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

   1 /*
   2  * Copyright (c) 2021 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/devel-api/threading/thread-pool.h>
  26 #include <dali/integration-api/core.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/render-tasks/scene-graph-camera.h>
  32
  33 #include <dali/internal/render/common/render-algorithms.h>
  34 #include <dali/internal/render/common/render-debug.h>
  35 #include <dali/internal/render/common/render-instruction.h>
  36 #include <dali/internal/render/common/render-tracker.h>
  37 #include <dali/internal/render/queue/render-queue.h>
  38 #include <dali/internal/render/renderers/pipeline-cache.h>
  39 #include <dali/internal/render/renderers/render-frame-buffer.h>
  40 #include <dali/internal/render/renderers/render-texture.h>
  41 #include <dali/internal/render/renderers/shader-cache.h>
  42 #include <dali/internal/render/renderers/uniform-buffer-manager.h>
  43 #include <dali/internal/render/renderers/uniform-buffer-view-pool.h>
  44 #include <dali/internal/render/shaders/program-controller.h>
  45
  46 #include <memory>
  47
  48 namespace Dali
  49 {
  50 namespace Internal
  51 {
  52 namespace SceneGraph
  53 {
  54 #if defined(DEBUG_ENABLED)
  55 namespace
  56 {
  57 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_RENDER_MANAGER");
  58 } // unnamed namespace
  59 #endif
  60
  61 namespace
  62 {
  63 inline Graphics::Rect2D RecalculateScissorArea(Graphics::Rect2D scissorArea, int orientation, Rect<int32_t> viewportRect)
  64 {
  65   Graphics::Rect2D newScissorArea;
  66
  67   if(orientation == 90)
  68   {
  69     newScissorArea.x      = viewportRect.height - (scissorArea.y + scissorArea.height);
  70     newScissorArea.y      = scissorArea.x;
  71     newScissorArea.width  = scissorArea.height;
  72     newScissorArea.height = scissorArea.width;
  73   }
  74   else if(orientation == 180)
  75   {
  76     newScissorArea.x      = viewportRect.width - (scissorArea.x + scissorArea.width);
  77     newScissorArea.y      = viewportRect.height - (scissorArea.y + scissorArea.height);
  78     newScissorArea.width  = scissorArea.width;
  79     newScissorArea.height = scissorArea.height;
  80   }
  81   else if(orientation == 270)
  82   {
  83     newScissorArea.x      = scissorArea.y;
  84     newScissorArea.y      = viewportRect.width - (scissorArea.x + scissorArea.width);
  85     newScissorArea.width  = scissorArea.height;
  86     newScissorArea.height = scissorArea.width;
  87   }
  88   else
  89   {
  90     newScissorArea.x      = scissorArea.x;
  91     newScissorArea.y      = scissorArea.y;
  92     newScissorArea.width  = scissorArea.width;
  93     newScissorArea.height = scissorArea.height;
  94   }
  95   return newScissorArea;
  96 }
  97 } // namespace
  98 /**
  99  * Structure to contain internal data
 100  */
 101 struct RenderManager::Impl
 102 {
 103   Impl(Graphics::Controller&               graphicsController,
 104        Integration::DepthBufferAvailable   depthBufferAvailableParam,
 105        Integration::StencilBufferAvailable stencilBufferAvailableParam,
 106        Integration::PartialUpdateAvailable partialUpdateAvailableParam)
 107   : graphicsController(graphicsController),
 108     renderQueue(),
 109     renderAlgorithms(graphicsController),
 110     frameCount(0u),
 111     renderBufferIndex(SceneGraphBuffers::INITIAL_UPDATE_BUFFER_INDEX),
 112     rendererContainer(),
 113     samplerContainer(),
 114     textureContainer(),
 115     frameBufferContainer(),
 116     lastFrameWasRendered(false),
 117     programController(graphicsController),
 118     shaderCache(graphicsController),
 119     depthBufferAvailable(depthBufferAvailableParam),
 120     stencilBufferAvailable(stencilBufferAvailableParam),
 121     partialUpdateAvailable(partialUpdateAvailableParam)
 122   {
 123     // Create thread pool with just one thread ( there may be a need to create more threads in the future ).
 124     threadPool = std::make_unique<Dali::ThreadPool>();
 125     threadPool->Initialize(1u);
 126
 127     uniformBufferManager = std::make_unique<Render::UniformBufferManager>(&graphicsController);
 128     pipelineCache        = std::make_unique<Render::PipelineCache>(graphicsController);
 129   }
 130
 131   ~Impl()
 132   {
 133     threadPool.reset(nullptr); // reset now to maintain correct destruction order
 134   }
 135
 136   void AddRenderTracker(Render::RenderTracker* renderTracker)
 137   {
 138     DALI_ASSERT_DEBUG(renderTracker != nullptr);
 139     mRenderTrackers.PushBack(renderTracker);
 140   }
 141
 142   void RemoveRenderTracker(Render::RenderTracker* renderTracker)
 143   {
 144     mRenderTrackers.EraseObject(renderTracker);
 145   }
 146
 147   void UpdateTrackers()
 148   {
 149     for(auto&& iter : mRenderTrackers)
 150     {
 151       iter->PollSyncObject();
