cc/resources/transform_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_TRANSFORM_DISPLAY_ITEM_H_
   6 #define CC_RESOURCES_TRANSFORM_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 "ui/gfx/transform.h"
  12
  13 class SkCanvas;
  14 class SkDrawPictureCallback;
  15
  16 namespace cc {
  17
  18 class CC_EXPORT TransformDisplayItem : public DisplayItem {
  19  public:
  20   ~TransformDisplayItem() override;
  21
  22   static scoped_ptr<TransformDisplayItem> Create(
  23       const gfx::Transform& transform) {
  24     return make_scoped_ptr(new TransformDisplayItem(transform));
  25   }
  26
  27   void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
  28
  29   bool IsSuitableForGpuRasterization() const override;
  30   int ApproximateOpCount() const override;
  31   size_t PictureMemoryUsage() const override;
  32   void AsValueInto(base::trace_event::TracedValue* array) const override;
  33
  34  protected:
  35   explicit TransformDisplayItem(const gfx::Transform& transform);
  36
  37  private:
  38   gfx::Transform transform_;
  39 };
  40
  41 class CC_EXPORT EndTransformDisplayItem : public DisplayItem {
  42  public:
  43   ~EndTransformDisplayItem() override;
  44
  45   static scoped_ptr<EndTransformDisplayItem> Create() {
  46     return make_scoped_ptr(new EndTransformDisplayItem());
  47   }
  48
  49   void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
  50
  51   bool IsSuitableForGpuRasterization() const override;
  52   int ApproximateOpCount() const override;
  53   size_t PictureMemoryUsage() const override;
  54   void AsValueInto(base::trace_event::TracedValue* array) const override;
  55
  56  protected:
  57   EndTransformDisplayItem();
  58 };
  59
  60 }  // namespace cc
  61
  62 #endif  // CC_RESOURCES_TRANSFORM_DISPLAY_ITEM_H_