DirectDraw技术在快视显示系统中的应用  

Application of DirectDraw Technology in Quick-look Display System

作　　者：张华琳 高升[2] 马茜[2] 王士成[2] 

机构地区：[1]河北远东哈里斯通信有限公司,河北石家庄050081 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2010年第8期56-58,64,共4页Radio Engineering

摘　　要：针对卫星宽幅图像实时快速显示的需求,分析了(DirectDraw)技术在快视图像数据显示方面的优势,充分利用硬件加速特性,采用条带显示方式、双缓冲技术和离屏图面换页技术,实现了快视图像数据的平滑显示,对DirectDraw对象的创建、协作级别的设置、显示模式的设置、主图面和离屏图面的创建以及图像条带显示的方法和过程进行了阐述。同时在仿真环境下对快视显示系统性能进行了测试,并明确了系统对运行环境的要求。To meet the requirement of displaying high resolution satellite images in real-time,the technical advantage of DirectDraw in terms of image displaying is discussed.Using image striation display technology,double-buffer technology and off-screen surface technology for page flipping,this method takes full advantage of hardware acceleration technology to achieve quickly and smoothly displaying of images.The methods and process of creating DirectDraw object,setting cooperative-level,setting display mode,creating main surface and off-screen surface and displaying image striation are described.The performance test for the quick-look display system is done in simulation environment,and the demand of the system on running environment is given.

关 键 词：快视显示系统 DIRECTDRAW 条带显示 双缓冲 离屏图面 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]