1 #ifndef DALI_INTERNAL_RENDER_TASK_H
2 #define DALI_INTERNAL_RENDER_TASK_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.
22 #include <dali/public-api/object/base-object.h>
23 #include <dali/public-api/object/weak-handle.h>
24 #include <dali/public-api/render-tasks/render-task.h>
25 #include <dali/internal/event/images/frame-buffer-image-impl.h>
26 #include <dali/internal/event/common/object-impl.h>
27 #include <dali/internal/event/rendering/frame-buffer-impl.h>
28 #include <dali/internal/event/render-tasks/render-task-list-impl.h>
38 class EventThreadServices;
48 using RenderTaskPtr = IntrusivePtr<RenderTask>;
50 class RenderTask : public Object
54 using ScreenToFrameBufferFunction = Dali::RenderTask::ScreenToFrameBufferFunction;
57 * Creates a new RenderTask.
59 * @param[in] sourceActor The source actor.
60 * @param[in] cameraActor The camera actor.
61 * @param[in] renderTaskList The render task list.
62 * @return The created render task
64 static RenderTaskPtr New( Actor* sourceActor, CameraActor* cameraActor, RenderTaskList& renderTaskList );
67 * @copydoc Dali::RenderTask::SetSourceActor()
69 void SetSourceActor( Actor* actor );
72 * @copydoc Dali::RenderTask::GetSourceActor()
74 Actor* GetSourceActor() const;
77 * @copydoc Dali::RenderTask::SetExclusive()
79 void SetExclusive( bool exclusive );
82 * @copydoc Dali::RenderTask::IsExclusive()
84 bool IsExclusive() const;
87 * @copydoc Dali::RenderTask::SetInputEnabled()
89 void SetInputEnabled( bool enabled );
92 * @copydoc Dali::RenderTask::GetInputEnabled()
94 bool GetInputEnabled() const;
97 * @copydoc Dali::RenderTask::SetCameraActor()
99 void SetCameraActor( CameraActor* cameraActor );
102 * @copydoc Dali::RenderTask::GetCameraActor()
104 CameraActor* GetCameraActor() const;
107 * @copydoc Dali::RenderTask::SetTargetFrameBuffer()
109 void SetTargetFrameBuffer( FrameBufferImagePtr frameBuffer );
112 * @copydoc Dali::RenderTask::GetTargetFrameBuffer
114 FrameBufferImage* GetTargetFrameBuffer() const;
117 * @copydoc Dali::RenderTask::SetFrameBuffer()
119 void SetFrameBuffer( FrameBufferPtr frameBuffer );
122 * @copydoc Dali::RenderTask::GetFrameBuffer
124 FrameBuffer* GetFrameBuffer() const;
127 * @copydoc Dali::RenderTask::SetScreenToFrameBufferFunction
129 void SetScreenToFrameBufferFunction( ScreenToFrameBufferFunction conversionFunction );
132 * @copydoc Dali::RenderTask::GetScreenToFrameBufferFunction
134 ScreenToFrameBufferFunction GetScreenToFrameBufferFunction() const;
137 * copydoc Dali::RenderTask::SetScreenToFrameBufferMappingActor
139 void SetScreenToFrameBufferMappingActor( Dali::Actor& mappingActor );
142 * copydoc Dali::RenderTask::GetScreenToFrameBufferMAppingActor
144 Dali::Actor GetScreenToFrameBufferMappingActor() const;
147 * @copydoc Dali::RenderTask::SetViewportPosition
149 void SetViewportPosition(const Vector2& value);
152 * @copydoc Dali::RenderTask::GetCurrentViewportPosition
154 Vector2 GetCurrentViewportPosition() const;
157 * @copydoc Dali::RenderTask::SetViewportSize
159 void SetViewportSize(const Vector2& value);
162 * @copydoc Dali::RenderTask::GetCurrentViewportSize
164 Vector2 GetCurrentViewportSize() const;
167 * @copydoc Dali::RenderTask::SetViewport()
169 void SetViewport( const Viewport& viewport );
172 * @param[out] viewPort instance to copy the values into
174 void GetViewport( Viewport& viewPort ) const;
177 * @copydoc Dali::RenderTask::SetClearColor()
179 void SetClearColor( const Vector4& color );
182 * @copydoc Dali::RenderTask::GetClearColor()
184 const Vector4& GetClearColor() const;
187 * Indicate whether GL sync is required for native render target.
