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https://github.com/servo/servo.git
synced 2025-08-03 04:30:10 +01:00
Make parallel DOM traversal and style calculation operate on TNode instead of LayoutNode.
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238a8786de
commit
ebc5eb1b98
4 changed files with 30 additions and 12 deletions
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@ -15,14 +15,13 @@ use gfx::display_list::OpaqueNode;
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use profile_traits::time::{self, TimerMetadata, profile};
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use std::mem;
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use std::sync::atomic::{AtomicIsize, Ordering};
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use style::dom::UnsafeNode;
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use style::dom::{TNode, UnsafeNode};
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use traversal::PostorderNodeMutTraversal;
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use traversal::{AssignBSizesAndStoreOverflow, AssignISizes, BubbleISizes};
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use traversal::{BuildDisplayList, ComputeAbsolutePositions};
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use traversal::{DomTraversal, DomTraversalContext};
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use util::opts;
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use util::workqueue::{WorkQueue, WorkUnit, WorkerProxy};
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use wrapper::LayoutNode;
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const CHUNK_SIZE: usize = 64;
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@ -236,7 +235,7 @@ impl<'a> ParallelPostorderFlowTraversal for BuildDisplayList<'a> {}
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#[inline(always)]
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fn top_down_dom<'ln, N, T>(unsafe_nodes: UnsafeNodeList,
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proxy: &mut WorkerProxy<SharedLayoutContext, UnsafeNodeList>)
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where N: LayoutNode<'ln>, T: DomTraversal<'ln, N> {
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where N: TNode<'ln>, T: DomTraversal<'ln, N> {
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let shared_layout_context = proxy.user_data();
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let layout_context = LayoutContext::new(shared_layout_context);
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let traversal_context = DomTraversalContext {
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@ -294,7 +293,7 @@ fn top_down_dom<'ln, N, T>(unsafe_nodes: UnsafeNodeList,
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fn bottom_up_dom<'ln, N, T>(root: OpaqueNode,
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unsafe_node: UnsafeNode,
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proxy: &mut WorkerProxy<SharedLayoutContext, UnsafeNodeList>)
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where N: LayoutNode<'ln>, T: DomTraversal<'ln, N> {
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where N: TNode<'ln>, T: DomTraversal<'ln, N> {
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let shared_layout_context = proxy.user_data();
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let layout_context = LayoutContext::new(shared_layout_context);
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let traversal_context = DomTraversalContext {
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@ -388,7 +387,7 @@ pub fn traverse_dom_preorder<'ln, N, T>(
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root: N,
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shared_layout_context: &SharedLayoutContext,
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queue: &mut WorkQueue<SharedLayoutContext, WorkQueueData>)
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where N: LayoutNode<'ln>, T: DomTraversal<'ln, N> {
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where N: TNode<'ln>, T: DomTraversal<'ln, N> {
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run_queue_with_custom_work_data_type(queue, |queue| {
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queue.push(WorkUnit {
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fun: top_down_dom::<N, T>,
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@ -15,7 +15,7 @@ use selectors::bloom::BloomFilter;
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use std::cell::RefCell;
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use std::mem;
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use style::context::StyleContext;
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use style::dom::{TRestyleDamage, UnsafeNode};
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use style::dom::{TNode, TRestyleDamage, UnsafeNode};
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use style::matching::{ApplicableDeclarations, ElementMatchMethods, MatchMethods, StyleSharingResult};
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use util::opts;
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use util::tid::tid;
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@ -56,7 +56,7 @@ fn take_task_local_bloom_filter<'ln, N>(parent_node: Option<N>,
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root: OpaqueNode,
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layout_context: &LayoutContext)
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-> Box<BloomFilter>
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where N: LayoutNode<'ln> {
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where N: TNode<'ln> {
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STYLE_BLOOM.with(|style_bloom| {
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match (parent_node, style_bloom.borrow_mut().take()) {
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// Root node. Needs new bloom filter.
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@ -102,7 +102,7 @@ fn put_task_local_bloom_filter(bf: Box<BloomFilter>,
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fn insert_ancestors_into_bloom_filter<'ln, N>(bf: &mut Box<BloomFilter>,
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mut n: N,
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root: OpaqueNode)
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where N: LayoutNode<'ln> {
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where N: TNode<'ln> {
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debug!("[{}] Inserting ancestors.", tid());
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let mut ancestors = 0;
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loop {
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@ -123,7 +123,7 @@ pub struct DomTraversalContext<'a> {
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pub root: OpaqueNode,
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}
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pub trait DomTraversal<'ln, N: LayoutNode<'ln>> {
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pub trait DomTraversal<'ln, N: TNode<'ln>> {
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fn process_preorder<'a>(context: &'a DomTraversalContext<'a>, node: N);
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fn process_postorder<'a>(context: &'a DomTraversalContext<'a>, node: N);
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}
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@ -132,7 +132,7 @@ pub trait DomTraversal<'ln, N: LayoutNode<'ln>> {
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/// This is currently unused, but will be used shortly.
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#[allow(dead_code)]
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pub struct RecalcStyleOnly;
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impl<'ln, N: LayoutNode<'ln>> DomTraversal<'ln, N> for RecalcStyleOnly {
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impl<'ln, N: TNode<'ln>> DomTraversal<'ln, N> for RecalcStyleOnly {
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fn process_preorder<'a>(context: &'a DomTraversalContext<'a>, node: N) { recalc_style_at(context, node); }
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fn process_postorder<'a>(_: &'a DomTraversalContext<'a>, _: N) {}
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}
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@ -153,7 +153,7 @@ pub trait PostorderNodeMutTraversal<'ln, ConcreteThreadSafeLayoutNode: ThreadSaf
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/// layout computation. This computes the styles applied to each node.
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#[inline]
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#[allow(unsafe_code)]
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fn recalc_style_at<'a, 'ln, N: LayoutNode<'ln>> (context: &'a DomTraversalContext<'a>, node: N) {
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fn recalc_style_at<'a, 'ln, N: TNode<'ln>> (context: &'a DomTraversalContext<'a>, node: N) {
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// Initialize layout data.
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//
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// FIXME(pcwalton): Stop allocating here. Ideally this should just be done by the HTML
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@ -171,7 +171,6 @@ fn recalc_style_at<'a, 'ln, N: LayoutNode<'ln>> (context: &'a DomTraversalContex
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// Remove existing CSS styles from nodes whose content has changed (e.g. text changed),
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// to force non-incremental reflow.
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if node.has_changed() {
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let node = node.to_threadsafe();
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node.unstyle();
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}
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@ -275,6 +275,14 @@ impl<'ln> TNode<'ln> for ServoLayoutNode<'ln> {
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self.node.next_sibling_ref().map(|node| self.new_with_this_lifetime(&node))
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}
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}
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fn style(&self) -> Ref<Arc<ComputedValues>> {
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Ref::map(self.borrow_data().unwrap(), |data| data.style.as_ref().unwrap())
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}
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fn unstyle(self) {
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self.mutate_data().unwrap().style = None;
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}
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}
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impl<'ln> LayoutNode<'ln> for ServoLayoutNode<'ln> {
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@ -696,6 +704,8 @@ pub trait ThreadSafeLayoutNode<'ln> : Clone + Copy + Sized {
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/// Returns the style results for the given node. If CSS selector matching
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/// has not yet been performed, fails.
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///
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/// Unlike the version on TNode, this handles pseudo-elements.
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#[inline]
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fn style(&self) -> Ref<Arc<ComputedValues>> {
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Ref::map(self.borrow_layout_data().unwrap(), |data| {
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@ -709,6 +719,8 @@ pub trait ThreadSafeLayoutNode<'ln> : Clone + Copy + Sized {
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}
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/// Removes the style from this node.
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///
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/// Unlike the version on TNode, this handles pseudo-elements.
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fn unstyle(self) {
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let mut data = self.mutate_layout_data().unwrap();
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let style =
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