Manual Pages for UNIX Operating System command usage for man mlib_VideoColorBlendABGR_Inp

mediaLib Library Functions    mlib_VideoColorBlendABGR_Inp(3MLIB)



NAME
     mlib_VideoColorBlendABGR_Inp,
     mlib_VideoColorBlendABGR_ResetAlpha_Inp   -  in-place  image
     blend

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

     void mlib_VideoColorBlendABGR_Inp(mlib_u32 *src1dst,
          const mlib_u32 *src2,mlib_s32 src1dst_w,
          mlib_s32 src1dst_h,mlib_s32 src2_w,
          mlib_s32 src2_h,mlib_s32 src2_x,
          mlib_s32 src2_y,mlib_s32 src1dst_lb,
          mlib_s32 src2_lb,mlib_blend src1dst_blend,
          mlib_blend src2_blend);


     void mlib_VideoColorBlendABGR_ResetAlpha_Inp(mlib_u32 *src1dst,
          const mlib_u32 *src2, mlib_s32 src1dst_w,
          mlib_s32 src1dst_h, mlib_s32 src2_w,
          mlib_s32 src2_h, mlib_s32 src2_x,
          mlib_s32 src2_y, mlib_s32 src1dst_lb,
          mlib_s32 src2_lb, mlib_blend src1dst_blend,
          mlib_blend src2_blend);


DESCRIPTION
     The  functions  use  the  following  equation  for  blending
     images:

         src1dst = (src1dst * src1dst_blend) + (src2 * src2_blend)



     The two multi-banded source images (src1dst  and  src2)  are
     blended  together  and  the  result  is  stored  in src1dst.
     src1dst_blend specifies the blend function to be applied  to
     the  src1dst  image and src2_blend specifies the blend func-
     tion to be applied to the  src2  image.  src2_x  and  src2_y
     specify  position  of src2 relative to the upper-left corner
     of src1dst.  src2 is clipped to the boundaries  of  src1dst,
     if needed.


     Possible blend functions are:

         MLIB_BLEND_ZERO
         MLIB_BLEND_ONE
         MLIB_BLEND_SRC_ALPHA
         MLIB_BLEND_ONE_MINUS_SRC_ALPHA
         MLIB_BLEND_DST_ALPHA



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mediaLib Library Functions    mlib_VideoColorBlendABGR_Inp(3MLIB)



         MLIB_BLEND_ONE_MINUS_DST_ALPHA



     MLIB_BLEND_DST_ALPHA is the alpha band of image src1  scaled
     to  the range 0 to 1. MLIB_BLEND_SRC_ALPHA is the alpha band
     of image src2 scaled to the range 0 to 1. The  output  pixel
     bands are clamped to the range 0 to 255.


     For the mlib_VideoColorBlendABGR_ResetAlpha_Inp()  function,
     the  alpha  value of every pixel in destination image is set
     to 0 after blending is complete.

PARAMETERS
     Each of the functions takes the following arguments:

     src1dst          Pointer to  1st  input  image  (also  dest.
                      image).


     src2             Pointer to 2nd input image.


     src1dst_w        src1dst image width in pixels.


     src1dst_h        src1dst image height in rows.


     src2_w           src2 image width in pixels.


     src2_h           src2 image height in rows.


     src2_x           src2 horizontal displacement  (in  pixels),
                      relative   to   the  upper-left  corner  of
                      src1dst.


     src2_y           src2 vertical displacement (in rows), rela-
                      tive to the upper-left corner of src1dst.


     src1dst_lb       Linebytes for src1dst image.


     src2_lb          Linebytes for src2 image.






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mediaLib Library Functions    mlib_VideoColorBlendABGR_Inp(3MLIB)



     src1dst_blend    Blend function for src1dst image.


     src2_blend       Blend function for src2 image.


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_VideoColorBlendABGR(3MLIB), attributes(5)





























SunOS 5.11           Last change: 2 Mar 2007                    3