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fceux
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Bug fix for frame advance delay when using emulation speeds other than normal. Scale delay count by ratio of the actual frame rate over the nominal base rate.

This commit is contained in:
mjbudd77 2021-09-27 20:14:23 -04:00
parent cc316f688b
commit 672dcac6b2
1 changed files with 21 additions and 0 deletions
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21
src/fceu.cpp
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@ -715,6 +715,12 @@ void AutoFire(void)
void UpdateAutosave(void);
#ifdef __QT_DRIVER__
double getFrameRate(void);
double getBaseFrameRate(void);
#endif
///Emulates a single frame.
///Skip may be passed in, if FRAMESKIP is #defined, to cause this to emulate more than one frame
@ -726,10 +732,25 @@ void FCEUI_Emulate(uint8 **pXBuf, int32 **SoundBuf, int32 *SoundBufSize, int ski
if (frameAdvanceRequested)
{
#ifdef __QT_DRIVER__
double baseFrameRatio = getFrameRate() / getBaseFrameRate();
int32_t frameAdvanceDelayScaled = (int32_t)( (double)frameAdvance_Delay * baseFrameRatio);
if ( frameAdvanceDelayScaled < 1 )
{
frameAdvanceDelayScaled = 1;
}
if (frameAdvance_Delay_count == 0 || frameAdvance_Delay_count >= frameAdvanceDelayScaled)
EmulationPaused = EMULATIONPAUSED_FA;
if (frameAdvance_Delay_count < frameAdvanceDelayScaled)
frameAdvance_Delay_count++;
#else
if (frameAdvance_Delay_count == 0 || frameAdvance_Delay_count >= frameAdvance_Delay)
EmulationPaused = EMULATIONPAUSED_FA;
if (frameAdvance_Delay_count < frameAdvance_Delay)
frameAdvance_Delay_count++;
#endif
}
if (EmulationPaused & EMULATIONPAUSED_FA)