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(
  12     VideoFrameProvider* provider,
  13     media::VideoRotation video_rotation) {
  14   return make_scoped_refptr(new VideoLayer(provider, video_rotation));
  15 }
  16
  17 VideoLayer::VideoLayer(VideoFrameProvider* provider,
  18                        media::VideoRotation video_rotation)
  19     : provider_(provider), video_rotation_(video_rotation) {
  20   DCHECK(provider_);
  21 }
  22
  23 VideoLayer::~VideoLayer() {}
  24
  25 scoped_ptr<LayerImpl> VideoLayer::CreateLayerImpl(LayerTreeImpl* tree_impl) {
  26   scoped_ptr<VideoLayerImpl> impl =
  27       VideoLayerImpl::Create(tree_impl, id(), provider_, video_rotation_);
  28   return impl.Pass();
  29 }
  30
  31 bool VideoLayer::Update(ResourceUpdateQueue* queue,
  32                         const OcclusionTracker<Layer>* occlusion) {
  33   bool updated = Layer::Update(queue, occlusion);
  34
  35   // Video layer doesn't update any resources from the main thread side,
  36   // but repaint rects need to be sent to the VideoLayerImpl via commit.
  37   //
  38   // This is the inefficient legacy redraw path for videos.  It's better to
  39   // communicate this directly to the VideoLayerImpl.
  40   updated |= !update_rect_.IsEmpty();
  41
  42   return updated;
  43 }
  44
  45 }  // namespace cc