[4.0] Enable premultiplied alpha in text visual

Change-Id: Idaf85e6f4d6699a8ce5ea431dba5ed23c081be30

diff --git a/dali-toolkit/internal/visuals/text/text-visual.cpp b/dali-toolkit/internal/visuals/text/text-visual.cpp
index f274321..d813ee0 100755 (executable)
--- a/dali-toolkit/internal/visuals/text/text-visual.cpp
+++ b/dali-toolkit/internal/visuals/text/text-visual.cpp
@@ -698,6 +698,7 @@ void TextVisual::UpdateRenderer()
       mImpl->mRenderer.RegisterProperty( "uHasMultipleTextColors", static_cast<float>( hasMultipleTextColors ) );
 
       mImpl->mRenderer.SetProperty( Renderer::Property::BLEND_MODE, BlendMode::ON);
+      mImpl->mRenderer.SetProperty( Renderer::Property::BLEND_PRE_MULTIPLIED_ALPHA, true );
 
       //Register transform properties
       mImpl->mTransform.RegisterUniforms( mImpl->mRenderer, Direction::LEFT_TO_RIGHT );