cc/layers/video_layer.cc

   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 #include "cc/layers/video_layer.h"
   6
   7 #include "cc/layers/video_layer_impl.h"
   8
   9 namespace cc {
  10
  11 scoped_refptr<VideoLayer> VideoLayer::Create(VideoFrameProvider* provider) {
  12   return make_scoped_refptr(new VideoLayer(provider));
  13 }
  14
  15 VideoLayer::VideoLayer(VideoFrameProvider* provider) : provider_(provider) {
  16   DCHECK(provider_);
  17 }
  18
  19 VideoLayer::~VideoLayer() {}
  20
  21 scoped_ptr<LayerImpl> VideoLayer::CreateLayerImpl(LayerTreeImpl* tree_impl) {
  22   return VideoLayerImpl::Create(tree_impl, id(), provider_).PassAs<LayerImpl>();
  23 }
  24
  25 bool VideoLayer::Update(ResourceUpdateQueue* queue,
  26                         const OcclusionTracker* occlusion) {
  27   bool updated = Layer::Update(queue, occlusion);
  28
  29   // Video layer doesn't update any resources from the main thread side,
  30   // but repaint rects need to be sent to the VideoLayerImpl via commit.
  31   //
  32   // This is the inefficient legacy redraw path for videos.  It's better to
  33   // communicate this directly to the VideoLayerImpl.
  34   updated |= !update_rect_.IsEmpty();
  35
  36   return updated;
  37 }
  38
  39 }  // namespace cc