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compositing: Tick animations right away when content enables animations.

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Otherwise, we have to wait for the next vsync. This was capping the
framerate of the particles demo at 30 FPS in most cases.
This commit is contained in:
Patrick Walton 2015-07-28 18:30:12 -07:00
parent 4bc1db3fe8
commit 1094b30627
1 changed files with 11 additions and 4 deletions
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15
components/compositing/compositor.rs
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@ -530,7 +530,12 @@ impl<Window: WindowMethods> IOCompositor<Window> {
self.composite_if_necessary(CompositingReason::Animation);
}
AnimationState::AnimationCallbacksPresent => {
self.get_or_create_pipeline_details(pipeline_id).animation_callbacks_running = true;
if self.get_or_create_pipeline_details(pipeline_id).animation_callbacks_running {
return
}
self.get_or_create_pipeline_details(pipeline_id).animation_callbacks_running =
true;
self.tick_animations_for_pipeline(pipeline_id);
self.composite_if_necessary(CompositingReason::Animation);
}
AnimationState::NoAnimationsPresent => {
@ -1072,13 +1077,15 @@ impl<Window: WindowMethods> IOCompositor<Window> {
for (pipeline_id, pipeline_details) in self.pipeline_details.iter() {
if pipeline_details.animations_running ||
pipeline_details.animation_callbacks_running {
self.constellation_chan.0.send(ConstellationMsg::TickAnimation(*pipeline_id))
.unwrap();
self.tick_animations_for_pipeline(*pipeline_id)
}
}
}
fn tick_animations_for_pipeline(&self, pipeline_id: PipelineId) {
self.constellation_chan.0.send(ConstellationMsg::TickAnimation(pipeline_id)).unwrap()
}
fn constrain_viewport(&mut self, pipeline_id: PipelineId, constraints: ViewportConstraints) {
let is_root = self.root_pipeline.as_ref().map_or(false, |root_pipeline| {
root_pipeline.id == pipeline_id