Tiling for bit map image
AssigneeLexmark International, Inc.
InventorBruce Alan Peltzer
Life of this patent
Estimating the term…
Abstract
A rasterizer described in relation to a printer apparatus for defining a page bit map, for a page to be printed, in blocks wherein there are multiple blocks across the width of the page and multiple blocks down the length of the page. A programmed microprocessor executes routines to render objects defined by received or processed drawing orders into blocks of the bit map and also to store drawing orders in display lists, each being associated with a block of the bit map. The blocks are rasterized, including rendering the display lists, on a row by row basis for serialization of the rows of blocks of the bit map to a print engine for printing.
Claims11
A printer including a print engine for printing pages which have a width and a length, comprising:
- means for defining, for a page to be printed, a page bit map in sections with multiple sections across the width of the page and multiple sections down the length of the page;
- means for receiving drawing orders defining objects for the page to be printed;
- means for rendering some of the objects defined by the drawing orders into the sections of the bit map;
- means for storing some of the drawing orders in display lists, each display list having an associated section of the bit map;
- and
- means for rasterizing groups of sections of the bit map, including rendering the display lists, for serialization of the groups of sections of the bit map to the print engine.
Dependencies are inferred from the claim text.