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

cc/tiles/tiling_set_raster_queue_all.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_RASTER_QUEUE_ALL_H_
 #define CC_TILES_TILING_SET_RASTER_QUEUE_ALL_H_
 
 #include <stddef.h>
 
 #include "base/containers/stack_container.h"
@@ skipping 20 matching lines @@
 
  private:
   // Helper base class for individual region iterators.
   class OnePriorityRectIterator {
    public:
     OnePriorityRectIterator();
     OnePriorityRectIterator(
         PictureLayerTiling* tiling,
         TilingData* tiling_data,
         PictureLayerTiling::PriorityRectType priority_rect_type);
+    OnePriorityRectIterator(const OnePriorityRectIterator& other) = default;
+    OnePriorityRectIterator(OnePriorityRectIterator&& other) = default;
+
+    OnePriorityRectIterator& operator=(const OnePriorityRectIterator& other) =
+        default;
+    OnePriorityRectIterator& operator=(OnePriorityRectIterator&& other) =
+        default;
 
     bool done() const { return !current_tile_.tile(); }
     const PrioritizedTile& operator*() const { return current_tile_; }
 
    protected:
     ~OnePriorityRectIterator() = default;
     bool TileNeedsRaster(const Tile* tile) const {
       return tile->draw_info().NeedsRaster() && !tiling_->IsTileOccluded(tile);
     }
 
     template <typename TilingIteratorType>
     void AdvanceToNextTile(TilingIteratorType* iterator);
     template <typename TilingIteratorType>
     bool GetFirstTileAndCheckIfValid(TilingIteratorType* iterator);
     bool IsTileValid(const Tile* tile) const;
 
     PrioritizedTile current_tile_;
     PictureLayerTiling* tiling_;
     TilingData* tiling_data_;
     PictureLayerTiling::PriorityRectType priority_rect_type_;
     gfx::Rect pending_visible_rect_;
   };
 
   // Iterates over visible rect only, left to right top to bottom order.
   class VisibleTilingIterator : public OnePriorityRectIterator {
    public:
     VisibleTilingIterator() = default;
     VisibleTilingIterator(PictureLayerTiling* tiling, TilingData* tiling_data);
+    VisibleTilingIterator(const VisibleTilingIterator& other) = default;
+    VisibleTilingIterator(VisibleTilingIterator&& other) = default;
+
+    VisibleTilingIterator& operator=(const VisibleTilingIterator& other) =
+        default;
+    VisibleTilingIterator& operator=(VisibleTilingIterator&& other) = default;
 
     VisibleTilingIterator& operator++();
 
    private:
     TilingData::Iterator iterator_;
   };
 
   class PendingVisibleTilingIterator : public OnePriorityRectIterator {
    public:
     PendingVisibleTilingIterator() = default;
     PendingVisibleTilingIterator(PictureLayerTiling* tiling,
                                  TilingData* tiling_data);
+    PendingVisibleTilingIterator(const PendingVisibleTilingIterator& other) =
+        default;
+    PendingVisibleTilingIterator(PendingVisibleTilingIterator&& other) =
+        default;
+
+    PendingVisibleTilingIterator& operator=(
+        const PendingVisibleTilingIterator& other) = default;
+    PendingVisibleTilingIterator& operator=(
+        PendingVisibleTilingIterator&& other) = default;
 
     PendingVisibleTilingIterator& operator++();
 
    private:
     TilingData::DifferenceIterator iterator_;
   };
 
   // Iterates over skewport only, spiral around the visible rect.
   class SkewportTilingIterator : public OnePriorityRectIterator {
    public:
     SkewportTilingIterator() = default;
     SkewportTilingIterator(PictureLayerTiling* tiling, TilingData* tiling_data);
+    SkewportTilingIterator(const SkewportTilingIterator& other) = default;
+    SkewportTilingIterator(SkewportTilingIterator&& other) = default;
+
+    SkewportTilingIterator& operator=(const SkewportTilingIterator& other) =
+        default;
+    SkewportTilingIterator& operator=(SkewportTilingIterator&& other) = default;
 
     SkewportTilingIterator& operator++();
 
    private:
     TilingData::SpiralDifferenceIterator iterator_;
   };
 
   // Iterates over soon border only, spiral around the visible rect.
   class SoonBorderTilingIterator : public OnePriorityRectIterator {
    public:
     SoonBorderTilingIterator() = default;
     SoonBorderTilingIterator(PictureLayerTiling* tiling,
                              TilingData* tiling_data);
+    SoonBorderTilingIterator(const SoonBorderTilingIterator& other) = default;
+    SoonBorderTilingIterator(SoonBorderTilingIterator&& other) = default;
+
+    SoonBorderTilingIterator& operator=(const SoonBorderTilingIterator& other) =
+        default;
+    SoonBorderTilingIterator& operator=(SoonBorderTilingIterator&& other) =
+        default;
 
     SoonBorderTilingIterator& operator++();
 
    private:
     TilingData::SpiralDifferenceIterator iterator_;
   };
 
   // Iterates over eventually rect only, spiral around the soon rect.
   class EventuallyTilingIterator : public OnePriorityRectIterator {
    public:
     EventuallyTilingIterator() = default;
     EventuallyTilingIterator(PictureLayerTiling* tiling,
                              TilingData* tiling_data);
+    EventuallyTilingIterator(const EventuallyTilingIterator& other) = default;
+    EventuallyTilingIterator(EventuallyTilingIterator&& other) = default;
+
+    EventuallyTilingIterator& operator=(const EventuallyTilingIterator& other) =
+        default;
+    EventuallyTilingIterator& operator=(EventuallyTilingIterator&& other) =
+        default;
 
     EventuallyTilingIterator& operator++();
 
    private:
     TilingData::SpiralDifferenceIterator iterator_;
   };
 
   // Iterates over all of the above phases in the following order: visible,
   // skewport, soon border, eventually.
   class TilingIterator {
    public:
     TilingIterator();
     explicit TilingIterator(PictureLayerTiling* tiling,
                             TilingData* tiling_data);
+    TilingIterator(const TilingIterator& other);
+    TilingIterator(TilingIterator&& other);
     ~TilingIterator();
 
+    TilingIterator& operator=(const TilingIterator& other);
+    TilingIterator& operator=(TilingIterator&& other);
+
     bool done() const { return !current_tile_.tile(); }
     const PrioritizedTile& operator*() const { return current_tile_; }
     TilePriority::PriorityBin type() const {
       switch (phase_) {
         case Phase::VISIBLE_RECT:
           return TilePriority::NOW;
         case Phase::PENDING_VISIBLE_RECT:
         case Phase::SKEWPORT_RECT:
         case Phase::SOON_BORDER_RECT:
           return TilePriority::SOON;
@@ skipping 48 matching lines @@
   // ideal pending high res.
   base::StackVector<IterationStage, 6> stages_;
   TilingIterator iterators_[NUM_ITERATORS];
 
   DISALLOW_COPY_AND_ASSIGN(TilingSetRasterQueueAll);
 };
 
 }  // namespace cc
 
 #endif  // CC_TILES_TILING_SET_RASTER_QUEUE_ALL_H_