dali/internal/common/core-impl.cpp

   1 /*
   2  * Copyright (c) 2023 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali/internal/common/core-impl.h>
  20
  21 // INTERNAL INCLUDES
  22 #include <dali/graphics-api/graphics-controller.h>
  23 #include <dali/integration-api/core.h>
  24 #include <dali/integration-api/debug.h>
  25 #include <dali/integration-api/events/event.h>
  26 #include <dali/integration-api/gl-context-helper-abstraction.h>
  27 #include <dali/integration-api/platform-abstraction.h>
  28 #include <dali/integration-api/processor-interface.h>
  29 #include <dali/integration-api/render-controller.h>
  30 #include <dali/integration-api/trace.h>
  31
  32 #include <dali/internal/event/actors/actor-impl.h>
  33 #include <dali/internal/event/animation/animation-playlist.h>
  34 #include <dali/internal/event/common/event-thread-services.h>
  35 #include <dali/internal/event/common/notification-manager.h>
  36 #include <dali/internal/event/common/property-notification-manager.h>
  37 #include <dali/internal/event/common/stage-impl.h>
  38 #include <dali/internal/event/common/thread-local-storage.h>
  39 #include <dali/internal/event/common/type-registry-impl.h>
  40 #include <dali/internal/event/effects/shader-factory.h>
  41 #include <dali/internal/event/events/event-processor.h>
  42 #include <dali/internal/event/events/gesture-event-processor.h>
  43 #include <dali/internal/event/render-tasks/render-task-list-impl.h>
  44 #include <dali/internal/event/size-negotiation/relayout-controller-impl.h>
  45
  46 #include <dali/internal/update/common/discard-queue.h>
  47 #include <dali/internal/update/manager/render-task-processor.h>
  48 #include <dali/internal/update/manager/update-manager.h>
  49
  50 #include <dali/internal/render/common/performance-monitor.h>
  51 #include <dali/internal/render/common/render-manager.h>
  52
  53 using Dali::Internal::SceneGraph::RenderManager;
  54 using Dali::Internal::SceneGraph::RenderQueue;
  55 using Dali::Internal::SceneGraph::UpdateManager;
  56
  57 namespace
  58 {
  59 // The Update for frame N+1 may be processed whilst frame N is being rendered.
  60 const uint32_t MAXIMUM_UPDATE_COUNT = 2u;
  61
  62 DALI_INIT_TRACE_FILTER(gTraceFilter, DALI_TRACE_PERFORMANCE_MARKER, false);
  63
  64 #if defined(DEBUG_ENABLED)
  65 Debug::Filter* gCoreFilter = Debug::Filter::New(Debug::Concise, false, "LOG_CORE");
  66 #endif
  67 } // namespace
  68
  69 namespace Dali
  70 {
  71 namespace Internal
  72 {
  73 using Integration::Event;
  74 using Integration::GlAbstraction;
  75 using Integration::GlContextHelperAbstraction;
  76 using Integration::PlatformAbstraction;
  77 using Integration::RenderController;
  78 using Integration::RenderStatus;
  79 using Integration::UpdateStatus;
  80
  81 Core::Core(RenderController&                   renderController,
  82            PlatformAbstraction&                platform,
  83            Graphics::Controller&               graphicsController,
  84            Integration::RenderToFrameBuffer    renderToFboEnabled,
  85            Integration::DepthBufferAvailable   depthBufferAvailable,
  86            Integration::StencilBufferAvailable stencilBufferAvailable,
  87            Integration::PartialUpdateAvailable partialUpdateAvailable)
  88 : mRenderController(renderController),
  89   mPlatform(platform),
  90   mGraphicsController(graphicsController),
  91   mProcessingEvent(false),
  92   mProcessorUnregistered(false),
  93   mPostProcessorUnregistered(false),
  94   mRelayoutFlush(false)
  95 {
  96   // Create the thread local storage
  97   CreateThreadLocalStorage();
  98
  99   // This does nothing until Core is built with --enable-performance-monitor
 100   PERFORMANCE_MONITOR_INIT(platform);
 101
 102   mNotificationManager = new NotificationManager();
 103
 104   mAnimationPlaylist = AnimationPlaylist::New();
 105
 106   mPropertyNotificationManager = PropertyNotificationManager::New();
 107
 108   mRenderTaskProcessor = new SceneGraph::RenderTaskProcessor();
 109
