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chromium / chromium / src / ab768838b0282684fd4cf2b749f0c9801ab3e088 / . / cc / trees / layer_tree_host.cc
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// Copyright 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/trees/layer_tree_host.h"
#include <stddef.h>
#include <stdint.h>
#include <algorithm>
#include <memory>
#include <string>
#include <unordered_map>
#include "base/atomic_sequence_num.h"
#include "base/auto_reset.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/containers/adapters.h"
#include "base/containers/contains.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/metrics/histogram_functions.h"
#include "base/metrics/histogram_macros.h"
#include "base/numerics/safe_math.h"
#include "base/single_thread_task_runner.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/timer/elapsed_timer.h"
#include "base/trace_event/trace_event.h"
#include "base/trace_event/traced_value.h"
#include "build/build_config.h"
#include "cc/base/devtools_instrumentation.h"
#include "cc/base/features.h"
#include "cc/base/histograms.h"
#include "cc/base/math_util.h"
#include "cc/debug/rendering_stats_instrumentation.h"
#include "cc/document_transition/document_transition_request.h"
#include "cc/input/layer_selection_bound.h"
#include "cc/input/overscroll_behavior.h"
#include "cc/input/page_scale_animation.h"
#include "cc/layers/heads_up_display_layer.h"
#include "cc/layers/heads_up_display_layer_impl.h"
#include "cc/layers/layer.h"
#include "cc/layers/painted_scrollbar_layer.h"
#include "cc/metrics/ukm_smoothness_data.h"
#include "cc/paint/paint_worklet_layer_painter.h"
#include "cc/resources/ui_resource_manager.h"
#include "cc/tiles/raster_dark_mode_filter.h"
#include "cc/trees/clip_node.h"
#include "cc/trees/compositor_commit_data.h"
#include "cc/trees/draw_property_utils.h"
#include "cc/trees/effect_node.h"
#include "cc/trees/layer_tree_host_client.h"
#include "cc/trees/layer_tree_host_impl.h"
#include "cc/trees/layer_tree_impl.h"
#include "cc/trees/mutator_host.h"
#include "cc/trees/paint_holding_reason.h"
#include "cc/trees/property_tree_builder.h"
#include "cc/trees/proxy_main.h"
#include "cc/trees/render_frame_metadata_observer.h"
#include "cc/trees/scroll_node.h"
#include "cc/trees/single_thread_proxy.h"
#include "cc/trees/swap_promise_manager.h"
#include "cc/trees/transform_node.h"
#include "cc/trees/tree_synchronizer.h"
#include "cc/trees/ukm_manager.h"
#include "components/viz/common/features.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "services/tracing/public/cpp/perfetto/flow_event_utils.h"
#include "services/tracing/public/cpp/perfetto/macros.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/gfx/geometry/vector2d_conversions.h"
#include "ui/gfx/presentation_feedback.h"
namespace {
static base::AtomicSequenceNumber s_layer_tree_host_sequence_number;
static base::AtomicSequenceNumber s_image_decode_sequence_number;
} // namespace
namespace cc {
namespace {
bool AreEmbedTokensEqual(const viz::LocalSurfaceId& lsi1,
const viz::LocalSurfaceId& lsi2) {
return lsi1.embed_token() == lsi2.embed_token();
}
bool AreParentSequencesEqual(const viz::LocalSurfaceId& lsi1,
const viz::LocalSurfaceId& lsi2) {
return lsi1.parent_sequence_number() == lsi2.parent_sequence_number();
}
} // namespace
LayerTreeHost::InitParams::InitParams() = default;
LayerTreeHost::InitParams::~InitParams() = default;
LayerTreeHost::InitParams::InitParams(InitParams&&) = default;
LayerTreeHost::InitParams& LayerTreeHost::InitParams::operator=(InitParams&&) =
default;
LayerTreeHost::ScrollAnimationState::ScrollAnimationState() = default;
LayerTreeHost::ScrollAnimationState::~ScrollAnimationState() = default;
std::unique_ptr<LayerTreeHost> LayerTreeHost::CreateThreaded(
scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
InitParams params) {
DCHECK(params.settings);
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner =
params.main_task_runner;
DCHECK(main_task_runner);
DCHECK(impl_task_runner);
auto layer_tree_host = base::WrapUnique(
new LayerTreeHost(std::move(params), CompositorMode::THREADED));
layer_tree_host->InitializeThreaded(std::move(main_task_runner),
std::move(impl_task_runner));
return layer_tree_host;
}
std::unique_ptr<LayerTreeHost> LayerTreeHost::CreateSingleThreaded(
LayerTreeHostSingleThreadClient* single_thread_client,
InitParams params) {
DCHECK(params.settings);
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner =
params.main_task_runner;
auto layer_tree_host = base::WrapUnique(
new LayerTreeHost(std::move(params), CompositorMode::SINGLE_THREADED));
layer_tree_host->InitializeSingleThreaded(single_thread_client,
std::move(main_task_runner));
return layer_tree_host;
}
LayerTreeHost::LayerTreeHost(InitParams params, CompositorMode mode)
: micro_benchmark_controller_(this),
image_worker_task_runner_(std::move(params.image_worker_task_runner)),
ukm_recorder_factory_(std::move(params.ukm_recorder_factory)),
compositor_mode_(mode),
ui_resource_manager_(std::make_unique<UIResourceManager>()),
client_(params.client),
scheduling_client_(params.scheduling_client),
rendering_stats_instrumentation_(RenderingStatsInstrumentation::Create()),
settings_(*params.settings),
debug_state_(settings_.initial_debug_state),
id_(s_layer_tree_host_sequence_number.GetNext() + 1),
task_graph_runner_(params.task_graph_runner),
main_thread_pipeline_(params.main_thread_pipeline),
compositor_thread_pipeline_(params.compositor_thread_pipeline),
event_listener_properties_(),
mutator_host_(params.mutator_host),
dark_mode_filter_(params.dark_mode_filter) {
DCHECK(task_graph_runner_);
DCHECK(!settings_.enable_checker_imaging || image_worker_task_runner_);
mutator_host_->SetMutatorHostClient(this);
rendering_stats_instrumentation_->set_record_rendering_stats(
debug_state_.RecordRenderingStats());
}
void LayerTreeHost::InitializeThreaded(
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
task_runner_provider_ =
TaskRunnerProvider::Create(main_task_runner, impl_task_runner);
std::unique_ptr<ProxyMain> proxy_main =
std::make_unique<ProxyMain>(this, task_runner_provider_.get());
InitializeProxy(std::move(proxy_main));
}
void LayerTreeHost::InitializeSingleThreaded(
LayerTreeHostSingleThreadClient* single_thread_client,
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner) {
task_runner_provider_ = TaskRunnerProvider::Create(main_task_runner, nullptr);
InitializeProxy(SingleThreadProxy::Create(this, single_thread_client,
task_runner_provider_.get()));
}
void LayerTreeHost::InitializeForTesting(
std::unique_ptr<TaskRunnerProvider> task_runner_provider,
std::unique_ptr<Proxy> proxy_for_testing) {
task_runner_provider_ = std::move(task_runner_provider);
InitializeProxy(std::move(proxy_for_testing));
}
void LayerTreeHost::SetTaskRunnerProviderForTesting(
std::unique_ptr<TaskRunnerProvider> task_runner_provider) {
DCHECK(!task_runner_provider_);
task_runner_provider_ = std::move(task_runner_provider);
}
void LayerTreeHost::SetUIResourceManagerForTesting(
std::unique_ptr<UIResourceManager> ui_resource_manager) {
ui_resource_manager_ = std::move(ui_resource_manager);
}
void LayerTreeHost::InitializeProxy(std::unique_ptr<Proxy> proxy) {
TRACE_EVENT0("cc", "LayerTreeHost::InitializeForReal");
DCHECK(task_runner_provider_);
proxy_ = std::move(proxy);
proxy_->Start();
UpdateDeferMainFrameUpdateInternal();
}
LayerTreeHost::~LayerTreeHost() {
// Track when we're inside a main frame to see if compositor is being
// destroyed midway which causes a crash. crbug.com/895883
CHECK(!inside_main_frame_);
TRACE_EVENT0("cc", "LayerTreeHost::~LayerTreeHost");
// Clear any references into the LayerTreeHost.
mutator_host_->SetMutatorHostClient(nullptr);
if (root_layer_) {
root_layer_->SetLayerTreeHost(nullptr);
// The root layer must be destroyed before the layer tree. We've made a
// contract with our animation controllers that the animation_host will
// outlive them, and we must make good.
root_layer_ = nullptr;
}
// Fail any pending image decodes.
for (auto& pair : pending_image_decodes_)
std::move(pair.second).Run(false);
if (proxy_) {
DCHECK(task_runner_provider_->IsMainThread());
proxy_->Stop();
// Proxy must be destroyed before the Task Runner Provider.
proxy_ = nullptr;
}
}
int LayerTreeHost::GetId() const {
return id_;
}
int LayerTreeHost::SourceFrameNumber() const {
return source_frame_number_;
}
UIResourceManager* LayerTreeHost::GetUIResourceManager() const {
return ui_resource_manager_.get();
}
TaskRunnerProvider* LayerTreeHost::GetTaskRunnerProvider() const {
return task_runner_provider_.get();
}
SwapPromiseManager* LayerTreeHost::GetSwapPromiseManager() {
return &swap_promise_manager_;
}
std::unique_ptr<EventsMetricsManager::ScopedMonitor>
LayerTreeHost::GetScopedEventMetricsMonitor(
EventsMetricsManager::ScopedMonitor::DoneCallback done_callback) {
return events_metrics_manager_.GetScopedMonitor(std::move(done_callback));
}
void LayerTreeHost::ClearEventsMetrics() {
// Take events metrics and drop them.
