From 922603fbcaee1b3877e8dcc4a9f87e5a159b5305 Mon Sep 17 00:00:00 2001
From: toasterbabe <rollerorbital@gmail.com>
Date: Mon, 24 Apr 2017 20:39:32 +0100
Subject: [PATCH] Fix V_DrawCroppedPatch's handling of topdeltas.

---
 src/v_video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/v_video.c b/src/v_video.c
index 3c025d306..b4bd0cd58 100644
--- a/src/v_video.c
+++ b/src/v_video.c
@@ -845,7 +845,7 @@ void V_DrawCroppedPatch(fixed_t x, fixed_t y, fixed_t pscale, INT32 scrn, patch_
 			dest = desttop;
 			dest += FixedInt(FixedMul(topdelta<<FRACBITS,fdup))*vid.width;
 
-			for (ofs = sy<<FRACBITS; dest < deststop && (ofs>>FRACBITS) < column->length && (ofs>>FRACBITS) < h; ofs += rowfrac)
+			for (ofs = sy<<FRACBITS; dest < deststop && (ofs>>FRACBITS) < column->length && ((ofs>>FRACBITS) + topdelta) < h; ofs += rowfrac)
 			{
 				if (dest >= screens[scrn&V_PARAMMASK]) // don't draw off the top of the screen (CRASH PREVENTION)
 					*dest = source[ofs>>FRACBITS];