| // 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. |
| |
| #ifndef CC_TREES_LAYER_TREE_HOST_H_ |
| #define CC_TREES_LAYER_TREE_HOST_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <limits> |
| #include <memory> |
| #include <set> |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include "base/callback_forward.h" |
| #include "base/cancelable_callback.h" |
| #include "base/containers/flat_map.h" |
| #include "base/containers/flat_set.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/time/time.h" |
| #include "cc/benchmarks/micro_benchmark.h" |
| #include "cc/benchmarks/micro_benchmark_controller.h" |
| #include "cc/cc_export.h" |
| #include "cc/input/browser_controls_state.h" |
| #include "cc/input/event_listener_properties.h" |
| #include "cc/input/input_handler.h" |
| #include "cc/input/layer_selection_bound.h" |
| #include "cc/input/scrollbar.h" |
| #include "cc/layers/layer_collections.h" |
| #include "cc/layers/layer_list_iterator.h" |
| #include "cc/trees/compositor_mode.h" |
| #include "cc/trees/layer_tree_frame_sink.h" |
| #include "cc/trees/layer_tree_host_client.h" |
| #include "cc/trees/layer_tree_settings.h" |
| #include "cc/trees/mutator_host.h" |
| #include "cc/trees/proxy.h" |
| #include "cc/trees/swap_promise.h" |
| #include "cc/trees/swap_promise_manager.h" |
| #include "cc/trees/target_property.h" |
| #include "components/viz/common/resources/resource_format.h" |
| #include "services/metrics/public/cpp/ukm_source_id.h" |
| #include "third_party/skia/include/core/SkColor.h" |
| #include "ui/gfx/geometry/rect.h" |
| |
| namespace gfx { |
| struct PresentationFeedback; |
| } |
| |
| namespace cc { |
| class HeadsUpDisplayLayer; |
| class Layer; |
| class LayerTreeHostClient; |
| class LayerTreeHostImpl; |
| class LayerTreeHostImplClient; |
| class LayerTreeHostSingleThreadClient; |
| class LayerTreeMutator; |
| class MutatorEvents; |
| class MutatorHost; |
| struct PendingPageScaleAnimation; |
| class RenderFrameMetadataObserver; |
| class RenderingStatsInstrumentation; |
| struct OverscrollBehavior; |
| class TaskGraphRunner; |
| class UIResourceManager; |
| class UkmRecorderFactory; |
| struct RenderingStats; |
| struct ScrollAndScaleSet; |
| |
| class CC_EXPORT LayerTreeHost : public MutatorHostClient { |
| public: |
| struct CC_EXPORT InitParams { |
| LayerTreeHostClient* client = nullptr; |
| TaskGraphRunner* task_graph_runner = nullptr; |
| LayerTreeSettings const* settings = nullptr; |
| scoped_refptr<base::SingleThreadTaskRunner> main_task_runner; |
| MutatorHost* mutator_host = nullptr; |
| |
| // The image worker task runner is used to schedule image decodes. The |
| // compositor thread may make sync calls to this thread, analogous to the |
| // raster worker threads. |
| scoped_refptr<base::SequencedTaskRunner> image_worker_task_runner; |
| |
| std::unique_ptr<UkmRecorderFactory> ukm_recorder_factory; |
| |
| InitParams(); |
| ~InitParams(); |
| }; |
| |
| static std::unique_ptr<LayerTreeHost> CreateThreaded( |
| scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner, |
| InitParams* params); |
| |
| static std::unique_ptr<LayerTreeHost> CreateSingleThreaded( |
| LayerTreeHostSingleThreadClient* single_thread_client, |
| InitParams* params); |
| |
| virtual ~LayerTreeHost(); |
| |
| // Returns the process global unique identifier for this LayerTreeHost. |
| int GetId() const; |
| |
| // The current source frame number. This is incremented for each main frame |
| // update(commit) pushed to the compositor thread. |
| int SourceFrameNumber() const; |
