Computer graphics processing and selective visual display system – Computer graphics processing – Graphic manipulation
Reexamination Certificate
2005-06-28
2005-06-28
Bella, Matthew C. (Department: 2676)
Computer graphics processing and selective visual display system
Computer graphics processing
Graphic manipulation
C345S628000
Reexamination Certificate
active
06911991
ABSTRACT:
The present invention provides a mechanism by which the number of bits used to identify the WIDs for each of the color buffer and the overlay buffer may be programmed into the graphics adapter based on the currently active application environment. With the apparatus and method of the present invention, a programmable WAT color size selection device is provided in a RAMDAC of the graphics adapter. This programmable WAT color size selection device may be dynamically programmed to use varying bit splits of a WID from a WID buffer to obtain different indexes into a color WAT table and an overlay WAT table. In this way, different splits of, for example, an eight bit WID may be obtained based on the setting of the programmable WAT color size selection device such that varying color and overlay capabilities are obtainable dynamically.
REFERENCES:
patent: 5101365 (1992-03-01), Westberg et al.
patent: 5440680 (1995-08-01), Ichikawa et al.
patent: 5831638 (1998-11-01), West et al.
patent: 5838334 (1998-11-01), Dye
patent: 5874967 (1999-02-01), West et al.
patent: 5940089 (1999-08-01), Dilliplane et al.
patent: 6157374 (2000-12-01), West et al.
patent: 6529208 (2003-03-01), Chun et al.
patent: 6529908 (2003-03-01), Piett et al.
patent: 6573904 (2003-06-01), Chun et al.
patent: 6628291 (2003-09-01), Edrington et al.
patent: 6710777 (2004-03-01), Chun et al.
patent: 6822659 (2004-11-01), Marion et al.
patent: 6831660 (2004-12-01), Kipping et al.
patent: 0 587 342 (1993-08-01), None
Akeley, K., and T. Jermoluk, “High-Performance Polygon Rendering,” SIGGRAPH 88, pp 239-246.
Foley, J., A. van Dam, S. Feiner, J. Hughes, “Computer Graphics: Principles and Practice,” Addison-Wesley Publishing Company, 1996, pp 908.
Grupp et al., “Independent Pixel Interpretation for Windowed Overlays/Underlays”, IBM Technical Bulletin, vol. 38, No. 09, Sep. 1995, pp. 365-367.
U.S. Appl. No. 09/478,304, Method and Apparatus for Updating a Window Identification Buffer in a Data Processing System, filed Jan. 6, 2000, Chun et al.
Marion Neal Richard
Ramsay, III George F.
Tesauro James Stanley
Bella Matthew C.
Brautigam Alysa N
International Business Machines - Corporation
McBurney Mark E.
Yee Duke W.
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