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/nodes/scene-graph-layer.h>
  32 #include <dali/internal/update/render-tasks/scene-graph-camera.h>
  33
  34 #include <dali/internal/render/common/render-algorithms.h>
  35 #include <dali/internal/render/common/render-debug.h>
  36 #include <dali/internal/render/common/render-instruction.h>
  37 #include <dali/internal/render/common/render-tracker.h>
  38 #include <dali/internal/render/queue/render-queue.h>
  39 #include <dali/internal/render/renderers/pipeline-cache.h>
  40 #include <dali/internal/render/renderers/render-frame-buffer.h>
  41 #include <dali/internal/render/renderers/render-texture.h>
  42 #include <dali/internal/render/renderers/shader-cache.h>
  43 #include <dali/internal/render/renderers/uniform-buffer-manager.h>
  44 #include <dali/internal/render/renderers/uniform-buffer-view-pool.h>
  45 #include <dali/internal/render/shaders/program-controller.h>
  46
  47 #include <memory>
  48
  49 namespace Dali
  50 {
  51 namespace Internal
  52 {
  53 namespace SceneGraph
  54 {
  55 #if defined(DEBUG_ENABLED)
  56 namespace
  57 {
  58 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_RENDER_MANAGER");
  59 } // unnamed namespace
  60 #endif
  61
  62 namespace
  63 {
  64 inline Graphics::Rect2D RecalculateScissorArea(Graphics::Rect2D scissorArea, int orientation, Rect<int32_t> viewportRect)
  65 {
  66   Graphics::Rect2D newScissorArea;
  67
  68   if(orientation == 90)
  69   {
  70     newScissorArea.x      = viewportRect.height - (scissorArea.y + scissorArea.height);
  71     newScissorArea.y      = scissorArea.x;
  72     newScissorArea.width  = scissorArea.height;
  73     newScissorArea.height = scissorArea.width;
  74   }
  75   else if(orientation == 180)
  76   {
  77     newScissorArea.x      = viewportRect.width - (scissorArea.x + scissorArea.width);
  78     newScissorArea.y      = viewportRect.height - (scissorArea.y + scissorArea.height);
  79     newScissorArea.width  = scissorArea.width;
  80     newScissorArea.height = scissorArea.height;
  81   }
  82   else if(orientation == 270)
  83   {
  84     newScissorArea.x      = scissorArea.y;
  85     newScissorArea.y      = viewportRect.width - (scissorArea.x + scissorArea.width);
  86     newScissorArea.width  = scissorArea.height;
  87     newScissorArea.height = scissorArea.width;
  88   }
  89   else
  90   {
  91     newScissorArea.x      = scissorArea.x;
  92     newScissorArea.y      = scissorArea.y;
  93     newScissorArea.width  = scissorArea.width;
  94     newScissorArea.height = scissorArea.height;
  95   }
  96   return newScissorArea;
  97 }
  98 } // namespace
  99 /**
 100  * Structure to contain internal data
 101  */
 102 struct RenderManager::Impl
 103 {
 104   Impl(Graphics::Controller&               graphicsController,
 105        Integration::DepthBufferAvailable   depthBufferAvailableParam,
 106        Integration::StencilBufferAvailable stencilBufferAvailableParam,
 107        Integration::PartialUpdateAvailable partialUpdateAvailableParam)
 108   : graphicsController(graphicsController),
 109     renderQueue(),
 110     renderAlgorithms(graphicsController),
 111     frameCount(0u),
 112     renderBufferIndex(SceneGraphBuffers::INITIAL_UPDATE_BUFFER_INDEX),
 113     rendererContainer(),
 114     samplerContainer(),
 115     textureContainer(),
 116     frameBufferContainer(),
 117     lastFrameWasRendered(false),
 118     programController(graphicsController),
 119     shaderCache(graphicsController),
 120     depthBufferAvailable(depthBufferAvailableParam),
 121     stencilBufferAvailable(stencilBufferAvailableParam),
 122     partialUpdateAvailable(partialUpdateAvailableParam)
 123   {
 124     // Create thread pool with just one thread ( there may be a need to create more threads in the future ).
 125     threadPool = std::make_unique<Dali::ThreadPool>();
 126     threadPool->Initialize(1u);
 127
 128     uniformBufferManager = std::make_unique<Render::UniformBufferManager>(&graphicsController);
 129     pipelineCache        = std::make_unique<Render::PipelineCache>(graphicsController);
 130   }
 131
 132   ~Impl()
 133   {
 134     threadPool.reset(nullptr); // reset now to maintain correct destruction order
 135   }
 136
 137   void AddRenderTracker(Render::RenderTracker* renderTracker)
 138   {
 139     DALI_ASSERT_DEBUG(renderTracker != nullptr);
 140     mRenderTrackers.PushBack(renderTracker);
 141   }
 142
 143   void RemoveRenderTracker(Render::RenderTracker* renderTracker)
 144   {
 145     mRenderTrackers.EraseObject(renderTracker);
 146   }
 147
 148   void UpdateTrackers()
 149   {
 150     for(auto&& iter : mRenderTrackers)
 151     {
 152       iter->PollSyncObject();
