[Mesa-stable] [Mesa-dev] [PATCH 5/7] i965/screen: Don't advertise support for RG formats

[Daniel Stone]

Sorry, but as written this will regress ability to import NV12 images as
separately-addressed planes with shader conversion to RGB; Kodi, Mutter and
Weston all use this.

On Wed, 6 Jun 2018, 6:48 pm Jason Ekstrand, <jason at jlekstrand.net> wrote:

> Cc: mesa-stable at lists.freedesktop.org
> ---
>  src/mesa/drivers/dri/i965/intel_screen.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/src/mesa/drivers/dri/i965/intel_screen.c
> b/src/mesa/drivers/dri/i965/intel_screen.c
> index 5f0eeb41779..f681b221e7b 100644
> --- a/src/mesa/drivers/dri/i965/intel_screen.c
> +++ b/src/mesa/drivers/dri/i965/intel_screen.c
> @@ -1269,6 +1269,18 @@ intel_image_format_is_supported(const struct
> intel_image_format *fmt)
>         fmt->fourcc == __DRI_IMAGE_FOURCC_SABGR8888)
>        return false;
>
> +   /* The dri_interface.h file says:
> +    *
> +    *    "R8, GR88 and NONE should not be used with createImageFromName or
> +    *    createImage, and are returned by query from sub images created
> with
> +    *    createImageFromNames (NONE, see above) and fromPlane (R8 &
> GR88)."
> +    *
> +    * Let's not advertise support for R or RG formats.
> +    */
> +   if (fmt->components == __DRI_IMAGE_COMPONENTS_R ||
> +       fmt->components == __DRI_IMAGE_COMPONENTS_RG)
> +      return false;
> +
>     return true;
>  }
>
> --
> 2.17.1
>
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