2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include <dali/internal/render/common/render-manager.h>
25 #include <dali/devel-api/threading/thread-pool.h>
26 #include <dali/integration-api/core.h>
28 #include <dali/internal/event/common/scene-impl.h>
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>
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>
55 #if defined(DEBUG_ENABLED)
58 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_RENDER_MANAGER");
59 } // unnamed namespace
64 inline Graphics::Rect2D RecalculateScissorArea(Graphics::Rect2D scissorArea, int orientation, Rect<int32_t> viewportRect)
66 Graphics::Rect2D newScissorArea;
70 newScissorArea.x = viewportRect.height - (scissorArea.y + scissorArea.height);
71 newScissorArea.y = scissorArea.x;
72 newScissorArea.width = scissorArea.height;
73 newScissorArea.height = scissorArea.width;
75 else if(orientation == 180)
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;
82 else if(orientation == 270)
84 newScissorArea.x = scissorArea.y;
85 newScissorArea.y = viewportRect.width - (scissorArea.x + scissorArea.width);
86 newScissorArea.width = scissorArea.height;
87 newScissorArea.height = scissorArea.width;
91 newScissorArea.x = scissorArea.x;
92 newScissorArea.y = scissorArea.y;
93 newScissorArea.width = scissorArea.width;
94 newScissorArea.height = scissorArea.height;
96 return newScissorArea;
100 * Structure to contain internal data
102 struct RenderManager::Impl
104 Impl(Graphics::Controller& graphicsController,
105 Integration::DepthBufferAvailable depthBufferAvailableParam,
106 Integration::StencilBufferAvailable stencilBufferAvailableParam,
107 Integration::PartialUpdateAvailable partialUpdateAvailableParam)
108 : graphicsController(graphicsController),
110 renderAlgorithms(graphicsController),
112 renderBufferIndex(SceneGraphBuffers::INITIAL_UPDATE_BUFFER_INDEX),
116 frameBufferContainer(),
117 lastFrameWasRendered(false),
118 programController(graphicsController),
119 shaderCache(graphicsController),
120 depthBufferAvailable(depthBufferAvailableParam),
121 stencilBufferAvailable(stencilBufferAvailableParam),
122 partialUpdateAvailable(partialUpdateAvailableParam)
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);
128 uniformBufferManager = std::make_unique<Render::UniformBufferManager>(&graphicsController);
129 pipelineCache = std::make_unique<Render::PipelineCache>(graphicsController);
134 threadPool.reset(nullptr); // reset now to maintain correct destruction order
137 void AddRenderTracker(Render::RenderTracker* renderTracker)
139 DALI_ASSERT_DEBUG(renderTracker != nullptr);
140 mRenderTrackers.PushBack(renderTracker);
143 void RemoveRenderTracker(Render::RenderTracker* renderTracker)
145 mRenderTrackers.EraseObject(renderTracker);
148 void UpdateTrackers()
150 for(auto&& iter : mRenderTrackers)
152 iter->PollSyncObject();