 153     }
 154   }
 155
 156   // the order is important for destruction,
 157   Graphics::Controller& graphicsController;
 158   RenderQueue           renderQueue; ///< A message queue for receiving messages from the update-thread.
 159
 160   std::vector<SceneGraph::Scene*> sceneContainer; ///< List of pointers to the scene graph objects of the scenes
 161
 162   Render::RenderAlgorithms renderAlgorithms; ///< The RenderAlgorithms object is used to action the renders required by a RenderInstruction
 163
 164   uint32_t    frameCount;        ///< The current frame count
 165   BufferIndex renderBufferIndex; ///< The index of the buffer to read from; this is opposite of the "update" buffer
 166
 167   OwnerContainer<Render::Renderer*>     rendererContainer;     ///< List of owned renderers
 168   OwnerContainer<Render::Sampler*>      samplerContainer;      ///< List of owned samplers
 169   OwnerContainer<Render::Texture*>      textureContainer;      ///< List of owned textures
 170   OwnerContainer<Render::FrameBuffer*>  frameBufferContainer;  ///< List of owned framebuffers
 171   OwnerContainer<Render::VertexBuffer*> vertexBufferContainer; ///< List of owned vertex buffers
 172   OwnerContainer<Render::Geometry*>     geometryContainer;     ///< List of owned Geometries
 173
 174   bool lastFrameWasRendered; ///< Keeps track of the last frame being rendered due to having render instructions
 175
 176   OwnerContainer<Render::RenderTracker*> mRenderTrackers; ///< List of render trackers
 177
 178   ProgramController   programController; ///< Owner of the programs
 179   Render::ShaderCache shaderCache;       ///< The cache for the graphics shaders
 180
 181   std::unique_ptr<Render::UniformBufferManager> uniformBufferManager; ///< The uniform buffer manager
 182   std::unique_ptr<Render::PipelineCache>        pipelineCache;
 183
 184   Integration::DepthBufferAvailable   depthBufferAvailable;   ///< Whether the depth buffer is available
 185   Integration::StencilBufferAvailable stencilBufferAvailable; ///< Whether the stencil buffer is available
 186   Integration::PartialUpdateAvailable partialUpdateAvailable; ///< Whether the partial update is available
 187
 188   std::unique_ptr<Dali::ThreadPool> threadPool;            ///< The thread pool
 189   Vector<Graphics::Texture*>        boundTextures;         ///< The textures bound for rendering
 190   Vector<Graphics::Texture*>        textureDependencyList; ///< The dependency list of bound textures
 191 };
 192
 193 RenderManager* RenderManager::New(Graphics::Controller&               graphicsController,
 194                                   Integration::DepthBufferAvailable   depthBufferAvailable,
 195                                   Integration::StencilBufferAvailable stencilBufferAvailable,
 196                                   Integration::PartialUpdateAvailable partialUpdateAvailable)
 197 {
 198   auto* manager  = new RenderManager;
 199   manager->mImpl = new Impl(graphicsController,
 200                             depthBufferAvailable,
 201                             stencilBufferAvailable,
 202                             partialUpdateAvailable);
 203   return manager;
 204 }
 205
 206 RenderManager::RenderManager()
 207 : mImpl(nullptr)
 208 {
 209 }
 210
 211 RenderManager::~RenderManager()
 212 {
 213   delete mImpl;
 214 }
 215
 216 RenderQueue& RenderManager::GetRenderQueue()
 217 {
 218   return mImpl->renderQueue;
 219 }
 220
 221 void RenderManager::SetShaderSaver(ShaderSaver& upstream)
 222 {
 223 }
 224
 225 void RenderManager::AddRenderer(OwnerPointer<Render::Renderer>& renderer)
 226 {
 227   // Initialize the renderer as we are now in render thread
 228   renderer->Initialize(mImpl->graphicsController, mImpl->programController, mImpl->shaderCache, *(mImpl->uniformBufferManager.get()), *(mImpl->pipelineCache.get()));
 229
 230   mImpl->rendererContainer.PushBack(renderer.Release());
 231 }
 232
 233 void RenderManager::RemoveRenderer(Render::Renderer* renderer)
 234 {
 235   mImpl->rendererContainer.EraseObject(renderer);
 236 }
 237
 238 void RenderManager::AddSampler(OwnerPointer<Render::Sampler>& sampler)
 239 {
 240   sampler->Initialize(mImpl->graphicsController);
 241   mImpl->samplerContainer.PushBack(sampler.Release());
 242 }
 243
 244 void RenderManager::RemoveSampler(Render::Sampler* sampler)
 245 {
 246   mImpl->samplerContainer.EraseObject(sampler);
 247 }
 248
 249 void RenderManager::AddTexture(OwnerPointer<Render::Texture>& texture)
 250 {
