Integrating SFML to Cocos2d-x?

[kehvatsu]

Hi,

Is it possible to integrate SFML Events to Cocos2d-x OpenGL window? I can't get it to work because I don't understand enough of OpenGL to initialize SFML. Can I somehow initialize SFML window with already created Cocos2d-x OpenGL window? I'm only interested in receiving Events from SFML to use as input in my game.

This is the main game loop in Cocos2d-x:

int Application::run()
{

    PVRFrameEnableControlWindow(false);

    // Main message loop:
    MSG msg;
    LARGE_INTEGER nFreq;
    LARGE_INTEGER nLast;
    LARGE_INTEGER nNow;


    QueryPerformanceFrequency(&nFreq);
    QueryPerformanceCounter(&nLast);

    // Initialize instance and cocos2d.

    if (!applicationDidFinishLaunching())
    {
        return 0;
    }

    EGLView* pMainWnd = EGLView::sharedOpenGLView();
    pMainWnd->centerWindow();
    ShowWindow(pMainWnd->getHWnd(), SW_SHOW);

    while (1)
    {
        if (! PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
        {
            // Get current time tick.
            QueryPerformanceCounter(&nNow);

                        //CCLog("MAIN LOOP: %lld",nNow.QuadPart);

            // If it's the time to draw next frame, draw it, else sleep a while.
            if (nNow.QuadPart - nLast.QuadPart > _animationInterval.QuadPart)
            {
                nLast.QuadPart = nNow.QuadPart;
                Director::sharedDirector()->mainLoop();
            }
            else
            {
                Sleep(0);
            }
            continue;
        }

        if (WM_QUIT == msg.message)
        {
            // Quit message loop.
            break;
        }

        // Deal with windows message.
        if (! _accelTable || ! TranslateAccelerator(msg.hwnd, _accelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }

    return (int) msg.wParam;
}

I tried to create the sf::RenderWindow like this:

sf::RenderWindow r_wnd;
r_wnd.create(pMainWnd->getHWnd());
 

But this only creates a black screen.

Any ideas?

Thanks.

[Hiura]

I've no idea. I never used this framework.

But it seems that you're trying to create an SFML view inside an OpenGL view.. SFML don't reuse any view, it creates its own. That might explain why it fails.

Do you get an error message on sf::err() output? (Check your console.)

[Laurent]

I'm only interested in receiving Events from SFML to use as input in my game.

Don't use SFML for that.

Doesn't Cocos2d-x provide events? You can also use Win32 events, since you're already writting Windows specific code.

[kehvatsu]

Thanks,

I decided to go with windows events. I just would have liked to make it cross-platform with SFML but that doesn't seem to be possible. Cocos2d-x is not designed for desktop use so it needs quite a bit of modifications. It has no support for right mouse button, mouse wheel, full screen, keyboard...

[Laurent]

I just would have liked to make it cross-platform

Hmm, then there's a lof of work because the small piece of code that you posted is already full of Windows specific code