events_metrics_manager_.TakeSavedEventsMetrics();
}
const LayerTreeSettings& LayerTreeHost::GetSettings() const {
return settings_;
}
void LayerTreeHost::QueueSwapPromise(
std::unique_ptr<SwapPromise> swap_promise) {
swap_promise_manager_.QueueSwapPromise(std::move(swap_promise));
}
void LayerTreeHost::WillBeginMainFrame() {
inside_main_frame_ = true;
devtools_instrumentation::WillBeginMainThreadFrame(GetId(),
SourceFrameNumber());
client_->WillBeginMainFrame();
}
void LayerTreeHost::DidBeginMainFrame() {
inside_main_frame_ = false;
client_->DidBeginMainFrame();
}
void LayerTreeHost::BeginMainFrameNotExpectedSoon() {
client_->BeginMainFrameNotExpectedSoon();
}
void LayerTreeHost::BeginMainFrameNotExpectedUntil(base::TimeTicks time) {
client_->BeginMainFrameNotExpectedUntil(time);
}
void LayerTreeHost::BeginMainFrame(const viz::BeginFrameArgs& args) {
client_->BeginMainFrame(args);
}
const LayerTreeDebugState& LayerTreeHost::GetDebugState() const {
return debug_state_;
}
void LayerTreeHost::RequestMainFrameUpdate(bool report_cc_metrics) {
client_->UpdateLayerTreeHost();
if (report_cc_metrics)
begin_main_frame_metrics_ = client_->GetBeginMainFrameMetrics();
else
begin_main_frame_metrics_.reset();
}
// This function commits the LayerTreeHost to an impl tree. When modifying
// this function, keep in mind that the function *runs* on the impl thread! Any
// code that is logically a main thread operation, e.g. deletion of a Layer,
// should be delayed until the LayerTreeHost::CommitComplete, which will run
// after the commit, but on the main thread.
void LayerTreeHost::FinishCommitOnImplThread(LayerTreeHostImpl* host_impl) {
DCHECK(task_runner_provider_->IsImplThread());
TRACE_EVENT0("cc,benchmark", "LayerTreeHost::FinishCommitOnImplThread");
LayerTreeImpl* sync_tree = host_impl->sync_tree();
sync_tree->lifecycle().AdvanceTo(LayerTreeLifecycle::kBeginningSync);
if (next_commit_forces_redraw_) {
sync_tree->ForceRedrawNextActivation();
next_commit_forces_redraw_ = false;
}
if (next_commit_forces_recalculate_raster_scales_) {
sync_tree->ForceRecalculateRasterScales();
next_commit_forces_recalculate_raster_scales_ = false;
}
sync_tree->set_source_frame_number(SourceFrameNumber());
if (!pending_presentation_time_callbacks_.empty()) {
sync_tree->AddPresentationCallbacks(
std::move(pending_presentation_time_callbacks_));
pending_presentation_time_callbacks_.clear();
}
if (needs_full_tree_sync_)
TreeSynchronizer::SynchronizeTrees(root_layer(), sync_tree);
if (clear_caches_on_next_commit_) {
clear_caches_on_next_commit_ = false;
proxy_->ClearHistory();
host_impl->ClearCaches();
}
{
TRACE_EVENT0("cc", "LayerTreeHost::PushProperties");
PushPropertyTreesTo(sync_tree);
sync_tree->lifecycle().AdvanceTo(LayerTreeLifecycle::kSyncedPropertyTrees);
PushSurfaceRangesTo(sync_tree);
TreeSynchronizer::PushLayerProperties(this, sync_tree);
sync_tree->lifecycle().AdvanceTo(
LayerTreeLifecycle::kSyncedLayerProperties);
PushLayerTreePropertiesTo(sync_tree);
PushLayerTreeHostPropertiesTo(host_impl);
sync_tree->PassSwapPromises(swap_promise_manager_.TakeSwapPromises());
sync_tree->AppendEventsMetricsFromMainThread(
events_metrics_manager_.TakeSavedEventsMetrics());
sync_tree->set_ui_resource_request_queue(
ui_resource_manager_->TakeUIResourcesRequests());
// This must happen after synchronizing property trees and after pushing
// properties, which updates the clobber_active_value flag.
// TODO(pdr): Enforce this comment with DCHECKS and a lifecycle state.
sync_tree->property_trees()->scroll_tree.PushScrollUpdatesFromMainThread(
property_trees(), sync_tree, settings_.commit_fractional_scroll_deltas);
// This must happen after synchronizing property trees and after push
// properties, which updates property tree indices, but before animation
// host pushes properties as animation host push properties can change
// KeyframeModel::InEffect and we want the old InEffect value for updating
// property tree scrolling and animation.
// TODO(pdr): Enforce this comment with DCHECKS and a lifecycle state.
sync_tree->UpdatePropertyTreeAnimationFromMainThread();
TRACE_EVENT0("cc", "LayerTreeHost::AnimationHost::PushProperties");
DCHECK(host_impl->mutator_host());
mutator_host_->PushPropertiesTo(host_impl->mutator_host());
MoveChangeTrackingToLayers(sync_tree);
// Updating elements affects whether animations are in effect based on their
// properties so run after pushing updated animation properties.
host_impl->UpdateElements(ElementListType::PENDING);
sync_tree->lifecycle().AdvanceTo(LayerTreeLifecycle::kNotSyncing);
}
// Transfer image decode requests to the impl thread.
for (auto& request : queued_image_decodes_) {
int next_id = s_image_decode_sequence_number.GetNext();
pending_image_decodes_[next_id] = std::move(request.second);
host_impl->QueueImageDecode(next_id, std::move(request.first));
}
queued_image_decodes_.clear();
micro_benchmark_controller_.ScheduleImplBenchmarks(host_impl);
property_trees_.ResetAllChangeTracking();
// Dump property trees and layers if run with:
// --vmodule=layer_tree_host=3
if (VLOG_IS_ON(3)) {
const char* client_name = GetClientNameForMetrics();
if (!client_name)
client_name = "<unknown client>";
VLOG(3) << "After finishing (" << client_name
<< ") commit on impl, the sync tree:"
<< "\nproperty_trees:\n"
<< sync_tree->property_trees()->ToString() << "\n"
<< "cc::LayerImpls:\n"
<< sync_tree->LayerListAsJson();
}
}
void LayerTreeHost::MoveChangeTrackingToLayers(LayerTreeImpl* tree_impl) {
// This is only true for single-thread compositing (i.e. not via Blink).
bool property_trees_changed_on_active_tree =
tree_impl->IsActiveTree() && tree_impl->property_trees()->changed;
if (property_trees_changed_on_active_tree) {
// Property trees may store damage status. We preserve the sync tree damage
// status by pushing the damage status from sync tree property trees to main
// thread property trees or by moving it onto the layers.
if (root_layer_) {
if (property_trees_.sequence_number ==
tree_impl->property_trees()->sequence_number)
tree_impl->property_trees()->PushChangeTrackingTo(&property_trees_);
else
tree_impl->MoveChangeTrackingToLayers();
}
} else {
tree_impl->MoveChangeTrackingToLayers();
}
}
void LayerTreeHost::ImageDecodesFinished(
const std::vector<std::pair<int, bool>>& results) {
// Issue stored callbacks and remove them from the pending list.
for (const auto& pair : results) {
auto it = pending_image_decodes_.find(pair.first);
DCHECK(it != pending_image_decodes_.end());
std::move(it->second).Run(pair.second);
pending_image_decodes_.erase(it);
}
}
void LayerTreeHost::PushPropertyTreesTo(LayerTreeImpl* tree_impl) {
bool property_trees_changed_on_active_tree =
tree_impl->IsActiveTree() && tree_impl->property_trees()->changed;
// Property trees may store damage status. We preserve the sync tree damage
// status by pushing the damage status from sync tree property trees to main
// thread property trees or by moving it onto the layers.
if (root_layer_ && property_trees_changed_on_active_tree) {
if (property_trees_.sequence_number ==
tree_impl->property_trees()->sequence_number)
tree_impl->property_trees()->PushChangeTrackingTo(&property_trees_);
else
tree_impl->MoveChangeTrackingToLayers();
}
tree_impl->SetPropertyTrees(&property_trees_);
}
void LayerTreeHost::WillCommit() {
swap_promise_manager_.WillCommit();
client_->WillCommit();
}
void LayerTreeHost::UpdateDeferMainFrameUpdateInternal() {
proxy_->SetDeferMainFrameUpdate(defer_main_frame_update_count_ > 0 ||
!local_surface_id_from_parent_.is_valid());
}
bool LayerTreeHost::IsUsingLayerLists() const {
return settings_.use_layer_lists;
}
void LayerTreeHost::CommitComplete() {
source_frame_number_++;
client_->DidCommit(impl_commit_start_time_);
impl_commit_start_time_ = base::TimeTicks();
if (did_complete_scale_animation_) {
client_->DidCompletePageScaleAnimation();
did_complete_scale_animation_ = false;
}
}
void LayerTreeHost::NotifyTransitionRequestsFinished(
const std::vector<uint32_t>& sequence_ids) {
// TODO(vmpstr): This might also be a good spot to expire long standing
// requests if they were not finished.
