Patent
1992-10-29
1995-07-04
Powell, Mark R.
395162, G06F 1200
Patent
active
054308410
ABSTRACT:
A method and apparatus for the management of the data associated with multiple graphics contexts in a computer graphics rendering system. Graphics contexts are built by graphics engines and selectively saved into a context save RAM. Context switches are managed either by modifying a context base pointer to address a new section of the context save RAM, or by writing out a portion of the context save RAM to external storage and reading in a replacement context from external storage. The writing and reading process are managed by a control processor allowing the graphics engines to switch context at the same time. New contexts read from external storage automatically cause regeneration of downstream rasterization parameters.
REFERENCES:
patent: 3575555 (1971-04-01), Schanne
patent: 3588353 (1971-06-01), Martin
patent: 4566117 (1986-01-01), Suckle
patent: 4658351 (1987-04-01), Teng
patent: 5097411 (1992-03-01), Doyle et al.
patent: 5155822 (1992-10-01), Doyle et al.
patent: 5224210 (1993-06-01), Pinedo et al.
patent: 5276798 (1994-01-01), Peaslee et al.
patent: 5291608 (1994-03-01), Flurry
patent: 5329615 (1994-07-01), Peaslee et al.
A New VLSI Graphics Coprocessor--The Intel 82786, 1986 IEEE Computer Graphics and Applications 6, Oct., No. 10, N.Y., USA.
A Uniform Approach to Represent Features in Different Application Contexts, Modeling in Computer Graphics, 8286 Computers in Industry, 19(1992) May, No. 2, Amsterdam, NE.
IBM Technical Disclosure Bulletin, vol. 34, No. 7B, Dec. 1991, pp. 29-30.
IBM Technical Disclosure Bulletin, vol. 34, No. 11, Apr. 1992, pp. 433-434.
IBM Technical Disclosure Bulletin, vol. 33, No. 7, Dec. 1990, "Improved Dispatching in a Rendering Context Manager", pp. 131-134.
Hempel Bruce C.
Richardson Leland D.
Schanely Paul M.
Tannenbaum David C.
Chauhan U.
International Business Machines - Corporation
Powell Mark R.
Walker Mark S.
LandOfFree
Context management in a graphics system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Context management in a graphics system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Context management in a graphics system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-767181