dali/internal/render/common/render-manager.cpp

   1 /*
   2  * Copyright (c) 2024 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/render/common/render-manager.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <memory.h>
  23
  24 // INTERNAL INCLUDES
  25 #include <dali/integration-api/core.h>
  26 #include <dali/internal/common/ordered-set.h>
  27
  28 #include <dali/internal/event/common/scene-impl.h>
  29
  30 #include <dali/internal/update/common/scene-graph-scene.h>
  31 #include <dali/internal/update/nodes/scene-graph-layer.h>
  32 #include <dali/internal/update/render-tasks/scene-graph-camera.h>
  33
  34 #include <dali/internal/common/owner-key-container.h>
  35
  36 #include <dali/internal/render/common/render-algorithms.h>
  37 #include <dali/internal/render/common/render-debug.h>
  38 #include <dali/internal/render/common/render-instruction.h>
  39 #include <dali/internal/render/common/render-tracker.h>
  40 #include <dali/internal/render/queue/render-queue.h>
  41 #include <dali/internal/render/renderers/pipeline-cache.h>
  42 #include <dali/internal/render/renderers/render-frame-buffer.h>
  43 #include <dali/internal/render/renderers/render-texture.h>
  44 #include <dali/internal/render/renderers/uniform-buffer-manager.h>
  45 #include <dali/internal/render/renderers/uniform-buffer.h>
  46 #include <dali/internal/render/shaders/program-controller.h>
  47
  48 #include <memory>
  49
  50 namespace Dali
  51 {
  52 namespace Internal
  53 {
  54 namespace SceneGraph
  55 {
  56 #if defined(DEBUG_ENABLED)
  57 namespace
  58 {
  59 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_RENDER_MANAGER");
  60 } // unnamed namespace
  61 #endif
  62
  63 namespace
  64 {
  65 // TODO : Cache clean logic have some problem now. Just block it until bug resolved
  66 //constexpr uint32_t CACHE_CLEAN_FRAME_COUNT = 600u; // 60fps * 10sec
  67
  68 inline Graphics::Rect2D RecalculateScissorArea(const Graphics::Rect2D& scissorArea, int orientation, const Rect<int32_t>& viewportRect)
  69 {
  70   Graphics::Rect2D newScissorArea;
  71
  72   if(orientation == 90)
  73   {
  74     newScissorArea.x      = viewportRect.height - (scissorArea.y + scissorArea.height);
  75     newScissorArea.y      = scissorArea.x;
  76     newScissorArea.width  = scissorArea.height;
  77     newScissorArea.height = scissorArea.width;
  78   }
  79   else if(orientation == 180)
  80   {
  81     newScissorArea.x      = viewportRect.width - (scissorArea.x + scissorArea.width);
  82     newScissorArea.y      = viewportRect.height - (scissorArea.y + scissorArea.height);
  83     newScissorArea.width  = scissorArea.width;
  84     newScissorArea.height = scissorArea.height;
  85   }
  86   else if(orientation == 270)
  87   {
  88     newScissorArea.x      = scissorArea.y;
  89     newScissorArea.y      = viewportRect.width - (scissorArea.x + scissorArea.width);
  90     newScissorArea.width  = scissorArea.height;
  91     newScissorArea.height = scissorArea.width;
  92   }
  93   else
  94   {
  95     newScissorArea.x      = scissorArea.x;
  96     newScissorArea.y      = scissorArea.y;
  97     newScissorArea.width  = scissorArea.width;
  98     newScissorArea.height = scissorArea.height;
  99   }
 100   return newScissorArea;
 101 }
 102
 103 inline Rect<int32_t> CalculateUpdateArea(RenderItem& item, BufferIndex renderBufferIndex, const Rect<int32_t>& viewportRect)
 104 {
 105   Vector4 updateArea;
 106   if(item.mNode && item.mNode->IsTextureUpdateAreaUsed() && item.mRenderer)
 107   {
 108     updateArea = item.mRenderer->GetTextureUpdateArea();
 109   }
 110   else
 111   {
 112     updateArea = item.mRenderer ? item.mRenderer->GetVisualTransformedUpdateArea(renderBufferIndex, item.mUpdateArea) : item.mUpdateArea;
 113   }
 114
 115   return RenderItem::CalculateViewportSpaceAABB(item.mModelViewMatrix, Vector3(updateArea.x, updateArea.y, 0.0f), Vector3(updateArea.z, updateArea.w, 0.0f), viewportRect.width, viewportRect.height);
 116 }
 117
 118 inline void AlignDamagedRect(Rect<int32_t>& rect)
 119 {
 120   const int left   = rect.x;
 121   const int top    = rect.y;
 122   const int right  = rect.x + rect.width;
 123   const int bottom = rect.y + rect.height;
 124   rect.x           = (left / 16) * 16;
 125   rect.y           = (top / 16) * 16;
 126   rect.width       = ((right + 16) / 16) * 16 - rect.x;
 127   rect.height      = ((bottom + 16) / 16) * 16 - rect.y;
 128 }
 129 } // namespace
 130
 131 /**
 132  * Structure to contain internal data
 133  */
 134 struct RenderManager::Impl
 135 {
 136   Impl(Graphics::Controller&               graphicsController,
 137        Integration::DepthBufferAvailable   depthBufferAvailableParam,
 138        Integration::StencilBufferAvailable stencilBufferAvailableParam,
 139        Integration::PartialUpdateAvailable partialUpdateAvailableParam)
 140   : graphicsController(graphicsController),
 141     renderAlgorithms(graphicsController),
 142     programController(graphicsController),
 143     depthBufferAvailable(depthBufferAvailableParam),
 144     stencilBufferAvailable(stencilBufferAvailableParam),
 145     partialUpdateAvailable(partialUpdateAvailableParam)
 146   {
 147     uniformBufferManager = std::make_unique<Render::UniformBufferManager>(&graphicsController);
 148     pipelineCache        = std::make_unique<Render::PipelineCache>(graphicsController);
 149   }
 150
 151   ~Impl()
 152   {
 153     rendererContainer.Clear(); // clear now before the pipeline cache is deleted
 154   }
 155
 156   void AddRenderTracker(Render::RenderTracker* renderTracker)
 157   {
 158     DALI_ASSERT_DEBUG(renderTracker != nullptr);
 159     mRenderTrackers.PushBack(renderTracker);
 160   }
 161
 162   void RemoveRenderTracker(Render::RenderTracker* renderTracker)
 163   {
 164     mRenderTrackers.EraseObject(renderTracker);
 165   }
 166
 167   void UpdateTrackers()
 168   {
 169     for(auto&& iter : mRenderTrackers)
 170     {
 171       iter->PollSyncObject();
 172     }
 173   }
 174
 175   // the order is important for destruction,
 176   Graphics::Controller&           graphicsController;
 177   RenderQueue                     renderQueue;      ///< A message queue for receiving messages from the update-thread.
