvholten $
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Field Summary
FieldsModifier and TypeFieldDescription(package private) int[]
(package private) int
(package private) int
(package private) int
(package private) byte[]
(package private) int
(package private) int
(package private) int
(package private) byte[][]
(package private) int
(package private) OutputStream
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
addStringToTable
(byte[] string) Add a new string to the string table.void
addStringToTable
(byte[] oldString, byte newString) Add a new string to the string table.byte[]
composeString
(byte[] oldString, byte newString) AppendnewString
to the end ofoldString
.decode
(byte[] data, OutputStream uncompData) Method to decode LZW compressed data.int
void
Initialize the string table.void
writeString
(byte[] string) Write out the string just uncompressed.
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Field Details
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stringTable
byte[][] stringTable -
data
byte[] data -
uncompData
OutputStream uncompData -
tableIndex
int tableIndex -
bitsToGet
int bitsToGet -
bytePointer
int bytePointer -
bitPointer
int bitPointer -
dstIndex
int dstIndex -
nextData
int nextData -
nextBits
int nextBits -
andTable
int[] andTable
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Constructor Details
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TIFFLZWDecoder
public TIFFLZWDecoder()
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Method Details
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decode
Method to decode LZW compressed data.- Parameters:
data
- The compressed data.uncompData
- Array to return the uncompressed data in.h
- The number of rows the compressed data contains.
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initializeStringTable
public void initializeStringTable()Initialize the string table. -
writeString
public void writeString(byte[] string) Write out the string just uncompressed. -
addStringToTable
public void addStringToTable(byte[] oldString, byte newString) Add a new string to the string table. -
addStringToTable
public void addStringToTable(byte[] string) Add a new string to the string table. -
composeString
public byte[] composeString(byte[] oldString, byte newString) AppendnewString
to the end ofoldString
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getNextCode
public int getNextCode()
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