METHOD AND APPARATUS FOR LINE ANTI-ALIASING

摘要

A method and apparatus for processing line anti-aliasing begins by walking a mathematical line based on the Bresenham technique. While walking the mathematical line-at each pixel along the mathematical line-pixel coverage area is determined for each pixel of a set of pixels, where the set of pixels traverse a minor direction of the mathematical line. Note that for the mathematical line, the minor direction is the X direction when DELTAY is greater than DELTAX and is in the Y direction when DELTAX is greater than DELTAY. Once the coverage pixel coverage area of each pixel in the set of pixels has been determined, the intensity for each pixel in the set of pixels is determined. The intensity corresponds to the particular RGB value being generated for subsequent display.