content/renderer/gpu/render_widget_compositor.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_
   6 #define CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_
   7
   8 #include "base/callback.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "base/time/time.h"
  11 #include "base/values.h"
  12 #include "cc/input/top_controls_state.h"
  13 #include "cc/output/swap_promise.h"
  14 #include "cc/trees/layer_tree_host_client.h"
  15 #include "cc/trees/layer_tree_host_single_thread_client.h"
  16 #include "cc/trees/layer_tree_settings.h"
  17 #include "cc/trees/swap_promise_monitor.h"
  18 #include "content/common/content_export.h"
  19 #include "content/renderer/gpu/compositor_dependencies.h"
  20 #include "third_party/WebKit/public/platform/WebLayerTreeView.h"
  21 #include "third_party/skia/include/core/SkBitmap.h"
  22 #include "ui/gfx/geometry/rect.h"
  23
  24 namespace ui {
  25 class LatencyInfo;
  26 }
  27
  28 namespace cc {
  29 class CopyOutputRequest;
  30 class InputHandler;
  31 class Layer;
  32 class LayerTreeHost;
  33 }
  34
  35 namespace content {
  36 class RenderWidget;
  37
  38 class CONTENT_EXPORT RenderWidgetCompositor
  39     : NON_EXPORTED_BASE(public blink::WebLayerTreeView),
  40       NON_EXPORTED_BASE(public cc::LayerTreeHostClient),
  41       NON_EXPORTED_BASE(public cc::LayerTreeHostSingleThreadClient) {
  42  public:
  43   // Attempt to construct and initialize a compositor instance for the widget
  44   // with the given settings. Returns NULL if initialization fails.
  45   static scoped_ptr<RenderWidgetCompositor> Create(
  46       RenderWidget* widget,
  47       CompositorDependencies* compositor_deps);
  48
  49   virtual ~RenderWidgetCompositor();
  50
  51   const base::WeakPtr<cc::InputHandler>& GetInputHandler();
  52   bool BeginMainFrameRequested() const;
  53   void SetNeedsDisplayOnAllLayers();
  54   void SetRasterizeOnlyVisibleContent();
  55   void SetNeedsRedrawRect(gfx::Rect damage_rect);
  56   // Like setNeedsRedraw but forces the frame to be drawn, without early-outs.
  57   // Redraw will be forced after the next commit
  58   void SetNeedsForcedRedraw();
  59   // Calling CreateLatencyInfoSwapPromiseMonitor() to get a scoped
  60   // LatencyInfoSwapPromiseMonitor. During the life time of the
  61   // LatencyInfoSwapPromiseMonitor, if SetNeedsCommit() or
  62   // SetNeedsUpdateLayers() is called on LayerTreeHost, the original latency
  63   // info will be turned into a LatencyInfoSwapPromise.
  64   scoped_ptr<cc::SwapPromiseMonitor> CreateLatencyInfoSwapPromiseMonitor(
  65       ui::LatencyInfo* latency);
  66   // Calling QueueSwapPromise() to directly queue a SwapPromise into
  67   // LayerTreeHost.
  68   void QueueSwapPromise(scoped_ptr<cc::SwapPromise> swap_promise);
  69   int GetSourceFrameNumber() const;
  70   void SetNeedsUpdateLayers();
  71   void SetNeedsCommit();
  72   void NotifyInputThrottledUntilCommit();
  73   const cc::Layer* GetRootLayer() const;
  74   int ScheduleMicroBenchmark(
  75       const std::string& name,
  76       scoped_ptr<base::Value> value,
  77       const base::Callback<void(scoped_ptr<base::Value>)>& callback);
  78   bool SendMessageToMicroBenchmark(int id, scoped_ptr<base::Value> value);
  79   void StartCompositor();
  80   void SetSurfaceIdNamespace(uint32_t surface_id_namespace);
  81
  82   // WebLayerTreeView implementation.