156 // the order is important for destruction,
157 Graphics::Controller& graphicsController;
158 RenderQueue renderQueue; ///< A message queue for receiving messages from the update-thread.
160 std::vector<SceneGraph::Scene*> sceneContainer; ///< List of pointers to the scene graph objects of the scenes
162 Render::RenderAlgorithms renderAlgorithms; ///< The RenderAlgorithms object is used to action the renders required by a RenderInstruction
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
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
174 bool lastFrameWasRendered; ///< Keeps track of the last frame being rendered due to having render instructions
176 OwnerContainer<Render::RenderTracker*> mRenderTrackers; ///< List of render trackers
178 ProgramController programController; ///< Owner of the programs
179 Render::ShaderCache shaderCache; ///< The cache for the graphics shaders
181 std::unique_ptr<Render::UniformBufferManager> uniformBufferManager; ///< The uniform buffer manager
182 std::unique_ptr<Render::PipelineCache> pipelineCache;
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
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
193 RenderManager* RenderManager::New(Graphics::Controller& graphicsController,
194 Integration::DepthBufferAvailable depthBufferAvailable,
195 Integration::StencilBufferAvailable stencilBufferAvailable,
196 Integration::PartialUpdateAvailable partialUpdateAvailable)
198 auto* manager = new RenderManager;
199 manager->mImpl = new Impl(graphicsController,
200 depthBufferAvailable,
201 stencilBufferAvailable,
202 partialUpdateAvailable);
206 RenderManager::RenderManager()
211 RenderManager::~RenderManager()
216 RenderQueue& RenderManager::GetRenderQueue()
218 return mImpl->renderQueue;
221 void RenderManager::SetShaderSaver(ShaderSaver& upstream)
225 void RenderManager::AddRenderer(OwnerPointer<Render::Renderer>& renderer)
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()));
230 mImpl->rendererContainer.PushBack(renderer.Release());
233 void RenderManager::RemoveRenderer(Render::Renderer* renderer)
235 mImpl->rendererContainer.EraseObject(renderer);
238 void RenderManager::AddSampler(OwnerPointer<Render::Sampler>& sampler)
240 sampler->Initialize(mImpl->graphicsController);
241 mImpl->samplerContainer.PushBack(sampler.Release());
244 void RenderManager::RemoveSampler(Render::Sampler* sampler)
246 mImpl->samplerContainer.EraseObject(sampler);
249 void RenderManager::AddTexture(OwnerPointer<Render::Texture>& texture)
251 texture->Initialize(mImpl->graphicsController);
252 mImpl->textureContainer.PushBack(texture.Release());
255 void RenderManager::RemoveTexture(Render::Texture* texture)
257 DALI_ASSERT_DEBUG(NULL != texture);
259 // Find the texture, use std::find so we can do the erase safely
260 auto iter = std::find(mImpl->textureContainer.begin(), mImpl->textureContainer.end(), texture);
262 if(iter != mImpl->textureContainer.end())
265 mImpl->textureContainer.Erase(iter); // Texture found; now destroy it
269 void RenderManager::UploadTexture(Render::Texture* texture, PixelDataPtr pixelData, const Texture::UploadParams& params)
271 texture->Upload(pixelData, params);
274 void RenderManager::GenerateMipmaps(Render::Texture* texture)
276 texture->GenerateMipmaps();
279 void RenderManager::SetFilterMode(Render::Sampler* sampler, uint32_t minFilterMode, uint32_t magFilterMode)
281 sampler->SetFilterMode(static_cast<Dali::FilterMode::Type>(minFilterMode),
282 static_cast<Dali::FilterMode::Type>(magFilterMode));
285 void RenderManager::SetWrapMode(Render::Sampler* sampler, uint32_t rWrapMode, uint32_t sWrapMode, uint32_t tWrapMode)
287 sampler->SetWrapMode(static_cast<Dali::WrapMode::Type>(rWrapMode),
288 static_cast<Dali::WrapMode::Type>(sWrapMode),
289 static_cast<Dali::WrapMode::Type>(tWrapMode));
292 void RenderManager::AddFrameBuffer(OwnerPointer<Render::FrameBuffer>& frameBuffer)
294 Render::FrameBuffer* frameBufferPtr = frameBuffer.Release();
295 mImpl->frameBufferContainer.PushBack(frameBufferPtr);
296 frameBufferPtr->Initialize(mImpl->graphicsController);
299 void RenderManager::RemoveFrameBuffer(Render::FrameBuffer* frameBuffer)
301 DALI_ASSERT_DEBUG(nullptr != frameBuffer);
303 // Find the framebuffer, use std:find so we can safely do the erase
304 auto iter = std::find(mImpl->frameBufferContainer.begin(), mImpl->frameBufferContainer.end(), frameBuffer);
306 if(iter != mImpl->frameBufferContainer.end())
308 frameBuffer->Destroy();
309 mImpl->frameBufferContainer.Erase(iter); // frameBuffer found; now destroy it
313 void RenderManager::InitializeScene(SceneGraph::Scene* scene)
315 scene->Initialize(mImpl->graphicsController, mImpl->depthBufferAvailable, mImpl->stencilBufferAvailable);
316 mImpl->sceneContainer.push_back(scene);
319 void RenderManager::UninitializeScene(SceneGraph::Scene* scene)
