From 243cbc02ec54502f91f09485dd4c751d09abcbfb Mon Sep 17 00:00:00 2001
From: Jaime Passos <lazymyuutsu@gmail.com>
Date: Sat, 9 Nov 2019 17:53:05 -0300
Subject: [PATCH] Big Miss Steak

---
 src/r_plane.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/r_plane.c b/src/r_plane.c
index 53b58c2743..89a76aed27 100644
--- a/src/r_plane.c
+++ b/src/r_plane.c
@@ -1007,6 +1007,8 @@ void R_DrawSinglePlane(visplane_t *pl)
 			R_CheckFlatLength(W_LumpLength(levelflat->u.flat.lumpnum));
 			// Raw flats always have dimensions that are powers-of-two numbers.
 			ds_powersoftwo = true;
+			if (spanfunc == basespanfunc)
+				spanfunc = mmxspanfunc;
 			break;
 		default:
 			switch (type)
-- 
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