Method and apparatus for line anti-aliasing

Abstract

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 ΔY is greater than ΔX and is in the Y direction when ΔX is greater than ΔY. 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.

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