Method and apparatus for transferring a brush pattern of pixels stored in memory to a destination bitmap in memory. The method transfers an entire row of the brush pattern to the scan line of a destination bitmap without checking each byte for the end of the row. Data bytes are fetched from the pixel...http://www.google.ca/patents/US5717845?utm_source=gb-gplus-sharePatent US5717845 - Method and apparatus for transferring a brush pattern to a destination bitmap 
