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/memory/scoped_ptr.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "cc/trees/layer_tree_host_client.h"
  13 #include "content/common/content_export.h"
  14 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  15 #include "content/public/browser/android/compositor.h"
  16
  17 struct ANativeWindow;
  18
  19 namespace cc {
  20 class InputHandlerClient;
  21 class Layer;
  22 class LayerTreeHost;
  23 }
  24
  25 namespace content {
  26 class GraphicsContext;
  27
  28 // -----------------------------------------------------------------------------
  29 // Browser-side compositor that manages a tree of content and UI layers.
  30 // -----------------------------------------------------------------------------
  31 class CONTENT_EXPORT CompositorImpl
  32     : public Compositor,
  33       public cc::LayerTreeHostClient,
  34       public WebGraphicsContext3DSwapBuffersClient {
  35  public:
  36   explicit CompositorImpl(Compositor::Client* client);
  37   virtual ~CompositorImpl();
  38
  39   static bool IsInitialized();
  40   static bool IsThreadingEnabled();
  41
  42   // Returns true if initialized with DIRECT_CONTEXT_ON_DRAW_THREAD.
  43   static bool UsesDirectGL();
  44
  45   // Returns the Java Surface object for a given view surface id.
  46   static jobject GetSurface(int surface_id);
  47
  48   // Compositor implementation.
  49   virtual void SetRootLayer(scoped_refptr<cc::Layer> root) OVERRIDE;
  50   virtual void SetWindowSurface(ANativeWindow* window) OVERRIDE;
  51   virtual void SetSurface(jobject surface) OVERRIDE;
  52   virtual void SetVisible(bool visible) OVERRIDE;
  53   virtual void setDeviceScaleFactor(float factor) OVERRIDE;
  54   virtual void SetWindowBounds(const gfx::Size& size) OVERRIDE;
  55   virtual void SetHasTransparentBackground(bool flag) OVERRIDE;
  56   virtual bool CompositeAndReadback(
  57       void *pixels, const gfx::Rect& rect) OVERRIDE;
  58   virtual void SetNeedsRedraw() OVERRIDE;
  59   virtual void Composite() OVERRIDE;
  60   virtual WebKit::WebGLId GenerateTexture(gfx::JavaBitmap& bitmap) OVERRIDE;
  61   virtual WebKit::WebGLId GenerateCompressedTexture(
  62       gfx::Size& size, int data_size, void* data) OVERRIDE;
  63   virtual void DeleteTexture(WebKit::WebGLId texture_id) OVERRIDE;
  64   virtual bool CopyTextureToBitmap(WebKit::WebGLId texture_id,
  65                                    gfx::JavaBitmap& bitmap) OVERRIDE;
  66   virtual bool CopyTextureToBitmap(WebKit::WebGLId texture_id,
  67                                    const gfx::Rect& sub_rect,
  68                                    gfx::JavaBitmap& bitmap) OVERRIDE;
  69
  70   // LayerTreeHostClient implementation.
  71   virtual void WillBeginFrame() OVERRIDE {}
  72   virtual void DidBeginFrame() OVERRIDE {}
  73   virtual void Animate(double frame_begin_time) OVERRIDE {}
  74   virtual void Layout() OVERRIDE {}
  75   virtual void ApplyScrollAndScale(gfx::Vector2d scroll_delta,
  76                                    float page_scale) OVERRIDE {}
  77   virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface() 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 void ScheduleComposite() OVERRIDE;
  84   virtual scoped_refptr<cc::ContextProvider>
  85       OffscreenContextProviderForMainThread() OVERRIDE;
  86   virtual scoped_refptr<cc::ContextProvider>
  87       OffscreenContextProviderForCompositorThread() OVERRIDE;
  88
  89   // WebGraphicsContext3DSwapBuffersClient implementation.
  90   virtual void OnViewContextSwapBuffersPosted() OVERRIDE;
  91   virtual void OnViewContextSwapBuffersComplete() OVERRIDE;
  92   virtual void OnViewContextSwapBuffersAborted() OVERRIDE;
  93
  94  private:
  95   WebKit::WebGLId BuildBasicTexture();
  96   WebKit::WGC3Denum GetGLFormatForBitmap(gfx::JavaBitmap& bitmap);
  97   WebKit::WGC3Denum GetGLTypeForBitmap(gfx::JavaBitmap& bitmap);
  98
  99   scoped_refptr<cc::Layer> root_layer_;
 100   scoped_ptr<cc::LayerTreeHost> host_;
 101
 102   gfx::Size size_;
 103   bool has_transparent_background_;
 104
 105   ANativeWindow* window_;
 106   int surface_id_;
 107
 108   Compositor::Client* client_;
 109   base::WeakPtrFactory<CompositorImpl> weak_factory_;
 110
 111   scoped_refptr<cc::ContextProvider> null_offscreen_context_provider_;
 112
 113   DISALLOW_COPY_AND_ASSIGN(CompositorImpl);
 114 };
 115
 116 } // namespace content
 117
 118 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_