 152     }
 153   }
 154
 155   // the order is important for destruction,
 156   Graphics::Controller& graphicsController;
 157   RenderQueue           renderQueue; ///< A message queue for receiving messages from the update-thread.
 158
 159   std::vector<SceneGraph::Scene*> sceneContainer; ///< List of pointers to the scene graph objects of the scenes
 160
 161   Render::RenderAlgorithms renderAlgorithms; ///< The RenderAlgorithms object is used to action the renders required by a RenderInstruction
 162
 163   uint32_t    frameCount;        ///< The current frame count
 164   BufferIndex renderBufferIndex; ///< The index of the buffer to read from; this is opposite of the "update" buffer
 165
 166   OwnerContainer<Render::Renderer*>     rendererContainer;     ///< List of owned renderers
 167   OwnerContainer<Render::Sampler*>      samplerContainer;      ///< List of owned samplers
 168   OwnerContainer<Render::Texture*>      textureContainer;      ///< List of owned textures
 169   OwnerContainer<Render::FrameBuffer*>  frameBufferContainer;  ///< List of owned framebuffers
 170   OwnerContainer<Render::VertexBuffer*> vertexBufferContainer; ///< List of owned vertex buffers
 171   OwnerContainer<Render::Geometry*>     geometryContainer;     ///< List of owned Geometries
 172
 173   bool lastFrameWasRendered; ///< Keeps track of the last frame being rendered due to having render instructions
 174
 175   OwnerContainer<Render::RenderTracker*> mRenderTrackers; ///< List of render trackers
 176
 177   ProgramController   programController; ///< Owner of the programs
 178   Render::ShaderCache shaderCache;       ///< The cache for the graphics shaders
 179
 180   std::unique_ptr<Render::UniformBufferManager> uniformBufferManager; ///< The uniform buffer manager
 181   std::unique_ptr<Render::PipelineCache>        pipelineCache;
 182
 183   Integration::DepthBufferAvailable   depthBufferAvailable;   ///< Whether the depth buffer is available
 184   Integration::StencilBufferAvailable stencilBufferAvailable; ///< Whether the stencil buffer is available
 185   Integration::PartialUpdateAvailable partialUpdateAvailable; ///< Whether the partial update is available
 186
 187   std::unique_ptr<Dali::ThreadPool> threadPool;            ///< The thread pool
 188   Vector<Graphics::Texture*>        boundTextures;         ///< The textures bound for rendering
 189   Vector<Graphics::Texture*>        textureDependencyList; ///< The dependency list of bound textures
 190 };
 191
 192 RenderManager* RenderManager::New(Graphics::Controller&               graphicsController,
 193                                   Integration::DepthBufferAvailable   depthBufferAvailable,
 194                                   Integration::StencilBufferAvailable stencilBufferAvailable,
 195                                   Integration::PartialUpdateAvailable partialUpdateAvailable)
 196 {
 197   auto* manager  = new RenderManager;
 198   manager->mImpl = new Impl(graphicsController,
 199                             depthBufferAvailable,
 200                             stencilBufferAvailable,
 201                             partialUpdateAvailable);
 202   return manager;
 203 }
 204
 205 RenderManager::RenderManager()
 206 : mImpl(nullptr)
 207 {
 208 }
 209
 210 RenderManager::~RenderManager()
 211 {
 212   delete mImpl;
 213 }
 214
 215 RenderQueue& RenderManager::GetRenderQueue()
 216 {
 217   return mImpl->renderQueue;
 218 }
 219
 220 void RenderManager::SetShaderSaver(ShaderSaver& upstream)
 221 {
 222 }
 223
 224 void RenderManager::AddRenderer(OwnerPointer<Render::Renderer>& renderer)
 225 {
 226   // Initialize the renderer as we are now in render thread
 227   renderer->Initialize(mImpl->graphicsController, mImpl->programController, mImpl->shaderCache, *(mImpl->uniformBufferManager.get()), *(mImpl->pipelineCache.get()));
 228
 229   mImpl->rendererContainer.PushBack(renderer.Release());
 230 }
 231
 232 void RenderManager::RemoveRenderer(Render::Renderer* renderer)
 233 {
 234   mImpl->rendererContainer.EraseObject(renderer);
 235 }
 236
 237 void RenderManager::AddSampler(OwnerPointer<Render::Sampler>& sampler)
 238 {
 239   sampler->Initialize(mImpl->graphicsController);
 240   mImpl->samplerContainer.PushBack(sampler.Release());
 241 }
 242
 243 void RenderManager::RemoveSampler(Render::Sampler* sampler)
 244 {
 245   mImpl->samplerContainer.EraseObject(sampler);
 246 }
 247
 248 void RenderManager::AddTexture(OwnerPointer<Render::Texture>& texture)
