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Set preferredFrameRateRange in main callbacks CADisplayLink

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Adrian
2025-09-06 18:58:01 +02:00
committed by Sam Lantinga
parent 02fc571cfd
commit 01e6aceffc
1 changed files with 11 additions and 0 deletions
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11
src/main/ios/SDL_sysmain_callbacks.m
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@@ -43,6 +43,17 @@ static SDLIosMainCallbacksDisplayLink *globalDisplayLink;
{
if ((self = [super init])) {
self.displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(appIteration:)];
// Enable high refresh rates on iOS
// To enable this on phones, you should add the following line to Info.plist:
// <key>CADisableMinimumFrameDurationOnPhone</key> <true/>
// If main callbacks are used then this CADisplayLink will affect framerate, not one in SDL_uikitviewcontroller.
if (@available(iOS 15.0, tvOS 15.0, *)) {
const SDL_DisplayMode *mode = SDL_GetDesktopDisplayMode(SDL_GetPrimaryDisplay());
if (mode && mode->refresh_rate > 60.0f) {
int frame_rate = (int)mode->refresh_rate;
self.displayLink.preferredFrameRateRange = CAFrameRateRangeMake((frame_rate * 2) / 3, frame_rate, frame_rate);
}
}
[self.displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
}
return self;