SFML with no window

[Acrobat]

I wonder, is it possible to initialize ogl with sdl or else (without sf::Context), and use drawing with sfml ?
I need it to finish the screensaver for OSX (problems with Garbage Collection and window package)

[Laurent]

Nope, you can only draw SFML entities on a sf::RenderTarget.

Wouldn't it be simpler for you to modify SFML so that it is compatible with your requirements?

[Acrobat]

This is not the easiest way

[Laurent]

May I ask why?

[Acrobat]

i don't know anything about this mac windowing api/GC

[Laurent]

But what is the problem?

[Acrobat]

Ok, i will try.
I launched the minimum sfml program under profiller (GC logging), successfully crashed in 10 sec.

    sf::RenderWindow window(sf::VideoMode(1024, 768), "");
    while (window.isOpen()) {
        sf::Event event;
        while (window.pollEvent(event)) {
            if (event.type == sf::Event::KeyPressed && event.key.code == sf::Keyboard::Escape)
                window.close();
        }
        window.clear();
        window.display();
    }

I'm thinking about deleting inner autorelease pool, what do you think about it ?

[Laurent]

I have no idea about how the OS X part of SFML works, sorry.

[Acrobat]

Removing inner pool did not helped.

I have no idea about how the OS X part of SFML works, sorry.

same as me

[Acrobat]

now the problem is clear - GC destroys NSOpenGLContext
is there a way to force GC not to collect garbage ?

[Acrobat]

changing

m_context = [[NSOpenGLContext alloc] initWithFormat:pixFmt shareContext:sharedContext];
 

to

m_context = [[[NSOpenGLContext alloc] initWithFormat:pixFmt shareContext:sharedContext] retain];
 

does not helped