Method and apparatus for graphics window clipping management in a data processing system
US6831660B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Jan 8, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/026
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus in a data processing system for processing graphics data. A set of clip areas defining a window for use in clipping graphics data is identified in which a portion of the graphics data is obscured. A clip area in a first hardware clipper is set, wherein the clip area encompasses the window to process the graphics data. The graphics data within the first clip area is graphics data to be displayed. A no clip area is set in a second hardware clipper, wherein the no clip area encompasses the portion and wherein which graphics data in the second clip area is to remain undisplayed. The graphics data is sent to the first hardware clipper and the second hardware clipper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.