it.geosolutions.imageioimpl.plugins.tiff
Class TIFFPackBitsDecompressor

Object
  extended by TIFFDecompressor
      extended by TIFFPackBitsDecompressor

public class TIFFPackBitsDecompressor
extends TIFFDecompressor


Field Summary
 
Fields inherited from class TIFFDecompressor
activeSrcHeight, activeSrcMinX, activeSrcMinY, activeSrcWidth, bitsPerSample, byteCount, colorConverter, colorMap, compression, destinationBands, dstHeight, dstMinX, dstMinY, dstWidth, dstXOffset, dstYOffset, extraSamples, image, metadata, offset, photometricInterpretation, planar, rawImage, reader, sampleFormat, samplesPerPixel, sourceBands, sourceXOffset, sourceYOffset, srcHeight, srcMinX, srcMinY, srcWidth, stream, subsampleX, subsampleY
 
Constructor Summary
TIFFPackBitsDecompressor()
           
 
Method Summary
 int decode(byte[] srcData, int srcOffset, byte[] dstData, int dstOffset)
           
 void decodeRaw(byte[] b, int dstOffset, int bitsPerPixel, int scanlineStride)
          Decodes the source data into the provided byte array b, starting at the offset given by dstOffset.
 
Methods inherited from class TIFFDecompressor
beginDecoding, createRawImage, decode, decodeRaw, decodeRaw, decodeRaw, decodeRaw, getRawImageType, getRawImageTypeSpecifier, setActiveSrcHeight, setActiveSrcMinX, setActiveSrcMinY, setActiveSrcWidth, setBitsPerSample, setByteCount, setColorConverter, setColorMap, setCompression, setDestinationBands, setDstHeight, setDstMinX, setDstMinY, setDstWidth, setDstXOffset, setDstYOffset, setExtraSamples, setImage, setMetadata, setOffset, setPhotometricInterpretation, setPlanar, setReader, setSampleFormat, setSamplesPerPixel, setSourceBands, setSourceXOffset, setSourceYOffset, setSrcHeight, setSrcMinX, setSrcMinY, setSrcWidth, setStream, setSubsampleX, setSubsampleY
 
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TIFFPackBitsDecompressor

public TIFFPackBitsDecompressor()
Method Detail

decode

public int decode(byte[] srcData,
                  int srcOffset,
                  byte[] dstData,
                  int dstOffset)
           throws IOException
Throws:
IOException

decodeRaw

public void decodeRaw(byte[] b,
                      int dstOffset,
                      int bitsPerPixel,
                      int scanlineStride)
               throws IOException
Description copied from class: TIFFDecompressor
Decodes the source data into the provided byte array b, starting at the offset given by dstOffset. Each pixel occupies bitsPerPixel bits, with no padding between pixels. Scanlines are separated by scanlineStride bytes.

Specified by:
decodeRaw in class TIFFDecompressor
Parameters:
b - a byte array to be written.
dstOffset - the starting offset in b to be written.
bitsPerPixel - the number of bits for each pixel.
scanlineStride - the number of bytes to advance between that starting pixels of each scanline.
Throws:
IOException - if an error occurs reading from the source ImageInputStream.


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