Dlopening SDL

SDL Development
1

hi`

not an important feature, but adding a header to SDL that makes
dlsym’ing of SDL easy might be a nice feature (I want to add a
precompiled version of SDL to UT but default to using the one
installed). I guess I could do it if it has a chance of getting
incorporated to the source ;)–
Daniel Vogel My opinions may have changed,
666 @ http://grafzahl.de but not the fact that I am right

2

hi`

from SDL.h:

/* As of version 0.5, SDL is loaded dynamically into the application */

how and where, or should it read linked instead of loaded???

/* This function loads the SDL dynamically linked library and
initializes

  • the subsystems specified by ‘flags’ (and those satisfying
    dependencies)
  • Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup
  • signal handlers for some commonly ignored fatal signals (like
    SIGSEGV)
    */
    extern DECLSPEC int SDL_Init(Uint32 flags);–
    Daniel Vogel My opinions may have changed,
    666 @ http://grafzahl.de but not the fact that I am right
3

hi`

not an important feature, but adding a header to SDL that makes
dlsym’ing of SDL easy might be a nice feature (I want to add a
precompiled version of SDL to UT but default to using the one
installed). I guess I could do it if it has a chance of getting
incorporated to the source :wink:

Look in src/main/win32/exports/ for an example of a perl script that
parses the headers to generate function export listings.

I’m inclined not to include such a header in the core of SDL, since it
would easily get out of date, but you could automate the generation of
one for yourself.

See ya!
-Sam Lantinga (slouken at devolution.com)

Lead Programmer, Loki Entertainment Software–
“Any sufficiently advanced bug is indistinguishable from a feature”
– Rich Kulawiec

4

hi`

from SDL.h:

/* As of version 0.5, SDL is loaded dynamically into the application */

how and where, or should it read linked instead of loaded???

This functionality was dropped in 0.8 because of build complications.

-Sam Lantinga				(slouken at devolution.com)

Lead Programmer, Loki Entertainment Software–
“Any sufficiently advanced bug is indistinguishable from a feature”
– Rich Kulawiec

5

Sam Lantinga wrote:

Look in src/main/win32/exports/ for an example of a perl script that
parses the headers to generate function export listings.

The first time that the fact that VC can’t automatically create an
’export’ file saves me some work :slight_smile:

I’m inclined not to include such a header in the core of SDL, since it
would easily get out of date, but you could automate the generation of
one for yourself.

I will have a look at the script tomorrow and try to create a version
that autocreates a ‘header’ file usefull for dlopening SDL.–
Daniel Vogel My opinions may have changed,
666 @ http://grafzahl.de but not the fact that I am right