 110   mRenderManager = RenderManager::New(graphicsController, depthBufferAvailable, stencilBufferAvailable, partialUpdateAvailable);
 111
 112   RenderQueue& renderQueue = mRenderManager->GetRenderQueue();
 113
 114   mUpdateManager = new UpdateManager(*mNotificationManager,
 115                                      *mAnimationPlaylist,
 116                                      *mPropertyNotificationManager,
 117                                      renderController,
 118                                      *mRenderManager,
 119                                      renderQueue,
 120                                      *mRenderTaskProcessor);
 121
 122   mRenderManager->SetShaderSaver(*mUpdateManager);
 123
 124   mObjectRegistry = ObjectRegistry::New();
 125
 126   mStage = IntrusivePtr<Stage>(Stage::New(*mUpdateManager));
 127
 128   // This must be called after stage is created but before stage initialization
 129   mRelayoutController = IntrusivePtr<RelayoutController>(new RelayoutController(mRenderController));
 130
 131   mGestureEventProcessor = new GestureEventProcessor(*mUpdateManager, mRenderController);
 132
 133   mShaderFactory = new ShaderFactory();
 134   mUpdateManager->SetShaderSaver(*mShaderFactory);
 135
 136   GetImplementation(Dali::TypeRegistry::Get()).CallInitFunctions();
 137
 138   DALI_LOG_RELEASE_INFO("Node size: %lu\n", sizeof(Dali::Internal::SceneGraph::Node));
 139   DALI_LOG_RELEASE_INFO("Renderer size: %lu\n", sizeof(Dali::Internal::SceneGraph::Renderer));
 140   DALI_LOG_RELEASE_INFO("RenderItem size: %lu\n", sizeof(Dali::Internal::SceneGraph::RenderItem));
 141 }
 142
 143 Core::~Core()
 144 {
 145   /*
 146    * The order of destructing these singletons is important!!!
 147    */
 148
 149   // clear the thread local storage first
 150   // allows core to be created / deleted many times in the same thread (how TET cases work).
 151   // Do this before mStage.Reset() so Stage::IsInstalled() returns false
 152   ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
 153   if(tls)
 154   {
 155     tls->Remove();
 156     tls->Unreference();
 157   }
 158
 159   mObjectRegistry.Reset();
 160
 161   // Stop relayout requests being raised on stage destruction
 162   mRelayoutController.Reset();
 163
 164   // remove (last?) reference to stage
 165   mStage.Reset();
 166 }
 167
 168 void Core::Initialize()
 169 {
 170   mStage->Initialize(*mScenes[0]);
 171 }
 172
 173 Integration::ContextNotifierInterface* Core::GetContextNotifier()
 174 {
 175   return mStage.Get();
 176 }
 177
 178 void Core::RecoverFromContextLoss()
 179 {
 180   DALI_LOG_INFO(gCoreFilter, Debug::Verbose, "Core::RecoverFromContextLoss()\n");
 181
 182   mStage->GetRenderTaskList().RecoverFromContextLoss(); // Re-trigger render-tasks
 183 }
 184
 185 void Core::ContextCreated()
 186 {
 187 }
 188
 189 void Core::ContextDestroyed()
 190 {
 191 }
 192
 193 void Core::Update(float elapsedSeconds, uint32_t lastVSyncTimeMilliseconds, uint32_t nextVSyncTimeMilliseconds, Integration::UpdateStatus& status, bool renderToFboEnabled, bool isRenderingToFbo, bool uploadOnly)
 194 {
 195   // set the time delta so adaptor can easily print FPS with a release build with 0 as
 196   // it is cached by frametime
 197   status.secondsFromLastFrame = elapsedSeconds;
 198
 199   // Render returns true when there are updates on the stage or one or more animations are completed.
 200   // Use the estimated time diff till we render as the elapsed time.
 201   status.keepUpdating = mUpdateManager->Update(elapsedSeconds,
 202                                                lastVSyncTimeMilliseconds,
 203                                                nextVSyncTimeMilliseconds,
 204                                                renderToFboEnabled,
 205                                                isRenderingToFbo,
 206                                                uploadOnly);
 207
 208   // Check the Notification Manager message queue to set needsNotification
 209   status.needsNotification = mNotificationManager->MessagesToProcess();
 210
 211   // No need to keep update running if there are notifications to process.
