移动GPU中通用图形应用编程接口库的设计

Design of Application Programming Interface Library for General Graphics in Mobile GPU

随着移动设备的快速发展和图形硬件加速器种类的与日俱增,图形API库的灵活性和高效性显得尤为重要。传统图形应用程序开发是基于特定的图形API标准在其专用图形处理器上实现加速渲染,但这会对图像的复杂度和高清化造成一定的局限性。因此,基于自主设计的移动GPU硬件架构,通过分析OpenGL ES 2.0和OpenVG 1.1两种图形库标准,设计了一种包含通用管理层、函数容错预处理层和命令解析层的3层抽象结构的通用图形应用编程接口库。在Linaro操作系统和ZC706 FPGA搭建的软件平台上完成对所设计通用图形API库的验证。结果表明,所设计的通用图形API库符合以上两种图形库标准,可以完成基本图形的渲染操作。

With the rapid development of mobile devices and the increasing variety of graphics hardware accelerators,the flexibility and efficiency of the graphics API library are important.Traditional graphics application development is based on specific graphics API standards to achieve accelerated rendering on its dedicated graphics processor,but this will impose limitations on the complexity and high-definition of the image.Therefore,this paper designs an API library based on the independently designed mobile GPU hardware architecture for general graphics.By analyzing the two library standards of OpenGL ES 2.0 and OpenVG 1.1,an API library for general graphics is designed by using a three-layer abstract structure including general management layer,function preprocessing layer and function fault pre-parsing layer.The API library for general graphics is validated based on the Linaro OS and ZC706 FPGA.The experimental results show that the designed API library for general graphics conforms to the API library,and completes the basic graphics rendering operation.