From 28f48f9fdcfbe5d542f26ee58ffec19ee6df1c40 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Fri, 16 Jun 2023 16:05:38 +0200
Subject: [PATCH] [dxgi] Initialize output refresh counts with non-zero values

Matches Windows behaviour.
---
 src/dxgi/dxgi_output.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/dxgi/dxgi_output.cpp b/src/dxgi/dxgi_output.cpp
index fd44f29f..f948c7a8 100644
--- a/src/dxgi/dxgi_output.cpp
+++ b/src/dxgi/dxgi_output.cpp
@@ -672,7 +672,17 @@ namespace dxvk {
     // blank one to get something sane here.
     NormalizeDisplayMetadata(m_monitorInfo->DefaultColorSpace() != DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709, m_metadata);
 
+    auto refreshPeriod = computeRefreshPeriod(
+      activeWsiMode.refreshRate.numerator,
+      activeWsiMode.refreshRate.denominator);
+
     monitorData.FrameStats.SyncQPCTime.QuadPart = dxvk::high_resolution_clock::get_counter();
+    monitorData.FrameStats.SyncRefreshCount = computeRefreshCount(
+      dxvk::high_resolution_clock::time_point(),
+      dxvk::high_resolution_clock::get_time_from_counter(monitorData.FrameStats.SyncQPCTime.QuadPart),
+      refreshPeriod);
+
+    monitorData.FrameStats.PresentRefreshCount = monitorData.FrameStats.SyncRefreshCount;
     monitorData.GammaCurve.Scale = { 1.0f, 1.0f, 1.0f };
     monitorData.GammaCurve.Offset = { 0.0f, 0.0f, 0.0f };
     monitorData.LastMode = ConvertDisplayMode(activeWsiMode);