for (auto& sequence_id : sequence_ids) {
auto it = document_transition_callbacks_.find(sequence_id);
if (it == document_transition_callbacks_.end())
continue;
std::move(it->second).Run();
document_transition_callbacks_.erase(it);
}
}
void LayerTreeHost::SetLayerTreeFrameSink(
std::unique_ptr<LayerTreeFrameSink> surface) {
TRACE_EVENT0("cc", "LayerTreeHost::SetLayerTreeFrameSink");
DCHECK(surface);
DCHECK(!new_layer_tree_frame_sink_);
new_layer_tree_frame_sink_ = std::move(surface);
proxy_->SetLayerTreeFrameSink(new_layer_tree_frame_sink_.get());
}
std::unique_ptr<LayerTreeFrameSink> LayerTreeHost::ReleaseLayerTreeFrameSink() {
DCHECK(!visible_);
DidLoseLayerTreeFrameSink();
proxy_->ReleaseLayerTreeFrameSink();
return std::move(current_layer_tree_frame_sink_);
}
void LayerTreeHost::RequestNewLayerTreeFrameSink() {
client_->RequestNewLayerTreeFrameSink();
}
void LayerTreeHost::DidInitializeLayerTreeFrameSink() {
DCHECK(new_layer_tree_frame_sink_);
current_layer_tree_frame_sink_ = std::move(new_layer_tree_frame_sink_);
client_->DidInitializeLayerTreeFrameSink();
}
void LayerTreeHost::DidFailToInitializeLayerTreeFrameSink() {
DCHECK(new_layer_tree_frame_sink_);
// Note: It is safe to drop all output surface references here as
// LayerTreeHostImpl will not keep a pointer to either the old or
// new LayerTreeFrameSink after failing to initialize the new one.
current_layer_tree_frame_sink_ = nullptr;
new_layer_tree_frame_sink_ = nullptr;
client_->DidFailToInitializeLayerTreeFrameSink();
}
std::unique_ptr<LayerTreeHostImpl> LayerTreeHost::CreateLayerTreeHostImpl(
LayerTreeHostImplClient* client) {
DCHECK(task_runner_provider_->IsImplThread());
std::unique_ptr<MutatorHost> mutator_host_impl =
mutator_host_->CreateImplInstance();
if (!settings_.scroll_animation_duration_for_testing.is_zero()) {
mutator_host_->SetScrollAnimationDurationForTesting(
settings_.scroll_animation_duration_for_testing);
}
std::unique_ptr<LayerTreeHostImpl> host_impl = LayerTreeHostImpl::Create(
settings_, client, task_runner_provider_.get(),
rendering_stats_instrumentation_.get(), task_graph_runner_,
std::move(mutator_host_impl), dark_mode_filter_, id_,
std::move(image_worker_task_runner_), scheduling_client_);
if (ukm_recorder_factory_) {
host_impl->InitializeUkm(ukm_recorder_factory_->CreateRecorder());
ukm_recorder_factory_.reset();
}
task_graph_runner_ = nullptr;
dark_mode_filter_ = nullptr;
compositor_delegate_weak_ptr_ = host_impl->AsWeakPtr();
return host_impl;
}
void LayerTreeHost::DidLoseLayerTreeFrameSink() {
TRACE_EVENT0("cc", "LayerTreeHost::DidLoseLayerTreeFrameSink");
DCHECK(task_runner_provider_->IsMainThread());
SetNeedsCommit();
}
ScopedDeferMainFrameUpdate::ScopedDeferMainFrameUpdate(LayerTreeHost* host)
: host_(host->defer_main_frame_update_weak_ptr_factory_.GetWeakPtr()) {
host->defer_main_frame_update_count_++;
host->UpdateDeferMainFrameUpdateInternal();
}
ScopedDeferMainFrameUpdate::~ScopedDeferMainFrameUpdate() {
LayerTreeHost* host = host_.get();
if (host) {
DCHECK_GT(host->defer_main_frame_update_count_, 0u);
if (--host->defer_main_frame_update_count_ == 0)
host->UpdateDeferMainFrameUpdateInternal();
}
}
std::unique_ptr<ScopedDeferMainFrameUpdate>
LayerTreeHost::DeferMainFrameUpdate() {
return std::make_unique<ScopedDeferMainFrameUpdate>(this);
}
void LayerTreeHost::OnDeferMainFrameUpdatesChanged(bool defer_status) {
client_->OnDeferMainFrameUpdatesChanged(defer_status);
}
bool LayerTreeHost::StartDeferringCommits(base::TimeDelta timeout,
PaintHoldingReason reason) {
return proxy_->StartDeferringCommits(timeout, reason);
}
void LayerTreeHost::StopDeferringCommits(PaintHoldingCommitTrigger trigger) {
proxy_->StopDeferringCommits(trigger);
}
bool LayerTreeHost::IsDeferringCommits() const {
return proxy_->IsDeferringCommits();
}
void LayerTreeHost::OnDeferCommitsChanged(bool defer_status,
PaintHoldingReason reason) {
client_->OnDeferCommitsChanged(defer_status, reason);
}
DISABLE_CFI_PERF
void LayerTreeHost::SetNeedsAnimate() {
proxy_->SetNeedsAnimate();
swap_promise_manager_.NotifySwapPromiseMonitorsOfSetNeedsCommit();
events_metrics_manager_.SaveActiveEventMetrics();
}
void LayerTreeHost::SetNeedsAnimateIfNotInsideMainFrame() {
if (!inside_main_frame_)
SetNeedsAnimate();
}
DISABLE_CFI_PERF
void LayerTreeHost::SetNeedsUpdateLayers() {
proxy_->SetNeedsUpdateLayers();
swap_promise_manager_.NotifySwapPromiseMonitorsOfSetNeedsCommit();
events_metrics_manager_.SaveActiveEventMetrics();
}
void LayerTreeHost::SetNeedsCommit() {
proxy_->SetNeedsCommit();
swap_promise_manager_.NotifySwapPromiseMonitorsOfSetNeedsCommit();
events_metrics_manager_.SaveActiveEventMetrics();
}
void LayerTreeHost::SetTargetLocalSurfaceId(
const viz::LocalSurfaceId& target_local_surface_id) {
proxy_->SetTargetLocalSurfaceId(target_local_surface_id);
}
bool LayerTreeHost::RequestedMainFramePendingForTesting() const {
return proxy_->RequestedAnimatePending();
}
void LayerTreeHost::SetNeedsRecalculateRasterScales() {
next_commit_forces_recalculate_raster_scales_ = true;
proxy_->SetNeedsCommit();
}
void LayerTreeHost::SetNeedsRedrawRect(const gfx::Rect& damage_rect) {
proxy_->SetNeedsRedraw(damage_rect);
}
bool LayerTreeHost::CommitRequested() const {
return proxy_->CommitRequested();
}
void LayerTreeHost::SetNextCommitWaitsForActivation() {
proxy_->SetNextCommitWaitsForActivation();
}
void LayerTreeHost::SetNeedsCommitWithForcedRedraw() {
next_commit_forces_redraw_ = true;
// This method is used by tests to ensure a commit before grabbing a screen
// shot or processing input, so do not defer the commit.
StopDeferringCommits(PaintHoldingCommitTrigger::kFeatureDisabled);
proxy_->SetNeedsCommit();
}
void LayerTreeHost::SetDebugState(const LayerTreeDebugState& new_debug_state) {
if (LayerTreeDebugState::Equal(debug_state_, new_debug_state))
return;
debug_state_ = new_debug_state;
rendering_stats_instrumentation_->set_record_rendering_stats(
debug_state_.RecordRenderingStats());
SetNeedsCommit();
}
void LayerTreeHost::ApplyPageScaleDeltaFromImplSide(float page_scale_delta) {
DCHECK(CommitRequested());
if (page_scale_delta == 1.f)
return;
float page_scale = page_scale_factor_ * page_scale_delta;
SetPageScaleFromImplSide(page_scale);
}
void LayerTreeHost::SetVisible(bool visible) {
if (visible_ == visible)
return;
visible_ = visible;
proxy_->SetVisible(visible);
}
bool LayerTreeHost::IsVisible() const {
return visible_;
}
void LayerTreeHost::LayoutAndUpdateLayers() {
DCHECK(IsSingleThreaded());
// This function is only valid when not using the scheduler.
DCHECK(!settings_.single_thread_proxy_scheduler);
RequestMainFrameUpdate(false);
UpdateLayers();
}
void LayerTreeHost::CompositeForTest(base::TimeTicks frame_begin_time,
bool raster) {
DCHECK(IsSingleThreaded());
// This function is only valid when not using the scheduler.
DCHECK(!settings_.single_thread_proxy_scheduler);
SingleThreadProxy* proxy = static_cast<SingleThreadProxy*>(proxy_.get());
proxy->CompositeImmediatelyForTest(frame_begin_time, raster); // IN-TEST
}
bool LayerTreeHost::UpdateLayers() {
if (!root_layer()) {
property_trees_.clear();
viewport_property_ids_ = ViewportPropertyIds();
return false;
}
DCHECK(!root_layer()->parent());
base::ElapsedTimer timer;
client_->WillUpdateLayers();
bool result = DoUpdateLayers();
client_->DidUpdateLayers();
micro_benchmark_controller_.DidUpdateLayers();
base::TimeDelta elapsed_delta = timer.Elapsed();
if (begin_main_frame_metrics_)
begin_main_frame_metrics_->update_layers = elapsed_delta;
if (const char* client_name = GetClientNameForMetrics()) {
auto elapsed = elapsed_delta.InMicroseconds();
std::string histogram_name =
base::StringPrintf("Compositing.%s.LayersUpdateTime", client_name);
base::UmaHistogramCounts10M(histogram_name, elapsed);
}
return result;
}
void LayerTreeHost::DidPresentCompositorFrame(
uint32_t frame_token,
std::vector<PresentationTimeCallbackBuffer::MainCallback> callbacks,
const gfx::PresentationFeedback& feedback) {
for (auto& callback : callbacks)
std::move(callback).Run(feedback);
client_->DidPresentCompositorFrame(frame_token, feedback);
}
void LayerTreeHost::DidCompletePageScaleAnimation() {
did_complete_scale_animation_ = true;
}
void LayerTreeHost::RecordGpuRasterizationHistogram(
const LayerTreeHostImpl* host_impl) {
// Gpu rasterization is only supported for Renderer compositors.
