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 "base/containers/hash_tables.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "base/synchronization/lock.h"
  12 #include "cc/base/cc_export.h"
  13 #include "cc/layers/delegated_frame_provider.h"
  14 #include "cc/layers/layer.h"
  15 #include "cc/resources/returned_resource.h"
  16
  17 namespace cc {
  18 class BlockingTaskRunner;
  19
  20 class CC_EXPORT DelegatedRendererLayer : public Layer {
  21  public:
  22   static scoped_refptr<DelegatedRendererLayer> Create(
  23       const scoped_refptr<DelegatedFrameProvider>& frame_provider);
  24
  25   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
  26       OVERRIDE;
  27   virtual void SetLayerTreeHost(LayerTreeHost* host) OVERRIDE;
  28   virtual bool Update(ResourceUpdateQueue* queue,
  29                       const OcclusionTracker* occlusion) OVERRIDE;
  30   virtual void PushPropertiesTo(LayerImpl* impl) OVERRIDE;
  31
  32   // Set the size at which the frame should be displayed, with the origin at the
  33   // layer's origin. This must always contain at least the layer's bounds. A
  34   // value of (0, 0) implies that the frame should be displayed to fit exactly
  35   // in the layer's bounds.
  36   void SetDisplaySize(gfx::Size size);
  37
  38   // Called by the DelegatedFrameProvider when a new frame is available to be
  39   // picked up.
  40   void ProviderHasNewFrame();
  41
  42  protected:
  43   DelegatedRendererLayer(
  44       const scoped_refptr<DelegatedFrameProvider>& frame_provider);
  45   virtual ~DelegatedRendererLayer();
  46
  47  private:
  48   scoped_refptr<DelegatedFrameProvider> frame_provider_;
  49
  50   bool should_collect_new_frame_;
  51
  52   DelegatedFrameData* frame_data_;
  53   gfx::RectF frame_damage_;
  54
  55   gfx::Size display_size_;
  56
  57   scoped_refptr<BlockingTaskRunner> main_thread_runner_;
  58   base::WeakPtrFactory<DelegatedRendererLayer> weak_ptrs_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(DelegatedRendererLayer);
  61 };
  62
  63 }  // namespace cc
  64
  65 #endif  // CC_LAYERS_DELEGATED_RENDERER_LAYER_H_