axmol/cocos2dx/support/CCProfiling.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

http://www.cocos2d-x.org

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****************************************************************************/
#include "CCProfiling.h"

#if CC_ENABLE_PROFILERS

#include <stdio.h>
#include <iostream>

namespace cocos2d
{
	using namespace std;
	static CCProfiler *g_sSharedProfiler;

	CCProfiler* CCProfiler::getSharedProfiler(void)
	{
        if (! g_sSharedProfiler)
		{
			g_sSharedProfiler = new CCProfiler();
			g_sSharedProfiler->init();
		}

		return g_sSharedProfiler;
	}

	CCProfilingTimer* CCProfiler::timerWithName(const char *pszTimerName, NSObject *pInstance)
	{
		CCProfiler *p = CCProfiler::getSharedProfiler();
		CCProfilingTimer *t = new CCProfilingTimer();
		t->initWithName(pszTimerName, pInstance);
		p->m_pActiveTimers->addObject(t);
		t->release();

		return t;
	}

	void CCProfiler::releaseTimer(CCProfilingTimer *pTimer)
	{
		CCProfiler *p = CCProfiler::getSharedProfiler();
		p->m_pActiveTimers->removeObject(pTimer);
	}

	bool CCProfiler::init()
	{
		m_pActiveTimers = new NSMutableArray<CCProfilingTimer*>();

		return true;
	}

	CCProfiler::~CCProfiler(void)
	{
		CCX_SAFE_RELEASE(m_pActiveTimers);
	}

	void CCProfiler::displayTimers()
	{
		NSMutableArray<CCProfilingTimer*>::NSMutableArrayIterator it;
		for (it = m_pActiveTimers->begin(); it != m_pActiveTimers->end(); ++it)
		{
			char *pszDescription = (*it)->description();
			cout << pszDescription << endl;
			delete pszDescription;
		}
	}

	// implementation of CCProfilingTimer

	bool CCProfilingTimer::initWithName(const char* pszTimerName, NSObject *pInstance)
	{
		char tmp[100];
		sprintf(tmp, "%s (0x%.8x)", pszTimerName, pInstance);
		m_NameStr = string(tmp);

		return true;
	}

	CCProfilingTimer::~CCProfilingTimer(void)
	{
		
	}

	char* CCProfilingTimer::description()
	{
        char *pszDes = new char[m_NameStr.length() + sizeof(double) + 20];
		sprintf(pszDes, "%s: avg time, %fms", m_NameStr.c_str(), m_dAverageTime);
		return pszDes;
	}

	void CCProfilingBeginTimingBlock(CCProfilingTimer *pTimer)
	{
		CCTime::gettimeofday(&pTimer->getStartTime(), NULL);
	}

	void CCProfilingEndTimingBlock(CCProfilingTimer *pTimer)
	{
        struct cc_timeval currentTime;
		CCTime::gettimeofday(&currentTime, NULL);
		CCTime::timersub(&currentTime, &pTimer->getStartTime(), &currentTime);
		double duration = currentTime.tv_sec * 1000.0 + currentTime.tv_usec / 1000.0;

		// return in milliseconds
		pTimer->setAverageTime((pTimer->getAverageTime() + duration) / 2.0f);
	}

} // end of namespace cocos2d

#endif // CC_ENABLE_PROFILERS