src/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/base/swap_promise.h"
  13 #include "cc/base/swap_promise_monitor.h"
  14 #include "cc/input/top_controls_state.h"
  15 #include "cc/trees/layer_tree_host_client.h"
  16 #include "cc/trees/layer_tree_host_single_thread_client.h"
  17 #include "cc/trees/layer_tree_settings.h"
  18 #include "content/common/content_export.h"
  19 #include "third_party/WebKit/public/platform/WebLayerTreeView.h"
  20 #include "third_party/skia/include/core/SkBitmap.h"
  21 #include "ui/gfx/rect.h"
  22
  23 namespace ui {
  24 struct LatencyInfo;
  25 }
  26
  27 namespace cc {
  28 class InputHandler;
  29 class Layer;
  30 class LayerTreeHost;
  31 }
  32
  33 namespace content {
  34 class RenderWidget;
  35
  36 class CONTENT_EXPORT RenderWidgetCompositor
  37     : NON_EXPORTED_BASE(public blink::WebLayerTreeView),
  38       NON_EXPORTED_BASE(public cc::LayerTreeHostClient),
  39       NON_EXPORTED_BASE(public cc::LayerTreeHostSingleThreadClient) {
  40  public:
  41   // Attempt to construct and initialize a compositor instance for the widget
  42   // with the given settings. Returns NULL if initialization fails.
  43   static scoped_ptr<RenderWidgetCompositor> Create(RenderWidget* widget,
  44                                                    bool threaded);
  45
  46   virtual ~RenderWidgetCompositor();
  47
  48   const base::WeakPtr<cc::InputHandler>& GetInputHandler();
  49   bool BeginMainFrameRequested() const;
  50   void SetNeedsDisplayOnAllLayers();
  51   void SetRasterizeOnlyVisibleContent();
  52   void UpdateTopControlsState(cc::TopControlsState constraints,
  53                               cc::TopControlsState current,
  54                               bool animate);
  55   void SetTopControlsLayoutHeight(float height);
  56   void SetNeedsRedrawRect(gfx::Rect damage_rect);
  57   // Like setNeedsRedraw but forces the frame to be drawn, without early-outs.
  58   // Redraw will be forced after the next commit
  59   void SetNeedsForcedRedraw();
  60   // Calling CreateLatencyInfoSwapPromiseMonitor() to get a scoped
  61   // LatencyInfoSwapPromiseMonitor. During the life time of the
  62   // LatencyInfoSwapPromiseMonitor, if SetNeedsCommit() or SetNeedsUpdateLayer()
  63   // is called on LayerTreeHost, the original latency info will be turned
  64   // into a LatencyInfoSwapPromise.
  65   scoped_ptr<cc::SwapPromiseMonitor> CreateLatencyInfoSwapPromiseMonitor(
  66       ui::LatencyInfo* latency);
  67   // Calling QueueSwapPromise() to directly queue a SwapPromise into
  68   // LayerTreeHost.
  69   void QueueSwapPromise(scoped_ptr<cc::SwapPromise> swap_promise);
  70   int GetLayerTreeId() const;
  71   int GetSourceFrameNumber() const;
  72   void SetNeedsCommit();
  73   void NotifyInputThrottledUntilCommit();
  74   const cc::Layer* GetRootLayer() const;
  75   int ScheduleMicroBenchmark(
  76       const std::string& name,
  77       scoped_ptr<base::Value> value,
  78       const base::Callback<void(scoped_ptr<base::Value>)>& callback);
  79   bool SendMessageToMicroBenchmark(int id, scoped_ptr<base::Value> value);
  80
  81   // WebLayerTreeView implementation.