| |
| // Returns the UIResourceManager used to create UIResources for |
| // UIResourceLayers pushed to the LayerTree. |
| UIResourceManager* GetUIResourceManager() const; |
| |
| // Returns the TaskRunnerProvider used to access the main and compositor |
| // thread task runners. |
| TaskRunnerProvider* GetTaskRunnerProvider() const; |
| |
| // Returns the settings used by this host. |
| const LayerTreeSettings& GetSettings() const; |
| |
| // Sets the LayerTreeMutator interface used to directly mutate the compositor |
| // state on the compositor thread. (Compositor-Worker) |
| void SetLayerTreeMutator(std::unique_ptr<LayerTreeMutator> mutator); |
| |
| // Call this function when you expect there to be a swap buffer. |
| // See swap_promise.h for how to use SwapPromise. |
| void QueueSwapPromise(std::unique_ptr<SwapPromise> swap_promise); |
| |
| // Returns the SwapPromiseManager used to create SwapPromiseMonitors for this |
| // host. |
| SwapPromiseManager* GetSwapPromiseManager(); |
| |
| // Sets whether the content is suitable to use Gpu Rasterization. |
| void SetHasGpuRasterizationTrigger(bool has_trigger); |
| |
| // Visibility and LayerTreeFrameSink ------------------------------- |
| |
| void SetVisible(bool visible); |
| bool IsVisible() const; |
| |
| // Called in response to a LayerTreeFrameSink request made to the client |
| // using LayerTreeHostClient::RequestNewLayerTreeFrameSink. The client will |
| // be informed of the LayerTreeFrameSink initialization status using |
| // DidInitializaLayerTreeFrameSink or DidFailToInitializeLayerTreeFrameSink. |
| // The request is completed when the host successfully initializes an |
| // LayerTreeFrameSink. |
| void SetLayerTreeFrameSink( |
| std::unique_ptr<LayerTreeFrameSink> layer_tree_frame_sink); |
| |
| // Forces the host to immediately release all references to the |
| // LayerTreeFrameSink, if any. Can be safely called any time, but the |
| // compositor should not be visible. |
| std::unique_ptr<LayerTreeFrameSink> ReleaseLayerTreeFrameSink(); |
| |
| // Frame Scheduling (main and compositor frames) requests ------- |
| |
| // Requests a main frame update even if no content has changed. This is used, |
| // for instance in the case of RequestAnimationFrame from blink to ensure the |
| // main frame update is run on the next tick without pre-emptively forcing a |
| // full commit synchronization or layer updates. |
| void SetNeedsAnimate(); |
| |
| // Requests a main frame update and also ensure that the host pulls layer |
| // updates from the client, even if no content might have changed, without |
| // forcing a full commit synchronization. |
| virtual void SetNeedsUpdateLayers(); |
| |
| // Requests that the next main frame update performs a full commit |
| // synchronization. |
| virtual void SetNeedsCommit(); |
| |
| // Returns true after SetNeedsAnimate(), SetNeedsUpdateLayers() or |
| // SetNeedsCommit(), until it is satisfied. |
| bool RequestedMainFramePending(); |
| |
| // Requests that the next frame re-chooses crisp raster scales for all layers. |
| void SetNeedsRecalculateRasterScales(); |
| |
| // Returns true if a main frame with commit synchronization has been |
| // requested. |
| bool CommitRequested() const; |
| |
| // Enables/disables the compositor from requesting main frame updates from the |
| // client. |
| void SetDeferCommits(bool defer_commits); |
| // Returns the value last passed to SetDeferCommits(), though commits may be |
| // deferred also when the local_surface_id_from_parent() is not valid. |
