Displaylink (uk) Limited

Paul James

Jonathan Alexander Jeacocke

A computer system is disclosed comprising an operating system having a display subsystem. The display subsystem includes a display interface for receiving display information from applications, and is adapted to generate display output based on the display information. A redirection module is configured to intercept calls from an application to the display interface. Responsive to the intercepted calls, the redirection module transmits display output generated by the application to a connected display device, bypassing at least part of the display subsystem, including for example a desktop compositor or window manager.

Bypassing desktop composition

A display control device for outputting display data to frame buffers includes an input for receiving portions of the display data, different portions being in raw form and in compressed form. A data controller determines, for each received portion, whether it is in compressed form or raw form and controls the received portion to move along a first, bypass, path if it is determined that the received portion of display data is in raw form and to control the received portion of display data to move along a second path to a decompression engine if it is determined that the received portion of display data is in compressed form. The decompression engine decompresses the particular portion of compressed display data and forwards a corresponding portion of decompressed display data along a third path, the portions of data from the first and third paths then being output to the frame buffers.

Growing community of inventors

Thurlby, United Kingdom

Paul James