mediaLib Library Functions       mlibImageDivAlphaFpInp(3MLIB)



NAME
     mlibImageDivAlphaFpInp - alpha channel division, in place

SYNOPSIS
     cc [ flag... ] file... -lmlib [ library... ]
     #include 

     mlibstatus mlibImageDivAlphaFpInp(mlibimage *srcdst, mlibs32 cmask);


DESCRIPTION
     The mlibImageDivAlphaFpInp() function  divides  floating-
     point  color  channels  by  the alpha channel on a pixel-by-
     pixel basis, in place.


     It uses the following equation:

       srcdst[x][y][c] = srcdst[x][y][c] / srcdst[x][y][a]



     where c and a are the indices for the color channels and the
     alpha channel, respectively, so c != a.


     The operation follows the IE-754 standard.

PARAMETERS
     The function takes the following arguments:

     srcdst    Pointer to source and destination image.


     cmask     Channel mask to indicate the alpha  channel.  Each
               bit of the mask represents a channel in the image.
               The channel corresponding to the 1 bit of cmask is
               the alpha channel.


RETURN VALUES
     The function returns MLIBSUCES if  successful.  Otherwise
     it returns MLIBFAILURE.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:








SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions       mlibImageDivAlphaFpInp(3MLIB)



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Committed                   
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     mlibImageDivAlpha(3MLIB),     mlibImageDivAlphaFp(3MLIB),
     mlibImageDivAlphaInp(3MLIB), attributes(5)











































SunOS 5.11           Last change: 2 Mar 2007                    2