188 * @param[in] requiresSync whether GL sync is required.
190 void SetSyncRequired( bool requiresSync );
193 * Query whether the sync object is required for native render target.
194 * @return True if the sync object is required, false otherwise.
196 bool IsSyncRequired() const;
199 * @copydoc Dali::RenderTask::SetClearEnabled()
201 void SetClearEnabled( bool enabled );
204 * @copydoc Dali::RenderTask::GetClearEnabled()
206 bool GetClearEnabled() const;
209 * @copydoc Dali::RenderTask::SetCullMode()
211 void SetCullMode( bool mode );
214 * @copydoc Dali::RenderTask::GetCullMode()
216 bool GetCullMode() const;
219 * @copydoc Dali::RenderTask::SetRefreshRate()
221 void SetRefreshRate( uint32_t refreshRate );
224 * @copydoc Dali::RenderTask::GetRefreshRate()
226 uint32_t GetRefreshRate() const;
229 * Check if the render-task is hittable. If render task is offscreen, the screen coordinates may be translated.
230 * @param[in,out] screenCoords The screen coordinate, which may be converted (for hit-testing actors which are rendered off-screen).
231 * @return True the render-task can be used for input-handling; otherwise the output parameters are not valid.
233 bool IsHittable( Vector2& screenCoords ) const;
236 * Translates screen coordinates to render task coordinates for offscreen render tasks
237 * @param[in,out] screenCoords The screen coordinates, which may be converted (for off-screen).
238 * @return false if the conversion function decides the coordinates are not inside. returns true if there is no conversion function
240 bool TranslateCoordinates( Vector2& screenCoords ) const;
243 * @copydoc Dali::RenderTask::WorldToViewport()
245 bool WorldToViewport(const Vector3 &position, float& viewportX, float& viewportY) const;
248 * @copydoc Dali::RenderTask::ViewportToLocal()
250 bool ViewportToLocal(Actor* actor, float viewportX, float viewportY, float &localX, float &localY) const;
252 public: // Used by RenderTaskList, which owns the SceneGraph::RenderTasks
255 * Retrieve the scene-graph RenderTask object.
256 * @return The scene-graph object
258 const SceneGraph::RenderTask& GetRenderTaskSceneObject() const;
261 * Retrieve the render task list RenderTask object belongs to.
262 * @return The render task list
264 RenderTaskList& GetRenderTaskList() const;
266 public: // Implementation of Object
269 * @copydoc Dali::Internal::Object::SetDefaultProperty()
271 virtual void SetDefaultProperty(Property::Index index, const Property::Value& propertyValue);
274 * @copydoc Dali::Internal::Object::GetDefaultProperty()
276 virtual Property::Value GetDefaultProperty( Property::Index index ) const;
279 * @copydoc Dali::Internal::Object::GetDefaultPropertyCurrentValue()
281 virtual Property::Value GetDefaultPropertyCurrentValue( Property::Index index ) const;
284 * @copydoc Dali::Internal::Object::OnNotifyDefaultPropertyAnimation()
286 virtual void OnNotifyDefaultPropertyAnimation( Animation& animation, Property::Index index, const Property::Value& value, Animation::Type animationType );
289 * @copydoc Dali::Internal::Object::GetSceneObjectAnimatableProperty()
291 virtual const SceneGraph::PropertyBase* GetSceneObjectAnimatableProperty( Property::Index index ) const;
294 * @copydoc Dali::Internal::Object::GetSceneObjectInputProperty()
296 virtual const PropertyInputImpl* GetSceneObjectInputProperty( Property::Index index ) const;
301 * Query whether a Finished signal should be emitted for this render-task.
