Table of Contents
TIFFReadRawTile - return an undecoded tile
of data from an open TIFF
file
#include <tiffio.h>
tsize_t TIFFReadRawTile(TIFF* tif, ttile_t tile, tdata_t buf, tsize_t size)
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.
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(3)
routine.
libtiff(3)
, TIFFOpen(3)
, TIFFReadEncodedTile(3)
,
TIFFReadTile(3)
, TIFFTileSize(3)
Table of Contents