[Mono-devel-list] mono SDL linux/win32 SDL.DLL - my brain hurts!

[Paul Betts]

Have you seen the Tao framework? I think it's more up to date (and does
more stuff) than SDL.NET; I'm almost positive it also wraps SDL.

Paul Betts
betts.62 at osu.edu

On Thu, 2005-07-21 at 00:50 -0400, ted leslie wrote:
> I got it working on the really old SDL.NET package that had Make/Build support for Mono,
> I needed to put up the SDL-Dev libs too !! arggh!!! :(
> 
> But still, i'd love to be able to get a recent  (this year) build for SDL.NET working,
> as it looks really different (the new one) then the older one.
> 
> Also if anyone could write a small, or "point to" a resource talking to the:
> "How you write a wrapper in C#/Mono/Linux to wrap a standard library in linux"
> that would be appreciated.
> 
> and if someone could build the latest SDL.NET and post it somewhere that would be very much appreciated as well.
> 
> -tl
> 
> 
> On Thu, Jul 21, 2005 at 03:36:48PM +1200, David Mitchell wrote:
> > Try this:
> > 
> > http://prdownloads.sourceforge.net/cs-sdl/SdlDotNet-3.1.2-1.zip?download
> > 
> > Looks like the latest linux version to me.
> > 
> > David
> > 
> > ted leslie wrote:
> > >(After my preamble, I am essentially asking .. how does a wrapper to 
> > >.Net/Mono work .....)
> > >
> > >There must not be to many people writting cross platform apps
> > >that need sound? Searching for sound (audio, mp3, sound) on 
> > >mono-project.com via mail list, etc
> > >returns almost nothing.
> > >
> > >Anyways I came across SDL on the Resources page!!!! wow!!! this will solve 
> > >my problems!
> > >
> > >I go to   cs-sdl.sourceforge.net
> > >and check it out, 
> > >It has SDL.NET for Win32 and Linux (mono is supported, it says)
> > >So i download the support libraries for SDL.NET which are the traditional 
> > >SDL libs .. put them on Win32 and updated
> > >my ones on my Suse box.
> > >I ran the Examples just fine on Win32
> > >
> > >Now on to Linux and Mono ...............
> > >
> > >First off the latest SDL.NET downloads on sourceforge seem to be for Win32 
> > >only (as an aside they have a nice installer that does everything for you 
> > >on the Win32 side of things)
> > >
> > >So i dig back a COUPLE years and get a gz file (of SDL.NET) that has linux 
> > >support
> > >	(incidently i see screen caps in SDL.NET project page of SDL apps 
> > >	running on linux so even thought
> > >		the linux support in the project seems old, it infact looks 
> > >		like it run and works)
> > >
> > >I build the SDL.NET on Linux (using latest stable release Mono), but there 
> > >is an error in the Makefile,
> > >the pathing slash is of the windows variety (hmmmmm...?), so i fix that 
> > >and Makefile the SDL.NET DLL's
> > >and the examples.
> > >
> > >The Examples compile/build fine but the give a Mono runtime error that 
> > >they can't
> > >find System DLL:SDL.dll
> > >
> > >
> > >>--An exception was thrown by the type initializer for SdlDotNet.Music 
> > >>---> System.DllNotFoundException: SDL.dll
> > >
> > >
> > >So this is were I hit a dead end because I don't know anything about 
> > >.Net/C# wrappers to traditional C based libraries on Linux.
> > >I looked at the gtk-sharp wrapper (cause i know it works), I see a mixer 
> > >of C and CS files and traditional
> > >gcc references in makefiles, but basically it looks like a big job to 
> > >figure out gtk-sharp's process of a wrapper.
> > >
> > >On that note, is there a doucmentation section somewhere on that - i.e. 
> > >building wrappers?
> > >
> > >To me, I am thinking in the end SDL.NET has to get hold of the routines in 
> > >the
> > >SDL ".so" file right? 
> > >how does that happen? I know how it happens in a traditional C/gcc 
> > >compile, link, create a .so file, and compile your apps with dynamic 
> > >support againt the ".so" ....  what bit of magic get Mono to see/do that 
> > >(with its wrapper)?
> > >
> > >I check around the SDL.NET code and see in the Natives.cs file this:
> > >
> > >                const string SDL_DLL = "SDL";
> > >                const string MIX_DLL = "SDL_mixer";
> > >                // General
> > >                [DllImport(SDL_DLL, 
> > >                CallingConvention=CallingConvention.Cdecl), 
> > >                SuppressUnmanagedCodeSecurity]
> > >                public static extern int SDL_Init(int flags);
> > >
> > >which I am thinking is pretty key to the process ...
> > >but why reference   SDL.DLL  ... I don't have that on Linux, thats on 
> > >Win32.
> > >
> > >Anyone shed light?
> > >
> > >Also, would it be a hard job making the same wrapper to the SDL lib on 
> > >MAC-OSX to complete a good cross-platfrom
> > >SDL.NET class for Mono ? 
> > >
> > >-tl
> > > 
> > >
> > >
> > >_______________________________________________
> > >Mono-devel-list mailing list
> > >Mono-devel-list at lists.ximian.com
> > >http://lists.ximian.com/mailman/listinfo/mono-devel-list
> > >
> > >
> > 
> > 
> > -- 
> > David Mitchell
> > Software Engineer
> > Telogis
> > 
> > 
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