专利内容由知识产权出版社提供
专利名称：Graphics processing apparatus and graphics
processing method
发明人：Takashi Nagao申请号：US09454861申请日：19991207公开号：US066229B1公开日：20021015
专利附图：
摘要：Disclosed is a graphics processing apparatus capable of drawing graphics athigh speed with a small memory capacity even in the case of drawing graphics in which adrawing element and a clip element exist mixedly or which has many overlaps. A drawing
command is interpreted by a command interpretation unit and data is converted to linearvectors by a vector data generation unit. A display list generation unit generates a displaylist. With respect to graphics in which a clip element and a drawing element exist mixedly,display lists of both elements are merged and a clipping process is performed at thelevel of the display lists while executing predetermined determination. In the case ofgraphics having many overlaps, the overlaps are similarly removed at the level of thedisplay lists. A display list drawing unit has a processing unit of 2N and performs drawingwhile executing a DDA operation in parallel. When the number of straight lines exceeds2N, the process is divided so that the number is equal to or smaller than 2N.
申请人：FUJI XEROX CO., LTD.
代理机构：Oliff & Berridge, PLC
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