Font format

Details Font format Font format

1997-05-05

1998-06-23

Wu, Xiao

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345192, G09G 522

Patent

active

057710341

ABSTRACT:
An improved font format for displaying text-based characters on pixel-oriented display devices. The improved font format includes a simplified header that includes font information and a plurality of flags indicating one of a plurality of predetermined formats for the plurality of glyph bitmaps. The header also includes a flag indicating whether the font was derived from a bitmapped font and a flag indicating whether the font is stored as a small format (i.e., less than 64k) or a large format (i.e., greater than 64k). A movable glyph offset table and a movable advance width table are also provided. To facilitate antialiased textout, additional background mode values are provided to allow for a blending of the glyphs into the background.

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