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Method and system for a programmable image transformation

  • US 7,120,317 B1
  • Filed: 03/01/2001
  • Issued: 10/10/2006
  • Est. Priority Date: 03/01/2001
  • Status: Expired due to Term
First Claim
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1. A method for transforming an image directly from a source image memory, comprising:

  • rotating an image by a predetermined angle, which includescopying a plurality of pixels of image data of the image from a first memory location of the source image memory associated with a first location on a display device to a second memory location of the source image memory associated with a second location on the display device, wherein the plurality of pixels include a block of bits, so that the copying includes reading all bits of the block of bits from the first memory location into a graphics engine in one read cycle, andwherein the first memory location and the second memory location are included in a single source image memory devicewherein the copying includes writing one pixel of the plurality of pixels into the second memory location and masking out remaining pixels of the plurality of pixels within a display.

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