Dmusic interfaces

[Raphaël Junqueira]

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> Hi everyone. 

Hi rok

> Sorry for not contributing anything to dmusic in a while, 
> but I'm currently busy with final exams...
> As I can see, more work was done on it :)

don't worry, christian and me are trying to get some games running so dmusic 
should improve ;)
(good luck for you exams)

> > Is anyone of you working on Dmusic interfaces ?
> > Now doing test with Dxdiag doesnt work,
> > it says "No such interface" when trying to create a IDirectPerformance
> > object.
>
> This problem can be fixed with adding a
>
> if (IsEqualGUID(lpcGUID, &IID_IDirectMusicPerformance)
>     || IsEqualGUID(lpcGUID, &IID_IDirectMusicPerformance8))
>
> in DMUSIC_CreateDirectMusicPerformance8 (at the time being, there's
> check for IID_IDirectMusicPerformance8 only).

Oupps my forgot, 
i was trying to catch it ;)

> But even with this added, dxdiag creates interface, calls some functions
> and then crashes (though I have no idea why).

strange

> I was looking at code and i wonder if it's ok to allocate memory for
> interfaces like this:
> segment =
> (IDirectMusicSegmentImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IDirectMusicI
>mpl));
>
> I mean, it's IDirectMusicSegmentImpl, why using size of IDirectMusicImpl
> then? (or this doesn't matter?)

already fixed in my last sent patch (07)
was a Christian mismatch ;p

> Another thing... does anyone of you know how to write effective chunk
> loading function (it will be needed sooner or later since most dmusic
> objects are stored in files)?

Not me, maybe reading docs

Regards,
Raphael
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