 178   std::vector<SceneGraph::Scene*> sceneContainer;   ///< List of pointers to the scene graph objects of the scenes
 179   Render::RenderAlgorithms        renderAlgorithms; ///< The RenderAlgorithms object is used to action the renders required by a RenderInstruction
 180
 181   OrderedSet<Render::Sampler>         samplerContainer;      ///< List of owned samplers
 182   OrderedSet<Render::FrameBuffer>     frameBufferContainer;  ///< List of owned framebuffers
 183   OrderedSet<Render::VertexBuffer>    vertexBufferContainer; ///< List of owned vertex buffers
 184   OrderedSet<Render::Geometry>        geometryContainer;     ///< List of owned Geometries
 185   OwnerKeyContainer<Render::Renderer> rendererContainer;     ///< List of owned renderers
 186   OwnerKeyContainer<Render::Texture>  textureContainer;      ///< List of owned textures
 187
 188   OrderedSet<Render::RenderTracker> mRenderTrackers; ///< List of owned render trackers
 189
 190   OwnerKeyContainer<Render::Texture> textureDiscardQueue; ///< Discarded textures
 191
 192   ProgramController programController; ///< Owner of the programs
 193
 194   std::unique_ptr<Render::UniformBufferManager> uniformBufferManager; ///< The uniform buffer manager
 195   std::unique_ptr<Render::PipelineCache>        pipelineCache;
 196
 197   Integration::DepthBufferAvailable   depthBufferAvailable;   ///< Whether the depth buffer is available
 198   Integration::StencilBufferAvailable stencilBufferAvailable; ///< Whether the stencil buffer is available
 199   Integration::PartialUpdateAvailable partialUpdateAvailable; ///< Whether the partial update is available
 200
 201   Vector<Render::TextureKey> updatedTextures{}; ///< The updated texture list
 202
 203   uint32_t    frameCount{0u};                                                    ///< The current frame count
 204   BufferIndex renderBufferIndex{SceneGraphBuffers::INITIAL_UPDATE_BUFFER_INDEX}; ///< The index of the buffer to read from;
 205
 206   bool lastFrameWasRendered{false}; ///< Keeps track of the last frame being rendered due to having render instructions
 207   bool commandBufferSubmitted{false};
 208 };
 209
 210 RenderManager* RenderManager::New(Graphics::Controller&               graphicsController,
 211                                   Integration::DepthBufferAvailable   depthBufferAvailable,
 212                                   Integration::StencilBufferAvailable stencilBufferAvailable,
 213                                   Integration::PartialUpdateAvailable partialUpdateAvailable)
 214 {
 215   auto* manager  = new RenderManager;
 216   manager->mImpl = new Impl(graphicsController,
 217                             depthBufferAvailable,
 218                             stencilBufferAvailable,
 219                             partialUpdateAvailable);
 220   return manager;
 221 }
 222
 223 RenderManager::RenderManager()
 224 : mImpl(nullptr)
 225 {
 226 }
 227
 228 RenderManager::~RenderManager()
 229 {
 230   delete mImpl;
 231 }
 232
 233 void RenderManager::ContextDestroyed()
 234 {
 235   mImpl->uniformBufferManager->ContextDestroyed();
 236 }
 237
 238 RenderQueue& RenderManager::GetRenderQueue()
 239 {
 240   return mImpl->renderQueue;
 241 }
 242
 243 void RenderManager::SetShaderSaver(ShaderSaver& upstream)
 244 {
 245 }
 246
 247 void RenderManager::AddRenderer(const Render::RendererKey& renderer)
 248 {
 249   // Initialize the renderer as we are now in render thread
 250   renderer->Initialize(mImpl->graphicsController, mImpl->programController, *(mImpl->uniformBufferManager.get()), *(mImpl->pipelineCache.get()));
 251
 252   mImpl->rendererContainer.PushBack(renderer);
 253 }
 254
 255 void RenderManager::RemoveRenderer(const Render::RendererKey& renderer)
 256 {
 257   mImpl->rendererContainer.EraseKey(renderer);
 258 }
 259
 260 void RenderManager::AddSampler(OwnerPointer<Render::Sampler>& sampler)
 261 {
 262   sampler->Initialize(mImpl->graphicsController);
 263   mImpl->samplerContainer.PushBack(sampler.Release());
 264 }
 265
 266 void RenderManager::RemoveSampler(Render::Sampler* sampler)
 267 {
 268   mImpl->samplerContainer.EraseObject(sampler);
 269 }
 270
 271 void RenderManager::AddTexture(const Render::TextureKey& textureKey)
 272 {
 273   DALI_ASSERT_DEBUG(textureKey && "Trying to add empty texture key");
 274
 275   textureKey->Initialize(mImpl->graphicsController, *this);
 276   mImpl->textureContainer.PushBack(textureKey);
 277   mImpl->updatedTextures.PushBack(textureKey);
 278 }
 279
 280 void RenderManager::RemoveTexture(const Render::TextureKey& textureKey)
 281 {
 282   DALI_ASSERT_DEBUG(textureKey && "Trying to remove empty texture key");
 283
 284   // Find the texture, use std::find so we can do the erase by iterator safely
 285   auto iter = std::find(mImpl->textureContainer.Begin(), mImpl->textureContainer.End(), textureKey);
 286
 287   if(iter != mImpl->textureContainer.End())
 288   {
 289     // Destroy texture.
