Real-Time Digital Compositing in Anti-Aliased Text and Graphics Generation

Character generation has reached the level where full-color images have become necessary to compete in the market. The advantages of full-color, frame-buffer architecture for character generation over traditional stroke-maker architecture are numerous, but the disadvantages of slower screen rewrites and slow, new-character compositing have discouraged most manufacturers. Utilizing a digital-compositing arithmetic and logic unit (ALU) of its own design, Quanta has overcome these two performance problems of full-color, frame-buffer architecture and implemented the compositing circuit into an application-specific integrated circuit (ASIC) chip set that enabled the integration of a compositor into two new anti-aliased, text generators.

Print ISSN

0036-1682

Published

1989-07

Content type

Original Research

DOI

10.5594/J02716