Patent ID: 7466855

Claim:
A computer readable medium encoded with an image data structure for facilitating the rendering of an image by an image processing device, comprising: a first data field operable to store opaque data, the opaque data indicating whether image data is transparent or opaque; and a red pixel data field associated with the first data field, the red pixel data field operable to store first red pixel data when the opaque data indicates an image is opaque, and operable to store second red pixel data and first transparency data when the opaque data indicates that the image is transparent; a green pixel data field associated with the first data field, the green pixel data field operable to store first green pixel data when the opaque data indicates an image is opaque, and operable to store second green pixel data and second transparency data when the opaque data indicates that the image is transparent; and a blue pixel data field associated with the first data field, the blue pixel data field operable to store first blue pixel data when the opaque data indicates an image is opaque, and operable to store second blue pixel data and third transparency data when the opaque data indicates that the image is transparent, wherein the first, second and third transparency data specify a transparency level of a pixel defined by the second red, green and blue pixel data.