 212   // Any message to update will wake it up anyways
 213 }
 214
 215 void Core::PreRender(RenderStatus& status, bool forceClear)
 216 {
 217   mRenderManager->PreRender(status, forceClear);
 218 }
 219
 220 void Core::PreRender(Integration::Scene& scene, std::vector<Rect<int>>& damagedRects)
 221 {
 222   mRenderManager->PreRender(scene, damagedRects);
 223 }
 224
 225 void Core::RenderScene(RenderStatus& status, Integration::Scene& scene, bool renderToFbo)
 226 {
 227   mRenderManager->RenderScene(status, scene, renderToFbo);
 228 }
 229
 230 void Core::RenderScene(RenderStatus& status, Integration::Scene& scene, bool renderToFbo, Rect<int>& clippingRect)
 231 {
 232   mRenderManager->RenderScene(status, scene, renderToFbo, clippingRect);
 233 }
 234
 235 void Core::PostRender()
 236 {
 237   mUpdateManager->PostRender();
 238   mRenderManager->PostRender();
 239 }
 240
 241 void Core::SceneCreated()
 242 {
 243   mStage->EmitSceneCreatedSignal();
 244
 245   mRelayoutController->OnApplicationSceneCreated();
 246
 247   for(const auto& scene : mScenes)
 248   {
 249     Dali::Actor sceneRootLayer = scene->GetRootLayer();
 250     mRelayoutController->RequestRelayoutTree(sceneRootLayer);
 251   }
 252 }
 253
 254 void Core::QueueEvent(const Integration::Event& event)
 255 {
 256   if(mScenes.size() != 0)
 257   {
 258     mScenes.front()->QueueEvent(event);
 259   }
 260 }
 261
 262 void Core::ForceRelayout()
 263 {
 264   if(mRelayoutFlush)
 265   {
 266     DALI_LOG_ERROR("ForceRelayout should not be called from within RelayoutAndFlush!\n");
 267     return;
 268   }
 269
 270   // Scene could be added or removed while processing the events
 271   // Copy the Scene container locally to avoid possibly invalid iterator
 272   SceneContainer scenes = mScenes;
 273
 274   RelayoutAndFlush(scenes);
 275 }
 276
 277 void Core::ProcessEvents()
 278 {
 279   // Guard against calls to ProcessEvents() during ProcessEvents()
 280   if(mProcessingEvent)
 281   {
 282     DALI_LOG_ERROR("ProcessEvents should not be called from within ProcessEvents!\n");
 283     mRenderController.RequestProcessEventsOnIdle();
 284     return;
 285   }
 286
 287   mProcessingEvent = true;
 288   mRelayoutController->SetProcessingCoreEvents(true);
 289
 290   // Signal that any messages received will be flushed soon
 291   mUpdateManager->EventProcessingStarted();
 292
 293   // Scene could be added or removed while processing the events
 294   // Copy the Scene container locally to avoid possibly invalid iterator
 295   SceneContainer scenes = mScenes;
 296
 297   // process events in all scenes
 298   for(auto scene : scenes)
 299   {
 300     scene->ProcessEvents();
 301   }
 302
 303   mNotificationManager->ProcessMessages();
 304
 305   // Emit signal here to inform listeners that event processing has finished.
 306   for(auto scene : scenes)
 307   {
 308     scene->EmitEventProcessingFinishedSignal();
 309   }
 310
 311   RelayoutAndFlush(scenes);
 312
 313   mUpdateManager->EventProcessingFinished();
 314
 315   // Check if the touch or gestures require updates.
