From c7661d5af5b230d567cabd83009da6762a5e91f7 Mon Sep 17 00:00:00 2001
From: Caolán McNamara <caolanm@redhat.com>
Date: Tue, 10 Jun 2014 13:43:35 +0100
Subject: coverity#1222231 Division or modulo by zero

Change-Id: Id914167a72782741e67ba97683445aec6151fdd6
---
 vcl/source/bitmap/bitmapscalesuper.cxx | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'vcl/source/bitmap')

diff --git a/vcl/source/bitmap/bitmapscalesuper.cxx b/vcl/source/bitmap/bitmapscalesuper.cxx
index b95f4ce96b0e..c48674006b1e 100644
--- a/vcl/source/bitmap/bitmapscalesuper.cxx
+++ b/vcl/source/bitmap/bitmapscalesuper.cxx
@@ -496,9 +496,16 @@ void scalePalleteGeneral2(BitmapReadAccess* pAcc, BitmapWriteAccess* pWAcc,
                 else if ( nLineRange == i )
                     nWeightY = pMapFY[ nBottom ];
 
-                nSumB += nWeightY * ( nSumRowB / nTotalWeightX );
-                nSumG += nWeightY * ( nSumRowG / nTotalWeightX );
-                nSumR += nWeightY * ( nSumRowR / nTotalWeightX );
+                if (nTotalWeightX)
+                {
+                    nSumRowB /= nTotalWeightX;
+                    nSumRowG /= nTotalWeightX;
+                    nSumRowR /= nTotalWeightX;
+                }
+
+                nSumB += nWeightY * nSumRowB;
+                nSumG += nWeightY * nSumRowG;
+                nSumR += nWeightY * nSumRowR;
                 nTotalWeightY += nWeightY;
             }
 
-- 
cgit