added get milliseconds

OptiScaler/Util.cpp

@@ -51,6 +51,26 @@ std::optional<std::filesystem::path> Util::NvngxPath()
 	return result;
 }
 
+double Util::MillisecondsNow()
+{
+	static LARGE_INTEGER s_frequency;
+	static BOOL s_use_qpc = QueryPerformanceFrequency(&s_frequency);
+	double milliseconds = 0;
+
+	if (s_use_qpc)
+	{
+		LARGE_INTEGER now;
+		QueryPerformanceCounter(&now);
+		milliseconds = double(1000.0 * now.QuadPart) / s_frequency.QuadPart;
+	}
+	else
+	{
+		milliseconds = double(GetTickCount64());
+	}
+
+	return milliseconds;
+}
+
 std::filesystem::path Util::ExePath()
 {
 	static std::filesystem::path exe;

OptiScaler/Util.h

@@ -6,6 +6,8 @@ namespace Util
 	std::filesystem::path ExePath();
 	std::filesystem::path DllPath();
 	std::optional<std::filesystem::path> NvngxPath();
+	double MillisecondsNow();
+
 
 	HWND GetProcessWindow();
 };