cc/layers/io_surface_layer.cc

   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 #include "cc/layers/io_surface_layer.h"
   6
   7 #include "cc/layers/io_surface_layer_impl.h"
   8
   9 namespace cc {
  10
  11 scoped_refptr<IOSurfaceLayer> IOSurfaceLayer::Create() {
  12   return make_scoped_refptr(new IOSurfaceLayer());
  13 }
  14
  15 IOSurfaceLayer::IOSurfaceLayer() : Layer(), io_surface_id_(0) {}
  16
  17 IOSurfaceLayer::~IOSurfaceLayer() {}
  18
  19 void IOSurfaceLayer::SetIOSurfaceProperties(uint32_t io_surface_id,
  20                                             const gfx::Size& size) {
  21   io_surface_id_ = io_surface_id;
  22   io_surface_size_ = size;
  23   SetNeedsCommit();
  24 }
  25
  26 scoped_ptr<LayerImpl> IOSurfaceLayer::CreateLayerImpl(
  27     LayerTreeImpl* tree_impl) {
  28   return IOSurfaceLayerImpl::Create(tree_impl, layer_id_).PassAs<LayerImpl>();
  29 }
  30
  31 bool IOSurfaceLayer::DrawsContent() const {
  32   return io_surface_id_ && Layer::DrawsContent();
  33 }
  34
  35 void IOSurfaceLayer::PushPropertiesTo(LayerImpl* layer) {
  36   Layer::PushPropertiesTo(layer);
  37
  38   IOSurfaceLayerImpl* io_surface_layer =
  39       static_cast<IOSurfaceLayerImpl*>(layer);
  40   io_surface_layer->SetIOSurfaceProperties(io_surface_id_, io_surface_size_);
  41 }
  42
  43 bool IOSurfaceLayer::Update(ResourceUpdateQueue* queue,
  44                             const OcclusionTracker<Layer>* occlusion) {
  45   bool updated = Layer::Update(queue, occlusion);
  46
  47   // This layer doesn't update any resources from the main thread side,
  48   // but repaint rects need to be sent to the layer impl via commit.
  49   return updated || !update_rect_.IsEmpty();
  50 }
  51
  52 }  // namespace cc