System und Verfahren zur Dreieck-Rasterung mit in zwei Dimensionen verschachtelten Rahmenpuffern

摘要

A method and apparatus is provided for interleaving frame buffer controllers in two dimensions. Each frame buffer controller includes an edge stepper 500, a subspan stepper 510 and a span stepper 520. The subspan stepper separates each span line into a plurality of parts. Each frame buffer controller provides pixel data for certain parts of the span line. The parts are defined by a start value, a stop value and a starting color value.