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