[Tizen] Implement partial update
[platform/core/uifw/dali-core.git] / dali / internal / render / common / render-manager.cpp
old mode 100644 (file)
new mode 100755 (executable)
index a69d02f..986e430
 // CLASS HEADER
 #include <dali/internal/render/common/render-manager.h>
 
+// EXTERNAL INCLUDES
+#include <memory.h>
+
 // INTERNAL INCLUDES
 #include <dali/public-api/actors/sampling.h>
 #include <dali/public-api/common/dali-common.h>
 #include <dali/public-api/common/stage.h>
 #include <dali/public-api/render-tasks/render-task.h>
+#include <dali/devel-api/threading/thread-pool.h>
 #include <dali/integration-api/debug.h>
 #include <dali/integration-api/core.h>
+#include <dali/integration-api/gl-context-helper-abstraction.h>
 #include <dali/internal/common/owner-pointer.h>
 #include <dali/internal/render/common/render-algorithms.h>
 #include <dali/internal/render/common/render-debug.h>
@@ -50,6 +55,44 @@ namespace Internal
 namespace SceneGraph
 {
 
+#if defined(DEBUG_ENABLED)
+namespace
+{
+Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_RENDER_MANAGER" );
+} // unnamed namespace
+#endif
+
+namespace
+{
+const float partialUpdateRatio = 0.8f; // If the partial update area exceeds 80%, change to full update.
+
+/**
+ * @brief Find the intersection of two AABB rectangles.
+ * This is a logical AND operation. IE. The intersection is the area overlapped by both rectangles.
+ * @param[in]     aabbA                  Rectangle A
+ * @param[in]     aabbB                  Rectangle B
+ * @return                               The intersection of rectangle A & B (result is a rectangle)
+ */
+inline ClippingBox IntersectAABB( const ClippingBox& aabbA, const ClippingBox& aabbB )
+{
+  ClippingBox intersectionBox;
+
+  // First calculate the largest starting positions in X and Y.
+  intersectionBox.x = std::max( aabbA.x, aabbB.x );
+  intersectionBox.y = std::max( aabbA.y, aabbB.y );
+
+  // Now calculate the smallest ending positions, and take the largest starting
+  // positions from the result, to get the width and height respectively.
+  // If the two boxes do not intersect at all, then we need a 0 width and height clipping area.
+  // We use max here to clamp both width and height to >= 0 for this use-case.
+  intersectionBox.width =  std::max( std::min( aabbA.x + aabbA.width,  aabbB.x + aabbB.width  ) - intersectionBox.x, 0 );
+  intersectionBox.height = std::max( std::min( aabbA.y + aabbA.height, aabbB.y + aabbB.height ) - intersectionBox.y, 0 );
+
+  return intersectionBox;
+}
+
+}
+
 /**
  * Structure to contain internal data
  */
@@ -57,12 +100,15 @@ struct RenderManager::Impl
 {
   Impl( Integration::GlAbstraction& glAbstraction,
         Integration::GlSyncAbstraction& glSyncAbstraction,
+        Integration::GlContextHelperAbstraction& glContextHelperAbstraction,
         Integration::DepthBufferAvailable depthBufferAvailableParam,
-        Integration::StencilBufferAvailable stencilBufferAvailableParam )
-  : context( glAbstraction ),
+        Integration::StencilBufferAvailable stencilBufferAvailableParam,
+        Integration::PartialUpdateAvailable partialUpdateAvailableParam )
+  : context( glAbstraction, &surfaceContextContainer ),
     currentContext( &context ),
     glAbstraction( glAbstraction ),
     glSyncAbstraction( glSyncAbstraction ),
+    glContextHelperAbstraction( glContextHelperAbstraction ),
     renderQueue(),
     instructions(),
     renderAlgorithms(),
@@ -77,12 +123,18 @@ struct RenderManager::Impl
     lastFrameWasRendered( false ),
     programController( glAbstraction ),
     depthBufferAvailable( depthBufferAvailableParam ),
-    stencilBufferAvailable( stencilBufferAvailableParam )
+    stencilBufferAvailable( stencilBufferAvailableParam ),
+    partialUpdateAvailable( partialUpdateAvailableParam ),
+    defaultSurfaceOrientation( 0 )
   {
+     // Create thread pool with just one thread ( there may be a need to create more threads in the future ).
+    threadPool = std::unique_ptr<Dali::ThreadPool>( new Dali::ThreadPool() );
+    threadPool->Initialize( 1u );
   }
 
