| 摘要 |
<p>The present invention provides an alpha blending on sub-samples of a pixel in an efficient manner. The alpha blending unit (310) comprises a plurality of registers (404, 406) for storing a source color, a blending value (402), and a plurality of destination sub-sample values, multipliers, adders, an accumulator (424) and a divider (426). The alpha blending unit sums the destination sub-sample values and then divides them by the number of sub-samples to generate a combined destination color value.</p> |
