Fix activate deactivate loop

OptiScaler/framegen/IFGFeature.h

@@ -68,8 +68,8 @@ class IFGFeature
     std::optional<UINT> _interpolationTop[BUFFER_COUNT];
     UINT _reset[BUFFER_COUNT] = {};
 
-    UINT64 _frameCount = 0;
-    UINT64 _lastDispatchedFrame = -1;
+    UINT64 _frameCount = 1;
+    UINT64 _lastDispatchedFrame = 0;
     UINT64 _willDispatchFrame = 0;
 
     bool _isActive = false;

OptiScaler/framegen/ffx/FSRFG_Dx12.cpp

@@ -397,7 +397,7 @@ void* FSRFG_Dx12::SwapchainContext()
 
 void FSRFG_Dx12::DestroyFGContext()
 {
-    _frameCount = 0;
+    _frameCount = 1;
     _lastDispatchedFrame = 0;
     _willDispatchFrame = 0;
 
@@ -692,6 +692,8 @@ void FSRFG_Dx12::Deactivate()
         if (result == FFX_API_RETURN_OK)
             _isActive = false;
 
+        _lastDispatchedFrame = 0;
+
         LOG_INFO("D3D12_Configure Enabled: false, result: {} ({})", magic_enum::enum_name((FfxApiReturnCodes) result),
                  (UINT) result);
     }

OptiScaler/framegen/xefg/XeFG_Dx12.cpp

@@ -425,6 +425,8 @@ void XeFG_Dx12::Deactivate()
         if (result == XEFG_SWAPCHAIN_RESULT_SUCCESS)
             _isActive = false;
 
+        _lastDispatchedFrame = 0;
+
         LOG_INFO("SetEnabled: false, result: {} ({})", magic_enum::enum_name(result), (UINT) result);
     }
 }