System and method for performing blending using an over sampling buffer

A method for performing blending of a pixel represented by a plurality of sub-samples with a source color value, the method comprising the steps of:

• determining a number of sub-samples to be blended;
• retrieving a destination color value for each sub-sample;
• adding the retrieved destination color value for each sub-sample to produce a sum;
• generating a composite destination color value;
• retrieving a source color value;
• retrieving a blend value;
• and
• generating a blended result using the retrieved source color value, the blend value and the composite destination color value.

An apparatus for performing blending of a pixel represented by a plurality of sub-samples with a source color value, the apparatus comprising:

• means for determining a number of sub-samples to be blended;
• means for retrieving a destination color value for each sub-sample;
• means for adding the retrieved destination color value for each sub-sample to produce a sum;
• means for generating a composite destination color value;
• means for retrieving a source color value;
• means for retrieving a blend value;
• and
• means for generating a blended result using the retrieved source color value, the blend value and the composite destination color value.