From e565bbcea602a005481218400e58a84fd7147838 Mon Sep 17 00:00:00 2001
From: Jeff Muizelaar <jrmuizel@gmail.com>
Date: Sat, 8 Jun 2019 03:58:36 +0000
Subject: [PATCH] Bug 1556470. Add a Flush() to
 DrawTargetD2D1::IntoLuminanceSource(). r=bas

I needed this change to make things work with my CreateClippedDrawTarget. It
seems reasonable but I can't justify it rigorously.

Differential Revision: https://phabricator.services.mozilla.com/D33527

--HG--
extra : moz-landing-system : lando
---
 gfx/2d/DrawTargetD2D1.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gfx/2d/DrawTargetD2D1.cpp b/gfx/2d/DrawTargetD2D1.cpp
index 95dfa4d04503..5c32c08d78da 100644
--- a/gfx/2d/DrawTargetD2D1.cpp
+++ b/gfx/2d/DrawTargetD2D1.cpp
@@ -155,6 +155,8 @@ already_AddRefed<SourceSurface> DrawTargetD2D1::IntoLuminanceSource(
     return DrawTarget::IntoLuminanceSource(aLuminanceType, aOpacity);
   }
 
+  Flush();
+
   mLuminanceEffect->SetInput(0, mBitmap);
 
   RefPtr<ID2D1Image> luminanceOutput;