NAME

       TIFFGetBitRevTable,      TIFFReverseBits,      TIFFSwabShort,     TIFFSwabLong,     TIFFSwabArrayOfShort,
       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_t *data)
       void TIFFSwabLong(uint32_t *data)
       void TIFFSwabArrayOfShort(uint16_t *data, unsigned long nshorts)
       void TIFFSwabArrayOfLong(uint32_t *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 TIFFSwabArrayOfLong swap the bytes in an  array  of  16-bit  and  32-bit  items,
       respectively.

       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 values. 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.simplesystems.org/libtiff/

libtiff                                         November 04, 2004                                    SWAB(3TIFF)