 251   texture->Initialize(mImpl->graphicsController);
 252   mImpl->textureContainer.PushBack(texture.Release());
 253 }
 254
 255 void RenderManager::RemoveTexture(Render::Texture* texture)
 256 {
 257   DALI_ASSERT_DEBUG(NULL != texture);
 258
 259   // Find the texture, use reference to pointer so we can do the erase safely
 260   for(auto&& iter : mImpl->textureContainer)
 261   {
 262     if(iter == texture)
 263     {
 264       texture->Destroy();
 265       mImpl->textureContainer.Erase(&iter); // Texture found; now destroy it
 266       return;
 267     }
 268   }
 269 }
 270
 271 void RenderManager::UploadTexture(Render::Texture* texture, PixelDataPtr pixelData, const Texture::UploadParams& params)
 272 {
 273   texture->Upload(pixelData, params);
 274 }
 275
 276 void RenderManager::GenerateMipmaps(Render::Texture* texture)
 277 {
 278   texture->GenerateMipmaps();
 279 }
 280
 281 void RenderManager::SetFilterMode(Render::Sampler* sampler, uint32_t minFilterMode, uint32_t magFilterMode)
 282 {
 283   sampler->SetFilterMode(static_cast<Dali::FilterMode::Type>(minFilterMode),
 284                          static_cast<Dali::FilterMode::Type>(magFilterMode));
 285 }
 286
 287 void RenderManager::SetWrapMode(Render::Sampler* sampler, uint32_t rWrapMode, uint32_t sWrapMode, uint32_t tWrapMode)
 288 {
 289   sampler->SetWrapMode(static_cast<Dali::WrapMode::Type>(rWrapMode),
 290                        static_cast<Dali::WrapMode::Type>(sWrapMode),
 291                        static_cast<Dali::WrapMode::Type>(tWrapMode));
 292 }
 293
 294 void RenderManager::AddFrameBuffer(OwnerPointer<Render::FrameBuffer>& frameBuffer)
 295 {
 296   Render::FrameBuffer* frameBufferPtr = frameBuffer.Release();
 297   mImpl->frameBufferContainer.PushBack(frameBufferPtr);
 298   frameBufferPtr->Initialize(mImpl->graphicsController);
 299 }
 300
 301 void RenderManager::RemoveFrameBuffer(Render::FrameBuffer* frameBuffer)
 302 {
 303   DALI_ASSERT_DEBUG(nullptr != frameBuffer);
 304
 305   // Find the sampler, use reference so we can safely do the erase
 306   for(auto&& iter : mImpl->frameBufferContainer)
 307   {
 308     if(iter == frameBuffer)
 309     {
 310       frameBuffer->Destroy();
 311       mImpl->frameBufferContainer.Erase(&iter); // frameBuffer found; now destroy it
 312
 313       break;
 314     }
 315   }
 316 }
 317
 318 void RenderManager::InitializeScene(SceneGraph::Scene* scene)
 319 {
 320   scene->Initialize(mImpl->graphicsController, mImpl->depthBufferAvailable, mImpl->stencilBufferAvailable);
 321   mImpl->sceneContainer.push_back(scene);
 322 }
 323
 324 void RenderManager::UninitializeScene(SceneGraph::Scene* scene)
 325 {
 326   auto iter = std::find(mImpl->sceneContainer.begin(), mImpl->sceneContainer.end(), scene);
 327   if(iter != mImpl->sceneContainer.end())
 328   {
 329     mImpl->sceneContainer.erase(iter);
 330   }
 331 }
 332
 333 void RenderManager::SurfaceReplaced(SceneGraph::Scene* scene)
 334 {
 335   scene->Initialize(mImpl->graphicsController, mImpl->depthBufferAvailable, mImpl->stencilBufferAvailable);
 336 }
 337
 338 void RenderManager::AttachColorTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel, uint32_t layer)
 339 {
 340   frameBuffer->AttachColorTexture(texture, mipmapLevel, layer);
 341 }
 342
 343 void RenderManager::AttachDepthTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel)
 344 {
 345   frameBuffer->AttachDepthTexture(texture, mipmapLevel);
 346 }
 347
 348 void RenderManager::AttachDepthStencilTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel)
 349 {
 350   frameBuffer->AttachDepthStencilTexture(texture, mipmapLevel);
 351 }
 352
 353 void RenderManager::AddVertexBuffer(OwnerPointer<Render::VertexBuffer>& vertexBuffer)
 354 {
 355   mImpl->vertexBufferContainer.PushBack(vertexBuffer.Release());
 356 }
 357
 358 void RenderManager::RemoveVertexBuffer(Render::VertexBuffer* vertexBuffer)
 359 {
 360   mImpl->vertexBufferContainer.EraseObject(vertexBuffer);
 361 }
 362
 363 void RenderManager::SetVertexBufferFormat(Render::VertexBuffer* vertexBuffer, OwnerPointer<Render::VertexBuffer::Format>& format)
 364 {
 365   vertexBuffer->SetFormat(format.Release());
 366 }
 367
 368 void RenderManager::SetVertexBufferData(Render::VertexBuffer* vertexBuffer, OwnerPointer<Vector<uint8_t>>& data, uint32_t size)
 369 {
 370   vertexBuffer->SetData(data.Release(), size);
 371 }
 372
 373 void RenderManager::SetIndexBuffer(Render::Geometry* geometry, Dali::Vector<uint16_t>& indices)
 374 {
 375   geometry->SetIndexBuffer(indices);