 249 {
 250   texture->Initialize(mImpl->graphicsController);
 251   mImpl->textureContainer.PushBack(texture.Release());
 252 }
 253
 254 void RenderManager::RemoveTexture(Render::Texture* texture)
 255 {
 256   DALI_ASSERT_DEBUG(NULL != texture);
 257
 258   // Find the texture, use reference to pointer so we can do the erase safely
 259   for(auto&& iter : mImpl->textureContainer)
 260   {
 261     if(iter == texture)
 262     {
 263       texture->Destroy();
 264       mImpl->textureContainer.Erase(&iter); // Texture found; now destroy it
 265       return;
 266     }
 267   }
 268 }
 269
 270 void RenderManager::UploadTexture(Render::Texture* texture, PixelDataPtr pixelData, const Texture::UploadParams& params)
 271 {
 272   texture->Upload(pixelData, params);
 273 }
 274
 275 void RenderManager::GenerateMipmaps(Render::Texture* texture)
 276 {
 277   texture->GenerateMipmaps();
 278 }
 279
 280 void RenderManager::SetFilterMode(Render::Sampler* sampler, uint32_t minFilterMode, uint32_t magFilterMode)
 281 {
 282   sampler->SetFilterMode(static_cast<Dali::FilterMode::Type>(minFilterMode),
 283                          static_cast<Dali::FilterMode::Type>(magFilterMode));
 284 }
 285
 286 void RenderManager::SetWrapMode(Render::Sampler* sampler, uint32_t rWrapMode, uint32_t sWrapMode, uint32_t tWrapMode)
 287 {
 288   sampler->SetWrapMode(static_cast<Dali::WrapMode::Type>(rWrapMode),
 289                        static_cast<Dali::WrapMode::Type>(sWrapMode),
 290                        static_cast<Dali::WrapMode::Type>(tWrapMode));
 291 }
 292
 293 void RenderManager::AddFrameBuffer(OwnerPointer<Render::FrameBuffer>& frameBuffer)
 294 {
 295   Render::FrameBuffer* frameBufferPtr = frameBuffer.Release();
 296   mImpl->frameBufferContainer.PushBack(frameBufferPtr);
 297   frameBufferPtr->Initialize(mImpl->graphicsController);
 298 }
 299
 300 void RenderManager::RemoveFrameBuffer(Render::FrameBuffer* frameBuffer)
 301 {
 302   DALI_ASSERT_DEBUG(nullptr != frameBuffer);
 303
 304   // Find the sampler, use reference so we can safely do the erase
 305   for(auto&& iter : mImpl->frameBufferContainer)
 306   {
 307     if(iter == frameBuffer)
 308     {
 309       frameBuffer->Destroy();
 310       mImpl->frameBufferContainer.Erase(&iter); // frameBuffer found; now destroy it
 311
 312       break;
 313     }
 314   }
 315 }
 316
 317 void RenderManager::InitializeScene(SceneGraph::Scene* scene)
 318 {
 319   scene->Initialize(mImpl->graphicsController, mImpl->depthBufferAvailable, mImpl->stencilBufferAvailable);
 320   mImpl->sceneContainer.push_back(scene);
 321 }
 322
 323 void RenderManager::UninitializeScene(SceneGraph::Scene* scene)
 324 {
 325   auto iter = std::find(mImpl->sceneContainer.begin(), mImpl->sceneContainer.end(), scene);
 326   if(iter != mImpl->sceneContainer.end())
 327   {
 328     mImpl->sceneContainer.erase(iter);
 329   }
 330 }
 331
 332 void RenderManager::SurfaceReplaced(SceneGraph::Scene* scene)
 333 {
 334   scene->Initialize(mImpl->graphicsController, mImpl->depthBufferAvailable, mImpl->stencilBufferAvailable);
 335 }
 336
 337 void RenderManager::AttachColorTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel, uint32_t layer)
 338 {
 339   frameBuffer->AttachColorTexture(texture, mipmapLevel, layer);
 340 }
 341
 342 void RenderManager::AttachDepthTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel)
 343 {
 344   frameBuffer->AttachDepthTexture(texture, mipmapLevel);
 345 }
 346
 347 void RenderManager::AttachDepthStencilTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel)
 348 {
 349   frameBuffer->AttachDepthStencilTexture(texture, mipmapLevel);
 350 }
 351
 352 void RenderManager::AddVertexBuffer(OwnerPointer<Render::VertexBuffer>& vertexBuffer)
 353 {
 354   mImpl->vertexBufferContainer.PushBack(vertexBuffer.Release());
 355 }
 356
 357 void RenderManager::RemoveVertexBuffer(Render::VertexBuffer* vertexBuffer)
 358 {
 359   mImpl->vertexBufferContainer.EraseObject(vertexBuffer);
 360 }
 361
 362 void RenderManager::SetVertexBufferFormat(Render::VertexBuffer* vertexBuffer, OwnerPointer<Render::VertexBuffer::Format>& format)
 363 {
 364   vertexBuffer->SetFormat(format.Release());
 365 }
 366
 367 void RenderManager::SetVertexBufferData(Render::VertexBuffer* vertexBuffer, OwnerPointer<Vector<uint8_t>>& data, uint32_t size)
 368 {
 369   vertexBuffer->SetData(data.Release(), size);
 370 }
 371
