Re: [openvrml-develop] material-rendering bug (was ANN: OpenVRML 0.18.5)

[Braden M. <br...@en...>]

On 3/29/10 4:58 PM, Braden McDaniel wrote:
> I'm still trying to get a handle on exactly what's going on
> here.  I'm getting closer; I think I'm looking at a race between some
> stream handling threads.  But I haven't isolated it yet.

This may or may not be the case.  Regardless, there is definitely
something screwy going on in the PNG decoder.  I think what's happening
is that for some images, the decoder is not detecting the number of
pixel components correctly and consequently isn't giving libpng a big
enough buffer to work with.  libpng calls then proceed to stomp all over
memory (which on my machine appears consistently to be the browser's
node_metatype_registry); hilarity ensues.

-- 
Braden McDaniel <br...@en...>