   ~Impl()
   {
+    threadPool.reset( nullptr ); // reset now to maintain correct destruction order
   }
 
   void AddRenderTracker( Render::RenderTracker* renderTracker )
@@ -122,6 +174,7 @@ struct RenderManager::Impl
   OwnerContainer< Context* >                surfaceContextContainer; ///< List of owned contexts holding the GL state per surface
   Integration::GlAbstraction&               glAbstraction;           ///< GL abstraction
   Integration::GlSyncAbstraction&           glSyncAbstraction;       ///< GL sync abstraction
+  Integration::GlContextHelperAbstraction&  glContextHelperAbstraction; ///< GL context helper abstraction
   RenderQueue                               renderQueue;             ///< A message queue for receiving messages from the update-thread.
 
   // Render instructions describe what should be rendered during RenderManager::Render()
@@ -151,19 +204,29 @@ struct RenderManager::Impl
 
   Integration::DepthBufferAvailable         depthBufferAvailable;     ///< Whether the depth buffer is available
   Integration::StencilBufferAvailable       stencilBufferAvailable;   ///< Whether the stencil buffer is available
+  Integration::PartialUpdateAvailable       partialUpdateAvailable;   ///< Whether the partial update is available
+
+  std::unique_ptr<Dali::ThreadPool>         threadPool;               ///< The thread pool
+  Vector<GLuint>                            boundTextures;            ///< The textures bound for rendering
+  Vector<GLuint>                            textureDependencyList;    ///< The dependency list of binded textures
+  int                                       defaultSurfaceOrientation; ///< defaultSurfaceOrientation for the default surface we are rendering to
 
 };
 
 RenderManager* RenderManager::New( Integration::GlAbstraction& glAbstraction,
                                    Integration::GlSyncAbstraction& glSyncAbstraction,
+                                   Integration::GlContextHelperAbstraction& glContextHelperAbstraction,
                                    Integration::DepthBufferAvailable depthBufferAvailable,
-                                   Integration::StencilBufferAvailable stencilBufferAvailable )
+                                   Integration::StencilBufferAvailable stencilBufferAvailable,
+                                   Integration::PartialUpdateAvailable partialUpdateAvailable )
 {
   RenderManager* manager = new RenderManager;
   manager->mImpl = new Impl( glAbstraction,
                              glSyncAbstraction,
+                             glContextHelperAbstraction,
                              depthBufferAvailable,
-                             stencilBufferAvailable );
+                             stencilBufferAvailable,
+                             partialUpdateAvailable );
   return manager;
 }
 
@@ -235,6 +298,11 @@ void RenderManager::SetDefaultSurfaceRect(const Rect<int32_t>& rect)
   mImpl->defaultSurfaceRect = rect;
 }
 
+void RenderManager::SetDefaultSurfaceOrientation( int orientation )
+{
+  mImpl->defaultSurfaceOrientation = orientation;
+}
+
 void RenderManager::AddRenderer( OwnerPointer< Render::Renderer >& renderer )
 {
   // Initialize the renderer as we are now in render thread
@@ -303,16 +371,17 @@ void RenderManager::SetWrapMode( Render::Sampler* sampler, uint32_t rWrapMode, u
   sampler->mTWrapMode = static_cast<Dali::WrapMode::Type>(tWrapMode);
 }
 
