> I thought I see if I can speed up PNG loading by vectorizing alpha
> premultiplication, and it actually does give a nice speedup: [...]
Nice!
> The code is rather terse but readable. I can add comments.
Not necessary, I think.
> Needs some GCC/clang checks, ...
Indeed, probably controlled by a configuration macro.
> ... as well as implementing the big-endian case (or disable it for
> big-endian). I couldn't find any endianness macros in FreeType.
We don't have such macros; it should be easy to add, though. On the
other hand: Do big-endian processors exist at all that support gcc's
(or clang's) `vector_size' extension?
Are you going to work further on your patch towards upstream FreeType
integration?
Werner
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