Method and system for displaying a composited image
US6734873B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2000 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An efficient method and system for displaying integrated transparent objects and animation with a window, such as an Internet Web page is described. The present invention implements a plugin-control, such as a Netscape plugin or ActiveX control, in the host program, such as a Web browser, wherein the plugin-control provides at least one graphics buffer in addition to the buffers used by the host program. The plugin-control can function according to the host program Application Programming Interface (API) for the plugin-control under which the at least one additional buffer is used to composite a “compositing plane” containing the transparent objects and animation with the host program window and where the resulting composited scene is returned to the host program buffers as part of the regular host program draw pipe. Additionally, the host program API may be circumvented and the resulting composited scene may be written directly to the front buffer for display on the display device. In particular, in one embodiment, the plugin-control implements the at least one additional buffer it provides in the system memory in order to improve the performance of compositing images …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.