Patch by Luca for 449709

diff --git a/src/display/nr-filter.cpp b/src/display/nr-filter.cpp
index 3ca2b0dbaedd0ba2a13930359a9f341978784c7c..d0e0ec11e4e5d6c8c439e3f2af27d28028424075 100644 (file)
--- a/src/display/nr-filter.cpp
+++ b/src/display/nr-filter.cpp
@@ -168,6 +168,8 @@ int Filter::render(NRArenaItem const *item, NRPixBlock *pb)
     // TODO: with filterRes of 0x0 should return an empty image
     std::pair<double,double> resolution
         = _filter_resolution(filter_area, trans, filterquality);
+    if(!(resolution.first > 0 && resolution.second > 0))
+       return 1;
     units.set_resolution(resolution.first, resolution.second);
     if (_x_pixels > 0) {
         units.set_automatic_resolution(false);