302 * This should only be called by NotificationManager, before signals are emitted.
303 * @pre The refresh rate must be REFRESH_ONCE.
304 * @post HasFinished() will return false on subsequent calls, until the render-task is processed again.
305 * @return \e true if the refresh once render task has finished. Otherwise it returns \e false.
310 * Emit the Finished signal
312 void EmitSignalFinish();
315 * @copydoc Dali::RenderTask::FinishedSignal()
317 Dali::RenderTask::RenderTaskSignalType& FinishedSignal();
320 * Connects a callback function with the object's signals.
321 * @param[in] object The object providing the signal.
322 * @param[in] tracker Used to disconnect the signal.
323 * @param[in] signalName The signal to connect to.
324 * @param[in] functor A newly allocated FunctorDelegate.
325 * @return True if the signal was connected.
326 * @post If a signal was connected, ownership of functor was passed to CallbackBase. Otherwise the caller is responsible for deleting the unused functor.
328 static bool DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor );
335 * @param[in] sceneObject The scene graph object
336 * @param[in] renderTaskList The render task list
338 RenderTask( const SceneGraph::RenderTask* sceneObject, RenderTaskList& renderTaskList );
341 * A reference counted object may only be deleted by calling Unreference()
343 virtual ~RenderTask();
345 private: // not copyable
347 RenderTask() = delete;
348 RenderTask( const RenderTask& ) = delete;
349 RenderTask& operator=( const RenderTask& ) = delete;
353 Actor* mSourceActor; ///< Source actor, we cannot keep the actor alive so raw pointer.
354 CameraActor* mCameraActor; ///< Camera actor, we cannot keep the actor alive so raw pointer.
355 WeakHandle<Dali::Actor> mInputMappingActor; /// used to mapping screen to frame buffer coordinate, not kept alive by rendertask
356 RenderTaskList& mRenderTaskList; ///< The render task list
358 Vector4 mClearColor; ///< Optional clear color
360 Vector2 mViewportPosition; ///< The cached viewport position
361 Vector2 mViewportSize; ///< The cached viewport size
363 uint32_t mRefreshRate; ///< Determines how often the task is processed.
365 uint32_t mRefreshOnceCounter;
367 FrameBufferImagePtr mFrameBufferImage; ///< Optional off-screen render target.
368 FrameBufferPtr mFrameBuffer;
371 Dali::RenderTask::ScreenToFrameBufferFunction mScreenToFrameBufferFunction; ///< Used to convert screen to frame-buffer coordinates
373 bool mExclusive : 1; ///< True if the render-task has exclusive access to the source Nodes.
374 bool mInputEnabled : 1; ///< True if the render-task should be considered for input handling.
375 bool mClearEnabled : 1; ///< True if the render-task should be clear the color buffer.
376 bool mCullMode : 1; ///< True if the render-task's actors should be culled
377 bool mRequiresSync : 1; ///< True if the GL sync is required to track the render of.
380 Dali::RenderTask::RenderTaskSignalType mSignalFinished; ///< Signal emmited when the render task has been processed.
383 } // namespace Internal
385 // Helpers for public-api forwarding methods
387 inline Internal::RenderTask& GetImplementation(Dali::RenderTask& task)
389 DALI_ASSERT_ALWAYS(task && "RenderTask handle is empty");
391 BaseObject& handle = task.GetBaseObject();
393 return static_cast<Internal::RenderTask&>(handle);
396 inline const Internal::RenderTask& GetImplementation(const Dali::RenderTask& task)
398 DALI_ASSERT_ALWAYS(task && "RenderTask handle is empty");
400 const BaseObject& handle = task.GetBaseObject();
402 return static_cast<const Internal::RenderTask&>(handle);
407 #endif // DALI_INTERNAL_RENDER_TASK_H