 372 void RenderManager::SetIndexBuffer(Render::Geometry* geometry, Dali::Vector<uint16_t>& indices)
 373 {
 374   geometry->SetIndexBuffer(indices);
 375 }
 376
 377 void RenderManager::AddGeometry(OwnerPointer<Render::Geometry>& geometry)
 378 {
 379   mImpl->geometryContainer.PushBack(geometry.Release());
 380 }
 381
 382 void RenderManager::RemoveGeometry(Render::Geometry* geometry)
 383 {
 384   auto it = std::find_if(mImpl->geometryContainer.begin(), mImpl->geometryContainer.end(), [geometry](auto& item) {
 385     return geometry == item;
 386   });
 387
 388   if(it != mImpl->geometryContainer.end())
 389   {
 390     mImpl->geometryContainer.Erase(it);
 391   }
 392 }
 393
 394 void RenderManager::AttachVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer)
 395 {
 396   DALI_ASSERT_DEBUG(nullptr != geometry);
 397
 398   // Find the geometry
 399   for(auto&& iter : mImpl->geometryContainer)
 400   {
 401     if(iter == geometry)
 402     {
 403       iter->AddVertexBuffer(vertexBuffer);
 404       break;
 405     }
 406   }
 407 }
 408
 409 void RenderManager::RemoveVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer)
 410 {
 411   DALI_ASSERT_DEBUG(nullptr != geometry);
 412
 413   // Find the geometry
 414   for(auto&& iter : mImpl->geometryContainer)
 415   {
 416     if(iter == geometry)
 417     {
 418       iter->RemoveVertexBuffer(vertexBuffer);
 419       break;
 420     }
 421   }
 422 }
 423
 424 void RenderManager::SetGeometryType(Render::Geometry* geometry, uint32_t geometryType)
 425 {
 426   geometry->SetType(Render::Geometry::Type(geometryType));
 427 }
 428
 429 void RenderManager::AddRenderTracker(Render::RenderTracker* renderTracker)
 430 {
 431   mImpl->AddRenderTracker(renderTracker);
 432 }
 433
 434 void RenderManager::RemoveRenderTracker(Render::RenderTracker* renderTracker)
 435 {
 436   mImpl->RemoveRenderTracker(renderTracker);
 437 }
 438
 439 void RenderManager::PreRender(Integration::RenderStatus& status, bool forceClear, bool uploadOnly)
 440 {
 441   DALI_PRINT_RENDER_START(mImpl->renderBufferIndex);
 442
 443   // Rollback
 444   mImpl->uniformBufferManager->GetUniformBufferViewPool(mImpl->renderBufferIndex)->Rollback();
 445
 446   // Increment the frame count at the beginning of each frame
 447   ++mImpl->frameCount;
 448
 449   // Process messages queued during previous update
 450   mImpl->renderQueue.ProcessMessages(mImpl->renderBufferIndex);
 451
 452   uint32_t count = 0u;
 453   for(auto& i : mImpl->sceneContainer)
 454   {
 455     count += i->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 456   }
 457
 458   const bool haveInstructions = count > 0u;
 459
 460   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");
 461
 462   // Only render if we have instructions to render, or the last frame was rendered (and therefore a clear is required).
 463   if(haveInstructions || mImpl->lastFrameWasRendered || forceClear)
 464   {
 465     DALI_LOG_INFO(gLogFilter, Debug::General, "Render: Processing\n");
 466
 467     // Upload the geometries
 468     for(auto&& geom : mImpl->geometryContainer)
 469     {
 470       geom->Upload(mImpl->graphicsController);
 471     }
 472   }
 473 }
 474
 475 void RenderManager::PreRender(Integration::Scene& scene, std::vector<Rect<int>>& damagedRects)
 476 {
 477   if(mImpl->partialUpdateAvailable != Integration::PartialUpdateAvailable::TRUE)
 478   {
 479     return;
 480   }
 481
 482   Internal::Scene&   sceneInternal = GetImplementation(scene);
 483   SceneGraph::Scene* sceneObject   = sceneInternal.GetSceneObject();
 484
 485   if(sceneObject->IsRenderingSkipped())
 486   {
 487     // We don't need to calculate dirty rects
 488     return;
 489   }
 490
 491   class DamagedRectsCleaner
 492   {
 493   public:
 494     explicit DamagedRectsCleaner(std::vector<Rect<int>>& damagedRects)
 495     : mDamagedRects(damagedRects),
 496       mCleanOnReturn(true)
 497     {
 498     }
 499
 500     void SetCleanOnReturn(bool cleanOnReturn)
 501     {
 502       mCleanOnReturn = cleanOnReturn;
 503     }
 504
 505     ~DamagedRectsCleaner()
 506     {
 507       if(mCleanOnReturn)
 508       {
 509         mDamagedRects.clear();
 510       }
 511     }
 512
 513   private:
 514     std::vector<Rect<int>>& mDamagedRects;
 515     bool                    mCleanOnReturn;
 516   };
 517
 518   Rect<int32_t> surfaceRect = sceneObject->GetSurfaceRect();
 519
 520   // Clean collected dirty/damaged rects on exit if 3d layer or 3d node or other conditions.
