TIFFReadRawTile
Section: Misc. Reference Manual Pages (3T)
Updated: December 16, 1991
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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)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- DIAGNOSTICS
-
- SEE ALSO
-
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