嵌入式系统图形处理平台设计与实现

Design and implementation of graphics processing platform on embedded systems

介绍了嵌入式系统图形处理平台的研制背景和目的,即是为了屏蔽各种嵌入式环境底层的不同,如操作系统和底层图形开发工具包以及硬件的差异,为上层图形应用程序开发提供统一的接口和图形服务,构建图形支撑环境。采用了以图形核心系统(graphical kernel system,GKS)为基础的方法进行设计,实现了应用程序开发的设备无关性。介绍了该嵌入式图形处理平台的层次结构,以及该平台在VxWorks操作系统Windml版本实现中所用的一些关键技术。

The objective of the development of graphics processing platform on embedded systems, which is to mask the differences among low-level circumstances of embedded systems, such as OS, low-level graphic development kits and hardware, thus to provide unified interfaces and graphic services for the high-level graphic applications, and construct graphics supporting environment, is introduced. The graphical kemel system is used as the framework of design to implement the device independence of the application programs. The hierarchy of the platform is introduced, as well as some of the key technologies when the platform is implemented with VxWorks and windml.