Video display system including graphic layers with sizable, posi

Details Video display system including graphic layers with sizable, posi Video display system including graphic layers with sizable, posi

1996-12-11

1998-05-05

Mengistu, Amare

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345120, 395134, G09G 500

Patent

active

057481741

ABSTRACT:
A graphic video display system including at least one graphic layer having sizable, positionable windows and programmable priority values the sprites having fixed priority values. Portions of graphic layer windows and sprites which overlap with a current horizontal scan line of a video display are written to a line buffer. Overlapping objects are resolved by writing portions of objects overlapping the current horizontal scan line to the line buffer in order of the priority values of the objects.

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