2 * Copyright (c) 2020 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/event/common/scene-impl.h>
22 #include <dali/internal/event/actors/layer-impl.h>
23 #include <dali/internal/event/actors/layer-list.h>
24 #include <dali/internal/event/actors/camera-actor-impl.h>
25 #include <dali/internal/event/common/thread-local-storage.h>
26 #include <dali/internal/event/render-tasks/render-task-list-impl.h>
27 #include <dali/internal/event/render-tasks/render-task-impl.h>
28 #include <dali/internal/event/common/object-registry-impl.h>
29 #include <dali/internal/update/nodes/node.h>
30 #include <dali/internal/update/manager/update-manager.h>
31 #include <dali/internal/update/common/scene-graph-scene.h>
32 #include <dali/public-api/common/constants.h>
33 #include <dali/public-api/object/type-registry.h>
34 #include <dali/public-api/render-tasks/render-task-list.h>
35 #include <dali/internal/event/rendering/frame-buffer-impl.h>
36 #include <dali/internal/event/size-negotiation/relayout-controller-impl.h>
38 using Dali::Internal::SceneGraph::Node;
46 ScenePtr Scene::New( Size size )
48 ScenePtr scene = new Scene;
50 // Second-phase construction
51 scene->Initialize( size, 0 );
56 ScenePtr Scene::New( Size size, int orientation )
58 ScenePtr scene = new Scene;
60 // Second-phase construction
61 scene->Initialize( size, orientation );
67 : mSceneObject( nullptr ),
68 mSize(), // Don't set the proper value here, this will be set when the surface is set later
70 mBackgroundColor( DEFAULT_BACKGROUND_COLOR ),
71 mDepthTreeDirty( false ),
72 mEventProcessor( *this, ThreadLocalStorage::GetInternal()->GetGestureEventProcessor() )
78 if( EventThreadServices::IsCoreRunning() && mSceneObject )
80 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
81 RemoveSceneMessage( tls->GetUpdateManager(), *mSceneObject );
86 // its enough to release the handle so the object is released
87 // don't need to remove it from root actor as root actor will delete the object
88 mDefaultCamera.Reset();
93 // we are closing down so just delete the root, no point emit disconnect
94 // signals or send messages to update
100 mRenderTaskList.Reset();
103 // No need to discard this Scene from Core, as Core stores an intrusive_ptr to this scene
104 // When this destructor is called, the scene has either already been removed from Core or Core has already been destroyed
107 void Scene::Initialize( Size size, int orientation )
109 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
111 DALI_ASSERT_ALWAYS( tls && "Attempt to create scene before core exists!" );
113 tls->AddScene( this );
115 SceneGraph::UpdateManager& updateManager = tls->GetUpdateManager();
117 // Create the ordered list of layers
118 mLayerList = LayerList::New( updateManager );
120 // The scene owns the default layer
121 mRootLayer = Layer::NewRoot( *mLayerList );
122 mRootLayer->SetName("RootLayer");
123 mRootLayer->SetScene( *this );
125 // The root layer needs to have a fixed resize policy (as opposed to the default USE_NATURAL_SIZE).
126 // This stops actors parented to the stage having their relayout requests propagating
127 // up to the root layer, and down through other children unnecessarily.
128 mRootLayer->SetResizePolicy( ResizePolicy::FIXED, Dimension::ALL_DIMENSIONS );
130 // Create the default camera actor first; this is needed by the RenderTaskList
131 // The default camera attributes and position is such that children of the default layer,
132 // can be positioned at (0,0) and be at the top-left of the viewport.
133 mDefaultCamera = CameraActor::New( size );
134 mDefaultCamera->SetParentOrigin(ParentOrigin::CENTER);
135 Add(*(mDefaultCamera.Get()));
137 // Create the list of render-tasks
138 mRenderTaskList = RenderTaskList::New();
140 // Create the default render-task and ensure clear is enabled on it to show the background color
141 RenderTaskPtr renderTask = mRenderTaskList->CreateTask( mRootLayer.Get(), mDefaultCamera.Get() );
142 renderTask->SetClearEnabled(true);
143 mSurfaceOrientation = orientation;
145 SurfaceResized( size.width, size.height );
147 // Create scene graph object
148 mSceneObject = new SceneGraph::Scene();
149 OwnerPointer< SceneGraph::Scene > transferOwnership( const_cast< SceneGraph::Scene* >( mSceneObject ) );
150 AddSceneMessage( updateManager, transferOwnership );
153 void Scene::Add(Actor& actor)
155 mRootLayer->Add( actor );
158 void Scene::Remove(Actor& actor)
160 mRootLayer->Remove( actor );
163 Size Scene::GetSize() const
168 void Scene::SetDpi(Vector2 dpi)
173 Vector2 Scene::GetDpi() const
178 RenderTaskList& Scene::GetRenderTaskList() const
180 return *mRenderTaskList;
183 Dali::Layer Scene::GetRootLayer() const
185 return Dali::Layer( mRootLayer.Get() );
188 LayerList& Scene::GetLayerList() const
193 uint32_t Scene::GetLayerCount() const
195 return mLayerList->GetLayerCount();
198 Dali::Layer Scene::GetLayer( uint32_t depth ) const
200 return Dali::Layer(mLayerList->GetLayer( depth ));
203 CameraActor& Scene::GetDefaultCameraActor()
205 return *mDefaultCamera;
208 Actor& Scene::GetDefaultRootActor()
213 void Scene::SurfaceResized( float width, float height )
215 if( ( fabsf( mSize.width - width ) > Math::MACHINE_EPSILON_1 ) || ( fabsf( mSize.height - height ) > Math::MACHINE_EPSILON_1 ) )
217 Rect< int32_t > newSize( 0, 0, static_cast< int32_t >( width ), static_cast< int32_t >( height ) ); // truncated
220 mSize.height = height;
222 // Calculates the aspect ratio, near and far clipping planes, field of view and camera Z position.
