• IGraphicsWindow interface

• GraphicsWindowWin32 implementation

• GraphicsWindowX11 implementation

• GraphicsWindowCarbon implementation (OSX)

• GraphicsWindowCocoa implementation (OSX, preferred)

1class IGraphicsWindow { 2public: 3// X11 only? 4 chooseVisual(); 5 6 createContext(); 7 setContext(); 8 getContext(); 910 createWindow(); 11 getWindow(); 12 setWindow(); 1314// convience methods15 std::string getWindowTitle(); 16void setWindowTitle(std::string); 1718// determine how we'll handle "icons." 19 Icon getWindowIcon(); 20void setWindowIcon(Icon ico); 21};

We could move almost all methods from driver_opengl_window.cpp in this class.

All stuff related to screens, windows, icons, cursors, etc... should be implemented there.

The problem is : where to put GL initialization functions ? such as GLX, WGL, etc... there are most depending on system but will certainly add a dependency on OpenGL.

This class could be non graphical too, ie provide a offscreen renderer and/or not providing a window.

I propose to use IDisplay as interface name, because a display could be a console (with a backbuffer), a window or a screen (if windows doesn't exist).

IDisplay :

• CWindowsDisplay

• CCocoaDisplay

• CCarbonDisplay

• CXDisplay

• CWaylandDisplay (the library which will replace X for future versions of Ubuntu)

• CDirectFBDisplay (for DirectFB)

And even perhaps :

• CQtDisplay

• CGtkDisplay

• etc...

All of them should be shared libs to be able to switch.