Patent ID: 7414635
Filing Date: 2008-08-19
Classification: G06T

Abstract:
1. A graphic primitive clipping system that clips triangular primitives relative to a predetermined screen region, each primitive defined by location values XSTART, YSTART, XEND, and YEND; XSTART and XEND defining an X direction extent and location of the primitive in the coordinate system, and YTOP and YBOTTOM defining a Y direction extent and location of the primitive in the coordinate system, a screen region defined by limit values XLEFT, XRIGHT, YTOP, and YBOTTOM; XLEFT and XRIGHT defining an X direction extent and location of the screen region in the coordinate system, and YTOP and YBOTTOM defining a Y direction extent and location of the screen region in the coordinate system, the primitive further defined by first and second x direction values of 0 and 1, respectively, for an x direction XDIR in the coordinate system as, respectively, left to right and right to left relative to the screen region, and first and second y direction values as 0 and 1, respectively, for a y direction YDIR in the coordinate system as, respectively, top to bottom and bottom to top, comprising: