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https://github.com/servo/servo.git
synced 2025-07-22 23:03:42 +01:00
Remove cached thread local context from LayoutContext
Remove cached thread local context from LayoutContext, use LayoutContext for assign_inline_sizes(), and simplify the parallel flow traversal code.
This commit is contained in:
Pu Xingyu
parent
f07bfaa974
commit
336aa795b4
24 changed files with 331 additions and 428 deletions
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@ -59,7 +59,7 @@ use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
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use ipc_channel::router::ROUTER;
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use layout::animation;
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use layout::construct::ConstructionResult;
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use layout::context::{LayoutContext, SharedLayoutContext};
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use layout::context::LayoutContext;
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use layout::context::heap_size_of_persistent_local_context;
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use layout::display_list_builder::ToGfxColor;
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use layout::flow::{self, Flow, ImmutableFlowUtils, MutableFlowUtils, MutableOwnedFlowUtils};
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@ -506,15 +506,15 @@ impl LayoutThread {
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}
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// Create a layout context for use in building display lists, hit testing, &c.
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fn build_shared_layout_context(&self,
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rw_data: &LayoutThreadData,
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screen_size_changed: bool,
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goal: ReflowGoal)
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-> SharedLayoutContext {
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fn build_layout_context(&self,
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rw_data: &LayoutThreadData,
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screen_size_changed: bool,
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goal: ReflowGoal)
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-> LayoutContext {
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let thread_local_style_context_creation_data =
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ThreadLocalStyleContextCreationInfo::new(self.new_animations_sender.clone());
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SharedLayoutContext {
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LayoutContext {
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style_context: SharedStyleContext {
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viewport_size: self.viewport_size.clone(),
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screen_size_changed: screen_size_changed,
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@ -623,9 +623,9 @@ impl LayoutThread {
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goal: ReflowGoal::ForDisplay,
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page_clip_rect: max_rect(),
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};
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let mut layout_context = self.build_shared_layout_context(&*rw_data,
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false,
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reflow_info.goal);
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let mut layout_context = self.build_layout_context(&*rw_data,
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false,
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reflow_info.goal);
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self.perform_post_style_recalc_layout_passes(&reflow_info,
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None,
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@ -855,9 +855,9 @@ impl LayoutThread {
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/// benchmarked against those two. It is marked `#[inline(never)]` to aid profiling.
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#[inline(never)]
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fn solve_constraints(layout_root: &mut Flow,
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shared_layout_context: &SharedLayoutContext) {
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layout_context: &LayoutContext) {
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let _scope = layout_debug_scope!("solve_constraints");
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sequential::traverse_flow_tree_preorder(layout_root, shared_layout_context);
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sequential::traverse_flow_tree_preorder(layout_root, layout_context);
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}
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/// Performs layout constraint solving in parallel.
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@ -869,7 +869,7 @@ impl LayoutThread {
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layout_root: &mut Flow,
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profiler_metadata: Option<TimerMetadata>,
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time_profiler_chan: time::ProfilerChan,
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shared_layout_context: &SharedLayoutContext) {
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layout_context: &LayoutContext) {
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let _scope = layout_debug_scope!("solve_constraints_parallel");
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// NOTE: this currently computes borders, so any pruning should separate that
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@ -877,7 +877,7 @@ impl LayoutThread {
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parallel::traverse_flow_tree_preorder(layout_root,
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profiler_metadata,
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time_profiler_chan,
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shared_layout_context,
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layout_context,
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traversal);
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}
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@ -888,7 +888,7 @@ impl LayoutThread {
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query_type: Option<&ReflowQueryType>,
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document: Option<&ServoLayoutDocument>,
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layout_root: &mut Flow,
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shared_layout_context: &mut SharedLayoutContext,
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layout_context: &mut LayoutContext,
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rw_data: &mut LayoutThreadData) {
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let writing_mode = flow::base(layout_root).writing_mode;
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let (metadata, sender) = (self.profiler_metadata(), self.time_profiler_chan.clone());
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@ -905,7 +905,7 @@ impl LayoutThread {
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if flow::base(layout_root).restyle_damage.contains(REPOSITION) {
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layout_root.traverse_preorder(&ComputeAbsolutePositions {
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layout_context: shared_layout_context
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layout_context: layout_context
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});
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}
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@ -917,7 +917,7 @@ impl LayoutThread {
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(ReflowGoal::ForDisplay, _) | (ReflowGoal::ForScriptQuery, true) => {
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let mut build_state =
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sequential::build_display_list_for_subtree(layout_root,
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shared_layout_context);
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layout_context);
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debug!("Done building display list.");
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@ -1166,9 +1166,9 @@ impl LayoutThread {
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}
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// Create a layout context for use throughout the following passes.
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let mut shared_layout_context = self.build_shared_layout_context(&*rw_data,
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viewport_size_changed,
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data.reflow_info.goal);
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let mut layout_context = self.build_layout_context(&*rw_data,
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viewport_size_changed,
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data.reflow_info.goal);
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// NB: Type inference falls apart here for some reason, so we need to be very verbose. :-(
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let traversal_driver = if self.parallel_flag && self.parallel_traversal.is_some() {
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@ -1177,7 +1177,7 @@ impl LayoutThread {
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TraversalDriver::Sequential
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};
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let traversal = RecalcStyleAndConstructFlows::new(shared_layout_context, traversal_driver);
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let traversal = RecalcStyleAndConstructFlows::new(layout_context, traversal_driver);
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let dom_depth = Some(0); // This is always the root node.
