Class TIFFJPEGDecompressor

    • Field Detail

      • JPEGReader

        protected javax.imageio.ImageReader JPEGReader
      • JPEGParam

        protected javax.imageio.ImageReadParam JPEGParam
      • hasJPEGTables

        protected boolean hasJPEGTables
      • tables

        protected byte[] tables
      • data

        private byte[] data
    • Constructor Detail

      • TIFFJPEGDecompressor

        public TIFFJPEGDecompressor()
    • Method Detail

      • beginDecoding

        public void beginDecoding()
        Description copied from class: TIFFDecompressor
        This routine is called prior to a sequence of calls to the decode method, in order to allow any necessary tables or other structures to be initialized based on metadata values. This routine is guaranteed to be called any time the metadata values have changed.

        The default implementation computes tables used by the decode method to rescale components to different bit depths. Thus, if this method is overridden, it is important for the subclass method to call super(), unless it overrides decode as well.

        Overrides:
        beginDecoding in class TIFFDecompressor
      • decodeRaw

        public void decodeRaw​(byte[] b,
                              int dstOffset,
                              int bitsPerPixel,
                              int scanlineStride)
                       throws java.io.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:
        java.io.IOException - if an error occurs reading from the source ImageInputStream.
      • finalize

        protected void finalize()
                         throws java.lang.Throwable
        Overrides:
        finalize in class java.lang.Object
        Throws:
        java.lang.Throwable