QPC usage replaced by std::chrono (and fixed timers)

src/utils/xrLC_Light/LightThread.cpp

@@ -24,7 +24,9 @@ void LightThread::Execute()
             gl_data.slots_data.set_slot_calculated(_x, _z);
 
             thProgress = float(_z - Nstart) / float(Nend - Nstart);
-            thPerformance = float(double(t_count) / double(t_time * CPU::clk_to_seconds)) / 1000.f;
+
+            const auto secs = std::chrono::duration_cast<std::chrono::seconds>(t_time).count();
+            thPerformance = float(double(t_count) / double(secs)) / 1000.f;
         }
     }
 }

src/utils/xrLC_Light/detail_slot_calculate.cpp

@@ -83,8 +83,8 @@ class base_color
 const int LIGHT_Count = 7;
 
 //-----------------------------------------------------------------
-thread_local u64 t_start = 0;
-thread_local u64 t_time = 0;
+thread_local Time t_start;
+thread_local Duration t_time;
 thread_local u64 t_count = 0;
 
 IC bool RayPick(CDB::COLLIDER& DB, Fvector& P, Fvector& D, float r, R_Light& L)
@@ -99,9 +99,9 @@ IC bool RayPick(CDB::COLLIDER& DB, Fvector& P, Fvector& D, float r, R_Light& L)
     }
 
     // 2. Polygon doesn't pick - real database query
-    t_start = CPU::GetCLK();
+    t_start = Clock::now();
     DB.ray_query(&gl_data.RCAST_Model, P, D, r);
-    t_time += CPU::GetCLK() - t_start - CPU::clk_overhead;
+    t_time += Clock::now() - t_start;
     t_count += 1;
 
     // 3. Analyze

src/utils/xrLC_Light/detail_slot_calculate.h

@@ -7,6 +7,10 @@
 #ifndef DETAIL_SLOT_CALCULATE_H_INCLUDED
 #define DETAIL_SLOT_CALCULATE_H_INCLUDED
 
+using Clock = std::chrono::high_resolution_clock;
+using Time = Clock::time_point;
+using Duration = Clock::duration;
+
 using DWORDVec = xr_vector<u32>;
 
 namespace CDB
@@ -16,7 +20,7 @@ class COLLIDER;
 class base_lighting;
 struct DetailSlot;
 
-extern thread_local u64 t_time;
+extern thread_local Duration t_time;
 extern thread_local u64 t_count;
 
 bool detail_slot_calculate(

src/xrCore/FTimer.cpp

@@ -3,22 +3,15 @@
 
 XRCORE_API bool g_bEnableStatGather = false;
 
-CStatTimer::CStatTimer()
-{
-    accum = 0;
-    result = 0.f;
-    count = 0;
-}
-
 void CStatTimer::FrameStart()
 {
-    accum = 0;
+    accum = Duration();
     count = 0;
 }
 
 void CStatTimer::FrameEnd()
 {
-    const float time = 1000.f * float(double(accum) / double(CPU::qpc_freq));
+    const float time = GetElapsed_sec();
     if (time > result)
         result = time;
     else

src/xrCore/FTimer.h

@@ -26,40 +26,48 @@ extern XRCORE_API pauseMngr& g_pauseMngr();
 
 class XRCORE_API CTimerBase
 {
+public:
+    using Clock = std::chrono::high_resolution_clock;
+    using Time = std::chrono::time_point<Clock>;
+    using Duration = Time::duration;
+
 protected:
-    u64 startTime;
-    u64 pauseDuration;
-    u64 pauseAccum;
+    Time startTime;
+    Duration pauseDuration;
+    Duration pauseAccum;
     bool paused;
 
 public:
-    constexpr CTimerBase() noexcept : startTime(0), pauseDuration(0), pauseAccum(0), paused(false) {}
+    constexpr CTimerBase() noexcept : startTime(), pauseDuration(), pauseAccum(), paused(false) {}
 
     ICF void Start()
     {
         if (paused)
             return;
-        startTime = CPU::QPC() - pauseAccum;
+        startTime = Now() - pauseAccum;
     }
-    ICF u64 GetElapsed_ticks() const
+
+    virtual Duration getElapsedTime() const
     {
         if (paused)
             return pauseDuration;
-        else
-            return CPU::QPC() - startTime - CPU::qpc_overhead - pauseAccum;
+        return Now() - startTime - pauseAccum;
+    }
+
+    u64 GetElapsed_ms() const
+    {
+        using namespace std::chrono;
+        return duration_cast<milliseconds>(getElapsedTime()).count();
     }
-    IC u32 GetElapsed_ms() const { return u32(GetElapsed_ticks() * u64(1000) / CPU::qpc_freq); }
+
     IC float GetElapsed_sec() const
     {
-#ifndef _EDITOR
-        FPU::m64r();
-#endif
-        float _result = float(double(GetElapsed_ticks()) / double(CPU::qpc_freq));
-#ifndef _EDITOR
-        FPU::m24r();
-#endif
-        return _result;
+        using namespace std::chrono;
+        return duration_cast<duration<float>>(getElapsedTime()).count();
     }
+
+    Time Now() const { return Clock::now(); }
+
     IC void Dump() const { Msg("* Elapsed time (sec): %f", GetElapsed_sec()); }
 };
 
