cc/resources/clip_display_item.h

   1 // Copyright 2014 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_DISPLAY_ITEM_H_
   6 #define CC_RESOURCES_CLIP_DISPLAY_ITEM_H_
   7
   8 #include <vector>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "cc/base/cc_export.h"
  12 #include "cc/resources/display_item.h"
  13 #include "third_party/skia/include/core/SkRRect.h"
  14 #include "ui/gfx/geometry/rect.h"
  15
  16 class SkCanvas;
  17 class SkDrawPictureCallback;
  18
  19 namespace cc {
  20
  21 class CC_EXPORT ClipDisplayItem : public DisplayItem {
  22  public:
  23   ~ClipDisplayItem() override;
  24
  25   static scoped_ptr<ClipDisplayItem> Create(
  26       gfx::Rect clip_rect,
  27       const std::vector<SkRRect>& rounded_clip_rects) {
  28     return make_scoped_ptr(new ClipDisplayItem(clip_rect, rounded_clip_rects));
  29   }
  30
  31   void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
  32
  33   bool IsSuitableForGpuRasterization() const override;
  34   int ApproximateOpCount() const override;
  35   size_t PictureMemoryUsage() const override;
  36   void AsValueInto(base::trace_event::TracedValue* array) const override;
  37
  38  protected:
  39   ClipDisplayItem(gfx::Rect clip_rect,
  40                   const std::vector<SkRRect>& rounded_clip_rects);
  41
  42  private:
  43   gfx::Rect clip_rect_;
  44   std::vector<SkRRect> rounded_clip_rects_;
  45 };
  46
  47 class CC_EXPORT EndClipDisplayItem : public DisplayItem {
  48  public:
  49   ~EndClipDisplayItem() override;
  50
  51   static scoped_ptr<EndClipDisplayItem> Create() {
  52     return make_scoped_ptr(new EndClipDisplayItem());
  53   }
  54
  55   void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
  56
  57   bool IsSuitableForGpuRasterization() const override;
  58   int ApproximateOpCount() const override;
  59   size_t PictureMemoryUsage() const override;
  60   void AsValueInto(base::trace_event::TracedValue* array) const override;
  61
  62  protected:
  63   EndClipDisplayItem();
  64 };
  65
  66 }  // namespace cc
  67
  68 #endif  // CC_RESOURCES_CLIP_DISPLAY_ITEM_H_