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// Copyright 2013 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 CC_SCHEDULER_VIDEO_FRAME_CONTROLLER_H_
#define CC_SCHEDULER_VIDEO_FRAME_CONTROLLER_H_
#include "cc/base/cc_export.h"
#include "cc/output/begin_frame_args.h"
namespace cc {
class VideoFrameController;
class CC_EXPORT VideoFrameControllerClient {
public:
virtual void AddVideoFrameController(VideoFrameController* controller) = 0;
virtual void RemoveVideoFrameController(VideoFrameController* controller) = 0;
protected:
virtual ~VideoFrameControllerClient() {}
};
// TODO(sunnyps): Consider making this a BeginFrameObserver some day.
class CC_EXPORT VideoFrameController {
public:
virtual void OnBeginFrame(const BeginFrameArgs& args) = 0;
// Called upon completion of LayerTreeHostImpl::DidDrawAllLayers(), regardless
// of whether the controller issued a SetNeedsRedraw(). May be used to
// determine when SetNeedsRedraw() is called but the draw is aborted.
virtual void DidDrawFrame() = 0;
protected:
virtual ~VideoFrameController() {}
};
} // namespace cc
#endif // CC_SCHEDULER_VIDEO_FRAME_CONTROLLER_H_
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