公开(公告)号：US5444839A

公开(公告)日：1995-08-22

申请号：US53373

申请日：1993-04-28

申请人： Kia Silverbrook ,  Michael J. Webb ,  David W. Funk ,  Simon R. Walmsley

发明人： Kia Silverbrook ,  Michael J. Webb ,  David W. Funk ,  Simon R. Walmsley

IPC分类号： G06T1/20 ,  G06T11/40 ,  G06T15/40 ,  G09G5/42 ,  G06T11/00

CPC分类号： G06T15/40 ,  G06T1/20 ,  G06T11/40 ,  G09G5/42

摘要： An object based graphics processor includes an input device for receiving object outlines of an image intended for rasterized display, each of the outline comprising at least one object fragment, a sorter for sorting the object fragments into a rasterization sequence corresponding to a scan line in a raster format for rasterized display, and a storage having a first storage area and a second storage area connected to the sorter for storing the rasterization sequence in one of the storage areas. A reading device connected to the storage reads a previously stored rasterization sequence in real-time and calculates object edges in a respective scan line, and prioritizing device assigns pixel data values within each of the scan lines based upon priority levels assigned to the object edges. The pixel data values are output from the processor for rasterized display.

摘要翻译： 基于对象的图形处理器包括用于接收用于光栅化显示的图像的对象轮廓的输入装置，每个轮廓包括至少一个对象片段，用于将对象片段分类成对应于扫描线的光栅化序列的分类器 用于光栅化显示的光栅格式，以及具有连接到分类器的第一存储区域和第二存储区域的存储器，用于将光栅化序列存储在存储区域之一中。 连接到存储器的读取装置实时读取先前存储的光栅化序列并计算相应扫描线中的对象边缘，并且优先级设备基于分配给对象边缘的优先级分配每个扫描线内的像素数据值。 从处理器输出像素数据值进行光栅化显示。