TIFFREADRAWTILE(3tiff) LibTIFF TIFFREADRAWTILE(3tiff)
TIFFReadRawTile - return an undecoded tile of data from an open TIFF
file
#include <tiffio.h>
tmsize_t TIFFReadRawTile(TIFF *tif, uint32_t tile, void *buf,
tmsize_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; TIFFReadRawTile() returns -1 if an error was encountered.
All error messages are directed to the TIFFErrorExtR() routine.
TIFFOpen (3tiff), TIFFReadEncodedTile (3tiff), TIFFReadTile (3tiff),
TIFFtile (3tiff), libtiff (3tiff)
LibTIFF contributors
1988-2025, LibTIFF contributors
4.7 March 7, 2026 TIFFREADRAWTILE(3tiff)
NAME
TIFFReadRawTile - return an undecoded tile of data from an open TIFF
file
SYNOPSIS
#include <tiffio.h>
tmsize_t TIFFReadRawTile(TIFF *tif, uint32_t tile, void *buf,
tmsize_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
1988-2025, LibTIFF contributors
4.7 March 7, 2026 TIFFREADRAWTILE(3tiff)