[x265] [PATCH] calcSaoStatsCu, SAO_EO_1: sign asm code integration

[Steve Borho]

On 01/02, praveen at multicorewareinc.com wrote:
> # HG changeset patch
> # User Praveen Tiwari
> # Date 1420203158 -19800
> # Node ID 7f38638d2f694054e3497952fc3085cca25f77b8
> # Parent  85d356e250751678dc384b01b29341cf7e3ebd2e
> calcSaoStatsCu, SAO_EO_1: sign asm code integration
> 
> diff -r 85d356e25075 -r 7f38638d2f69 source/encoder/sao.cpp
> --- a/source/encoder/sao.cpp	Fri Jan 02 17:56:53 2015 +0530
> +++ b/source/encoder/sao.cpp	Fri Jan 02 18:22:38 2015 +0530
> @@ -701,8 +701,15 @@
>                  rec += stride;
>              }
>  
> -            for (x = 0; x < ctuWidth; x++)
> -                upBuff1[x] = signOf(rec[x] - rec[x - stride]);
> +            if (!(ctuWidth & 15))
> +            {
> +                primitives.sign(upBuff1, rec, &rec[- stride], ctuWidth);

same for these other patches, a CTU will not be smaller than 16x16

> +            }
> +            else
> +            {
> +                for (x = 0; x < ctuWidth; x++)
> +                    upBuff1[x] = signOf(rec[x] - rec[x - stride]);
> +            }
>  
>              for (y = startY; y < endY; y++)
>              {
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-- 
Steve Borho