-void RenderManager::AddFrameBuffer( Render::FrameBuffer* frameBuffer )
+void RenderManager::AddFrameBuffer( OwnerPointer< Render::FrameBuffer >& frameBuffer )
 {
-  mImpl->frameBufferContainer.PushBack( frameBuffer );
-  if ( frameBuffer->IsSurfaceBacked() )
+  Render::FrameBuffer* frameBufferPtr = frameBuffer.Release();
+  mImpl->frameBufferContainer.PushBack( frameBufferPtr );
+  if ( frameBufferPtr->IsSurfaceBacked() )
   {
-    frameBuffer->Initialize( *mImpl->CreateSurfaceContext() );
+    frameBufferPtr->Initialize( *mImpl->CreateSurfaceContext() );
   }
   else
   {
-    frameBuffer->Initialize( mImpl->context );
+    frameBufferPtr->Initialize( mImpl->context );
   }
 }
 
@@ -450,9 +519,17 @@ void RenderManager::Render( Integration::RenderStatus& status, bool forceClear )
   const uint32_t count = mImpl->instructions.Count( mImpl->renderBufferIndex );
   const bool haveInstructions = count > 0u;
 
+  DALI_LOG_INFO( gLogFilter, Debug::General,
+                 "Render: haveInstructions(%s) || mImpl->lastFrameWasRendered(%s) || forceClear(%s)\n",
+                 haveInstructions ? "true" : "false",
+                 mImpl->lastFrameWasRendered ? "true" : "false",
+                 forceClear ? "true" : "false" );
+
   // Only render if we have instructions to render, or the last frame was rendered (and therefore a clear is required).
   if( haveInstructions || mImpl->lastFrameWasRendered || forceClear )
   {
+    DALI_LOG_INFO( gLogFilter, Debug::General, "Render: Processing\n" );
+
     // Mark that we will require a post-render step to be performed (includes swap-buffers).
     status.SetNeedsPostRender( true );
 
@@ -460,11 +537,16 @@ void RenderManager::Render( Integration::RenderStatus& status, bool forceClear )
     if ( mImpl->currentContext != &mImpl->context )
     {
       mImpl->currentContext = &mImpl->context;
+
+      if ( mImpl->currentContext->IsSurfacelessContextSupported() )
+      {
+        mImpl->glContextHelperAbstraction.MakeSurfacelessContextCurrent();
+      }
+
       // Clear the current cached program when the context is switched
       mImpl->programController.ClearCurrentProgram();
     }
 
-
     // Upload the geometries
     for( uint32_t i = 0; i < count; ++i )
     {
@@ -508,6 +590,11 @@ void RenderManager::Render( Integration::RenderStatus& status, bool forceClear )
       DoRender( instruction );
     }
 
+    if ( mImpl->currentContext->IsSurfacelessContextSupported() )
+    {
+      mImpl->glContextHelperAbstraction.MakeSurfacelessContextCurrent();
+    }
+
     GLenum attachments[] = { GL_DEPTH, GL_STENCIL };
     mImpl->context.InvalidateFramebuffer(GL_FRAMEBUFFER, 2, attachments);
     for ( auto&& context : mImpl->surfaceContextContainer )
@@ -521,6 +608,10 @@ void RenderManager::Render( Integration::RenderStatus& status, bool forceClear )
       iter->OnRenderFinished();
     }
   }
+  else
+  {
+    DALI_LOG_RELEASE_INFO( "RenderManager::Render: Skip rendering [%d, %d, %d]\n", haveInstructions, mImpl->lastFrameWasRendered, forceClear );
+  }
 
   mImpl->UpdateTrackers();
 
@@ -537,10 +628,87 @@ void RenderManager::Render( Integration::RenderStatus& status, bool forceClear )
   DALI_PRINT_RENDER_END();
 }
 