| bool defer_commits() const { return defer_commits_; } |
| |
| // Synchronously performs a main frame update and layer updates. Used only in |
| // single threaded mode when the compositor's internal scheduling is disabled. |
| void LayoutAndUpdateLayers(); |
| |
| // Synchronously performs a complete main frame update, commit and compositor |
| // frame. Used only in single threaded mode when the compositor's internal |
| // scheduling is disabled. |
| void Composite(base::TimeTicks frame_begin_time, bool raster); |
| |
| // Requests a redraw (compositor frame) for the given rect. |
| void SetNeedsRedrawRect(const gfx::Rect& damage_rect); |
| |
| // Requests a main frame (including layer updates) and ensures that this main |
| // frame results in a redraw for the complete viewport when producing the |
| // CompositorFrame. |
| void SetNeedsCommitWithForcedRedraw(); |
| |
| // Input Handling --------------------------------------------- |
| |
| // Notifies the compositor that input from the browser is being throttled till |
| // the next commit. The compositor will prioritize activation of the pending |
| // tree so a commit can be performed. |
| void NotifyInputThrottledUntilCommit(); |
| |
| // Sets the state of the browser controls. (Used for URL bar animations on |
| // android). |
| void UpdateBrowserControlsState(BrowserControlsState constraints, |
| BrowserControlsState current, |
| bool animate); |
| |
| // Returns a reference to the InputHandler used to respond to input events on |
| // the compositor thread. |
| const base::WeakPtr<InputHandler>& GetInputHandler() const; |
| |
| // Informs the compositor that an active fling gesture being processed on the |
| // main thread has been finished. |
| void DidStopFlinging(); |
| |
| // Debugging and benchmarks --------------------------------- |
| void SetDebugState(const LayerTreeDebugState& debug_state); |
| const LayerTreeDebugState& GetDebugState() const; |
| |
| // Returns the id of the benchmark on success, 0 otherwise. |
| int ScheduleMicroBenchmark(const std::string& benchmark_name, |
| std::unique_ptr<base::Value> value, |
| MicroBenchmark::DoneCallback callback); |
| |
| // Returns true if the message was successfully delivered and handled. |
| bool SendMessageToMicroBenchmark(int id, std::unique_ptr<base::Value> value); |
| |
| // When the main thread informs the impl thread that it is ready to commit, |
| // generally it would remain blocked till the main thread state is copied to |
| // the pending tree. Calling this would ensure that the main thread remains |
| // blocked till the pending tree is activated. |
| void SetNextCommitWaitsForActivation(); |
| |
| // The LayerTreeHost tracks whether the content is suitable for Gpu raster. |
| // Calling this will reset it back to not suitable state. |
| void ResetGpuRasterizationTracking(); |
| |
| // Registers a callback that is run when the next frame successfully makes it |
| // to the screen (it's entirely possible some frames may be dropped between |
| // the time this is called and the callback is run). |
| using PresentationTimeCallback = |
| base::OnceCallback<void(const gfx::PresentationFeedback&)>; |
| void RequestPresentationTimeForNextFrame(PresentationTimeCallback callback); |
| |
| void SetRootLayer(scoped_refptr<Layer> root_layer); |
| Layer* root_layer() { return root_layer_.get(); } |
| const Layer* root_layer() const { return root_layer_.get(); } |
| |
| struct CC_EXPORT ViewportLayers { |
| ViewportLayers(); |
| ~ViewportLayers(); |
| scoped_refptr<Layer> overscroll_elasticity; |
