UI Resource Manager

cc/trees/layer_tree_host.cc

Index: cc/trees/layer_tree_host.cc
===================================================================
--- cc/trees/layer_tree_host.cc	(revision 210393)
+++ cc/trees/layer_tree_host.cc	(working copy)
@@ -73,7 +73,8 @@
 
 LayerTreeHost::LayerTreeHost(LayerTreeHostClient* client,
                              const LayerTreeSettings& settings)
-    : animating_(false),
+    : ui_resource_counter_(1),
+      animating_(false),
       needs_full_tree_sync_(true),
       needs_filter_context_(false),
       client_(client),
@@ -96,6 +97,7 @@
       partial_texture_update_requests_(0),
       in_paint_layer_contents_(false),
       total_frames_used_for_lcd_text_metrics_(0) {
+

[aelias_OOO_until_Jul13, 2013/07/10 23:07:22]

nit: accidental whitespace

[powei, 2013/07/11 23:54:44]

Done.

   if (settings_.accelerated_animation_enabled)
     animation_registrar_ = AnimationRegistrar::Create();
   s_num_layer_tree_instances++;
@@ -252,6 +254,7 @@
   // If there are linked evicted backings, these backings' resources may be put
   // into the impl tree, so we can't draw yet. Determine this before clearing
   // all evicted backings.
+

[aelias_OOO_until_Jul13, 2013/07/10 23:07:22]

nit: accidental whitespace

[powei, 2013/07/11 23:54:44]

Done.

   bool new_impl_tree_has_no_evicted_resources = false;
   if (contents_texture_manager_) {
     new_impl_tree_has_no_evicted_resources =
@@ -349,6 +352,19 @@
     pending_page_scale_animation_.reset();
   }
 
+  // ui resource processing

[aelias_OOO_until_Jul13, 2013/07/10 23:07:22]

Delete this comment

[powei, 2013/07/11 23:54:44]

Done.

+  while (ui_resource_request_queue_.size() > 0) {
+    UIResourceRequest req = ui_resource_request_queue_.front();
+    ui_resource_request_queue_.pop_front();
+    host_impl->CreateUIResource(req.id, req.bitmap, req.async);
+  }
+
+  while (ui_resource_remove_queue_.size() > 0) {
+    UIResourceId uid = ui_resource_remove_queue_.front();
+    ui_resource_remove_queue_.pop_front();
+    host_impl->DeleteUIResource(uid);
+  }
+
   DCHECK(!sync_tree->ViewportSizeInvalid());
 
   if (new_impl_tree_has_no_evicted_resources) {
@@ -1055,4 +1071,35 @@
   return proxy_->CapturePicture();
 }
 
+UIResourceId
+LayerTreeHost::CreateUIResource(scoped_refptr<UIResourceBitmap> bitmap,
+                                UIResourceManagerClient* client) {
+  UIResourceRequest request;
+  request.id = ui_resource_counter_++;
+  request.bitmap = bitmap;
+  request.async = true;
+
+  ui_resource_request_queue_.push_back(request);
+  ui_resource_client_map_[request.id] = client;
+
+  return request.id;
+}
+
+// Deletes a UI resource.  May safely be called more than once.
+void LayerTreeHost::DeleteUIResource(UIResourceId uid) {
+  if (ui_resource_client_map_.find(uid) != ui_resource_client_map_.end()) {
+    ui_resource_remove_queue_.push_back(uid);
+    ui_resource_client_map_.erase(uid);
+  }
+}
+
+void LayerTreeHost::UIResourceReady(UIResourceId id) {
+  if (ui_resource_client_map_.find(id) != ui_resource_client_map_.end()) {
+    ui_resource_client_map_[id]->UIResourceReady(id);
+  }
+}
+
+void LayerTreeHost::UIResourceLost(UIResourceId id) {}
+
+
 }  // namespace cc