Systems and methods for compositing a display image from display planes using enhanced bit-level block transfer hardware
US9142053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Apr 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for compositing an image from display planes are disclosed. An internal matrix having transparency data indicating transparency of a macro block of a digital representation of a display is accessed. An external matrix is accessed if the internal matrix indicates the macro block includes a transparent and opaque pixel, wherein the external matrix has transparency data indicating transparency of each pixel in the macro block. A first display plane is read based on the transparency data indicating opaque pixels and the first display plane data is sent to a first buffer. Second display plane data of a second display plane is read and sent to a second buffer if the transparency data indicates transparent pixels. Control data is inserted into the first buffer accordingly such that an image is generated based on at least one of the first and second display plane data and the control data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.