 376 }
 377
 378 void RenderManager::AddGeometry(OwnerPointer<Render::Geometry>& geometry)
 379 {
 380   mImpl->geometryContainer.PushBack(geometry.Release());
 381 }
 382
 383 void RenderManager::RemoveGeometry(Render::Geometry* geometry)
 384 {
 385   auto it = std::find_if(mImpl->geometryContainer.begin(), mImpl->geometryContainer.end(), [geometry](auto& item) {
 386     return geometry == item;
 387   });
 388
 389   if(it != mImpl->geometryContainer.end())
 390   {
 391     mImpl->geometryContainer.Erase(it);
 392   }
 393 }
 394
 395 void RenderManager::AttachVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer)
 396 {
 397   DALI_ASSERT_DEBUG(nullptr != geometry);
 398
 399   // Find the geometry
 400   for(auto&& iter : mImpl->geometryContainer)
 401   {
 402     if(iter == geometry)
 403     {
 404       iter->AddVertexBuffer(vertexBuffer);
 405       break;
 406     }
 407   }
 408 }
 409
 410 void RenderManager::RemoveVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer)
 411 {
 412   DALI_ASSERT_DEBUG(nullptr != geometry);
 413
 414   // Find the geometry
 415   for(auto&& iter : mImpl->geometryContainer)
 416   {
 417     if(iter == geometry)
 418     {
 419       iter->RemoveVertexBuffer(vertexBuffer);
 420       break;
 421     }
 422   }
 423 }
 424
 425 void RenderManager::SetGeometryType(Render::Geometry* geometry, uint32_t geometryType)
 426 {
 427   geometry->SetType(Render::Geometry::Type(geometryType));
 428 }
 429
 430 void RenderManager::AddRenderTracker(Render::RenderTracker* renderTracker)
 431 {
 432   mImpl->AddRenderTracker(renderTracker);
 433 }
 434
 435 void RenderManager::RemoveRenderTracker(Render::RenderTracker* renderTracker)
 436 {
 437   mImpl->RemoveRenderTracker(renderTracker);
 438 }
 439
 440 void RenderManager::PreRender(Integration::RenderStatus& status, bool forceClear, bool uploadOnly)
 441 {
 442   DALI_PRINT_RENDER_START(mImpl->renderBufferIndex);
 443
 444   // Rollback
 445   mImpl->uniformBufferManager->GetUniformBufferViewPool(mImpl->renderBufferIndex)->Rollback();
 446
 447   // Increment the frame count at the beginning of each frame
 448   ++mImpl->frameCount;
 449
 450   // Process messages queued during previous update
 451   mImpl->renderQueue.ProcessMessages(mImpl->renderBufferIndex);
 452
 453   uint32_t count = 0u;
 454   for(auto& i : mImpl->sceneContainer)
 455   {
 456     count += i->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 457   }
 458
 459   const bool haveInstructions = count > 0u;
 460
 461   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");
 462
 463   // Only render if we have instructions to render, or the last frame was rendered (and therefore a clear is required).
 464   if(haveInstructions || mImpl->lastFrameWasRendered || forceClear)
 465   {
 466     DALI_LOG_INFO(gLogFilter, Debug::General, "Render: Processing\n");
 467
 468     // Upload the geometries
 469     for(auto&& geom : mImpl->geometryContainer)
 470     {
 471       geom->Upload(mImpl->graphicsController);
 472     }
 473   }
 474 }
 475
 476 void RenderManager::PreRender(Integration::Scene& scene, std::vector<Rect<int>>& damagedRects)
 477 {
 478   if(mImpl->partialUpdateAvailable != Integration::PartialUpdateAvailable::TRUE)
 479   {
 480     return;
 481   }
 482
 483   Internal::Scene&   sceneInternal = GetImplementation(scene);
 484   SceneGraph::Scene* sceneObject   = sceneInternal.GetSceneObject();
 485
 486   if(sceneObject->IsRenderingSkipped())
 487   {
 488     // We don't need to calculate dirty rects
 489     return;
 490   }
 491
 492   class DamagedRectsCleaner
 493   {
 494   public:
 495     explicit DamagedRectsCleaner(std::vector<Rect<int>>& damagedRects, Rect<int>& surfaceRect)
 496     : mDamagedRects(damagedRects),
 497       mSurfaceRect(surfaceRect),
 498       mCleanOnReturn(true)
 499     {
 500     }
 501
 502     void SetCleanOnReturn(bool cleanOnReturn)
 503     {
 504       mCleanOnReturn = cleanOnReturn;
 505     }
 506
 507     ~DamagedRectsCleaner()
 508     {
 509       if(mCleanOnReturn)
 510       {
 511         mDamagedRects.clear();
 512         mDamagedRects.push_back(mSurfaceRect);
 513       }
 514     }
 515
 516   private:
 517     std::vector<Rect<int>>& mDamagedRects;
 518     Rect<int>               mSurfaceRect;
 519     bool                    mCleanOnReturn;
 520   };
 521
 522   Rect<int32_t> surfaceRect = sceneObject->GetSurfaceRect();
 523
 524   // Clean collected dirty/damaged rects on exit if 3d layer or 3d node or other conditions.
