[PATCH v3 2/7] winebus.sys: Support adding and removing SDL devices

[Aric Stewart]

v3: dynamic loading of the SDL library

Signed-off-by: Aric Stewart 
---
 dlls/winebus.sys/bus_sdl.c | 300 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 299 insertions(+), 1 deletion(-)

[Alexandre Julliard]

Aric Stewart  writes:
> +#ifdef SONAME_LIBSDL2
> +#define MAKE_FUNCPTR(f) static typeof(f) * p##f = NULL
> +MAKE_FUNCPTR(SDL_GetError);
> +MAKE_FUNCPTR(SDL_Init);
> +MAKE_FUNCPTR(SDL_JoystickEventState);
> +MAKE_FUNCPTR(SDL_JoystickGetGUID);
> +MAKE_FUNCPTR(SDL_JoystickGetGUIDString);
> +#ifdef HAVE_SDL_VIDPID
> +MAKE_FUNCPTR(SDL_JoystickGetProduct);
> +MAKE_FUNCPTR(SDL_JoystickGetProductVersion);
> +MAKE_FUNCPTR(SDL_JoystickGetVendor);
> +#endif

Now that you are loading the library dynamically, HAVE_SDL_VIDPID should
be replaced by a run-time check for the necessary functions (note that
you may need to declare the prototypes explicitly if they are missing
from the header).

[Aric Stewart]

Ok yes, they are missing from the header so I was unsure what the proper approach was for that.

Is there a good example of the explicit prototype I could follow?

thanks!
-aric

On 2/20/18 1:47 PM, Alexandre Julliard wrote:
> Aric Stewart  writes:
> > +#ifdef SONAME_LIBSDL2
> > +#define MAKE_FUNCPTR(f) static typeof(f) * p##f = NULL
> > +MAKE_FUNCPTR(SDL_GetError);
> > +MAKE_FUNCPTR(SDL_Init);
> > +MAKE_FUNCPTR(SDL_JoystickEventState);
> > +MAKE_FUNCPTR(SDL_JoystickGetGUID);
> > +MAKE_FUNCPTR(SDL_JoystickGetGUIDString);
> > +#ifdef HAVE_SDL_VIDPID
> > +MAKE_FUNCPTR(SDL_JoystickGetProduct);
> > +MAKE_FUNCPTR(SDL_JoystickGetProductVersion);
> > +MAKE_FUNCPTR(SDL_JoystickGetVendor);
> > +#endif
>
> Now that you are loading the library dynamically, HAVE_SDL_VIDPID should
> be replaced by a run-time check for the necessary functions (note that
> you may need to declare the prototypes explicitly if they are missing
> from the header).

[Alexandre Julliard]

Aric Stewart  writes:
> Ok yes, they are missing from the header so I was unsure what the proper approach was for that.
>
> Is there a good example of the explicit prototype I could follow?

For instance there's pFT_Outline_Embolden in dlls/gdi32/freetype.c.