From 2fb4c47491758ec877d7be86e7d86fd75dc2d9e2 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf.pld@gmail.com>
Date: Tue, 3 Oct 2017 15:35:43 +0200
Subject: [PATCH] Remember to calibrate timer.

---
 client/TracyProfiler.cpp |  8 ++++----
 client/TracyProfiler.hpp | 15 ++++++++++++++-
 2 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/client/TracyProfiler.cpp b/client/TracyProfiler.cpp
index b18f553a..44e93404 100755
--- a/client/TracyProfiler.cpp
+++ b/client/TracyProfiler.cpp
@@ -236,16 +236,16 @@ bool Profiler::HandleServerQuery()
 
 void Profiler::CalibrateTimer()
 {
-#if defined _MSC_VER || defined __CYGWIN__
-    unsigned int ui;
+#ifdef TRACY_RDTSCP_SUPPORTED
+    int8_t cpu;
     std::atomic_signal_fence( std::memory_order_acq_rel );
     const auto t0 = std::chrono::high_resolution_clock::now();
-    const auto r0 = __rdtscp( &ui );
+    const auto r0 = tracy_rdtscp( cpu );
     std::atomic_signal_fence( std::memory_order_acq_rel );
     std::this_thread::sleep_for( std::chrono::milliseconds( 100 ) );
     std::atomic_signal_fence( std::memory_order_acq_rel );
     const auto t1 = std::chrono::high_resolution_clock::now();
-    const auto r1 = __rdtscp( &ui );
+    const auto r1 = tracy_rdtscp( cpu );
     std::atomic_signal_fence( std::memory_order_acq_rel );
 
     const auto dt = std::chrono::duration_cast<std::chrono::nanoseconds>( t1 - t0 ).count();
diff --git a/client/TracyProfiler.hpp b/client/TracyProfiler.hpp
index fa8769d0..b5bb5837 100755
--- a/client/TracyProfiler.hpp
+++ b/client/TracyProfiler.hpp
@@ -14,6 +14,10 @@
 #  include <intrin.h>
 #endif
 
+#if defined _MSC_VER || defined __CYGWIN__ || defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64
+#  define TRACY_RDTSCP_SUPPORTED
+#endif
+
 namespace tracy
 {
 
@@ -39,7 +43,8 @@ public:
     Profiler();
     ~Profiler();
 
-    static tracy_force_inline int64_t GetTime( int8_t& cpu )
+#ifdef TRACY_RDTSCP_SUPPORTED
+    static tracy_force_inline int64_t tracy_rdtscp( int8_t& cpu )
     {
 #if defined _MSC_VER || defined __CYGWIN__
         unsigned int ui;
@@ -52,6 +57,14 @@ public:
         asm volatile ( "rdtscp" : "=a" (eax), "=d" (edx), "=c" (ui) :: );
         cpu = (int8_t)ui;
         return ( edx << 32 ) + eax;
+#endif
+    }
+#endif
+
+    static tracy_force_inline int64_t GetTime( int8_t& cpu )
+    {
+#ifdef TRACY_RDTSCP_SUPPORTED
+        return tracy_rdtscp( cpu );
 #else
         cpu = -1;
         return std::chrono::duration_cast<std::chrono::nanoseconds>( std::chrono::high_resolution_clock::now().time_since_epoch() ).count();