GDI函数硬件加速器设计与实现

Design and Implementation of GDI Accelerator

摘要: 设计实现了加速Microsoft GDI中AlphaBlend、BitBlt、MaskBlt、StretchBlt、TransparentBlt等函数的硬件结构；对函数实现中缩放算法的数据相关性进行研究，提出一种高效的缩放结构，与Marvell PXA300相比性能有明显提升.并且使用FPGA对本结构进行验证，结果与Microsoft GDI一致，在SMIC 0.13μm CMOS工艺标准单元库下使用Design Compiler进行综合，频率可达203MHz.

Abstract: This paper designs and implements the accelerator circuit for Microsoft GDI AlphaBlend、BitBlt、MaskBlt、StretchBlt、TransparentBlt functions;Put forward a kind of efficient scale structure,improve the handling capacity of the images,after consider Data Dependence of Scaling algorithm.The FPGA output is in accordance with Microsoft GDI.Compared with Marvell PXA300 has obvious improvement in performance.In addition,the operating frequency can reach 203MHz with SMIC 0.13μm standard CMOS cell library using Design Compiler.