Re: [PATCH v2] ui/gtk-gl-area: Remove extra draw call in refresh

["Alex Bennée" <alex.bennee@linaro.org>]

dongwon.kim@intel.com writes:

> From: Dongwon Kim <dongwon.kim@intel.com>
>
> This partially reverts commit 77bf310084dad38b3a2badf01766c659056f1cf2
> which causes some guest display corruption when gtk-gl-area
> is used for GTK rendering (e.g. Wayland Compositor) possibly due to
> simulataneous accesses on the guest frame buffer by host compositor
> and the guest.
>

btw in future keep v2 etc bellow the --- so the tooling can prune it
when applying.

> v2: Added "Fixes" tag

Queued to virtio-gpu/next, thanks.

>
> Fixes: 77bf310084 ("ui/gtk: Draw guest frame at refresh cycle")
> Reported-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
> Reported-by: Alex Bennée <alex.bennee@linaro.org>
> Tested-by: Alex Bennée <alex.bennee@linaro.org>
> Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
> Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
> Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
> Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
> Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
> ---
>  ui/gtk-gl-area.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/ui/gtk-gl-area.c b/ui/gtk-gl-area.c
> index 2c9a0db425..9f7dc697f2 100644
> --- a/ui/gtk-gl-area.c
> +++ b/ui/gtk-gl-area.c
> @@ -129,7 +129,6 @@ void gd_gl_area_refresh(DisplayChangeListener *dcl)
>  
>      if (vc->gfx.guest_fb.dmabuf &&
>          qemu_dmabuf_get_draw_submitted(vc->gfx.guest_fb.dmabuf)) {
> -        gd_gl_area_draw(vc);
>          return;
>      }

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro