FramesPerSecond Class Reference

Calculate "frame-per-second" of something. More...

Public Member Functions
	FramesPerSecond () noexcept
void	end_frame ()
	Call at the end of every frame. More...
float	fps ()
	Retrieve the current FPS value. More...
EGT_NODISCARD bool	ready () const
	Is any calculation ready? More...
void	start ()
	Start/reset the counter. More...

Protected Attributes
float	m_fps {0.}
	Calculated FPS. More...
uint64_t	m_frames {0}
	Number of frames recorded since start time. More...
bool	m_ready {false}
	Is m_fps valid and ready? More...
std::chrono::time_point< std::chrono::steady_clock >	m_start {}
	Start time. More...

Detailed Description

Calculate "frame-per-second" of something.

FramesPerSecond fps;
fps.start();
while (true)
{
    std::cout << std::round(fps.fps()) << std::endl;
    fps.end_frame();
}

Constructor & Destructor Documentation

FramesPerSecond()

FramesPerSecond ( )

inlinenoexcept

Member Function Documentation

end_frame()

void end_frame ( )

inline

Call at the end of every frame.

fps()

float fps ( )

inline

Retrieve the current FPS value.

ready()

EGT_NODISCARD bool ready ( ) const

inline

Is any calculation ready?

start()

void start ( )

inline

Start/reset the counter.

Member Data Documentation

m_fps

float m_fps {0.}

protected

Calculated FPS.

m_frames

uint64_t m_frames {0}

protected

Number of frames recorded since start time.

m_ready

bool m_ready {false}

protected

Is m_fps valid and ready?

m_start

std::chrono::time_point<std::chrono::steady_clock> m_start {}

protected

Start time.