Package org.apache.pdfbox.pdmodel.graphics.predictor

Class None

java.lang.Object
org.apache.pdfbox.pdmodel.graphics.predictor.PredictorAlgorithm
org.apache.pdfbox.pdmodel.graphics.predictor.None
public class None extends PredictorAlgorithm
The none algorithm. None(i,j) = Raw(i,j) Raw(i,j) = None(i,j)
Version:
$Revision: 1.3 $
Author:
xylifyx@yahoo.co.uk

  • Constructor Summary

    Constructors
    Constructor
    Description
    None()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    decode(byte[] src, byte[] dest)
    decode a byte array full of image data using the filter that this object implements.
    void
    decodeLine(byte[] src, byte[] dest, int srcDy, int srcOffset, int destDy, int destOffset)
    decode line of pixel data in src from src_offset and width*bpp bytes forward, put the decoded bytes into dest.
    void
    encode(byte[] src, byte[] dest)
    encode a byte array full of image data using the filter that this object implements.
    void
    encodeLine(byte[] src, byte[] dest, int srcDy, int srcOffset, int destDy, int destOffset)
    encode line of pixel data in src from srcOffset and width*bpp bytes forward, put the decoded bytes into dest.

    Methods inherited from class org.apache.pdfbox.pdmodel.graphics.predictor.PredictorAlgorithm

    aboveLeftPixel, abovePixel, checkBufsiz, getBpp, getFilter, getHeight, getWidth, leftPixel, main, setBpp, setHeight, setWidth

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • None

      public None()

  • Method Details

    • encode

      public void encode(byte[] src, byte[] dest)
      encode a byte array full of image data using the filter that this object implements.
      Overrides:
      encode in class PredictorAlgorithm
      Parameters:
      src - buffer
      dest - buffer

    • decode

      public void decode(byte[] src, byte[] dest)
      decode a byte array full of image data using the filter that this object implements.
      Overrides:
      decode in class PredictorAlgorithm
      Parameters:
      src - buffer
      dest - buffer

    • encodeLine

      public void encodeLine(byte[] src, byte[] dest, int srcDy, int srcOffset, int destDy, int destOffset)
      encode line of pixel data in src from srcOffset and width*bpp bytes forward, put the decoded bytes into dest.
      Specified by:
      encodeLine in class PredictorAlgorithm
      Parameters:
      src - raw image data
      dest - encoded data
      srcDy - byte offset between lines
      srcOffset - beginning of line data
      destDy - byte offset between lines
      destOffset - beginning of line data

    • decodeLine

      public void decodeLine(byte[] src, byte[] dest, int srcDy, int srcOffset, int destDy, int destOffset)
      decode line of pixel data in src from src_offset and width*bpp bytes forward, put the decoded bytes into dest.
      Specified by:
      decodeLine in class PredictorAlgorithm
      Parameters:
      src - encoded image data
      dest - raw data
      srcDy - byte offset between lines
      srcOffset - beginning of line data
      destDy - byte offset between lines
      destOffset - beginning of line data