[FFmpeg-devel] [PATCH v2] swscale/ppc: disable YUV2RGB AltiVec acceleration

[Rémi Denis-Courmont]

Le sunnuntaina 24. marraskuuta 2024, 21.01.48 EET Sean McGovern a écrit :
> The FATE test 'checkasm-sw_yuv2rgb' currently fails on this platform,
> in both little- and big-endian configurations.
> 
> Disable it by default.
> Add '-DSWS_USE_ALTIVEC_YUV2RGB' to CPPFLAGS to re-enable it.
> ---
> v2: rebased over top of the recent swscale changes from Nik Haas
> ---
>  libswscale/ppc/yuv2rgb_altivec.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/libswscale/ppc/yuv2rgb_altivec.c
> b/libswscale/ppc/yuv2rgb_altivec.c index 57574c4ab3..f44733a880 100644
> --- a/libswscale/ppc/yuv2rgb_altivec.c
> +++ b/libswscale/ppc/yuv2rgb_altivec.c
> @@ -558,6 +558,7 @@ av_cold SwsFunc ff_yuv2rgb_init_ppc(SwsInternal *c)
>          if ((c->opts.src_h & 0x1) != 0)
>              return NULL;
> 
> +#ifdef SWS_USE_ALTIVEC_YUV2RGB

TBH, I find this somwhat misleading as opposed to be a plain 'if 0' with a 
rationale comment.


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