OpenWF


OpenWF is a royalty-free, cross-platform API that provides a low-level hardware abstraction interface for composited windowing systems to make use of composition and display hardware. OpenWF is targeted primarily at handheld devices that require portable acceleration of composition whilst minimizing memory bandwidth usage and power levels. OpenWF is managed by the non-profit technology consortium Khronos Group.
The OpenWF consists of two specifications.
had support for an OpenWF backend but this was later removed due to lack of maintenance.
DirectFB have plans to add support for OpenWF.
QNX Neutrino, widely deployed, such as in infotainment panels of Volkswagen vehicles, uses OpenWF.