Patent ID: 7567259

Claim:
A method for display compositing, comprising the steps of: (A) generating sequentially in a lookup table circuit a plurality of respective color values and a plurality of respective blending values corresponding to a plurality of graphics pixels in a graphics plane to be blended with a display picture, said graphics plane comprising (i) a blending plane having said respective blending values and (ii) a plurality of color planes having said respective color values; (B) examining in a sequence a plurality of neighboring pixels of said graphics pixels spatially adjoining a current pixel of said graphics pixels using a modify circuit, said current pixel having a current color value of said respective color values and a current blending value of said respective blending values; (C) replacing said current color value with said respective color value of a particular pixel of said neighboring pixels where (i) said respective blending value of said particular pixel comprises one of a plurality of non-transparent values and (ii) said current blending value comprises one of at least one transparent value; and (D) maintaining said current color value where at least one of (i) all of said neighboring pixels comprise a respective one of said transparent values and (ii) said current blending value comprises one of said non-transparent values.