Re: [Openexr-devel] Idea for using OpenEXR in Windows

[Andreas Kahler]

Hi!

I've tried to do exactly what you have suggested, but it doesn't work.
The libs compiled with the Intel compiler have dependencies to some
Intel libs (which come with the compiler), but are not available to users
of MSVC++. Moreover, I got linker errors (about symbols defined
multiple times) when trying to use the Intel compiler generated libs with
VC++.

A similar approach worked for me: I created a DLL using the Intel
compiler, which exports all stuff declared in ImfCRgbaFile.h. That DLL
can be used with VC++ without any problems.

The code change I had to make were quite small:
In ImfCRgbaFile.h I added:

// define WIN32DLLEXPORT to create a Win32 dll
#ifdef WIN32DLLEXPORT
# define DLLEXPORT __declspec( dllexport )
#else
# define DLLEXPORT
#endif

and for each function and struct defined in the file I added the
DLLEXPORT macro, like:

ImfInputFile DLLEXPORT * ImfOpenInputFile (const char name[]);


I suggest to add a project file for such a DLL to the distribution.

Andreas
--
Andreas Kahler, Project Manager Applications
NXN Software AG, Sonnenstrasse 19, D-80331 Muenchen, Germany

> Yeah, Rodrigo came up with this idea and it's a good one.  It should allow
> people using Visual Studio 6 without the Intel compiler to use prebuilt
> libraries without much hassle.  I believe that the Half class will compile
> with Microsoft C++ 6.0, so you can still use Half as a datatype in your
> programs.
>
> See ImfCRgbaFile.h for the interface.
>
>
> -dwh-
>
>
>
>  On Mon, 10 Mar 2003, Rodrigo Damazio wrote:
>
> >     While talking to Drew(I met him by accident last week in a
> > conference), we came up with an idea for using OpenEXR in Windows
> > without using the Intel compiler - just use the C bindings...perhaps we
> > should create more C bindings for this purpose?? So far only ImRgba has
> > that...
> >
> > Rodrigo
> >
> >
> >
> >
> > _______________________________________________
> > Openexr-devel mailing list
> > address@hidden
> > http://mail.nongnu.org/mailman/listinfo/openexr-devel
> >