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