content/browser/android/in_process/synchronous_compositor_external_begin_frame_source.h

   1 // Copyright 2014 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_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_EXTERNAL_BEGIN_FRAME_SOURCE_H_
   6 #define CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_EXTERNAL_BEGIN_FRAME_SOURCE_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "cc/scheduler/begin_frame_source.h"
  11
  12 namespace content {
  13 class SynchronousCompositorImpl;
  14
  15 // Make sure that this is initialized and set to compositor before output
  16 // surface is bound to compositor.
  17 class SynchronousCompositorExternalBeginFrameSource
  18     : public cc::BeginFrameSourceBase {
  19  public:
  20   explicit SynchronousCompositorExternalBeginFrameSource(int routing_id);
  21   ~SynchronousCompositorExternalBeginFrameSource() override;
  22
  23   void BeginFrame(const cc::BeginFrameArgs& args);
  24   void SetCompositor(SynchronousCompositorImpl* compositor);
  25
  26   // cc::BeginFrameSourceBase implementation.
  27   void OnNeedsBeginFramesChange(bool needs_begin_frames) override;
  28   void SetClientReady() override;
  29
  30  private:
  31   bool CalledOnValidThread() const;
  32
  33   const int routing_id_;
  34   bool registered_;
  35
  36   // Not owned. This can be null when compositor is gone first than BFS.
  37   SynchronousCompositorImpl* compositor_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorExternalBeginFrameSource);
  40 };
  41
  42 }  // namespace content
  43
  44 #endif  // CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_EXTERNAL_BEGIN_FRAME_SOURCE_H_