| scoped_refptr<Layer> page_scale; |
| scoped_refptr<Layer> inner_viewport_container; |
| scoped_refptr<Layer> outer_viewport_container; |
| scoped_refptr<Layer> inner_viewport_scroll; |
| scoped_refptr<Layer> outer_viewport_scroll; |
| }; |
| void RegisterViewportLayers(const ViewportLayers& viewport_layers); |
| Layer* overscroll_elasticity_layer() const { |
| return viewport_layers_.overscroll_elasticity.get(); |
| } |
| Layer* page_scale_layer() const { return viewport_layers_.page_scale.get(); } |
| Layer* inner_viewport_container_layer() const { |
| return viewport_layers_.inner_viewport_container.get(); |
| } |
| Layer* outer_viewport_container_layer() const { |
| return viewport_layers_.outer_viewport_container.get(); |
| } |
| Layer* inner_viewport_scroll_layer() const { |
| return viewport_layers_.inner_viewport_scroll.get(); |
| } |
| Layer* outer_viewport_scroll_layer() const { |
| return viewport_layers_.outer_viewport_scroll.get(); |
| } |
| |
| void RegisterSelection(const LayerSelection& selection); |
| const LayerSelection& selection() const { return selection_; } |
| |
| void SetHaveScrollEventHandlers(bool have_event_handlers); |
| bool have_scroll_event_handlers() const { |
| return have_scroll_event_handlers_; |
| } |
| |
| void SetEventListenerProperties(EventListenerClass event_class, |
| EventListenerProperties event_properties); |
| EventListenerProperties event_listener_properties( |
| EventListenerClass event_class) const { |
| return event_listener_properties_[static_cast<size_t>(event_class)]; |
| } |
| |
| void SetViewportSizeAndScale( |
| const gfx::Size& device_viewport_size, |
| float device_scale_factor, |
| const viz::LocalSurfaceId& local_surface_id_from_parent); |
| |
| void SetViewportVisibleRect(const gfx::Rect& visible_rect); |
| |
| gfx::Rect viewport_visible_rect() const { return viewport_visible_rect_; } |
| |
| gfx::Size device_viewport_size() const { return device_viewport_size_; } |
| |
| void SetBrowserControlsHeight(float top_height, |
| float bottom_height, |
| bool shrink); |
| void SetBrowserControlsShownRatio(float ratio); |
| void SetOverscrollBehavior(const OverscrollBehavior& overscroll_behavior); |
| |
| void SetPageScaleFactorAndLimits(float page_scale_factor, |
| float min_page_scale_factor, |
| float max_page_scale_factor); |
| float page_scale_factor() const { return page_scale_factor_; } |
| float min_page_scale_factor() const { return min_page_scale_factor_; } |
| float max_page_scale_factor() const { return max_page_scale_factor_; } |
| |
| void set_background_color(SkColor color) { background_color_ = color; } |
| SkColor background_color() const { return background_color_; } |
| |
| void StartPageScaleAnimation(const gfx::Vector2d& target_offset, |
| bool use_anchor, |
| float scale, |
| base::TimeDelta duration); |
| bool HasPendingPageScaleAnimation() const; |
| |
| float device_scale_factor() const { return device_scale_factor_; } |
| |
| void SetRecordingScaleFactor(float recording_scale_factor); |
| |
| float painted_device_scale_factor() const { |
| return painted_device_scale_factor_; |
| } |
| |
| void SetContentSourceId(uint32_t); |
| uint32_t content_source_id() const { return content_source_id_; } |
| |
| // Clears image caches and resets the scheduling history for the content |
| // produced by this host so far. |
| void ClearCachesOnNextCommit(); |
| |
| // If this LayerTreeHost needs a valid viz::LocalSurfaceId then commits will |
| // be deferred until a valid viz::LocalSurfaceId is provided. |
| void SetLocalSurfaceIdFromParent( |
