Re: [Mingw-cross-env-list] DirectShow Phonon Backend for Qt

[Mark Brand]

> As I already mentioned, it might be a good idea to:
>
>     * manually download and unpack the latest official Microsoft
>       DirectX stuff
>
>     * correct the headers, and convert the libraries using the
>       "reimp" tool  (see the mailing list entry mentioned above)
>
>     * repackage them, and ideally, include them directly into
>       MinGW's official w32api package
>
> Of course, please correct me if I'm missing some important
> point here.
>
>   
>> Would it be a good idea to put the "mingw-dshow" headers in a special
>> subdir of usr/i686-pc-mingw32/include so the names don't collide with
>> dx80_mgw headers? (Assuming the dx80_mgw headers stay where they are.)
>>     
> I don't think it is a good idea to separate these DirectX headers.
> No build script expects multiple DirectX versions in separate
> directories. And I also don't think this is really necessary.
>
> What we need is _one_ coherent piece of DirectX headers and
> interface libs - either as part of the w32api package, or as
> a separate "directx" package.
>   

This may be easier than we thought. The MinGW that comes with Nokia's Qt
SDK package already contains much more DirectX 9 support than the
"mingw-dshow" patch being considered by the MinGW project. Nokia's MinGW
is available as a separate file here:

ftp://ftp.qt.nokia.com/misc/MinGW-gcc440_1.zip

It would be easy to extract directx headers from this package. Does this
seem like a reasonable approach? I don't know yet if its possible to
completely replace dx80_mgw with this, but I have successfully built
mingw-cross-env after replacing just the headers needed to build the
Phonon backend.

-Mark