  83   virtual void setRootLayer(const blink::WebLayer& layer);
  84   virtual void clearRootLayer();
  85   virtual void attachCompositorAnimationTimeline(
  86       blink::WebCompositorAnimationTimeline* compositor_timeline);
  87   virtual void detachCompositorAnimationTimeline(
  88       blink::WebCompositorAnimationTimeline* compositor_timeline);
  89   virtual void setViewportSize(
  90       const blink::WebSize& unused_deprecated,
  91       const blink::WebSize& device_viewport_size);
  92   virtual void setViewportSize(const blink::WebSize& device_viewport_size);
  93   virtual blink::WebFloatPoint adjustEventPointForPinchZoom(
  94       const blink::WebFloatPoint& point) const;
  95   virtual void setDeviceScaleFactor(float device_scale);
  96   virtual float deviceScaleFactor() const;
  97   virtual void setBackgroundColor(blink::WebColor color);
  98   virtual void setHasTransparentBackground(bool transparent);
  99   virtual void setVisible(bool visible);
 100   virtual void setPageScaleFactorAndLimits(float page_scale_factor,
 101                                            float minimum,
 102                                            float maximum);
 103   virtual void startPageScaleAnimation(const blink::WebPoint& destination,
 104                                        bool use_anchor,
 105                                        float new_page_scale,
 106                                        double duration_sec);
 107   virtual void heuristicsForGpuRasterizationUpdated(bool matches_heuristics);
 108   virtual void setNeedsAnimate();
 109   virtual void setNeedsBeginFrame();
 110   virtual void setNeedsCompositorUpdate();
 111   virtual void didStopFlinging();
 112   virtual void layoutAndPaintAsync(
 113       blink::WebLayoutAndPaintAsyncCallback* callback);
 114   virtual void compositeAndReadbackAsync(
 115       blink::WebCompositeAndReadbackAsyncCallback* callback);
 116   virtual void setDeferCommits(bool defer_commits);
 117   virtual void registerForAnimations(blink::WebLayer* layer);
 118   virtual void registerViewportLayers(
 119       const blink::WebLayer* overscrollElasticityLayer,
 120       const blink::WebLayer* pageScaleLayer,
 121       const blink::WebLayer* innerViewportScrollLayer,
 122       const blink::WebLayer* outerViewportScrollLayer) override;
 123   virtual void clearViewportLayers() override;
 124   virtual void registerSelection(const blink::WebSelection& selection) override;
 125   virtual void clearSelection() override;
 126   virtual int layerTreeId() const;
 127   virtual void setShowFPSCounter(bool show);
 128   virtual void setShowPaintRects(bool show);
 129   virtual void setShowDebugBorders(bool show);
 130   virtual void setShowScrollBottleneckRects(bool show);
 131
 132   virtual void updateTopControlsState(blink::WebTopControlsState constraints,
 133                               blink::WebTopControlsState current,
 134                               bool animate);
 135   virtual void setTopControlsHeight(float height, bool shrink);
 136   virtual void setTopControlsShownRatio(float);
 137   virtual void setHidePinchScrollbarsNearMinScale(bool) override;
 138
 139   // cc::LayerTreeHostClient implementation.
 140   void WillBeginMainFrame() override;
 141   void DidBeginMainFrame() override;
 142   void BeginMainFrame(const cc::BeginFrameArgs& args) override;
 143   void BeginMainFrameNotExpectedSoon() override;
 144   void Layout() override;
 145   void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
 146                            const gfx::Vector2dF& outer_delta,
 147                            const gfx::Vector2dF& elastic_overscroll_delta,
 148                            float page_scale,
 149                            float top_controls_delta) override;
 150   void RequestNewOutputSurface() override;
 151   void DidInitializeOutputSurface() override;
 152   void DidFailToInitializeOutputSurface() override;
 153   void WillCommit() override;
 154   void DidCommit() override;
 155   void DidCommitAndDrawFrame() override;
 156   void DidCompleteSwapBuffers() override;
 157   void DidCompletePageScaleAnimation() override;
 158   void RateLimitSharedMainThreadContext() override;
 159   void RecordFrameTimingEvents(
 160       scoped_ptr<cc::FrameTimingTracker::CompositeTimingSet> composite_events,
 161       scoped_ptr<cc::FrameTimingTracker::MainFrameTimingSet> main_frame_events)
 162       override;
 163
 164   // cc::LayerTreeHostSingleThreadClient implementation.
 165   void ScheduleAnimation() override;
 166   void DidPostSwapBuffers() override;
 167   void DidAbortSwapBuffers() override;
 168
 169   enum {
 170     OUTPUT_SURFACE_RETRIES_BEFORE_FALLBACK = 4,
 171     MAX_OUTPUT_SURFACE_RETRIES = 5,
 172   };
 173
 174  protected:
 175   RenderWidgetCompositor(RenderWidget* widget,
 176                          CompositorDependencies* compositor_deps);
 177
 178   void Initialize();
 179   cc::LayerTreeHost* layer_tree_host() { return layer_tree_host_.get(); }
 180
 181  private:
 182   void LayoutAndUpdateLayers();
 183   void InvokeLayoutAndPaintCallback();
 184   bool CompositeIsSynchronous() const;
 185   void SynchronouslyComposite();
 186
 187   int num_failed_recreate_attempts_;
 188   RenderWidget* widget_;
 189   CompositorDependencies* compositor_deps_;
 190   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
 191
 192   blink::WebLayoutAndPaintAsyncCallback* layout_and_paint_async_callback_;
 193   scoped_ptr<cc::CopyOutputRequest> temporary_copy_output_request_;
 194
 195   base::WeakPtrFactory<RenderWidgetCompositor> weak_factory_;
 196 };
 197
 198 }  // namespace content
 199
 200 #endif  // CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_