content/common/gpu/ca_layer_partial_damage_tree_mac.h

// Copyright 2016 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_COMMON_GPU_CA_LAYER_PARTIAL_DAMAGE_TREE_MAC_H_
#define CONTENT_COMMON_GPU_CA_LAYER_PARTIAL_DAMAGE_TREE_MAC_H_

#include <IOSurface/IOSurface.h>
#include <QuartzCore/QuartzCore.h>
#include <deque>

#include "base/mac/scoped_cftyperef.h"
#include "base/memory/linked_ptr.h"
#include "base/memory/scoped_ptr.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_f.h"

namespace content {

class CALayerPartialDamageTree {
 public:
  CALayerPartialDamageTree(bool allow_partial_swap,
                           base::ScopedCFTypeRef<IOSurfaceRef> io_surface,
                           const gfx::Rect& pixel_frame_rect);
  ~CALayerPartialDamageTree();

  base::ScopedCFTypeRef<IOSurfaceRef> RootLayerIOSurface();
  void CommitCALayers(CALayer* superlayer,
                      scoped_ptr<CALayerPartialDamageTree> old_tree,
                      float scale_factor,
                      const gfx::Rect& pixel_damage_rect);

 private:
  class OverlayPlane;

  void UpdateRootAndPartialDamagePlanes(CALayerPartialDamageTree* old_tree,
                                        const gfx::RectF& pixel_damage_rect);
  void UpdateRootAndPartialDamageCALayers(CALayer* superlayer,
                                          float scale_factor);

  const bool allow_partial_swap_;
  linked_ptr<OverlayPlane> root_plane_;
  std::deque<linked_ptr<OverlayPlane>> partial_damage_planes_;
};

}  // content

#endif  // CONTENT_COMMON_GPU_CA_LAYER_PARTIAL_DAMAGE_TREE_MAC_H_