Graphics::FPSCounter Class Reference

A class counting frames per second. More...

#include <fpscounter.h>

Collaboration diagram for Graphics::FPSCounter:

Public Member Functions
	FPSCounter (size_t secs)
	Average the FPS over that many seconds. More...
	~FPSCounter ()
uint32	getFPS () const
	Get the current FPS value. More...
void	reset ()
	Reset the counter. More...
void	finishedFrame ()
	Signal a finished frame. More...

Private Member Functions
void	calculateFPS ()
	Calculate the average FPS value. More...

Private Attributes
uint32	_lastSampled
	The last time a finished frame was signaled. More...
size_t	_seconds
	Number of seconds over which to average the FPS. More...
size_t	_currentSecond
	Current second we measure. More...
bool	_hasFullSeconds
	Got all samples? More...
uint32	_fps
	The current FPS value. More...
Common::ScopedArray< uint32 >	_frames
	All frame counters. More...

Detailed Description

A class counting frames per second.

Definition at line 34 of file fpscounter.h.

Constructor & Destructor Documentation

FPSCounter()

Graphics::FPSCounter::FPSCounter

(

size_t

secs

)

Average the FPS over that many seconds.

Definition at line 35 of file fpscounter.cpp.

References _frames, _seconds, reset(), and Common::ScopedPtrBase< T, Deallocator >::reset().

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~FPSCounter()

Graphics::FPSCounter::~FPSCounter

(

)

Definition at line 43 of file fpscounter.cpp.

Member Function Documentation

calculateFPS()

void Graphics::FPSCounter::calculateFPS ( )

private

Calculate the average FPS value.

Definition at line 91 of file fpscounter.cpp.

References _currentSecond, _fps, _frames, _hasFullSeconds, and _seconds.

Referenced by finishedFrame().

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finishedFrame()

void Graphics::FPSCounter::finishedFrame

(

)

Signal a finished frame.

Definition at line 63 of file fpscounter.cpp.

References _currentSecond, _frames, _hasFullSeconds, _lastSampled, _seconds, calculateFPS(), and EventMan.

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getFPS()

uint32 Graphics::FPSCounter::getFPS

(

)

const

Get the current FPS value.

Definition at line 46 of file fpscounter.cpp.

References _fps.

reset()

void Graphics::FPSCounter::reset

(

)

Reset the counter.

Definition at line 50 of file fpscounter.cpp.

References _currentSecond, _fps, _frames, _hasFullSeconds, _lastSampled, and _seconds.

Referenced by FPSCounter().

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Member Data Documentation

_currentSecond

size_t Graphics::FPSCounter::_currentSecond

private

Current second we measure.

Definition at line 53 of file fpscounter.h.

Referenced by calculateFPS(), finishedFrame(), and reset().

_fps

uint32 Graphics::FPSCounter::_fps

private

The current FPS value.

Definition at line 57 of file fpscounter.h.

Referenced by calculateFPS(), getFPS(), and reset().

_frames

Common::ScopedArray<uint32> Graphics::FPSCounter::_frames

private

All frame counters.

Definition at line 59 of file fpscounter.h.

Referenced by calculateFPS(), finishedFrame(), FPSCounter(), and reset().

_hasFullSeconds

bool Graphics::FPSCounter::_hasFullSeconds

private

Got all samples?

Definition at line 55 of file fpscounter.h.

Referenced by calculateFPS(), finishedFrame(), and reset().

_lastSampled

uint32 Graphics::FPSCounter::_lastSampled

private

The last time a finished frame was signaled.

Definition at line 50 of file fpscounter.h.

Referenced by finishedFrame(), and reset().

_seconds

size_t Graphics::FPSCounter::_seconds

private

Number of seconds over which to average the FPS.

Definition at line 52 of file fpscounter.h.

Referenced by calculateFPS(), finishedFrame(), FPSCounter(), and reset().

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The documentation for this class was generated from the following files:

• src/graphics/fpscounter.h
• src/graphics/fpscounter.cpp