Part 8 of cc/ directory shuffles: resources

cc/picture_pile_impl.h

-// Copyright 2012 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_PICTURE_PILE_IMPL_H_
-#define CC_PICTURE_PILE_IMPL_H_
-
-#include <list>
-#include <map>
-
-#include "cc/base/cc_export.h"
-#include "cc/picture_pile_base.h"
-#include "skia/ext/refptr.h"
-#include "third_party/skia/include/core/SkPicture.h"
-
-namespace cc {
-struct RenderingStats;
-
-class CC_EXPORT PicturePileImpl : public PicturePileBase {
- public:
-  static scoped_refptr<PicturePileImpl> Create();
-  static scoped_refptr<PicturePileImpl> CreateFromOther(
-      const PicturePileBase* other);
-
-  // Get paint-safe version of this picture for a specific thread.
-  PicturePileImpl* GetCloneForDrawingOnThread(unsigned thread_index) const;
-
-  // Raster a subrect of this PicturePileImpl into the given canvas.
-  // It's only safe to call paint on a cloned version.
-  // It is assumed that contentsScale has already been applied to this canvas.
-  void Raster(
-      SkCanvas* canvas,
-      gfx::Rect canvas_rect,
-      float contents_scale,
-      int64* total_pixels_rasterized);
-
-  void GatherPixelRefs(
-      gfx::Rect content_rect,
-      float contents_scale,
-      std::list<skia::LazyPixelRef*>& pixel_refs);
-
-  skia::RefPtr<SkPicture> GetFlattenedPicture();
-
-  struct Analysis {
-    Analysis();
-
-    bool is_solid_color;
-    bool is_transparent;
-    bool is_cheap_to_raster;
-    SkColor solid_color;
-  };
-
-  void AnalyzeInRect(const gfx::Rect& content_rect,
-                     float contents_scale,
-                     Analysis* analysis);
-
- protected:
-  friend class PicturePile;
-
-  PicturePileImpl();
-  PicturePileImpl(const PicturePileBase* other);
-  virtual ~PicturePileImpl();
-
- private:
-  class ClonesForDrawing {
-   public:
-    ClonesForDrawing(const PicturePileImpl* pile, int num_threads);
-    ~ClonesForDrawing();
-
-    typedef std::vector<scoped_refptr<PicturePileImpl> > PicturePileVector;
-    PicturePileVector clones_;
-  };
-
-  static scoped_refptr<PicturePileImpl> CreateCloneForDrawing(
-      const PicturePileImpl* other, unsigned thread_index);
-
-  PicturePileImpl(const PicturePileImpl* other, unsigned thread_index);
-
-  // Once instantiated, |clones_for_drawing_| can't be modified.
-  // This guarantees thread-safe access during the life
-  // time of a PicturePileImpl instance.
-  const ClonesForDrawing clones_for_drawing_;
-
-  DISALLOW_COPY_AND_ASSIGN(PicturePileImpl);
-};
-
-}  // namespace cc
-
-#endif  // CC_PICTURE_PILE_IMPL_H_