| const viz::LocalSurfaceId& local_surface_id_from_parent); |
| const viz::LocalSurfaceId& local_surface_id_from_parent() const { |
| return local_surface_id_from_parent_; |
| } |
| |
| // Requests the allocation of a new LocalSurfaceId on the compositor thread. |
| void RequestNewLocalSurfaceId(); |
| |
| // Returns the current state of the new LocalSurfaceId request and resets |
| // the state. |
| bool TakeNewLocalSurfaceIdRequest(); |
| bool new_local_surface_id_request_for_testing() const { |
| return new_local_surface_id_request_; |
| } |
| |
| void SetRasterColorSpace(const gfx::ColorSpace& raster_color_space); |
| const gfx::ColorSpace& raster_color_space() const { |
| return raster_color_space_; |
| } |
| |
| // Used externally by blink for setting the PropertyTrees when |
| // UseLayerLists() is true, which also implies that Slimming Paint |
| // v2 is enabled. |
| PropertyTrees* property_trees() { return &property_trees_; } |
| const PropertyTrees* property_trees() const { return &property_trees_; } |
| |
| void SetNeedsDisplayOnAllLayers(); |
| |
| void RegisterLayer(Layer* layer); |
| void UnregisterLayer(Layer* layer); |
| Layer* LayerById(int id) const; |
| |
| size_t NumLayers() const; |
| |
| bool in_update_property_trees() const { return in_update_property_trees_; } |
| bool PaintContent(const LayerList& update_layer_list, |
| bool* content_has_slow_paths, |
| bool* content_has_non_aa_paint); |
| bool in_paint_layer_contents() const { return in_paint_layer_contents_; } |
| |
| void SetHasCopyRequest(bool has_copy_request); |
| bool has_copy_request() const { return has_copy_request_; } |
| |
| void AddSurfaceLayerId(const viz::SurfaceId& surface_id); |
| void RemoveSurfaceLayerId(const viz::SurfaceId& surface_id); |
| base::flat_set<viz::SurfaceId> SurfaceLayerIds() const; |
| |
| void AddLayerShouldPushProperties(Layer* layer); |
| void RemoveLayerShouldPushProperties(Layer* layer); |
| std::unordered_set<Layer*>& LayersThatShouldPushProperties(); |
| bool LayerNeedsPushPropertiesForTesting(Layer* layer) const; |
| |
| void SetPageScaleFromImplSide(float page_scale); |
| void SetElasticOverscrollFromImplSide(gfx::Vector2dF elastic_overscroll); |
| gfx::Vector2dF elastic_overscroll() const { return elastic_overscroll_; } |
| |
| void UpdateHudLayer(bool show_hud_info); |
| HeadsUpDisplayLayer* hud_layer() const { return hud_layer_.get(); } |
| |
| virtual void SetNeedsFullTreeSync(); |
| bool needs_full_tree_sync() const { return needs_full_tree_sync_; } |
| |
| bool needs_surface_ids_sync() const { return needs_surface_ids_sync_; } |
| void set_needs_surface_ids_sync(bool needs_surface_ids_sync) { |
| needs_surface_ids_sync_ = needs_surface_ids_sync; |
| } |
| |
| void SetPropertyTreesNeedRebuild(); |
| |
| void PushPropertyTreesTo(LayerTreeImpl* tree_impl); |
| void PushLayerTreePropertiesTo(LayerTreeImpl* tree_impl); |
| void PushSurfaceIdsTo(LayerTreeImpl* tree_impl); |
| void PushLayerTreeHostPropertiesTo(LayerTreeHostImpl* host_impl); |
| |
| MutatorHost* mutator_host() const { return mutator_host_; } |
| |
| Layer* LayerByElementId(ElementId element_id) const; |
| void RegisterElement(ElementId element_id, |
| ElementListType list_type, |
| Layer* layer); |
| void UnregisterElement(ElementId element_id, ElementListType list_type); |
| void SetElementIdsForTesting(); |
| |
| void BuildPropertyTreesForTesting(); |
| |
| // Layer iterators. |
| LayerListIterator<Layer> begin() const; |
| LayerListIterator<Layer> end() const; |
| LayerListReverseIterator<Layer> rbegin(); |
