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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_EXTERNAL_BEGIN_FRAME_SOURCE_H_
#define CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_EXTERNAL_BEGIN_FRAME_SOURCE_H_
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/threading/thread_checker.h"
#include "cc/scheduler/begin_frame_source.h"
namespace content {
class SynchronousCompositorRegistry;
class SynchronousCompositorExternalBeginFrameSourceClient {
public:
virtual void OnNeedsBeginFramesChange(bool needs_begin_frames) = 0;
protected:
virtual ~SynchronousCompositorExternalBeginFrameSourceClient() {}
};
// Make sure that this is initialized and set to client before output
// surface is bound to compositor.
class SynchronousCompositorExternalBeginFrameSource
: public cc::BeginFrameSourceBase {
public:
SynchronousCompositorExternalBeginFrameSource(
int routing_id,
SynchronousCompositorRegistry* registry);
~SynchronousCompositorExternalBeginFrameSource() override;
void BeginFrame(const cc::BeginFrameArgs& args);
void SetClient(SynchronousCompositorExternalBeginFrameSourceClient* client);
using cc::BeginFrameSourceBase::SetBeginFrameSourcePaused;
// cc::BeginFrameSourceBase implementation.
void OnNeedsBeginFramesChange(bool needs_begin_frames) override;
void SetClientReady() override;
private:
bool CalledOnValidThread() const;
const int routing_id_;
SynchronousCompositorRegistry* const registry_;
bool registered_;
// Not owned.
SynchronousCompositorExternalBeginFrameSourceClient* client_;
base::ThreadChecker thread_checker_;
DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorExternalBeginFrameSource);
};
} // namespace content
#endif // CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_EXTERNAL_BEGIN_FRAME_SOURCE_H_
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