// Checking for IsSingleThreaded() to exclude Browser compositors.
if (gpu_rasterization_histogram_recorded_ || IsSingleThreaded())
return;
bool gpu_rasterization_enabled = false;
if (host_impl->layer_tree_frame_sink()) {
viz::ContextProvider* compositor_context_provider =
host_impl->layer_tree_frame_sink()->context_provider();
if (compositor_context_provider) {
gpu_rasterization_enabled =
compositor_context_provider->ContextCapabilities().gpu_rasterization;
}
}
// Record how widely gpu rasterization is enabled.
// This number takes device/gpu allowlist/denylist into account.
// Note that we do not consider the forced gpu rasterization mode, which is
// mostly used for debugging purposes.
UMA_HISTOGRAM_BOOLEAN("Renderer4.GpuRasterizationEnabled",
gpu_rasterization_enabled);
gpu_rasterization_histogram_recorded_ = true;
}
std::string LayerTreeHost::LayersAsString() const {
std::string layers;
for (const auto* layer : *this)
layers += layer->ToString() + "\n";
return layers;
}
bool LayerTreeHost::CaptureContent(std::vector<NodeInfo>* content) {
if (visual_device_viewport_intersection_rect_.IsEmpty())
return false;
gfx::Rect rect =
gfx::Rect(visual_device_viewport_intersection_rect_.width(),
visual_device_viewport_intersection_rect_.height());
for (auto* layer : *this) {
// Normally, the node won't be drawn in multiple layers, even it is, such as
// text strokes, the visual rect don't have too much different.
layer->CaptureContent(rect, content);
}
return true;
}
void LayerTreeHost::DidObserveFirstScrollDelay(
base::TimeDelta first_scroll_delay,
base::TimeTicks first_scroll_timestamp) {
client_->DidObserveFirstScrollDelay(first_scroll_delay,
first_scroll_timestamp);
}
void LayerTreeHost::AddDocumentTransitionRequest(
std::unique_ptr<DocumentTransitionRequest> request) {
document_transition_requests_.push_back(std::move(request));
SetNeedsCommit();
}
bool LayerTreeHost::DoUpdateLayers() {
TRACE_EVENT1("cc,benchmark", "LayerTreeHost::DoUpdateLayers",
"source_frame_number", SourceFrameNumber());
UpdateHudLayer(debug_state_.ShouldCreateHudLayer());
// In layer lists mode, the cc property trees are built directly and do not
// need to be built here.
if (!IsUsingLayerLists()) {
TRACE_EVENT0("cc", "LayerTreeHost::UpdateLayers::BuildPropertyTrees");
PropertyTreeBuilder::BuildPropertyTrees(this);
TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("cc.debug"),
"LayerTreeHost::UpdateLayers_BuiltPropertyTrees",
TRACE_EVENT_SCOPE_THREAD, "property_trees",
property_trees_.AsTracedValue());
} else {
TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("cc.debug"),
"LayerTreeHost::UpdateLayers_ReceivedPropertyTrees",
TRACE_EVENT_SCOPE_THREAD, "property_trees",
property_trees_.AsTracedValue());
// The HUD layer is managed outside the layer list sent to LayerTreeHost
// and needs to have its property tree state set.
if (hud_layer_ && root_layer_.get()) {
hud_layer_->SetTransformTreeIndex(root_layer_->transform_tree_index());
hud_layer_->SetEffectTreeIndex(root_layer_->effect_tree_index());
hud_layer_->SetClipTreeIndex(root_layer_->clip_tree_index());
hud_layer_->SetScrollTreeIndex(root_layer_->scroll_tree_index());
hud_layer_->set_property_tree_sequence_number(
root_layer_->property_tree_sequence_number());
}
}
#if DCHECK_IS_ON()
// Ensure property tree nodes were created for all layers. When using layer
// lists, this can fail if blink doesn't setup layers or nodes correctly in
// |PaintArtifactCompositor|. When not using layer lists, this can fail if
// |PropertyTreeBuilder::BuildPropertyTrees| fails to create property tree
// nodes.
for (auto* layer : *this) {
DCHECK(property_trees_.effect_tree.Node(layer->effect_tree_index()));
DCHECK(property_trees_.transform_tree.Node(layer->transform_tree_index()));
DCHECK(property_trees_.clip_tree.Node(layer->clip_tree_index()));
DCHECK(property_trees_.scroll_tree.Node(layer->scroll_tree_index()));
}
#else
// This is a quick sanity check for readiness of paint properties.
// TODO(crbug.com/913464): This is to help analysis of crashes of the bug.
// Remove this CHECK when we close the bug.
CHECK(property_trees_.effect_tree.Node(root_layer_->effect_tree_index()));
#endif
draw_property_utils::UpdatePropertyTrees(this);
LayerList update_layer_list;
draw_property_utils::FindLayersThatNeedUpdates(this, &update_layer_list);
bool did_paint_content = PaintContent(update_layer_list);
return did_paint_content;
}
void LayerTreeHost::ApplyViewportChanges(
const CompositorCommitData& commit_data) {
gfx::ScrollOffset inner_viewport_scroll_delta;
if (commit_data.inner_viewport_scroll.element_id)
inner_viewport_scroll_delta =
commit_data.inner_viewport_scroll.scroll_delta;
// When a new scroll-animation starts, it is necessary to check
// |commit_data.manipulation_info| to make sure the scroll-animation was
// started by an input event. If there is already an ongoing scroll-animation,
// then it is necessary to only look at |commit_data.ongoing_scroll_animation|
// (since it is possible for the scroll-animation to continue even if no event
// was handled).
bool new_ongoing_scroll = scroll_animation_.in_progress
? commit_data.ongoing_scroll_animation
: (commit_data.ongoing_scroll_animation &&
commit_data.manipulation_info);
if (scroll_animation_.in_progress && !new_ongoing_scroll) {
scroll_animation_.in_progress = false;
if (!scroll_animation_.end_notification.is_null())
std::move(scroll_animation_.end_notification).Run();
} else {
scroll_animation_.in_progress = new_ongoing_scroll;
}
if (inner_viewport_scroll_delta.IsZero() &&
commit_data.page_scale_delta == 1.f &&
commit_data.elastic_overscroll_delta.IsZero() &&
!commit_data.top_controls_delta && !commit_data.bottom_controls_delta &&
!commit_data.browser_controls_constraint_changed &&
!commit_data.scroll_gesture_did_end &&
commit_data.is_pinch_gesture_active ==
is_pinch_gesture_active_from_impl_) {
return;
}
is_pinch_gesture_active_from_impl_ = commit_data.is_pinch_gesture_active;
if (auto* inner_scroll = property_trees()->scroll_tree.Node(
viewport_property_ids_.inner_scroll)) {
UpdateScrollOffsetFromImpl(
inner_scroll->element_id, inner_viewport_scroll_delta,
commit_data.inner_viewport_scroll.snap_target_element_ids);
}
ApplyPageScaleDeltaFromImplSide(commit_data.page_scale_delta);
SetElasticOverscrollFromImplSide(elastic_overscroll_ +
commit_data.elastic_overscroll_delta);
// TODO(ccameron): pass the elastic overscroll here so that input events
// may be translated appropriately.
client_->ApplyViewportChanges(
{inner_viewport_scroll_delta, commit_data.elastic_overscroll_delta,
commit_data.page_scale_delta, commit_data.is_pinch_gesture_active,
commit_data.top_controls_delta, commit_data.bottom_controls_delta,
commit_data.browser_controls_constraint,
commit_data.scroll_gesture_did_end});
SetNeedsUpdateLayers();
}
void LayerTreeHost::UpdateScrollOffsetFromImpl(
const ElementId& id,
const gfx::ScrollOffset& delta,
const absl::optional<TargetSnapAreaElementIds>& snap_target_ids) {
if (IsUsingLayerLists()) {
auto& scroll_tree = property_trees()->scroll_tree;
auto new_offset = scroll_tree.current_scroll_offset(id) + delta;
TRACE_EVENT_INSTANT2("cc", "NotifyDidScroll", TRACE_EVENT_SCOPE_THREAD,
"cur_y", scroll_tree.current_scroll_offset(id).y(),
"delta", delta.y());
if (auto* scroll_node = scroll_tree.FindNodeFromElementId(id)) {
// This update closely follows
// blink::PropertyTreeManager::DirectlyUpdateScrollOffsetTransform.
scroll_tree.SetScrollOffset(id, new_offset);
// |blink::PropertyTreeManager::DirectlySetScrollOffset| (called from
// |blink::PropertyTreeManager::DirectlyUpdateScrollOffsetTransform|)
// marks the layer as needing to push properties in order to clobber
// animations, but that is not needed for an impl-side scroll.
// Update the offset in the transform node.