223 mDefaultCamera->SetPerspectiveProjection( mSize );
225 mRootLayer->SetSize( mSize.width, mSize.height );
227 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
228 SceneGraph::UpdateManager& updateManager = tls->GetUpdateManager();
229 SetDefaultSurfaceRectMessage( updateManager, newSize );
231 // set default render-task viewport parameters
232 RenderTaskPtr defaultRenderTask = mRenderTaskList->GetTask( 0u );
233 defaultRenderTask->SetViewport( newSize );
237 void Scene::SurfaceReplaced()
241 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
242 SurfaceReplacedMessage( tls->GetUpdateManager(), *mSceneObject );
246 void Scene::Discard()
248 if( ThreadLocalStorage::Created() )
250 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
251 tls->RemoveScene( this );
255 void Scene::RequestRebuildDepthTree()
257 mDepthTreeDirty = true;
260 void Scene::QueueEvent( const Integration::Event& event )
262 mEventProcessor.QueueEvent( event );
265 void Scene::ProcessEvents()
267 mEventProcessor.ProcessEvents();
270 void Scene::RebuildDepthTree()
272 // If the depth tree needs rebuilding, do it in this frame only.
273 if( mDepthTreeDirty )
275 ActorPtr actor( mRootLayer.Get() );
276 actor->RebuildDepthTree();
277 mDepthTreeDirty = false;
281 void Scene::SetBackgroundColor( const Vector4& color )
283 mBackgroundColor = color;
285 mRenderTaskList->GetTask( 0u )->SetClearColor( color );
286 mRenderTaskList->GetTask( 0u )->SetClearEnabled( true );
289 Vector4 Scene::GetBackgroundColor() const
291 return mBackgroundColor;
294 SceneGraph::Scene* Scene::GetSceneObject() const
299 void Scene::EmitKeyEventSignal(const Dali::KeyEvent& event)
301 if ( !mKeyEventSignal.Empty() )
303 Dali::Integration::Scene handle( this );
304 mKeyEventSignal.Emit( event );
308 bool Scene::EmitKeyEventGeneratedSignal(const Dali::KeyEvent& event)
310 // Emit the KeyEventGenerated signal when KeyEvent is generated
311 Dali::Integration::Scene handle( this );
312 return mKeyEventGeneratedSignal.Emit( event );
315 void Scene::EmitEventProcessingFinishedSignal()
317 if ( !mEventProcessingFinishedSignal.Empty() )
319 Dali::Integration::Scene handle( this );
320 mEventProcessingFinishedSignal.Emit();
324 void Scene::EmitTouchedSignal( const Dali::TouchEvent& touch )
326 Dali::Integration::Scene handle( this );
327 if ( !mTouchedSignal.Empty() )
329 mTouchedSignal.Emit( touch );
333 void Scene::EmitWheelEventSignal(const Dali::WheelEvent& event)
335 if ( !mWheelEventSignal.Empty() )
337 Dali::Integration::Scene handle( this );
338 mWheelEventSignal.Emit( event );
342 void Scene::AddFrameRenderedCallback( std::unique_ptr< CallbackBase > callback, int32_t frameId )
344 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
345 AddFrameRenderedCallbackMessage( tls->GetEventThreadServices(), *mSceneObject, callback.release(), frameId );
348 void Scene::AddFramePresentedCallback( std::unique_ptr< CallbackBase > callback, int32_t frameId )
350 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
351 AddFramePresentedCallbackMessage( tls->GetEventThreadServices(), *mSceneObject, callback.release(), frameId );
354 void Scene::GetFrameRenderedCallback( Dali::Integration::Scene::FrameCallbackContainer& callbacks )
356 mSceneObject->GetFrameRenderedCallback( callbacks );
359 void Scene::GetFramePresentedCallback( Dali::Integration::Scene::FrameCallbackContainer& callbacks )
361 mSceneObject->GetFramePresentedCallback( callbacks );
364 Integration::Scene::KeyEventSignalType& Scene::KeyEventSignal()
366 return mKeyEventSignal;
369 Integration::Scene::KeyEventGeneratedSignalType& Scene::KeyEventGeneratedSignal()
371 return mKeyEventGeneratedSignal;
374 Integration::Scene::EventProcessingFinishedSignalType& Scene::EventProcessingFinishedSignal()
376 return mEventProcessingFinishedSignal;
379 Integration::Scene::TouchEventSignalType& Scene::TouchedSignal()
381 return mTouchedSignal;
384 Integration::Scene::WheelEventSignalType& Scene::WheelEventSignal()
386 return mWheelEventSignal;
389 std::vector<Dali::Internal::SceneGraph::DirtyRect>& Scene::GetItemsDirtyRects()
391 return mItemsDirtyRects;