From e0a94da7c7b657cebbb9e07c861054540706d5da Mon Sep 17 00:00:00 2001
From: John Tsiombikas <nuclear@mutantstargoat.com>
Date: Sat, 15 Sep 2018 19:32:52 +0300
Subject: [PATCH 1/1] fixed overdlow when calculating winding of large
 polygons in the rasterizert

---
 src/polytmpl.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/polytmpl.h b/src/polytmpl.h
index d61ac8e..2147666 100644
--- a/src/polytmpl.h
+++ b/src/polytmpl.h
@@ -96,7 +96,7 @@ void POLYFILL(struct pvertex *pv, int nverts)
 	int winding = 0;
 	for(i=0; i<nverts; i++) {
 		int next = NEXTIDX(i);
-		winding += (pv[next].x - pv[i].x) * (pv[next].y + pv[i].y);
+		winding += ((pv[next].x - pv[i].x) >> 8) * ((pv[next].y + pv[i].y) >> 8);
 	}
 
 	/* +1 to avoid crashing due to off-by-one rounding errors in the rasterization */
-- 
1.7.10.4