From 3f32ccada6cf3533ab1f4aeb4a66df9cdc37bd2b Mon Sep 17 00:00:00 2001
From: Marisa Heit <rheit@users.noreply.github.com>
Date: Tue, 1 Nov 2016 22:54:27 -0500
Subject: [PATCH] Zero In2D before calling Flip()

- Fixes an assert when resizing the window in windowed mode. Flip() can call
  V_OutputResized() in windowed mode.
---
 src/win32/fb_d3d9.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/win32/fb_d3d9.cpp b/src/win32/fb_d3d9.cpp
index 06bfa05691..8bb680dbda 100644
--- a/src/win32/fb_d3d9.cpp
+++ b/src/win32/fb_d3d9.cpp
@@ -1092,6 +1092,7 @@ void D3DFB::Update ()
 			DrawRateStuff();
 			DrawPackedTextures(d3d_showpacks);
 			EndBatch();		// Make sure all batched primitives are drawn.
+			In2D = 0;
 			Flip();
 		}
 		In2D = 0;