Method and apparatus for multipass pixel processing
US6483505B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Mar 17, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for multipass pixel processing is presented. A command stream that includes a plurality of drawing commands is received where multipass drawing commands included in the stream include a number of sets of state information and one or more graphics primitives. For a multipass pixel processing operation, the graphics pipeline that performs the pixel processing is first configured using a first set of state information included in the sets of state information for the multipass operation. Once the graphics pipeline has been configured, at least a portion of the processing to be performed for the drawing command is performed using the graphics pipeline as configured by this first set of state information. The resultant data produced through this processing is stored as intermediate data. This may be referred to as the first pass in the multipass operation. The graphics pipeline is then reconfigured using a subsequent set of state information corresponding to the multipass drawing command. Once the graphics pipeline has been reconfigured, the second pass takes place. The second pass includes processing the portion of the graphics data processed during the first pas…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.