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/***************************************************************************************************
**
** Real-Time Hierarchical Profiling for Game Programming Gems 3
**
** by Greg Hjelstrom & Byon Garrabrant
**
***************************************************************************************************/
// Credits: The Clock class was inspired by the Timer classes in
// Ogre (www.ogre3d.org).
#ifndef BT_QUICK_PROF_H
#define BT_QUICK_PROF_H
#include "btScalar.h"
#define USE_BT_CLOCK 1
#ifdef USE_BT_CLOCK
///The btClock is a portable basic clock that measures accurate time in seconds, use for profiling.
class btClock
{
public:
btClock();
btClock(const btClock& other);
btClock& operator=(const btClock& other);
~btClock();
/// Resets the initial reference time.
void reset();
/// Returns the time in ms since the last call to reset or since
/// the btClock was created.
unsigned long long int getTimeMilliseconds();
/// Returns the time in us since the last call to reset or since
/// the Clock was created.
unsigned long long int getTimeMicroseconds();
unsigned long long int getTimeNanoseconds();
/// Returns the time in s since the last call to reset or since
/// the Clock was created.
btScalar getTimeSeconds();
private:
struct btClockData* m_data;
};
#endif //USE_BT_CLOCK
typedef void(btEnterProfileZoneFunc)(const char* msg);
typedef void(btLeaveProfileZoneFunc)();
btEnterProfileZoneFunc* btGetCurrentEnterProfileZoneFunc();
btLeaveProfileZoneFunc* btGetCurrentLeaveProfileZoneFunc();
void btSetCustomEnterProfileZoneFunc(btEnterProfileZoneFunc* enterFunc);
void btSetCustomLeaveProfileZoneFunc(btLeaveProfileZoneFunc* leaveFunc);
#ifndef BT_ENABLE_PROFILE
#define BT_NO_PROFILE 1
#endif //BT_NO_PROFILE
const unsigned int BT_QUICKPROF_MAX_THREAD_COUNT = 64;
//btQuickprofGetCurrentThreadIndex will return -1 if thread index cannot be determined,
//otherwise returns thread index in range [0..maxThreads]
unsigned int btQuickprofGetCurrentThreadIndex2();
#ifndef BT_NO_PROFILE
#include <stdio.h> //@todo remove this, backwards compatibility
#include "btAlignedAllocator.h"
#include <new>
///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 CleanupMemory();
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; }
void* GetUserPointer() const { return m_userPtr; }
void SetUserPointer(void* ptr) { m_userPtr = ptr; }
protected:
const char* Name;
int TotalCalls;
float TotalTime;
unsigned long int StartTime;
int RecursionCounter;
CProfileNode* Parent;
CProfileNode* Child;
CProfileNode* Sibling;
void* m_userPtr;
};
///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(); }
void* Get_Current_UserPointer(void) { return CurrentChild->GetUserPointer(); }
void Set_Current_UserPointer(void* ptr) { CurrentChild->SetUserPointer(ptr); }
// 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 CleanupMemory(void);
// {
// Root.CleanupMemory();
// }
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); }
static void dumpRecursive(CProfileIterator* profileIterator, int spacing);
static void dumpAll();
private:
static int FrameCounter;
static unsigned long int ResetTime;
};
#endif //#ifndef BT_NO_PROFILE
///ProfileSampleClass is a simple way to profile a function's scope
///Use the BT_PROFILE macro at the start of scope to time
class CProfileSample
{
public:
CProfileSample(const char* name);
~CProfileSample(void);
};
#define BT_PROFILE(name) CProfileSample __profile(name)
#endif //BT_QUICK_PROF_H
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