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TIFFTILE(3T)									     TIFFTILE(3T)

       TIFFTileSize,   TIFFTileRowSize,   TIFFVTileSize,   TIFFDefaultTileSize,  TIFFComputeTile,
       TIFFCheckTile, TIFFNumberOfTiles - tile-related utility routines

       #include <tiffio.h>
       void TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th)
       tsize_t TIFFTileSize(TIFF* tif)
       tsize_t TIFFTileRowSize(TIFF* tif)
       tsize_t TIFFVTileSize(TIFF* tif, uint32 nrows)
       ttile_t TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t sample)
       int TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t sample)
       ttile_t TIFFNumberOfTiles(TIFF* tif)

       TIFFDefaultTileSize returns the pixel width and height of a reasonable-sized  tile;  suit-
       able  for setting up the TileWidth and TileLength tags.	If the tw and th values passed in
       are non-zero, then they are adjusted to	reflect  any  compression-specific  requirements.
       The  returned  width  and  height are constrained to be a multiple of 16 pixels to conform
       with the TIFF specification.

       TIFFTileSize returns the equivalent size for a tile of data as it would be returned  in	a
       call to TIFFReadTile or as it would be expected in a call to TIFFWriteTile.

       TIFFVTileSize returns the number of bytes in a row-aligned tile with nrows of data.

       TIFFTileRowSize returns the number of bytes of a row of data in a tile.

       TIFFComputeTile returns the tile that contains the specified coordinates.  A valid tile is
       always returned; out-of-range coordinate values are clamped to the bounds  of  the  image.
       The  x and y parameters are always used in calculating a tile.  The z parameter is used if
       the image is deeper than 1 slice (ImageDepth>1).  The sample parameter  is  used  only  if
       data are organized in separate planes (PlanarConfiguration=2).

       TIFFCheckTile  returns  a non-zero value if the supplied coordinates are within the bounds
       of the image and zero otherwise.  The x parameter is checked  against  the  value  of  the
       ImageWidth tag.	The y parameter is checked against the value of the ImageLength tag.  The
       z parameter is checked against the value of the ImageDepth tag (if defined).   The  sample
       parameter  is  checked  against the value of the SamplesPerPixel parameter if the data are
       organized in separate planes.

       TIFFNumberOfTiles returns the number of tiles in the image.


       libtiff(3T), TIFFReadEncodedTile(3T), TIFFReadRawTile(3T), TIFFReadTile(3T),  TIFFWriteEn-
       codedTile(3T), TIFFWriteRawTile(3T), TIFFWriteTile(3T)

					February 14, 1992			     TIFFTILE(3T)
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