UI Resource Manager

cc/trees/layer_tree_host.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include <algorithm>
 #include <stack>
 
 #include "base/bind.h"
@@ skipping 55 matching lines @@
     scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
   scoped_ptr<LayerTreeHost> layer_tree_host(new LayerTreeHost(client,
                                                               settings));
   if (!layer_tree_host->Initialize(impl_task_runner))
     return scoped_ptr<LayerTreeHost>();
   return layer_tree_host.Pass();
 }
 
 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),
       commit_number_(0),
       rendering_stats_instrumentation_(RenderingStatsInstrumentation::Create()),
       output_surface_can_be_initialized_(true),
       output_surface_lost_(true),
       num_failed_recreate_attempts_(0),
       settings_(settings),
       debug_state_(settings.initial_debug_state),
       overdraw_bottom_height_(0.f),
       device_scale_factor_(1.f),
       visible_(true),
       page_scale_factor_(1.f),
       min_page_scale_factor_(1.f),
       max_page_scale_factor_(1.f),
       trigger_idle_updates_(true),
       background_color_(SK_ColorWHITE),
       has_transparent_background_(false),
       partial_texture_update_requests_(0),
       in_paint_layer_contents_(false),
       total_frames_used_for_lcd_text_metrics_(0) {
+
   if (settings_.accelerated_animation_enabled)
     animation_registrar_ = AnimationRegistrar::Create();
   s_num_layer_tree_instances++;
 
   rendering_stats_instrumentation_->set_record_rendering_stats(
       debug_state_.RecordRenderingStats());
 }
 
 bool LayerTreeHost::Initialize(
     scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
@@ skipping 939 matching lines @@
     (*iter).second->Animate(monotonic_time);
     bool start_ready_animations = true;
     (*iter).second->UpdateState(start_ready_animations, NULL);
   }
 }
 
 skia::RefPtr<SkPicture> LayerTreeHost::CapturePicture() {
   return proxy_->CapturePicture();
 }
 
+UIResourceId
+LayerTreeHost::CreateUIResource(scoped_refptr<UIResourceBitmap> bitmap,
+                                UIResourceManagerClient* client) {
+  ui_resource_client_map_[ui_resource_counter_] = client;
+  proxy_->CreateUIResource(ui_resource_counter_,
+                           bitmap,
+                           true);
+  return ui_resource_counter_++;
+}
+
+// Deletes a UI resource.  May safely be called more than once.
+void LayerTreeHost::DeleteUIResource(UIResourceId uid) {
+  proxy_->DeleteUIResource(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) {
+  if (ui_resource_client_map_.find(id) != ui_resource_client_map_.end())
+    ui_resource_client_map_[id]->UIResourceLost(id);
+}
+
+
 }  // namespace cc