Package com.twelvemonkeys.imageio.plugins.psd

Class HorizontalDeDifferencingStream

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable
    final class HorizontalDeDifferencingStream
extends java.io.InputStream
    A decoder for data converted using "horizontal differencing predictor".
    Version:
    $Id: HorizontalDeDifferencingStream.java,v 1.0 11.03.13 14:20 haraldk Exp$

    • Constructor Summary

      Constructors 
      Constructor Description
      HorizontalDeDifferencingStream​(java.io.InputStream stream, int columns, int samplesPerPixel, int bitsPerSample, java.nio.ByteOrder byteOrder)  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()  
      private void decodeRow()  
      private boolean fetch()  
      (package private) static boolean isValidBPS​(int bitsPerSample)  
      int read()  
      int read​(byte[] b, int off, int len)  
      long skip​(long n)  

      • Methods inherited from class java.io.InputStream

        available, mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, transferTo

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • columns

        private final int columns

      • samplesPerPixel

        private final int samplesPerPixel

      • bitsPerSample

        private final int bitsPerSample

      • channel

        private final java.nio.channels.ReadableByteChannel channel

      • buffer

        private final java.nio.ByteBuffer buffer

    • Constructor Detail

      • HorizontalDeDifferencingStream

        public HorizontalDeDifferencingStream​(java.io.InputStream stream,
                                      int columns,
                                      int samplesPerPixel,
                                      int bitsPerSample,
                                      java.nio.ByteOrder byteOrder)

    • Method Detail

      • isValidBPS

        static boolean isValidBPS​(int bitsPerSample)

      • fetch

        private boolean fetch()
               throws java.io.IOException
        Throws:
        java.io.IOException

      • decodeRow

        private void decodeRow()

      • read

        public int read()
         throws java.io.IOException
        Specified by:
        read in class java.io.InputStream
        Throws:
        java.io.IOException

      • read

        public int read​(byte[] b,
                int off,
                int len)
         throws java.io.IOException
        Overrides:
        read in class java.io.InputStream
        Throws:
        java.io.IOException

      • skip

        public long skip​(long n)
          throws java.io.IOException
        Overrides:
        skip in class java.io.InputStream
        Throws:
        java.io.IOException

      • close

        public void close()
           throws java.io.IOException
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Overrides:
        close in class java.io.InputStream
        Throws:
        java.io.IOException