Thanks for the detective work. Since I build fluidsynth from sources for the 
Windows installers, I can probably just omit the drivers. Anyway, I'll look 
into it.

Regards,
Mike
----- Original Message ----- 
From: "Davis Pyon" 
To: 
Sent: Tuesday, January 08, 2008 9:12 PM
Subject: [Cs-dev] fluidOpcodes.dll crashes Csound5.07.2f + [csound~] + 
WinXPsp2


>
> Hi,
>
> Sorry for replying so late after 5.07.2 was released.
>
> fluidOpcodes.dll is still causing "Access Violation" crashes for me.
>  I'm using WinXP
> SP2.  [csound~] still crashes after csoundReset() or csoundDestroy() is 
> called and I
> click on a non-MaxMSP window.
>  Lettuce also pops up "Access Violation" messages under
> similar circumstances.  blue,
> csoundapi~, and command line Csound work just fine.
>
> I downloaded the source code for fluidsynth 1.0.8 and compiled 
> fluidsynth.dll with
> MSVC 8.  Commenting out the CreateWindow() related stuff in
> fluid_win32_create_window() in fluid_dll.c prevents the crashes.
>
> Supposedly, the window is needed in order for DirectSound to work.  But 
> the
>
> problem is that the thread that called CreateWindow() must also call 
> DestroyWindow().
>
> If a different thread calls DestroyWindow(), then we get a crash.  The 
> fluidsynth devs
>
> decided to never call DestroyWindow(), but that's a crappy solution IMO.
>
> I successfully tested the fluid opcodes (using bolivianflute.SF2) after 
> removing
> the CreateWindow() related code.  No crashes.
>
> So I guess we could:
>
> 1) Remove the CreateWindow() code ourselves.
>
> 2) Ask the fluidsynth devs to do it for us.
>
> 3) Ask the fluidsynth devs to provide some way to bypass the 
> CreateWindow()
>   stuff.  Or better yet, just allow us to bypass the audio driver stuff 
> since
>   (if my understanding of fluidsynth is correct) it's not needed when used
>   in Csound.
>
> Any comments, suggestions, corrections are appreciated.  Thanks.
>
>
> Davis
>
>
>
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