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render: fix fps limit set divide by 0, allow enabling limiter after startup

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This commit is contained in:
somewhatlurker
2019-09-06 00:04:55 +10:00
parent f58d580b00
commit df5da4a740
1 changed files with 30 additions and 28 deletions
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source-code/source/plugins/Render/dllmain.cpp
+30 -28
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@@ -99,10 +99,10 @@ __int64 hookedParseParameters(int a1, __int64* a2)
time_point<high_resolution_clock> sleepUntil = high_resolution_clock::now(); time_point<high_resolution_clock> sleepUntil = high_resolution_clock::now();
time_point<high_resolution_clock> nextUpdate = high_resolution_clock::now(); time_point<high_resolution_clock> nextUpdate = high_resolution_clock::now();
nanoseconds expectedFrameDuration(1000000000 / nFpsLimit); nanoseconds expectedFrameDuration;
nanoseconds sleepWindow(2500000); nanoseconds sleepWindow(2500000);
__int64 __fastcall hookedEngineUpdate(__int64 a1) __int64 __fastcall limiterFuncNormal(__int64 a1)
{ {
auto timeNow = high_resolution_clock::now(); auto timeNow = high_resolution_clock::now();
@@ -126,7 +126,7 @@ __int64 __fastcall hookedEngineUpdate(__int64 a1)
return result; return result;
} }
__int64 __fastcall hookedEngineUpdateLight(__int64 a1) __int64 __fastcall limiterFuncLight(__int64 a1)
{ {
auto timeNow = high_resolution_clock::now(); auto timeNow = high_resolution_clock::now();
@@ -171,6 +171,16 @@ __int64 __fastcall hookedEngineUpdateLight(__int64 a1)
return result; return result;
} }
__int64 __fastcall hookedEngineUpdate(__int64 a1)
{
if (nFpsLimit < 1)
return divaEngineUpdate(a1);
else if (nUseLightLimiter)
return limiterFuncLight(a1);
else
return limiterFuncNormal(a1);
}
extern "C" __declspec(dllexport) int getFramerateLimit(void) extern "C" __declspec(dllexport) int getFramerateLimit(void)
{ {
return nFpsLimit; return nFpsLimit;
@@ -179,7 +189,10 @@ extern "C" __declspec(dllexport) int getFramerateLimit(void)
extern "C" __declspec(dllexport) void setFramerateLimit(int framerate) extern "C" __declspec(dllexport) void setFramerateLimit(int framerate)
{ {
nFpsLimit = framerate; nFpsLimit = framerate;
expectedFrameDuration = nanoseconds(1000000000 / nFpsLimit); if (nFpsLimit < 1)
expectedFrameDuration = nanoseconds(0);
else
expectedFrameDuration = nanoseconds(1000000000 / nFpsLimit);
return; return;
} }
@@ -201,32 +214,21 @@ BOOL APIENTRY DllMain(HMODULE hModule,
DetourAttach(&(PVOID&)divaParseParameters, hookedParseParameters); DetourAttach(&(PVOID&)divaParseParameters, hookedParseParameters);
DetourTransactionCommit(); DetourTransactionCommit();
if (nFpsLimit > 0)
// set sleep time resolution to 2ms or device minimum (whichever's lower)
TIMECAPS tc;
if (timeGetDevCaps(&tc, sizeof(TIMECAPS)) == MMSYSERR_NOERROR)
{ {
if (nUseLightLimiter) UINT wTimerRes = min(max(tc.wPeriodMin, 2), tc.wPeriodMax);
{ timeBeginPeriod(wTimerRes);
// set sleep time resolution to 2ms or device minimum
TIMECAPS tc;
if (timeGetDevCaps(&tc, sizeof(TIMECAPS)) == MMSYSERR_NOERROR)
{
UINT wTimerRes = min(max(tc.wPeriodMin, 2), tc.wPeriodMax);
timeBeginPeriod(wTimerRes);
}
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach(&(PVOID&)divaEngineUpdate, hookedEngineUpdateLight);
DetourTransactionCommit();
}
else
{
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach(&(PVOID&)divaEngineUpdate, hookedEngineUpdate);
DetourTransactionCommit();
}
} }
setFramerateLimit(nFpsLimit);
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach(&(PVOID&)divaEngineUpdate, hookedEngineUpdate);
DetourTransactionCommit();
} }
return TRUE; return TRUE;
} }