From 5e5bf928a5e6796ee72ee42fefffa901b882ca4d Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf.pld@gmail.com>
Date: Tue, 7 Jul 2020 21:24:44 +0200
Subject: [PATCH] Add QPC frequency query to API.

---
 client/TracyProfiler.cpp | 11 +++++++++++
 client/TracyProfiler.hpp |  1 +
 2 files changed, 12 insertions(+)

diff --git a/client/TracyProfiler.cpp b/client/TracyProfiler.cpp
index 8d2da1a8..8c329ec0 100644
--- a/client/TracyProfiler.cpp
+++ b/client/TracyProfiler.cpp
@@ -873,6 +873,17 @@ static Thread* s_sysTraceThread = nullptr;
 
 TRACY_API bool ProfilerAvailable() { return s_instance != nullptr; }
 
+TRACY_API int64_t GetFrequencyQpc()
+{
+#if defined _WIN32 || defined __CYGWIN__
+    LARGE_INTEGER t;
+    QueryPerformanceFrequency( &t );
+    return t.QuadPart;
+#else
+    return 0;
+#endif
+}
+
 #ifdef TRACY_DELAYED_INIT
 struct ThreadNameData;
 TRACY_API moodycamel::ConcurrentQueue<QueueItem>& GetQueue();
diff --git a/client/TracyProfiler.hpp b/client/TracyProfiler.hpp
index 1507418f..b48fd680 100644
--- a/client/TracyProfiler.hpp
+++ b/client/TracyProfiler.hpp
@@ -60,6 +60,7 @@ TRACY_API GpuCtxWrapper& GetGpuCtx();
 TRACY_API uint64_t GetThreadHandle();
 TRACY_API void InitRPMallocThread();
 TRACY_API bool ProfilerAvailable();
+TRACY_API int64_t GetFrequencyQpc();
 
 struct SourceLocationData
 {