Re: ABI rules on accessing colormap->colors?

[Peter Zelezny <pzel dodo com au>]

On Mon, 15 Sep 2003 07:51:58 -0400
Owen Taylor <otaylor redhat com> wrote:

> > Basically, I'm doing a:
> >     gdk_colormap_alloc_color (cmap, color, TRUE, TRUE);
> > But on a most 8-bit PseudoColor displays, it fails, since the cmap is
> > often full. So I fall back to traversing the cmap->colors to see which is
> > the closest colour available. It gives pretty good results.
> >
> > I tried calling gdk_colormap_alloc_color() with the "best_match" arg TRUE,
> > hoping this would be done for me, but it is not.
>
> Well, why don't you debug that? If you're right and there is a bug
> there, then we can discuss workarounds, once we know what that bug is.

I didn't realize it could be a bug, I don't know much about Visuals.

Here's a testcase: http://213.197.30.23/cmap.c

Comments at the top should give anyone an easy way to reproduce it. When I
run the program, it fails everytime. No problem in TrueColor however.