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();
  24   ~ClipDisplayItem() override;
  25
  26   void SetNew(gfx::Rect clip_rect,
  27               const std::vector<SkRRect>& rounded_clip_rects);
  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   ClipDisplayItem(gfx::Rect clip_rect,
  38                   const std::vector<SkRRect>& rounded_clip_rects);
  39
  40  private:
  41   gfx::Rect clip_rect_;
  42   std::vector<SkRRect> rounded_clip_rects_;
  43 };
  44
  45 class CC_EXPORT EndClipDisplayItem : public DisplayItem {
  46  public:
  47   EndClipDisplayItem();
  48   ~EndClipDisplayItem() override;
  49
  50   void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
  51
  52   bool IsSuitableForGpuRasterization() const override;
  53   int ApproximateOpCount() const override;
  54   size_t PictureMemoryUsage() const override;
  55   void AsValueInto(base::trace_event::TracedValue* array) const override;
  56 };
  57
  58 }  // namespace cc
  59
  60 #endif  // CC_RESOURCES_CLIP_DISPLAY_ITEM_H_