cc/resources/filter_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_FILTER_DISPLAY_ITEM_H_
   6 #define CC_RESOURCES_FILTER_DISPLAY_ITEM_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "cc/base/cc_export.h"
  10 #include "cc/output/filter_operations.h"
  11 #include "cc/resources/display_item.h"
  12 #include "ui/gfx/geometry/rect_f.h"
  13
  14 class SkCanvas;
  15 class SkDrawPictureCallback;
  16
  17 namespace cc {
  18
  19 class CC_EXPORT FilterDisplayItem : public DisplayItem {
  20  public:
  21   ~FilterDisplayItem() override;
  22
  23   static scoped_ptr<FilterDisplayItem> Create(const FilterOperations& filters,
  24                                               gfx::RectF bounds) {
  25     return make_scoped_ptr(new FilterDisplayItem(filters, bounds));
  26   }
  27
  28   void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
  29
  30   bool IsSuitableForGpuRasterization() const override;
  31   int ApproximateOpCount() const override;
  32   size_t PictureMemoryUsage() const override;
  33   void AsValueInto(base::trace_event::TracedValue* array) const override;
  34
  35  protected:
  36   FilterDisplayItem(const FilterOperations& filters, gfx::RectF bounds);
  37
  38  private:
  39   FilterOperations filters_;
  40   gfx::RectF bounds_;
  41 };
  42
  43 class CC_EXPORT EndFilterDisplayItem : public DisplayItem {
  44  public:
  45   ~EndFilterDisplayItem() override;
  46
  47   static scoped_ptr<EndFilterDisplayItem> Create() {
  48     return make_scoped_ptr(new EndFilterDisplayItem());
  49   }
  50
  51   void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
  52
  53   bool IsSuitableForGpuRasterization() const override;
  54   int ApproximateOpCount() const override;
  55   size_t PictureMemoryUsage() const override;
  56   void AsValueInto(base::trace_event::TracedValue* array) const override;
  57
  58  protected:
  59   EndFilterDisplayItem();
  60 };
  61
  62 }  // namespace cc
  63
  64 #endif  // CC_RESOURCES_FILTER_DISPLAY_ITEM_H_