From 76d71bda926d11eb1315bf1e0fe36fa39d87ec59 Mon Sep 17 00:00:00 2001
From: Monster Iestyn <iestynjealous@ntlworld.com>
Date: Fri, 25 Mar 2016 19:43:17 +0000
Subject: [PATCH] destend now scales the added-on patch width properly if
 needed

---
 src/v_video.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/v_video.c b/src/v_video.c
index df81ac6d6..3eb71bb06 100644
--- a/src/v_video.c
+++ b/src/v_video.c
@@ -477,7 +477,16 @@ void V_DrawFixedPatch(fixed_t x, fixed_t y, fixed_t pscale, INT32 scrn, patch_t
 	}
 
 	deststart = desttop;
-	destend = desttop + SHORT(patch->width) * dupx;
+	if (pscale != FRACUNIT) // scale width properly
+	{
+		fixed_t pwidth = SHORT(patch->width)<<FRACBITS;
+		pwidth = FixedMul(pwidth, pscale);
+		pwidth = FixedMul(pwidth, dupx<<FRACBITS);
+		pwidth >>= FRACBITS;
+		destend = desttop + pwidth;
+	}
+	else
+		destend = desttop + SHORT(patch->width) * dupx;
 
 	for (col = 0; (col>>FRACBITS) < SHORT(patch->width); col += colfrac, ++x, desttop++)
 	{