 290     textureKey->Destroy();
 291
 292     // Transfer ownership to the discard queue, this keeps the object alive, until the render-thread has finished with it
 293     mImpl->textureDiscardQueue.PushBack(mImpl->textureContainer.Release(iter));
 294   }
 295 }
 296
 297 void RenderManager::UploadTexture(const Render::TextureKey& textureKey, PixelDataPtr pixelData, const Graphics::UploadParams& params)
 298 {
 299   DALI_ASSERT_DEBUG(textureKey && "Trying to upload to empty texture key");
 300   textureKey->Upload(pixelData, params);
 301
 302   mImpl->updatedTextures.PushBack(textureKey);
 303 }
 304
 305 void RenderManager::GenerateMipmaps(const Render::TextureKey& textureKey)
 306 {
 307   DALI_ASSERT_DEBUG(textureKey && "Trying to generate mipmaps on empty texture key");
 308   textureKey->GenerateMipmaps();
 309
 310   mImpl->updatedTextures.PushBack(textureKey);
 311 }
 312
 313 void RenderManager::SetTextureSize(const Render::TextureKey& textureKey, const Dali::ImageDimensions& size)
 314 {
 315   DALI_ASSERT_DEBUG(textureKey && "Trying to set size on empty texture key");
 316   textureKey->SetWidth(size.GetWidth());
 317   textureKey->SetHeight(size.GetHeight());
 318 }
 319
 320 void RenderManager::SetTextureFormat(const Render::TextureKey& textureKey, Dali::Pixel::Format pixelFormat)
 321 {
 322   DALI_ASSERT_DEBUG(textureKey && "Trying to set pixel format on empty texture key");
 323   textureKey->SetPixelFormat(pixelFormat);
 324 }
 325
 326 void RenderManager::SetTextureUpdated(const Render::TextureKey& textureKey)
 327 {
 328   DALI_ASSERT_DEBUG(textureKey && "Trying to set updated on empty texture key");
 329   textureKey->SetUpdated(true);
 330
 331   mImpl->updatedTextures.PushBack(textureKey);
 332 }
 333
 334 void RenderManager::SetFilterMode(Render::Sampler* sampler, uint32_t minFilterMode, uint32_t magFilterMode)
 335 {
 336   sampler->SetFilterMode(static_cast<Dali::FilterMode::Type>(minFilterMode),
 337                          static_cast<Dali::FilterMode::Type>(magFilterMode));
 338 }
 339
 340 void RenderManager::SetWrapMode(Render::Sampler* sampler, uint32_t rWrapMode, uint32_t sWrapMode, uint32_t tWrapMode)
 341 {
 342   sampler->SetWrapMode(static_cast<Dali::WrapMode::Type>(rWrapMode),
 343                        static_cast<Dali::WrapMode::Type>(sWrapMode),
 344                        static_cast<Dali::WrapMode::Type>(tWrapMode));
 345 }
 346
 347 void RenderManager::AddFrameBuffer(OwnerPointer<Render::FrameBuffer>& frameBuffer)
 348 {
 349   Render::FrameBuffer* frameBufferPtr = frameBuffer.Release();
 350   mImpl->frameBufferContainer.PushBack(frameBufferPtr);
 351   frameBufferPtr->Initialize(mImpl->graphicsController);
 352 }
 353
 354 void RenderManager::RemoveFrameBuffer(Render::FrameBuffer* frameBuffer)
 355 {
 356   DALI_ASSERT_DEBUG(nullptr != frameBuffer);
 357
 358   // Find the framebuffer, use OrderedSet.Find so we can safely do the erase
 359   auto iter = mImpl->frameBufferContainer.Find(frameBuffer);
 360
 361   if(iter != mImpl->frameBufferContainer.End())
 362   {
 363     frameBuffer->Destroy();
 364     mImpl->frameBufferContainer.Erase(iter); // frameBuffer found; now destroy it
 365   }
 366 }
 367
 368 void RenderManager::InitializeScene(SceneGraph::Scene* scene)
 369 {
 370   scene->Initialize(mImpl->graphicsController, mImpl->depthBufferAvailable, mImpl->stencilBufferAvailable);
 371   mImpl->sceneContainer.push_back(scene);
 372   mImpl->uniformBufferManager->RegisterScene(scene);
 373 }
 374
 375 void RenderManager::UninitializeScene(SceneGraph::Scene* scene)
 376 {
 377   mImpl->uniformBufferManager->UnregisterScene(scene);
 378   auto iter = std::find(mImpl->sceneContainer.begin(), mImpl->sceneContainer.end(), scene);
 379   if(iter != mImpl->sceneContainer.end())
 380   {
 381     mImpl->sceneContainer.erase(iter);
 382   }
 383 }
 384
 385 void RenderManager::SurfaceReplaced(SceneGraph::Scene* scene)
 386 {
 387   scene->Initialize(mImpl->graphicsController, mImpl->depthBufferAvailable, mImpl->stencilBufferAvailable);
 388 }
 389
 390 void RenderManager::AttachColorTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel, uint32_t layer)
 391 {
 392   frameBuffer->AttachColorTexture(texture, mipmapLevel, layer);
 393 }
 394
 395 void RenderManager::AttachDepthTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel)
 396 {
 397   frameBuffer->AttachDepthTexture(texture, mipmapLevel);
 398 }
 399
 400 void RenderManager::AttachDepthStencilTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel)
 401 {
 402   frameBuffer->AttachDepthStencilTexture(texture, mipmapLevel);
 403 }
 404
 405 void RenderManager::SetMultiSamplingLevelToFrameBuffer(Render::FrameBuffer* frameBuffer, uint8_t multiSamplingLevel)
 406 {
 407   frameBuffer->SetMultiSamplingLevel(multiSamplingLevel);
 408 }
 409
 410 void RenderManager::AddVertexBuffer(OwnerPointer<Render::VertexBuffer>& vertexBuffer)
 411 {
 412   mImpl->vertexBufferContainer.PushBack(vertexBuffer.Release());
 413 }
 414
 415 void RenderManager::RemoveVertexBuffer(Render::VertexBuffer* vertexBuffer)
 416 {
 417   mImpl->vertexBufferContainer.EraseObject(vertexBuffer);
 418 }
 419
 420 void RenderManager::SetVertexBufferFormat(Render::VertexBuffer* vertexBuffer, OwnerPointer<Render::VertexBuffer::Format>& format)
 421 {
 422   vertexBuffer->SetFormat(format.Release());
 423 }
 424
 425 void RenderManager::SetVertexBufferData(Render::VertexBuffer* vertexBuffer, OwnerPointer<Vector<uint8_t>>& data, uint32_t size)
