don't set engine to vulkan if already set

src/overlay.cpp

@@ -19,8 +19,8 @@ struct benchmark_stats benchmark;
 struct fps_limit fps_limit_stats {};
 ImVec2 real_font_size;
 std::vector<logData> graph_data;
-const char* engines[] = {"OpenGL", "VULKAN", "DXVK", "VKD3D", "DAMAVAND", "ZINK", "WINED3D", "Feral3D"};
-EngineTypes engine;
+const char* engines[] = {"Unknown", "OpenGL", "VULKAN", "DXVK", "VKD3D", "DAMAVAND", "ZINK", "WINED3D", "Feral3D"};
+EngineTypes engine = Unknown;
 
 void update_hw_info(struct swapchain_stats& sw_stats, struct overlay_params& params, uint32_t vendorID)
 {

src/overlay.h

@@ -80,6 +80,8 @@ struct LOAD_DATA {
 
 enum EngineTypes
 {
+   Unknown,
+   
    OpenGL,
    Vulkan,
 

src/vulkan.cpp

@@ -2149,23 +2149,25 @@ static VkResult overlay_CreateInstance(
          engineVersion = to_string(VK_VERSION_MAJOR(engineVer)) + "." + to_string(VK_VERSION_MINOR(engineVer)) + "." + to_string(VK_VERSION_PATCH(engineVer));
       }
 
-      if (engineName == "DXVK")
-         engine = DXVK;
+      if (engine < 1){
+         if (engineName == "DXVK")
+            engine = DXVK;
 
-      else if (engineName == "vkd3d")
-         engine = VKD3D;
+         else if (engineName == "vkd3d")
+            engine = VKD3D;
 
-      else if(engineName == "mesa zink")
-         engine = ZINK;
+         else if(engineName == "mesa zink")
+            engine = ZINK;
 
-      else if (engineName == "Damavand")
-         engine = DAMAVAND;
+         else if (engineName == "Damavand")
+            engine = DAMAVAND;
 
-      else if (engineName == "Feral3D")
-         engine = Feral3D;
+         else if (engineName == "Feral3D")
+            engine = Feral3D;
 
-      else
-         engine = Vulkan;
+         else
+            engine = Vulkan;
+      }
    }
 
    assert(chain_info->u.pLayerInfo);