a bug in f2dFPSControllerImpl

[Xrysnow]

timeBeginPeriod 和 timeEndPeriod 应紧挨 Sleep ，否则会受到其他程序的影响。

fancy2d/fancy2D/Engine/f2dFPSControllerImpl.h

Lines 108 to 118 in 61c91e4

	f2dFPSControllerImpl(fuInt MaxFPS)
	: m_TotalFrame(0), m_TotalTime(0), m_MaxFPS(0), m_CurFPS(0),
	m_FrameTimeSecond(0), m_FrameCountSecond(0),
	m_FPSMax(MaxFPS), m_FrameDelay(MaxFPS?1./MaxFPS : 0)
	{
	timeBeginPeriod(1);
	}
	~f2dFPSControllerImpl()
	{
	timeEndPeriod(1);
	}

[9chu]

https://groups.google.com/forum/#!topic/borland.public.delphi.nativeapi.win32/FFV2KU62ht4

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