2 * Copyright (c) 2019 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/public-api/object/type-registry.h>
32 #include <dali/public-api/render-tasks/render-task-list.h>
33 #include <dali/internal/event/rendering/frame-buffer-impl.h>
34 #include <dali/internal/event/size-negotiation/relayout-controller-impl.h>
36 using Dali::Internal::SceneGraph::Node;
47 const Vector4 DEFAULT_BACKGROUND_COLOR(0.0f, 0.0f, 0.0f, 1.0f); // Default background color
51 ScenePtr Scene::New( const Size& size )
53 ScenePtr scene = new Scene( size );
55 // Second-phase construction
61 Scene::Scene( const Size& size )
62 : mSurface( nullptr ),
64 mSurfaceSize( Vector2::ZERO ),
65 mDpi( Vector2::ZERO ),
66 mBackgroundColor( DEFAULT_BACKGROUND_COLOR ),
67 mDepthTreeDirty( false ),
68 mEventProcessor( *this, ThreadLocalStorage::GetInternal()->GetGestureEventProcessor() )
76 // its enough to release the handle so the object is released
77 // don't need to remove it from root actor as root actor will delete the object
78 mDefaultCamera.Reset();
83 // we are closing down so just delete the root, no point emit disconnect
84 // signals or send messages to update
90 mRenderTaskList.Reset();
98 // Discard this Scene from the Core
102 void Scene::Initialize()
104 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
106 DALI_ASSERT_ALWAYS( tls && "Attempt to create scene before core exists!" );
108 tls->AddScene( this );
110 SceneGraph::UpdateManager& updateManager = tls->GetUpdateManager();
112 // Create the ordered list of layers
113 mLayerList = LayerList::New( updateManager );
115 // The scene owns the default layer
116 mRootLayer = Layer::NewRoot( *mLayerList );
117 mRootLayer->SetName("RootLayer");
118 mRootLayer->SetScene( *this );
120 // The root layer needs to have a fixed resize policy (as opposed to the default USE_NATURAL_SIZE).
121 // This stops actors parented to the stage having their relayout requests propagating
122 // up to the root layer, and down through other children unnecessarily.
123 mRootLayer->SetResizePolicy( ResizePolicy::FIXED, Dimension::ALL_DIMENSIONS );
125 // Create the default camera actor first; this is needed by the RenderTaskList
126 // The default camera attributes and position is such that children of the default layer,
127 // can be positioned at (0,0) and be at the top-left of the viewport.
128 mDefaultCamera = CameraActor::New( mSize );
129 mDefaultCamera->SetParentOrigin(ParentOrigin::CENTER);
130 Add(*(mDefaultCamera.Get()));
132 // Create the list of render-tasks
133 mRenderTaskList = RenderTaskList::New();
135 // Create the default render-task
136 mRenderTaskList->CreateTask( mRootLayer.Get(), mDefaultCamera.Get() );
139 void Scene::Add(Actor& actor)
141 mRootLayer->Add( actor );
144 void Scene::Remove(Actor& actor)
146 mRootLayer->Remove( actor );
149 Size Scene::GetSize() const
154 void Scene::SetDpi(Vector2 dpi)
159 Vector2 Scene::GetDpi() const
164 RenderTaskList& Scene::GetRenderTaskList() const
166 return *mRenderTaskList;
169 Dali::Layer Scene::GetRootLayer() const
171 return Dali::Layer( mRootLayer.Get() );
174 LayerList& Scene::GetLayerList() const
179 uint32_t Scene::GetLayerCount() const
181 return mLayerList->GetLayerCount();
184 Dali::Layer Scene::GetLayer( uint32_t depth ) const
186 return Dali::Layer(mLayerList->GetLayer( depth ));
189 CameraActor& Scene::GetDefaultCameraActor()
191 return *mDefaultCamera;
194 Actor& Scene::GetDefaultRootActor()
199 void Scene::SetSurface( Integration::RenderSurface& surface )
204 RenderTaskPtr defaultRenderTask = mRenderTaskList->GetTask( 0u );
206 mFrameBuffer = Dali::Internal::FrameBuffer::New( surface, Dali::FrameBuffer::Attachment::NONE );
207 defaultRenderTask->SetFrameBuffer( mFrameBuffer );
213 void Scene::SurfaceResized()
217 const float fWidth = static_cast<float>( mSurface->GetPositionSize().width );
218 const float fHeight = static_cast<float>( mSurface->GetPositionSize().height );
220 if( ( fabsf( mSurfaceSize.width - fWidth ) > Math::MACHINE_EPSILON_1 ) || ( fabsf( mSurfaceSize.height - fHeight ) > Math::MACHINE_EPSILON_1 ) )
222 Rect<int32_t> newSize( 0, 0, static_cast<int32_t>( mSurface->GetPositionSize().width ), static_cast<int32_t>( mSurface->GetPositionSize().height ) );
224 mSurfaceSize.width = fWidth;
225 mSurfaceSize.height = fHeight;
227 mSize.width = mSurfaceSize.width;
228 mSize.height = mSurfaceSize.height;
230 // Calculates the aspect ratio, near and far clipping planes, field of view and camera Z position.
