TIFFswab(3TIFF)

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 *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 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.remotesensing.org/libtiff/