Package gov.nih.mipav.model.file

Class TIFFLZWDecoder

  • public class TIFFLZWDecoder
extends java.lang.Object
    A class for performing LZW decoding.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      (package private) int[] andTable
      DOCUMENT ME!
      (package private) int bitPointer
      DOCUMENT ME!
      (package private) int bitsToGet
      DOCUMENT ME!
      (package private) int bytePointer
      DOCUMENT ME!
      (package private) byte[] data
      DOCUMENT ME!
      (package private) int dstIndex
      DOCUMENT ME!
      (package private) int h
      DOCUMENT ME!
      (package private) int nextBits
      DOCUMENT ME!
      (package private) int nextData
      DOCUMENT ME!
      (package private) int predictor
      DOCUMENT ME!
      (package private) int samplesPerPixel
      DOCUMENT ME!
      (package private) byte[][] stringTable
      DOCUMENT ME!
      (package private) int tableIndex
      DOCUMENT ME!
      (package private) byte[] uncompData
      DOCUMENT ME!
      (package private) int w
      DOCUMENT ME!

    • Constructor Summary

      Constructors 
      Constructor Description
      TIFFLZWDecoder​(int w, int predictor, int samplesPerPixel)
      Creates a new TIFFLZWDecoder object.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void 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)
      Append newString to the end of oldString.
      byte[] decode​(byte[] data, byte[] uncompData, int h)
      Method to decode LZW compressed data.
      int getNextCode()
      Returns the next 9, 10, 11 or 12 bits.
      void initializeStringTable()
      Initialize the string table.
      void writeString​(byte[] string)
      Write out the string just uncompressed.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • andTable

        int[] andTable
        DOCUMENT ME!

      • bytePointer

        int bytePointer
        DOCUMENT ME!

      • bitPointer

        int bitPointer
        DOCUMENT ME!

      • data

        byte[] data
        DOCUMENT ME!

      • uncompData

        byte[] uncompData
        DOCUMENT ME!

      • dstIndex

        int dstIndex
        DOCUMENT ME!

      • nextBits

        int nextBits
        DOCUMENT ME!

      • nextData

        int nextData
        DOCUMENT ME!

      • predictor

        int predictor
        DOCUMENT ME!

      • samplesPerPixel

        int samplesPerPixel
        DOCUMENT ME!

      • stringTable

        byte[][] stringTable
        DOCUMENT ME!

      • tableIndex

        int tableIndex
        DOCUMENT ME!

      • bitsToGet

        int bitsToGet
        DOCUMENT ME!

      • w

        int w
        DOCUMENT ME!

      • h

        int h
        DOCUMENT ME!

    • Constructor Detail

      • TIFFLZWDecoder

        public TIFFLZWDecoder​(int w,
                      int predictor,
                      int samplesPerPixel)
        Creates a new TIFFLZWDecoder object.
        Parameters:
        w - DOCUMENT ME!
        predictor - DOCUMENT ME!
        samplesPerPixel - DOCUMENT ME!

    • Method Detail

      • addStringToTable

        public void addStringToTable​(byte[] string)
        Add a new string to the string table.
        Parameters:
        string - DOCUMENT ME!

      • addStringToTable

        public void addStringToTable​(byte[] oldString,
                             byte newString)
        Add a new string to the string table.
        Parameters:
        oldString - DOCUMENT ME!
        newString - DOCUMENT ME!

      • composeString

        public byte[] composeString​(byte[] oldString,
                            byte newString)
        Append newString to the end of oldString.
        Parameters:
        oldString - DOCUMENT ME!
        newString - DOCUMENT ME!
        Returns:
        DOCUMENT ME!

      • decode

        public byte[] decode​(byte[] data,
                     byte[] uncompData,
                     int h)
        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.
        Returns:
        DOCUMENT ME!
        Throws:
        java.lang.UnsupportedOperationException - DOCUMENT ME!

      • getNextCode

        public int getNextCode()
        Returns the next 9, 10, 11 or 12 bits.
        Returns:
        DOCUMENT ME!

      • initializeStringTable

        public void initializeStringTable()
        Initialize the string table.

      • writeString

        public void writeString​(byte[] string)
        Write out the string just uncompressed.
        Parameters:
        string - DOCUMENT ME!