D3D12: report fake occlusion results while emulated draws are suppressed

cmake/rexglue_helpers.cmake

@@ -74,7 +74,13 @@ function(rexglue_configure_target target_name)
         REXGLUE_BUILD_CONFIG="$<CONFIG>")
 
     if(TARGET imgui::imgui)
-        target_link_libraries(${target_name} PRIVATE imgui::imgui)
+        # Headers only. The ImGui implementation lives inside the runtime
+        # library (which exports it); linking the object library here would
+        # give the host its own second copy of ImGui with a separate,
+        # never-initialized context (GImGui == nullptr), so any host-side
+        # ImGuiDialog subclass would crash on its first ImGui:: call.
+        target_include_directories(${target_name} PRIVATE
+            $<TARGET_PROPERTY:imgui::imgui,INTERFACE_INCLUDE_DIRECTORIES>)
     endif()
     target_include_directories(${target_name} PRIVATE
         ${CMAKE_CURRENT_BINARY_DIR}/rexglue-sdk/include)

src/graphics/d3d12/command_processor.cpp

@@ -435,6 +435,27 @@ bool D3D12CommandProcessor::ExecutePacketType3_EVENT_WRITE_ZPD(memory::RingBuffe
     return write_fake_result(REXCVAR_GET(skate3_ultrawide_fake_occlusion_sample_count));
   }
 
+  // Native guest-output renderer active: the framebuffer-sized draws between
+  // query begin/end are suppressed, so a real host occlusion query reports 0
+  // samples. The game gates world rendering on these results; event-ad
+  // placements poll their poster quads' visibility and stop submitting the
+  // overlay geometry entirely (the native frame then shows the default poster
+  // art where the emulated frame shows the current ad). Report the fake
+  // positive count instead: the suppressed draws are exactly the ones the
+  // native renderer is drawing in their place.
+  if (ShouldSuppressEmulatedDraws()) {
+    if (active_occlusion_query_.valid) {
+      uint32_t host_index = active_occlusion_query_.host_index;
+      active_occlusion_query_ = {};
+      if (occlusion_query_heap_ && BeginSubmission(true)) {
+        deferred_command_list_.D3DEndQuery(occlusion_query_heap_.Get(), D3D12_QUERY_TYPE_OCCLUSION,
+                                           host_index);
+        EndSubmission(false);
+      }
+    }
+    return write_fake_result(REXCVAR_GET(query_occlusion_fake_sample_count));
+  }
+
   if (!REXCVAR_GET(occlusion_query_enable) || !occlusion_query_resources_available_) {
     return CommandProcessor::ExecutePacketType3_EVENT_WRITE_ZPD(reader, packet, count);
   }