[FFmpeg-devel] [PATCH] x86: hevc: adding transform_add
michaelni at gmx.at
Wed Aug 20 01:38:09 CEST 2014
On Mon, Aug 18, 2014 at 03:28:02PM -0300, James Almer wrote:
> On 18/08/14 5:01 AM, Pierre Edouard Lepere wrote:
> > Hi,
> > here's the new version of the patch. Sorry for the delay.
> > James, I have not done 8-bit AVX versions because it requires unpacks that are done differently in AVX.
> Aren't you thinking of AVX2 with 256bits wide registers? With AVX i mean an xmm version of
> the function that takes advantage of the three-operand instruction format, which should be
> essentially the same as the SSE2 version except for the many saved movdqa between registers.
> Anyway, LGTM and this can be committed as is. There's some of room for improvements (AVX
> version, or making all the functions use 8 or less xmm registers) but that can be done later
> instead of sending the same patch a fourth time.
> Not sure if someone else wants to comment (Ronald?).
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
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