src/content/browser/renderer_host/compositor_impl_android.h

   1 // Copyright (c) 2012 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_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/containers/scoped_ptr_hash_map.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "cc/resources/ui_resource_client.h"
  13 #include "cc/trees/layer_tree_host_client.h"
  14 #include "cc/trees/layer_tree_host_single_thread_client.h"
  15 #include "content/browser/renderer_host/image_transport_factory_android.h"
  16 #include "content/common/content_export.h"
  17 #include "content/public/browser/android/compositor.h"
  18 #include "third_party/khronos/GLES2/gl2.h"
  19
  20 class SkBitmap;
  21 struct ANativeWindow;
  22
  23 namespace cc {
  24 class InputHandlerClient;
  25 class Layer;
  26 class LayerTreeHost;
  27 }
  28
  29 namespace content {
  30 class CompositorClient;
  31 class GraphicsContext;
  32
  33 // -----------------------------------------------------------------------------
  34 // Browser-side compositor that manages a tree of content and UI layers.
  35 // -----------------------------------------------------------------------------
  36 class CONTENT_EXPORT CompositorImpl
  37     : public Compositor,
  38       public cc::LayerTreeHostClient,
  39       public cc::LayerTreeHostSingleThreadClient,
  40       public ImageTransportFactoryAndroidObserver {
  41  public:
  42   CompositorImpl(CompositorClient* client, gfx::NativeWindow root_window);
  43   virtual ~CompositorImpl();
  44
  45   static bool IsInitialized();
  46
  47   // Returns the Java Surface object for a given view surface id.
  48   static jobject GetSurface(int surface_id);
  49
  50   // Compositor implementation.
  51   virtual void SetRootLayer(scoped_refptr<cc::Layer> root) OVERRIDE;
  52   virtual void SetWindowSurface(ANativeWindow* window) OVERRIDE;
  53   virtual void SetSurface(jobject surface) OVERRIDE;
  54   virtual void SetVisible(bool visible) OVERRIDE;
  55   virtual void setDeviceScaleFactor(float factor) OVERRIDE;
  56   virtual void SetWindowBounds(const gfx::Size& size) OVERRIDE;
  57   virtual void SetHasTransparentBackground(bool flag) OVERRIDE;
  58   virtual bool CompositeAndReadback(
  59       void *pixels, const gfx::Rect& rect) OVERRIDE;
  60   virtual void Composite() OVERRIDE;
  61   virtual cc::UIResourceId GenerateUIResource(const SkBitmap& bitmap,
  62                                               bool is_transient) OVERRIDE;
  63   virtual cc::UIResourceId GenerateCompressedUIResource(const gfx::Size& size,
  64                                                         void* pixels,
  65                                                         bool is_transient)
  66       OVERRIDE;
  67   virtual void DeleteUIResource(cc::UIResourceId resource_id) OVERRIDE;
  68
  69   // LayerTreeHostClient implementation.
  70   virtual void WillBeginMainFrame(int frame_id) OVERRIDE {}
  71   virtual void DidBeginMainFrame() OVERRIDE {}
  72   virtual void Animate(base::TimeTicks frame_begin_time) OVERRIDE {}
  73   virtual void Layout() OVERRIDE {}
  74   virtual void ApplyScrollAndScale(const gfx::Vector2d& scroll_delta,
  75                                    float page_scale) OVERRIDE {}
  76   virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface(bool fallback)
  77       OVERRIDE;
  78   virtual void DidInitializeOutputSurface(bool success) OVERRIDE {}
  79   virtual void WillCommit() OVERRIDE {}
  80   virtual void DidCommit() OVERRIDE;
  81   virtual void DidCommitAndDrawFrame() OVERRIDE {}
  82   virtual void DidCompleteSwapBuffers() OVERRIDE;
  83   virtual scoped_refptr<cc::ContextProvider>
  84       OffscreenContextProvider() OVERRIDE;
  85
  86   // LayerTreeHostSingleThreadClient implementation.
  87   virtual void ScheduleComposite() OVERRIDE;
  88   virtual void ScheduleAnimation() OVERRIDE;
  89   virtual void DidPostSwapBuffers() OVERRIDE;
  90   virtual void DidAbortSwapBuffers() OVERRIDE;
  91
  92   // ImageTransportFactoryAndroidObserver implementation.
  93   virtual void OnLostResources() OVERRIDE;
  94
  95  private:
  96   cc::UIResourceId GenerateUIResourceFromUIResourceBitmap(
  97       const cc::UIResourceBitmap& bitmap,
  98       bool is_transient);
  99
 100   scoped_refptr<cc::Layer> root_layer_;
 101   scoped_ptr<cc::LayerTreeHost> host_;
 102
 103   gfx::Size size_;
 104   bool has_transparent_background_;
 105   float device_scale_factor_;
 106
 107   ANativeWindow* window_;
 108   int surface_id_;
 109
 110   CompositorClient* client_;
 111
 112   scoped_refptr<cc::ContextProvider> null_offscreen_context_provider_;
 113
 114   typedef base::ScopedPtrHashMap<cc::UIResourceId, cc::UIResourceClient>
 115       UIResourceMap;
 116   UIResourceMap ui_resource_map_;
 117
 118   gfx::NativeWindow root_window_;
 119
 120   DISALLOW_COPY_AND_ASSIGN(CompositorImpl);
 121 };
 122
 123 } // namespace content
 124
 125 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_