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 buffer 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)