TIFFReadRawTile =============== Synopsis -------- .. highlight:: c :: #include .. c:function:: tsize_t TIFFReadRawTile(TIFF* tif, ttile_t tile, tdata_t buf, tsize_t size) Description ----------- Read the contents of the specified tile into the (user supplied) data buffer. Note that the value of *tile* is a "raw tile number". That is, the caller must take into account whether or not the data is organized in separate planes (``PlanarConfiguration`` = 2). :c:func:`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 typically be at least as large as the value returned by :c:func:`TIFFTileSize`. Return values ------------- The actual number of bytes of data that were placed in *buf* is returned; :c:func:`TIFFReadRawTile` returns -1 if an error was encountered. Diagnostics ----------- All error messages are directed to the :c:func:`TIFFErrorExtR` routine. See also -------- :doc:`TIFFOpen` (3tiff), :doc:`TIFFReadEncodedTile` (3tiff), :doc:`TIFFReadTile` (3tiff), :doc:`TIFFtile` (3tiff), :doc:`libtiff` (3tiff)