cc/layers/video_layer.h

   1 // Copyright 2010 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_VIDEO_LAYER_H_
   6 #define CC_LAYERS_VIDEO_LAYER_H_
   7
   8 #include "base/callback.h"
   9 #include "cc/base/cc_export.h"
  10 #include "cc/layers/layer.h"
  11
  12 namespace media { class VideoFrame; }
  13
  14 namespace cc {
  15
  16 class VideoFrameProvider;
  17 class VideoLayerImpl;
  18
  19 // A Layer that contains a Video element.
  20 class CC_EXPORT VideoLayer : public Layer {
  21  public:
  22   static scoped_refptr<VideoLayer> Create(VideoFrameProvider* provider);
  23
  24   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
  25       OVERRIDE;
  26
  27   virtual bool Update(ResourceUpdateQueue* queue,
  28                       const OcclusionTracker* occlusion) OVERRIDE;
  29  private:
  30   explicit VideoLayer(VideoFrameProvider* provider);
  31   virtual ~VideoLayer();
  32
  33   // This pointer is only for passing to VideoLayerImpl's constructor. It should
  34   // never be dereferenced by this class.
  35   VideoFrameProvider* provider_;
  36
  37   DISALLOW_COPY_AND_ASSIGN(VideoLayer);
  38 };
  39
  40 }  // namespace cc
  41
  42 #endif  // CC_LAYERS_VIDEO_LAYER_H_