Research Of Hardware Implementation For VRC Algorithms

In this paper, we mainly discuss some issues of the implementation of VRC(vector raster converter) in hardware, including the implementation of thick line, triangle and conic. First, the basic raster graphics algorithms for drawing 2D primitives are introduced, including edge coherence and the scan-line algorithm of triangle, brush algorithm of thick line (and its improved method) and midpoint circle and ellipse algorithm ; and the current situation of the advanced algorithms is also involved .second, the mapping of high level programming language to hardware description language is described, some principles of the conversion of algorithm to state machine are proposed also; then , the implementation of basic graphics in hardware is discussed in detail, the state machines are drawn in the paper, and the interfaces of hardware are defined, block diagrams too, and the advanced algorithm of conic is proved; Finally, some issues about test are described , the results of simulation and synthesis are given in the last, and some detailed data are displayed in the appendix.