 426 {
 427   vertexBuffer->SetData(data.Release(), size);
 428 }
 429
 430 void RenderManager::SetVertexBufferUpdateCallback(Render::VertexBuffer* vertexBuffer, Dali::VertexBufferUpdateCallback* callback)
 431 {
 432   vertexBuffer->SetVertexBufferUpdateCallback(callback);
 433 }
 434
 435 void RenderManager::SetIndexBuffer(Render::Geometry* geometry, Render::Geometry::Uint16ContainerType& indices)
 436 {
 437   geometry->SetIndexBuffer(indices);
 438 }
 439
 440 void RenderManager::SetIndexBuffer(Render::Geometry* geometry, Render::Geometry::Uint32ContainerType& indices)
 441 {
 442   geometry->SetIndexBuffer(indices);
 443 }
 444
 445 void RenderManager::AddGeometry(OwnerPointer<Render::Geometry>& geometry)
 446 {
 447   mImpl->geometryContainer.PushBack(geometry.Release());
 448 }
 449
 450 void RenderManager::RemoveGeometry(Render::Geometry* geometry)
 451 {
 452   mImpl->geometryContainer.EraseObject(geometry);
 453 }
 454
 455 void RenderManager::AttachVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer)
 456 {
 457   geometry->AddVertexBuffer(vertexBuffer);
 458 }
 459
 460 void RenderManager::RemoveVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer)
 461 {
 462   geometry->RemoveVertexBuffer(vertexBuffer);
 463 }
 464
 465 void RenderManager::SetGeometryType(Render::Geometry* geometry, uint32_t geometryType)
 466 {
 467   geometry->SetType(Render::Geometry::Type(geometryType));
 468 }
 469
 470 void RenderManager::AddRenderTracker(Render::RenderTracker* renderTracker)
 471 {
 472   mImpl->AddRenderTracker(renderTracker);
 473 }
 474
 475 void RenderManager::RemoveRenderTracker(Render::RenderTracker* renderTracker)
 476 {
 477   mImpl->RemoveRenderTracker(renderTracker);
 478 }
 479
 480 void RenderManager::PreRender(Integration::RenderStatus& status, bool forceClear)
 481 {
 482   DALI_PRINT_RENDER_START(mImpl->renderBufferIndex);
 483   DALI_LOG_INFO(gLogFilter, Debug::Verbose, "\n\nNewFrame %d\n", mImpl->frameCount);
 484
 485   // Increment the frame count at the beginning of each frame
 486   ++mImpl->frameCount;
 487
 488   // Process messages queued during previous update
 489   mImpl->renderQueue.ProcessMessages(mImpl->renderBufferIndex);
 490
 491   uint32_t totalInstructionCount = 0u;
 492   for(auto& i : mImpl->sceneContainer)
 493   {
 494     totalInstructionCount += i->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 495   }
 496
 497   const bool haveInstructions = totalInstructionCount > 0u;
 498
 499   DALI_LOG_INFO(gLogFilter, Debug::General, "Render: haveInstructions(%s) || mImpl->lastFrameWasRendered(%s) || forceClear(%s)\n", haveInstructions ? "true" : "false", mImpl->lastFrameWasRendered ? "true" : "false", forceClear ? "true" : "false");
 500
 501   // Only render if we have instructions to render, or the last frame was rendered (and therefore a clear is required).
 502   if(haveInstructions || mImpl->lastFrameWasRendered || forceClear)
 503   {
 504     DALI_LOG_INFO(gLogFilter, Debug::General, "Render: Processing\n");
 505
 506     // Upload the geometries
 507     for(auto&& geom : mImpl->geometryContainer)
 508     {
 509       geom->Upload(mImpl->graphicsController);
 510     }
 511   }
 512
 513   // Reset pipeline cache before rendering
 514   mImpl->pipelineCache->PreRender();
 515
 516   // Let we collect reference counts during CACHE_CLEAN_FRAME_COUNT frames.
 517   // TODO : Cache clean logic have some problem now. Just block it until bug resolved
 518   /*
 519   if(mImpl->frameCount % CACHE_CLEAN_FRAME_COUNT == 1)
 520   {
 521     mImpl->programController.ResetReferenceCount();
 522   }
 523   */
 524
 525   mImpl->commandBufferSubmitted = false;
 526 }
 527
 528 void RenderManager::PreRender(Integration::Scene& scene, std::vector<Rect<int>>& damagedRects)
 529 {
 530   if(mImpl->partialUpdateAvailable != Integration::PartialUpdateAvailable::TRUE)
 531   {
 532     return;
 533   }
 534
 535   Internal::Scene&   sceneInternal = GetImplementation(scene);
 536   SceneGraph::Scene* sceneObject   = sceneInternal.GetSceneObject();
 537
 538   if(!sceneObject || sceneObject->IsRenderingSkipped())
 539   {
 540     // We don't need to calculate dirty rects
 541     if(!sceneObject)
 542     {
 543       DALI_LOG_ERROR("Scene was empty handle. Skip pre-rendering\n");
 544     }
 545     else
 546     {
 547       DALI_LOG_RELEASE_INFO("RenderingSkipped set true. Skip pre-rendering\n");
 548     }
 549     return;
 550   }
 551
 552   class DamagedRectsCleaner
 553   {
 554   public:
 555     explicit DamagedRectsCleaner(std::vector<Rect<int>>& damagedRects, Rect<int>& surfaceRect)
 556     : mDamagedRects(damagedRects),
 557       mSurfaceRect(surfaceRect),
 558       mCleanOnReturn(true)
 559     {
 560     }
 561
 562     void SetCleanOnReturn(bool cleanOnReturn)
 563     {
 564       mCleanOnReturn = cleanOnReturn;
 565     }
 566
 567     ~DamagedRectsCleaner()
 568     {
 569       if(mCleanOnReturn)
 570       {
 571         mDamagedRects.clear();
 572         mDamagedRects.push_back(mSurfaceRect);
 573       }
 574     }
 575
 576   private:
 577     std::vector<Rect<int>>& mDamagedRects;
 578     Rect<int>               mSurfaceRect;
 579     bool                    mCleanOnReturn;
 580   };
 581
 582   Rect<int32_t> surfaceRect = sceneObject->GetSurfaceRect();
 583
 584   // Clean collected dirty/damaged rects on exit if 3d layer or 3d node or other conditions.
 585   DamagedRectsCleaner damagedRectCleaner(damagedRects, surfaceRect);
 586   bool                cleanDamagedRect = false;
 587
 588   Scene::ItemsDirtyRectsContainer& itemsDirtyRects = sceneObject->GetItemsDirtyRects();
 589
 590   if(!sceneObject->IsPartialUpdateEnabled())
 591   {
 592     // Clear all dirty rects
 593     // The rects will be added when partial updated is enabled again
 594     itemsDirtyRects.clear();
 595     return;
 596   }
 597
 598   // Mark previous dirty rects in the std::unordered_map.
 599   for(auto& dirtyRectPair : itemsDirtyRects)
 600   {
 601     dirtyRectPair.second.visited = false;
 602   }
 603
 604   uint32_t instructionCount = sceneObject->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 605   for(uint32_t i = 0; i < instructionCount; ++i)
 606   {
 607     RenderInstruction& instruction = sceneObject->GetRenderInstructions().At(mImpl->renderBufferIndex, i);
 608
 609     if(instruction.mFrameBuffer)
 610     {
 611       cleanDamagedRect = true;
 612       continue; // TODO: reset, we don't deal with render tasks with framebuffers (for now)
 613     }
 614
 615     const Camera* camera = instruction.GetCamera();
 616     if(camera && camera->mType == Camera::DEFAULT_TYPE && camera->mTargetPosition == Camera::DEFAULT_TARGET_POSITION)
 617     {
 618       Vector3    position;
 619       Vector3    scale;
 620       Quaternion orientation;
 621       camera->GetWorldMatrix(mImpl->renderBufferIndex).GetTransformComponents(position, orientation, scale);
 622
 623       Vector3 orientationAxis;
 624       Radian  orientationAngle;
 625       orientation.ToAxisAngle(orientationAxis, orientationAngle);
 626
 627       if(position.x > Math::MACHINE_EPSILON_10000 ||
 628          position.y > Math::MACHINE_EPSILON_10000 ||
 629          orientationAxis != Vector3(0.0f, 1.0f, 0.0f) ||
 630          orientationAngle != ANGLE_180 ||
 631          scale != Vector3(1.0f, 1.0f, 1.0f))
 632       {
 633         cleanDamagedRect = true;
 634         continue;
 635       }
 636     }
 637     else
 638     {
 639       cleanDamagedRect = true;
 640       continue;
 641     }
 642
 643     Rect<int32_t> viewportRect;
 644     if(instruction.mIsViewportSet)
 645     {
 646       const int32_t y = (surfaceRect.height - instruction.mViewport.height) - instruction.mViewport.y;
 647       viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
 648       if(viewportRect.IsEmpty() || !viewportRect.IsValid())
 649       {
 650         cleanDamagedRect = true;
 651         continue; // just skip funny use cases for now, empty viewport means it is set somewhere else
 652       }
 653     }
 654     else
 655     {
 656       viewportRect = surfaceRect;
 657     }
 658
 659     const Matrix* viewMatrix       = instruction.GetViewMatrix(mImpl->renderBufferIndex);
 660     const Matrix* projectionMatrix = instruction.GetProjectionMatrix(mImpl->renderBufferIndex);
 661     if(viewMatrix && projectionMatrix)
 662     {
 663       const RenderListContainer::SizeType count = instruction.RenderListCount();
 664       for(RenderListContainer::SizeType index = 0u; index < count; ++index)
 665       {
 666         const RenderList* renderList = instruction.GetRenderList(index);
 667         if(renderList)
 668         {
 669           if(!renderList->IsEmpty())
 670           {
 671             const std::size_t listCount = renderList->Count();
 672             for(uint32_t listIndex = 0u; listIndex < listCount; ++listIndex)
 673             {
 674               RenderItem& item = renderList->GetItem(listIndex);
 675               // If the item does 3D transformation, make full update
 676               if(item.mUpdateArea == Vector4::ZERO)
 677               {
 678                 cleanDamagedRect = true;
 679
 680                 // Save the full rect in the damaged list. We need it when this item is removed
 681                 DirtyRectKey dirtyRectKey(item.mNode, item.mRenderer);
 682                 auto         dirtyRectPos = itemsDirtyRects.find(dirtyRectKey);
 683                 if(dirtyRectPos != itemsDirtyRects.end())
 684                 {
 685                   // Replace the rect
 686                   dirtyRectPos->second.visited = true;
 687                   dirtyRectPos->second.rect    = surfaceRect;
 688                 }
 689                 else
 690                 {
 691                   // Else, just insert the new dirtyrect
 692                   itemsDirtyRects.insert({dirtyRectKey, surfaceRect});
 693                 }
 694                 continue;
 695               }
 696
 697               Rect<int>    rect;
 698               DirtyRectKey dirtyRectKey(item.mNode, item.mRenderer);
 699               // If the item refers to updated node or renderer.
 700               if(item.mIsUpdated ||
 701                  (item.mNode &&
 702                   (item.mNode->Updated() || (item.mRenderer && item.mRenderer->Updated()))))
 703               {
 704                 item.mIsUpdated = false;
 705
 706                 rect = CalculateUpdateArea(item, mImpl->renderBufferIndex, viewportRect);
 707                 if(rect.IsValid() && rect.Intersect(viewportRect) && !rect.IsEmpty())
 708                 {
 709                   AlignDamagedRect(rect);
 710
 711                   // Found valid dirty rect.
 712                   auto dirtyRectPos = itemsDirtyRects.find(dirtyRectKey);
 713                   if(dirtyRectPos != itemsDirtyRects.end())
 714                   {
 715                     Rect<int> currentRect = rect;
 716
 717                     // Same item, merge it with the previous rect
 718                     rect.Merge(dirtyRectPos->second.rect);
 719
 720                     // Replace the rect as current
 721                     dirtyRectPos->second.visited = true;
 722                     dirtyRectPos->second.rect    = currentRect;
 723                   }
 724                   else
 725                   {
 726                     // Else, just insert the new dirtyrect
 727                     itemsDirtyRects.insert({dirtyRectKey, rect});
 728                   }
 729
 730                   damagedRects.push_back(rect);
 731                 }
 732               }
 733               else
 734               {
 735                 // 1. The item is not dirty, the node and renderer referenced by the item are still exist.
 736                 // 2. Mark the related dirty rects as visited so they will not be removed below.
