Vulkan: enable extensions required by DLSS

Author: TheMostDiligent

Graphics/GraphicsEngineVulkan/src/EngineFactoryVk.cpp

@@ -1284,6 +1284,28 @@ void EngineFactoryVkImpl::CreateDeviceAndContextsVk(const EngineVkCreateInfo& En
                 LOG_ERROR_MESSAGE("Can not enable extended device features when VK_KHR_get_physical_device_properties2 extension is not supported by device");
         }
 
+        // Extensions required by DLSS
+        {
+            constexpr std::array<const char*, 3> DLSSReqExts = {
+                VK_KHR_PUSH_DESCRIPTOR_EXTENSION_NAME,
+                VK_NVX_BINARY_IMPORT_EXTENSION_NAME,
+                VK_NVX_IMAGE_VIEW_HANDLE_EXTENSION_NAME,
+            };
+            bool DLSSReqExtsSupported = true;
+            for (const char* Ext : DLSSReqExts)
+            {
+                if (!PhysicalDevice->IsExtensionSupported(Ext))
+                {
+                    DLSSReqExtsSupported = false;
+                    break;
+                }
+            }
+            if (DLSSReqExtsSupported)
+            {
+                DeviceExtensions.insert(DeviceExtensions.end(), DLSSReqExts.begin(), DLSSReqExts.end());
+            }
+        }
+
         ASSERT_SIZEOF(DeviceFeatures, 48, "Did you add a new feature to DeviceFeatures? Please handle its status here.");
 
         for (Uint32 i = 0; i < EngineCI.DeviceExtensionCount; ++i)