DCHECK(scroll_node->transform_id != TransformTree::kInvalidNodeId);
TransformTree& transform_tree = property_trees()->transform_tree;
auto* transform_node = transform_tree.Node(scroll_node->transform_id);
if (transform_node->scroll_offset != new_offset) {
transform_node->scroll_offset = new_offset;
transform_node->needs_local_transform_update = true;
transform_node->transform_changed = true;
transform_tree.set_needs_update(true);
}
// The transform tree has been modified which requires a call to
// |LayerTreeHost::UpdateLayers| to update the property trees.
SetNeedsUpdateLayers();
}
scroll_tree.NotifyDidScroll(id, new_offset, snap_target_ids);
} else if (Layer* layer = LayerByElementId(id)) {
layer->SetScrollOffsetFromImplSide(layer->scroll_offset() + delta);
SetNeedsUpdateLayers();
}
}
void LayerTreeHost::ApplyCompositorChanges(CompositorCommitData* commit_data) {
DCHECK(commit_data);
TRACE_EVENT0("cc", "LayerTreeHost::ApplyCompositorChanges");
using perfetto::protos::pbzero::ChromeLatencyInfo;
using perfetto::protos::pbzero::TrackEvent;
for (auto& swap_promise : commit_data->swap_promises) {
TRACE_EVENT(
"input,benchmark", "LatencyInfo.Flow",
[&swap_promise](perfetto::EventContext ctx) {
ChromeLatencyInfo* info = ctx.event()->set_chrome_latency_info();
info->set_trace_id(swap_promise->TraceId());
info->set_step(ChromeLatencyInfo::STEP_MAIN_THREAD_SCROLL_UPDATE);
tracing::FillFlowEvent(ctx, TrackEvent::LegacyEvent::FLOW_INOUT,
swap_promise->TraceId());
});
swap_promise_manager_.QueueSwapPromise(std::move(swap_promise));
}
if (root_layer_) {
auto& scroll_tree = property_trees()->scroll_tree;
for (auto& scroll : commit_data->scrolls) {
UpdateScrollOffsetFromImpl(scroll.element_id, scroll.scroll_delta,
scroll.snap_target_element_ids);
}
for (auto& scrollbar : commit_data->scrollbars) {
scroll_tree.NotifyDidChangeScrollbarsHidden(scrollbar.element_id,
scrollbar.hidden);
}
}
client_->UpdateCompositorScrollState(*commit_data);
// This needs to happen after scroll deltas have been sent to prevent top
// controls from clamping the layout viewport both on the compositor and
// on the main thread.
ApplyViewportChanges(*commit_data);
}
void LayerTreeHost::ApplyMutatorEvents(std::unique_ptr<MutatorEvents> events) {
DCHECK(task_runner_provider_->IsMainThread());
if (!events->IsEmpty())
mutator_host_->SetAnimationEvents(std::move(events));
}
void LayerTreeHost::RecordStartOfFrameMetrics() {
client_->RecordStartOfFrameMetrics();
}
void LayerTreeHost::RecordEndOfFrameMetrics(
base::TimeTicks frame_begin_time,
ActiveFrameSequenceTrackers trackers) {
client_->RecordEndOfFrameMetrics(frame_begin_time, trackers);
}
void LayerTreeHost::NotifyThroughputTrackerResults(
CustomTrackerResults results) {
client_->NotifyThroughputTrackerResults(std::move(results));
}
const base::WeakPtr<CompositorDelegateForInput>&
LayerTreeHost::GetDelegateForInput() const {
return compositor_delegate_weak_ptr_;
}
void LayerTreeHost::UpdateBrowserControlsState(BrowserControlsState constraints,
BrowserControlsState current,
bool animate) {
// Browser controls are only used in threaded mode but Blink layout tests may
// call into this. The single threaded version is a no-op.
proxy_->UpdateBrowserControlsState(constraints, current, animate);
}
void LayerTreeHost::AnimateLayers(base::TimeTicks monotonic_time) {
std::unique_ptr<MutatorEvents> events = mutator_host_->CreateEvents();
if (mutator_host_->TickAnimations(monotonic_time,
property_trees()->scroll_tree, true))
mutator_host_->UpdateAnimationState(true, events.get());
if (!events->IsEmpty()) {
// If not using layer lists, animation state changes will require
// rebuilding property trees to track them.
if (!IsUsingLayerLists())
property_trees_.needs_rebuild = true;
// A commit is required to push animation changes to the compositor.
SetNeedsCommit();
}
}
int LayerTreeHost::ScheduleMicroBenchmark(
const std::string& benchmark_name,
std::unique_ptr<base::Value> value,
MicroBenchmark::DoneCallback callback) {
return micro_benchmark_controller_.ScheduleRun(
benchmark_name, std::move(value), std::move(callback));
}
bool LayerTreeHost::SendMessageToMicroBenchmark(
int id,
std::unique_ptr<base::Value> value) {
return micro_benchmark_controller_.SendMessage(id, std::move(value));
}
void LayerTreeHost::SetLayerTreeMutator(
std::unique_ptr<LayerTreeMutator> mutator) {
// The animation worklet system assumes that the mutator will never be called
// from the main thread, which will not be the case if we're running in
// single-threaded mode.
if (!task_runner_provider_->HasImplThread()) {
DLOG(ERROR) << "LayerTreeMutator not supported in single-thread mode";
return;
}
proxy_->SetMutator(std::move(mutator));
}
void LayerTreeHost::SetPaintWorkletLayerPainter(
std::unique_ptr<PaintWorkletLayerPainter> painter) {
// The paint worklet system assumes that the painter will never be called from
// the main thread, which will not be the case if we're running in
// single-threaded mode.
DCHECK(task_runner_provider_->HasImplThread())
<< "PaintWorkletLayerPainter not supported in single-thread mode";
proxy_->SetPaintWorkletLayerPainter(std::move(painter));
}
bool LayerTreeHost::IsSingleThreaded() const {
DCHECK(compositor_mode_ != CompositorMode::SINGLE_THREADED ||
!task_runner_provider_->HasImplThread());
return compositor_mode_ == CompositorMode::SINGLE_THREADED;
}
bool LayerTreeHost::IsThreaded() const {
DCHECK(compositor_mode_ != CompositorMode::THREADED ||
task_runner_provider_->HasImplThread());
return compositor_mode_ == CompositorMode::THREADED;
}
void LayerTreeHost::RequestPresentationTimeForNextFrame(
PresentationTimeCallbackBuffer::MainCallback callback) {
pending_presentation_time_callbacks_.push_back(std::move(callback));
}
void LayerTreeHost::RequestScrollAnimationEndNotification(
base::OnceClosure callback) {
DCHECK(scroll_animation_.end_notification.is_null());
if (scroll_animation_.in_progress)
scroll_animation_.end_notification = std::move(callback);
else
std::move(callback).Run();
}
void LayerTreeHost::SetRootLayer(scoped_refptr<Layer> root_layer) {
if (root_layer_.get() == root_layer.get())
return;
if (root_layer_.get())
root_layer_->SetLayerTreeHost(nullptr);
root_layer_ = root_layer;
if (root_layer_.get()) {
DCHECK(!root_layer_->parent());
root_layer_->SetLayerTreeHost(this);
}
if (hud_layer_.get())
hud_layer_->RemoveFromParent();
// Reset gpu rasterization tracking.
// This flag is sticky until a new tree comes along.
gpu_rasterization_histogram_recorded_ = false;
SetNeedsFullTreeSync();
}
void LayerTreeHost::RegisterViewportPropertyIds(
const ViewportPropertyIds& ids) {
DCHECK(IsUsingLayerLists());
viewport_property_ids_ = ids;
// Outer viewport properties exist only if inner viewport property exists.
DCHECK(ids.inner_scroll != ScrollTree::kInvalidNodeId ||
(ids.outer_scroll == ScrollTree::kInvalidNodeId &&
ids.outer_clip == ClipTree::kInvalidNodeId));
}
Layer* LayerTreeHost::InnerViewportScrollLayerForTesting() const {
auto* scroll_node =
property_trees()->scroll_tree.Node(viewport_property_ids_.inner_scroll);
return scroll_node ? LayerByElementId(scroll_node->element_id) : nullptr;
}
Layer* LayerTreeHost::OuterViewportScrollLayerForTesting() const {
return LayerByElementId(OuterViewportScrollElementId());
}
ElementId LayerTreeHost::OuterViewportScrollElementId() const {
auto* scroll_node =
property_trees()->scroll_tree.Node(viewport_property_ids_.outer_scroll);
return scroll_node ? scroll_node->element_id : ElementId();
}
void LayerTreeHost::RegisterSelection(const LayerSelection& selection) {
if (selection_ == selection)
return;
selection_ = selection;
SetNeedsCommit();
}
void LayerTreeHost::SetHaveScrollEventHandlers(bool have_event_handlers) {
if (have_scroll_event_handlers_ == have_event_handlers)
return;
have_scroll_event_handlers_ = have_event_handlers;
SetNeedsCommit();
}
void LayerTreeHost::SetEventListenerProperties(
EventListenerClass event_class,
EventListenerProperties properties) {
const size_t index = static_cast<size_t>(event_class);
if (event_listener_properties_[index] == properties)
return;
// If the mouse wheel event listener is blocking, then every layer in the
// layer tree sets a wheel event handler region to be its entire bounds,
// otherwise it sets it to empty.
