DirectFB 1.5: API

= Extensions and API changes in DirectFB 1.5 =

IDirectFBGL2 and IDirectFBGL2Context
These two interfaces allow applications to create OpenGL rendering contexts and render to DirectFB surfaces or use them as textures.

IWater
This is a new rendering interface for advanced 2D bitmap and 2.5D vector graphics, so far.

Other changes
There will only be one window stack, instead of one per hardware layer. CreateWindow can be called from IDirectFB directly.