cc/output/overlay_strategy_single_on_top.h

// 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 CC_OUTPUT_OVERLAY_STRATEGY_SINGLE_ON_TOP_H_
#define CC_OUTPUT_OVERLAY_STRATEGY_SINGLE_ON_TOP_H_

#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "cc/base/cc_export.h"
#include "cc/output/overlay_candidate.h"
#include "cc/output/overlay_processor.h"
#include "cc/output/overlay_strategy_common.h"
#include "cc/quads/render_pass.h"

namespace cc {
class StreamVideoDrawQuad;
class TextureDrawQuad;

class CC_EXPORT OverlayStrategySingleOnTop
    : public OverlayStrategyCommonDelegate {
 public:
  OverlayStrategySingleOnTop() {}
  ~OverlayStrategySingleOnTop() override;

  OverlayResult TryOverlay(OverlayCandidateValidator* capability_checker,
                           RenderPassList* render_passes_in_draw_order,
                           OverlayCandidateList* candidate_list,
                           const OverlayCandidate& candidate,
                           QuadList::Iterator* candidate_iterator,
                           float device_scale_factor) override;

 private:
  DISALLOW_COPY_AND_ASSIGN(OverlayStrategySingleOnTop);
};

}  // namespace cc

#endif  // CC_OUTPUT_OVERLAY_STRATEGY_SINGLE_ON_TOP_H_