TIFFREADRAWTILE(3tiff) LibTIFF TIFFREADRAWTILE(3tiff)
NAME
TIFFReadRawTile - return an undecoded tile of data from an open TIFF
file
SYNOPSIS
#include <tiffio.h>
TIFFReadRawTile(3) *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(3), TIFFReadEncodedTile(3), TIFFReadTile(3),
TIFFtile(3), libtiff(3)
AUTHOR
LibTIFF contributors
COPYRIGHT
1988-2022, LibTIFF contributors
4.6 October 9, 2023 TIFFREADRAWTILE(3tiff)
tiff 4.6.0 - Generated Sun Oct 15 06:21:03 CDT 2023