 525   DamagedRectsCleaner damagedRectCleaner(damagedRects, surfaceRect);
 526
 527   // Mark previous dirty rects in the sorted array. The array is already sorted by node and renderer, frame number.
 528   // so you don't need to sort: std::stable_sort(itemsDirtyRects.begin(), itemsDirtyRects.end());
 529   std::vector<DirtyRect>& itemsDirtyRects = sceneInternal.GetItemsDirtyRects();
 530   for(DirtyRect& dirtyRect : itemsDirtyRects)
 531   {
 532     dirtyRect.visited = false;
 533   }
 534
 535   uint32_t instructionCount = sceneObject->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 536   for(uint32_t i = 0; i < instructionCount; ++i)
 537   {
 538     RenderInstruction& instruction = sceneObject->GetRenderInstructions().At(mImpl->renderBufferIndex, i);
 539
 540     if(instruction.mFrameBuffer)
 541     {
 542       return; // TODO: reset, we don't deal with render tasks with framebuffers (for now)
 543     }
 544
 545     const Camera* camera = instruction.GetCamera();
 546     if(camera->mType == Camera::DEFAULT_TYPE && camera->mTargetPosition == Camera::DEFAULT_TARGET_POSITION)
 547     {
 548       const Node* node = instruction.GetCamera()->GetNode();
 549       if(node)
 550       {
 551         Vector3    position;
 552         Vector3    scale;
 553         Quaternion orientation;
 554         node->GetWorldMatrix(mImpl->renderBufferIndex).GetTransformComponents(position, orientation, scale);
 555
 556         Vector3 orientationAxis;
 557         Radian  orientationAngle;
 558         orientation.ToAxisAngle(orientationAxis, orientationAngle);
 559
 560         if(position.x > Math::MACHINE_EPSILON_10000 ||
 561            position.y > Math::MACHINE_EPSILON_10000 ||
 562            orientationAxis != Vector3(0.0f, 1.0f, 0.0f) ||
 563            orientationAngle != ANGLE_180 ||
 564            scale != Vector3(1.0f, 1.0f, 1.0f))
 565         {
 566           return;
 567         }
 568       }
 569     }
 570     else
 571     {
 572       return;
 573     }
 574
 575     Rect<int32_t> viewportRect;
 576     if(instruction.mIsViewportSet)
 577     {
 578       const int32_t y = (surfaceRect.height - instruction.mViewport.height) - instruction.mViewport.y;
 579       viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
 580       if(viewportRect.IsEmpty() || !viewportRect.IsValid())
 581       {
 582         return; // just skip funny use cases for now, empty viewport means it is set somewhere else
 583       }
 584     }
 585     else
 586     {
 587       viewportRect = surfaceRect;
 588     }
 589
 590     const Matrix* viewMatrix       = instruction.GetViewMatrix(mImpl->renderBufferIndex);
 591     const Matrix* projectionMatrix = instruction.GetProjectionMatrix(mImpl->renderBufferIndex);
 592     if(viewMatrix && projectionMatrix)
 593     {
 594       const RenderListContainer::SizeType count = instruction.RenderListCount();
 595       for(RenderListContainer::SizeType index = 0u; index < count; ++index)
 596       {
 597         const RenderList* renderList = instruction.GetRenderList(index);
 598         if(renderList)
 599         {
 600           if(!renderList->IsEmpty())
 601           {
 602             const std::size_t listCount = renderList->Count();
 603             for(uint32_t listIndex = 0u; listIndex < listCount; ++listIndex)
 604             {
 605               RenderItem& item = renderList->GetItem(listIndex);
 606               // If the item does 3D transformation, do early exit and clean the damaged rect array
 607               if(item.mUpdateSize == Vector3::ZERO)
 608               {
 609                 return;
 610               }
 611
 612               Rect<int> rect;
 613               DirtyRect dirtyRect(item.mNode, item.mRenderer, mImpl->frameCount, rect);
 614               // If the item refers to updated node or renderer.
 615               if(item.mIsUpdated ||
 616                  (item.mNode &&
 617                   (item.mNode->Updated() || (item.mRenderer && item.mRenderer->Updated(mImpl->renderBufferIndex, item.mNode)))))
 618               {
 619                 item.mIsUpdated = false;
 620
 621                 rect = RenderItem::CalculateViewportSpaceAABB(item.mModelViewMatrix, item.mUpdateSize, viewportRect.width, viewportRect.height);
 622                 if(rect.IsValid() && rect.Intersect(viewportRect) && !rect.IsEmpty())
 623                 {
 624                   const int left   = rect.x;
 625                   const int top    = rect.y;
 626                   const int right  = rect.x + rect.width;
 627                   const int bottom = rect.y + rect.height;
 628                   rect.x           = (left / 16) * 16;
 629                   rect.y           = (top / 16) * 16;
 630                   rect.width       = ((right + 16) / 16) * 16 - rect.x;
 631                   rect.height      = ((bottom + 16) / 16) * 16 - rect.y;
 632
 633                   // Found valid dirty rect.
 634                   // 1. Insert it in the sorted array of the dirty rects.
 635                   // 2. Mark the related dirty rects as visited so they will not be removed below.
