Methods of and apparatus for processing graphics
US8681168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2010 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Sep 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/122
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a tile-based graphics processor, primitive lists (bins) are prepared for 2×2 blocks of tiles 40. The processor also determines and stores for each primitive in a bin, distribution information indicating the distribution of the primitive within the set of tiles that the bin corresponds to. Thus a primitive 42 that is found by its bounding box 43 to reside in two of the four tiles that make up the set of 2×2 tiles 40 is also associated with a tile coverage bitmap of the form “0101” to indicate that it lies in tiles “1” and “3” of the 2×2 group of tiles 40. The graphics processor uses the coverage bitmap (information) to determine whether a primitive should be processed for the tile currently being processed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.