fix dmabuf with openxr

src/overlays/screen.rs

@@ -241,7 +241,7 @@ impl OverlayRenderer for ScreenRenderer {
         self.capture.resume();
     }
     fn view(&mut self) -> Option<Arc<ImageView>> {
-        self.last_view.take()
+        self.last_view.clone()
     }
     fn extent(&self) -> [u32; 3] {
         self.extent.clone()
@@ -433,7 +433,7 @@ fn extent_from_res(res: (i32, i32)) -> [u32; 3] {
     // screens above a certain resolution will have severe aliasing
 
     // TODO make dynamic. maybe don't go above HMD resolution?
-    let w = res.0.min(2560) as u32;
+    let w = res.0.min(1920) as u32;
     let h = (res.1 as f32 / res.0 as f32 * w as f32) as u32;
     [w, h, 1]
 }