 636                   // 3. Keep only last 3 dirty rects for the same node and renderer (Tizen uses 3 back buffers, Ubuntu 1).
 637                   dirtyRect.rect    = rect;
 638                   auto dirtyRectPos = std::lower_bound(itemsDirtyRects.begin(), itemsDirtyRects.end(), dirtyRect);
 639                   dirtyRectPos      = itemsDirtyRects.insert(dirtyRectPos, dirtyRect);
 640
 641                   int c = 1;
 642                   while(++dirtyRectPos != itemsDirtyRects.end())
 643                   {
 644                     if(dirtyRectPos->node != item.mNode || dirtyRectPos->renderer != item.mRenderer)
 645                     {
 646                       break;
 647                     }
 648
 649                     dirtyRectPos->visited = true;
 650                     Rect<int>& dirtRect   = dirtyRectPos->rect;
 651                     rect.Merge(dirtRect);
 652
 653                     c++;
 654                     if(c > 3) // no more then 3 previous rects
 655                     {
 656                       itemsDirtyRects.erase(dirtyRectPos);
 657                       break;
 658                     }
 659                   }
 660
 661                   damagedRects.push_back(rect);
 662                 }
 663               }
 664               else
 665               {
 666                 // 1. The item is not dirty, the node and renderer referenced by the item are still exist.
 667                 // 2. Mark the related dirty rects as visited so they will not be removed below.
 668                 auto dirtyRectPos = std::lower_bound(itemsDirtyRects.begin(), itemsDirtyRects.end(), dirtyRect);
 669                 while(dirtyRectPos != itemsDirtyRects.end())
 670                 {
 671                   if(dirtyRectPos->node != item.mNode || dirtyRectPos->renderer != item.mRenderer)
 672                   {
 673                     break;
 674                   }
 675
 676                   dirtyRectPos->visited = true;
 677                   dirtyRectPos++;
 678                 }
 679               }
 680             }
 681           }
 682
 683           // Reset updated flag from the root
 684           Layer* sourceLayer = renderList->GetSourceLayer();
 685           if(sourceLayer)
 686           {
 687             sourceLayer->SetUpdatedTree(false);
 688           }
 689         }
 690       }
 691     }
 692   }
 693
 694   // Check removed nodes or removed renderers dirty rects
 695   auto i = itemsDirtyRects.begin();
 696   auto j = itemsDirtyRects.begin();
 697   while(i != itemsDirtyRects.end())
 698   {
 699     if(i->visited)
 700     {
 701       *j++ = *i;
 702     }
 703     else
 704     {
 705       Rect<int>& dirtRect = i->rect;
 706       damagedRects.push_back(dirtRect);
 707     }
 708     i++;
 709   }
 710
 711   itemsDirtyRects.resize(j - itemsDirtyRects.begin());
 712   damagedRectCleaner.SetCleanOnReturn(false);
 713 }
 714
 715 void RenderManager::RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo)
 716 {
 717   Rect<int> clippingRect;
 718   RenderScene(status, scene, renderToFbo, clippingRect);
 719 }
 720
 721 void RenderManager::RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo, Rect<int>& clippingRect)
 722 {
 723   if(mImpl->partialUpdateAvailable == Integration::PartialUpdateAvailable::TRUE && !renderToFbo && clippingRect.IsEmpty())
 724   {
 725     // ClippingRect is empty. Skip rendering
 726     return;
 727   }
 728
 729   // Reset main algorithms command buffer
 730   mImpl->renderAlgorithms.ResetCommandBuffer();
 731
 732   auto mainCommandBuffer = mImpl->renderAlgorithms.GetMainCommandBuffer();
 733
 734   Internal::Scene&   sceneInternal = GetImplementation(scene);
 735   SceneGraph::Scene* sceneObject   = sceneInternal.GetSceneObject();
 736
 737   uint32_t count = sceneObject->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 738
 739   std::vector<Graphics::RenderTarget*> targetstoPresent;
 740
 741   Rect<int32_t> surfaceRect = sceneObject->GetSurfaceRect();
 742   if(clippingRect == surfaceRect)
 743   {
 744     // Full rendering case
 745     // Make clippingRect empty because we're doing full rendering now if the clippingRect is empty.
 746     // To reduce side effects, keep this logic now.
 747     clippingRect = Rect<int>();
 748   }
 749
 750   for(uint32_t i = 0; i < count; ++i)
 751   {
 752     RenderInstruction& instruction = sceneObject->GetRenderInstructions().At(mImpl->renderBufferIndex, i);
 753
 754     if((renderToFbo && !instruction.mFrameBuffer) || (!renderToFbo && instruction.mFrameBuffer))
 755     {
 756       continue; // skip
 757     }
 758
 759     // Mark that we will require a post-render step to be performed (includes swap-buffers).
 760     status.SetNeedsPostRender(true);
 761
 762     Rect<int32_t> viewportRect;
 763
 764     int32_t surfaceOrientation = sceneObject->GetSurfaceOrientation();
 765
 766     // @todo Should these be part of scene?
