Package com.iizix.term.remote

Class ScreenCompression

java.lang.Object
com.iizix.term.remote.ScreenCompression
public class ScreenCompression extends Object
A simple screen compression using RLE algorithm.
Author:
Christopher Mindus

  • Constructor Summary

    Constructors
    Constructor
    Description
    ScreenCompression()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    byte[]
    packBytes(byte[] in, int start, int length)
    Function to pack an array of bytes with RLE sentinel bytes 0xFD (8-bit) and 0xFF (16-bit), 0xFE [byte] if the [byte] is 0xFD, 0xFE or 0xFF.
    char[]
    packChars(char[] in, int start, int length)
    Function to pack an array of characters with RLE sentinel bytes 0x7F (8-bit) and 0xFF (16-bit), 0xFE [char] if the [char] is 0x7F, 0xFE or 0xFF.
    byte[]
    unpackBytes(byte[] in)
    Function to unpack an array of bytes with RLE sentinel bytes 0xFE (8-bit) and 0xFF (16-bit), 0xFD [byte] if the [byte] is 0xFD, 0xFE or 0xFF.
    char[]
    unpackChars(char[] in)
    Function to unpack an array of characters with RLE sentinel bytes 0x7F (8-bit) and 0xFF (16-bit), 0xFE [char] if the [char] is 0x7F, 0xFF or 0xFE.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • ScreenCompression

      public ScreenCompression()

  • Method Details

    • packChars

      public char[] packChars(char[] in, int start, int length)
      Function to pack an array of characters with RLE sentinel bytes 0x7F (8-bit) and 0xFF (16-bit), 0xFE [char] if the [char] is 0x7F, 0xFE or 0xFF.
      Parameters:
      in - The input array.
      start - The starting position.
      length - The length of the data.
      Returns:
      The output array, RLE packed.

    • unpackChars

      public char[] unpackChars(char[] in)
      Function to unpack an array of characters with RLE sentinel bytes 0x7F (8-bit) and 0xFF (16-bit), 0xFE [char] if the [char] is 0x7F, 0xFF or 0xFE.
      Parameters:
      in - The input array.
      Returns:
      The output array, RLE packed.

    • packBytes

      public byte[] packBytes(byte[] in, int start, int length)
      Function to pack an array of bytes with RLE sentinel bytes 0xFD (8-bit) and 0xFF (16-bit), 0xFE [byte] if the [byte] is 0xFD, 0xFE or 0xFF.
      Parameters:
      in - The input array.
      start - The starting position.
      length - The length of the data.
      Returns:
      The output array, RLE packed.

    • unpackBytes

      public byte[] unpackBytes(byte[] in)
      Function to unpack an array of bytes with RLE sentinel bytes 0xFE (8-bit) and 0xFF (16-bit), 0xFD [byte] if the [byte] is 0xFD, 0xFE or 0xFF.
      Parameters:
      in - The input array.
      Returns:
      The output array, RLE packed.