@@ -68,74 +76,49 @@ class XRCORE_API CTimer : public CTimerBase
     using inherited = CTimerBase;
 
     float m_time_factor;
-    u64 m_real_ticks;
-    u64 m_ticks;
+    Duration realTime;
+    Duration time;
 
-    IC u64 GetElapsed_ticks(const u64& current_ticks) const
+    inline Duration getElapsedTime(const Duration& current) const
     {
-        u64 delta = current_ticks - m_real_ticks;
-        double delta_d = (double)delta;
-        double time_factor_d = time_factor();
-        double time = delta_d * time_factor_d + .5;
-        u64 result = (u64)time;
-        return (m_ticks + result);
+        const auto delta = current - realTime;
+        const double deltaD = double(delta.count());
+        const double time = deltaD * m_time_factor + .5;
+        const auto result = u64(time);
+        return Duration(this->time.count() + result);
     }
 
 public:
-    constexpr CTimer() noexcept : m_time_factor(1.f), m_real_ticks(0), m_ticks(0) {}
-    ICF void Start() noexcept
+    constexpr CTimer() noexcept : m_time_factor(1.f), realTime(0), time(0) {}
+
+    void Start() noexcept
     {
         if (paused)
             return;
 
+        realTime = std::chrono::nanoseconds(0);
+        time = std::chrono::nanoseconds(0);
         inherited::Start();
-        m_real_ticks = 0;
-        m_ticks = 0;
     }
 
     float time_factor() const noexcept { return m_time_factor; }
     void time_factor(const float time_factor) noexcept
     {
-        u64 current = inherited::GetElapsed_ticks();
-        m_ticks = GetElapsed_ticks(current);
-        m_real_ticks = current;
+        const Duration current = inherited::getElapsedTime();
+        time = getElapsedTime(current);
+        realTime = current;
         m_time_factor = time_factor;
     }
 
-    u64 GetElapsed_ticks() const
-    {
-#ifndef _EDITOR
-        FPU::m64r();
-#endif // _EDITOR
-
-        u64 result = GetElapsed_ticks(inherited::GetElapsed_ticks());
-
-#ifndef _EDITOR
-        FPU::m24r();
-#endif // _EDITOR
-
-        return (result);
-    }
-
-    IC u32 GetElapsed_ms() const { return (u32(GetElapsed_ticks() * u64(1000) / CPU::qpc_freq)); }
-    IC float GetElapsed_sec() const
+    virtual Duration getElapsedTime() const
     {
-#ifndef _EDITOR
-        FPU::m64r();
-#endif
-        float result = float(double(GetElapsed_ticks()) / double(CPU::qpc_freq));
-#ifndef _EDITOR
-        FPU::m24r();
-#endif
-        return (result);
+        return getElapsedTime(inherited::getElapsedTime());
     }
-
-    void Dump() const { Msg("* Elapsed time (sec): %f", GetElapsed_sec()); }
 };
 
 class XRCORE_API CTimer_paused_ex : public CTimer
 {
-    u64 save_clock;
+    Time save_clock;
 
 public:
     CTimer_paused_ex() noexcept : save_clock() {}
@@ -146,15 +129,15 @@ class XRCORE_API CTimer_paused_ex : public CTimer
         if (paused == b)
             return;
 
-        u64 _current = CPU::QPC() - CPU::qpc_overhead;
+        const auto current = Now();
         if (b)
         {
-            save_clock = _current;
-            pauseDuration = CTimerBase::GetElapsed_ticks();
+            save_clock = current;
+            pauseDuration = CTimerBase::getElapsedTime();
         }
         else
         {
-            pauseAccum += _current - save_clock;
+            pauseAccum += current - save_clock;
         }
         paused = b;
     }
@@ -170,13 +153,15 @@ class XRCORE_API CTimer_paused : public CTimer_paused_ex
 extern XRCORE_API bool g_bEnableStatGather;
 class XRCORE_API CStatTimer
 {
+    using Duration = CTimerBase::Duration;
+
 public:
     CTimer T;
-    u64 accum;
+    Duration accum;
     float result;
     u32 count;
 
-    CStatTimer();
+    CStatTimer() : T(), accum(), result(.0f), count(0) {}
     void FrameStart();
     void FrameEnd();
 
@@ -192,20 +177,19 @@ class XRCORE_API CStatTimer
     {
         if (!g_bEnableStatGather)
             return;
-        accum += T.GetElapsed_ticks();
+        accum += T.getElapsedTime();
     }
 
-    ICF u64 GetElapsed_ticks() const { return accum; }
-    IC u32 GetElapsed_ms() const { return u32(GetElapsed_ticks() * u64(1000) / CPU::qpc_freq); }
-    IC float GetElapsed_sec() const
+    Duration getElapsedTime() const { return accum; }
+    u64 GetElapsed_ms() const
+    {
+        using namespace std::chrono;
+        return duration_cast<milliseconds>(getElapsedTime()).count();
+    }
+
+    float GetElapsed_sec() const
     {
-#ifndef _EDITOR
-        FPU::m64r();
-#endif
-        float _result = float(double(GetElapsed_ticks()) / double(CPU::qpc_freq));
-#ifndef _EDITOR
-        FPU::m24r();
-#endif
-        return _result;
+        using namespace std::chrono;
+        return duration_cast<duration<float>>(getElapsedTime()).count();
     }
 };