 767     Integration::DepthBufferAvailable   depthBufferAvailable   = mImpl->depthBufferAvailable;
 768     Integration::StencilBufferAvailable stencilBufferAvailable = mImpl->stencilBufferAvailable;
 769
 770     Graphics::RenderTarget*           currentRenderTarget = nullptr;
 771     Graphics::RenderPass*             currentRenderPass   = nullptr;
 772     std::vector<Graphics::ClearValue> currentClearValues{};
 773
 774     if(instruction.mFrameBuffer)
 775     {
 776       // Ensure graphics framebuffer is created, bind attachments and create render passes
 777       // Only happens once per framebuffer. If the create fails, e.g. no attachments yet,
 778       // then don't render to this framebuffer.
 779       if(!instruction.mFrameBuffer->GetGraphicsObject())
 780       {
 781         const bool created = instruction.mFrameBuffer->CreateGraphicsObjects();
 782         if(!created)
 783         {
 784           continue;
 785         }
 786       }
 787
 788       auto& clearValues = instruction.mFrameBuffer->GetGraphicsRenderPassClearValues();
 789
 790       // Set the clear color for first color attachment
 791       if(instruction.mIsClearColorSet && !clearValues.empty())
 792       {
 793         clearValues[0].color = {
 794           instruction.mClearColor.r,
 795           instruction.mClearColor.g,
 796           instruction.mClearColor.b,
 797           instruction.mClearColor.a};
 798       }
 799
 800       currentClearValues = clearValues;
 801
 802       auto loadOp = instruction.mIsClearColorSet ? Graphics::AttachmentLoadOp::CLEAR : Graphics::AttachmentLoadOp::LOAD;
 803
 804       // offscreen buffer
 805       currentRenderTarget = instruction.mFrameBuffer->GetGraphicsRenderTarget();
 806       currentRenderPass   = instruction.mFrameBuffer->GetGraphicsRenderPass(loadOp, Graphics::AttachmentStoreOp::STORE);
 807     }
 808     else // no framebuffer
 809     {
 810       // surface
 811       auto& clearValues = sceneObject->GetGraphicsRenderPassClearValues();
 812
 813       if(instruction.mIsClearColorSet)
 814       {
 815         clearValues[0].color = {
 816           instruction.mClearColor.r,
 817           instruction.mClearColor.g,
 818           instruction.mClearColor.b,
 819           instruction.mClearColor.a};
 820       }
 821
 822       currentClearValues = clearValues;
 823
 824       // @todo SceneObject should already have the depth clear / stencil clear in the clearValues array.
 825       // if the window has a depth/stencil buffer.
 826       if((depthBufferAvailable == Integration::DepthBufferAvailable::TRUE ||
 827           stencilBufferAvailable == Integration::StencilBufferAvailable::TRUE) &&
 828          (currentClearValues.size() <= 1))
 829       {
 830         currentClearValues.emplace_back();
 831         currentClearValues.back().depthStencil.depth   = 0;
 832         currentClearValues.back().depthStencil.stencil = 0;
 833       }
 834
 835       auto loadOp = instruction.mIsClearColorSet ? Graphics::AttachmentLoadOp::CLEAR : Graphics::AttachmentLoadOp::LOAD;
 836
 837       currentRenderTarget = sceneObject->GetSurfaceRenderTarget();
 838       currentRenderPass   = sceneObject->GetGraphicsRenderPass(loadOp, Graphics::AttachmentStoreOp::STORE);
 839     }
 840
 841     targetstoPresent.emplace_back(currentRenderTarget);
 842
 843     // reset the program matrices for all programs once per frame
 844     // this ensures we will set view and projection matrix once per program per camera
 845     mImpl->programController.ResetProgramMatrices();
 846
 847     if(instruction.mFrameBuffer)
 848     {
 849       // For each offscreen buffer, update the dependency list with the new texture id used by this frame buffer.
 850       for(unsigned int i0 = 0, i1 = instruction.mFrameBuffer->GetColorAttachmentCount(); i0 < i1; ++i0)
 851       {
 852         mImpl->textureDependencyList.PushBack(instruction.mFrameBuffer->GetTexture(i0));
 853       }
 854     }
 855
 856     if(!instruction.mIgnoreRenderToFbo && (instruction.mFrameBuffer != nullptr))
 857     {
 858       // Offscreen buffer rendering
 859       if(instruction.mIsViewportSet)
 860       {
 861         // For Viewport the lower-left corner is (0,0)
 862         const int32_t y = (instruction.mFrameBuffer->GetHeight() - instruction.mViewport.height) - instruction.mViewport.y;
 863         viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
 864       }
 865       else
 866       {
 867         viewportRect.Set(0, 0, instruction.mFrameBuffer->GetWidth(), instruction.mFrameBuffer->GetHeight());
 868       }
 869       surfaceOrientation = 0;
 870     }
 871     else // No Offscreen frame buffer rendering
 872     {
 873       // Check whether a viewport is specified, otherwise the full surface size is used
 874       if(instruction.mIsViewportSet)
 875       {
 876         // For Viewport the lower-left corner is (0,0)
 877         const int32_t y = (surfaceRect.height - instruction.mViewport.height) - instruction.mViewport.y;
 878         viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
 879       }
 880       else
 881       {
 882         viewportRect = surfaceRect;
 883       }
 884     }
 885
 886     // Set surface orientation
 887     // @todo Inform graphics impl by another route.
