2 * Copyright (c) 2023 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/update/nodes/node.h>
22 #include <dali/internal/common/internal-constants.h>
23 #include <dali/internal/common/memory-pool-object-allocator.h>
24 #include <dali/internal/update/common/discard-queue.h>
25 #include <dali/public-api/common/constants.h>
26 #include <dali/public-api/common/dali-common.h>
28 #include <dali/internal/update/common/resetter-manager.h> ///< For AddInitializeResetter
32 // Memory pool used to allocate new nodes. Memory used by this pool will be released when process dies
33 // or DALI library is unloaded
34 Dali::Internal::MemoryPoolObjectAllocator<Dali::Internal::SceneGraph::Node>& GetNodeMemoryPool()
36 static Dali::Internal::MemoryPoolObjectAllocator<Dali::Internal::SceneGraph::Node> gNodeMemoryPool;
37 return gNodeMemoryPool;
40 // keep track of nodes alive, to ensure we have 0 when the process exits or DALi library is unloaded
41 int32_t gNodeCount = 0;
43 // Called when the process is about to exit, Node count should be zero at this point.
44 void __attribute__((destructor)) ShutDown(void)
46 DALI_ASSERT_DEBUG((gNodeCount == 0) && "Node memory leak");
49 } // Unnamed namespace
57 const ColorMode Node::DEFAULT_COLOR_MODE(USE_OWN_MULTIPLY_PARENT_ALPHA);
59 uint32_t Node::mNodeCounter = 0; ///< A counter to provide unique node ids, up-to 4 billion
63 return new(GetNodeMemoryPool().AllocateRawThreadSafe()) Node;
66 void Node::Delete(Node* node)
68 // check we have a node not a derived node
69 if(!node->mIsLayer && !node->mIsCamera)
71 // Manually call the destructor
74 // Mark the memory it used as free in the memory pool
75 GetNodeMemoryPool().FreeThreadSafe(node);
79 // not in the pool, just delete it.
85 : mOrientation(), // Initialized to identity by default
86 mWorldPosition(TRANSFORM_PROPERTY_WORLD_POSITION, Vector3(0.0f, 0.0f, 0.0f)), // Zero initialized by default
87 mWorldScale(TRANSFORM_PROPERTY_WORLD_SCALE, Vector3(1.0f, 1.0f, 1.0f)),
88 mWorldOrientation(), // Initialized to identity by default
93 mWorldColor(Color::WHITE),
94 mUpdateAreaHint(Vector4::ZERO),
95 mClippingSortModifier(0u),
98 mExclusiveRenderTask(nullptr),
103 mDirtyFlags(NodePropertyFlags::ALL),
104 mDrawMode(DrawMode::NORMAL),
105 mColorMode(DEFAULT_COLOR_MODE),
106 mClippingMode(ClippingMode::DISABLED),
110 mPositionUsesAnchorPoint(true),
112 mUpdateAreaChanged(false),
113 mUseTextureUpdateArea(false)
122 if(mTransformManagerData.Id() != INVALID_TRANSFORM_ID)
124 mTransformManagerData.Manager()->RemoveTransform(mTransformManagerData.Id());
132 void Node::OnDestroy()
134 // Animators, Constraints etc. should be disconnected from the child's properties.
135 PropertyOwner::Destroy();
138 uint32_t Node::GetId() const
143 void Node::CreateTransform(SceneGraph::TransformManager* transformManager)
145 // Create a new transform
146 mTransformManagerData.mManager = transformManager;
147 TransformId createdTransformId = transformManager->CreateTransform();
149 // Set whether the position should use the anchor point
150 transformManager->SetPositionUsesAnchorPoint(createdTransformId, mPositionUsesAnchorPoint);
152 // Set TransformId after initialize done.
153 mTransformManagerData.mId = createdTransformId;
156 void Node::SetRoot(bool isRoot)
158 DALI_ASSERT_DEBUG(!isRoot || mParent == NULL); // Root nodes cannot have a parent
163 bool Node::IsAnimationPossible() const
165 return mIsConnectedToSceneGraph;
168 void Node::AddInitializeResetter(ResetterManager& manager) const
170 manager.AddNodeResetter(*this);
173 void Node::ConnectChild(Node* childNode)
175 DALI_ASSERT_ALWAYS(this != childNode);
176 DALI_ASSERT_ALWAYS(IsRoot() || nullptr != mParent); // Parent should be connected first
177 DALI_ASSERT_ALWAYS(!childNode->IsRoot() && nullptr == childNode->GetParent()); // Child should be disconnected
179 childNode->SetParent(*this);
181 // Everything should be reinherited when reconnected to scene-graph
182 childNode->SetAllDirtyFlags();
184 // Add the node to the end of the child list.
