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 #include "ui/base/android/window_android_compositor.h"
  20
  21 class SkBitmap;
  22 struct ANativeWindow;
  23
  24 namespace cc {
  25 class InputHandlerClient;
  26 class Layer;
  27 class LayerTreeHost;
  28 }
  29
  30 namespace content {
  31 class CompositorClient;
  32 class GraphicsContext;
  33
  34 // -----------------------------------------------------------------------------
  35 // Browser-side compositor that manages a tree of content and UI layers.
  36 // -----------------------------------------------------------------------------
  37 class CONTENT_EXPORT CompositorImpl
  38     : public Compositor,
  39       public cc::LayerTreeHostClient,
  40       public cc::LayerTreeHostSingleThreadClient,
  41       public ImageTransportFactoryAndroidObserver,
  42       public ui::WindowAndroidCompositor {
  43  public:
  44   CompositorImpl(CompositorClient* client, gfx::NativeWindow root_window);
  45   virtual ~CompositorImpl();
  46
  47   static bool IsInitialized();
  48
  49   // Creates a surface texture and returns a surface texture id. Returns -1 on
  50   // failure.
  51   static int CreateSurfaceTexture(int child_process_id);
  52
  53   // Destroy all surface textures associated with |child_process_id|.
  54   static void DestroyAllSurfaceTextures(int child_process_id);
  55
  56   // Compositor implementation.
  57   virtual void SetRootLayer(scoped_refptr<cc::Layer> root) OVERRIDE;
  58   virtual void SetWindowSurface(ANativeWindow* window) OVERRIDE;
  59   virtual void SetSurface(jobject surface) OVERRIDE;
  60   virtual void SetVisible(bool visible) OVERRIDE;
  61   virtual void setDeviceScaleFactor(float factor) OVERRIDE;
  62   virtual void SetWindowBounds(const gfx::Size& size) OVERRIDE;
  63   virtual void SetHasTransparentBackground(bool flag) OVERRIDE;
  64   virtual bool CompositeAndReadback(
  65       void *pixels, const gfx::Rect& rect) OVERRIDE;
  66   virtual void Composite() OVERRIDE;
  67   virtual cc::UIResourceId GenerateUIResource(const SkBitmap& bitmap,
  68                                               bool is_transient) OVERRIDE;
  69   virtual cc::UIResourceId GenerateCompressedUIResource(const gfx::Size& size,
  70                                                         void* pixels,
  71                                                         bool is_transient)
  72       OVERRIDE;
  73   virtual void DeleteUIResource(cc::UIResourceId resource_id) OVERRIDE;
  74
  75   // LayerTreeHostClient implementation.
  76   virtual void WillBeginMainFrame(int frame_id) OVERRIDE {}
  77   virtual void DidBeginMainFrame() OVERRIDE {}
  78   virtual void Animate(base::TimeTicks frame_begin_time) OVERRIDE {}
  79   virtual void Layout() OVERRIDE {}
  80   virtual void ApplyScrollAndScale(const gfx::Vector2d& scroll_delta,
  81                                    float page_scale) OVERRIDE {}
  82   virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface(bool fallback)
  83       OVERRIDE;
  84   virtual void DidInitializeOutputSurface() OVERRIDE {}
  85   virtual void WillCommit() OVERRIDE {}
  86   virtual void DidCommit() OVERRIDE;
  87   virtual void DidCommitAndDrawFrame() OVERRIDE {}
  88   virtual void DidCompleteSwapBuffers() OVERRIDE;
  89
  90   // LayerTreeHostSingleThreadClient implementation.
  91   virtual void ScheduleComposite() OVERRIDE;
  92   virtual void ScheduleAnimation() OVERRIDE;
  93   virtual void DidPostSwapBuffers() OVERRIDE;
  94   virtual void DidAbortSwapBuffers() OVERRIDE;
  95
  96   // ImageTransportFactoryAndroidObserver implementation.
  97   virtual void OnLostResources() OVERRIDE;
  98
  99   // WindowAndroidCompositor implementation.
 100   virtual void AttachLayerForReadback(scoped_refptr<cc::Layer> layer) OVERRIDE;
 101
 102  private:
 103   cc::UIResourceId GenerateUIResourceFromUIResourceBitmap(
 104       const cc::UIResourceBitmap& bitmap,
 105       bool is_transient);
 106
 107   scoped_refptr<cc::Layer> root_layer_;
 108   scoped_ptr<cc::LayerTreeHost> host_;
 109
 110   gfx::Size size_;
 111   bool has_transparent_background_;
 112   float device_scale_factor_;
 113
 114   ANativeWindow* window_;
 115   int surface_id_;
 116
 117   CompositorClient* client_;
 118
 119   typedef base::ScopedPtrHashMap<cc::UIResourceId, cc::UIResourceClient>
 120       UIResourceMap;
 121   UIResourceMap ui_resource_map_;
 122
 123   gfx::NativeWindow root_window_;
 124
 125   DISALLOW_COPY_AND_ASSIGN(CompositorImpl);
 126 };
 127
 128 } // namespace content
 129
 130 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_