Fix a crash in the warp layer when the bounding_rect gets very small.

[synfig.git] / synfig-core / trunk / src / modules / lyr_std / warp.cpp

diff --git a/synfig-core/trunk/src/modules/lyr_std/warp.cpp b/synfig-core/trunk/src/modules/lyr_std/warp.cpp
index 24624ae..60a41c7 100644 (file)
--- a/synfig-core/trunk/src/modules/lyr_std/warp.cpp
+++ b/synfig-core/trunk/src/modules/lyr_std/warp.cpp
@@ -614,6 +614,16 @@ Warp::accelerated_render(Context context,Surface *surface,int quality, const Ren
        Point min_point(bounding_rect.get_min());
        Point max_point(bounding_rect.get_max());
 
+       // we're going to divide by the different of these pairs soon;
+       // if they're the same, we'll be dividing by zero, and we don't
+       // want to do that!
+       // \todo what should we do in this case?
+       if (min_point[0] == max_point[0] || min_point[1] == max_point[1])
+       {
+               surface->set_wh(renddesc.get_w(),renddesc.get_h());
+               surface->clear();
+               return true;
+       }
 
        if(tl[0]>br[0])
        {