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Method for reducing framebuffer memory accesses

  • US 8,358,314 B2
  • Filed: 02/08/2008
  • Issued: 01/22/2013
  • Est. Priority Date: 02/08/2008
  • Status: Active Grant
First Claim
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1. A method of reading a scanline of a framebuffer, comprising:

  • reading a series of bits from a framebuffer, each bit of the series of bits corresponding to a respective one of a plurality of regions of pixels in a scanline of the framebuffer;

    obtaining a stored pixel value for each pixel of a respective region of the scanline by accessing the respective region if a bit corresponding to the respective region is not set; and

    obtaining a predetermined pixel value for all pixels of the respective region without accessing the respective region if the bit corresponding to the respective region is set.

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