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Method & apparatus for displaying pixels from a multi-format frame buffer

  • US 5,559,954 A
  • Filed: 03/29/1995
  • Issued: 09/24/1996
  • Est. Priority Date: 02/24/1993
  • Status: Expired due to Term
First Claim
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1. An apparatus for displaying a plurality of pixels on a display monitor, said apparatus comprising:

  • multi-format pixel storage means for storing said plurality of pixels, each pixel comprising one of a plurality of pixel format types;

    first pixel map storage means for storing a format pixel map comprising a plurality of format identifiers, wherein said format identifiers specify a pixel format type for a corresponding pixel;

    conversion means coupled to said multi-format pixel storage means for converting a pixel to a display compatible pixel for each format type to generate a plurality of display compatible pixels;

    second pixel map storage means coupled to said first pixel map storage means for said format pixel map for rendering pixels for display on said display monitor; and

    transferring means coupled to said first pixel map storage means and second pixel map storage means for transferring said format pixel map from said first pixel map storage means to said second pixel map storage means during a pre-determined interval, and for transferring a format identifier from said format pixel map to said second pixel map storage means for selection of said display compatible pixel; and

    selection means coupled to said conversion means and said second pixel map storage means for selecting a display compatible pixel from said plurality of display compatible pixels based on a corresponding format identifier from said format pixel map such that said display compatible pixel selected is compatible for display on said display monitor.

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