[Bug 28869] Neverwinter Nights fails to load

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=28869

--- Comment #8 from Ken Thomases <ken at codeweavers.com> ---
(In reply to comment #3)

Henri said:
> I don't think I can fix this without moving GL processing into its own
> thread. What happens is that the application creates a GL context, makes it
> current, and then immediately destroys the DC that context was created on.
> This works more or less as long as that context stays current. However, when
> the application then also uses ddraw we have to make a different GL context
> current for wined3d. Since the original DC was destroyed, there's no way for
> wined3d to restore the original GL context after it's done.

I probably come off as WGL-extension-happy but we could solve this with an
extension.  Although wglMakeCurrent() requires passing in a DC, we could
provide an alternative function which makes the context current with its
last-used drawable(s).  The X11 driver already stores sufficient information in
the context object to do that.  The Mac driver doesn't even require that.  The
Mac APIs separate the notion of making a context current for the thread from
setting its drawable, so we can do just the former.

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