321 auto iter = std::find(mImpl->sceneContainer.begin(), mImpl->sceneContainer.end(), scene);
322 if(iter != mImpl->sceneContainer.end())
324 mImpl->sceneContainer.erase(iter);
328 void RenderManager::SurfaceReplaced(SceneGraph::Scene* scene)
330 scene->Initialize(mImpl->graphicsController, mImpl->depthBufferAvailable, mImpl->stencilBufferAvailable);
333 void RenderManager::AttachColorTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel, uint32_t layer)
335 frameBuffer->AttachColorTexture(texture, mipmapLevel, layer);
338 void RenderManager::AttachDepthTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel)
340 frameBuffer->AttachDepthTexture(texture, mipmapLevel);
343 void RenderManager::AttachDepthStencilTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel)
345 frameBuffer->AttachDepthStencilTexture(texture, mipmapLevel);
348 void RenderManager::AddVertexBuffer(OwnerPointer<Render::VertexBuffer>& vertexBuffer)
350 mImpl->vertexBufferContainer.PushBack(vertexBuffer.Release());
353 void RenderManager::RemoveVertexBuffer(Render::VertexBuffer* vertexBuffer)
355 mImpl->vertexBufferContainer.EraseObject(vertexBuffer);
358 void RenderManager::SetVertexBufferFormat(Render::VertexBuffer* vertexBuffer, OwnerPointer<Render::VertexBuffer::Format>& format)
360 vertexBuffer->SetFormat(format.Release());
363 void RenderManager::SetVertexBufferData(Render::VertexBuffer* vertexBuffer, OwnerPointer<Vector<uint8_t>>& data, uint32_t size)
365 vertexBuffer->SetData(data.Release(), size);
368 void RenderManager::SetIndexBuffer(Render::Geometry* geometry, Dali::Vector<uint16_t>& indices)
370 geometry->SetIndexBuffer(indices);
373 void RenderManager::AddGeometry(OwnerPointer<Render::Geometry>& geometry)
375 mImpl->geometryContainer.PushBack(geometry.Release());
378 void RenderManager::RemoveGeometry(Render::Geometry* geometry)
380 auto iter = std::find(mImpl->geometryContainer.begin(), mImpl->geometryContainer.end(), geometry);
382 if(iter != mImpl->geometryContainer.end())
384 mImpl->geometryContainer.Erase(iter);
388 void RenderManager::AttachVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer)
390 DALI_ASSERT_DEBUG(nullptr != geometry);
393 for(auto&& iter : mImpl->geometryContainer)
397 iter->AddVertexBuffer(vertexBuffer);
403 void RenderManager::RemoveVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer)
405 DALI_ASSERT_DEBUG(nullptr != geometry);
408 for(auto&& iter : mImpl->geometryContainer)
412 iter->RemoveVertexBuffer(vertexBuffer);
418 void RenderManager::SetGeometryType(Render::Geometry* geometry, uint32_t geometryType)
420 geometry->SetType(Render::Geometry::Type(geometryType));
423 void RenderManager::AddRenderTracker(Render::RenderTracker* renderTracker)
425 mImpl->AddRenderTracker(renderTracker);
428 void RenderManager::RemoveRenderTracker(Render::RenderTracker* renderTracker)
430 mImpl->RemoveRenderTracker(renderTracker);
433 void RenderManager::PreRender(Integration::RenderStatus& status, bool forceClear, bool uploadOnly)
435 DALI_PRINT_RENDER_START(mImpl->renderBufferIndex);
438 mImpl->uniformBufferManager->GetUniformBufferViewPool(mImpl->renderBufferIndex)->Rollback();
440 // Increment the frame count at the beginning of each frame
443 // Process messages queued during previous update
444 mImpl->renderQueue.ProcessMessages(mImpl->renderBufferIndex);
447 for(auto& i : mImpl->sceneContainer)
449 count += i->GetRenderInstructions().Count(mImpl->renderBufferIndex);
452 const bool haveInstructions = count > 0u;
454 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");
456 // Only render if we have instructions to render, or the last frame was rendered (and therefore a clear is required).
457 if(haveInstructions || mImpl->lastFrameWasRendered || forceClear)
459 DALI_LOG_INFO(gLogFilter, Debug::General, "Render: Processing\n");
461 // Upload the geometries
462 for(auto&& geom : mImpl->geometryContainer)
464 geom->Upload(mImpl->graphicsController);
469 void RenderManager::PreRender(Integration::Scene& scene, std::vector<Rect<int>>& damagedRects)
471 if(mImpl->partialUpdateAvailable != Integration::PartialUpdateAvailable::TRUE)
476 Internal::Scene& sceneInternal = GetImplementation(scene);
477 SceneGraph::Scene* sceneObject = sceneInternal.GetSceneObject();
479 if(sceneObject->IsRenderingSkipped())
481 // We don't need to calculate dirty rects
485 class DamagedRectsCleaner
488 explicit DamagedRectsCleaner(std::vector<Rect<int>>& damagedRects, Rect<int>& surfaceRect)
489 : mDamagedRects(damagedRects),
490 mSurfaceRect(surfaceRect),
495 void SetCleanOnReturn(bool cleanOnReturn)
497 mCleanOnReturn = cleanOnReturn;
500 ~DamagedRectsCleaner()
504 mDamagedRects.clear();
505 mDamagedRects.push_back(mSurfaceRect);
510 std::vector<Rect<int>>& mDamagedRects;
511 Rect<int> mSurfaceRect;
515 Rect<int32_t> surfaceRect = sceneObject->GetSurfaceRect();
517 // Clean collected dirty/damaged rects on exit if 3d layer or 3d node or other conditions.
