From ebae963884ff0dfd8004395ac898f3578b4279a8 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.a.alekhin@gmail.com>
Date: Thu, 2 Feb 2017 21:01:28 +0300
Subject: [PATCH] drawing: workaround MSVC2010 32-bit compiler bug

---
 modules/core/src/drawing.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules/core/src/drawing.cpp b/modules/core/src/drawing.cpp
index d0b6fb13b1..91baec29d5 100644
--- a/modules/core/src/drawing.cpp
+++ b/modules/core/src/drawing.cpp
@@ -1185,8 +1185,12 @@ FillConvexPoly( Mat& img, const Point2l* v, int npts, const void* color, int lin
                         edges--;
                     }
 
-                    xs <<= XY_SHIFT - shift;
-                    xe = v[idx].x << (XY_SHIFT - shift);
+                    xe = v[idx].x;
+                    if (XY_SHIFT - shift != 0)
+                    {
+                        xs <<= XY_SHIFT - shift;
+                        xe <<= XY_SHIFT - shift;
+                    }
 
                     /* no more edges */
                     if( y >= ty)