added hierarchical profiling (needs more cleanup)

avoid dynamic allocations in btRaycastVehicle

src/LinearMath/btQuickprof.h

@@ -707,6 +707,139 @@ std::string btProfiler::createStatsString(BlockTimingMethod method)
 
 #endif //USE_QUICKPROF
 
+
+/***************************************************************************************************
+**
+** profile.h
+**
+** Real-Time Hierarchical Profiling for Game Programming Gems 3
+**
+** by Greg Hjelstrom & Byon Garrabrant
+**
+***************************************************************************************************/
+
+/*
+** A node in the Profile Hierarchy Tree
+*/
+class	CProfileNode {
+
+public:
+	CProfileNode( const char * name, CProfileNode * parent );
+	~CProfileNode( void );
+
+	CProfileNode * Get_Sub_Node( const char * name );
+
+	CProfileNode * Get_Parent( void )		{ return Parent; }
+	CProfileNode * Get_Sibling( void )		{ return Sibling; }
+	CProfileNode * Get_Child( void )			{ return Child; }
+
+	void				Reset( void );
+	void				Call( void );
+	bool				Return( void );
+
+	const char *	Get_Name( void )				{ return Name; }
+	int				Get_Total_Calls( void )		{ return TotalCalls; }
+	float				Get_Total_Time( void )		{ return TotalTime; }
+
+protected:
+
+	const char *	Name;
+	int				TotalCalls;
+	float				TotalTime;
+	__int64			StartTime;
+	int				RecursionCounter;
+
+	CProfileNode *	Parent;
+	CProfileNode *	Child;
+	CProfileNode *	Sibling;
+};
+
+/*
+** An iterator to navigate through the tree
+*/
+class CProfileIterator
+{
+public:
+	// Access all the children of the current parent
+	void				First(void);
+	void				Next(void);
+	bool				Is_Done(void);
+    bool                Is_Root(void) { return (CurrentParent->Get_Parent() == 0); }
+
+	void				Enter_Child( int index );		// Make the given child the new parent
+	void				Enter_Largest_Child( void );	// Make the largest child the new parent
+	void				Enter_Parent( void );			// Make the current parent's parent the new parent
+
+	// Access the current child
+	const char *	Get_Current_Name( void )			{ return CurrentChild->Get_Name(); }
+	int				Get_Current_Total_Calls( void )	{ return CurrentChild->Get_Total_Calls(); }
+	float				Get_Current_Total_Time( void )	{ return CurrentChild->Get_Total_Time(); }
+
+	// Access the current parent
+	const char *	Get_Current_Parent_Name( void )			{ return CurrentParent->Get_Name(); }
+	int				Get_Current_Parent_Total_Calls( void )	{ return CurrentParent->Get_Total_Calls(); }
+	float				Get_Current_Parent_Total_Time( void )	{ return CurrentParent->Get_Total_Time(); }
+
+protected:
+
+	CProfileNode *	CurrentParent;
+	CProfileNode *	CurrentChild;
+
+	CProfileIterator( CProfileNode * start );
+	friend	class		CProfileManager;
+};
+
+
+/*
+** The Manager for the Profile system
+*/
+class	CProfileManager {
+public:
+	static	void						Start_Profile( const char * name );
+	static	void						Stop_Profile( void );
+
+	static	void						Reset( void );
+	static	void						Increment_Frame_Counter( void );
+	static	int						Get_Frame_Count_Since_Reset( void )		{ return FrameCounter; }
+	static	float						Get_Time_Since_Reset( void );
+
+	static	CProfileIterator *	Get_Iterator( void )	{ return new CProfileIterator( &Root ); }
+	static	void						Release_Iterator( CProfileIterator * iterator ) { delete iterator; }
+
+private:
+	static	CProfileNode			Root;
+	static	CProfileNode *			CurrentNode;
+	static	int						FrameCounter;
+	static	__int64					ResetTime;
+};
+
+
+/*
+** ProfileSampleClass is a simple way to profile a function's scope
+** Use the PROFILE macro at the start of scope to time
+*/
+class	CProfileSample {
+public:
+	CProfileSample( const char * name )
+	{ 
+		CProfileManager::Start_Profile( name ); 
+	}
+	
+	~CProfileSample( void )					
+	{ 
+		CProfileManager::Stop_Profile(); 
+	}
+};
+
+#if !defined(NO_PROFILE)
+#define	PROFILE( name )			CProfileSample __profile( name )
+#else
+#define	PROFILE( name )
+#endif
+
+
+
+
 #endif //QUICK_PROF_H