185 mChildren.PushBack(childNode);
187 // Inform property observers of new connection
188 childNode->ConnectToSceneGraph();
191 void Node::DisconnectChild(BufferIndex updateBufferIndex, Node& childNode)
193 DALI_ASSERT_ALWAYS(this != &childNode);
194 DALI_ASSERT_ALWAYS(childNode.GetParent() == this);
196 // Find the childNode and remove it
197 Node* found(nullptr);
199 const NodeIter endIter = mChildren.End();
200 for(NodeIter iter = mChildren.Begin(); iter != endIter; ++iter)
202 Node* current = *iter;
203 if(current == &childNode)
206 mChildren.Erase(iter); // order matters here
207 break; // iter is no longer valid
210 DALI_ASSERT_ALWAYS(nullptr != found);
212 found->RecursiveDisconnectFromSceneGraph(updateBufferIndex);
215 void Node::AddRenderer(const RendererKey& renderer)
217 // If it is the first renderer added, make sure the world transform will be calculated
218 // in the next update as world transform is not computed if node has no renderers.
219 if(mRenderers.Empty())
221 mDirtyFlags |= NodePropertyFlags::TRANSFORM;
225 // Check that it has not been already added.
226 for(auto&& existingRenderer : mRenderers)
228 if(existingRenderer == renderer)
230 // Renderer is already in the list.
238 mRenderers.PushBack(renderer);
241 void Node::RemoveRenderer(const RendererKey& renderer)
243 RendererContainer::SizeType rendererCount(mRenderers.Size());
244 for(RendererContainer::SizeType i = 0; i < rendererCount; ++i)
246 if(mRenderers[i] == renderer)
248 renderer->DetachFromNodeDataProvider(*this);
251 mRenderers.Erase(mRenderers.Begin() + i);
257 NodePropertyFlags Node::GetDirtyFlags() const
259 // get initial dirty flags, they are reset ResetDefaultProperties, but setters may have made the node dirty already
260 NodePropertyFlags flags = mDirtyFlags;
262 // Check whether the visible property has changed
263 if(!mVisible.IsClean())
265 flags |= NodePropertyFlags::VISIBLE;
268 // Check whether the color property has changed
269 if(!mColor.IsClean())
271 flags |= NodePropertyFlags::COLOR;
277 NodePropertyFlags Node::GetInheritedDirtyFlags(NodePropertyFlags parentFlags) const
279 // Size is not inherited. VisibleFlag is inherited
280 static const NodePropertyFlags InheritedDirtyFlags = NodePropertyFlags::TRANSFORM | NodePropertyFlags::VISIBLE | NodePropertyFlags::COLOR;
281 using UnderlyingType = typename std::underlying_type<NodePropertyFlags>::type;
283 return static_cast<NodePropertyFlags>(static_cast<UnderlyingType>(mDirtyFlags) |
284 (static_cast<UnderlyingType>(parentFlags) & static_cast<UnderlyingType>(InheritedDirtyFlags)));
287 void Node::ResetDirtyFlags(BufferIndex updateBufferIndex)
289 mDirtyFlags = NodePropertyFlags::NOTHING;
291 mUpdateAreaChanged = false;
294 void Node::SetParent(Node& parentNode)
296 DALI_ASSERT_ALWAYS(this != &parentNode);
297 DALI_ASSERT_ALWAYS(!mIsRoot);
298 DALI_ASSERT_ALWAYS(mParent == nullptr);
300 mParent = &parentNode;
302 if(mTransformManagerData.Id() != INVALID_TRANSFORM_ID)
304 mTransformManagerData.Manager()->SetParent(mTransformManagerData.Id(), parentNode.GetTransformId());
308 void Node::RecursiveDisconnectFromSceneGraph(BufferIndex updateBufferIndex)
310 DALI_ASSERT_ALWAYS(!mIsRoot);
311 DALI_ASSERT_ALWAYS(mParent != nullptr);
313 const NodeIter endIter = mChildren.End();
314 for(NodeIter iter = mChildren.Begin(); iter != endIter; ++iter)
316 (*iter)->RecursiveDisconnectFromSceneGraph(updateBufferIndex);
319 // Animators, Constraints etc. should be disconnected from the child's properties.
320 PropertyOwner::DisconnectFromSceneGraph(updateBufferIndex);
322 // Remove back-pointer to parent
325 // Remove all child pointers
328 if(mTransformManagerData.Id() != INVALID_TRANSFORM_ID)
330 mTransformManagerData.Manager()->SetParent(mTransformManagerData.Id(), INVALID_TRANSFORM_ID);
334 uint32_t Node::GetMemoryPoolCapacity()
336 return GetNodeMemoryPool().GetCapacity();
339 } // namespace SceneGraph
341 } // namespace Internal