Computer graphics processing and selective visual display system – Computer graphics processing – Graph generating
Patent
1996-07-01
1999-09-14
Jankus, Almis R.
Computer graphics processing and selective visual display system
Computer graphics processing
Graph generating
G06T 1100
Patent
active
059530162
ABSTRACT:
Mapping of pixels of a graphical object to a destination graphical image buffer is achieved by precalculating relative weights of object pixels near a subject pixel and storing the precalculated relative weights in a table and by determining weights of specific object pixels during processing by a table lookup of the predetermined weights according to a fractional portion of an object pixel address. A partitioned coefficient, which represents the relative weights of two or more object pixels, is retrieved from the weight table and used in a partitioned multiplication operation in a processor to weight each of the two or more object pixels substantially simultaneously. Weights associated with two or more object pixels are formed by partitioned multiplication of a partitioned horizontal weight word and a partitioned vertical weight word. The partitioned horizontal weight word is retrieved from a table of precalculated partitioned horizontal weight words according to fractional portion of a horizontal component of the object pixel address. Similarly, the partitioned vertical weight word is retrieved from a table of precalculated partitioned vertical weight words according to fractional portion of a vertical component of the object pixel address. In addition, partitioned processing operations are used to map multiple pixels of a graphical object to a destination graphical image buffer substantially simultaneously. Multiple partitioned data words, each of which represents multiple components of a respective mapped pixel, are transposed such that each partitioned data word includes a component of each of the mapped pixels and the transposed partitioned data words are summed in a partitioned addition operation. Accordingly, components of multiple mapped pixels are accumulated substantially simultaneously to form the multiple mapped pixels substantially simultaneously.
REFERENCES:
patent: 5228126 (1993-07-01), Marianetti, II
patent: 5384912 (1995-01-01), Ogrinc et al.
Ivey James D.
Jankus Almis R.
Sun Microsystems Inc.
LandOfFree
Graphical image mapping using partitioned operations does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Graphical image mapping using partitioned operations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graphical image mapping using partitioned operations will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1514562