+bool GetDamagedRect( Rect<int32_t> &viewportRect, RenderInstruction& instruction, Rect<int32_t> &damagedRect )
+{
+  // merge bounding
+  int dx1 = viewportRect.width, dx2 = 0, dy1 = viewportRect.height, dy2 = 0;
+  int checkWidth = static_cast<int>( static_cast<float>( viewportRect.width ) * partialUpdateRatio );
+  int checkHeight = static_cast<int>( static_cast<float>( viewportRect.height ) * partialUpdateRatio );
+  Rect<int32_t> screenRect;
+
+  bool isPartialUpdate = false;
+
+  const RenderListContainer::SizeType renderListCount = instruction.RenderListCount();
+  // Iterate through each render list.
+
+  for( RenderListContainer::SizeType index = 0; index < renderListCount; ++index )
+  {
+    const RenderList* renderList = instruction.GetRenderList( index );
+
+    if( renderList && !renderList->IsEmpty() && renderList->IsPartialUpdateEnabled() )
+    {
+      const std::size_t itemCount = renderList->Count();
+      for( uint32_t itemIndex = 0u; itemIndex < itemCount; ++itemIndex )
+      {
+        const RenderItem& item = renderList->GetItem( itemIndex );
+
+        if( item.mPartialUpdateEnabled )
+        {
+          isPartialUpdate = true;
+
+          screenRect = item.CalculateViewportSpaceAABB( viewportRect.width, viewportRect.height, true );
+
+          dx1 = std::min( screenRect.x, dx1 );
+          dx2 = std::max( screenRect.x + screenRect.width, dx2);
+          dy1 = std::min( screenRect.y, dy1 );
+          dy2 = std::max( screenRect.y + screenRect.height, dy2 );
+
+          if( ( dx2 - dx1 )  > checkWidth && ( dy2 - dy1 ) > checkHeight )
+          {
+            return false;
+          }
+        }
+      }
+    }
+  }
+
+  if( isPartialUpdate )
+  {
+    if( dx1 < 0.0f )
+    {
+      dx1 = 0.0f;
+    }
+    if( dy1 < 0.0f )
+    {
+      dy1 = 0.0f;
+    }
+    if( dx2 > viewportRect.width )
+    {
+      dx2 = viewportRect.width;
+    }
+    if( dy2 > viewportRect.height )
+    {
+      dy2 = viewportRect.height;
+    }
+
+    damagedRect.x = dx1;
+    damagedRect.y = dy1;
+    damagedRect.width = dx2 - dx1;
+    damagedRect.height = dy2 - dy1;
+  }
+
+  return isPartialUpdate;
+}
+
 void RenderManager::DoRender( RenderInstruction& instruction )
 {
   Rect<int32_t> viewportRect;
   Vector4   clearColor;
+  bool isPartialUpdate = false;
+  Rect<int32_t> damagedRect;
+  Rect<int32_t> mergedRect;
+  Dali::ClippingBox scissorBox;
+  Dali::ClippingBox intersectRect;
 
   if ( instruction.mIsClearColorSet )
   {
@@ -552,28 +720,52 @@ void RenderManager::DoRender( RenderInstruction& instruction )
   }
 
   Rect<int32_t> surfaceRect = mImpl->defaultSurfaceRect;
+  int surfaceOrientation = mImpl->defaultSurfaceOrientation;
   Vector4 backgroundColor = mImpl->backgroundColor;
   Integration::DepthBufferAvailable depthBufferAvailable = mImpl->depthBufferAvailable;
   Integration::StencilBufferAvailable stencilBufferAvailable = mImpl->stencilBufferAvailable;
+  Integration::PartialUpdateAvailable partialUpdateAvailable = mImpl->partialUpdateAvailable;
 
