| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system and method for efficiently performing automatic partial transfers of image data. <P>SOLUTION: The system and method for performing automatic partial transfers of image data includes a display controller with controller logic, a rectangle module, and an automatic transfer module. The rectangle module detects write operations to on-screen data in a video memory, and then updates a transfer rectangle to include written data from the foregoing write operations. The controller logic sets a transfer flag in response to a transfer trigger event in the display controller for initiating an automatic partial transfer operation from the video memory to a display device. The automatic transfer module performs automatic transfer configuration procedures to prepare the display device for the automatic partial transfer operation. The automatic transfer module then automatically transfers rectangle data of the transfer rectangle from the video memory to the display device to complete the automatic partial transfer operation. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
