TIFFReadRawTile(3tiff) - phpMan

TIFFReadRawTile(3TIFF)                                                     TIFFReadRawTile(3TIFF)



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).  TIFFCom-
       puteTile 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;  TIFFReadEncod-
       edTile returns -1 if an error was encountered.

DIAGNOSTICS
       All error messages are directed to the TIFFError(3TIFF) routine.

SEE ALSO
       TIFFOpen(3TIFF),   TIFFReadEncodedTile(3TIFF),  TIFFReadTile(3TIFF),  TIFFTileSize(3TIFF),
       libtiff(3TIFF)

       Libtiff library home page: http://www.remotesensing.org/libtiff/



libtiff                                  October 15, 1995                  TIFFReadRawTile(3TIFF)

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