1 files changed, 63 insertions, 0 deletions
diff --git a/Runtime/GfxDevice/opengl/TimerQueryGL.h b/Runtime/GfxDevice/opengl/TimerQueryGL.h
new file mode 100644
index 0000000..eb95f56
--- /dev/null
+++ b/Runtime/GfxDevice/opengl/TimerQueryGL.h
@@ -0,0 +1,63 @@
+#ifndef TIMERQUERYGL_H
+#define TIMERQUERYGL_H
+
+#if ENABLE_PROFILER
+
+#include "Runtime/GfxDevice/GfxTimerQuery.h"
+
+class TimerQueryGL : public GfxTimerQuery
+{
+public:
+	TimerQueryGL();
+	~TimerQueryGL();
+
+	virtual void				Measure();
+	void						MeasureBegin();
+	virtual ProfileTimeFormat	GetElapsed(UInt32 flags);
+
+	bool	PollResult(UInt64& prevTime, bool wait);
+
+private:
+	GLuint m_Query;
+	ProfileTimeFormat m_Time;
+};
+
+class TimerQueriesGL
+{
+public:
+	TimerQueriesGL();
+
+	GLuint		AllocateQuery();
+	void		ReleaseQuery(GLuint query);
+
+	void		BeginTimerQueries();
+	void		EndTimerQueries();
+
+	bool		IsActive() const { return m_Active; }
+
+	void		AddActiveTimerQuery(TimerQueryGL* query);
+	void		PollTimerQueries(bool wait);
+	bool		PollNextTimerQuery(bool wait);
+
+private:
+	enum
+	{
+		kStartTimeQueryCount = 3,
+		kMaxFreeQueries = 128
+	};
+
+	GLuint					m_FreeQueries[kMaxFreeQueries];
+	int						m_NumFreeQueries;
+	UInt64					m_LastQueryTime;
+	TimerQueryGL*			m_StartTimeQueries[kStartTimeQueryCount];
+	int						m_StartTimeQueryIndex;
+	typedef List<TimerQueryGL> TimerQueryList;
+	TimerQueryList			m_ActiveTimerQueries;
+	TimerQueryList			m_PolledTimerQueries;
+	bool					m_Active;
+};
+
+extern TimerQueriesGL g_TimerQueriesGL;
+
+#endif
+#endif