[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [48681] trunk/blender/source/blender/ render/intern/source/external_engine.c: fix for rare crash we have with some mango files.

[Campbell Barton]

Revision: 48681
          
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=48681
Author:   campbellbarton
Date:     2012-07-06 14:24:41 +0000 (Fri, 06 Jul 2012)
Log Message:
-----------
fix for rare crash we have with some mango files.

Modified Paths:
--------------
    trunk/blender/source/blender/render/intern/source/external_engine.c

Modified: trunk/blender/source/blender/render/intern/source/external_engine.c
===================================================================
--- trunk/blender/source/blender/render/intern/source/external_engine.c 
2012-07-06 13:36:54 UTC (rev 48680)
+++ trunk/blender/source/blender/render/intern/source/external_engine.c 
2012-07-06 14:24:41 UTC (rev 48681)
@@ -173,13 +173,17 @@
        disprect.ymax = y + h;
 
        result = render_result_new(re, &disprect, 0, RR_USE_MEM);
-       BLI_addtail(&engine->fullresult, result);
-       
-       result->tilerect.xmin += re->disprect.xmin;
-       result->tilerect.xmax += re->disprect.xmin;
-       result->tilerect.ymin += re->disprect.ymin;
-       result->tilerect.ymax += re->disprect.ymin;
 
+       /* can be NULL if we CLAMP the width or height to 0 */
+       if (result) {
+               BLI_addtail(&engine->fullresult, result);
+
+               result->tilerect.xmin += re->disprect.xmin;
+               result->tilerect.xmax += re->disprect.xmin;
+               result->tilerect.ymin += re->disprect.ymin;
+               result->tilerect.ymax += re->disprect.ymin;
+       }
+
        return result;
 }
 

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