Arm Limited

Damian Modrzyk

Piotr Chrobak

Daren Croxford

Michal Bogusz

Pawel Duc

An apparatus for providing a foreground frame to be composited with a background frame in a chroma-keying arrangement, each of the foreground frame and the background frame comprising one or more regions that together form the respective frame. A detection module determines whether each frame region has a predetermined colour value and generates and stores chroma keying information based on the determination. Control circuitry then controls image processing to be performed on the region according to the stored chroma keying information.

Method of and apparatus for processing frames in a data processing system

An apparatus for compositing an output surface () from a plurality of input surfaces () includes processing circuitry and a composition processor. The processing circuitry is configured to determine whether two or more input surfaces of the plurality of input surfaces () can be combined into a single secondary surface for provision to the composition processor. When it is determined that two or more input surfaces of the plurality of input surfaces () can be combined into a single secondary surface for provision to the composition processor, the processing circuitry is configured to provide data representing the secondary surface to the composition processor, the data indicating the input surfaces that contribute to the secondary surface.

Method of and apparatus for providing an output surface in a data processing system

A display controllercomprises a first display processing corecomprising a first input stage operable to read at least one input surface, a first processing stage operable to generate an output surface, a first output stage operable to provide an output surface for display to a first display, and a first write-out stageoperable to write data of an output surface to external memory, and a second display processing corecomprising a second input stage operable to read at least one input surface, a second processing stage operable to generate an output surface, and a second output stage operable to provide an output surface for display to a second display. The display controlleralso comprises an internal data pathfor passing data of an output surface from the first display coreto the second display core

Display controller

A display controller comprises an input stageoperable to read at least one input surface, a composition stageoperable to compose plural input surfaces to generate a composited output surface, an output stageoperable to provide the composited output surface to a display for display, a scaling engineoperable to scale a composited output surface generated by the composition stageand a write-out stageoperable to write a composited and/or scaled output surface to external memory.

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Cambridge, United Kingdom

Damian Modrzyk