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let token = {
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let stylist = &<RecalcStyleAndConstructFlows as
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@ -1220,35 +1220,35 @@ impl LayoutThread {
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self.root_flow = self.try_get_layout_root(element.as_node());
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}
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shared_layout_context = traversal.destroy();
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layout_context = traversal.destroy();
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if opts::get().dump_style_tree {
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println!("{:?}", ShowSubtreeDataAndPrimaryValues(element.as_node()));
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}
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if opts::get().dump_rule_tree {
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shared_layout_context.style_context.stylist.rule_tree.dump_stdout();
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layout_context.style_context.stylist.rule_tree.dump_stdout();
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}
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// GC the rule tree if some heuristics are met.
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unsafe { shared_layout_context.style_context.stylist.rule_tree.maybe_gc(); }
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unsafe { layout_context.style_context.stylist.rule_tree.maybe_gc(); }
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// Perform post-style recalculation layout passes.
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self.perform_post_style_recalc_layout_passes(&data.reflow_info,
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Some(&data.query_type),
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Some(&document),
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&mut rw_data,
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&mut shared_layout_context);
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&mut layout_context);
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self.respond_to_query_if_necessary(&data.query_type,
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&mut *rw_data,
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&mut shared_layout_context);
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&mut layout_context);
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}
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fn respond_to_query_if_necessary(&mut self,
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query_type: &ReflowQueryType,
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rw_data: &mut LayoutThreadData,
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shared: &mut SharedLayoutContext) {
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context: &mut LayoutContext) {
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let mut root_flow = match self.root_flow.clone() {
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Some(root_flow) => root_flow,
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None => return,
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@ -1310,7 +1310,7 @@ impl LayoutThread {
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ReflowQueryType::ResolvedStyleQuery(node, ref pseudo, ref property) => {
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let node = unsafe { ServoLayoutNode::new(&node) };
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rw_data.resolved_style_response =
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process_resolved_style_request(shared,
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process_resolved_style_request(context,
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node,
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pseudo,
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property,
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@ -1367,9 +1367,9 @@ impl LayoutThread {
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page_clip_rect: max_rect(),
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};
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let mut layout_context = self.build_shared_layout_context(&*rw_data,
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false,
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reflow_info.goal);
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let mut layout_context = self.build_layout_context(&*rw_data,
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false,
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reflow_info.goal);
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if let Some(mut root_flow) = self.root_flow.clone() {
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// Perform an abbreviated style recalc that operates without access to the DOM.
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@ -1400,9 +1400,9 @@ impl LayoutThread {
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page_clip_rect: max_rect(),
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};
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let mut layout_context = self.build_shared_layout_context(&*rw_data,
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false,
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reflow_info.goal);
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let mut layout_context = self.build_layout_context(&*rw_data,
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false,
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reflow_info.goal);
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// No need to do a style recalc here.
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if self.root_flow.is_none() {
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@ -1420,7 +1420,7 @@ impl LayoutThread {
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query_type: Option<&ReflowQueryType>,
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document: Option<&ServoLayoutDocument>,
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rw_data: &mut LayoutThreadData,
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shared: &mut SharedLayoutContext) {
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context: &mut LayoutContext) {
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if let Some(mut root_flow) = self.root_flow.clone() {
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// Kick off animations if any were triggered, expire completed ones.
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animation::update_animation_state(&self.constellation_chan,
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@ -1452,7 +1452,7 @@ impl LayoutThread {
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profile(time::ProfilerCategory::LayoutGeneratedContent,
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self.profiler_metadata(),
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self.time_profiler_chan.clone(),
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|| sequential::resolve_generated_content(FlowRef::deref_mut(&mut root_flow), &shared));
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|| sequential::resolve_generated_content(FlowRef::deref_mut(&mut root_flow), &context));
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// Guess float placement.
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profile(time::ProfilerCategory::LayoutFloatPlacementSpeculation,
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@ -1475,10 +1475,10 @@ impl LayoutThread {
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FlowRef::deref_mut(&mut root_flow),
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profiler_metadata,
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self.time_profiler_chan.clone(),
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&*shared);
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&*context);
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} else {
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//Sequential mode
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LayoutThread::solve_constraints(FlowRef::deref_mut(&mut root_flow), &shared)
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LayoutThread::solve_constraints(FlowRef::deref_mut(&mut root_flow), &context)
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}
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});
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}
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@ -1487,8 +1487,7 @@ impl LayoutThread {
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self.profiler_metadata(),
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self.time_profiler_chan.clone(),
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|| {
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let context = LayoutContext::new(&shared);
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sequential::store_overflow(&context,
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sequential::store_overflow(context,
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FlowRef::deref_mut(&mut root_flow) as &mut Flow);
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});
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@ -1496,7 +1495,7 @@ impl LayoutThread {
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query_type,
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document,
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rw_data,
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shared);
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context);
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}
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}
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@ -1505,7 +1504,7 @@ impl LayoutThread {
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query_type: Option<&ReflowQueryType>,
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document: Option<&ServoLayoutDocument>,
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rw_data: &mut LayoutThreadData,
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layout_context: &mut SharedLayoutContext) {
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layout_context: &mut LayoutContext) {
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// Build the display list if necessary, and send it to the painter.
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if let Some(mut root_flow) = self.root_flow.clone() {
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self.compute_abs_pos_and_build_display_list(data,
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