  82   virtual void setSurfaceReady();
  83   virtual void setRootLayer(const blink::WebLayer& layer);
  84   virtual void clearRootLayer();
  85   virtual void setViewportSize(
  86       const blink::WebSize& unused_deprecated,
  87       const blink::WebSize& device_viewport_size);
  88   virtual void setViewportSize(const blink::WebSize& device_viewport_size);
  89   virtual blink::WebSize layoutViewportSize() const;
  90   virtual blink::WebSize deviceViewportSize() const;
  91   virtual blink::WebFloatPoint adjustEventPointForPinchZoom(
  92       const blink::WebFloatPoint& point) const;
  93   virtual void setDeviceScaleFactor(float device_scale);
  94   virtual float deviceScaleFactor() const;
  95   virtual void setBackgroundColor(blink::WebColor color);
  96   virtual void setHasTransparentBackground(bool transparent);
  97   virtual void setOverhangBitmap(const SkBitmap& bitmap);
  98   virtual void setVisible(bool visible);
  99   virtual void setPageScaleFactorAndLimits(float page_scale_factor,
 100                                            float minimum,
 101                                            float maximum);
 102   virtual void startPageScaleAnimation(const blink::WebPoint& destination,
 103                                        bool use_anchor,
 104                                        float new_page_scale,
 105                                        double duration_sec);
 106   virtual void heuristicsForGpuRasterizationUpdated(bool matches_heuristics);
 107   virtual void setNeedsAnimate();
 108   virtual bool commitRequested() const;
 109   virtual void didStopFlinging();
 110   virtual void compositeAndReadbackAsync(
 111       blink::WebCompositeAndReadbackAsyncCallback* callback);
 112   virtual void finishAllRendering();
 113   virtual void setDeferCommits(bool defer_commits);
 114   virtual void registerForAnimations(blink::WebLayer* layer);
 115   virtual void registerViewportLayers(
 116       const blink::WebLayer* pageScaleLayer,
 117       const blink::WebLayer* innerViewportScrollLayer,
 118       const blink::WebLayer* outerViewportScrollLayer) OVERRIDE;
 119   virtual void clearViewportLayers() OVERRIDE;
 120   virtual void registerSelection(const blink::WebSelectionBound& start,
 121                                  const blink::WebSelectionBound& end) OVERRIDE;
 122   virtual void clearSelection() OVERRIDE;
 123   virtual void setShowFPSCounter(bool show);
 124   virtual void setShowPaintRects(bool show);
 125   virtual void setShowDebugBorders(bool show);
 126   virtual void setContinuousPaintingEnabled(bool enabled);
 127   virtual void setShowScrollBottleneckRects(bool show);
 128   virtual void setTopControlsContentOffset(float);
 129
 130   // cc::LayerTreeHostClient implementation.
 131   virtual void WillBeginMainFrame(int frame_id) OVERRIDE;
 132   virtual void DidBeginMainFrame() OVERRIDE;
 133   virtual void BeginMainFrame(const cc::BeginFrameArgs& args) OVERRIDE;
 134   virtual void Layout() OVERRIDE;
 135   virtual void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
 136                                    float page_scale,
 137                                    float top_controls_delta) OVERRIDE;
 138   virtual void RequestNewOutputSurface(bool fallback) OVERRIDE;
 139   virtual void DidInitializeOutputSurface() OVERRIDE;
 140   virtual void WillCommit() OVERRIDE;
 141   virtual void DidCommit() OVERRIDE;
 142   virtual void DidCommitAndDrawFrame() OVERRIDE;
 143   virtual void DidCompleteSwapBuffers() OVERRIDE;
 144   virtual void RateLimitSharedMainThreadContext() OVERRIDE;
 145
 146   // cc::LayerTreeHostSingleThreadClient implementation.
 147   virtual void ScheduleAnimation() OVERRIDE;
 148   virtual void DidPostSwapBuffers() OVERRIDE;
 149   virtual void DidAbortSwapBuffers() OVERRIDE;
 150
 151  private:
 152   RenderWidgetCompositor(RenderWidget* widget, bool threaded);
 153
 154   void Initialize(cc::LayerTreeSettings settings);
 155
 156   bool threaded_;
 157   RenderWidget* widget_;
 158   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
 159
 160   bool send_v8_idle_notification_after_commit_;
 161   base::TimeTicks begin_main_frame_time_;
 162   // The time interval between BeginMainFrame calls, provided by the scheduler.
 163   base::TimeDelta begin_main_frame_interval_;
 164 };
 165
 166 }  // namespace content
 167
 168 #endif  // CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_