 521   DamagedRectsCleaner damagedRectCleaner(damagedRects);
 522
 523   // Mark previous dirty rects in the sorted array. The array is already sorted by node and renderer, frame number.
 524   // so you don't need to sort: std::stable_sort(itemsDirtyRects.begin(), itemsDirtyRects.end());
 525   std::vector<DirtyRect>& itemsDirtyRects = sceneInternal.GetItemsDirtyRects();
 526   for(DirtyRect& dirtyRect : itemsDirtyRects)
 527   {
 528     dirtyRect.visited = false;
 529   }
 530
 531   uint32_t instructionCount = sceneObject->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 532   for(uint32_t i = 0; i < instructionCount; ++i)
 533   {
 534     RenderInstruction& instruction = sceneObject->GetRenderInstructions().At(mImpl->renderBufferIndex, i);
 535
 536     if(instruction.mFrameBuffer)
 537     {
 538       return; // TODO: reset, we don't deal with render tasks with framebuffers (for now)
 539     }
 540
 541     const Camera* camera = instruction.GetCamera();
 542     if(camera->mType == Camera::DEFAULT_TYPE && camera->mTargetPosition == Camera::DEFAULT_TARGET_POSITION)
 543     {
 544       const Node* node = instruction.GetCamera()->GetNode();
 545       if(node)
 546       {
 547         Vector3    position;
 548         Vector3    scale;
 549         Quaternion orientation;
 550         node->GetWorldMatrix(mImpl->renderBufferIndex).GetTransformComponents(position, orientation, scale);
 551
 552         Vector3 orientationAxis;
 553         Radian  orientationAngle;
 554         orientation.ToAxisAngle(orientationAxis, orientationAngle);
 555
 556         if(position.x > Math::MACHINE_EPSILON_10000 ||
 557            position.y > Math::MACHINE_EPSILON_10000 ||
 558            orientationAxis != Vector3(0.0f, 1.0f, 0.0f) ||
 559            orientationAngle != ANGLE_180 ||
 560            scale != Vector3(1.0f, 1.0f, 1.0f))
 561         {
 562           return;
 563         }
 564       }
 565     }
 566     else
 567     {
 568       return;
 569     }
 570
 571     Rect<int32_t> viewportRect;
 572     if(instruction.mIsViewportSet)
 573     {
 574       const int32_t y = (surfaceRect.height - instruction.mViewport.height) - instruction.mViewport.y;
 575       viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
 576       if(viewportRect.IsEmpty() || !viewportRect.IsValid())
 577       {
 578         return; // just skip funny use cases for now, empty viewport means it is set somewhere else
 579       }
 580     }
 581     else
 582     {
 583       viewportRect = surfaceRect;
 584     }
 585
 586     const Matrix* viewMatrix       = instruction.GetViewMatrix(mImpl->renderBufferIndex);
 587     const Matrix* projectionMatrix = instruction.GetProjectionMatrix(mImpl->renderBufferIndex);
 588     if(viewMatrix && projectionMatrix)
 589     {
 590       const RenderListContainer::SizeType count = instruction.RenderListCount();
 591       for(RenderListContainer::SizeType index = 0u; index < count; ++index)
 592       {
 593         const RenderList* renderList = instruction.GetRenderList(index);
 594         if(renderList && !renderList->IsEmpty())
 595         {
 596           const std::size_t listCount = renderList->Count();
 597           for(uint32_t listIndex = 0u; listIndex < listCount; ++listIndex)
 598           {
 599             RenderItem& item = renderList->GetItem(listIndex);
 600             // If the item does 3D transformation, do early exit and clean the damaged rect array
 601             if(item.mUpdateSize == Vector3::ZERO)
 602             {
 603               return;
 604             }
 605
 606             Rect<int> rect;
 607             DirtyRect dirtyRect(item.mNode, item.mRenderer, mImpl->frameCount, rect);
 608             // If the item refers to updated node or renderer.
 609             if(item.mIsUpdated ||
 610                (item.mNode &&
 611                 (item.mNode->Updated() || (item.mRenderer && item.mRenderer->Updated(mImpl->renderBufferIndex, item.mNode)))))
 612             {
 613               item.mIsUpdated = false;
 614               item.mNode->SetUpdatedTree(false);
 615
 616               rect = RenderItem::CalculateViewportSpaceAABB(item.mModelViewMatrix, item.mUpdateSize, viewportRect.width, viewportRect.height);
 617               if(rect.IsValid() && rect.Intersect(viewportRect) && !rect.IsEmpty())
 618               {
 619                 const int left   = rect.x;
 620                 const int top    = rect.y;
 621                 const int right  = rect.x + rect.width;
 622                 const int bottom = rect.y + rect.height;
 623                 rect.x           = (left / 16) * 16;
 624                 rect.y           = (top / 16) * 16;
 625                 rect.width       = ((right + 16) / 16) * 16 - rect.x;
 626                 rect.height      = ((bottom + 16) / 16) * 16 - rect.y;
 627
 628                 // Found valid dirty rect.
