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     const LayerSettings& settings) {
  13   return make_scoped_refptr(new IOSurfaceLayer(settings));
  14 }
  15
  16 IOSurfaceLayer::IOSurfaceLayer(const LayerSettings& settings)
  17     : Layer(settings), io_surface_id_(0) {
  18 }
  19
  20 IOSurfaceLayer::~IOSurfaceLayer() {}
  21
  22 void IOSurfaceLayer::SetIOSurfaceProperties(uint32_t io_surface_id,
  23                                             const gfx::Size& size) {
  24   io_surface_id_ = io_surface_id;
  25   io_surface_size_ = size;
  26   UpdateDrawsContent(HasDrawableContent());
  27   SetNeedsCommit();
  28 }
  29
  30 scoped_ptr<LayerImpl> IOSurfaceLayer::CreateLayerImpl(
  31     LayerTreeImpl* tree_impl) {
  32   return IOSurfaceLayerImpl::Create(tree_impl, layer_id_);
  33 }
  34
  35 bool IOSurfaceLayer::HasDrawableContent() const {
  36   return io_surface_id_ && Layer::HasDrawableContent();
  37 }
  38
  39 void IOSurfaceLayer::PushPropertiesTo(LayerImpl* layer) {
  40   Layer::PushPropertiesTo(layer);
  41
  42   IOSurfaceLayerImpl* io_surface_layer =
  43       static_cast<IOSurfaceLayerImpl*>(layer);
  44   io_surface_layer->SetIOSurfaceProperties(io_surface_id_, io_surface_size_);
  45 }
  46
  47 bool IOSurfaceLayer::Update(ResourceUpdateQueue* queue,
  48                             const OcclusionTracker<Layer>* occlusion) {
  49   bool updated = Layer::Update(queue, occlusion);
  50
  51   // This layer doesn't update any resources from the main thread side,
  52   // but repaint rects need to be sent to the layer impl via commit.
  53   return updated || !update_rect_.IsEmpty();
  54 }
  55
  56 }  // namespace cc