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Multiple buffering
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=== Page flipping === In the page-flip method, instead of copying the data, both buffers are capable of being displayed. At any one time, one buffer is actively being displayed by the monitor, while the other, background buffer is being drawn. When the background buffer is complete, the roles of the two are switched. The page-flip is typically accomplished by modifying a [[hardware register]] in the [[video display controller]]βthe value of a pointer to the beginning of the display data in the video memory. The page-flip is much faster than copying the data and can guarantee that tearing will not be seen as long as the pages are switched over during the monitor's [[vertical blanking interval]]βthe blank period when no video data is being drawn. The currently active and visible buffer is called the '''front buffer''', while the background page is called the '''back buffer'''.
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