Commits on Dec 4, 2015

1. Fix an alpha scaling issue in the box shadow shader.

   

   pcwalton committed Dec 4, 2015
   09be868

2. Don't try to fill the center area of a box shadow if the shadow isn't …

   big enough.

   

   pcwalton committed Dec 4, 2015
   61d6ad4

3. Stop trying to render box shadow edges if they have zero size.

   

   pcwalton committed Dec 4, 2015
   67194a5

4. Take the border-radius into account when computing the clip region for …

   outset box shadow corners.
   
   Border radii are currently ignored for clip-out operations, so this
   isn't sufficient to actually render them, but it'll help once the
   clipper is upgraded to support those.

   

   pcwalton committed Dec 4, 2015
   8bd300b

5. Prevent overlap of box shadow corners when the size of the blur is …

   larger than the size of the box.
   
   This isn't sufficient to render them correctly, because proper rendering
   in this case needs a separate shader (or at least modifications to the
   one we currently use). But it improves the look a lot.

   

   pcwalton committed Dec 4, 2015
   53c9441