Misc. Reference Manual Pages TIFFswab(3tiff)
NAME
TIFFswab, TIFFGetBitRevTable, TIFFReverseBits, TIFFSwabShort, TIFFSwabLong, TIFFSwabArrayOfShort,TIFFSwabArrayOfLong - byte- and bit-swapping routines
SYNOPSIS
#include
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)
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 single16-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 theequivalent bit-reversed value. This operation is done with a
lookup table, TIFFBitRevTable, which is declared public. A second table, TIFFNoBitRevTable, is also declared public,and is a lookup table that can be used as an identity func-
tion. That is, TIFFNoBitRevTable[n] == n.See attributes(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | image/library/libtiff ||_____________________________|_____________________________|
| Interface stability | Uncommitted ||_____________________________|_____________________________|
libtiff(3) This man page was originally written by Sam Leffler. Updated by Breda McColgan, Sun Microsystems Inc., 2004. SunOS 5.10 Last change: 05 Apr 2004 1