Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/examples/common/stopwatch.h

@@ -0,0 +1,90 @@
+//
+//   Copyright 2013 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#ifndef STOPWATCH_H
+#define STOPWATCH_H
+
+#if (_WIN32)
+    #include <windows.h>
+#else
+    #include <sys/types.h>
+    #include <sys/time.h>
+    #include <sys/resource.h>
+#endif
+
+class Stopwatch {
+
+public:
+
+#ifndef _WIN32
+    Stopwatch() : _totalElapsed(0) { }
+
+    void Start() {
+        struct timeval l_rtime;
+        gettimeofday(&l_rtime,0);
+        _elapsed = (double)l_rtime.tv_sec + (double)l_rtime.tv_usec/1000000.0;
+    }
+
+    void Stop() {
+        struct timeval l_rtime;
+
+        gettimeofday(&l_rtime,0);
+        _elapsed = ((double)l_rtime.tv_sec + (double)l_rtime.tv_usec/1000000.0)
+                 - _elapsed;
+        _totalElapsed += _elapsed;
+    }
+
+    double GetElapsed() const {
+        return _elapsed;
+    }
+
+    double GetTotalElapsed() const {
+        return _totalElapsed;
+    }
+#else
+    Stopwatch() : _totalElapsed(0) {
+        QueryPerformanceFrequency(&_frequency);
+    }
+
+    void Start()
+    {
+        QueryPerformanceCounter(&_time);
+    }
+
+    void Stop()
+    {
+        LARGE_INTEGER currentTime;
+        QueryPerformanceCounter(&currentTime);
+        _elapsed = currentTime.QuadPart - _time.QuadPart;
+        _totalElapsed+=_elapsed;
+    }
+
+    double GetElapsed() const {
+        return (double) _elapsed / _frequency.QuadPart;
+    }
+
+    double GetTotalElapsed() const {
+        return (double) _totalElapsed / _frequency.QuadPart;
+    }
+#endif
+
+private:
+
+#ifndef _WIN32
+    double _elapsed;
+    double _totalElapsed;
+#else
+    LARGE_INTEGER _time;
+    LARGE_INTEGER _frequency;
+    __int64 _elapsed;
+    __int64 _totalElapsed;
+#endif
+
+};
+
+#endif /* STOPWATCH_H */
+