1 #ifndef DALI_INTERNAL_SCENE_GRAPH_PROPERTY_OWNER_MESSAGES_H
2 #define DALI_INTERNAL_SCENE_GRAPH_PROPERTY_OWNER_MESSAGES_H
5 * Copyright (c) 2019 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
25 #include <dali/internal/event/common/event-thread-services.h>
26 #include <dali/internal/event/common/property-input-impl.h>
27 #include <dali/internal/update/common/property-owner.h>
28 #include <dali/internal/update/animation/scene-graph-constraint-base.h>
39 // Property Messages for PropertyOwner
42 * A base class for property owner property messages.
43 * (For future optimization - see NodeMessageBase & Node.SetActive())
45 class PropertyOwnerMessageBase : public MessageBase
52 PropertyOwnerMessageBase();
57 ~PropertyOwnerMessageBase() override;
62 PropertyOwnerMessageBase(const PropertyOwnerMessageBase&);
63 PropertyOwnerMessageBase& operator=(const PropertyOwnerMessageBase& rhs);
67 * Templated message which bakes a property.
69 template< typename P >
70 class AnimatablePropertyMessage : public PropertyOwnerMessageBase
73 using MemberFunction = void ( AnimatableProperty<P>::* )( BufferIndex, typename ParameterType<P>::PassingType );
77 * @note The scene object is expected to be const in the thread which sends this message.
78 * However it can be modified when Process() is called in a different thread.
79 * @param[in] eventThreadServices The object used to send messages to the scene graph
80 * @param[in] sceneObject The property owner scene object
81 * @param[in] property The property to bake.
82 * @param[in] member The member function of the object.
83 * @param[in] value The new value of the property.
85 static void Send( EventThreadServices& eventThreadServices,
86 const PropertyOwner* sceneObject,
87 const AnimatableProperty<P>* property,
88 MemberFunction member,
89 typename ParameterType< P >::PassingType value )
91 // Reserve some memory inside the message queue
92 uint32_t* slot = eventThreadServices.ReserveMessageSlot( sizeof( AnimatablePropertyMessage ) );
94 // Construct message in the message queue memory; note that delete should not be called on the return value
95 new (slot) AnimatablePropertyMessage( sceneObject, property, member, value );
101 ~AnimatablePropertyMessage() override
106 * @copydoc MessageBase::Process
108 void Process( BufferIndex updateBufferIndex ) override
110 (mProperty->*mMemberFunction)( updateBufferIndex, mParam );
117 * @note The property owner is expected to be const in the thread which sends this message.
118 * However it can be modified when Process() is called in a different thread.
119 * @param[in] sceneObject the property owner scene object
120 * @param[in] property The property to bake.
121 * @param[in] member The member function of the object.
122 * @param[in] value The new value of the property.
124 AnimatablePropertyMessage( const PropertyOwner* sceneObject,
125 const AnimatableProperty<P>* property,
126 MemberFunction member,
127 typename ParameterType< P >::PassingType value )
128 : PropertyOwnerMessageBase(),
129 mSceneObject( const_cast< PropertyOwner* >( sceneObject ) ),
130 mProperty( const_cast< AnimatableProperty<P>* >( property ) ),
131 mMemberFunction( member ),
138 PropertyOwner* mSceneObject;
139 AnimatableProperty<P>* mProperty;
140 MemberFunction mMemberFunction;
141 typename ParameterType< P >::HolderType mParam;
145 * Templated message which bakes a property.
147 template< typename P >
148 class AnimatablePropertyComponentMessage : public PropertyOwnerMessageBase
151 using MemberFunction = void ( AnimatableProperty<P>::* )( BufferIndex, float );
155 * @note The scene object is expected to be const in the thread which sends this message.
156 * However it can be modified when Process() is called in a different thread.
157 * @param[in] eventThreadServices The service object used for sending messages to the scene graph
158 * @param[in] sceneObject The property owner scene object
159 * @param[in] property The property to bake.
160 * @param[in] member The member function of the object.
161 * @param[in] value The new value of the X,Y,Z or W component.
