it.geosolutions.imageioimpl.plugins.tiff
Class TIFFCodecLibFaxDecompressor

Object
  extended by TIFFDecompressor
      extended by TIFFFaxDecompressor
          extended by TIFFCodecLibFaxDecompressor

public class TIFFCodecLibFaxDecompressor
extends TIFFFaxDecompressor


Field Summary
 
Fields inherited from class TIFFFaxDecompressor
compression, fillBits, fillOrder, oneD, uncompressedMode
 
Fields inherited from class TIFFDecompressor
activeSrcHeight, activeSrcMinX, activeSrcMinY, activeSrcWidth, bitsPerSample, byteCount, colorConverter, colorMap, 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
TIFFCodecLibFaxDecompressor(int bilevelCompression)
          Constructor which initializes the internal codecLib decoder.
 
Method Summary
 void decodeRaw(byte[] b, int dstOffset, int pixelBitStride, int scanlineStride)
          Decodes the source data into the provided byte array b, starting at the offset given by dstOffset.
 
Methods inherited from class TIFFFaxDecompressor
beginDecoding, decodeNextScanline, decodeRLE, decodeT4, decodeT6
 
Methods inherited from class TIFFDecompressor
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

TIFFCodecLibFaxDecompressor

public TIFFCodecLibFaxDecompressor(int bilevelCompression)
Constructor which initializes the internal codecLib decoder.

Throws:
RuntimeException - if bilevelCompression is not T.4 or T.6 compression or if codecLib is not available.
Method Detail

decodeRaw

public final void decodeRaw(byte[] b,
                            int dstOffset,
                            int pixelBitStride,
                            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.

Overrides:
decodeRaw in class TIFFFaxDecompressor
Parameters:
b - a byte array to be written.
dstOffset - the starting offset in b to be written.
pixelBitStride - 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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