   Render::SurfaceFrameBuffer* surfaceFrameBuffer = nullptr;
-  if ( ( instruction.mFrameBuffer != 0 ) && instruction.mFrameBuffer->IsSurfaceBacked() )
+  if ( instruction.mFrameBuffer != 0 )
   {
-    surfaceFrameBuffer = static_cast<Render::SurfaceFrameBuffer*>( instruction.mFrameBuffer );
-
-#if DALI_GLES_VERSION >= 30
-    Context* surfaceContext = surfaceFrameBuffer->GetContext();
-    if ( mImpl->currentContext != surfaceContext )
+    if ( instruction.mFrameBuffer->IsSurfaceBacked() )
     {
-      // Switch the correct context if rendering to a surface
-      mImpl->currentContext = surfaceContext;
-      // Clear the current cached program when the context is switched
-      mImpl->programController.ClearCurrentProgram();
+      surfaceFrameBuffer = static_cast<Render::SurfaceFrameBuffer*>( instruction.mFrameBuffer );
+
+      if ( !surfaceFrameBuffer->IsSurfaceValid() )
+      {
+        // Skip rendering the frame buffer if the render surface becomes invalid
+        return;
+      }
+
+      if ( mImpl->currentContext->IsSurfacelessContextSupported() )
+      {
+        Context* surfaceContext = surfaceFrameBuffer->GetContext();
+        if ( mImpl->currentContext != surfaceContext )
+        {
+          // Switch the correct context if rendering to a surface
+          mImpl->currentContext = surfaceContext;
+          surfaceFrameBuffer->MakeContextCurrent();
+
+          // Clear the current cached program when the context is switched
+          mImpl->programController.ClearCurrentProgram();
+        }
+      }
+
+      surfaceRect = Rect<int32_t>( 0, 0, static_cast<int32_t>( surfaceFrameBuffer->GetWidth() ), static_cast<int32_t>( surfaceFrameBuffer->GetHeight() ) );
+      backgroundColor = surfaceFrameBuffer->GetBackgroundColor();
     }
-#endif
+    else
+    {
+      // Switch to shared context for off-screen buffer
+      mImpl->currentContext = &mImpl->context;
 
-    surfaceRect = Rect<int32_t>( 0, 0, static_cast<int32_t>( surfaceFrameBuffer->GetWidth() ), static_cast<int32_t>( surfaceFrameBuffer->GetHeight() ) );
-    backgroundColor = surfaceFrameBuffer->GetBackgroundColor();
+      if ( mImpl->currentContext->IsSurfacelessContextSupported() )
+      {
+        mImpl->glContextHelperAbstraction.MakeSurfacelessContextCurrent();
+      }
+    }
   }
 
   DALI_ASSERT_DEBUG( mImpl->currentContext->IsGlContextCreated() );
@@ -585,24 +777,77 @@ void RenderManager::DoRender( RenderInstruction& instruction )
   if( instruction.mFrameBuffer )
   {
     instruction.mFrameBuffer->Bind( *mImpl->currentContext );
+
+    if ( !instruction.mFrameBuffer->IsSurfaceBacked() )
+    {
+      // For each offscreen buffer, update the dependency list with the new texture id used by this frame buffer.
+      Render::TextureFrameBuffer* textureFrameBuffer = static_cast<Render::TextureFrameBuffer*>( instruction.mFrameBuffer );
+      mImpl->textureDependencyList.PushBack( textureFrameBuffer->GetTextureId() );
+    }
+  }
+  else
+  {
+    mImpl->currentContext->BindFramebuffer( GL_FRAMEBUFFER, 0u );
+  }
+
+
+  if( surfaceFrameBuffer &&
+      partialUpdateAvailable == Integration::PartialUpdateAvailable::TRUE )
+  {
+    const RenderListContainer::SizeType renderListCount = instruction.RenderListCount();
+    // Iterate through each render list.
+    if( surfaceFrameBuffer->IsPartialUpdateEnabled() )
+    {
+      isPartialUpdate = GetDamagedRect( surfaceRect, instruction, damagedRect ) ;
+    }
+
+    if( !isPartialUpdate )
+    {
+      damagedRect = surfaceRect;
+    }
+
+    mergedRect = surfaceFrameBuffer->SetDamagedRect( damagedRect );
+
+    if( mergedRect.IsEmpty() )
+    {
+      isPartialUpdate = false;
+    }
+    else
+    {
+      scissorBox.x = mergedRect.x;
+      scissorBox.y = mergedRect.y;
+      scissorBox.width = mergedRect.width;
+      scissorBox.height = mergedRect.height;
+    }
   }
 
