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always cap FPS to 1000

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This commit is contained in:
RSDuck 2020-12-04 00:00:35 +01:00
parent 906521e7e9
commit 42e083960e
1 changed files with 15 additions and 15 deletions
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18
src/frontend/qt_sdl/main.cpp
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@ -495,16 +495,17 @@ void EmuThread::run()
double frametimeStep = nlines / (60.0 * 263.0);
{
bool limitfps = Config::LimitFPS && !fastforward;
double practicalFramelimit = limitfps ? frametimeStep : 1.0 / 1000.0;
double curtime = SDL_GetPerformanceCounter() * perfCountsSec;
bool limitfps = Config::LimitFPS && !fastforward;
if (limitfps)
{
frameLimitError += frametimeStep - (curtime - lastTime);
if (frameLimitError < -frametimeStep)
frameLimitError = -frametimeStep;
if (frameLimitError > frametimeStep)
frameLimitError = frametimeStep;
frameLimitError += practicalFramelimit - (curtime - lastTime);
if (frameLimitError < -practicalFramelimit)
frameLimitError = -practicalFramelimit;
if (frameLimitError > practicalFramelimit)
frameLimitError = practicalFramelimit;
if (round(frameLimitError * 1000.0) > 0.0)
{
@ -513,7 +514,6 @@ void EmuThread::run()
curtime = SDL_GetPerformanceCounter() * perfCountsSec;
frameLimitError -= curtime - timeBeforeSleep;
}
}
lastTime = curtime;
}