| LayerListReverseIterator<Layer> rend(); |
| |
| // LayerTreeHost interface to Proxy. |
| void WillBeginMainFrame(); |
| void DidBeginMainFrame(); |
| void BeginMainFrame(const viz::BeginFrameArgs& args); |
| void BeginMainFrameNotExpectedSoon(); |
| void BeginMainFrameNotExpectedUntil(base::TimeTicks time); |
| void AnimateLayers(base::TimeTicks monotonic_frame_begin_time); |
| using VisualStateUpdate = LayerTreeHostClient::VisualStateUpdate; |
| void RequestMainFrameUpdate( |
| VisualStateUpdate requested_update = VisualStateUpdate::kAll); |
| void FinishCommitOnImplThread(LayerTreeHostImpl* host_impl); |
| void WillCommit(); |
| void CommitComplete(); |
| void RequestNewLayerTreeFrameSink(); |
| void DidInitializeLayerTreeFrameSink(); |
| void DidFailToInitializeLayerTreeFrameSink(); |
| virtual std::unique_ptr<LayerTreeHostImpl> CreateLayerTreeHostImpl( |
| LayerTreeHostImplClient* client); |
| void DidLoseLayerTreeFrameSink(); |
| void DidCommitAndDrawFrame() { client_->DidCommitAndDrawFrame(); } |
| void DidReceiveCompositorFrameAck() { |
| client_->DidReceiveCompositorFrameAck(); |
| } |
| bool UpdateLayers(); |
| void DidPresentCompositorFrame( |
| uint32_t frame_token, |
| std::vector<LayerTreeHost::PresentationTimeCallback> callbacks, |
| const gfx::PresentationFeedback& feedback); |
| // Called when the compositor completed page scale animation. |
| void DidCompletePageScaleAnimation(); |
| void ApplyScrollAndScale(ScrollAndScaleSet* info); |
| |
| LayerTreeHostClient* client() { return client_; } |
| |
| bool gpu_rasterization_histogram_recorded() const { |
| return gpu_rasterization_histogram_recorded_; |
| } |
| |
| void CollectRenderingStats(RenderingStats* stats) const; |
| |
| RenderingStatsInstrumentation* rendering_stats_instrumentation() const { |
| return rendering_stats_instrumentation_.get(); |
| } |
| |
| void SetAnimationEvents(std::unique_ptr<MutatorEvents> events); |
| |
| bool has_gpu_rasterization_trigger() const { |
| return has_gpu_rasterization_trigger_; |
| } |
| |
| Proxy* proxy() const { return proxy_.get(); } |
| |
| bool IsSingleThreaded() const; |
| bool IsThreaded() const; |
| |
| // Indicates whether this host is configured to use layer lists |
| // rather than layer trees. This also implies that property trees |
| // are always already built and so cc doesn't have to build them. |
| bool IsUsingLayerLists() const; |
| |
| // MutatorHostClient implementation. |
| bool IsElementInList(ElementId element_id, |
| ElementListType list_type) const override; |
| void SetMutatorsNeedCommit() override; |
| void SetMutatorsNeedRebuildPropertyTrees() override; |
| void SetElementFilterMutated(ElementId element_id, |
| ElementListType list_type, |
| const FilterOperations& filters) override; |
| void SetElementOpacityMutated(ElementId element_id, |
| ElementListType list_type, |
| float opacity) override; |
| void SetElementTransformMutated(ElementId element_id, |
| ElementListType list_type, |
| const gfx::Transform& transform) override; |
| void SetElementScrollOffsetMutated( |
| ElementId element_id, |
| ElementListType list_type, |
| const gfx::ScrollOffset& scroll_offset) override; |
| |
| void ElementIsAnimatingChanged(ElementId element_id, |
| ElementListType list_type, |
| const PropertyAnimationState& mask, |
| const PropertyAnimationState& state) override; |
| |
| void ScrollOffsetAnimationFinished() override {} |
| gfx::ScrollOffset GetScrollOffsetForAnimation( |
| ElementId element_id) const override; |
| |
| void QueueImageDecode(const PaintImage& image, |
