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Merge pull request #91 from madebr/sdl2_imgui_percounter

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skeleton: use SDL_GetPerformanceCounter instead of SDL_GetTicks
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aap 2022-05-14 21:00:17 +02:00 committed by GitHub
commit 8dbe79bcd2
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1 changed files with 5 additions and 4 deletions
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9
skeleton/sdl2.cpp
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@ -224,7 +224,8 @@ main(int argc, char *argv[])
if(EventHandler(RWINITIALIZE, nil) == EVENTERROR) if(EventHandler(RWINITIALIZE, nil) == EVENTERROR)
return 0; return 0;
float lastTime = SDL_GetTicks(); Uint64 lastTicks = SDL_GetPerformanceCounter();
const float tickPeriod = 1.f / SDL_GetPerformanceFrequency();
SDL_Event event; SDL_Event event;
int mouseButtons = 0; int mouseButtons = 0;
@ -297,12 +298,12 @@ main(int argc, char *argv[])
} }
} }
} }
float currTime = SDL_GetTicks(); Uint64 currTicks = SDL_GetPerformanceCounter();
float timeDelta = (currTime - lastTime) * 0.001f; float timeDelta = (currTicks - lastTicks) * tickPeriod;
EventHandler(IDLE, &timeDelta); EventHandler(IDLE, &timeDelta);
lastTime = currTime; lastTicks = currTicks;
} }
SDL_StopTextInput(); SDL_StopTextInput();