Manual Pages for UNIX Operating System command usage for man mlib_VideoColorRGBint_to_BGRAint

mediaLib Library Functions
                          mlib_VideoColorRGBint_to_BGRAint(3MLIB)



NAME
     mlib_VideoColorRGBint_to_BGRAint - convert  RGB  interleaved
     to BGRA interleaved

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

     void mlib_VideoColorRGBint_to_BGRAint(mlib_u8 *bgra,
          const mlib_u8 *rgb, const mlib_u8 *a_array,
          mlib_u8 a_const, mlib_s32 w, mlib_s32 h,
          mlib_s32 dlb, mlib_s32 slb, mlib_s32 alb);


DESCRIPTION
     The interleaved RGB stream and the  A  values  are  combined
     into an interleaved BGRA byte stream.


     The alpha values for this function  work  in  the  following
     fashion:

         o    If the a_array pointer is not NULL, the values  are
              taken  from  there. It has to have the at least 1/3
              the dimension of the RGB buffer.

         o    If the a_array pointer is NULL,  the  alpha  values
              for every pixel are set to a_const.


     In other words, this function's inner loop works like this:

       bgra[0] = rgb[2];
       bgra[1] = rgb[1];
       bgra[2] = rgb[0];
       bgra[3] = (a_array == NULL) ? a_const : a_array[0];


PARAMETERS
     The function takes the following arguments:

     bgra       Pointer to the output BGRA buffer.


     rgb        Pointer to the input RGB buffer.


     a_array    Pointer to the alpha buffer.






SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions
                          mlib_VideoColorRGBint_to_BGRAint(3MLIB)



     a_const    Constant alpha value.


     w          Image width in pixels.


     h          Image height in lines.


     dlb        Linebytes of the output buffer.


     slb        Linebytes of the input buffer.


     alb        Linebytes of the alpha buffer.


RETURN VALUES
     None.

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



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | MT-Safe                     |
    |_____________________________|_____________________________|


SEE ALSO
     mlib_VideoColorRGBint_to_ABGRint(3MLIB), attributes(5)
















SunOS 5.11           Last change: 2 Mar 2007                    2






mediaLib Library Functions
                          mlib_VideoColorRGBint_to_BGRAint(3MLIB)






















































SunOS 5.11           Last change: 2 Mar 2007                    3