518 DamagedRectsCleaner damagedRectCleaner(damagedRects, surfaceRect);
520 // Mark previous dirty rects in the sorted array. The array is already sorted by node and renderer, frame number.
521 // so you don't need to sort: std::stable_sort(itemsDirtyRects.begin(), itemsDirtyRects.end());
522 std::vector<DirtyRect>& itemsDirtyRects = sceneInternal.GetItemsDirtyRects();
523 for(DirtyRect& dirtyRect : itemsDirtyRects)
525 dirtyRect.visited = false;
528 uint32_t instructionCount = sceneObject->GetRenderInstructions().Count(mImpl->renderBufferIndex);
529 for(uint32_t i = 0; i < instructionCount; ++i)
531 RenderInstruction& instruction = sceneObject->GetRenderInstructions().At(mImpl->renderBufferIndex, i);
533 if(instruction.mFrameBuffer)
535 return; // TODO: reset, we don't deal with render tasks with framebuffers (for now)
538 const Camera* camera = instruction.GetCamera();
539 if(camera->mType == Camera::DEFAULT_TYPE && camera->mTargetPosition == Camera::DEFAULT_TARGET_POSITION)
541 const Node* node = instruction.GetCamera()->GetNode();
546 Quaternion orientation;
547 node->GetWorldMatrix(mImpl->renderBufferIndex).GetTransformComponents(position, orientation, scale);
549 Vector3 orientationAxis;
550 Radian orientationAngle;
551 orientation.ToAxisAngle(orientationAxis, orientationAngle);
553 if(position.x > Math::MACHINE_EPSILON_10000 ||
554 position.y > Math::MACHINE_EPSILON_10000 ||
555 orientationAxis != Vector3(0.0f, 1.0f, 0.0f) ||
556 orientationAngle != ANGLE_180 ||
557 scale != Vector3(1.0f, 1.0f, 1.0f))
568 Rect<int32_t> viewportRect;
569 if(instruction.mIsViewportSet)
571 const int32_t y = (surfaceRect.height - instruction.mViewport.height) - instruction.mViewport.y;
572 viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
573 if(viewportRect.IsEmpty() || !viewportRect.IsValid())
575 return; // just skip funny use cases for now, empty viewport means it is set somewhere else
580 viewportRect = surfaceRect;
583 const Matrix* viewMatrix = instruction.GetViewMatrix(mImpl->renderBufferIndex);
584 const Matrix* projectionMatrix = instruction.GetProjectionMatrix(mImpl->renderBufferIndex);
585 if(viewMatrix && projectionMatrix)
587 const RenderListContainer::SizeType count = instruction.RenderListCount();
588 for(RenderListContainer::SizeType index = 0u; index < count; ++index)
590 const RenderList* renderList = instruction.GetRenderList(index);
593 if(!renderList->IsEmpty())
595 const std::size_t listCount = renderList->Count();
596 for(uint32_t listIndex = 0u; listIndex < listCount; ++listIndex)
598 RenderItem& item = renderList->GetItem(listIndex);
599 // If the item does 3D transformation, do early exit and clean the damaged rect array
600 if(item.mUpdateSize == Vector3::ZERO)
606 DirtyRect dirtyRect(item.mNode, item.mRenderer, mImpl->frameCount, rect);
607 // If the item refers to updated node or renderer.
