[MPlayer-dev-eng] [PATCH] yadif SSE2/SSSE3 optimization
Guillaume Poirier
gpoirier at mplayerhq.hu
Thu Nov 13 13:46:27 CET 2008
Zhou, Zongyi wrote:
> Hi all,
>
> I made this patch from ffdshow-mt branch. The original SSE2/SSSE3 codes are written by h.yamagata.
>
Good.
> I ported those codes back to mplayer and replaced all movdqa/movdqu with movaps/movups.
>
I don't think it's such a good idea.Even though the opcode is shorter,
on Nehalem movaps/movups are no longer equivalent to their integer
equivalents on the Nehalem, so that substitution is should be justified
on your part I think.
Please note that I'm just quoting what Jason Garrett-Glaser wrote on his
initial commit for Nehalem support in x264.
Guillaume
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