SWAB(3TIFF)							   SWAB(3TIFF)



NAME
       TIFFGetBitRevTable, TIFFReverseBits, TIFFSwabShort, TIFFSwabLong, TIFF-
       SwabArrayOfShort, TIFFSwabArrayOfLong - byte- and bit-swapping routines

SYNOPSIS
       #include <tiffio.h>

       const unsigned char* TIFFGetBitRevTable(int reversed)
       void TIFFReverseBits(u_char *data, unsigned long nbytes)
       void TIFFSwabShort(uint16 *data)
       void TIFFSwabLong(uint32 *data)
       void TIFFSwabArrayOfShort(uint16 *data, unsigned long nshorts)
       void TIFFSwabArrayOfLong(uint32 *data, unsigned long nlongs)

DESCRIPTION
       The  following  routines are used by the library to swap 16- and 32-bit
       data and to reverse the order of bits in bytes.

       TIFFSwabShort and TIFFSwabLong swap the bytes in a  single  16-bit  and
       32-bit  item,  respectively.  TIFFSwabArrayOfShort and TIFFSwabArrayOf-
       Long swap the bytes in an array of 16-bit  and  32-bit  items,  respec-
       tively.

       TIFFReverseBits	replaces  each	byte  in data with the equivalent bit-
       reversed value. This operation is performed with a lookup table,  which
       is  returned using the TIFFGetBitRevTable function.  reversed parameter
       specifies which table should be returned. Supply  1  if	you  want  bit
       reversal  table. Supply 0 to get the table that do not reverse bit val-
       ues. It is a lookup table that can be used  as  an  identity  function;
       i.e.  TIFFNoBitRevTable[n] == n.

DIAGNOSTICS
       None.

SEE ALSO
       libtiff(3TIFF)

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



libtiff 		       November 04, 2004		   SWAB(3TIFF)

NAME - SYNOPSIS - DESCRIPTION - DIAGNOSTICS - SEE ALSO -