 629                 // 1. Insert it in the sorted array of the dirty rects.
 630                 // 2. Mark the related dirty rects as visited so they will not be removed below.
 631                 // 3. Keep only last 3 dirty rects for the same node and renderer (Tizen uses 3 back buffers, Ubuntu 1).
 632                 dirtyRect.rect    = rect;
 633                 auto dirtyRectPos = std::lower_bound(itemsDirtyRects.begin(), itemsDirtyRects.end(), dirtyRect);
 634                 dirtyRectPos      = itemsDirtyRects.insert(dirtyRectPos, dirtyRect);
 635
 636                 int c = 1;
 637                 while(++dirtyRectPos != itemsDirtyRects.end())
 638                 {
 639                   if(dirtyRectPos->node != item.mNode || dirtyRectPos->renderer != item.mRenderer)
 640                   {
 641                     break;
 642                   }
 643
 644                   dirtyRectPos->visited = true;
 645                   Rect<int>& dirtRect   = dirtyRectPos->rect;
 646                   rect.Merge(dirtRect);
 647
 648                   c++;
 649                   if(c > 3) // no more then 3 previous rects
 650                   {
 651                     itemsDirtyRects.erase(dirtyRectPos);
 652                     break;
 653                   }
 654                 }
 655
 656                 damagedRects.push_back(rect);
 657               }
 658             }
 659             else
 660             {
 661               // 1. The item is not dirty, the node and renderer referenced by the item are still exist.
 662               // 2. Mark the related dirty rects as visited so they will not be removed below.
 663               auto dirtyRectPos = std::lower_bound(itemsDirtyRects.begin(), itemsDirtyRects.end(), dirtyRect);
 664               while(dirtyRectPos != itemsDirtyRects.end())
 665               {
 666                 if(dirtyRectPos->node != item.mNode || dirtyRectPos->renderer != item.mRenderer)
 667                 {
 668                   break;
 669                 }
 670
 671                 dirtyRectPos->visited = true;
 672                 dirtyRectPos++;
 673               }
 674             }
 675           }
 676         }
 677       }
 678     }
 679   }
 680
 681   // Check removed nodes or removed renderers dirty rects
 682   auto i = itemsDirtyRects.begin();
 683   auto j = itemsDirtyRects.begin();
 684   while(i != itemsDirtyRects.end())
 685   {
 686     if(i->visited)
 687     {
 688       *j++ = *i;
 689     }
 690     else
 691     {
 692       Rect<int>& dirtRect = i->rect;
 693       damagedRects.push_back(dirtRect);
 694     }
 695     i++;
 696   }
 697
 698   itemsDirtyRects.resize(j - itemsDirtyRects.begin());
 699   damagedRectCleaner.SetCleanOnReturn(false);
 700 }
 701
 702 void RenderManager::RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo)
 703 {
 704   Rect<int> clippingRect;
 705   RenderScene(status, scene, renderToFbo, clippingRect);
 706 }
 707
 708 void RenderManager::RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo, Rect<int>& clippingRect)
 709 {
 710   // Reset main algorithms command buffer
 711   mImpl->renderAlgorithms.ResetCommandBuffer();
 712
 713   auto mainCommandBuffer = mImpl->renderAlgorithms.GetMainCommandBuffer();
 714
 715   Internal::Scene&   sceneInternal = GetImplementation(scene);
 716   SceneGraph::Scene* sceneObject   = sceneInternal.GetSceneObject();
 717
 718   uint32_t count = sceneObject->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 719
 720   std::vector<Graphics::RenderTarget*> targetstoPresent;
 721
 722   for(uint32_t i = 0; i < count; ++i)
 723   {
 724     RenderInstruction& instruction = sceneObject->GetRenderInstructions().At(mImpl->renderBufferIndex, i);
 725
 726     if((renderToFbo && !instruction.mFrameBuffer) || (!renderToFbo && instruction.mFrameBuffer))
 727     {
 728       continue; // skip
 729     }
 730
 731     // Mark that we will require a post-render step to be performed (includes swap-buffers).
 732     status.SetNeedsPostRender(true);
 733
 734     Rect<int32_t> viewportRect;
 735
 736     Rect<int32_t> surfaceRect        = sceneObject->GetSurfaceRect();
 737     int32_t       surfaceOrientation = sceneObject->GetSurfaceOrientation();
 738
 739     // @todo Should these be part of scene?
