[x265] Fwd: [PATCH Review Only] asm code for blockcopy_sp, 8x4 partion

[chen]

At 2013-11-07 00:12:47,"Praveen Tiwari" <praveen at multicorewareinc.com> wrote:




---------- Forwarded message ----------
From: chen<chenm003 at 163.com>
Date: Wed, Nov 6, 2013 at 8:00 PM
Subject: Re: [x265] [PATCH Review Only] asm code for blockcopy_sp, 8x4 partition
To: Development for x265 <x265-devel at videolan.org>



>+pshufb     m1,      m0
>+pshufb     m2,      m0
>+pshufb     m3,      m0
>+pshufb     m4,      m0

>>packuswb


Our C code is not using saturation. For this we have to change our C primitive, probably merge calcrecon.


Yes, the C code has not saturation, but we can insert assert() to C code and use packuswb in asm code, it reduce a memory load operator.


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