 316   const bool gestureNeedsUpdate = mGestureEventProcessor->NeedsUpdate();
 317
 318   if(gestureNeedsUpdate)
 319   {
 320     // tell the render controller to keep update thread running
 321     mRenderController.RequestUpdate();
 322   }
 323
 324   mRelayoutController->SetProcessingCoreEvents(false);
 325
 326   // ProcessEvents() may now be called again
 327   mProcessingEvent = false;
 328 }
 329
 330 void Core::RelayoutAndFlush(SceneContainer& scenes)
 331 {
 332   if(mRelayoutFlush)
 333   {
 334     DALI_LOG_ERROR("RelayoutAndFlush should not be called from within RelayoutAndFlush!\n");
 335     return;
 336   }
 337
 338   const bool isProcessEvents = mProcessingEvent;
 339
 340   if(!isProcessEvents)
 341   {
 342     // Fake that we are in ProcessEvents()
 343     mProcessingEvent = true;
 344     mRelayoutController->SetProcessingCoreEvents(true);
 345
 346     // Signal that any messages received will be flushed soon
 347     mUpdateManager->EventProcessingStarted();
 348   }
 349
 350   mRelayoutFlush = true;
 351
 352   // Run any registered processors
 353   RunProcessors();
 354
 355   // Run the size negotiation after event processing finished signal
 356   mRelayoutController->Relayout();
 357
 358   // Run any registered post processors
 359   RunPostProcessors();
 360
 361   // Rebuild depth tree after event processing has finished
 362   for(auto& scene : scenes)
 363   {
 364     scene->RebuildDepthTree();
 365   }
 366
 367   // Flush any queued messages for the update-thread
 368   const bool messagesToProcess = mUpdateManager->FlushQueue();
 369
 370   if(messagesToProcess)
 371   {
 372     // tell the render controller to keep update thread running
 373     mRenderController.RequestUpdate();
 374   }
 375
 376   mRelayoutFlush = false;
 377
 378   if(!isProcessEvents)
 379   {
 380     // Revert fake informations
 381     mProcessingEvent = false;
 382     mRelayoutController->SetProcessingCoreEvents(false);
 383
 384     mUpdateManager->EventProcessingFinished();
 385   }
 386 }
 387
 388 uint32_t Core::GetMaximumUpdateCount() const
 389 {
 390   return MAXIMUM_UPDATE_COUNT;
 391 }
 392
 393 void Core::RegisterProcessor(Integration::Processor& processor, bool postProcessor)
 394 {
 395   if(postProcessor)
 396   {
 397     mPostProcessors.PushBack(&processor);
 398   }
 399   else
 400   {
 401     mProcessors.PushBack(&processor);
 402   }
 403 }
 404
 405 void Core::UnregisterProcessor(Integration::Processor& processor, bool postProcessor)
 406 {
 407   if(postProcessor)
 408   {
 409     auto iter = std::find(mPostProcessors.Begin(), mPostProcessors.End(), &processor);
 410     if(iter != mPostProcessors.End())
 411     {
 412       mPostProcessors.Erase(iter);
 413       mPostProcessorUnregistered = true;
 414     }
 415   }
 416   else
 417   {
 418     auto iter = std::find(mProcessors.Begin(), mProcessors.End(), &processor);
 419     if(iter != mProcessors.End())
 420     {
 421       mProcessors.Erase(iter);
 422       mProcessorUnregistered = true;
 423     }
 424   }
 425 }
 426
 427 void Core::RunProcessors()
 428 {
 429   if(mProcessors.Count() != 0)
 430   {
 431 #ifdef TRACE_ENABLED
 432     if(gTraceFilter && gTraceFilter->IsTraceEnabled())
 433     {
 434       std::ostringstream stream;
 435       stream << "[" << mProcessors.Count() << "]";
 436       DALI_TRACE_BEGIN_WITH_MESSAGE(gTraceFilter, "DALI_CORE_RUN_PROCESSORS", stream.str().c_str());
 437     }
 438 #endif
 439
 440     // Copy processor pointers to prevent changes to vector affecting loop iterator.
 441     Dali::Vector<Integration::Processor*> processors(mProcessors);
 442
 443     // To prevent accessing processor unregistered during the loop
 444     mProcessorUnregistered = false;
 445
 446     for(auto processor : processors)
 447     {
 448       if(processor)
 449       {
 450         if(!mProcessorUnregistered)
 451         {
 452           processor->Process(false);
 453         }
 454         else
 455         {
 456           // Run processor if the processor is still in the list.
 457           // It may be removed during the loop.
