diff --git a/include/surfaceflinger/ISurfaceComposer.h b/include/surfaceflinger/ISurfaceComposer.h
index 6533600..b181781 100644
--- a/include/surfaceflinger/ISurfaceComposer.h
+++ b/include/surfaceflinger/ISurfaceComposer.h
@@ -43,6 +43,7 @@
         eSecure             = 0x00000080,
         eNonPremultiplied   = 0x00000100,
         ePushBuffers        = 0x00000200,
+        eOpaque             = 0x00000400,
 
         eFXSurfaceNormal    = 0x00000000,
         eFXSurfaceBlur      = 0x00010000,
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index fb76720..1b06843 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -171,7 +171,8 @@
     mReqHeight = h;
 
     mSecure = (flags & ISurfaceComposer::eSecure) ? true : false;
-    mNeedsBlending = (info.h_alpha - info.l_alpha) > 0;
+    mNeedsBlending = (info.h_alpha - info.l_alpha) > 0 &&
+            (flags & ISurfaceComposer::eOpaque) == 0;
 
     // we use the red index
     int displayRedSize = displayInfo.getSize(PixelFormatInfo::INDEX_RED);