[FFmpeg-devel] [PATCH] UltraSPARC VIS optimized yuv2rgb
Diego Biurrun
diego
Mon Jul 16 23:11:50 CEST 2007
On Mon, Jul 16, 2007 at 10:18:35PM +0200, Balatoni Denes wrote:
>
> Monday 16 July 2007 21:39-kor Diego Biurrun ezt ?rta:
> > The rules say 4 spaces, please change your code to use 4 space
> > indentation.
>
> Okay, I have found the rule. This patch should be fine.
>
> --- libswscale.old/yuv2rgb.c.orig 1970-01-01 01:00:00.000000000 +0100
> +++ libswscale/yuv2rgb.c.orig 2007-07-16 22:06:51.000000000 +0200
Huh?
> --- libswscale.old/yuv2rgb_vis.c 1970-01-01 01:00:00.000000000 +0100
> +++ libswscale/yuv2rgb_vis.c 2007-07-16 22:16:16.000000000 +0200
> @@ -0,0 +1,208 @@
> +
> +static short int __attribute__((aligned(8))) sparc_coeffs[4*10]=
> +{
> + 596, 596, 596, 596, // 16*1.164*32
> + 8266, 8266, 8266, 8266, //128*2.018*32
> + 1602, 1602, 1602, 1602, //128*0.391*32
> + 3330, 3330, 3330, 3330, //128*0.813*32
> + 6537, 6537, 6537, 6537, //128*1.596*32
> + 9535, 9535, 9535, 9535, //1.164*32*256
> + 6660, 6660, 6660, 6660, //0.813*32*256
> + 13074,13074,13074,13074, //1.596*32*256
> + 16531,16531,16531,16531, //2.018*32*256
> + 3203, 3203, 3203, 3203, //0.391*32*256
> +};
This could be vertically aligned.
> +#define YUV2RGB_KERNEL \
> + /* ^^^^ f0=Y f3=u f5=v */ \
> + "fmul8x16 %%f3, %%f48, %%f6 \n\t" \
> + "fmul8x16 %%f19, %%f48, %%f22 \n\t" \
> + "fmul8x16 %%f5, %%f44, %%f8 \n\t" \
> + "fmul8x16 %%f21, %%f44, %%f24 \n\t" \
> + "fmul8x16 %%f0, %%f42, %%f0 \n\t" \
> + "fmul8x16 %%f16, %%f42, %%f16 \n\t" \
> + "fmul8x16 %%f3, %%f50, %%f2 \n\t" \
> + "fmul8x16 %%f19, %%f50, %%f18 \n\t" \
> + "fmul8x16 %%f5, %%f46, %%f4 \n\t" \
> + "fmul8x16 %%f21, %%f46, %%f20 \n\t" \
You could align all the operands, this would make the code more
readable.
Diego
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