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Pass PaintTile to painting threads

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This will be useful because in the future, PaintTiles might hold simple
DisplayLists instead of StackingContexts.
This commit is contained in:
Martin Robinson 2015-09-22 11:29:15 -07:00
parent 117c278936
commit 71b83d6e99
2 changed files with 31 additions and 29 deletions
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21
components/gfx/display_list/mod.rs
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@ -99,7 +99,7 @@ pub struct DisplayList {
/// Child stacking contexts.
pub children: LinkedList<Arc<StackingContext>>,
/// Child PaintLayers that will be rendered on top of everything else.
pub layered_children: LinkedList<PaintLayer>,
pub layered_children: LinkedList<Arc<PaintLayer>>,
}
impl DisplayList {
@ -705,8 +705,8 @@ impl StackingContextLayerCreator {
stacking_context.display_list.layered_children.back().unwrap().id.companion_layer_id();
let child_stacking_context =
Arc::new(stacking_context.create_layered_child(next_layer_id, display_list));
stacking_context.display_list.layered_children.push_back(
PaintLayer::new(next_layer_id, color::transparent(), child_stacking_context));
stacking_context.display_list.layered_children.push_back(Arc::new(
PaintLayer::new(next_layer_id, color::transparent(), child_stacking_context)));
self.all_following_children_need_layers = true;
}
}
@ -717,7 +717,7 @@ impl StackingContextLayerCreator {
if let Some(layer_id) = stacking_context.layer_id {
self.finish_building_current_layer(parent_stacking_context);
parent_stacking_context.display_list.layered_children.push_back(
PaintLayer::new(layer_id, color::transparent(), stacking_context));
Arc::new(PaintLayer::new(layer_id, color::transparent(), stacking_context)));
// We have started processing layered stacking contexts, so any stacking context that
// we process from now on needs its own layer to ensure proper rendering order.
@ -735,17 +735,18 @@ impl StackingContextLayerCreator {
}
/// Returns the stacking context in the given tree of stacking contexts with a specific layer ID.
pub fn find_stacking_context_with_layer_id(this: &Arc<StackingContext>, layer_id: LayerId)
-> Option<Arc<StackingContext>> {
pub fn find_layer_with_layer_id(this: &Arc<StackingContext>,
layer_id: LayerId)
-> Option<Arc<PaintLayer>> {
for kid in &this.display_list.layered_children {
if let Some(stacking_context) = kid.find_stacking_context_with_layer_id(layer_id) {
return Some(stacking_context);
if let Some(paint_layer) = PaintLayer::find_layer_with_layer_id(&kid, layer_id) {
return Some(paint_layer);
}
}
for kid in &this.display_list.children {
if let Some(stacking_context) = find_stacking_context_with_layer_id(kid, layer_id) {
return Some(stacking_context);
if let Some(paint_layer) = find_layer_with_layer_id(kid, layer_id) {
return Some(paint_layer);
}
}