From 54197bdf4f11fdacb7a7cf4359398be468ec2ba8 Mon Sep 17 00:00:00 2001
From: eihrul <eihrul@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Sat, 5 Feb 2011 12:22:27 +0000
Subject: [PATCH] ensure UndoCommand wraps properly at 0

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@10806 d7cf8633-e32d-0410-b094-e92efae38249
---
 dpsoftrast.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dpsoftrast.c b/dpsoftrast.c
index 45b62bd6..b43fa29b 100644
--- a/dpsoftrast.c
+++ b/dpsoftrast.c
@@ -850,6 +850,8 @@ static void DPSOFTRAST_UndoCommand(int size)
 	int freecommand = dpsoftrast.commandpool.freecommand;
 	int usedcommands = dpsoftrast.commandpool.usedcommands;
 	freecommand -= size;
+	if (freecommand < 0)
+		freecommand += DPSOFTRAST_DRAW_MAXCOMMANDPOOL;
 	usedcommands -= size;
 	dpsoftrast.commandpool.freecommand = freecommand;
 	dpsoftrast.commandpool.usedcommands = usedcommands;
-- 
2.39.2