Patent ID: 6100899
Filing Date: 2000-08-08
Classification: G09G

Abstract:
A method for performing an N channel blending operation between a source image and a destination image using a frame buffer having at least one but less than N channels, the method comprising the steps of:(a) decomposing the N channel blending operation into a plurality k of blending operations, where k is less than or equal to N;(b) blending at least one channel of the source image with at least one corresponding channel of destination image to produce at least one blended channel in the frame buffer;(c) retrieving said at least one blended channel from said frame buffer and storing said at least one blended channel in a memory to permit at least one of the less than N channels of said frame buffer to be used for blending another channel of said source image in a subsequent blending step; and(d) repeating steps (b) and (c) for said plurality k of blending operations to produce a blended image.