A method for selecting a pixel output format includes selecting a first
pixel to be output, and determining whether the first pixel to be output
overlaps with a second pixel. The second pixel is available in the first
format from a first source, and in a second format from a second source.
The method further includes converting the second pixel in the second
format to the first format to produce a converted second pixel. The
converted second pixel is compared to the second pixel having the first
format, and the second pixel having the first format or the second pixel
having the second format is selected for output based upon the
comparison.