OpenXR: Fix VD fix not working after recent VD updates

src/mods/vr/runtimes/OpenXR.cpp

@@ -1633,7 +1633,7 @@ XrResult OpenXR::end_frame(const std::vector<XrCompositionLayerBaseHeader*>& qua
     // Dummy projection layers for Virtual Desktop. If we don't do this, timewarp does not work correctly on VD.
     // the reasoning from ggodin (VD dev) is that VD composites all layers using the top layer's pose (apparently)
     // I am actually not sure why this fixes the issue, but it does. and even makes the SteamVR overlay work completely fine.
-    const auto should_push_dummy = this->push_dummy_projection == true && !pipelined_stage_views.empty();
+    const auto should_push_dummy = this->push_dummy_projection == true && !pipelined_stage_views.empty() && this->ever_submitted == true;
 
     XrCompositionLayerProjection dummy_projection_layer{XR_TYPE_COMPOSITION_LAYER_PROJECTION};
     std::array<XrCompositionLayerProjectionView, 2> dummy_projection_layer_views{};
@@ -1790,6 +1790,8 @@ XrResult OpenXR::end_frame(const std::vector<XrCompositionLayerBaseHeader*>& qua
              spdlog::error("[VR] xrEndFrame time: submitted: {} vs frame_state: {}", frame_end_info.displayTime, this->frame_state.predictedDisplayTime);
              spdlog::error("[VR] display time diff: {}", frame_end_info.displayTime - this->frame_state.predictedDisplayTime);
         }
+    } else {
+        this->ever_submitted = true;
     }
 
     this->frame_began = false;

src/mods/vr/runtimes/OpenXR.hpp

@@ -301,7 +301,8 @@ struct OpenXR final : public VRRuntime {
 
     const ModSlider::Ptr resolution_scale{ ModSlider::create("OpenXR_ResolutionScale", 0.1f, 5.0f, 1.0f) };
     bool push_dummy_projection{ false };
-
+    bool ever_submitted{false};
+
     Mod::ValueList options{
         *resolution_scale,
     };