TIFFReadRawTile(3T)

NAME
TIFFReadRawTile - return an undecoded tile of data from an open TIFF file

SYNOPSIS
#include <tiffio.h>
int TIFFReadRawTile(TIFF* tif, u_int tile, u_char* buf, u_int size)

DESCRIPTION
Read the contents of the specified tile into the (user supplied) data buffer. The actual number of bytes of data that were placed in buf is returned; TIFFReadEncodedTile() returns -1 if an error was encountered. 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().

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

SEE ALSO
intro(3T), TIFFOpen(3T), TIFFReadEncodedTile(3T), TIFFReadTile(3T)