Patent ID: 8018472
Filing Date: 2011-09-13
Classification: G09G

Abstract:
1. A method comprising: combining, using a processor of a display processor system, two or more display layers to form an overlay layer; storing the overlay layer in a memory of the display processor system as a plurality of tiles including headers; recording processing information for each of the plurality of tiles in the headers of the respective tiles stored in the memory; selectively processing, using the processor of the display processor system, the overlay layer based on processing information for the overlay layer recorded in the memory wherein selectively processing the overlay layer comprises selectively processing the plurality of tiles in the overlay layer based on the processing information recorded in the headers of the plurality of tiles and wherein selectively processing the plurality of tiles comprises reading a burst length for a next tile in the overlay layer in a header of a current tile; reading the next tile from the memory according to the burst length for the next tile; combining, using the processor of the display processor system, the overlay layer with a video layer to form an image for presentation on a display device; updating, using the processor of the display processor system, the image at a first change rate corresponding to a change rate associated with the video layer; and updating, using the processor of the display processor system, the overlay layer at a second change rate lower than the first change rate.