[mapguide-commits] r9020 - sandbox/adsk/3.1n/Common/Renderers

[svn_mapguide at osgeo.org]

Author: christinebao
Date: 2016-08-11 21:15:37 -0700 (Thu, 11 Aug 2016)
New Revision: 9020

Modified:
   sandbox/adsk/3.1n/Common/Renderers/AGGRenderer.cpp
Log:
#2736: Server crash when layer contains complicate symbols https://trac.osgeo.org/mapguide/ticket/2736

Refine submission 9019.  

Modified: sandbox/adsk/3.1n/Common/Renderers/AGGRenderer.cpp
===================================================================
--- sandbox/adsk/3.1n/Common/Renderers/AGGRenderer.cpp	2016-08-10 06:40:17 UTC (rev 9019)
+++ sandbox/adsk/3.1n/Common/Renderers/AGGRenderer.cpp	2016-08-12 04:15:37 UTC (rev 9020)
@@ -1806,9 +1806,9 @@
         // clear the affected region of the alpha mask
         agg::gray8 cc(0);
 
-        unsigned width = (int)imaxx - (int)iminx + 1;
-        if (width > 0)
-        {
+        if (imaxx >= iminx)
+        {        
+            unsigned width = (int)imaxx - (int)iminx + 1;
             for (int y = iminy; y <= imaxy; ++y)
                 c()->mask_pixf->copy_hline(iminx, y, width, cc);
         }