RFC: OpenAL Winmm driver and OpenAL32.dll thunk was Re: OpenAL and DirectSound

[Nick Burns]

Attached is my diff/patch for both an openal winmm driver and an 
openal32.dll thunk
   I would like to get these into wine -- please comment and stuff...

----Rant follows----
I seem to be making a habit of responding to myself... (this antihistamine 
is kicking in)

Sometimes in life you feel retarded -- at least this time I have an excuse 
(I am sick)

Anyhow -- I took all sorts of care to make sure that my OpenAL thunk was 
CDECL -- I even made sure that my spec file was perfect...
But, I for some reason (unknown to even the person who wrote this code -- 
me) I used WINAPI (stdcall) in all the actual impl of the OpenAL thunk

This explains why 'WINEDEBUG=relay' worked just fine -- but it failed in odd 
ways without the relay.

I fixed that in my thunk -- and all seems well

Tested with
   UT2004Demo (uses openal)
   hello_world.exe (al example code)
   playfile.exe (al example code)
On
   Mac Book Pro running Mac OSX 10.4.8 and tot wine

ut2004 notes -- in System (this can be done in the gui -- uncheck (yes 
uncheck -- the gui seems backwards) 'use system driver' under audio)
   mv DefOpenAL32.dll DefOpenAL32.dll_
   UT2004.ini -- change
       [ALAudio.ALAudioSubsystem]
       UseDefaultDriver=False
   then run
       WINEDEBUG=trace+openal wine UT2004.exe

Also I did play ut2004 -- menus and 2 bot matches sounded fine (though the 
mouse seems sluggish...)

(not tested in linux)

- Nick
> From: "Nick Burns" 
> To: [e-mail]
> Subject: Re: OpenAL and DirectSound -- openal32.dll first pass
> Date: Mon, 20 Nov 2006 20:43:05 -0800
>
> Sorry for the double post -- was unaware that '[e-mail]' was the 
> same thing...
>
> I was sick last night and could not sleep .: I wrote up an openal32.dll 
> thunk.
>
> I will be testing with ut2004/and the demos (hello_world and playfile) very 
> soon...
>
> I get sound with tracing but not without -- when it works ill submit a 
> patch...
> - Nick
> > From: "Nick Burns" 
> > To: [e-mail], [e-mail]
> > CC: [e-mail]
> > Subject: Re: OpenAL and DirectSound
> > Date: Mon, 20 Nov 2006 00:29:42 -0800
> >
> > I would really like to get my openal driver into wine...
> > But we should also have an openal32.dll
> >
> > For example -- on my Mac Book Pro running Mac OSX 10.4.8 and tot wine
> > If a windows application uses openal it will go from openal(windows) -> 
> > dsound HEL(wine) -> openal(osx)
> > This means the audio data has soo much fun traveling from api to api -- 
> > kinda like a code rollercoaster...
> >
> > Anyhow -- I will resubmit my openal patch -- maybe if I get some time I 
> > will try to make a thunk (or I could help ... or work more)...
> >
> > Also I would like help with my openal patch (get hw accel working for 
> > dsound and dsound3d)
> > - Nick
> > > From: Detlef Riekenberg 
> > > To: Stefan Dösinger 
> > > CC: [e-mail]
> > > Subject: Re: OpenAL and DirectSound
> > > Date: Fri, 17 Nov 2006 20:06:01 +0100
> > >
> > > On Fr, 2006-11-17 at 17:31 +0100, Stefan Dösinger wrote:
> > > > Just stumbled uppon some interesting thing about openal and
> > >
> > > DirectSound 3D on
> > > > vista: http://www.openal.org/openal_vista.html
> > > >
> > > > It sounds like openal will be the old way to get hw accelerated 3d
> > >
> > > sound on
> > > > vista, and creative is writing a dsound -> openal wrapper. Maybe it
> > >
> > > gets a
> > > > proper license so we can include it in wine :-)
> > > >
> > > > Maybe we should write an openal thunk for wine? Many games use openal,
> > >
> > > and it
> > > > seems that on wine openal uses directsound. That might work more
> > >
> > > better and
> > > > faster if we had a openal.dll which directly called linux openal :-)
> > > >
> > > > Just dropping the suggestions :-)
> > >
> > > There was something a while ago...
> > >
> > > Google-Result for "wineopenal":
> > > http://www.winehq.com/pipermail/wine-devel/2006-June/048273.html
> > >
> > > --
> > >
> > > By by ... Detlef