NAME

       TIFFReadEncodedTile - read and decode a tile of data from an open TIFF file

SYNOPSIS

       #include <tiffio.h>

       int TIFFReadEncodedTile(TIFF *tif, ttile_t tile, tdata_t buf, tsize_t size)

DESCRIPTION

       Read  the  specified  tile  of  data  and place up to size bytes of decompressed information in the (user
       supplied) data buffer.

NOTES

       The value of tile is a ``raw tile number.''  That is, the caller must take into account  whether  or  not
       the  data  are  organized in separate planes (PlanarConfiguration=2).  TIFFComputeTile automatically does
       this when converting an (x,y,z,sample) coordinate quadruple to a tile number. To read a full tile of data
       the data buffer should be at least as large as the value returned by TIFFTileSize.

       The library attempts to hide bit- and byte-ordering differences between the image and the native  machine
       by converting data to the native machine order.  Bit reversal is done if the FillOrder tag is opposite to
       the  native  machine  bit  order.  16-  and 32-bit samples are automatically byte-swapped if the file was
       written with a byte order opposite to the native machine byte order,

RETURN VALUES

       The actual number of bytes of data that were placed in buf is returned; TIFFReadEncodedTile returns -1 if
       an error was encountered.

DIAGNOSTICS

       All error messages are directed to the TIFFError(3TIFF) routine.

SEE ALSO

       TIFFOpen(3TIFF), TIFFReadRawTile(3TIFF), TIFFReadTile(3TIFF), libtiff(3TIFF)

       Libtiff library home page: http://www.remotesensing.org/libtiff/

libtiff                                         October 13, 2006                      TIFFReadEncodedTile(3TIFF)