[PATCH] ui/gtk: Draw guest frame at refresh cycle

[PATCH] ui/gtk: Draw guest frame at refresh cycle

[dongwon.kim]

From: Dongwon Kim <dongwon.kim@intel.com>

Draw routine needs to be manually invoked in the next refresh
if there is a scanout blob from the guest. This is to prevent
a situation where there is a scheduled draw event but it won't
happen bacause the window is currently in inactive state
(minimized or tabified). If draw is not done for a long time,
gl_block timeout and/or fence timeout (on the guest) will happen
eventually.

Suggested-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
---
 ui/gtk-egl.c     | 1 +
 ui/gtk-gl-area.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/ui/gtk-egl.c b/ui/gtk-egl.c
index 3af5ac5bcf..75f6b9011a 100644
--- a/ui/gtk-egl.c
+++ b/ui/gtk-egl.c
@@ -150,6 +150,7 @@ void gd_egl_refresh(DisplayChangeListener *dcl)
             vc, vc->window ? vc->window : vc->gfx.drawing_area);
 
     if (vc->gfx.guest_fb.dmabuf && vc->gfx.guest_fb.dmabuf->draw_submitted) {
+        gd_egl_draw(vc);
         return;
     }
 
diff --git a/ui/gtk-gl-area.c b/ui/gtk-gl-area.c
index 52dcac161e..7b4ba37b78 100644
--- a/ui/gtk-gl-area.c
+++ b/ui/gtk-gl-area.c
@@ -126,6 +126,7 @@ void gd_gl_area_refresh(DisplayChangeListener *dcl)
     gd_update_monitor_refresh_rate(vc, vc->window ? vc->window : vc->gfx.drawing_area);
 
     if (vc->gfx.guest_fb.dmabuf && vc->gfx.guest_fb.dmabuf->draw_submitted) {
+        gd_egl_draw(vc);
         return;
     }
 
-- 
2.34.1