TIFFReadRawTile(3T) TIFFReadRawTile(3T)
NAME
TIFFReadRawTile - return an undecoded tile of data from an open TIFF file
SYNOPSIS
#include <tiffio.h>
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). 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 buf-
fer should typically be at least as large as the value returned by TIFFTileSize.
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(3T) routine.
SEE ALSO
libtiff(3T), TIFFOpen(3T), TIFFReadEncodedTile(3T), TIFFReadTile(3T), TIFFTileSize(3T)
October 15, 1995 TIFFReadRawTile(3T)
