check if we actually have blur before updating blur geometries

(bzr r4151.1.4)

1 files changed, 4 insertions, 1 deletions

diff --git a/unity-shared/BackgroundEffectHelper.cpp b/unity-shared/BackgroundEffectHelper.cpp
index f4ce83147..b998f7b77 100644
--- a/unity-shared/BackgroundEffectHelper.cpp
+++ b/unity-shared/BackgroundEffectHelper.cpp
@@ -147,6 +147,9 @@ bool BackgroundEffectHelper::UpdateOwnerGeometry()
 
 void BackgroundEffectHelper::UpdateBlurGeometries()
 {
+ if (blur_type == BLUR_NONE)
+ return;
+
 int radius = GetBlurRadius();
 blur_geometries_.clear();
 blur_geometries_.reserve(registered_list_.size());
@@ -157,7 +160,7 @@ void BackgroundEffectHelper::UpdateBlurGeometries()
 * monitor geometry, but that is done at paint time */
 auto const& blur_geo = bg_effect_helper->requested_blur_geometry_;
 
- if (!blur_geo.IsNull() && blur_type != BLUR_NONE)
+ if (!blur_geo.IsNull())
 blur_geometries_.push_back(blur_geo.GetExpand(radius, radius));
 }
 }