| 摘要 |
A method for implementing a bitmapped graphics system involves creating a logical frame buffer for a program (209, 212). The method attaches a standardization operation (210, 211, 213, 214) to the logical frame buffer (209, 212), so that the standardization operation is automatically executed upon the invocation the of draw function by an application (201, 203, 204). The standardization operation serves to perform all of the functions required to properly transmit the contents of the logical frame buffer into the hardware frame buffer (206), arbitrates access to the logical frame buffer, if necessary, and performs other useful logical operations such as hiding the cursor prior to drawing into the frame buffer and showing the cursor after drawing into the frame buffer and logically rotating the frame buffer to counteract the peculiar rotation states wired into the hardware frame buffer.
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