-  mImpl->currentContext->Viewport( surfaceRect.x,
-                            surfaceRect.y,
-                            surfaceRect.width,
-                            surfaceRect.height );
+  if ( surfaceFrameBuffer )
+  {
+      mImpl->currentContext->Viewport( surfaceRect.x,
+                                surfaceRect.y,
+                                surfaceRect.width,
+                                surfaceRect.height );
 
-  mImpl->currentContext->ClearColor( backgroundColor.r,
-                              backgroundColor.g,
-                              backgroundColor.b,
-                              backgroundColor.a );
+
+      mImpl->currentContext->ClearColor( backgroundColor.r,
+                                  backgroundColor.g,
+                                  backgroundColor.b,
+                                  backgroundColor.a );
+  }
 
   // Clear the entire color, depth and stencil buffers for the default framebuffer, if required.
   // It is important to clear all 3 buffers when they are being used, for performance on deferred renderers
   // e.g. previously when the depth & stencil buffers were NOT cleared, it caused the DDK to exceed a "vertex count limit",
   // and then stall. That problem is only noticeable when rendering a large number of vertices per frame.
-
-  mImpl->currentContext->SetScissorTest( false );
+  if( isPartialUpdate )
+  {
+    mImpl->currentContext->SetScissorTest( true );
+    mImpl->currentContext->Scissor( scissorBox.x, scissorBox.y, scissorBox.width, scissorBox.height );
+  }
+  else
+  {
+    mImpl->currentContext->SetScissorTest( false );
+  }
 
   GLbitfield clearMask = GL_COLOR_BUFFER_BIT;
 
@@ -623,6 +868,12 @@ void RenderManager::DoRender( RenderInstruction& instruction )
 
   mImpl->currentContext->Clear( clearMask, Context::FORCE_CLEAR );
 
+  if( isPartialUpdate )
+  {
+    mImpl->currentContext->SetScissorTest( false );
+  }
+
+
   if( !instruction.mIgnoreRenderToFbo && ( instruction.mFrameBuffer != 0 ) )
   {
     if ( instruction.mFrameBuffer->IsSurfaceBacked() ) // Surface rendering
@@ -632,7 +883,7 @@ void RenderManager::DoRender( RenderInstruction& instruction )
         // For glViewport the lower-left corner is (0,0)
         // For glViewport the lower-left corner is (0,0)
         const int32_t y = ( surfaceRect.height - instruction.mViewport.height ) - instruction.mViewport.y;
-        viewportRect.Set( instruction.mViewport.x,  y, instruction.mViewport.width, instruction.mViewport.height );
+        viewportRect.Set( instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height );
       }
       else
       {
@@ -651,6 +902,7 @@ void RenderManager::DoRender( RenderInstruction& instruction )
       {
         viewportRect.Set( 0, 0, instruction.mFrameBuffer->GetWidth(), instruction.mFrameBuffer->GetHeight() );
       }
+      surfaceOrientation = 0;
     }
   }
   else // No Offscreen frame buffer rendering
@@ -662,7 +914,7 @@ void RenderManager::DoRender( RenderInstruction& instruction )
       {
         // For glViewport the lower-left corner is (0,0)
         const int32_t y = ( instruction.mFrameBuffer->GetHeight() - instruction.mViewport.height ) - instruction.mViewport.y;
-        viewportRect.Set( instruction.mViewport.x,  y, instruction.mViewport.width, instruction.mViewport.height );
+        viewportRect.Set( instruction.mViewport.x, y, instruction.mViewport.width, instruction.mViewport.height );
       }
       else
       {
@@ -675,6 +927,13 @@ void RenderManager::DoRender( RenderInstruction& instruction )
     }
   }
 
+  if ( surfaceOrientation == 90 || surfaceOrientation == 270 )
+  {
+    int temp = viewportRect.width;
+    viewportRect.width = viewportRect.height;
+    viewportRect.height = temp;
+  }
+
   mImpl->currentContext->Viewport(viewportRect.x, viewportRect.y, viewportRect.width, viewportRect.height);
 
   if ( instruction.mIsClearColorSet )
@@ -686,18 +945,95 @@ void RenderManager::DoRender( RenderInstruction& instruction )
 
