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fix framerate target not adjusting with vcount writes (#2181)

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This commit is contained in:
Jakly
2024-10-30 14:40:33 -04:00
committed by GitHub
parent 3877a8e46b
commit 4ba8f330c4
3 changed files with 21 additions and 18 deletions
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21
src/frontend/qt_sdl/EmuThread.cpp
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@ -359,7 +359,7 @@ void EmuThread::run()
if (slowmo) emuInstance->curFPS = emuInstance->slowmoFPS;
else if (fastforward) emuInstance->curFPS = emuInstance->fastForwardFPS;
else if (!emuInstance->doLimitFPS) emuInstance->curFPS = 1.0 / 1000.0;
else if (!emuInstance->doLimitFPS) emuInstance->curFPS = 1000.0;
else emuInstance->curFPS = emuInstance->targetFPS;
if (emuInstance->audioDSiVolumeSync && emuInstance->nds->ConsoleType == 1)
@ -378,16 +378,18 @@ void EmuThread::run()
if (emuInstance->doAudioSync && !(fastforward || slowmo))
emuInstance->audioSync();
double frametimeStep = nlines / (60.0 * 263.0);
double frametimeStep = nlines / (emuInstance->curFPS * 263.0);
if (frametimeStep < 0.001) frametimeStep = 0.001;
{
double curtime = SDL_GetPerformanceCounter() * perfCountsSec;
frameLimitError += emuInstance->curFPS - (curtime - lastTime);
if (frameLimitError < -emuInstance->curFPS)
frameLimitError = -emuInstance->curFPS;
if (frameLimitError > emuInstance->curFPS)
frameLimitError = emuInstance->curFPS;
frameLimitError += frametimeStep - (curtime - lastTime);
if (frameLimitError < -frametimeStep)
frameLimitError = -frametimeStep;
if (frameLimitError > frametimeStep)
frameLimitError = frametimeStep;
if (round(frameLimitError * 1000.0) > 0.0)
{
@ -415,10 +417,11 @@ void EmuThread::run()
winUpdateFreq = fps / (u32)round(fpstarget);
if (winUpdateFreq < 1)
winUpdateFreq = 1;
double actualfps = (59.8261 * 263.0) / nlines;
int inst = emuInstance->instanceID;
if (inst == 0)
sprintf(melontitle, "[%d/%.0f] melonDS " MELONDS_VERSION, fps, fpstarget);
sprintf(melontitle, "[%d/%.0f] melonDS " MELONDS_VERSION, fps, actualfps);
else
sprintf(melontitle, "[%d/%.0f] melonDS (%d)", fps, fpstarget, inst+1);
changeWindowTitle(melontitle);