Re: [Pharo-users] SDL plugin ?

May 6, 2015

      Thanks for your answers, I understand now.
But even if the plugin is not needed it is handy to have because it allows
you to use "OSSDL2Driver current" without being returned an
OSNullWindowDriver because of the "hasPlugin" returning false.
Moreover the "eventLoopProcessWithPlugin" is actually much more efficient
than the "eventLoopWithoutPlugin" because of the semaphore.

So basically, even if it is not necessary, having the plugin just allows me
to code without hacking these methods :p

Thank you,

Matthieu

2015-05-06 22:32 GMT+02:00 Esteban Lorenzano <estebanlm@gmail.com>:
...
actually, the SDL plugin is not being included because until now it was
not necessary.
There is a difference between the SDL2 dependent functions and the plugin.
The plugin provides just two functions:
/**
 * Called by the VM heartbeat if installed, to check for the presence of
events.
 */
static void ioCheckForEvents() {
    if (inited) {
        SDL_PumpEvents();
    if (SDL_HasEvents(SDL_FIRSTEVENT, SDL_LASTEVENT)) {
    interpreterProxy->signalSemaphoreWithIndex(inputSemaphoreIndex);
    }
    }
}
void setSDL2InputSemaphoreIndex(int semaIndex) {
    inited = 1;
    inputSemaphoreIndex = semaIndex;
    setIoProcessEventsHandler(&ioCheckForEvents);
}
and they are used to replace the event handling the world usesâ¦ something
that you cannot do at this moment because I did not integrate that chunk
yet :)
So you should not need itâ¦ for now.
Esteban
ps: btwâ¦ this kind of questions are not for regular users but for pharo
developers (because you are playing with something that is or will be part
of pharo it self), so Iâm redirecting this question there.
On 06 May 2015, at 22:03, Merwan Ouddane <merwanouddane@gmail.com> wrote:
Hello Matthieu
The sdl plugin is just the SDL runtime binaries recompiled with the vm for
eaach plateform, you can find the sources here:
https://www.libsdl.org/release/SDL2-2.0.1.zip
The compiled plugin for windows can be found inside the last vm here:
http://files.pharo.org/get-files/40/pharo-win-latest.zip
Cheers,
Merwan
On 06/05/2015 21:48, Matthieu Lacaton wrote:
Hello, I am currently playing with OSWindow and I am wondering what the
"SDL plugin" is in the OSSDL2Driver ?
When I downloaded the latest linux VM + image I got a library called
libSDL2DisplayPlugin but how can I get this plugin for windows ? Is it
possible to get the source code too ?
Thanks,
Matthieu