Upstream version 7.36.149.0

[platform/framework/web/crosswalk.git] / src / cc / resources / picture_pile_base.h

diff --git a/src/cc/resources/picture_pile_base.h b/src/cc/resources/picture_pile_base.h
index 325feff..dd5f883 100644 (file)
--- a/src/cc/resources/picture_pile_base.h
+++ b/src/cc/resources/picture_pile_base.h
@@ -5,6 +5,7 @@
 #ifndef CC_RESOURCES_PICTURE_PILE_BASE_H_
 #define CC_RESOURCES_PICTURE_PILE_BASE_H_
 
+#include <bitset>
 #include <list>
 #include <utility>
 
@@ -28,33 +29,54 @@ class CC_EXPORT PicturePileBase : public base::RefCounted<PicturePileBase> {
   explicit PicturePileBase(const PicturePileBase* other);
   PicturePileBase(const PicturePileBase* other, unsigned thread_index);
 
-  void Resize(gfx::Size size);
-  gfx::Size size() const { return tiling_.total_size(); }
+  void SetTilingRect(const gfx::Rect& tiling_rect);
+  gfx::Rect tiling_rect() const { return tiling_.tiling_rect(); }
   void SetMinContentsScale(float min_contents_scale);
 
-  void UpdateRecordedRegion();
-  const Region& recorded_region() const { return recorded_region_; }
-
   int num_tiles_x() const { return tiling_.num_tiles_x(); }
   int num_tiles_y() const { return tiling_.num_tiles_y(); }
   gfx::Rect tile_bounds(int x, int y) const { return tiling_.TileBounds(x, y); }
   bool HasRecordingAt(int x, int y);
-  bool CanRaster(float contents_scale, gfx::Rect content_rect);
+  bool CanRaster(float contents_scale, const gfx::Rect& content_rect);
+
+  // If this pile contains any valid recordings. May have false positives.
+  bool HasRecordings() const { return has_any_recordings_; }
 
-  void SetTileGridSize(gfx::Size tile_grid_size);
+  static void ComputeTileGridInfo(const gfx::Size& tile_grid_size,
+                                  SkTileGridFactory::TileGridInfo* info);
+
+  void SetTileGridSize(const gfx::Size& tile_grid_size);
   TilingData& tiling() { return tiling_; }
 
   scoped_ptr<base::Value> AsValue() const;
 
  protected:
-  struct CC_EXPORT PictureInfo {
+  class CC_EXPORT PictureInfo {
+   public:
+    enum {
+      INVALIDATION_FRAMES_TRACKED = 32
+    };
+
     PictureInfo();
     ~PictureInfo();
 
-    bool Invalidate();
+    bool Invalidate(int frame_number);
+    bool NeedsRecording(int frame_number, int distance_to_visible);
     PictureInfo CloneForThread(int thread_index) const;
+    void SetPicture(scoped_refptr<Picture> picture);
+    Picture* GetPicture() const;
 
-    scoped_refptr<Picture> picture;
+    float GetInvalidationFrequencyForTesting() const {
+      return GetInvalidationFrequency();
+    }
+
+   private:
+    void AdvanceInvalidationHistory(int frame_number);
+    float GetInvalidationFrequency() const;
+
+    int last_frame_number_;
+    scoped_refptr<Picture> picture_;
+    std::bitset<INVALIDATION_FRAMES_TRACKED> invalidation_history_;
   };
 
   typedef std::pair<int, int> PictureMapKey;
@@ -62,25 +84,33 @@ class CC_EXPORT PicturePileBase : public base::RefCounted<PicturePileBase> {
 
   virtual ~PicturePileBase();
 
-  int num_raster_threads() { return num_raster_threads_; }
   int buffer_pixels() const { return tiling_.border_texels(); }
   void Clear();
 
   gfx::Rect PaddedRect(const PictureMapKey& key);
+  gfx::Rect PadRect(const gfx::Rect& rect);
+
+  // An internal CanRaster check that goes to the picture_map rather than
+  // using the recorded_viewport hint.
+  bool CanRasterSlowTileCheck(const gfx::Rect& layer_rect) const;
 
   // A picture pile is a tiled set of pictures. The picture map is a map of tile
   // indices to picture infos.
   PictureMap picture_map_;
   TilingData tiling_;
-  Region recorded_region_;
+  // If non-empty, all pictures tiles inside this rect are recorded.
+  gfx::Rect recorded_viewport_;
   float min_contents_scale_;
-  SkTileGridPicture::TileGridInfo tile_grid_info_;
+  SkTileGridFactory::TileGridInfo tile_grid_info_;
   SkColor background_color_;
   int slow_down_raster_scale_factor_for_debug_;
   bool contents_opaque_;
+  bool contents_fill_bounds_completely_;
   bool show_debug_picture_borders_;
   bool clear_canvas_with_debug_color_;
-  int num_raster_threads_;
+  // A hint about whether there are any recordings. This may be a false
+  // positive.
+  bool has_any_recordings_;
 
  private:
   void SetBufferPixels(int buffer_pixels);