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Added SDL_DelayPrecise()

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SDL_DelayNS() now passes through to the high precision OS delay function, and SDL_DelayPrecise() tries to busy wait to get as close as possible to the desired wait time.

Fixes https://github.com/libsdl-org/SDL/issues/11141
This commit is contained in:
Sam Lantinga
2024-10-10 07:43:34 -07:00
parent 28a70a5b71
commit c8f5f6d47a
8 changed files with 53 additions and 4 deletions
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2
src/main/generic/SDL_sysmain_callbacks.c
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@@ -65,7 +65,7 @@ int SDL_EnterAppMainCallbacks(int argc, char* argv[], SDL_AppInit_func appinit,
} else {
const Uint64 now = SDL_GetTicksNS();
if (next_iteration > now) { // Running faster than the limit, sleep a little.
SDL_DelayNS(next_iteration - now);
SDL_DelayPrecise(next_iteration - now);
} else {
next_iteration = now; // running behind (or just lost the window)...reset the timer.
}