608 if(item.mIsUpdated ||
610 (item.mNode->Updated() || (item.mRenderer && item.mRenderer->Updated(mImpl->renderBufferIndex, item.mNode)))))
612 item.mIsUpdated = false;
614 rect = RenderItem::CalculateViewportSpaceAABB(item.mModelViewMatrix, item.mUpdateSize, viewportRect.width, viewportRect.height);
615 if(rect.IsValid() && rect.Intersect(viewportRect) && !rect.IsEmpty())
617 const int left = rect.x;
618 const int top = rect.y;
619 const int right = rect.x + rect.width;
620 const int bottom = rect.y + rect.height;
621 rect.x = (left / 16) * 16;
622 rect.y = (top / 16) * 16;
623 rect.width = ((right + 16) / 16) * 16 - rect.x;
624 rect.height = ((bottom + 16) / 16) * 16 - rect.y;
626 // Found valid dirty rect.
627 // 1. Insert it in the sorted array of the dirty rects.
628 // 2. Mark the related dirty rects as visited so they will not be removed below.
629 // 3. Keep only last 3 dirty rects for the same node and renderer (Tizen uses 3 back buffers, Ubuntu 1).
630 dirtyRect.rect = rect;
631 auto dirtyRectPos = std::lower_bound(itemsDirtyRects.begin(), itemsDirtyRects.end(), dirtyRect);
632 dirtyRectPos = itemsDirtyRects.insert(dirtyRectPos, dirtyRect);
635 while(++dirtyRectPos != itemsDirtyRects.end())
637 if(dirtyRectPos->node != item.mNode || dirtyRectPos->renderer != item.mRenderer)
642 dirtyRectPos->visited = true;
643 Rect<int>& dirtRect = dirtyRectPos->rect;
644 rect.Merge(dirtRect);
647 if(c > 3) // no more then 3 previous rects
649 itemsDirtyRects.erase(dirtyRectPos);
654 damagedRects.push_back(rect);
659 // 1. The item is not dirty, the node and renderer referenced by the item are still exist.
660 // 2. Mark the related dirty rects as visited so they will not be removed below.
661 auto dirtyRectPos = std::lower_bound(itemsDirtyRects.begin(), itemsDirtyRects.end(), dirtyRect);
662 while(dirtyRectPos != itemsDirtyRects.end())
664 if(dirtyRectPos->node != item.mNode || dirtyRectPos->renderer != item.mRenderer)
669 dirtyRectPos->visited = true;
676 // Reset updated flag from the root
677 Layer* sourceLayer = renderList->GetSourceLayer();
680 sourceLayer->SetUpdatedTree(false);
687 // Check removed nodes or removed renderers dirty rects
688 auto i = itemsDirtyRects.begin();
689 auto j = itemsDirtyRects.begin();
690 while(i != itemsDirtyRects.end())
698 Rect<int>& dirtRect = i->rect;
699 damagedRects.push_back(dirtRect);
704 itemsDirtyRects.resize(j - itemsDirtyRects.begin());
705 damagedRectCleaner.SetCleanOnReturn(false);
708 void RenderManager::RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo)
710 Rect<int> clippingRect;
711 RenderScene(status, scene, renderToFbo, clippingRect);
714 void RenderManager::RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo, Rect<int>& clippingRect)
716 if(mImpl->partialUpdateAvailable == Integration::PartialUpdateAvailable::TRUE && !renderToFbo && clippingRect.IsEmpty())
718 // ClippingRect is empty. Skip rendering
722 // Reset main algorithms command buffer
723 mImpl->renderAlgorithms.ResetCommandBuffer();
725 auto mainCommandBuffer = mImpl->renderAlgorithms.GetMainCommandBuffer();
727 Internal::Scene& sceneInternal = GetImplementation(scene);
728 SceneGraph::Scene* sceneObject = sceneInternal.GetSceneObject();
730 uint32_t count = sceneObject->GetRenderInstructions().Count(mImpl->renderBufferIndex);
732 std::vector<Graphics::RenderTarget*> targetstoPresent;
734 Rect<int32_t> surfaceRect = sceneObject->GetSurfaceRect();
735 if(clippingRect == surfaceRect)
737 // Full rendering case
738 // Make clippingRect empty because we're doing full rendering now if the clippingRect is empty.
739 // To reduce side effects, keep this logic now.
740 clippingRect = Rect<int>();
743 for(uint32_t i = 0; i < count; ++i)
745 RenderInstruction& instruction = sceneObject->GetRenderInstructions().At(mImpl->renderBufferIndex, i);
747 if((renderToFbo && !instruction.mFrameBuffer) || (!renderToFbo && instruction.mFrameBuffer))
752 // Mark that we will require a post-render step to be performed (includes swap-buffers).
