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backend/headless: increase precision of frame scheduling and clean up code

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umbrageodotus 2026-03-12 17:00:09 +00:00 • committed by GitHub
parent 24533efe76
commit 17d71d011f
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1 changed files with 4 additions and 7 deletions
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11
src/backend/Headless.cpp
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@ -73,18 +73,15 @@ void Aquamarine::CHeadlessOutput::scheduleFrame(const scheduleFrameReason reason
else if (currentState.customMode)
refreshRatemHz = currentState.customMode->refreshRate;
int64_t frameIntervalNs = (TIMESPEC_NSEC_PER_SEC * 1000LL) / refreshRatemHz;
const auto frameInterval = std::chrono::nanoseconds(1'000'000'000'000LL / refreshRatemHz);
const auto NEXT_FRAME_TIME = lastFrame + frameInterval;
const auto NOW = std::chrono::steady_clock::now();
const int64_t TIME_SINCE_FRAME = std::chrono::duration_cast<std::chrono::nanoseconds>(NOW - lastFrame).count();
const int64_t TIME_UNTIL_FRAME = frameIntervalNs - TIME_SINCE_FRAME;
if (TIME_UNTIL_FRAME <= 0) {
if (std::chrono::steady_clock::now() >= NEXT_FRAME_TIME) {
backend->backend->addIdleEvent(framecb);
return;
}
backend->addTimer(NOW + std::chrono::nanoseconds(TIME_UNTIL_FRAME), [this]() {
backend->addTimer(NEXT_FRAME_TIME, [this]() {
if (framecb)
(*framecb)();
});