The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 10, 1999

Filed:

Jun. 28, 1996
Applicant:
Inventors:

Michael Kerry Larson, Austin, TX (US);

Daniel P Wilde, Cedar Park, TX (US);

Assignee:

Cirrus Logic, Inc., Fremont, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06T / ;
U.S. Cl.
CPC ...
345441 ;
Abstract

A graphics system includes a graphics controller for rendering polygons with a minimum number of steps and registers. The graphics controller includes a register file for receiving initial parameters for the polygon from a host. The graphics controller also includes a polygon engine for loading parameters from the register file and using these parameters to generate a starting X value for each scan line and a width value for each scan line to permit efficient rendering of the polygon without 'edge walking' the polygon. The polygon engine includes a counter and a pair of accumulators for defining the number of orthogonal scan lines, the X start value for each scan line, and the width of each scan.


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