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/update/manager/scene-graph-frame-callback.h>
22 #include <dali/devel-api/threading/mutex.h>
23 #include <dali/devel-api/update/frame-callback-interface.h>
24 #include <dali/devel-api/update/update-proxy.h>
25 #include <dali/internal/event/update/frame-callback-interface-impl.h>
33 FrameCallback* FrameCallback::New(FrameCallbackInterface& frameCallbackInterface)
35 return new FrameCallback(&frameCallbackInterface);
38 FrameCallback::~FrameCallback()
42 mUpdateProxy->GetRootNode().RemoveObserver(*this);
43 mUpdateProxy->AddNodeResetters();
49 void FrameCallback::ConnectToSceneGraph(UpdateManager& updateManager, TransformManager& transformManager, Node& rootNode)
51 mUpdateProxy = std::unique_ptr<UpdateProxy>(new UpdateProxy(updateManager, transformManager, rootNode));
52 rootNode.AddObserver(*this);
55 bool FrameCallback::Update(BufferIndex bufferIndex, float elapsedSeconds, bool nodeHierarchyChanged)
57 bool continueCalling = false;
60 mUpdateProxy->SetCurrentBufferIndex(bufferIndex);
62 if(nodeHierarchyChanged)
64 mUpdateProxy->NodeHierarchyChanged();
67 Mutex::ScopedLock lock(mMutex);
68 if(mFrameCallbackInterface && mValid)
70 Dali::UpdateProxy updateProxy(*mUpdateProxy);
71 mFrameCallbackInterface->Update(updateProxy, elapsedSeconds);
72 continueCalling = true;
75 return continueCalling;
78 void FrameCallback::Invalidate()
80 Mutex::ScopedLock lock(mMutex);
81 if(mFrameCallbackInterface && mValid)
83 FrameCallbackInterface::Impl::Get(*mFrameCallbackInterface).DisconnectFromSceneGraphObject();
85 // Do not set mFrameCallbackInterface to nullptr as it is used for comparison checks by the comparison operator
89 void FrameCallback::PropertyOwnerDestroyed(PropertyOwner& owner)
91 mUpdateProxy.reset(); // Root node is being destroyed so no point keeping the update-proxy either
96 FrameCallback::FrameCallback(FrameCallbackInterface* frameCallbackInterface)
98 mFrameCallbackInterface(frameCallbackInterface)
100 if(frameCallbackInterface)
102 FrameCallbackInterface::Impl::Get(*mFrameCallbackInterface).ConnectToSceneGraphObject(*this);
106 } // namespace SceneGraph
108 } // namespace Internal