Re: [MPlayer-dev-eng] [PATCH] [RFC] Add intrinsic based SSE2 support to OSD.
- Date: Sat, 18 May 2019 17:42:06 +0200
- From: Reimar Döffinger <Reimar.Doeffinger@xxxxxx>
- Subject: Re: [MPlayer-dev-eng] [PATCH] [RFC] Add intrinsic based SSE2 support to OSD.
On 18 May 2019 16:39:12 CEST, "Reimar Döffinger" <Reimar.Doeffinger@xxxxxx> wrote:
>In particular, more functions are missing and
>intrinsic support needs to be auto-detected.
>Intrinsics are not well liked for good reason,
>but it is much faster to implement and compilers
>are no longer completely horrible for x86.
>Speed is about 2x and it matches the C code instead
>of the less accurate MMX code.
Note that I only benchmarked on 64 bit.
Due to register pressure on at least some of them it might be best to not enable on 32-bit.
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