TIFFSWAB(3tiff)                     LibTIFF                    TIFFSWAB(3tiff)

NAME
       TIFFswab - 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 TIFFSwabLong8(uint64_t *lp)

       void TIFFSwabFloat(float *fp)

       void TIFFSwabDouble(double *dp)

       void TIFFSwabArrayOfShort(uint16_t *wp, tmsize_t n)

       void TIFFSwabArrayOfTriples(uint8_t *tp, tmsize_t n)

       void TIFFSwabArrayOfLong(uint32_t *lp, tmsize_t n)

       void TIFFSwabArrayOfLong8(uint64_t *lp, tmsize_t n)

       void TIFFSwabArrayOfFloat(float *fp, tmsize_t n)

       void TIFFSwabArrayOfDouble(double *dp, tmsize_t n)

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

       TIFFSwabShort() and TIFFSwabLong() and TIFFSwabFloat() swap  the  bytes
       in a single 16- and 32-bit item, respectively.

       TIFFSwabLong8()  and TIFFSwabDouble() swap the bytes in a single 64-bit
       item.

       TIFFSwabArrayOfTriples() swap the first and  the  third  byte  of  each
       triple  (three  bytes)  within  the byte array. The second byte of each
       triple stays untouched.

       TIFFSwabArrayOfShort()           and             TIFFSwabArrayOfLong(),
       TIFFSwabArrayOfFloat()  swap  the  bytes  in an array of 16- and 32-bit
       items, respectively.

       TIFFSwabArrayOfLong8() and TIFFSwabArrayOfDouble() swap the bytes in an
       array of 64-bit items.

       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.  The re-
       versed parameter specifies which table should be returned. Supply 1  if
       you  want bit reversal table. Supply 0 to get the table that do not re-
       verse 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)

AUTHOR
       LibTIFF contributors

COPYRIGHT
       1988-2025, LibTIFF contributors

4.5                              Jan 03, 2025                  TIFFSWAB(3tiff)

Czas wygenerowania: 0.00015 sek.

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