From ac4405a4ec29ce5c7a324117c9b45c1f7d62fa09 Mon Sep 17 00:00:00 2001
From: Hermet Park <chuneon.park@samsung.com>
Date: Thu, 13 Aug 2020 19:50:46 +0900
Subject: [PATCH] sw_engine: fix potential data overflow.

Change-Id: Ie800fda74d44ad3741f7a92f12681f7f753ee50c
---
 src/lib/sw_engine/tvgSwMath.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/sw_engine/tvgSwMath.cpp b/src/lib/sw_engine/tvgSwMath.cpp
index 36760481..5ac3912a 100644
--- a/src/lib/sw_engine/tvgSwMath.cpp
+++ b/src/lib/sw_engine/tvgSwMath.cpp
@@ -377,7 +377,7 @@ SwFixed mathLength(SwPoint& pt)
     _polarize(v);
     v.x = _downscale(v.x);
 
-    if (shift > 0) return (v.x + (1 << (shift -1))) >> shift;
+    if (shift > 0) return (v.x + (static_cast<SwFixed>(1) << (shift -1))) >> shift;
     return static_cast<SwFixed>((uint32_t)v.x << -shift);
 }