DirectFB全名是Direct Frame Buffer。DirectFB是德国Convergence公司推动的开放源代码计划，是GNU/Linux操作系统上的函数库，提供硬件图形加速（hardware graphics acceleration）与translucent windows等功能。许可方式为GNU宽通用公共许可证。
2006年版的DirectFB拥有CE Linux Forum的音效/影像图形规格V2（Audio/Video Graphics Specification V2）. [2]
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