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adjust fps limiter for gdi renderer

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This commit is contained in:
FunkyFr3sh 2020-01-22 11:35:04 +01:00
parent 0b365ac275
commit da09069d7b
4 changed files with 35 additions and 44 deletions
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47
src/render_soft.c
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@ -42,7 +42,8 @@ DWORD WINAPI render_soft_main(void)
Sleep(500);
DWORD lastTick = 0;
DWORD tickStart = 0;
DWORD tickEnd = 0;
int maxFPS = ddraw->render.maxfps;
ddraw->fpsLimiter.tickLengthNs = 0;
ddraw->fpsLimiter.ticklength = 0;
@ -62,23 +63,13 @@ DWORD WINAPI render_soft_main(void)
while (ddraw->render.run && WaitForSingleObject(ddraw->render.sem, INFINITE) != WAIT_FAILED)
{
if (ddraw->fpsLimiter.ticklength > 0)
{
DWORD curTick = timeGetTime();
if (lastTick + ddraw->fpsLimiter.ticklength > curTick)
{
ReleaseSemaphore(ddraw->render.sem, 1, NULL);
SetEvent(ddraw->render.ev);
SwitchToThread();
continue;
}
lastTick = curTick;
}
#if _DEBUG
DrawFrameInfoStart();
#endif
if (ddraw->fpsLimiter.ticklength > 0)
tickStart = timeGetTime();
EnterCriticalSection(&ddraw->cs);
if (ddraw->primary && (ddraw->bpp == 16 || (ddraw->primary->palette && ddraw->primary->palette->data_rgb)))
@ -168,7 +159,33 @@ DWORD WINAPI render_soft_main(void)
DrawFrameInfoEnd();
#endif
SetEvent(ddraw->render.ev);
if (ddraw->fpsLimiter.ticklength > 0)
{
if (ddraw->fpsLimiter.hTimer)
{
FILETIME ft = { 0 };
GetSystemTimeAsFileTime(&ft);
if (CompareFileTime((FILETIME*)&ddraw->fpsLimiter.dueTime, &ft) == -1)
{
memcpy(&ddraw->fpsLimiter.dueTime, &ft, sizeof(LARGE_INTEGER));
}
else
{
WaitForSingleObject(ddraw->fpsLimiter.hTimer, ddraw->fpsLimiter.ticklength * 2);
}
ddraw->fpsLimiter.dueTime.QuadPart += ddraw->fpsLimiter.tickLengthNs;
SetWaitableTimer(ddraw->fpsLimiter.hTimer, &ddraw->fpsLimiter.dueTime, 0, NULL, NULL, FALSE);
}
else
{
tickEnd = timeGetTime();
if (tickEnd - tickStart < ddraw->fpsLimiter.ticklength)
Sleep(ddraw->fpsLimiter.ticklength - (tickEnd - tickStart));
}
}
}
return TRUE;