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aod: avoid spinning DisplayApp under high LVGL load

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mark9064 2024-04-23 00:16:19 +01:00 committed by JF
parent 3e8accde69
commit a407902b06
1 changed files with 9 additions and 7 deletions
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10
src/displayapp/DisplayApp.cpp
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@ -242,14 +242,16 @@ void DisplayApp::Refresh() {
// If not true, then wait that amount of time // If not true, then wait that amount of time
queueTimeout = CalculateSleepTime(); queueTimeout = CalculateSleepTime();
if (queueTimeout == 0) { if (queueTimeout == 0) {
// Keep running the task handler if it still has things to draw // Only advance the tick count when LVGL is done
while (!lv_task_handler()) { // Otherwise keep running the task handler while it still has things to draw
}; // Note: under high graphics load, LVGL will always have more work to do
// Drop frames that we've missed if the loop took way longer than expected to execute if (lv_task_handler() > 0) {
// Drop frames that we've missed if drawing/event handling took way longer than expected
while (queueTimeout == 0) { while (queueTimeout == 0) {
alwaysOnTickCount += 1; alwaysOnTickCount += 1;
queueTimeout = CalculateSleepTime(); queueTimeout = CalculateSleepTime();
} }
};
} }
} else { } else {
queueTimeout = portMAX_DELAY; queueTimeout = portMAX_DELAY;