 740     Integration::DepthBufferAvailable   depthBufferAvailable   = mImpl->depthBufferAvailable;
 741     Integration::StencilBufferAvailable stencilBufferAvailable = mImpl->stencilBufferAvailable;
 742
 743     Graphics::RenderTarget*           currentRenderTarget = nullptr;
 744     Graphics::RenderPass*             currentRenderPass   = nullptr;
 745     std::vector<Graphics::ClearValue> currentClearValues{};
 746
 747     if(instruction.mFrameBuffer)
 748     {
 749       // Ensure graphics framebuffer is created, bind attachments and create render passes
 750       // Only happens once per framebuffer. If the create fails, e.g. no attachments yet,
 751       // then don't render to this framebuffer.
 752       if(!instruction.mFrameBuffer->GetGraphicsObject())
 753       {
 754         const bool created = instruction.mFrameBuffer->CreateGraphicsObjects();
 755         if(!created)
 756         {
 757           continue;
 758         }
 759       }
 760
 761       auto& clearValues = instruction.mFrameBuffer->GetGraphicsRenderPassClearValues();
 762
 763       // Set the clear color for first color attachment
 764       if(instruction.mIsClearColorSet && !clearValues.empty())
 765       {
 766         clearValues[0].color = {
 767           instruction.mClearColor.r,
 768           instruction.mClearColor.g,
 769           instruction.mClearColor.b,
 770           instruction.mClearColor.a};
 771       }
 772
 773       currentClearValues = clearValues;
 774
 775       auto loadOp = instruction.mIsClearColorSet ? Graphics::AttachmentLoadOp::CLEAR : Graphics::AttachmentLoadOp::LOAD;
 776
 777       // offscreen buffer
 778       currentRenderTarget = instruction.mFrameBuffer->GetGraphicsRenderTarget();
 779       currentRenderPass   = instruction.mFrameBuffer->GetGraphicsRenderPass(loadOp, Graphics::AttachmentStoreOp::STORE);
 780     }
 781     else // no framebuffer
 782     {
 783       // surface
 784       auto& clearValues = sceneObject->GetGraphicsRenderPassClearValues();
 785
 786       if(instruction.mIsClearColorSet)
 787       {
 788         clearValues[0].color = {
 789           instruction.mClearColor.r,
 790           instruction.mClearColor.g,
 791           instruction.mClearColor.b,
 792           instruction.mClearColor.a};
 793       }
 794
 795       currentClearValues = clearValues;
 796
 797       // @todo SceneObject should already have the depth clear / stencil clear in the clearValues array.
 798       // if the window has a depth/stencil buffer.
 799       if((depthBufferAvailable == Integration::DepthBufferAvailable::TRUE ||
 800           stencilBufferAvailable == Integration::StencilBufferAvailable::TRUE) &&
 801          (currentClearValues.size() <= 1))
 802       {
 803         currentClearValues.emplace_back();
 804         currentClearValues.back().depthStencil.depth   = 0;
 805         currentClearValues.back().depthStencil.stencil = 0;
 806       }
 807
 808       auto loadOp = instruction.mIsClearColorSet ? Graphics::AttachmentLoadOp::CLEAR : Graphics::AttachmentLoadOp::LOAD;
 809
 810       currentRenderTarget = sceneObject->GetSurfaceRenderTarget();
 811       currentRenderPass   = sceneObject->GetGraphicsRenderPass(loadOp, Graphics::AttachmentStoreOp::STORE);
 812     }
 813
 814     targetstoPresent.emplace_back(currentRenderTarget);
 815
 816     // reset the program matrices for all programs once per frame
 817     // this ensures we will set view and projection matrix once per program per camera
 818     mImpl->programController.ResetProgramMatrices();
 819
 820     if(instruction.mFrameBuffer)
 821     {
 822       // For each offscreen buffer, update the dependency list with the new texture id used by this frame buffer.
 823       for(unsigned int i0 = 0, i1 = instruction.mFrameBuffer->GetColorAttachmentCount(); i0 < i1; ++i0)
 824       {
 825         mImpl->textureDependencyList.PushBack(instruction.mFrameBuffer->GetTexture(i0));
 826       }
 827     }
 828
 829     if(!instruction.mIgnoreRenderToFbo && (instruction.mFrameBuffer != nullptr))
 830     {
 831       // Offscreen buffer rendering
 832       if(instruction.mIsViewportSet)
 833       {
 834         // For Viewport the lower-left corner is (0,0)
 835         const int32_t y = (instruction.mFrameBuffer->GetHeight() - instruction.mViewport.height) - instruction.mViewport.y;
 836         viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
 837       }
 838       else
 839       {
 840         viewportRect.Set(0, 0, instruction.mFrameBuffer->GetWidth(), instruction.mFrameBuffer->GetHeight());
 841       }
 842       surfaceOrientation = 0;
 843     }
 844     else // No Offscreen frame buffer rendering
 845     {
 846       // Check whether a viewport is specified, otherwise the full surface size is used
 847       if(instruction.mIsViewportSet)
 848       {
 849         // For Viewport the lower-left corner is (0,0)
 850         const int32_t y = (surfaceRect.height - instruction.mViewport.height) - instruction.mViewport.y;
 851         viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
 852       }
 853       else
 854       {
 855         viewportRect = surfaceRect;
 856       }
 857     }
 858
 859     // Set surface orientation
 860     // @todo Inform graphics impl by another route.
