vdpau: implement PresentationQueueSetBackgroundColor

src/gallium/state_trackers/vdpau/presentation.c

@@ -109,10 +109,20 @@ VdpStatus
 vlVdpPresentationQueueSetBackgroundColor(VdpPresentationQueue presentation_queue,
                                          VdpColor *const background_color)
 {
+   vlVdpPresentationQueue *pq;
+
+   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Setting Background Color\n");
+
    if (!background_color)
       return VDP_STATUS_INVALID_POINTER;
 
-   return VDP_STATUS_NO_IMPLEMENTATION;
+   pq = vlGetDataHTAB(presentation_queue);
+   if (!pq)
+      return VDP_STATUS_INVALID_HANDLE;
+
+   pq->compositor->set_clear_color(pq->compositor, (float*)background_color);
+
+   return VDP_STATUS_OK;
 }
 
 VdpStatus