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      1 // Copyright 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 MOJO_EXAMPLES_COMPOSITOR_APP_COMPOSITOR_HOST_H_
      6 #define MOJO_EXAMPLES_COMPOSITOR_APP_COMPOSITOR_HOST_H_
      7 
      8 #include "base/compiler_specific.h"
      9 #include "base/memory/scoped_ptr.h"
     10 #include "base/threading/thread.h"
     11 #include "cc/trees/layer_tree_host_client.h"
     12 #include "mojo/public/cpp/system/core.h"
     13 #include "ui/gfx/size.h"
     14 
     15 namespace cc {
     16 class Layer;
     17 class LayerTreeHost;
     18 }  // namespace cc
     19 
     20 namespace mojo {
     21 namespace examples {
     22 class GLES2ClientImpl;
     23 
     24 class CompositorHost : public cc::LayerTreeHostClient {
     25  public:
     26   explicit CompositorHost(ScopedMessagePipeHandle command_buffer_handle);
     27   virtual ~CompositorHost();
     28 
     29   void SetSize(const gfx::Size& viewport_size);
     30 
     31   // cc::LayerTreeHostClient implementation.
     32   virtual void WillBeginMainFrame(int frame_id) OVERRIDE;
     33   virtual void DidBeginMainFrame() OVERRIDE;
     34   virtual void Animate(base::TimeTicks frame_begin_time) OVERRIDE;
     35   virtual void Layout() OVERRIDE;
     36   virtual void ApplyScrollAndScale(const gfx::Vector2d& scroll_delta,
     37                                    float page_scale) OVERRIDE;
     38   virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface(bool fallback)
     39       OVERRIDE;
     40   virtual void DidInitializeOutputSurface() OVERRIDE;
     41   virtual void WillCommit() OVERRIDE;
     42   virtual void DidCommit() OVERRIDE;
     43   virtual void DidCommitAndDrawFrame() OVERRIDE;
     44   virtual void DidCompleteSwapBuffers() OVERRIDE;
     45 
     46  private:
     47   void SetupScene();
     48 
     49   ScopedMessagePipeHandle command_buffer_handle_;
     50   scoped_ptr<cc::LayerTreeHost> tree_;
     51   scoped_refptr<cc::Layer> child_layer_;
     52   base::Thread compositor_thread_;
     53 };
     54 
     55 }  // namespace examples
     56 }  // namespace mojo
     57 
     58 #endif  // MOJO_EXAMPLES_COMPOSITOR_APP_COMPOSITOR_HOST_H_
     59