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auto merge of #1585 : pcwalton/servo/parallel-aux-init, r=metajack

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Brings aux initialization time down to essentially zero (!)

r? @metajack
This commit is contained in:
bors-servo 2014-01-30 13:40:28 -08:00
commit ad2d1e9d87
3 changed files with 19 additions and 4 deletions
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4
src/components/main/layout/context.rs
View file

@ -17,6 +17,7 @@ use std::rt::task::Task;
use geom::size::Size2D;
use gfx::font_context::{FontContext, FontContextInfo};
use script::layout_interface::LayoutChan;
use servo_msg::constellation_msg::ConstellationChan;
use servo_net::local_image_cache::LocalImageCache;
use servo_util::geometry::Au;
@ -40,6 +41,9 @@ pub struct LayoutContext {
/// The set of leaf DOM nodes.
dom_leaf_set: MutexArc<DomLeafSet>,
/// A channel up to the layout task.
layout_chan: LayoutChan,
/// The set of leaf flows.
flow_leaf_set: MutexArc<FlowLeafSet>,

12
src/components/main/layout/layout_task.rs
View file

@ -324,6 +324,7 @@ impl LayoutTask {
constellation_chan: self.constellation_chan.clone(),
dom_leaf_set: self.dom_leaf_set.clone(),
flow_leaf_set: self.flow_leaf_set.clone(),
layout_chan: self.chan.clone(),
font_context_info: font_context_info,
stylist: &*self.stylist,
reflow_root: OpaqueNode::from_layout_node(reflow_root),
@ -549,10 +550,13 @@ impl LayoutTask {
|| {
// Initialize layout data for each node.
//
// FIXME: This is inefficient. We don't need an entire traversal to do this!
profile(time::LayoutAuxInitCategory, self.profiler_chan.clone(), || {
node.initialize_style_for_subtree(self.chan.clone());
});
// FIXME(pcwalton): This is inefficient. We don't need an entire traversal to do this
// in sequential mode!
if self.parallel_traversal.is_none() {
profile(time::LayoutAuxInitCategory, self.profiler_chan.clone(), || {
node.initialize_style_for_subtree(self.chan.clone());
});
}
// Perform CSS selector matching if necessary.
match data.damage.level {

7
src/components/main/layout/parallel.rs
View file

@ -8,6 +8,7 @@
use css::matching::MatchMethods;
use layout::context::LayoutContext;
use layout::extra::LayoutAuxMethods;
use layout::flow::{Flow, FlowLeafSet, PostorderFlowTraversal};
use layout::flow;
use layout::layout_task::{AssignHeightsAndStoreOverflowTraversal, BubbleWidthsTraversal};
@ -130,6 +131,12 @@ fn match_and_cascade_node(unsafe_layout_node: UnsafeLayoutNode,
// Get a real layout node.
let node: LayoutNode = cast::transmute(unsafe_layout_node);
// Initialize layout data.
//
// FIXME(pcwalton): Stop allocating here. Ideally this should just be done by the HTML
// parser.
node.initialize_layout_data(layout_context.layout_chan.clone());
if node.is_element() {
// Perform the CSS selector matching.
let stylist: &Stylist = cast::transmute(layout_context.stylist);