×

Graphics display system with window descriptors

  • US 6,731,295 B1
  • Filed: 11/09/1999
  • Issued: 05/04/2004
  • Est. Priority Date: 11/09/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A data structure for representing graphics images arranged in logical surfaces to be displayed, each data structure describing a corresponding logical surface, the data structure comprising:

  • a field indicating relative depth of the corresponding logical surface on a display;

    a field indicating an alpha value for the graphics image on the corresponding logical surface;

    a field indicating a location of the corresponding logical surface on the display;

    a field indicating a location in memory where graphics data for the corresponding logical surface is stored; and

    a field indicating a color of the corresponding logical surface, wherein the data structure is copied from a first memory to a second memory and sorted with other data structures in the second memory according to the relative depth of the corresponding logical surface on the display and based on which data structure in the second memory has been processed on a current display line, and wherein at least one of the graphics images includes pixels having a single color, and wherein the pixels having the single color are generated at a display time using content of the color indicating field rather than previously stored in a graphics memory.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×