753 status.SetNeedsPostRender(true);
755 Rect<int32_t> viewportRect;
757 int32_t surfaceOrientation = sceneObject->GetSurfaceOrientation();
759 // @todo Should these be part of scene?
760 Integration::DepthBufferAvailable depthBufferAvailable = mImpl->depthBufferAvailable;
761 Integration::StencilBufferAvailable stencilBufferAvailable = mImpl->stencilBufferAvailable;
763 Graphics::RenderTarget* currentRenderTarget = nullptr;
764 Graphics::RenderPass* currentRenderPass = nullptr;
765 std::vector<Graphics::ClearValue> currentClearValues{};
767 if(instruction.mFrameBuffer)
769 // Ensure graphics framebuffer is created, bind attachments and create render passes
770 // Only happens once per framebuffer. If the create fails, e.g. no attachments yet,
771 // then don't render to this framebuffer.
772 if(!instruction.mFrameBuffer->GetGraphicsObject())
774 const bool created = instruction.mFrameBuffer->CreateGraphicsObjects();
781 auto& clearValues = instruction.mFrameBuffer->GetGraphicsRenderPassClearValues();
783 // Set the clear color for first color attachment
784 if(instruction.mIsClearColorSet && !clearValues.empty())
786 clearValues[0].color = {
787 instruction.mClearColor.r,
788 instruction.mClearColor.g,
789 instruction.mClearColor.b,
790 instruction.mClearColor.a};
793 currentClearValues = clearValues;
795 auto loadOp = instruction.mIsClearColorSet ? Graphics::AttachmentLoadOp::CLEAR : Graphics::AttachmentLoadOp::LOAD;
798 currentRenderTarget = instruction.mFrameBuffer->GetGraphicsRenderTarget();
799 currentRenderPass = instruction.mFrameBuffer->GetGraphicsRenderPass(loadOp, Graphics::AttachmentStoreOp::STORE);
801 else // no framebuffer
804 auto& clearValues = sceneObject->GetGraphicsRenderPassClearValues();
806 if(instruction.mIsClearColorSet)
808 clearValues[0].color = {
809 instruction.mClearColor.r,
810 instruction.mClearColor.g,
811 instruction.mClearColor.b,
812 instruction.mClearColor.a};
815 currentClearValues = clearValues;
817 // @todo SceneObject should already have the depth clear / stencil clear in the clearValues array.
818 // if the window has a depth/stencil buffer.
819 if((depthBufferAvailable == Integration::DepthBufferAvailable::TRUE ||
820 stencilBufferAvailable == Integration::StencilBufferAvailable::TRUE) &&
821 (currentClearValues.size() <= 1))
823 currentClearValues.emplace_back();
824 currentClearValues.back().depthStencil.depth = 0;
825 currentClearValues.back().depthStencil.stencil = 0;
828 auto loadOp = instruction.mIsClearColorSet ? Graphics::AttachmentLoadOp::CLEAR : Graphics::AttachmentLoadOp::LOAD;
830 currentRenderTarget = sceneObject->GetSurfaceRenderTarget();
831 currentRenderPass = sceneObject->GetGraphicsRenderPass(loadOp, Graphics::AttachmentStoreOp::STORE);
834 targetstoPresent.emplace_back(currentRenderTarget);
836 // reset the program matrices for all programs once per frame
837 // this ensures we will set view and projection matrix once per program per camera
838 mImpl->programController.ResetProgramMatrices();
840 if(instruction.mFrameBuffer)
842 // For each offscreen buffer, update the dependency list with the new texture id used by this frame buffer.
843 for(unsigned int i0 = 0, i1 = instruction.mFrameBuffer->GetColorAttachmentCount(); i0 < i1; ++i0)
845 mImpl->textureDependencyList.PushBack(instruction.mFrameBuffer->GetTexture(i0));
849 if(!instruction.mIgnoreRenderToFbo && (instruction.mFrameBuffer != nullptr))
851 // Offscreen buffer rendering
852 if(instruction.mIsViewportSet)
854 // For Viewport the lower-left corner is (0,0)
855 const int32_t y = (instruction.mFrameBuffer->GetHeight() - instruction.mViewport.height) - instruction.mViewport.y;
856 viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
860 viewportRect.Set(0, 0, instruction.mFrameBuffer->GetWidth(), instruction.mFrameBuffer->GetHeight());
862 surfaceOrientation = 0;
864 else // No Offscreen frame buffer rendering
866 // Check whether a viewport is specified, otherwise the full surface size is used
867 if(instruction.mIsViewportSet)
869 // For Viewport the lower-left corner is (0,0)
870 const int32_t y = (surfaceRect.height - instruction.mViewport.height) - instruction.mViewport.y;
871 viewportRect.Set(instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height);
875 viewportRect = surfaceRect;
879 // Set surface orientation
880 // @todo Inform graphics impl by another route.
