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Method and apparatus for rendering an image in a video graphics adapter

  • US 7,158,140 B1
  • Filed: 03/15/1999
  • Issued: 01/02/2007
  • Est. Priority Date: 03/15/1999
  • Status: Expired due to Fees
First Claim
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1. A method of displaying active video on a computer system, the method comprising the steps of:

  • receiving at a first video graphics adapter (VGA) a first frame of active video from a video source;

    rendering at least a first portion of the first frame of active video at the first VGA in response to a first control signal, wherein the first control signal is a signal specifying a window location for displaying the active video;

    storing at least a first portion of the active video in a video memory in a memory location mapped to the first VGA;

    rendering at least a second portion of the first frame of video at a second VGA in response to a second control signal and storing at least the second portion of the active video in a video memory in a memory location mapped to the first VGA; and

    sending the first frame of data over a local bus of the first VGA and the first video graphics adapter sending a portion of the first frame for the second video graphics adapter via a non-local bus.

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