Standardization of graphics system logical frame buffer
US6504547B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1999 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Aug 13, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T1/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for implementing a bitmapped graphics system involves creating a logical frame buffer for a program. The method attaches a standardization operation to the logical frame buffer, so that the standardization operation is automatically executed upon the invocation of draw function by an application. The standardization operation serves to perform all of the functions required to properly transmit the contents of the logical frame buffer into the hardware frame buffer, arbitrates access to the logical frame buffer, if necessary, and performs other useful logical operations. In the preferred embodiment, the standardization operation comprises a complementary pre-process and a post-process. The pre-process is invoked prior to the execution of a graphics system draw operation, while the post-process is invoked thereafter. The pre-process and post-process may include more than one distinct pre-function and post-function. The post-functions are executed in last-in-first-out order relative to their order of operations, while the pre-functions are executed in first-in-first-out order relative to their order of operations. According to another aspect, a device executes an application …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.