TIFFReadEncodedTile man page on FreeBSD

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TIFFReadEncodedTile(3TIFF)			    TIFFReadEncodedTile(3TIFF)

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

       #include <tiffio.h>

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

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

       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  automati‐
       cally  byte-swapped  if the file was written with a byte order opposite
       to the native machine byte order,

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

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

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

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

libtiff			       October 13, 2006	    TIFFReadEncodedTile(3TIFF)

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