 458           auto iter = std::find(mProcessors.Begin(), mProcessors.End(), processor);
 459           if(iter != mProcessors.End())
 460           {
 461             processor->Process(false);
 462           }
 463         }
 464       }
 465     }
 466 #ifdef TRACE_ENABLED
 467     if(gTraceFilter && gTraceFilter->IsTraceEnabled())
 468     {
 469       std::ostringstream stream;
 470       stream << "[" << mProcessors.Count();
 471       if(mProcessorUnregistered)
 472       {
 473         stream << ", processor changed";
 474       }
 475       stream << "]";
 476       DALI_TRACE_END_WITH_MESSAGE(gTraceFilter, "DALI_CORE_RUN_PROCESSORS", stream.str().c_str());
 477     }
 478 #endif
 479   }
 480 }
 481
 482 void Core::RunPostProcessors()
 483 {
 484   if(mPostProcessors.Count() != 0)
 485   {
 486 #ifdef TRACE_ENABLED
 487     if(gTraceFilter && gTraceFilter->IsTraceEnabled())
 488     {
 489       std::ostringstream stream;
 490       stream << "[" << mPostProcessors.Count() << "]";
 491       DALI_TRACE_BEGIN_WITH_MESSAGE(gTraceFilter, "DALI_CORE_RUN_POST_PROCESSORS", stream.str().c_str());
 492     }
 493 #endif
 494
 495     // Copy processor pointers to prevent changes to vector affecting loop iterator.
 496     Dali::Vector<Integration::Processor*> processors(mPostProcessors);
 497
 498     // To prevent accessing processor unregistered during the loop
 499     mPostProcessorUnregistered = false;
 500
 501     for(auto processor : processors)
 502     {
 503       if(processor)
 504       {
 505         if(!mPostProcessorUnregistered)
 506         {
 507           processor->Process(true);
 508         }
 509         else
 510         {
 511           // Run processor if the processor is still in the list.
 512           // It may be removed during the loop.
 513           auto iter = std::find(mPostProcessors.Begin(), mPostProcessors.End(), processor);
 514           if(iter != mPostProcessors.End())
 515           {
 516             processor->Process(true);
 517           }
 518         }
 519       }
 520     }
 521
 522 #ifdef TRACE_ENABLED
 523     if(gTraceFilter && gTraceFilter->IsTraceEnabled())
 524     {
 525       std::ostringstream stream;
 526       stream << "[" << mPostProcessors.Count();
 527       if(mPostProcessorUnregistered)
 528       {
 529         stream << ", post processor changed";
 530       }
 531       stream << "]";
 532       DALI_TRACE_END_WITH_MESSAGE(gTraceFilter, "DALI_CORE_RUN_POST_PROCESSORS", stream.str().c_str());
 533     }
 534 #endif
 535   }
 536 }
 537
 538 StagePtr Core::GetCurrentStage()
 539 {
 540   return mStage.Get();
 541 }
 542
 543 PlatformAbstraction& Core::GetPlatform()
 544 {
 545   return mPlatform;
 546 }
 547
 548 UpdateManager& Core::GetUpdateManager()
 549 {
 550   return *(mUpdateManager);
 551 }
 552
 553 RenderManager& Core::GetRenderManager()
 554 {
 555   return *(mRenderManager);
 556 }
 557
 558 NotificationManager& Core::GetNotificationManager()
 559 {
 560   return *(mNotificationManager);
 561 }
 562
 563 ShaderFactory& Core::GetShaderFactory()
 564 {
 565   return *(mShaderFactory);
 566 }
 567
 568 GestureEventProcessor& Core::GetGestureEventProcessor()
 569 {
 570   return *(mGestureEventProcessor);
 571 }
 572
 573 RelayoutController& Core::GetRelayoutController()
 574 {
 575   return *(mRelayoutController.Get());
 576 }
 577
 578 ObjectRegistry& Core::GetObjectRegistry() const
 579 {
 580   return *(mObjectRegistry.Get());
 581 }
 582
 583 void Core::LogMemoryPools() const
 584 {
 585   uint32_t animationPoolCapacity    = SceneGraph::Animation::GetMemoryPoolCapacity();
