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Use maximumFramesPerSecond only as fallback

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sean 2022-05-25 18:09:40 +02:00
parent a0490cec0f
commit d66238035c
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1 changed files with 5 additions and 5 deletions
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10
MoltenVK/MoltenVK/GPUObjects/MVKSwapchain.mm
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@ -439,19 +439,19 @@ VkResult MVKSwapchain::getRefreshCycleDuration(VkRefreshCycleDurationGOOGLE *pRe
}
}
#if MVK_XCODE_13
// macOS 12+ only
double framesPerSecond = [screen maximumFramesPerSecond];
#else
CGDirectDisplayID displayId = [[[screen deviceDescription] objectForKey:@"NSScreenNumber"] unsignedIntValue];
CGDisplayModeRef mode = CGDisplayCopyDisplayMode(displayId);
double framesPerSecond = CGDisplayModeGetRefreshRate(mode);
CGDisplayModeRelease(mode);
#if MVK_XCODE_13
if (framesPerSecond == 0 && [screen respondsToSelector: @selector(maximumFramesPerSecond)])
framesPerSecond = [screen maximumFramesPerSecond];
#endif
// Builtin panels, e.g., on MacBook, report a zero refresh rate.
if (framesPerSecond == 0)
framesPerSecond = 60.0;
#endif
#endif
pRefreshCycleDuration->refreshDuration = (uint64_t)1e9 / framesPerSecond;