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