163 static void Send( EventThreadServices& eventThreadServices,
164 const PropertyOwner* sceneObject,
165 const AnimatableProperty<P>* property,
166 MemberFunction member,
169 // Reserve some memory inside the message queue
170 uint32_t* slot = eventThreadServices.ReserveMessageSlot( sizeof( AnimatablePropertyComponentMessage ) );
172 // Construct message in the message queue memory; note that delete should not be called on the return value
173 new (slot) AnimatablePropertyComponentMessage( sceneObject, property, member, value );
179 ~AnimatablePropertyComponentMessage() override
184 * @copydoc MessageBase::Process
186 void Process( BufferIndex updateBufferIndex ) override
188 (mProperty->*mMemberFunction)( updateBufferIndex, mParam );
195 * @note The scene object is expected to be const in the thread which sends this message.
196 * However it can be modified when Process() is called in a different thread.
197 * @param[in] sceneObject The property owner scene object
198 * @param[in] property The property to bake.
199 * @param[in] member The member function of the object.
200 * @param[in] value The new value of the X,Y,Z or W component.
202 AnimatablePropertyComponentMessage( const PropertyOwner* sceneObject,
203 const AnimatableProperty<P>* property,
204 MemberFunction member,
206 : PropertyOwnerMessageBase(),
207 mSceneObject( const_cast< PropertyOwner* >( sceneObject ) ),
208 mProperty( const_cast< AnimatableProperty<P>* >( property ) ),
209 mMemberFunction( member ),
215 PropertyOwner* mSceneObject;
216 AnimatableProperty<P>* mProperty;
217 MemberFunction mMemberFunction;
222 // Messages for PropertyOwner
224 inline void InstallCustomPropertyMessage( EventThreadServices& eventThreadServices, const PropertyOwner& owner, OwnerPointer<PropertyBase>& property )
226 using LocalType = MessageValue1<PropertyOwner, OwnerPointer<PropertyBase> >;
228 // Reserve some memory inside the message queue
229 uint32_t* slot = eventThreadServices.ReserveMessageSlot( sizeof( LocalType ) );
231 // Construct message in the message queue memory; note that delete should not be called on the return value
232 new (slot) LocalType( &owner, &PropertyOwner::InstallCustomProperty, property );
235 inline void ApplyConstraintMessage( EventThreadServices& eventThreadServices, const PropertyOwner& owner, OwnerPointer<ConstraintBase>& constraint )
237 using LocalType = MessageValue1<PropertyOwner, OwnerPointer<ConstraintBase> >;
239 // Reserve some memory inside the message queue
240 uint32_t* slot = eventThreadServices.ReserveMessageSlot( sizeof( LocalType ) );
242 // Construct message in the message queue memory; note that delete should not be called on the return value
243 new (slot) LocalType( &owner, &PropertyOwner::ApplyConstraint, constraint );
246 inline void RemoveConstraintMessage( EventThreadServices& eventThreadServices, const PropertyOwner& owner, const ConstraintBase& constConstraint )
248 // The update-thread can modify this object.
249 ConstraintBase& constraint = const_cast< ConstraintBase& >( constConstraint );
251 using LocalType = MessageValue1<PropertyOwner, ConstraintBase*>;
253 // Reserve some memory inside the message queue
254 uint32_t* slot = eventThreadServices.ReserveMessageSlot( sizeof( LocalType ) );
256 // Construct message in the message queue memory; note that delete should not be called on the return value
257 new (slot) LocalType( &owner, &PropertyOwner::RemoveConstraint, &constraint );
260 inline void AddUniformMapMessage( EventThreadServices& eventThreadServices, const PropertyOwner& owner, OwnerPointer< UniformPropertyMapping >& map )
262 using LocalType = MessageValue1<PropertyOwner, OwnerPointer<UniformPropertyMapping> >;
264 // Reserve some memory inside the message queue
265 uint32_t* slot = eventThreadServices.ReserveMessageSlot( sizeof( LocalType ) );
267 new (slot) LocalType( &owner, &PropertyOwner::AddUniformMapping, map );
270 inline void RemoveUniformMapMessage( EventThreadServices& eventThreadServices, const PropertyOwner& owner, const std::string& uniformName )
272 using LocalType = MessageValue1<PropertyOwner, std::string>;
274 // Reserve some memory inside the message queue
275 uint32_t* slot = eventThreadServices.ReserveMessageSlot( sizeof( LocalType ) );
277 new (slot) LocalType( &owner, &PropertyOwner::RemoveUniformMapping, uniformName );
281 } // namespace SceneGraph
283 } // namespace Internal
287 #endif // DALI_INTERNAL_SCENE_GRAPH_PROPERTY_OWNER_MESSAGES_H