2 * Copyright (c) 2024 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/frame-callback-processor.h>
25 #include <dali/devel-api/update/frame-callback-interface.h>
26 #include <dali/devel-api/update/update-proxy.h>
27 #include <dali/integration-api/debug.h>
28 #include <dali/integration-api/trace.h>
29 #include <dali/internal/update/manager/global-scene-graph-traveler.h>
30 #include <dali/internal/update/manager/scene-graph-traveler.h>
34 DALI_INIT_TRACE_FILTER(gTraceFilter, DALI_TRACE_PERFORMANCE_MARKER, false);
43 FrameCallbackProcessor::FrameCallbackProcessor(UpdateManager& updateManager, TransformManager& transformManager)
45 mUpdateManager(updateManager),
46 mTransformManager(transformManager),
47 mRootNodeTravelerMap{},
48 mNodeHierarchyChanged(true)
52 FrameCallbackProcessor::~FrameCallbackProcessor() = default;
54 void FrameCallbackProcessor::AddFrameCallback(OwnerPointer<FrameCallback>& frameCallback, const Node* rootNode)
56 // We allow to input root node as nullptr.
57 // In this case, let we use global scene graph traveler, instead of node traveler
60 Node& node = const_cast<Node&>(*rootNode); // Was sent as const from event thread, we need to be able to use non-const version here.
62 auto traveler = GetSceneGraphTraveler(&node);
64 frameCallback->ConnectToSceneGraph(mUpdateManager, mTransformManager, node, traveler);
70 mGlobalTraveler = new GlobalSceneGraphTraveler(mUpdateManager);
72 frameCallback->ConnectToSceneGraph(mUpdateManager, mTransformManager, mGlobalTraveler);
75 mFrameCallbacks.emplace_back(frameCallback);
78 void FrameCallbackProcessor::RemoveFrameCallback(FrameCallbackInterface* frameCallback)
80 // Find and remove all frame-callbacks that use the given frame-callback-interface
81 auto iter = std::remove(mFrameCallbacks.begin(), mFrameCallbacks.end(), frameCallback);
82 mFrameCallbacks.erase(iter, mFrameCallbacks.end());
85 void FrameCallbackProcessor::NotifyFrameCallback(FrameCallbackInterface* frameCallback, Dali::UpdateProxy::NotifySyncPoint syncPoint)
87 // Ensure that frame callback is still valid before sending notification
88 auto iter = std::find(mFrameCallbacks.begin(), mFrameCallbacks.end(), frameCallback);
89 if(iter != mFrameCallbacks.end())
91 (*iter)->Notify(syncPoint);
95 bool FrameCallbackProcessor::Update(BufferIndex bufferIndex, float elapsedSeconds)
97 bool keepRendering = false;
99 if(mNodeHierarchyChanged && !mRootNodeTravelerMap.empty())
101 DALI_LOG_DEBUG_INFO("Node hierarchy changed. Update traveler map\n");
102 // Clear node traveler
103 for(auto iter = mRootNodeTravelerMap.begin(); iter != mRootNodeTravelerMap.end();)
105 // We don't need to erase invalidated traveler always. Just erase now.
106 // Note : ReferenceCount == 1 mean, no frame callbacks use this traveler now. We can erase it.
107 if(iter->second->IsInvalidated() || iter->second->ReferenceCount() == 1u)
109 iter = mRootNodeTravelerMap.erase(iter);
113 if(iter->first->IsDescendentHierarchyChanged())
115 iter->second->NodeHierarchyChanged();
122 if(!mFrameCallbacks.empty())
124 DALI_TRACE_BEGIN_WITH_MESSAGE_GENERATOR(gTraceFilter, "DALI_FRAME_CALLBACK_UPDATE", [&](std::ostringstream& oss) {
125 oss << "[" << mFrameCallbacks.size() << "]";
128 // If any of the FrameCallback::Update calls returns false, then they are no longer required & can be removed.
129 auto iter = std::remove_if(
130 mFrameCallbacks.begin(), mFrameCallbacks.end(), [&](OwnerPointer<FrameCallback>& frameCallback) {
131 FrameCallback::RequestFlags requests = frameCallback->Update(bufferIndex, elapsedSeconds, mNodeHierarchyChanged);
132 keepRendering |= (requests & FrameCallback::KEEP_RENDERING);
133 return (requests & FrameCallback::CONTINUE_CALLING) == 0;
135 mFrameCallbacks.erase(iter, mFrameCallbacks.end());
137 DALI_TRACE_END_WITH_MESSAGE_GENERATOR(gTraceFilter, "DALI_FRAME_CALLBACK_UPDATE", [&](std::ostringstream& oss) {
138 oss << "[" << mFrameCallbacks.size() << "]";
142 mNodeHierarchyChanged = false;
144 return keepRendering;
147 SceneGraphTravelerPtr FrameCallbackProcessor::GetSceneGraphTraveler(Node* rootNode)
149 auto iter = mRootNodeTravelerMap.find(rootNode);
151 if(iter != mRootNodeTravelerMap.end())
153 // Check wheter traveler is invalidated or not
154 if(!iter->second->IsInvalidated())
160 mRootNodeTravelerMap.erase(iter);
164 // Create new traveler and keep it.
165 return (mRootNodeTravelerMap.insert({rootNode, new SceneGraphTraveler(mUpdateManager, *rootNode)})).first->second;
168 } // namespace SceneGraph
170 } // namespace Internal