 737                 auto dirtyRectPos = itemsDirtyRects.find(dirtyRectKey);
 738                 if(dirtyRectPos != itemsDirtyRects.end())
 739                 {
 740                   dirtyRectPos->second.visited = true;
 741                 }
 742                 else
 743                 {
 744                   // The item is not in the list for some reason. Add the current rect!
 745                   rect = CalculateUpdateArea(item, mImpl->renderBufferIndex, viewportRect);
 746                   if(rect.IsValid() && rect.Intersect(viewportRect) && !rect.IsEmpty())
 747                   {
 748                     AlignDamagedRect(rect);
 749
 750                     itemsDirtyRects.insert({dirtyRectKey, rect});
 751                   }
 752                   cleanDamagedRect = true; // And make full update at this frame
 753                 }
 754               }
 755             }
 756           }
 757         }
 758       }
 759     }
 760   }
 761
 762   // Check removed nodes or removed renderers dirty rects
 763   // Note, std::unordered_map end iterator is validate if we call erase.
 764   for(auto iter = itemsDirtyRects.cbegin(), iterEnd = itemsDirtyRects.cend(); iter != iterEnd;)
 765   {
 766     if(!iter->second.visited)
 767     {
 768       damagedRects.push_back(iter->second.rect);
 769       iter = itemsDirtyRects.erase(iter);
 770     }
 771     else
 772     {
 773       ++iter;
 774     }
 775   }
 776
 777   if(sceneObject->IsNeededFullUpdate())
 778   {
 779     cleanDamagedRect = true; // And make full update at this frame
 780   }
 781
 782   if(!cleanDamagedRect)
 783   {
 784     damagedRectCleaner.SetCleanOnReturn(false);
 785   }
 786 }
 787
 788 void RenderManager::RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo)
 789 {
 790   SceneGraph::Scene* sceneObject = GetImplementation(scene).GetSceneObject();
 791   if(!sceneObject)
 792   {
 793     return;
 794   }
 795
 796   Rect<int> clippingRect = sceneObject->GetSurfaceRect();
 797   RenderScene(status, scene, renderToFbo, clippingRect);
 798 }
 799
 800 void RenderManager::RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo, Rect<int>& clippingRect)
 801 {
 802   if(mImpl->partialUpdateAvailable == Integration::PartialUpdateAvailable::TRUE && !renderToFbo && clippingRect.IsEmpty())
 803   {
 804     // ClippingRect is empty. Skip rendering
 805     DALI_LOG_DEBUG_INFO("ClippingRect is empty. Skip rendering\n");
 806     return;
 807   }
 808
 809   // Reset main algorithms command buffer
 810   mImpl->renderAlgorithms.ResetCommandBuffer();
 811
 812   auto mainCommandBuffer = mImpl->renderAlgorithms.GetMainCommandBuffer();
 813
 814   Internal::Scene&   sceneInternal = GetImplementation(scene);
 815   SceneGraph::Scene* sceneObject   = sceneInternal.GetSceneObject();
 816   if(!sceneObject)
 817   {
 818     DALI_LOG_ERROR("Scene was empty handle. Skip rendering\n");
 819     return;
 820   }
 821
 822   uint32_t instructionCount = sceneObject->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 823
 824   std::vector<Graphics::RenderTarget*> targetstoPresent;
 825
 826   Rect<int32_t> surfaceRect = sceneObject->GetSurfaceRect();
 827   if(clippingRect == surfaceRect)
 828   {
 829     // Full rendering case
 830     // Make clippingRect empty because we're doing full rendering now if the clippingRect is empty.
 831     // To reduce side effects, keep this logic now.
 832     clippingRect = Rect<int>();
 833   }
 834
 835   // Prefetch programs before we start rendering so reflection is
 836   // ready, and we can pull exact size of UBO needed (no need to resize during drawing)
 837   auto totalSizeCPU = 0u;
 838   auto totalSizeGPU = 0u;
 839
 840   for(uint32_t i = 0; i < instructionCount; ++i)
 841   {
 842     RenderInstruction& instruction = sceneObject->GetRenderInstructions().At(mImpl->renderBufferIndex, i);
 843
 844     if((instruction.mFrameBuffer != nullptr && renderToFbo) ||
 845        (instruction.mFrameBuffer == nullptr && !renderToFbo))
 846     {
 847       for(auto j = 0u; j < instruction.RenderListCount(); ++j)
 848       {
 849         const auto& renderList = instruction.GetRenderList(j);
 850         for(auto k = 0u; k < renderList->Count(); ++k)
 851         {
 852           auto& item = renderList->GetItem(k);
 853           if(item.mRenderer && item.mRenderer->NeedsProgram())
 854           {
 855             // Prepare and store used programs for further processing
 856             auto program = item.mRenderer->PrepareProgram(instruction);
 857             if(program)
 858             {
 859               const auto& memoryRequirements = program->GetUniformBlocksMemoryRequirements();
 860
 861               totalSizeCPU += memoryRequirements.totalCpuSizeRequired;
 862               totalSizeGPU += memoryRequirements.totalGpuSizeRequired;
 863             }
 864           }
 865         }
 866       }
 867     }
 868   }
 869
 870   DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Render scene (%s), CPU:%d GPU:%d\n", renderToFbo ? "Offscreen" : "Onscreen", totalSizeCPU, totalSizeGPU);
 871
 872   auto& uboManager = mImpl->uniformBufferManager;
 873
 874   uboManager->SetCurrentSceneRenderInfo(sceneObject, renderToFbo);
 875   uboManager->Rollback(sceneObject, renderToFbo);
 876
 877   // Respec UBOs for this frame (orphan buffers or double buffer in the GPU)
 878   if(instructionCount)
 879   {
 880     uboManager->GetUniformBufferForScene(sceneObject, renderToFbo, true)->ReSpecify(totalSizeCPU);
 881     uboManager->GetUniformBufferForScene(sceneObject, renderToFbo, false)->ReSpecify(totalSizeGPU);
 882   }
 883
 884 #if defined(DEBUG_ENABLED)
 885   auto uniformBuffer1 = uboManager->GetUniformBufferForScene(sceneObject, renderToFbo, true);
 886   auto uniformBuffer2 = uboManager->GetUniformBufferForScene(sceneObject, renderToFbo, false);
 887   if(uniformBuffer1)
 888   {
 889     DALI_LOG_INFO(gLogFilter, Debug::Verbose, "CPU buffer: Offset(%d), Cap(%d)\n", uniformBuffer1->GetCurrentOffset(), uniformBuffer1->GetCurrentCapacity());
 890   }
 891   else
 892   {
 893     DALI_LOG_INFO(gLogFilter, Debug::Verbose, "CPU buffer: nil\n");
 894   }
 895   if(uniformBuffer2)
 896   {
 897     DALI_LOG_INFO(gLogFilter, Debug::Verbose, "GPU buffer: Offset(%d), Cap(%d)\n", uniformBuffer2->GetCurrentOffset(), uniformBuffer2->GetCurrentCapacity());
 898   }
 899   else
 900   {
 901     DALI_LOG_INFO(gLogFilter, Debug::Verbose, "GPU buffer: nil\n");
 902   }
 903 #endif
 904
 905   for(uint32_t i = 0; i < instructionCount; ++i)
 906   {
 907     RenderInstruction& instruction = sceneObject->GetRenderInstructions().At(mImpl->renderBufferIndex, i);
 908
 909     if((renderToFbo && !instruction.mFrameBuffer) || (!renderToFbo && instruction.mFrameBuffer))
 910     {
 911       continue; // skip
 912     }
 913
 914     // Mark that we will require a post-render step to be performed (includes swap-buffers).