//
// Thus when it changes, we want to request every layer to push properties
// and recompute its wheel event handler region, since the computation is
// done in PushPropertiesTo.
if (event_class == EventListenerClass::kMouseWheel &&
!base::FeatureList::IsEnabled(::features::kWheelEventRegions)) {
bool new_property_is_blocking =
properties == EventListenerProperties::kBlocking ||
properties == EventListenerProperties::kBlockingAndPassive;
EventListenerProperties old_properties = event_listener_properties_[index];
bool old_property_is_blocking =
old_properties == EventListenerProperties::kBlocking ||
old_properties == EventListenerProperties::kBlockingAndPassive;
if (old_property_is_blocking != new_property_is_blocking) {
for (auto* layer : *this)
layer->SetNeedsPushProperties();
}
}
event_listener_properties_[index] = properties;
SetNeedsCommit();
}
void LayerTreeHost::SetViewportRectAndScale(
const gfx::Rect& device_viewport_rect,
float device_scale_factor,
const viz::LocalSurfaceId& local_surface_id_from_parent) {
const viz::LocalSurfaceId previous_local_surface_id =
local_surface_id_from_parent_;
SetLocalSurfaceIdFromParent(local_surface_id_from_parent);
TRACE_EVENT_NESTABLE_ASYNC_END0("cc", "LayerTreeHostSize",
TRACE_ID_LOCAL(this));
TRACE_EVENT_NESTABLE_ASYNC_BEGIN2("cc", "LayerTreeHostSize",
TRACE_ID_LOCAL(this), "size",
device_viewport_rect.ToString(), "lsid",
local_surface_id_from_parent.ToString());
bool device_viewport_rect_changed = false;
if (device_viewport_rect_ != device_viewport_rect) {
device_viewport_rect_ = device_viewport_rect;
device_viewport_rect_changed = true;
}
bool painted_device_scale_factor_changed = false;
bool device_scale_factor_changed = false;
if (settings_.use_painted_device_scale_factor) {
DCHECK_EQ(device_scale_factor_, 1.f);
if (painted_device_scale_factor_ != device_scale_factor) {
painted_device_scale_factor_ = device_scale_factor;
painted_device_scale_factor_changed = true;
}
} else {
DCHECK_EQ(painted_device_scale_factor_, 1.f);
if (device_scale_factor_ != device_scale_factor) {
device_scale_factor_ = device_scale_factor;
device_scale_factor_changed = true;
}
}
// If a new viz::LocalSurfaceId has been provided, and the viewport has
// changed, we need not begin new frames until it has activated.
if (previous_local_surface_id != local_surface_id_from_parent &&
device_viewport_rect_changed && features::IsSurfaceSyncThrottling()) {
SetTargetLocalSurfaceId(local_surface_id_from_parent);
}
if (device_viewport_rect_changed || painted_device_scale_factor_changed ||
device_scale_factor_changed) {
SetPropertyTreesNeedRebuild();
SetNeedsCommit();
}
}
void LayerTreeHost::SetVisualDeviceViewportIntersectionRect(
const gfx::Rect& intersection_rect) {
if (intersection_rect == visual_device_viewport_intersection_rect_)
return;
visual_device_viewport_intersection_rect_ = intersection_rect;
}
void LayerTreeHost::SetVisualDeviceViewportSize(
const gfx::Size& visual_device_viewport_size) {
if (visual_device_viewport_size == visual_device_viewport_size_)
return;
visual_device_viewport_size_ = visual_device_viewport_size;
SetNeedsCommit();
}
void LayerTreeHost::SetBrowserControlsParams(
const BrowserControlsParams& params) {
if (browser_controls_params_ == params)
return;
browser_controls_params_ = params;
SetNeedsCommit();
}
void LayerTreeHost::SetBrowserControlsShownRatio(float top_ratio,
float bottom_ratio) {
if (top_controls_shown_ratio_ == top_ratio &&
bottom_controls_shown_ratio_ == bottom_ratio)
return;
top_controls_shown_ratio_ = top_ratio;
bottom_controls_shown_ratio_ = bottom_ratio;
SetNeedsCommit();
}
void LayerTreeHost::SetOverscrollBehavior(const OverscrollBehavior& behavior) {
if (overscroll_behavior_ == behavior)
return;
overscroll_behavior_ = behavior;
SetNeedsCommit();
}
void LayerTreeHost::SetPageScaleFactorAndLimits(float page_scale_factor,
float min_page_scale_factor,
float max_page_scale_factor) {
if (page_scale_factor_ == page_scale_factor &&
min_page_scale_factor_ == min_page_scale_factor &&
max_page_scale_factor_ == max_page_scale_factor)
return;
DCHECK_GE(page_scale_factor, min_page_scale_factor);
DCHECK_LE(page_scale_factor, max_page_scale_factor);
// We should never process non-unit page_scale_delta for an OOPIF subframe.
// TODO(wjmaclean): Remove this dcheck as a pre-condition to closing the bug.
// https://crbug.com/845097
DCHECK(!settings_.is_layer_tree_for_subframe ||
page_scale_factor == page_scale_factor_)
<< "Setting PSF in oopif subframe: old psf = " << page_scale_factor_
<< ", new psf = " << page_scale_factor;
page_scale_factor_ = page_scale_factor;
min_page_scale_factor_ = min_page_scale_factor;
max_page_scale_factor_ = max_page_scale_factor;
SetPropertyTreesNeedRebuild();
SetNeedsCommit();
}
void LayerTreeHost::StartPageScaleAnimation(const gfx::Vector2d& target_offset,
bool use_anchor,
float scale,
base::TimeDelta duration) {
pending_page_scale_animation_ = std::make_unique<PendingPageScaleAnimation>(
target_offset, use_anchor, scale, duration);
SetNeedsCommit();
}
bool LayerTreeHost::HasPendingPageScaleAnimation() const {
return !!pending_page_scale_animation_.get();
}
void LayerTreeHost::SetRecordingScaleFactor(float recording_scale_factor) {
if (recording_scale_factor_ == recording_scale_factor)
return;
recording_scale_factor_ = recording_scale_factor;
}
void LayerTreeHost::SetDisplayColorSpaces(
const gfx::DisplayColorSpaces& display_color_spaces) {
if (display_color_spaces_ == display_color_spaces)
return;
display_color_spaces_ = display_color_spaces;
for (auto* layer : *this)
layer->SetNeedsDisplay();
}
void LayerTreeHost::UpdateViewportIsMobileOptimized(
bool is_viewport_mobile_optimized) {
if (is_viewport_mobile_optimized_ == is_viewport_mobile_optimized)
return;
is_viewport_mobile_optimized_ = is_viewport_mobile_optimized;
SetNeedsCommit();
}
void LayerTreeHost::SetExternalPageScaleFactor(
float page_scale_factor,
bool is_external_pinch_gesture_active) {
if (external_page_scale_factor_ == page_scale_factor &&
is_external_pinch_gesture_active_ == is_external_pinch_gesture_active) {
return;
}
external_page_scale_factor_ = page_scale_factor;
is_external_pinch_gesture_active_ = is_external_pinch_gesture_active;
SetNeedsCommit();
}
void LayerTreeHost::SetLocalSurfaceIdFromParent(
const viz::LocalSurfaceId& local_surface_id_from_parent) {
// If the viz::LocalSurfaceId is invalid we will be hitting the early exit.
// However creating a hash for tracing of an invalid id throw an error. So
// exit here. This is either from unit testing where no ids are being setup,
// or from a disconnect in Renderer and Browser startup, in which Renderers
// have a partial state before the Browser sends the full visual properties.
//
// TODO(jonross): Untangle startup so that we don't have this invalid partial
// state. (https://crbug.com/1185286) (https://crbug.com/419087)
if (local_surface_id_from_parent_ == local_surface_id_from_parent)
return;
const viz::LocalSurfaceId current_local_surface_id_from_parent =
local_surface_id_from_parent_;
// These traces are split into two due to the usage of TRACE_ID_GLOBAL for the
// incoming flow (it comes from a different process), and TRACE_ID_LOCAL for
// the outgoing flow. The outgoing flow uses local to ensure that it doesn't
// flow into the wrong trace in different process.
TRACE_EVENT_WITH_FLOW2(
TRACE_DISABLED_BY_DEFAULT("viz.surface_id_flow"),
"LocalSurfaceId.Submission.Flow",
TRACE_ID_GLOBAL(local_surface_id_from_parent.submission_trace_id()),
TRACE_EVENT_FLAG_FLOW_IN, "step", "SetLocalSurfaceIdFromParent",
"local_surface_id", local_surface_id_from_parent.ToString());
TRACE_EVENT_WITH_FLOW2(
TRACE_DISABLED_BY_DEFAULT("viz.surface_id_flow"),
"LocalSurfaceId.Submission.Flow",
TRACE_ID_LOCAL(local_surface_id_from_parent.submission_trace_id()),
TRACE_EVENT_FLAG_FLOW_OUT, "step", "SetLocalSurfaceIdFromParent",
"local_surface_id", local_surface_id_from_parent.ToString());
// Always update the cached state of the viz::LocalSurfaceId to reflect the
// latest value received from our parent.
local_surface_id_from_parent_ = local_surface_id_from_parent;
// If the parent sequence number has not advanced, then there is no need to
// commit anything. This can occur when the child sequence number has
// advanced. Which means that child has changed visual properites, and the
// parent agreed upon these without needing to further advance its sequence
// number. When this occurs the child is already up-to-date and a commit here
// is simply redundant.
if (AreEmbedTokensEqual(current_local_surface_id_from_parent,
local_surface_id_from_parent) &&
AreParentSequencesEqual(current_local_surface_id_from_parent,
local_surface_id_from_parent)) {
return;
}
UpdateDeferMainFrameUpdateInternal();
SetNeedsCommit();
}
void LayerTreeHost::RequestNewLocalSurfaceId() {
// We can still request a new viz::LocalSurfaceId but that request will be
// deferred until we have a valid viz::LocalSurfaceId from the parent.
