cc: Implement tile iteration order based on pyramid sequence. [old]

cc/tiles/tiling_set_eviction_queue.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_TILES_TILING_SET_EVICTION_QUEUE_H_
 #define CC_TILES_TILING_SET_EVICTION_QUEUE_H_
 
 #include <stddef.h>
 
 #include <vector>
@@ skipping 79 matching lines @@
   void GenerateTilingOrder(PictureLayerTilingSet* tiling_set);
 
   // Helper base class for individual region iterators.
   class EvictionRectIterator {
    public:
     EvictionRectIterator();
     EvictionRectIterator(
         std::vector<PictureLayerTiling*>* tilings,
         WhichTree tree,
         PictureLayerTiling::PriorityRectType priority_rect_type);
+    EvictionRectIterator(const EvictionRectIterator& other) = default;
+    EvictionRectIterator(EvictionRectIterator&& other) = default;
+
+    EvictionRectIterator& operator=(const EvictionRectIterator& other) =
+        default;
+    EvictionRectIterator& operator=(EvictionRectIterator&& other) = default;
 
     bool done() const { return !prioritized_tile_.tile(); }
     const PrioritizedTile& operator*() const { return prioritized_tile_; }
 
    protected:
     ~EvictionRectIterator() = default;
 
     template <typename TilingIteratorType>
     bool AdvanceToNextTile(TilingIteratorType* iterator);
     template <typename TilingIteratorType>
     bool GetFirstTileAndCheckIfValid(TilingIteratorType* iterator);
 
     PrioritizedTile prioritized_tile_;
     std::vector<PictureLayerTiling*>* tilings_;
     WhichTree tree_;
     PictureLayerTiling::PriorityRectType priority_rect_type_;
     size_t tiling_index_;
   };
 
   class PendingVisibleTilingIterator : public EvictionRectIterator {
    public:
     PendingVisibleTilingIterator() = default;
     PendingVisibleTilingIterator(std::vector<PictureLayerTiling*>* tilings,
                                  WhichTree tree,
                                  bool return_required_for_activation_tiles);
+    PendingVisibleTilingIterator(const PendingVisibleTilingIterator& other) =
+        default;
+    PendingVisibleTilingIterator(PendingVisibleTilingIterator&& other) =
+        default;
+
+    PendingVisibleTilingIterator& operator=(
+        const PendingVisibleTilingIterator& other) = default;
+    PendingVisibleTilingIterator& operator=(
+        PendingVisibleTilingIterator&& other) = default;
 
     PendingVisibleTilingIterator& operator++();
 
    private:
     bool TileMatchesRequiredFlags(const PrioritizedTile& tile) const;
 
     TilingData::DifferenceIterator iterator_;
     bool return_required_for_activation_tiles_;
   };
 
   class VisibleTilingIterator : public EvictionRectIterator {
    public:
     VisibleTilingIterator() = default;
     VisibleTilingIterator(std::vector<PictureLayerTiling*>* tilings,
                           WhichTree tree,
                           bool return_occluded_tiles,
                           bool return_required_for_activation_tiles);
+    VisibleTilingIterator(const VisibleTilingIterator& other) = default;
+    VisibleTilingIterator(VisibleTilingIterator&& other) = default;
+
+    VisibleTilingIterator& operator=(const VisibleTilingIterator& other) =
+        default;
+    VisibleTilingIterator& operator=(VisibleTilingIterator&& other) = default;
 
     VisibleTilingIterator& operator++();
 
    private:
     bool TileMatchesRequiredFlags(const PrioritizedTile& tile) const;
 
     TilingData::Iterator iterator_;
     bool return_occluded_tiles_;
     bool return_required_for_activation_tiles_;
   };
 
   class SkewportTilingIterator : public EvictionRectIterator {
    public:
     SkewportTilingIterator() = default;
     SkewportTilingIterator(std::vector<PictureLayerTiling*>* tilings,
                            WhichTree tree);
+    SkewportTilingIterator(const SkewportTilingIterator& other) = default;
+    SkewportTilingIterator(SkewportTilingIterator&& other) = default;
+
+    SkewportTilingIterator& operator=(const SkewportTilingIterator& other) =
+        default;
+    SkewportTilingIterator& operator=(SkewportTilingIterator&& other) = default;
 
     SkewportTilingIterator& operator++();
 
    private:
     TilingData::ReverseSpiralDifferenceIterator iterator_;
   };
 
   class SoonBorderTilingIterator : public EvictionRectIterator {
    public:
     SoonBorderTilingIterator() = default;
     SoonBorderTilingIterator(std::vector<PictureLayerTiling*>* tilings,
                              WhichTree tree);
+    SoonBorderTilingIterator(const SoonBorderTilingIterator& other) = default;
+    SoonBorderTilingIterator(SoonBorderTilingIterator&& other) = default;
+
+    SoonBorderTilingIterator& operator=(const SoonBorderTilingIterator& other) =
+        default;
+    SoonBorderTilingIterator& operator=(SoonBorderTilingIterator&& other) =
+        default;
 
     SoonBorderTilingIterator& operator++();
 
    private:
     TilingData::ReverseSpiralDifferenceIterator iterator_;
   };
 
   class EventuallyTilingIterator : public EvictionRectIterator {
    public:
     EventuallyTilingIterator() = default;
     EventuallyTilingIterator(std::vector<PictureLayerTiling*>* tilings,
                              WhichTree tree);
+    EventuallyTilingIterator(const EventuallyTilingIterator& other) = default;
+    EventuallyTilingIterator(EventuallyTilingIterator&& other) = default;
+
+    EventuallyTilingIterator& operator=(const EventuallyTilingIterator& other) =
+        default;
+    EventuallyTilingIterator& operator=(EventuallyTilingIterator&& other) =
+        default;
 
     EventuallyTilingIterator& operator++();
 
    private:
     TilingData::ReverseSpiralDifferenceIterator iterator_;
   };
 
   void AdvancePhase();
 
   WhichTree tree_;
   Phase phase_;
   PrioritizedTile current_tile_;
   std::vector<PictureLayerTiling*> tilings_;
 
   EventuallyTilingIterator eventually_iterator_;
   SoonBorderTilingIterator soon_iterator_;
   SkewportTilingIterator skewport_iterator_;
   PendingVisibleTilingIterator pending_visible_iterator_;
   VisibleTilingIterator visible_iterator_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TILES_TILING_SET_EVICTION_QUEUE_H_