Preliminary support for realtime clock (#2772)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Initial support for realtime clock.

* Add realtime-clock render feature where seems appropriate.

* Fixes to make NVAPI compile properly.
Change realtime-clock.slang check to use maths that can't overflow.

1 files changed, 5 insertions, 0 deletions

diff --git a/tools/gfx/d3d11/d3d11-device.cpp b/tools/gfx/d3d11/d3d11-device.cpp
index e32bdf7ed..cc2eda089 100644
--- a/tools/gfx/d3d11/d3d11-device.cpp
+++ b/tools/gfx/d3d11/d3d11-device.cpp
@@ -196,6 +196,11 @@ SlangResult DeviceImpl::initialize(const Desc& desc)
             m_features.add("atomic-float");
         }
 
+        // If we have NVAPI well assume we have realtime clock
+        {
+            m_features.add("realtime-clock");
+        }
+
         m_nvapi = true;
 #endif
     }