[cairo-bugs] [Bug 5845] win32 AlphaBlend should be used for ARGB32 destinations, not just RGB24

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------- Additional Comments From vladimir at pobox.com  2006-02-09 13:11 -------
The docs for BLENDFUNCTION
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/bitmaps_3b3m.asp)
imply that it handles it; that is, it explicitly talks about "If the destination
bitmap has an alpha channel, then the blend is as follows [...]".

No MMX compiled; so far the mmx code only works with gcc, but I'll be
integrating the mmx patches for vs at some point soon.  As for whether it's
faster, that I can't tell you; it certainly doesn't feel any slower, and it
seems like we should use it if it's available, especially since it might be
hardware accelerated.
          
     
     
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