 586   uint32_t renderItemPoolCapacity   = SceneGraph::RenderItem::GetMemoryPoolCapacity();
 587   uint32_t relayoutItemPoolCapacity = mRelayoutController->GetMemoryPoolCapacity();
 588   uint32_t rendererPoolCapacity     = SceneGraph::Renderer::GetMemoryPoolCapacity();
 589   uint32_t textureSetPoolCapacity   = SceneGraph::TextureSet::GetMemoryPoolCapacity();
 590   uint32_t renderTaskPoolCapacity   = SceneGraph::RenderTaskList::GetMemoryPoolCapacity();
 591   uint32_t nodePoolCapacity         = SceneGraph::Node::GetMemoryPoolCapacity();
 592
 593   DALI_LOG_RELEASE_INFO(
 594     "\nMemory Pool capacities:\n"
 595     "  Animations:    %lu\n"
 596     "  RenderItems:   %lu\n"
 597     "  RelayoutItems: %lu\n"
 598     "  Renderers:     %lu\n"
 599     "  TextureSets:   %lu\n"
 600     "  RenderTasks:   %lu\n"
 601     "  Nodes:         %lu\n",
 602     animationPoolCapacity,
 603     renderItemPoolCapacity,
 604     relayoutItemPoolCapacity,
 605     rendererPoolCapacity,
 606     textureSetPoolCapacity,
 607     renderTaskPoolCapacity,
 608     nodePoolCapacity);
 609
 610   uint32_t updateQCapacity = mUpdateManager->GetUpdateMessageQueueCapacity();
 611   uint32_t renderQCapacity = mUpdateManager->GetRenderMessageQueueCapacity();
 612
 613   DALI_LOG_RELEASE_INFO(
 614     "\nMessage Queue capacities:\n"
 615     "  UpdateQueue: %lu\n"
 616     "  RenderQueue: %lu\n",
 617     updateQCapacity,
 618     renderQCapacity);
 619
 620   size_t renderInstructionCapacity = mUpdateManager->GetRenderInstructionCapacity();
 621   DALI_LOG_RELEASE_INFO("\nRenderInstruction capacity: %lu\n", renderInstructionCapacity);
 622 }
 623
 624 EventThreadServices& Core::GetEventThreadServices()
 625 {
 626   return *this;
 627 }
 628
 629 PropertyNotificationManager& Core::GetPropertyNotificationManager() const
 630 {
 631   return *(mPropertyNotificationManager);
 632 }
 633
 634 AnimationPlaylist& Core::GetAnimationPlaylist() const
 635 {
 636   return *(mAnimationPlaylist);
 637 }
 638
 639 Integration::GlAbstraction& Core::GetGlAbstraction() const
 640 {
 641   return mGraphicsController.GetGlAbstraction();
 642 }
 643
 644 void Core::AddScene(Scene* scene)
 645 {
 646   mScenes.push_back(scene);
 647 }
 648
 649 void Core::RemoveScene(Scene* scene)
 650 {
 651   auto iter = std::find(mScenes.begin(), mScenes.end(), scene);
 652   if(iter != mScenes.end())
 653   {
 654     mScenes.erase(iter);
 655   }
 656 }
 657
 658 void Core::CreateThreadLocalStorage()
 659 {
 660   // a pointer to the ThreadLocalStorage object will be stored in TLS
 661   // The ThreadLocalStorage object should be deleted by the Core destructor
 662   ThreadLocalStorage* tls = new ThreadLocalStorage(this);
 663   tls->Reference();
 664 }
 665
 666 void Core::RegisterObject(Dali::BaseObject* object)
 667 {
 668   mObjectRegistry = &ThreadLocalStorage::Get().GetObjectRegistry();
 669   mObjectRegistry->RegisterObject(object);
 670 }
 671
 672 void Core::UnregisterObject(Dali::BaseObject* object)
 673 {
 674   mObjectRegistry = &ThreadLocalStorage::Get().GetObjectRegistry();
 675   mObjectRegistry->UnregisterObject(object);
 676 }
 677
 678 Integration::RenderController& Core::GetRenderController()
 679 {
 680   return mRenderController;
 681 }
 682
 683 uint32_t* Core::ReserveMessageSlot(uint32_t size, bool updateScene)
 684 {
 685   return mUpdateManager->ReserveMessageSlot(size, updateScene);
 686 }
 687
 688 BufferIndex Core::GetEventBufferIndex() const
 689 {
 690   return mUpdateManager->GetEventBufferIndex();
 691 }
 692
 693 } // namespace Internal
 694
 695 } // namespace Dali