MacroQuest64

Code: Select all

[color=red]
	if (Elapsed)
	{[/color]
		// less than one second?
		if (Elapsed<1000)
		{
			// elapsed 150 ms
			// extrapolate. how many frame arrays would fit in one second?
			FPS=(float)(1000.0f/(float)Elapsed); 
			// 6.66667=1000/150
			// now multiply by the number of frames we've gone through
			// Frames 10
			FPS*=(float)Frames;
			// 66.6667= FPS * 10
	//		FPS=
		}
		else
		{
			// Frames = 100
			// Elapsed = 2000ms
			// FPS = 100 / (2000/1000) = 50

			// interpolate. how many seconds did it take for our frame array?
			FPS=(float)Frames/(float)((float)Elapsed/1000.0f); // Frames / number of seconds
		}
[color=red]	}
	else
		FPS=999.0f;[/color]
	// advance frame count
	CurrentFrame++; 

Code: Select all

VOID ProcessFrame()
{
	// Update frame array
	DWORD Now=FrameArray[CurrentFrame]=GetTickCount();

	DWORD FirstFrame=0;
	DWORD Frames=CurrentFrame;
	if (bFrameArrayFilled)
	{
		FirstFrame=CurrentFrame+1;
		if (FirstFrame>FRAME_COUNT)
		{
			FirstFrame=FRAME_COUNT;
		}
		Frames=FRAME_COUNT;
	}
	// Calculate time this frame
	DWORD LastFrame=CurrentFrame-1;
	if (LastFrame>FRAME_COUNT)
	{
		if (bFrameArrayFilled)
		{
			LastFrame=FRAME_COUNT;
			FrameTime=Now-FrameArray[LastFrame];
		}
		else
			FrameTime=0;
	}
	else
		FrameTime=Now-FrameArray[LastFrame];

	// Calculate FPS
	// Get amount of time between first frame and now
	DWORD Elapsed=Now-FrameArray[FirstFrame];


	if (Elapsed)
	{
		// less than one second?
		if (Elapsed<1000)
		{
			// elapsed 150 ms
			// extrapolate. how many frame arrays would fit in one second?
			FPS=(float)(1000.0f/(float)Elapsed); 
			// 6.66667=1000/150
			// now multiply by the number of frames we've gone through
			// Frames 10
			FPS*=(float)Frames;
			// 66.6667= FPS * 10
	//		FPS=
		}
		else
		{
			// Frames = 100
			// Elapsed = 2000ms
			// FPS = 100 / (2000/1000) = 50

			// interpolate. how many seconds did it take for our frame array?
			FPS=(float)Frames/(float)((float)Elapsed/1000.0f); // Frames / number of seconds
		}
	}
	else
		FPS=999.0f;
	// advance frame count
	if (++CurrentFrame>FRAME_COUNT)
	{
		CurrentFrame=0;
		bFrameArrayFilled=1;
	}
}