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     const LayerSettings& settings,
  13     VideoFrameProvider* provider,
  14     media::VideoRotation video_rotation) {
  15   return make_scoped_refptr(new VideoLayer(settings, provider, video_rotation));
  16 }
  17
  18 VideoLayer::VideoLayer(const LayerSettings& settings,
  19                        VideoFrameProvider* provider,
  20                        media::VideoRotation video_rotation)
  21     : Layer(settings), provider_(provider), video_rotation_(video_rotation) {
  22   DCHECK(provider_);
  23 }
  24
  25 VideoLayer::~VideoLayer() {}
  26
  27 scoped_ptr<LayerImpl> VideoLayer::CreateLayerImpl(LayerTreeImpl* tree_impl) {
  28   scoped_ptr<VideoLayerImpl> impl =
  29       VideoLayerImpl::Create(tree_impl, id(), provider_, video_rotation_);
  30   return impl.Pass();
  31 }
  32
  33 bool VideoLayer::Update(ResourceUpdateQueue* queue,
  34                         const OcclusionTracker<Layer>* occlusion) {
  35   bool updated = Layer::Update(queue, occlusion);
  36
  37   // Video layer doesn't update any resources from the main thread side,
  38   // but repaint rects need to be sent to the VideoLayerImpl via commit.
  39   //
  40   // This is the inefficient legacy redraw path for videos.  It's better to
  41   // communicate this directly to the VideoLayerImpl.
  42   updated |= !update_rect_.IsEmpty();
  43
  44   return updated;
  45 }
  46
  47 }  // namespace cc