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image/loading: Adjust frame timing by accrued delay

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This should fix animations systematically slowing down.
This commit is contained in:
Sophie Herold 2026-06-23 22:45:16 +02:00
parent 5505f5d876
commit eee2b415d2
4 changed files with 26 additions and 14 deletions
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17
src/widgets/image/loading.rs
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@ -160,17 +160,26 @@ impl imp::LpImage {
// Do not animate if not visible
if !obj.is_mapped() {
self.last_animated_frame.set(None);
return glib::ControlFlow::Continue;
}
let elapsed = clock.frame_time() - self.last_animated_frame.get();
let duration = std::time::Duration::from_micros(elapsed as u64);
let duration = if let Some(last_animated_frame) = self.last_animated_frame.get() {
let elapsed = clock.frame_time() - last_animated_frame;
std::time::Duration::from_micros(elapsed as u64)
} else {
self.last_animated_frame.set(Some(clock.frame_time()));
std::time::Duration::ZERO
};
// Check if it's time to show the next frame
if self.frame_buffer.frame_timeout(duration) {
if let Some(delay) = self.frame_buffer.frame_timeout(duration) {
// Just draw since frame_timeout updated to new frame
obj.queue_draw();
self.last_animated_frame.set(clock.frame_time());
// Adjust the time when the frame was shown by how much anwanted delay we
// accumulated
self.last_animated_frame
.set(Some(clock.frame_time() - delay.as_micros() as i64));
if let Some(decoder) = self.decoder.borrow().as_ref() {
// Decode new frame and load it into buffer
decoder.fill_frame_buffer();