881 // was: mImpl->currentContext->SetSurfaceOrientation(surfaceOrientation);
883 /*** Clear region of framebuffer or surface before drawing ***/
884 bool clearFullFrameRect = (surfaceRect == viewportRect);
885 if(instruction.mFrameBuffer != nullptr)
887 Viewport frameRect(0, 0, instruction.mFrameBuffer->GetWidth(), instruction.mFrameBuffer->GetHeight());
888 clearFullFrameRect = (frameRect == viewportRect);
891 if(!clippingRect.IsEmpty())
893 if(!clippingRect.Intersect(viewportRect))
895 DALI_LOG_ERROR("Invalid clipping rect %d %d %d %d\n", clippingRect.x, clippingRect.y, clippingRect.width, clippingRect.height);
896 clippingRect = Rect<int>();
898 clearFullFrameRect = false;
901 Graphics::Rect2D scissorArea{viewportRect.x, viewportRect.y, uint32_t(viewportRect.width), uint32_t(viewportRect.height)};
902 if(instruction.mIsClearColorSet)
904 if(!clearFullFrameRect)
906 if(!clippingRect.IsEmpty())
908 scissorArea = {clippingRect.x, clippingRect.y, uint32_t(clippingRect.width), uint32_t(clippingRect.height)};
913 // Scissor's value should be set based on the default system coordinates.
914 // When the surface is rotated, the input values already were set with the rotated angle.
915 // So, re-calculation is needed.
916 scissorArea = RecalculateScissorArea(scissorArea, surfaceOrientation, viewportRect);
919 mainCommandBuffer->BeginRenderPass(
925 mainCommandBuffer->SetViewport({float(viewportRect.x),
926 float(viewportRect.y),
927 float(viewportRect.width),
928 float(viewportRect.height)});
930 // Clear the list of bound textures
931 mImpl->boundTextures.Clear();
933 mImpl->renderAlgorithms.ProcessRenderInstruction(
935 mImpl->renderBufferIndex,
936 depthBufferAvailable,
937 stencilBufferAvailable,
938 mImpl->boundTextures,
943 Graphics::SyncObject* syncObject{nullptr};
944 // If the render instruction has an associated render tracker (owned separately)
945 // and framebuffer, create a one shot sync object, and use it to determine when
946 // the render pass has finished executing on GPU.
947 if(instruction.mRenderTracker && instruction.mFrameBuffer)
949 syncObject = instruction.mRenderTracker->CreateSyncObject(mImpl->graphicsController);
950 instruction.mRenderTracker = nullptr;
952 mainCommandBuffer->EndRenderPass(syncObject);
954 mImpl->renderAlgorithms.SubmitCommandBuffer();
956 std::sort(targetstoPresent.begin(), targetstoPresent.end());
958 Graphics::RenderTarget* rt = nullptr;
959 for(auto& target : targetstoPresent)
963 mImpl->graphicsController.PresentRenderTarget(target);
969 void RenderManager::PostRender(bool uploadOnly)
971 // Notify RenderGeometries that rendering has finished
972 for(auto&& iter : mImpl->geometryContainer)
974 iter->OnRenderFinished();
977 mImpl->UpdateTrackers();
980 for(auto& scene : mImpl->sceneContainer)
982 count += scene->GetRenderInstructions().Count(mImpl->renderBufferIndex);
985 const bool haveInstructions = count > 0u;
987 // If this frame was rendered due to instructions existing, we mark this so we know to clear the next frame.
988 mImpl->lastFrameWasRendered = haveInstructions;
991 * The rendering has finished; swap to the next buffer.
992 * Ideally the update has just finished using this buffer; otherwise the render thread
993 * should block until the update has finished.
995 mImpl->renderBufferIndex = (0 != mImpl->renderBufferIndex) ? 0 : 1;
997 DALI_PRINT_RENDER_END();
1000 } // namespace SceneGraph
1002 } // namespace Internal