cc/layers/delegated_renderer_layer.h

   1 // Copyright 2012 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_DELEGATED_RENDERER_LAYER_H_
   6 #define CC_LAYERS_DELEGATED_RENDERER_LAYER_H_
   7
   8 #include "cc/base/cc_export.h"
   9 #include "cc/layers/layer.h"
  10 #include "cc/resources/transferable_resource.h"
  11
  12 namespace cc {
  13
  14 class DelegatedFrameData;
  15 class DelegatedRendererLayerClient;
  16
  17 class CC_EXPORT DelegatedRendererLayer : public Layer {
  18  public:
  19   static scoped_refptr<DelegatedRendererLayer> Create(
  20       DelegatedRendererLayerClient* client);
  21
  22   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
  23       OVERRIDE;
  24   virtual void PushPropertiesTo(LayerImpl* impl) OVERRIDE;
  25   virtual bool DrawsContent() const OVERRIDE;
  26
  27   // Set the size at which the frame should be displayed, with the origin at the
  28   // layer's origin. This must always contain at least the layer's bounds. A
  29   // value of (0, 0) implies that the frame should be displayed to fit exactly
  30   // in the layer's bounds.
  31   void SetDisplaySize(gfx::Size size);
  32
  33   void SetFrameData(scoped_ptr<DelegatedFrameData> frame_data);
  34
  35   // Passes ownership of any unused resources that had been given by the child
  36   // compositor to the given array, so they can be given back to the child.
  37   void TakeUnusedResourcesForChildCompositor(TransferableResourceArray* array);
  38
  39   virtual bool BlocksPendingCommit() const OVERRIDE;
  40
  41  protected:
  42   explicit DelegatedRendererLayer(DelegatedRendererLayerClient* client);
  43   virtual ~DelegatedRendererLayer();
  44
  45  private:
  46   scoped_ptr<DelegatedFrameData> frame_data_;
  47   gfx::RectF damage_in_frame_;
  48   gfx::Size frame_size_;
  49   gfx::Size display_size_;
  50   TransferableResourceArray unused_resources_for_child_compositor_;
  51
  52   DelegatedRendererLayerClient* client_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(DelegatedRendererLayer);
  55 };
  56
  57 }  // namespace cc
  58 #endif  // CC_LAYERS_DELEGATED_RENDERER_LAYER_H_