 915     status.SetNeedsPostRender(true);
 916
 917     Rect<int32_t> viewportRect;
 918
 919     int32_t surfaceOrientation = sceneObject->GetSurfaceOrientation() + sceneObject->GetScreenOrientation();
 920     if(surfaceOrientation >= 360)
 921     {
 922       surfaceOrientation -= 360;
 923     }
 924
 925     // @todo Should these be part of scene?
 926     Integration::DepthBufferAvailable   depthBufferAvailable   = mImpl->depthBufferAvailable;
 927     Integration::StencilBufferAvailable stencilBufferAvailable = mImpl->stencilBufferAvailable;
 928
 929     Graphics::RenderTarget*           currentRenderTarget = nullptr;
 930     Graphics::RenderPass*             currentRenderPass   = nullptr;
 931     std::vector<Graphics::ClearValue> currentClearValues{};
 932
 933     if(instruction.mFrameBuffer)
 934     {
 935       // Ensure graphics framebuffer is created, bind attachments and create render passes
 936       // Only happens once per framebuffer. If the create fails, e.g. no attachments yet,
 937       // then don't render to this framebuffer.
 938       if(!instruction.mFrameBuffer->GetGraphicsObject())
 939       {
 940         const bool created = instruction.mFrameBuffer->CreateGraphicsObjects();
 941         if(!created)
 942         {
 943           continue;
 944         }
 945       }
 946
 947       auto& clearValues = instruction.mFrameBuffer->GetGraphicsRenderPassClearValues();
 948
 949       // Set the clear color for first color attachment
 950       if(instruction.mIsClearColorSet && !clearValues.empty())
 951       {
 952         clearValues[0].color = {
 953           instruction.mClearColor.r,
 954           instruction.mClearColor.g,
 955           instruction.mClearColor.b,
 956           instruction.mClearColor.a};
 957       }
 958
 959       currentClearValues = clearValues;
 960
 961       auto loadOp = instruction.mIsClearColorSet ? Graphics::AttachmentLoadOp::CLEAR : Graphics::AttachmentLoadOp::LOAD;
 962
 963       // offscreen buffer
 964       currentRenderTarget = instruction.mFrameBuffer->GetGraphicsRenderTarget();
 965       currentRenderPass   = instruction.mFrameBuffer->GetGraphicsRenderPass(loadOp, Graphics::AttachmentStoreOp::STORE);
 966     }
 967     else // no framebuffer
 968     {
 969       // surface
 970       auto& clearValues = sceneObject->GetGraphicsRenderPassClearValues();
 971
 972       if(instruction.mIsClearColorSet)
 973       {
 974         clearValues[0].color = {
 975           instruction.mClearColor.r,
 976           instruction.mClearColor.g,
 977           instruction.mClearColor.b,
 978           instruction.mClearColor.a};
 979       }
 980
 981       currentClearValues = clearValues;
 982
 983       // @todo SceneObject should already have the depth clear / stencil clear in the clearValues array.
 984       // if the window has a depth/stencil buffer.
 985       if((depthBufferAvailable == Integration::DepthBufferAvailable::TRUE ||
 986           stencilBufferAvailable == Integration::StencilBufferAvailable::TRUE) &&
 987          (currentClearValues.size() <= 1))
 988       {
 989         currentClearValues.emplace_back();
 990         currentClearValues.back().depthStencil.depth   = 0;
 991         currentClearValues.back().depthStencil.stencil = 0;
 992       }
 993
 994       auto loadOp = instruction.mIsClearColorSet ? Graphics::AttachmentLoadOp::CLEAR : Graphics::AttachmentLoadOp::LOAD;
 995
 996       currentRenderTarget = sceneObject->GetSurfaceRenderTarget();
 997       currentRenderPass   = sceneObject->GetGraphicsRenderPass(loadOp, Graphics::AttachmentStoreOp::STORE);
 998     }
 999
1000     targetstoPresent.emplace_back(currentRenderTarget);
1001
1002     if(!instruction.mIgnoreRenderToFbo && (instruction.mFrameBuffer != nullptr))
1003     {
1004       // Offscreen buffer rendering
1005       if(instruction.mIsViewportSet)
1006       {
1007         // For Viewport the lower-left corner is (0,0)
1008         const int32_t y = (instruction.mFrameBuffer->GetHeight() - instruction.mViewport.height) - instruction.mViewport.y;
1009         viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
1010       }
1011       else
1012       {
1013         viewportRect.Set(0, 0, instruction.mFrameBuffer->GetWidth(), instruction.mFrameBuffer->GetHeight());
1014       }
1015       surfaceOrientation = 0;
1016     }
1017     else // No Offscreen frame buffer rendering
1018     {
1019       // Check whether a viewport is specified, otherwise the full surface size is used
1020       if(instruction.mIsViewportSet)
1021       {
1022         // For Viewport the lower-left corner is (0,0)
1023         const int32_t y = (surfaceRect.height - instruction.mViewport.height) - instruction.mViewport.y;
1024         viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
1025       }
1026       else
1027       {
1028         viewportRect = surfaceRect;
1029       }
1030     }
1031
1032     // Set surface orientation
1033     // @todo Inform graphics impl by another route.
