DirectFB is a thin library that provides developers with hardware graphics acceleration, input device handling and abstraction, integrated windowing system with support for translucent windows and multiple display layers on top of the Linux Framebuffer Device.

DirectFB project is a complete hardware abstraction layer with software fallbacks for every graphics operation that is not supported by the underlying hardware. DirectFB adds graphical power to embedded systems and sets a new standard for graphics under Linux.

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Here are some key features of "DirectFB":

· Rectangle filling/drawing
· Triangle filling/drawing
· Line drawing
· Flat shaded triangles
· Simple blitting
· Stretched blitting
· Textured triangles (perspective correct)
· Blending with an alphachannel (per pixel alpha)
· Blending with an alpha factor (alpha modulation)
· Nine source and destination blend functions
· Porter/Duff rules are supported
· Premultiplied alpha supported
· Colorized blitting (color modulation)
· Source color keying
· Destination color keying