From c6605360b37c3c2ac365f436b193722594347f51 Mon Sep 17 00:00:00 2001
From: Oleg Romashin <romaxa@gmail.com>
Date: Mon, 26 Mar 2012 12:56:10 -0400
Subject: [PATCH] Bug 739095 - Offscreen context without offscreen texture does
 not need YFlip. r=jgilbert

---
 gfx/layers/opengl/CanvasLayerOGL.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gfx/layers/opengl/CanvasLayerOGL.cpp b/gfx/layers/opengl/CanvasLayerOGL.cpp
index eadd8ea24a9..73cdf07150f 100644
--- a/gfx/layers/opengl/CanvasLayerOGL.cpp
+++ b/gfx/layers/opengl/CanvasLayerOGL.cpp
@@ -116,7 +116,7 @@ CanvasLayerOGL::Initialize(const Data& aData)
     mCanvasGLContext = aData.mGLContext;
     mGLBufferIsPremultiplied = aData.mGLBufferIsPremultiplied;
 
-    mNeedsYFlip = true;
+    mNeedsYFlip = mCanvasGLContext->GetOffscreenTexture() != 0;
   } else {
     NS_WARNING("CanvasLayerOGL::Initialize called without surface or GL context!");
     return;