[Mesa-dev] [PATCH] egl/wayland: Set __DRI_IMAGE_USE_SCANOUT for shared buffers

[Axel Davy]

There was this other version 
http://lists.freedesktop.org/archives/mesa-dev/2015-October/097917.html

Reviewed-by: Axel Davy <axel.davy at ens.fr>

On 27/01/2016 10:34, Michel Dänzer wrote:
> From: Michel Dänzer <michel.daenzer at amd.com>
>
> The compositor may have the hardware scan out directly from the buffers
> sent by the client, so we must make sure the buffers we create are
> suitable for scanout.
>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93866
> Cc: 11.0 11.1 <mesa-stable at lists.freedesktop.org>
> Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
> ---
>   src/egl/drivers/dri2/platform_wayland.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
> index c2438f7..7ee5e21 100644
> --- a/src/egl/drivers/dri2/platform_wayland.c
> +++ b/src/egl/drivers/dri2/platform_wayland.c
> @@ -360,6 +360,7 @@ get_back_bo(struct dri2_egl_surface *dri2_surf)
>                                         dri2_surf->base.Height,
>                                         dri_image_format,
>                                         __DRI_IMAGE_USE_SHARE |
> +                                      __DRI_IMAGE_USE_SCANOUT |
>                                         __DRI_IMAGE_USE_LINEAR,
>                                         NULL);
>         if (dri2_surf->back->linear_copy == NULL)
> @@ -372,8 +373,9 @@ get_back_bo(struct dri2_egl_surface *dri2_surf)
>                                         dri2_surf->base.Width,
>                                         dri2_surf->base.Height,
>                                         dri_image_format,
> -                                      dri2_dpy->is_different_gpu ?
> -                                         0 : __DRI_IMAGE_USE_SHARE,
> +                                      dri2_dpy->is_different_gpu ? 0 :
> +                                      __DRI_IMAGE_USE_SHARE |
> +                                      __DRI_IMAGE_USE_SCANOUT,
>                                         NULL);
>         dri2_surf->back->age = 0;
>      }