Method and mechanism of automatic video buffer flipping and display sequence management

摘要

A hardware-based graphics controller for processing video data in a computer system. Such graphics controller may include a video capture engine which captures fields of video data from a video source for storage in video buffers in sequential order, and generates video capture parameters from the video data for determining proper flipping operations of display contents of one image to another on a display monitor; and a video overlay engine coupled to the video capture engine, which determines proper flipping operations of display contents of one image to another from the video buffers and adjusts display settings of the display contents for a visual display on the display monitor based on the video capture parameters from the video capture engine.