[Bug 792812] kmsallocator: add alignment when create fb

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=792812

--- Comment #4 from Haihua Hu <jared.hu at nxp.com> ---
(In reply to Víctor Manuel Jáquez Leal from comment #3)
> Review of attachment 367278 [details] [review]:
> 
> ::: sys/kms/gstkmsutils.c
> @@ +140,3 @@
> +    case DRM_FORMAT_UYVY:
> +    case DRM_FORMAT_YUYV:
> +    case DRM_FORMAT_YVYU:
> 
> If I understand correctly [1], DRM_FORMAT_YUYV, DRM_FORMAT_YVYU,
> DRM_FORMAT_UYVY, etc., have different horizontal and vertical subsampling,
> thus this looks wrong.
> 
> 
> 
> 
> 1.
> http://elixir.free-electrons.com/linux/latest/source/drivers/gpu/drm/
> drm_fourcc.c#L105

Oh, that's right, my linux kernel code is out of date. I need to correct it
according to the latest code

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