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Computer system for processing images using a virtual frame buffer

  • US 6,269,190 B1
  • Filed: 09/24/1996
  • Issued: 07/31/2001
  • Est. Priority Date: 09/24/1996
  • Status: Expired due to Fees
First Claim
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1. A computer implemented process for creating a computer readable representation of an image comprising:

  • creating a data structure for storing an indication of forms and memory locations of image data associated with regions of the image, where the image is defined as a plurality of said regions defined by a first number, M, indicating the number of rows of regions in the image and a second number, N, indicating the number of regions in each row of the image, such that M and N are both greater than one and each region comprises a plurality of line segments from a plurality of lines;

    allocating memory to store image data associated with all of the regions; and

    rendering display lists including image operations by performing, for each image operation, steps of;

    identifying a region affected by the image operation;

    modifying image data associated with the identified region;

    storing image data associated with each region in a form and at memory locations located within the allocated memory according to an amount of memory required to store the image data associated with all of the regions and an amount of memory allocated to store the image data associated with all of the regions; and

    updating the data structure.

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