RE: [LIBART] problem with art_rgb_svp_alpha()

["Jason Priebe" <priebe mi-corporation com>]

I just played with the different ART_PATH_STROKE_* flags and
modified the miter limit.  Still no luck.  The odd thing is that
I can get this sequence of points to render at a scale level
of 1.0, but if I scale up all the points by 1.5, it goes into
the infinite loop.

If I scale by 2.0 or 1.51, it does not get stuck in the loop.
I'm wondering if there are some rounding errors introduced
during the scaling are causing some weird precondition in the
points that leads to the arithmetic breaking down somewhere.

This may be unrelated, but I see a lot of warnings like these
during rendering:

colinear!
x_order_2: colinear!

It sounds like I really need to get familiar with svps and the
rendering code that uses them in order to find out why it is
getting stuck in this loop.  I was hoping to avoid digging through
that code.  :-(

Jason Priebe
Mi-Co
http://www.mi-corporation.com/ 

> Have you tried setting the mitter limit to something different from 0?
> Otherwise I don't know. Maybe some ART_PATH_STROKE_* flags are not all 
> implemented...
> 
> Anyway if you find out, please let me know.
> Eric.
>

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