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LARGE_INTEGER troubles...

elis-cool · 2002-10-24T12:45:55

im getting these errors in my FPS code, and I dont know what to do... C:\Windows\Profiles\Elijah\My Documents\C++\Shatterblox\Jester.cpp(320) : error C2676: binary '/' : 'union _LARGE_INTEGER' does not define this operator or a conversion to a type acceptable to the predefined operator // Frames per second void CJester::StartFPS() { LARGE_INTEGER iCount; LARGE_INTEGER iFreq; if(!QueryPerformanceFrequency(&iFreq) || !QueryPerformanceCounter(&iCount)) { Log("QueryPerformanceFrequency() or QueryPerformanceCounter() Failed."); PostQuitMessage(-1); } StartTime = iCount/iFreq; } And in some other code... (but both are LARGE_INTEGERS) C:\Windows\Profiles\Elijah\My Documents\C++\Shatterblox\Jester.cpp(336) : error C2784: '_D __cdecl std::operator -(const class std::reverse_iterator<_RI,_Ty,_Rt,_Pt,_D> &,const class std::reverse_iterator<_RI,_Ty,_Rt,_Pt,_D> &)' : could not deduce t emplate argument for 'const class std::reverse_iterator<_RI,_Ty,_Rt,_Pt,_D> &' from 'union _LARGE_INTEGER' C:\Windows\Profiles\Elijah\My Documents\C++\Shatterblox\Jester.cpp(336) : error C2676: binary '-' : 'union _LARGE_INTEGER' does not define this operator or a conversion to a type acceptable to the predefined operator FPS[9] = iEndTime - StartTime; Edit: wrong errors [edited by - elis-cool on October 22, 2002 4:07:46 AM]

General and Gameplay Programming Programming

Started by elis-cool October 22, 2002 03:02 AM

12 comments, last by elis-cool 21 years, 5 months ago

elis-cool

271

Author

October 23, 2002 06:32 AM

ok, nm, I seem to have it working now...

[email=esheppard@gmail.com]esheppard@gmail.com[/email]

elis-cool

271

Author

October 24, 2002 05:19 AM

Ok... for some reason my FPS has decreased now... before it was running at the monitors refresh rate (75Hz), but now its only running at ~68 FPS... could all the calls to QueryPerformanceCounter be slowing it down? but 50us isnt very long at all.. maybe its all the LARGE_INEGER math... anyone have any clues?

[email=esheppard@gmail.com]esheppard@gmail.com[/email]

Erik S. Andersson

149

October 24, 2002 06:15 AM

Don''t forget that you are doing an integer division between the Quadparts. Cast it to double instead, or implement your own division algorithm.

Anonymous

October 24, 2002 12:45 PM

You may want to check these links out...

http://www.mvps.org/directx/articles/selecting_timer_functions.htm

http://www.mvps.org/directx/articles/implementing_steady_motion.htm

LARGE_INTEGER troubles...

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LARGE_INTEGER troubles...

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