cc/resources/clip_path_display_item.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_RESOURCES_CLIP_PATH_DISPLAY_ITEM_H_
   6 #define CC_RESOURCES_CLIP_PATH_DISPLAY_ITEM_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "cc/base/cc_export.h"
  10 #include "cc/resources/display_item.h"
  11 #include "third_party/skia/include/core/SkPath.h"
  12 #include "third_party/skia/include/core/SkRegion.h"
  13
  14 class SkCanvas;
  15 class SkDrawPictureCallback;
  16
  17 namespace cc {
  18
  19 class CC_EXPORT ClipPathDisplayItem : public DisplayItem {
  20  public:
  21   ~ClipPathDisplayItem() override;
  22
  23   static scoped_ptr<ClipPathDisplayItem> Create(const SkPath& path,
  24                                                 SkRegion::Op clip_op,
  25                                                 bool antialias) {
  26     return make_scoped_ptr(new ClipPathDisplayItem(path, clip_op, antialias));
  27   }
  28
  29   void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
  30
  31   bool IsSuitableForGpuRasterization() const override;
  32   int ApproximateOpCount() const override;
  33   size_t PictureMemoryUsage() const override;
  34   void AsValueInto(base::trace_event::TracedValue* array) const override;
  35
  36  protected:
  37   ClipPathDisplayItem(const SkPath& path, SkRegion::Op clip_op, bool antialias);
  38
  39  private:
  40   SkPath clip_path_;
  41   SkRegion::Op clip_op_;
  42   bool antialias_;
  43 };
  44
  45 class CC_EXPORT EndClipPathDisplayItem : public DisplayItem {
  46  public:
  47   ~EndClipPathDisplayItem() override;
  48
  49   static scoped_ptr<EndClipPathDisplayItem> Create() {
  50     return make_scoped_ptr(new EndClipPathDisplayItem());
  51   }
  52
  53   void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
  54
  55   bool IsSuitableForGpuRasterization() const override;
  56   int ApproximateOpCount() const override;
  57   size_t PictureMemoryUsage() const override;
  58   void AsValueInto(base::trace_event::TracedValue* array) const override;
  59
  60  protected:
  61   EndClipPathDisplayItem();
  62 };
  63
  64 }  // namespace cc
  65
  66 #endif  // CC_RESOURCES_CLIP_PATH_DISPLAY_ITEM_H_