| 摘要 |
A device and method for region-based bitblt with clipping-in or clipping-out. Data within a source bitblt region at a first source base address is selectively moved to a destination bitblt region at a first destination base address. One or more bitblt commands are produced if one or more regions within the source bitblt region are to be moved. The bitblt commands are temporarily stored in a plurality of buffer memories. Each of the bitblt commands are decoded into a second source base address, a second destination base address, a height parameter, and a width parameter. The regions to be moved are bitblted to the destination bitblt region based on the second source base address, the second destination base address, and the corresponding height and width parameters.
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