From: Lorien Dunn <loriend@...>
Date: 2002-04-18T10:28:35+09:00
Subject: Re: visual c, ruby, and fastcall hassle

On Thursday 18 April 2002 10:11 am, nobu.nokada@softhome.net wrote:
> Hi,
>
> At Thu, 18 Apr 2002 02:04:01 +0900,
>
> Lorien Dunn wrote:
> > > > 	today I tried to embed ruby in a computer game I'm working on. It
> > > > uses Auran's Jet 3d engine (www.auranjet.com), which is closed
> > > > source, and requires projects using it to be compiled with fastcall
> > > > enabled. Fastcall is a calling convention that does not permit
> > > > variable numbers of arguments for the sake of speed. However, by
> > > > prefixing every function prototype in "ruby.h" and "intern.h" with
> > > > __cdecl I succeeded in building the app.
> > >
> > > Since __cdecl is default, that Jet 3d engine's header should
> > > have __fastcall?
> >
> > 	No, because you have to set __fastcall as default in the project
> > settings. If all the Jet headers used __fastcall it would not be a
> > problem.
>
> I meant, __fastcall is NOT default, so Jet header SHOULD use
> __fastcall.  It's a Jet's issue.
>
> And you mean <http://welcome.to/Jet3D-University>?  If so,
> apparently it's not closed, and I downloaded Jet3D-2.0.5.zip
> and found include/jet/Basetypes.h had:
>
> #define JETCC   _fastcall


No, that isn't the URL, that is a completely different Jet that is based on 
"Genesis 3d" which is very crappy. Auran Jet IS commercial (it cost them $Aus 
3m, and costs $Aus 100 for a non-commercial license and $Aus 60k for a  
commercial). They won't give you the source unless you sign a nasty NDA. 
	I agree it is a jet issue. But is msvc ruby is going to be the default for 
ruby on windoze then perhaps it should be sorted out. I've used at least 2 
other closed source libs that were compiled with __fastcall set to default.
	I will experiment more with casting.

Lorien