231 mDefaultCamera->SetPerspectiveProjection( mSurfaceSize );
233 mRootLayer->SetSize( mSize.width, mSize.height );
235 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
236 SceneGraph::UpdateManager& updateManager = tls->GetUpdateManager();
237 SetDefaultSurfaceRectMessage( updateManager, newSize ); // truncated
239 RenderTaskPtr defaultRenderTask = mRenderTaskList->GetTask( 0u );
241 // if single render task to screen then set its viewport parameters
242 if( 1 == mRenderTaskList->GetTaskCount() )
244 if( !defaultRenderTask->GetTargetFrameBuffer() )
246 defaultRenderTask->SetViewport( newSize ); // truncated
250 defaultRenderTask->GetFrameBuffer()->SetSize( static_cast<uint32_t>( newSize.width ), static_cast<uint32_t>( newSize.height ) );
255 void Scene::SurfaceDeleted()
259 // The frame buffer doesn't have a valid render surface any more.
260 mFrameBuffer->MarkSurfaceAsInvalid();
264 Integration::RenderSurface* Scene::GetSurface() const
269 void Scene::Discard()
271 if( ThreadLocalStorage::Created() )
273 ThreadLocalStorage* tls = ThreadLocalStorage::GetInternal();
274 tls->RemoveScene( this );
278 void Scene::RequestRebuildDepthTree()
280 mDepthTreeDirty = true;
283 void Scene::QueueEvent( const Integration::Event& event )
285 mEventProcessor.QueueEvent( event );
288 void Scene::ProcessEvents()
290 mEventProcessor.ProcessEvents();
293 void Scene::RebuildDepthTree()
295 // If the depth tree needs rebuilding, do it in this frame only.
296 if( mDepthTreeDirty )
298 ActorPtr actor( mRootLayer.Get() );
299 actor->RebuildDepthTree();
300 mDepthTreeDirty = false;
304 void Scene::SetBackgroundColor( const Vector4& color )
306 mBackgroundColor = color;
310 mRenderTaskList->GetTask( 0u )->GetFrameBuffer()->SetBackgroundColor( color );
314 Vector4 Scene::GetBackgroundColor() const
316 return mBackgroundColor;
319 void Scene::EmitKeyEventSignal(const KeyEvent& event)
321 if ( !mKeyEventSignal.Empty() )
323 Dali::Integration::Scene handle( this );
324 mKeyEventSignal.Emit( event );
328 bool Scene::EmitKeyEventGeneratedSignal(const KeyEvent& event)
330 // Emit the KeyEventGenerated signal when KeyEvent is generated
331 return mKeyEventGeneratedSignal.Emit( event );
334 void Scene::EmitEventProcessingFinishedSignal()
336 if ( !mEventProcessingFinishedSignal.Empty() )
338 Dali::Integration::Scene handle( this );
339 mEventProcessingFinishedSignal.Emit();
343 void Scene::EmitTouchedSignal( const TouchEvent& touchEvent, const Dali::TouchData& touch )
345 Dali::Integration::Scene handle( this );
346 if ( !mTouchedSignal.Empty() )
348 mTouchedSignal.Emit( touchEvent );
350 if ( !mTouchSignal.Empty() )
352 mTouchSignal.Emit( touch );
356 void Scene::EmitWheelEventSignal(const WheelEvent& event)
358 if ( !mWheelEventSignal.Empty() )
360 Dali::Integration::Scene handle( this );
361 mWheelEventSignal.Emit( event );
365 Integration::Scene::KeyEventSignalType& Scene::KeyEventSignal()
367 return mKeyEventSignal;
370 Integration::Scene::KeyEventGeneratedSignalType& Scene::KeyEventGeneratedSignal()
372 return mKeyEventGeneratedSignal;
375 Integration::Scene::EventProcessingFinishedSignalType& Scene::EventProcessingFinishedSignal()
377 return mEventProcessingFinishedSignal;
380 Scene::TouchedSignalType& Scene::TouchedSignal()
382 return mTouchedSignal;
385 Integration::Scene::TouchSignalType& Scene::TouchSignal()
390 Integration::Scene::WheelEventSignalType& Scene::WheelEventSignal()
392 return mWheelEventSignal;