| base::OnceCallback<void(bool)> callback); |
| void ImageDecodesFinished(const std::vector<std::pair<int, bool>>& results); |
| |
| void RequestBeginMainFrameNotExpected(bool new_state); |
| |
| float recording_scale_factor() const { return recording_scale_factor_; } |
| |
| void SetURLForUkm(const GURL& url); |
| |
| void SetRenderFrameObserver( |
| std::unique_ptr<RenderFrameMetadataObserver> observer); |
| |
| protected: |
| LayerTreeHost(InitParams* params, CompositorMode mode); |
| |
| void InitializeThreaded( |
| scoped_refptr<base::SingleThreadTaskRunner> main_task_runner, |
| scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner); |
| void InitializeSingleThreaded( |
| LayerTreeHostSingleThreadClient* single_thread_client, |
| scoped_refptr<base::SingleThreadTaskRunner> main_task_runner); |
| void InitializeForTesting( |
| std::unique_ptr<TaskRunnerProvider> task_runner_provider, |
| std::unique_ptr<Proxy> proxy_for_testing); |
| void SetTaskRunnerProviderForTesting( |
| std::unique_ptr<TaskRunnerProvider> task_runner_provider); |
| void SetUIResourceManagerForTesting( |
| std::unique_ptr<UIResourceManager> ui_resource_manager); |
| |
| // task_graph_runner() returns a valid value only until the LayerTreeHostImpl |
| // is created in CreateLayerTreeHostImpl(). |
| TaskGraphRunner* task_graph_runner() const { return task_graph_runner_; } |
| |
| void OnCommitForSwapPromises(); |
| |
| void RecordGpuRasterizationHistogram(const LayerTreeHostImpl* host_impl); |
| |
| MicroBenchmarkController micro_benchmark_controller_; |
| |
| base::WeakPtr<InputHandler> input_handler_weak_ptr_; |
| |
| scoped_refptr<base::SequencedTaskRunner> image_worker_task_runner_; |
| std::unique_ptr<UkmRecorderFactory> ukm_recorder_factory_; |
| |
| private: |
| friend class LayerTreeHostSerializationTest; |
| |
| // This is the number of consecutive frames in which we want the content to be |
| // free of slow-paths before toggling the flag. |
| enum { kNumFramesToConsiderBeforeRemovingSlowPathFlag = 60 }; |
| |
| void ApplyViewportDeltas(ScrollAndScaleSet* info); |
| void RecordWheelAndTouchScrollingCount(ScrollAndScaleSet* info); |
| void ApplyPageScaleDeltaFromImplSide(float page_scale_delta); |
| void InitializeProxy(std::unique_ptr<Proxy> proxy); |
| |
| bool DoUpdateLayers(Layer* root_layer); |
| |
| void UpdateDeferCommitsInternal(); |
| |
| const CompositorMode compositor_mode_; |
| |
| std::unique_ptr<UIResourceManager> ui_resource_manager_; |
| |
| LayerTreeHostClient* client_; |
| std::unique_ptr<Proxy> proxy_; |
| std::unique_ptr<TaskRunnerProvider> task_runner_provider_; |
| |
| int source_frame_number_ = 0U; |
| std::unique_ptr<RenderingStatsInstrumentation> |
| rendering_stats_instrumentation_; |
| |
| SwapPromiseManager swap_promise_manager_; |
| |
| // |current_layer_tree_frame_sink_| can't be updated until we've successfully |
| // initialized a new LayerTreeFrameSink. |new_layer_tree_frame_sink_| |
| // contains the new LayerTreeFrameSink that is currently being initialized. |
| // If initialization is successful then |new_layer_tree_frame_sink_| replaces |
| // |current_layer_tree_frame_sink_|. |
| std::unique_ptr<LayerTreeFrameSink> new_layer_tree_frame_sink_; |
| std::unique_ptr<LayerTreeFrameSink> current_layer_tree_frame_sink_; |
| |
| const LayerTreeSettings settings_; |
| LayerTreeDebugState debug_state_; |
| |
| bool visible_ = false; |
| |
| bool has_gpu_rasterization_trigger_ = false; |
| bool content_has_slow_paths_ = false; |
| bool content_has_non_aa_paint_ = false; |
