Computer graphics processing and selective visual display system – Computer graphic processing system – Plural graphics processors
Patent
1996-06-20
1999-09-28
Chauhan, U.
Computer graphics processing and selective visual display system
Computer graphic processing system
Plural graphics processors
345520, 345191, G06T09120, G06F 1500
Patent
active
059596376
ABSTRACT:
A graphics controller circuit comprising a plurality of pipelines for performing a set of operations on a stream of input pixel data to generate at least a first operand and a second operand. A rasterop unit in the graphics controller circuit may receive the first operand and the second operand, and execute a raster operation using the first operand and the second operand to generate a set of display pixel data. The graphics controller circuit may further comprise a transparency unit for generating a write enable mask corresponding to the set of display pixel data. A display memory may selectively store or block the set of display pixel data according to the write enable mask. As the graphics controller generates display signals from the display data stored in display memory, a transparency operation may be performed.
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Bonnelycke Mark Emil
Holmes Jeffrey Michael
Mills Karl Scott
Owen Richard Charles Andrew
Bell Robert P.
Chauhan U.
Cirrus Logic Inc.
Shaw Steven A.
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