| 摘要 |
An apparatus and method for scaling graphics images using multiple graphics pages or surfaces. The method includes separating an input graphics page into one or more distortion-nonsensitive video page portions and one or more distortion-sensitive video page portions, scaling the distortion-nonsensitive pages using a first scaling algorithm, scaling the distortion-sensitive page portions using a second (distortion-free) scaling algorithm, and compositing the scaled page portions. The apparatus includes a plurality of scalers to scale the distortion-nonsensitive video page portions using the first scaling algorithm and the distortion-sensitive video page portions using the second, distortion-free scaling algorithm. The apparatus also includes a compositor to combine scaled distortion-nonsensitive and scaled distortion-sensitive video page portions. The method and apparatus allow distortion-sensitive and distortion-nonsensitive information to be scaled separately, allowing distortion-free scaling to be performed on the distortion-sensitive information and conventional scaling to be performed on the distortion-nonsensitive information.
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