 861     // was: mImpl->currentContext->SetSurfaceOrientation(surfaceOrientation);
 862
 863     /*** Clear region of framebuffer or surface before drawing ***/
 864     bool clearFullFrameRect = (surfaceRect == viewportRect);
 865     if(instruction.mFrameBuffer != nullptr)
 866     {
 867       Viewport frameRect(0, 0, instruction.mFrameBuffer->GetWidth(), instruction.mFrameBuffer->GetHeight());
 868       clearFullFrameRect = (frameRect == viewportRect);
 869     }
 870
 871     if(!clippingRect.IsEmpty())
 872     {
 873       if(!clippingRect.Intersect(viewportRect))
 874       {
 875         DALI_LOG_ERROR("Invalid clipping rect %d %d %d %d\n", clippingRect.x, clippingRect.y, clippingRect.width, clippingRect.height);
 876         clippingRect = Rect<int>();
 877       }
 878       clearFullFrameRect = false;
 879     }
 880
 881     Graphics::Rect2D scissorArea{viewportRect.x, viewportRect.y, uint32_t(viewportRect.width), uint32_t(viewportRect.height)};
 882     if(instruction.mIsClearColorSet)
 883     {
 884       if(!clearFullFrameRect)
 885       {
 886         if(!clippingRect.IsEmpty())
 887         {
 888           scissorArea = {clippingRect.x, clippingRect.y, uint32_t(clippingRect.width), uint32_t(clippingRect.height)};
 889         }
 890       }
 891     }
 892
 893     // Scissor's value should be set based on the default system coordinates.
 894     // When the surface is rotated, the input values already were set with the rotated angle.
 895     // So, re-calculation is needed.
 896     scissorArea = RecalculateScissorArea(scissorArea, surfaceOrientation, viewportRect);
 897
 898     // Begin render pass
 899     mainCommandBuffer->BeginRenderPass(
 900       currentRenderPass,
 901       currentRenderTarget,
 902       scissorArea,
 903       currentClearValues);
 904
 905     mainCommandBuffer->SetViewport({float(viewportRect.x),
 906                                     float(viewportRect.y),
 907                                     float(viewportRect.width),
 908                                     float(viewportRect.height)});
 909
 910     // Clear the list of bound textures
 911     mImpl->boundTextures.Clear();
 912
 913     mImpl->renderAlgorithms.ProcessRenderInstruction(
 914       instruction,
 915       mImpl->renderBufferIndex,
 916       depthBufferAvailable,
 917       stencilBufferAvailable,
 918       mImpl->boundTextures,
 919       viewportRect,
 920       clippingRect,
 921       surfaceOrientation);
 922
 923     Graphics::SyncObject* syncObject{nullptr};
 924     // If the render instruction has an associated render tracker (owned separately)
 925     // and framebuffer, create a one shot sync object, and use it to determine when
 926     // the render pass has finished executing on GPU.
 927     if(instruction.mRenderTracker && instruction.mFrameBuffer)
 928     {
 929       syncObject                 = instruction.mRenderTracker->CreateSyncObject(mImpl->graphicsController);
 930       instruction.mRenderTracker = nullptr;
 931     }
 932     mainCommandBuffer->EndRenderPass(syncObject);
 933   }
 934   mImpl->renderAlgorithms.SubmitCommandBuffer();
 935
 936   std::sort(targetstoPresent.begin(), targetstoPresent.end());
 937
 938   Graphics::RenderTarget* rt = nullptr;
 939   for(auto& target : targetstoPresent)
 940   {
 941     if(target != rt)
 942     {
 943       mImpl->graphicsController.PresentRenderTarget(target);
 944       rt = target;
 945     }
 946   }
 947 }
 948
 949 void RenderManager::PostRender(bool uploadOnly)
 950 {
 951   // Notify RenderGeometries that rendering has finished
 952   for(auto&& iter : mImpl->geometryContainer)
 953   {
 954     iter->OnRenderFinished();
 955   }
 956
 957   mImpl->UpdateTrackers();
 958
 959   uint32_t count = 0u;
 960   for(auto& scene : mImpl->sceneContainer)
 961   {
 962     count += scene->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 963   }
 964
 965   const bool haveInstructions = count > 0u;
 966
 967   // If this frame was rendered due to instructions existing, we mark this so we know to clear the next frame.
 968   mImpl->lastFrameWasRendered = haveInstructions;
 969
 970   /**
 971    * The rendering has finished; swap to the next buffer.
 972    * Ideally the update has just finished using this buffer; otherwise the render thread
 973    * should block until the update has finished.
 974    */
 975   mImpl->renderBufferIndex = (0 != mImpl->renderBufferIndex) ? 0 : 1;
 976
 977   DALI_PRINT_RENDER_END();
 978 }
 979
 980 } // namespace SceneGraph
 981
 982 } // namespace Internal
 983
 984 } // namespace Dali