TIFFReadRawTile
Section: Misc. Reference Manual Pages (3T)
Updated: October 15, 1995
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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;
TIFFReadEncodedTile
returns -1 if an error was encountered.
DIAGNOSTICS
All error messages are directed to the
TIFFError(3T)
routine.
SEE ALSO
libtiff(3T),
TIFFOpen(3T),
TIFFReadEncodedTile(3T),
TIFFReadTile(3T),
TIFFTileSize(3T)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- DIAGNOSTICS
-
- SEE ALSO
-
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