| bool gpu_rasterization_histogram_recorded_ = false; |
| |
| // If set, then page scale animation has completed, but the client hasn't been |
| // notified about it yet. |
| bool did_complete_scale_animation_ = false; |
| |
| int id_; |
| bool next_commit_forces_redraw_ = false; |
| bool next_commit_forces_recalculate_raster_scales_ = false; |
| // Track when we're inside a main frame to see if compositor is being |
| // destroyed midway which causes a crash. crbug.com/654672 |
| bool inside_main_frame_ = false; |
| |
| TaskGraphRunner* task_graph_runner_; |
| |
| uint32_t num_consecutive_frames_without_slow_paths_ = 0; |
| |
| scoped_refptr<Layer> root_layer_; |
| |
| ViewportLayers viewport_layers_; |
| |
| float top_controls_height_ = 0.f; |
| float top_controls_shown_ratio_ = 0.f; |
| bool browser_controls_shrink_blink_size_ = false; |
| OverscrollBehavior overscroll_behavior_; |
| |
| float bottom_controls_height_ = 0.f; |
| |
| float device_scale_factor_ = 1.f; |
| float painted_device_scale_factor_ = 1.f; |
| float recording_scale_factor_ = 1.f; |
| float page_scale_factor_ = 1.f; |
| float min_page_scale_factor_ = 1.f; |
| float max_page_scale_factor_ = 1.f; |
| |
| int raster_color_space_id_ = -1; |
| gfx::ColorSpace raster_color_space_; |
| |
| bool clear_caches_on_next_commit_ = false; |
| uint32_t content_source_id_; |
| viz::LocalSurfaceId local_surface_id_from_parent_; |
| // Used to detect surface invariant violations. |
| bool has_pushed_local_surface_id_from_parent_ = false; |
| bool new_local_surface_id_request_ = false; |
| bool defer_commits_ = false; |
| |
| SkColor background_color_ = SK_ColorWHITE; |
| |
| LayerSelection selection_; |
| |
| gfx::Size device_viewport_size_; |
| |
| gfx::Rect viewport_visible_rect_; |
| |
| bool have_scroll_event_handlers_ = false; |
| EventListenerProperties event_listener_properties_[static_cast<size_t>( |
| EventListenerClass::kNumClasses)]; |
| |
| std::unique_ptr<PendingPageScaleAnimation> pending_page_scale_animation_; |
| |
| PropertyTrees property_trees_; |
| |
| bool needs_full_tree_sync_ = true; |
| |
| bool needs_surface_ids_sync_ = false; |
| |
| gfx::Vector2dF elastic_overscroll_; |
| |
| scoped_refptr<HeadsUpDisplayLayer> hud_layer_; |
| |
| // The number of SurfaceLayers that have fallback set to viz::SurfaceId. |
| base::flat_map<viz::SurfaceId, int> surface_layer_ids_; |
| |
| // Set of layers that need to push properties. |
| std::unordered_set<Layer*> layers_that_should_push_properties_; |
| |
| // Layer id to Layer map. |
| std::unordered_map<int, Layer*> layer_id_map_; |
| |
| std::unordered_map<ElementId, Layer*, ElementIdHash> element_layers_map_; |
| |
| bool in_paint_layer_contents_ = false; |
| bool in_update_property_trees_ = false; |
| |
| // This is true if atleast one layer in the layer tree has a copy request. We |
| // use this bool to decide whether we need to compute subtree has copy request |
| // for every layer during property tree building. |
| bool has_copy_request_ = false; |
| |
| MutatorHost* mutator_host_; |
| |
| std::vector<std::pair<PaintImage, base::OnceCallback<void(bool)>>> |
| queued_image_decodes_; |
| std::unordered_map<int, base::OnceCallback<void(bool)>> |
| pending_image_decodes_; |
| |
| // Presentation time callbacks requested for the next frame are initially |
| // added here. |
| std::vector<PresentationTimeCallback> pending_presentation_time_callbacks_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LayerTreeHost); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_TREES_LAYER_TREE_HOST_H_ |