TIFFswab(3tiff)TIFFswab(3tiff)NAME
TIFFswab, TIFFGetBitRevTable, TIFFReverseBits, TIFFSwabShort, TIFFSwab‐
Long, TIFFSwabArrayOfShort, TIFFSwabArrayOfLong - byte- and bit-swap‐
ping 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)
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 done with a lookup table, TIFFBi‐
tRevTable, which is declared public. A second table, TIFFNoBitRevTable,
is also declared public, and is a lookup table that can be used as an
identity function. That is, TIFFNoBitRevTable[n] == n.
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ 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.
05 Apr 2004 TIFFswab(3tiff)