if (new_local_surface_id_request_)
return;
new_local_surface_id_request_ = true;
SetNeedsCommit();
}
bool LayerTreeHost::TakeNewLocalSurfaceIdRequest() {
bool new_local_surface_id_request = new_local_surface_id_request_;
new_local_surface_id_request_ = false;
return new_local_surface_id_request;
}
void LayerTreeHost::RegisterLayer(Layer* layer) {
DCHECK(!LayerById(layer->id()));
DCHECK(!in_paint_layer_contents_);
layer_id_map_[layer->id()] = layer;
if (!IsUsingLayerLists() && layer->element_id()) {
mutator_host_->RegisterElementId(layer->element_id(),
ElementListType::ACTIVE);
}
}
void LayerTreeHost::UnregisterLayer(Layer* layer) {
DCHECK(LayerById(layer->id()));
DCHECK(!in_paint_layer_contents_);
if (!IsUsingLayerLists() && layer->element_id()) {
mutator_host_->UnregisterElementId(layer->element_id(),
ElementListType::ACTIVE);
}
layers_that_should_push_properties_.erase(layer);
layer_id_map_.erase(layer->id());
}
Layer* LayerTreeHost::LayerById(int id) const {
auto iter = layer_id_map_.find(id);
return iter != layer_id_map_.end() ? iter->second : nullptr;
}
bool LayerTreeHost::PaintContent(const LayerList& update_layer_list) {
base::AutoReset<bool> painting(&in_paint_layer_contents_, true);
bool did_paint_content = false;
for (const auto& layer : update_layer_list) {
did_paint_content |= layer->Update();
}
return did_paint_content;
}
void LayerTreeHost::AddSurfaceRange(const viz::SurfaceRange& surface_range) {
if (++surface_ranges_[surface_range] == 1)
needs_surface_ranges_sync_ = true;
}
void LayerTreeHost::RemoveSurfaceRange(const viz::SurfaceRange& surface_range) {
auto iter = surface_ranges_.find(surface_range);
if (iter == surface_ranges_.end())
return;
if (--iter->second <= 0) {
surface_ranges_.erase(iter);
needs_surface_ranges_sync_ = true;
}
}
base::flat_set<viz::SurfaceRange> LayerTreeHost::SurfaceRanges() const {
base::flat_set<viz::SurfaceRange> ranges;
for (auto& map_entry : surface_ranges_)
ranges.insert(map_entry.first);
return ranges;
}
void LayerTreeHost::AddLayerShouldPushProperties(Layer* layer) {
layers_that_should_push_properties_.insert(layer);
}
void LayerTreeHost::ClearLayersThatShouldPushProperties() {
layers_that_should_push_properties_.clear();
}
void LayerTreeHost::SetPageScaleFromImplSide(float page_scale) {
DCHECK(CommitRequested());
// We should never process non-unit page_scale_delta for an OOPIF subframe.
// TODO(wjmaclean): Remove this check as a pre-condition to closing the bug.
// https://crbug.com/845097
DCHECK(!settings_.is_layer_tree_for_subframe ||
page_scale == page_scale_factor_)
<< "Setting PSF in oopif subframe: old psf = " << page_scale_factor_
<< ", new psf = " << page_scale;
page_scale_factor_ = page_scale;
SetPropertyTreesNeedRebuild();
}
void LayerTreeHost::SetElasticOverscrollFromImplSide(
gfx::Vector2dF elastic_overscroll) {
DCHECK(CommitRequested());
elastic_overscroll_ = elastic_overscroll;
}
void LayerTreeHost::UpdateHudLayer(bool show_hud_info) {
if (show_hud_info) {
if (!hud_layer_.get())
hud_layer_ = HeadsUpDisplayLayer::Create();
if (root_layer_.get() && !hud_layer_->parent())
root_layer_->AddChild(hud_layer_);
hud_layer_->UpdateLocationAndSize(device_viewport_rect_.size(),
device_scale_factor_);
if (debug_state_.show_web_vital_metrics) {
// This WebVitalMetrics is filled by the main frame, which is equivalent
// to WebPerf's numbers. The main frame's number doesn't include any
// iframes. UMA/UKM records metrics for the entire page aggregating all
// the frames. The page metrics are in the browser process.
// TODO(weiliangc): Get the page metrics for display.
auto metrics = client_->GetWebVitalMetrics();
if (metrics && metrics->HasValue())
hud_layer_->UpdateWebVitalMetrics(std::move(metrics));
}
} else if (hud_layer_.get()) {
hud_layer_->RemoveFromParent();
hud_layer_ = nullptr;
}
}
bool LayerTreeHost::is_hud_layer(const Layer* layer) const {
return hud_layer() == layer;
}
void LayerTreeHost::SetNeedsFullTreeSync() {
needs_full_tree_sync_ = true;
property_trees_.needs_rebuild = true;
SetNeedsCommit();
}
void LayerTreeHost::SetPropertyTreesNeedRebuild() {
property_trees_.needs_rebuild = true;
SetNeedsUpdateLayers();
}
void LayerTreeHost::PushLayerTreePropertiesTo(LayerTreeImpl* tree_impl) {
tree_impl->set_needs_full_tree_sync(needs_full_tree_sync_);
needs_full_tree_sync_ = false;
if (hud_layer_.get()) {
LayerImpl* hud_impl = tree_impl->LayerById(hud_layer_->id());
tree_impl->set_hud_layer(static_cast<HeadsUpDisplayLayerImpl*>(hud_impl));
} else {
tree_impl->set_hud_layer(nullptr);
}
tree_impl->set_background_color(background_color_);
tree_impl->set_have_scroll_event_handlers(have_scroll_event_handlers_);
tree_impl->set_event_listener_properties(
EventListenerClass::kTouchStartOrMove,
event_listener_properties(EventListenerClass::kTouchStartOrMove));
tree_impl->set_event_listener_properties(
EventListenerClass::kMouseWheel,
event_listener_properties(EventListenerClass::kMouseWheel));
tree_impl->set_event_listener_properties(
EventListenerClass::kTouchEndOrCancel,
event_listener_properties(EventListenerClass::kTouchEndOrCancel));
tree_impl->SetViewportPropertyIds(viewport_property_ids_);
tree_impl->RegisterSelection(selection_);
tree_impl->PushPageScaleFromMainThread(
page_scale_factor_, min_page_scale_factor_, max_page_scale_factor_);
tree_impl->SetBrowserControlsParams(browser_controls_params_);
tree_impl->set_overscroll_behavior(overscroll_behavior_);
tree_impl->PushBrowserControlsFromMainThread(top_controls_shown_ratio_,
bottom_controls_shown_ratio_);
tree_impl->elastic_overscroll()->PushMainToPending(elastic_overscroll_);
if (tree_impl->IsActiveTree())
tree_impl->elastic_overscroll()->PushPendingToActive();
tree_impl->SetDisplayColorSpaces(display_color_spaces_);
tree_impl->SetExternalPageScaleFactor(external_page_scale_factor_);
tree_impl->set_painted_device_scale_factor(painted_device_scale_factor_);
tree_impl->SetDeviceScaleFactor(device_scale_factor_);
tree_impl->SetDeviceViewportRect(device_viewport_rect_);
if (TakeNewLocalSurfaceIdRequest())
tree_impl->RequestNewLocalSurfaceId();
tree_impl->SetLocalSurfaceIdFromParent(local_surface_id_from_parent_);
if (pending_page_scale_animation_) {
tree_impl->SetPendingPageScaleAnimation(
std::move(pending_page_scale_animation_));
}
if (TakeForceSendMetadataRequest())
tree_impl->RequestForceSendMetadata();
tree_impl->set_has_ever_been_drawn(false);
// TODO(ericrk): The viewport changes caused by |top_controls_shown_ratio_|
// changes should propagate back to the main tree. This does not currently
// happen, so we must force the impl tree to update its viewports if
// |top_controls_shown_ratio_| is greater than 0.0f and less than 1.0f
// (partially shown). crbug.com/875943
if (top_controls_shown_ratio_ > 0.0f && top_controls_shown_ratio_ < 1.0f) {
tree_impl->UpdateViewportContainerSizes();
}
tree_impl->set_display_transform_hint(display_transform_hint_);
if (delegated_ink_metadata_)
tree_impl->set_delegated_ink_metadata(std::move(delegated_ink_metadata_));
// Transfer page transition directives.
for (auto& request : document_transition_requests_) {
// Store the commit callback on LayerTreeHost, so that we can invoke them
// when the request is finished.
