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fix dosbox cycle timing code 

- closes #4295
This commit is contained in:
Morilli 2025-04-23 03:43:30 +02:00
parent 0001707a42
commit 1fd6e2e085
2 changed files with 7 additions and 7 deletions
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Assets/dll/dosbox.wbx.zst
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waterbox/dosbox/bizhawk.cpp
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@ -28,7 +28,6 @@ cothread_t _driverCoroutine;
// Timing-related stuff // Timing-related stuff
double ticksTarget; double ticksTarget;
double ticksPerFrame;
uint32_t _ticksElapsed; uint32_t _ticksElapsed;
uint32_t _GetTicks() { return _ticksElapsed; } uint32_t _GetTicks() { return _ticksElapsed; }
void _Delay(uint32_t ticks) { _ticksElapsed += ticks; co_switch(_driverCoroutine); } void _Delay(uint32_t ticks) { _ticksElapsed += ticks; co_switch(_driverCoroutine); }
@ -285,18 +284,19 @@ ECL_EXPORT void FrameAdvance(MyFrameInfo* f)
// Calculating fps // Calculating fps
double fps = (double)f->framerateNumerator / (double)f->framerateDenominator; double fps = (double)f->framerateNumerator / (double)f->framerateDenominator;
ticksPerFrame = 1000.0 / fps; double ticksPerFrame = 1000.0 / fps;
//printf("Running Framerate: %d / %d = %f\n", f->framerateNumerator, f->framerateDenominator, fps); //printf("Running Framerate: %d / %d = %f\n", f->framerateNumerator, f->framerateDenominator, fps);
// Increasing ticks target // Increasing ticks target
ticksTarget += ticksPerFrame; ticksTarget += ticksPerFrame;
uint32_t previousTicksElapsed = _ticksElapsed;
// Advancing until the required tick target is met // Advancing until the required tick target is met
while (_ticksElapsed < (int)ticksTarget) co_switch(_emuCoroutine); while (_ticksElapsed < (uint32_t)ticksTarget) co_switch(_emuCoroutine);
// Updating ticks elapsed // Updating ticks elapsed
f->base.Cycles = _ticksElapsed; f->base.Cycles = _ticksElapsed - previousTicksElapsed;
// Updating video output // Updating video output
// printf("w: %u, h: %u, bytes: %p\n", sdl.surface->w, sdl.surface->h, sdl.surface->pixels); // printf("w: %u, h: %u, bytes: %p\n", sdl.surface->w, sdl.surface->h, sdl.surface->pixels);
f->base.Width = sdl.surface->w; f->base.Width = sdl.surface->w;