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; TIFFReadRawTile() returns -1 if
       an error was encountered.

DIAGNOSTICS

       All error messages are directed to the TIFFErrorExtR() routine.

SEE ALSO

       TIFFOpen (3tiff), TIFFReadEncodedTile (3tiff), TIFFReadTile (3tiff), TIFFtile (3tiff), libtiff (3tiff)

AUTHOR

       LibTIFF contributors

COPYRIGHT

       1988-2024, LibTIFF contributors