cc/layers/ui_resource_layer_impl.h

   1 // Copyright 2013 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_LAYERS_UI_RESOURCE_LAYER_IMPL_H_
   6 #define CC_LAYERS_UI_RESOURCE_LAYER_IMPL_H_
   7
   8 #include <string>
   9
  10 #include "cc/base/cc_export.h"
  11 #include "cc/layers/layer_impl.h"
  12 #include "cc/resources/resource_provider.h"
  13 #include "cc/resources/ui_resource_client.h"
  14 #include "ui/gfx/geometry/rect.h"
  15 #include "ui/gfx/geometry/size.h"
  16
  17 namespace base {
  18 class DictionaryValue;
  19 }
  20
  21 namespace cc {
  22
  23 class CC_EXPORT UIResourceLayerImpl : public LayerImpl {
  24  public:
  25   static scoped_ptr<UIResourceLayerImpl> Create(LayerTreeImpl* tree_impl,
  26                                                int id) {
  27     return make_scoped_ptr(new UIResourceLayerImpl(tree_impl, id));
  28   }
  29   ~UIResourceLayerImpl() override;
  30
  31   void SetUIResourceId(UIResourceId uid);
  32
  33   void SetImageBounds(const gfx::Size& image_bounds);
  34
  35   // Sets a UV transform to be used at draw time. Defaults to (0, 0) and (1, 1).
  36   void SetUV(const gfx::PointF& top_left, const gfx::PointF& bottom_right);
  37
  38   // Sets an opacity value per vertex. It will be multiplied by the layer
  39   // opacity value.
  40   void SetVertexOpacity(const float vertex_opacity[4]);
  41
  42   scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
  43   void PushPropertiesTo(LayerImpl* layer) override;
  44
  45   bool WillDraw(DrawMode draw_mode,
  46                 ResourceProvider* resource_provider) override;
  47   void AppendQuads(RenderPass* render_pass,
  48                    const Occlusion& occlusion_in_content_space,
  49                    AppendQuadsData* append_quads_data) override;
  50
  51   base::DictionaryValue* LayerTreeAsJson() const override;
  52
  53  protected:
  54   UIResourceLayerImpl(LayerTreeImpl* tree_impl, int id);
  55
  56   // The size of the resource bitmap in pixels.
  57   gfx::Size image_bounds_;
  58
  59   UIResourceId ui_resource_id_;
  60
  61   gfx::PointF uv_top_left_;
  62   gfx::PointF uv_bottom_right_;
  63   float vertex_opacity_[4];
  64
  65  private:
  66   const char* LayerTypeAsString() const override;
  67
  68   DISALLOW_COPY_AND_ASSIGN(UIResourceLayerImpl);
  69 };
  70
  71 }  // namespace cc
  72
  73 #endif  // CC_LAYERS_UI_RESOURCE_LAYER_IMPL_H_