[cairo] cairo_in_fill on boundaries broken?
otte at gnome.org
Fri Apr 18 14:38:10 PDT 2008
while writing tests for Swfdec I found that the following code behaves
cairo_surface_t *surface = cairo_image_surface_create
(CAIRO_FORMAT_ARGB32, 1, 1);
cairo_t *cr = cairo_create (surface);
cairo_rectangle (cr, 0, 0, 10, 10);
printf ("%s\n", cairo_in_fill (cr, 0, 0) ? "yes" : "no");
printf ("%s\n", cairo_in_fill (cr, 10, 10) ? "yes" : "no");
I would have expected it to print "yes" in the first case and "no" in
the second case, but it turns out it's the opposite behavior. So I'm
wondering: Is the behavior of cairo_in_fill on boundaries supposed to
be this way, is this a bug or is the behavior undefined and might
change in the future?
Please be aware that in this case I'm wondering about there are no
rounding problems, so that is not the problem.
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