1034     // was: mImpl->currentContext->SetSurfaceOrientation(surfaceOrientation);
1035
1036     /*** Clear region of framebuffer or surface before drawing ***/
1037     bool clearFullFrameRect = (surfaceRect == viewportRect);
1038     if(instruction.mFrameBuffer != nullptr)
1039     {
1040       Viewport frameRect(0, 0, instruction.mFrameBuffer->GetWidth(), instruction.mFrameBuffer->GetHeight());
1041       clearFullFrameRect = (frameRect == viewportRect);
1042     }
1043
1044     if(!clippingRect.IsEmpty())
1045     {
1046       if(!clippingRect.Intersect(viewportRect))
1047       {
1048         DALI_LOG_ERROR("Invalid clipping rect %d %d %d %d\n", clippingRect.x, clippingRect.y, clippingRect.width, clippingRect.height);
1049         clippingRect = Rect<int>();
1050       }
1051       clearFullFrameRect = false;
1052     }
1053
1054     Graphics::Rect2D scissorArea{viewportRect.x, viewportRect.y, uint32_t(viewportRect.width), uint32_t(viewportRect.height)};
1055     if(instruction.mIsClearColorSet)
1056     {
1057       if(!clearFullFrameRect)
1058       {
1059         if(!clippingRect.IsEmpty())
1060         {
1061           scissorArea = {clippingRect.x, clippingRect.y, uint32_t(clippingRect.width), uint32_t(clippingRect.height)};
1062         }
1063       }
1064     }
1065
1066     // Scissor's value should be set based on the default system coordinates.
1067     // When the surface is rotated, the input values already were set with the rotated angle.
1068     // So, re-calculation is needed.
1069     scissorArea = RecalculateScissorArea(scissorArea, surfaceOrientation, surfaceRect);
1070
1071     // Begin render pass
1072     mainCommandBuffer->BeginRenderPass(
1073       currentRenderPass,
1074       currentRenderTarget,
1075       scissorArea,
1076       currentClearValues);
1077
1078     mainCommandBuffer->SetViewport({float(viewportRect.x),
1079                                     float(viewportRect.y),
1080                                     float(viewportRect.width),
1081                                     float(viewportRect.height)});
1082
1083     mImpl->renderAlgorithms.ProcessRenderInstruction(
1084       instruction,
1085       mImpl->renderBufferIndex,
1086       depthBufferAvailable,
1087       stencilBufferAvailable,
1088       viewportRect,
1089       clippingRect,
1090       surfaceOrientation,
1091       Uint16Pair(surfaceRect.width, surfaceRect.height));
1092
1093     Graphics::SyncObject* syncObject{nullptr};
1094     // If the render instruction has an associated render tracker (owned separately)
1095     // and framebuffer, create a one shot sync object, and use it to determine when
1096     // the render pass has finished executing on GPU.
1097     if(instruction.mRenderTracker && instruction.mFrameBuffer)
1098     {
1099       syncObject                 = instruction.mRenderTracker->CreateSyncObject(mImpl->graphicsController);
1100       instruction.mRenderTracker = nullptr;
1101     }
1102     mainCommandBuffer->EndRenderPass(syncObject);
1103   }
1104
1105   // Flush UBOs
1106   mImpl->uniformBufferManager->Flush(sceneObject, renderToFbo);
1107   mImpl->renderAlgorithms.SubmitCommandBuffer();
1108   mImpl->commandBufferSubmitted = true;
1109
1110   std::sort(targetstoPresent.begin(), targetstoPresent.end());
1111
1112   Graphics::RenderTarget* rt = nullptr;
1113   for(auto& target : targetstoPresent)
1114   {
1115     if(target != rt)
1116     {
1117       mImpl->graphicsController.PresentRenderTarget(target);
1118       rt = target;
1119     }
1120   }
1121 }
1122
1123 void RenderManager::PostRender()
1124 {
1125   if(!mImpl->commandBufferSubmitted)
1126   {
1127     // Rendering is skipped but there may be pending tasks. Flush them.
1128     Graphics::SubmitInfo submitInfo;
1129     submitInfo.cmdBuffer.clear(); // Only flush
1130     submitInfo.flags = 0 | Graphics::SubmitFlagBits::FLUSH;
1131     mImpl->graphicsController.SubmitCommandBuffers(submitInfo);
1132
1133     mImpl->commandBufferSubmitted = true;
1134   }
1135
1136   // Notify RenderGeometries that rendering has finished
1137   for(auto&& iter : mImpl->geometryContainer)
1138   {
1139     iter->OnRenderFinished();
1140   }
1141
1142   // Notify updated RenderTexture that rendering has finished
1143   for(auto&& iter : mImpl->updatedTextures)
1144   {
1145     iter->OnRenderFinished();
1146   }
1147   mImpl->updatedTextures.Clear();
1148
1149   // Remove discarded textures after OnRenderFinished called
1150   mImpl->textureDiscardQueue.Clear();
1151
1152   mImpl->UpdateTrackers();
1153
1154   uint32_t count = 0u;
1155   for(auto& scene : mImpl->sceneContainer)
1156   {
1157     count += scene->GetRenderInstructions().Count(mImpl->renderBufferIndex);
1158   }
1159
1160   // Remove unused shader and programs during CACHE_CLEAN_FRAME_COUNT frames.
1161   // TODO : Cache clean logic have some problem now. Just block it until bug resolved
1162   /*
1163   if(mImpl->frameCount % CACHE_CLEAN_FRAME_COUNT == 0)
1164   {
1165     mImpl->programController.ClearUnusedCache();
1166   }
1167   */
1168
1169   const bool haveInstructions = count > 0u;
1170
1171   // If this frame was rendered due to instructions existing, we mark this so we know to clear the next frame.
1172   mImpl->lastFrameWasRendered = haveInstructions;
1173
1174   /**
1175    * The rendering has finished; swap to the next buffer.
1176    * Ideally the update has just finished using this buffer; otherwise the render thread
1177    * should block until the update has finished.
1178    */
1179   mImpl->renderBufferIndex = (0 != mImpl->renderBufferIndex) ? 0 : 1;
1180
1181   DALI_PRINT_RENDER_END();
1182 }
1183
1184 } // namespace SceneGraph
1185
1186 } // namespace Internal
1187
1188 } // namespace Dali