Add Overlay Layer in scene
[platform/core/uifw/dali-core.git] / dali / internal / event / render-tasks / render-task-list-impl.cpp
index eb4bbf6..42722b8 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2021 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
 #include <dali/internal/event/render-tasks/render-task-list-impl.h>
 
 // INTERNAL INCLUDES
-#include <dali/public-api/common/dali-common.h>
+#include <dali/internal/event/actors/camera-actor-impl.h>
 #include <dali/internal/event/common/event-thread-services.h>
 #include <dali/internal/event/common/stage-impl.h>
 #include <dali/internal/event/render-tasks/render-task-defaults.h>
 #include <dali/internal/event/render-tasks/render-task-impl.h>
-#include <dali/internal/event/actors/camera-actor-impl.h>
-#include <dali/internal/update/render-tasks/scene-graph-render-task.h>
-#include <dali/internal/update/render-tasks/scene-graph-render-task-list.h>
 #include <dali/internal/update/manager/update-manager.h>
+#include <dali/internal/update/render-tasks/scene-graph-render-task-list.h>
+#include <dali/internal/update/render-tasks/scene-graph-render-task.h>
+#include <dali/public-api/common/dali-common.h>
 
 using Dali::Internal::SceneGraph::UpdateManager;
 
@@ -54,38 +54,53 @@ RenderTaskListPtr RenderTaskList::New()
 
 RenderTaskPtr RenderTaskList::CreateTask()
 {
-  return CreateTask( &mDefaults.GetDefaultRootActor(), &mDefaults.GetDefaultCameraActor() );
+  return CreateTask(&mDefaults.GetDefaultRootActor(), &mDefaults.GetDefaultCameraActor());
 }
 
-RenderTaskPtr RenderTaskList::CreateTask( Actor* sourceActor, CameraActor* cameraActor)
+RenderTaskPtr RenderTaskList::CreateTask(Actor* sourceActor, CameraActor* cameraActor)
 {
-  RenderTaskPtr task = RenderTask::New( sourceActor, cameraActor, *this );
-
-  mTasks.push_back( task );
+  RenderTaskPtr task = RenderTask::New(sourceActor, cameraActor, *this);
+  if(mOverlayRenderTask && mTasks.back() == mOverlayRenderTask)
+  {
+    mTasks.insert(mTasks.end() - 1, task);
+  }
+  else
+  {
+    mTasks.push_back(task);
+  }
 
   return task;
 }
 
-void RenderTaskList::RemoveTask( Internal::RenderTask& task )
+RenderTaskPtr RenderTaskList::CreateOverlayTask(Actor* sourceActor, CameraActor* cameraActor)
+{
+  if(!mOverlayRenderTask)
+  {
+    mOverlayRenderTask = CreateTask(sourceActor, &mDefaults.GetDefaultCameraActor());
+  }
+  return mOverlayRenderTask;
+}
+
+void RenderTaskList::RemoveTask(Internal::RenderTask& task)
 {
-  for ( RenderTaskContainer::iterator iter = mTasks.begin(); mTasks.end() != iter; ++iter )
+  for(RenderTaskContainer::iterator iter = mTasks.begin(); mTasks.end() != iter; ++iter)
   {
-    if ( iter->Get() == &task )
+    RenderTask* ptr = iter->Get();
+
+    if(ptr == &task)
     {
       const SceneGraph::RenderTask& sceneObject = task.GetRenderTaskSceneObject();
 
       // delete the task
-      mTasks.erase( iter );
+      mTasks.erase(iter);
       // send a message to remove the scene-graph RenderTask
-      RemoveTaskMessage( mEventThreadServices, *mSceneObject, sceneObject );
+      RemoveTaskMessage(mEventThreadServices, *mSceneObject, sceneObject);
 
-      for ( Vector< Exclusive >::Iterator exclusiveIt = mExclusives.Begin(); exclusiveIt != mExclusives.End(); ++exclusiveIt )
+      Exclusive exclusive{ptr, ActorObserver()};
+      ExclusivesContainer::iterator exclusiveIter = find(mExclusives.begin(), mExclusives.end(), exclusive);
+      if(exclusiveIter != mExclusives.end())
       {
-        if ( exclusiveIt->renderTaskPtr == iter->Get() )
-        {
-          mExclusives.Erase( exclusiveIt );
-          break;
-        }
+        mExclusives.erase(exclusiveIter);
       }
       break; // we're finished
     }
@@ -94,58 +109,68 @@ void RenderTaskList::RemoveTask( Internal::RenderTask& task )
 
 uint32_t RenderTaskList::GetTaskCount() const
 {
-  return static_cast<uint32_t>( mTasks.size() ); // only 4,294,967,295 render tasks supported
+  return static_cast<uint32_t>(mTasks.size()); // only 4,294,967,295 render tasks supported
 }
 
-RenderTaskPtr RenderTaskList::GetTask( uint32_t index ) const
+RenderTaskPtr RenderTaskList::GetTask(uint32_t index) const
 {
-  DALI_ASSERT_ALWAYS( ( index < mTasks.size() ) && "RenderTask index out-of-range" );
+  DALI_ASSERT_ALWAYS((index < mTasks.size()) && "RenderTask index out-of-range");
+
+  return mTasks[index];
+}
 
