Method and apparatus for pixel clipping source and destination w

Details Method and apparatus for pixel clipping source and destination w Method and apparatus for pixel clipping source and destination w

1991-12-04

1993-03-09

Harkcom, Gary V.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

395155, 340747, 340724, G06F 1566

Patent

active

051931486

ABSTRACT:
A method of moving blocks of pixel data, including window-identifying data, from a source area to a destination area within a frame buffer in a computer graphics system comprises the steps of: reading a block of pixel data from the source area into a pixel cache memory; combining source tiles with destination tiles in the cache; comparing pixel window identifiers read from the frame buffer with a pixel window identifier previously stored in the memory to determine whether the pixel window identifiers read from the frame buffer match the previously stored pixel window identifier; discarding each pixel whose corresponding window identifier does not match the previously stored window identifier; and updating the frame buffer with the pixel data not discarded.

REFERENCES:
patent: 4414628 (1983-11-01), Ahuja et al.
patent: 4642790 (1987-02-01), Minshull et al.
patent: 4769636 (1988-09-01), Iwami et al.
patent: 4941107 (1990-07-01), Hasebe
patent: 4958302 (1990-09-01), Fredrickson et al.
patent: 4961153 (1990-10-01), Fredrickson et al.
patent: 5001469 (1991-03-01), Pappas et al.

Affiliated with

Also associated with

Rating

Method and apparatus for pixel clipping source and destination w does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for pixel clipping source and destination w, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for pixel clipping source and destination w will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-215343