DCHECK(!base::Contains(document_transition_callbacks_,
request->sequence_id()));
document_transition_callbacks_[request->sequence_id()] =
request->TakeFinishedCallback();
tree_impl->AddDocumentTransitionRequest(std::move(request));
}
document_transition_requests_.clear();
}
void LayerTreeHost::PushSurfaceRangesTo(LayerTreeImpl* tree_impl) {
if (needs_surface_ranges_sync()) {
tree_impl->ClearSurfaceRanges();
tree_impl->SetSurfaceRanges(SurfaceRanges());
// Reset for next update
set_needs_surface_ranges_sync(false);
}
}
void LayerTreeHost::PushLayerTreeHostPropertiesTo(
LayerTreeHostImpl* host_impl) {
// TODO(bokan): The |external_pinch_gesture_active| should not be going
// through the LayerTreeHost but directly from InputHandler to InputHandler.
host_impl->SetExternalPinchGestureActive(is_external_pinch_gesture_active_);
RecordGpuRasterizationHistogram(host_impl);
host_impl->SetDebugState(debug_state_);
host_impl->SetVisualDeviceViewportSize(visual_device_viewport_size_);
host_impl->set_viewport_mobile_optimized(is_viewport_mobile_optimized_);
}
Layer* LayerTreeHost::LayerByElementId(ElementId element_id) const {
auto iter = element_layers_map_.find(element_id);
return iter != element_layers_map_.end() ? iter->second : nullptr;
}
void LayerTreeHost::RegisterElement(ElementId element_id,
Layer* layer) {
element_layers_map_[element_id] = layer;
if (!IsUsingLayerLists())
mutator_host_->RegisterElementId(element_id, ElementListType::ACTIVE);
}
void LayerTreeHost::UnregisterElement(ElementId element_id) {
if (!IsUsingLayerLists())
mutator_host_->UnregisterElementId(element_id, ElementListType::ACTIVE);
element_layers_map_.erase(element_id);
}
void LayerTreeHost::UpdateActiveElements() {
DCHECK(IsUsingLayerLists());
mutator_host_->UpdateRegisteredElementIds(ElementListType::ACTIVE);
}
void LayerTreeHost::SetElementIdsForTesting() {
for (auto* layer : *this)
layer->SetElementId(LayerIdToElementIdForTesting(layer->id()));
}
void LayerTreeHost::BuildPropertyTreesForTesting() {
PropertyTreeBuilder::BuildPropertyTrees(this);
}
bool LayerTreeHost::IsElementInPropertyTrees(ElementId element_id,
ElementListType list_type) const {
if (IsUsingLayerLists()) {
return list_type == ElementListType::ACTIVE &&
property_trees()->HasElement(element_id);
}
return list_type == ElementListType::ACTIVE && LayerByElementId(element_id);
}
void LayerTreeHost::SetMutatorsNeedCommit() {
SetNeedsCommit();
}
void LayerTreeHost::SetMutatorsNeedRebuildPropertyTrees() {
property_trees_.needs_rebuild = true;
}
void LayerTreeHost::SetElementFilterMutated(ElementId element_id,
ElementListType list_type,
const FilterOperations& filters) {
if (IsUsingLayerLists()) {
// In BlinkGenPropertyTrees/CompositeAfterPaint we always have property
// tree nodes and can set the filter directly on the effect node.
property_trees_.effect_tree.OnFilterAnimated(element_id, filters);
return;
}
Layer* layer = LayerByElementId(element_id);
DCHECK(layer);
layer->OnFilterAnimated(filters);
}
void LayerTreeHost::SetElementBackdropFilterMutated(
ElementId element_id,
ElementListType list_type,
const FilterOperations& backdrop_filters) {
if (IsUsingLayerLists()) {
// In BlinkGenPropertyTrees/CompositeAfterPaint we always have property
// tree nodes and can set the backdrop_filter directly on the effect node.
property_trees_.effect_tree.OnBackdropFilterAnimated(element_id,
backdrop_filters);
return;
}
Layer* layer = LayerByElementId(element_id);
DCHECK(layer);
layer->OnBackdropFilterAnimated(backdrop_filters);
}
void LayerTreeHost::SetElementOpacityMutated(ElementId element_id,
ElementListType list_type,
float opacity) {
DCHECK_GE(opacity, 0.f);
DCHECK_LE(opacity, 1.f);
if (IsUsingLayerLists()) {
property_trees_.effect_tree.OnOpacityAnimated(element_id, opacity);
return;
}
Layer* layer = LayerByElementId(element_id);
DCHECK(layer);
layer->OnOpacityAnimated(opacity);
if (EffectNode* node =
property_trees_.effect_tree.Node(layer->effect_tree_index())) {
DCHECK_EQ(layer->effect_tree_index(), node->id);
if (node->opacity == opacity)
return;
node->opacity = opacity;
property_trees_.effect_tree.set_needs_update(true);
}
SetNeedsUpdateLayers();
}
void LayerTreeHost::SetElementTransformMutated(
ElementId element_id,
ElementListType list_type,
const gfx::Transform& transform) {
if (IsUsingLayerLists()) {
property_trees_.transform_tree.OnTransformAnimated(element_id, transform);
return;
}
Layer* layer = LayerByElementId(element_id);
DCHECK(layer);
layer->OnTransformAnimated(transform);
if (layer->has_transform_node()) {
TransformNode* node =
property_trees_.transform_tree.Node(layer->transform_tree_index());
if (node->local == transform)
return;
node->local = transform;
node->needs_local_transform_update = true;
node->has_potential_animation = true;
property_trees_.transform_tree.set_needs_update(true);
}
SetNeedsUpdateLayers();
}
void LayerTreeHost::SetElementScrollOffsetMutated(
ElementId element_id,
ElementListType list_type,
const gfx::ScrollOffset& scroll_offset) {
// Do nothing. Scroll deltas will be sent from the compositor thread back
// to the main thread in the same manner as during non-animated
// compositor-driven scrolling.
}
void LayerTreeHost::ElementIsAnimatingChanged(
const PropertyToElementIdMap& element_id_map,
ElementListType list_type,
const PropertyAnimationState& mask,
const PropertyAnimationState& state) {
DCHECK_EQ(ElementListType::ACTIVE, list_type);
property_trees()->ElementIsAnimatingChanged(element_id_map, mask, state,
true);
}
void LayerTreeHost::MaximumScaleChanged(ElementId element_id,
ElementListType list_type,
float maximum_scale) {
DCHECK_EQ(ElementListType::ACTIVE, list_type);
property_trees()->MaximumAnimationScaleChanged(element_id, maximum_scale);
}
gfx::ScrollOffset LayerTreeHost::GetScrollOffsetForAnimation(
ElementId element_id) const {
return property_trees()->scroll_tree.current_scroll_offset(element_id);
}
void LayerTreeHost::QueueImageDecode(const PaintImage& image,
base::OnceCallback<void(bool)> callback) {
TRACE_EVENT0("cc", "LayerTreeHost::QueueImageDecode");
queued_image_decodes_.emplace_back(image, std::move(callback));
SetNeedsCommit();
}
LayerListIterator LayerTreeHost::begin() const {
return LayerListIterator(root_layer_.get());
}
LayerListIterator LayerTreeHost::end() const {
return LayerListIterator(nullptr);
}
LayerListReverseIterator LayerTreeHost::rbegin() {
return LayerListReverseIterator(root_layer_.get());
}
LayerListReverseIterator LayerTreeHost::rend() {
return LayerListReverseIterator(nullptr);
}
void LayerTreeHost::SetPropertyTreesForTesting(
const PropertyTrees* property_trees) {
property_trees_ = *property_trees;
}
void LayerTreeHost::SetNeedsDisplayOnAllLayers() {
for (auto* layer : *this)
layer->SetNeedsDisplay();
}
void LayerTreeHost::SetHasCopyRequest(bool has_copy_request) {
has_copy_request_ = has_copy_request;
}
void LayerTreeHost::RequestBeginMainFrameNotExpected(bool new_state) {
proxy_->RequestBeginMainFrameNotExpected(new_state);
}
void LayerTreeHost::SetSourceURL(ukm::SourceId source_id, const GURL& url) {
// Clears image caches and resets the scheduling history for the content
// produced by this host so far.
clear_caches_on_next_commit_ = true;
proxy_->SetSourceURL(source_id, url);
// If this is not used as a common web page, don't show HUD.
if (!url.SchemeIsHTTPOrHTTPS())
debug_state_.TurnOffHudInfoDisplay();
}
base::ReadOnlySharedMemoryRegion
LayerTreeHost::CreateSharedMemoryForSmoothnessUkm() {
const auto size = sizeof(UkmSmoothnessDataShared);
auto ukm_smoothness_mapping = base::ReadOnlySharedMemoryRegion::Create(size);
if (!ukm_smoothness_mapping.IsValid())
return {};
proxy_->SetUkmSmoothnessDestination(
std::move(ukm_smoothness_mapping.mapping));
return std::move(ukm_smoothness_mapping.region);
}
void LayerTreeHost::SetRenderFrameObserver(
std::unique_ptr<RenderFrameMetadataObserver> observer) {
proxy_->SetRenderFrameObserver(std::move(observer));
}
bool LayerTreeHost::TakeForceSendMetadataRequest() {
bool force_send_metadata_request = force_send_metadata_request_;
force_send_metadata_request_ = false;
return force_send_metadata_request;
}
void LayerTreeHost::SetEnableFrameRateThrottling(
bool enable_frame_rate_throttling) {
proxy_->SetEnableFrameRateThrottling(enable_frame_rate_throttling);
}
void LayerTreeHost::SetDelegatedInkMetadata(
std::unique_ptr<gfx::DelegatedInkMetadata> metadata) {
delegated_ink_metadata_ = std::move(metadata);
SetNeedsCommit();
}
gfx::RenderingPipeline* LayerTreeHost::TakeMainPipeline() {
auto* pipeline = main_thread_pipeline_;
main_thread_pipeline_ = nullptr;
return pipeline;
}
gfx::RenderingPipeline* LayerTreeHost::TakeCompositorPipeline() {
auto* pipeline = compositor_thread_pipeline_;
compositor_thread_pipeline_ = nullptr;
return pipeline;
}
std::vector<std::unique_ptr<DocumentTransitionRequest>>
LayerTreeHost::TakeDocumentTransitionRequestsForTesting() {
return std::move(document_transition_requests_);
}
} // namespace cc