-  return mTasks[ index ];
+RenderTaskPtr RenderTaskList::GetOverlayTask() const
+{
+  RenderTaskPtr overlayRenderTask;
+  if(mOverlayRenderTask)
+  {
+    overlayRenderTask = mOverlayRenderTask;
+  }
+  return overlayRenderTask;
 }
 
-void RenderTaskList::SetExclusive( RenderTask* task, bool exclusive )
+void RenderTaskList::SetExclusive(RenderTask* task, bool exclusive)
 {
   // Check to see if this rendertask has an entry?
-  for ( Vector< Exclusive >::Iterator exclusiveIt = mExclusives.Begin(); exclusiveIt != mExclusives.End(); ++exclusiveIt )
+  for(auto exclusiveIt = mExclusives.begin(); exclusiveIt != mExclusives.end(); ++exclusiveIt)
   {
-    if ( exclusiveIt->renderTaskPtr == task )
+    if(exclusiveIt->renderTaskPtr == task)
     {
-      if ( !exclusive )
+      if(!exclusive)
       {
-        mExclusives.Erase( exclusiveIt );
+        mExclusives.erase(exclusiveIt);
         break;
       }
       else
       {
-        exclusiveIt->actorPtr = task->GetSourceActor();
+        exclusiveIt->actor.SetActor(task->GetSourceActor());
         exclusive = false;
         break;
       }
     }
   }
-  if ( exclusive )
+  if(exclusive)
   {
     Exclusive exclusiveSlot;
     exclusiveSlot.renderTaskPtr = task;
-    exclusiveSlot.actorPtr = task->GetSourceActor();
-    mExclusives.PushBack( exclusiveSlot );
+    exclusiveSlot.actor.SetActor(task->GetSourceActor());
+    mExclusives.emplace_back(std::move(exclusiveSlot));
   }
 }
 
 RenderTaskList::RenderTaskList()
-: mEventThreadServices( EventThreadServices::Get() ),
-  mDefaults( *Stage::GetCurrent() ),
-  mSceneObject( nullptr )
+: mEventThreadServices(EventThreadServices::Get()),
+  mDefaults(*Stage::GetCurrent()),
+  mSceneObject(nullptr)
 {
 }
 
 RenderTaskList::~RenderTaskList()
 {
-  if( EventThreadServices::IsCoreRunning() && mSceneObject )
+  if(EventThreadServices::IsCoreRunning() && mSceneObject)
   {
     // Remove the render task list using a message to the update manager
-    RemoveRenderTaskListMessage( mEventThreadServices.GetUpdateManager(), *mSceneObject );
+    RemoveRenderTaskListMessage(mEventThreadServices.GetUpdateManager(), *mSceneObject);
   }
 }
 
@@ -154,11 +179,11 @@ void RenderTaskList::Initialize()
   // Create a new render task list, Keep a const pointer to the render task list.
   mSceneObject = SceneGraph::RenderTaskList::New();
 
-  OwnerPointer< SceneGraph::RenderTaskList > transferOwnership( const_cast< SceneGraph::RenderTaskList* >( mSceneObject ) );
-  AddRenderTaskListMessage( mEventThreadServices.GetUpdateManager(), transferOwnership );
+  OwnerPointer<SceneGraph::RenderTaskList> transferOwnership(const_cast<SceneGraph::RenderTaskList*>(mSceneObject));
+  AddRenderTaskListMessage(mEventThreadServices.GetUpdateManager(), transferOwnership);
 
   // set the callback to call us back when tasks are completed
-  mSceneObject->SetCompleteNotificationInterface( this );
+  mSceneObject->SetCompleteNotificationInterface(this);
 }
 
 void RenderTaskList::NotifyCompleted()
@@ -169,16 +194,16 @@ void RenderTaskList::NotifyCompleted()
 
   // Since render tasks can be unreferenced during the signal emissions, iterators into render tasks pointers may be invalidated.
   // First copy the finished render tasks, then emit signals
-  for ( RenderTaskContainer::iterator iter = mTasks.begin(), endIt = mTasks.end(); iter != endIt; ++iter )
+  for(RenderTaskContainer::iterator iter = mTasks.begin(), endIt = mTasks.end(); iter != endIt; ++iter)
   {
-    if( (*iter)->HasFinished() )
+    if((*iter)->HasFinished())
     {
-      finishedRenderTasks.push_back( *iter );
+      finishedRenderTasks.push_back(*iter);
     }
   }
 
   // Now it's safe to emit the signals
-  for ( auto&& item : finishedRenderTasks )
+  for(auto&& item : finishedRenderTasks)
   {
     item->EmitSignalFinish();
   }
@@ -186,12 +211,12 @@ void RenderTaskList::NotifyCompleted()
 
 void RenderTaskList::RecoverFromContextLoss()
 {
-  for ( auto&& item : mTasks )
+  for(auto&& item : mTasks)
   {
     // If the render target renders only once to an offscreen, re-render the render task
-    if( item->GetRefreshRate() == Dali::RenderTask::REFRESH_ONCE && item->GetTargetFrameBuffer() )
+    if(item->GetRefreshRate() == Dali::RenderTask::REFRESH_ONCE && item->GetFrameBuffer())
     {
-      item->SetRefreshRate( Dali::RenderTask::REFRESH_ONCE );
+      item->SetRefreshRate(Dali::RenderTask::REFRESH_ONCE);
     }
   }
 }