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|
TIFFWriteEncodedTile
====================
Synopsis
--------
.. highlight:: c
::
#include <tiffio.h>
.. c:function:: tmsize_t TIFFWriteEncodedTile(TIFF* tif, uint32_t tile, void *buf, tmsize_t size)
Description
-----------
Compress *size* bytes of raw data from *buf* and **append** the result
to the end of the specified tile. Note that the value of *tile* is a
"raw tile number". That is, the caller must take into account whether
or not the data are organized in separate planes
(``PlanarConfiguration`` = 2).
:c:func:`TIFFComputeTile` automatically does this when converting an
(x,y,z,sample) coordinate quadruple to a tile number.
Notes
-----
The library writes encoded data using the native machine byte order.
Correctly implemented TIFF readers are expected to do any necessary
byte-swapping to correctly process image data with ``BitsPerSample``
greater than 8.
Return values
-------------
-1 is returned if an error was encountered. Otherwise, the value of
*size* is returned.
Diagnostics
-----------
All error messages are directed to the :c:func:`TIFFErrorExtR` routine.
``%s: File not open for writing``:
The file was opened for reading, not writing.
``Can not write tiles to a stripped image``:
The image is assumed to be organized in strips because neither of the
``TileWidth`` or ``TileLength`` tags have been set with
:c:func:`TIFFSetField`.
``%s: Must set "ImageWidth" before writing data``:
The image's width has not been set before the first write. See
:c:func:`TIFFSetField` for information on how to do this.
``%s: Must set "PlanarConfiguration" before writing data``:
The organization of data has not be defined before the first write.
See :c:func:`TIFFSetField` for information on how to do this.
``%s: No space for tile arrays"``:
There was not enough space for the arrays that hold tile offsets and
byte counts.
See also
--------
:doc:`TIFFOpen` (3tiff),
:doc:`TIFFWriteTile` (3tiff),
:doc:`TIFFWriteRawTile` (3tiff),
:doc:`libtiff` (3tiff)
|
