Patent ID: 7239324

Claim:
An augmented primary surface system for displaying information on a display device, the system comprising: a presentation surface set associated with the display device, the presentation surface set comprising a presentation flipping chain and an overlay flipping chain, the presentation flipping chain comprising a primary presentation surface and a presentation back buffer, the overlay flipping chain comprising an overlay primary surface and an overlay back buffer; and a display interface driver for receiving display information from the primary presentation and overlay primary surfaces, merging the received display information, and transferring the merged information to the display device, wherein transferring the merged information comprises, sending to the display device a pixel in a set that corresponds to the primary overlay surface if the pixel in the set that corresponds to the primary overlay surface matches a color key, and sending to the display device a pixel in a set that corresponds to the primary presentation surface if the pixel in the set that corresponds to the primary overlay surface does not match the color key.