 888     // was: mImpl->currentContext->SetSurfaceOrientation(surfaceOrientation);
 889
 890     /*** Clear region of framebuffer or surface before drawing ***/
 891     bool clearFullFrameRect = (surfaceRect == viewportRect);
 892     if(instruction.mFrameBuffer != nullptr)
 893     {
 894       Viewport frameRect(0, 0, instruction.mFrameBuffer->GetWidth(), instruction.mFrameBuffer->GetHeight());
 895       clearFullFrameRect = (frameRect == viewportRect);
 896     }
 897
 898     if(!clippingRect.IsEmpty())
 899     {
 900       if(!clippingRect.Intersect(viewportRect))
 901       {
 902         DALI_LOG_ERROR("Invalid clipping rect %d %d %d %d\n", clippingRect.x, clippingRect.y, clippingRect.width, clippingRect.height);
 903         clippingRect = Rect<int>();
 904       }
 905       clearFullFrameRect = false;
 906     }
 907
 908     Graphics::Rect2D scissorArea{viewportRect.x, viewportRect.y, uint32_t(viewportRect.width), uint32_t(viewportRect.height)};
 909     if(instruction.mIsClearColorSet)
 910     {
 911       if(!clearFullFrameRect)
 912       {
 913         if(!clippingRect.IsEmpty())
 914         {
 915           scissorArea = {clippingRect.x, clippingRect.y, uint32_t(clippingRect.width), uint32_t(clippingRect.height)};
 916         }
 917       }
 918     }
 919
 920     // Scissor's value should be set based on the default system coordinates.
 921     // When the surface is rotated, the input values already were set with the rotated angle.
 922     // So, re-calculation is needed.
 923     scissorArea = RecalculateScissorArea(scissorArea, surfaceOrientation, viewportRect);
 924
 925     // Begin render pass
 926     mainCommandBuffer->BeginRenderPass(
 927       currentRenderPass,
 928       currentRenderTarget,
 929       scissorArea,
 930       currentClearValues);
 931
 932     mainCommandBuffer->SetViewport({float(viewportRect.x),
 933                                     float(viewportRect.y),
 934                                     float(viewportRect.width),
 935                                     float(viewportRect.height)});
 936
 937     // Clear the list of bound textures
 938     mImpl->boundTextures.Clear();
 939
 940     mImpl->renderAlgorithms.ProcessRenderInstruction(
 941       instruction,
 942       mImpl->renderBufferIndex,
 943       depthBufferAvailable,
 944       stencilBufferAvailable,
 945       mImpl->boundTextures,
 946       viewportRect,
 947       clippingRect,
 948       surfaceOrientation);
 949
 950     Graphics::SyncObject* syncObject{nullptr};
 951     // If the render instruction has an associated render tracker (owned separately)
 952     // and framebuffer, create a one shot sync object, and use it to determine when
 953     // the render pass has finished executing on GPU.
 954     if(instruction.mRenderTracker && instruction.mFrameBuffer)
 955     {
 956       syncObject                 = instruction.mRenderTracker->CreateSyncObject(mImpl->graphicsController);
 957       instruction.mRenderTracker = nullptr;
 958     }
 959     mainCommandBuffer->EndRenderPass(syncObject);
 960   }
 961   mImpl->renderAlgorithms.SubmitCommandBuffer();
 962
 963   std::sort(targetstoPresent.begin(), targetstoPresent.end());
 964
 965   Graphics::RenderTarget* rt = nullptr;
 966   for(auto& target : targetstoPresent)
 967   {
 968     if(target != rt)
 969     {
 970       mImpl->graphicsController.PresentRenderTarget(target);
 971       rt = target;
 972     }
 973   }
 974 }
 975
 976 void RenderManager::PostRender(bool uploadOnly)
 977 {
 978   // Notify RenderGeometries that rendering has finished
 979   for(auto&& iter : mImpl->geometryContainer)
 980   {
 981     iter->OnRenderFinished();
 982   }
 983
 984   mImpl->UpdateTrackers();
 985
 986   uint32_t count = 0u;
 987   for(auto& scene : mImpl->sceneContainer)
 988   {
 989     count += scene->GetRenderInstructions().Count(mImpl->renderBufferIndex);
 990   }
 991
 992   const bool haveInstructions = count > 0u;
 993
 994   // If this frame was rendered due to instructions existing, we mark this so we know to clear the next frame.
 995   mImpl->lastFrameWasRendered = haveInstructions;
 996
 997   /**
 998    * The rendering has finished; swap to the next buffer.
 999    * Ideally the update has just finished using this buffer; otherwise the render thread
1000    * should block until the update has finished.
1001    */
1002   mImpl->renderBufferIndex = (0 != mImpl->renderBufferIndex) ? 0 : 1;
1003
1004   DALI_PRINT_RENDER_END();
1005 }
1006
1007 } // namespace SceneGraph
1008
1009 } // namespace Internal
1010
1011 } // namespace Dali