     // Clear the viewport area only
     mImpl->currentContext->SetScissorTest( true );
-    mImpl->currentContext->Scissor( viewportRect.x, viewportRect.y, viewportRect.width, viewportRect.height );
+    if( isPartialUpdate )
+    {
+      intersectRect = IntersectAABB( scissorBox, viewportRect );
+      mImpl->currentContext->Scissor( intersectRect.x, intersectRect.y, intersectRect.width, intersectRect.height );
+    }
+    else
+    {
+      mImpl->currentContext->Scissor( viewportRect.x, viewportRect.y, viewportRect.width, viewportRect.height );
+    }
     mImpl->currentContext->ColorMask( true );
     mImpl->currentContext->Clear( GL_COLOR_BUFFER_BIT , Context::CHECK_CACHED_VALUES );
     mImpl->currentContext->SetScissorTest( false );
   }
 
+  // Clear the list of bound textures
+  mImpl->boundTextures.Clear();
+
   mImpl->renderAlgorithms.ProcessRenderInstruction(
       instruction,
       *mImpl->currentContext,
       mImpl->renderBufferIndex,
       depthBufferAvailable,
-      stencilBufferAvailable );
+      stencilBufferAvailable,
+      mImpl->boundTextures,
+      surfaceOrientation,
+      scissorBox );
+
+  // Synchronise the FBO/Texture access when there are multiple contexts
+  if ( mImpl->currentContext->IsSurfacelessContextSupported() )
+  {
+    // Check whether any binded texture is in the dependency list
+    bool textureFound = false;
+
+    if ( mImpl->boundTextures.Count() > 0u && mImpl->textureDependencyList.Count() > 0u )
+    {
+      for ( auto textureId : mImpl->textureDependencyList )
+      {
+
+        textureFound = std::find_if( mImpl->boundTextures.Begin(), mImpl->boundTextures.End(),
+                                     [textureId]( GLuint id )
+                                     {
+                                       return textureId == id;
+                                     } ) != mImpl->boundTextures.End();
+      }
+    }
+
+    if ( textureFound )
+    {
+
+      if ( !instruction.mFrameBuffer || !instruction.mFrameBuffer->IsSurfaceBacked() )
+      {
+        // For off-screen buffer
+
+        // Wait until all rendering calls for the currently context are executed
+        mImpl->glContextHelperAbstraction.WaitClient();
+
+        // Clear the dependency list
+        mImpl->textureDependencyList.Clear();
+      }
+      else
+      {
+        // For surface-backed frame buffer
+
+        // Worker thread lambda function
+        auto& glContextHelperAbstraction = mImpl->glContextHelperAbstraction;
+        auto workerFunction = [&glContextHelperAbstraction]( int workerThread )
+        {
+          // Switch to the shared context in the worker thread
+          glContextHelperAbstraction.MakeSurfacelessContextCurrent();
+
+          // Wait until all rendering calls for the shared context are executed
+          glContextHelperAbstraction.WaitClient();
+
+          // Must clear the context in the worker thread
+          // Otherwise the shared context cannot be switched to from the render thread
+          glContextHelperAbstraction.MakeContextNull();
+        };
+
+        auto future = mImpl->threadPool->SubmitTask( 0u, workerFunction );
+        if ( future )
+        {
+          mImpl->threadPool->Wait();
+
+          // Clear the dependency list
+          mImpl->textureDependencyList.Clear();
+        }
+      }
+    }
+  }
 
   if( instruction.mRenderTracker && ( instruction.mFrameBuffer != 0 ) )
   {
@@ -712,6 +1048,10 @@ void RenderManager::DoRender( RenderInstruction& instruction )
   {
     surfaceFrameBuffer->PostRender();
   }
+  else
+  {
+    mImpl->currentContext->Flush();
+  }
 }
 
 } // namespace SceneGraph