{FreeType MF Module 2: Integration of \MF\ and \TeX-oriented bitmap fonts
 inside FreeType}
{Jaeyoung Choi, Saima Majeed, Ammar Ul\regularorprogramstring{~}{~}Hassan, Geunho Jeon}
{\MF\ is the structured font definition language that can generate
variants of different font styles by changing parameter values. It
doesn't require creating a new font file for every distinct font design.
It generates as output a Generic Font file (\acro{GF}) bitmap and (if
requested) its corresponding \TeX\ Font Metric file (\acro{TFM}). These
fonts can be utilized on devices of any resolution without creating new
font files, according to the preferred size. These benefits can also be
applied to complex characters such as \acro{CJK}
(Chinese-Japanese-Korean) glyphs rather than only applying to
alphanumeric characters. However, \MF, \acro{GF}, and Packed Fonts
(\acro{PK} compressed form of \acro{GF}) cannot be utilized beyond the
\TeX\ environment as they require additional conversion overhead.
Furthermore, existing font engines, notably FreeType, do not support
such~fonts.\looseness-1

In this paper, FreeTypeMFModule2 is proposed for the FreeType font
engine. The proposed module can directly support \MF, \acro{GF}, and
\acro{PK} fonts inside FreeType in a \GNU/Linux environment. To utilize
such fonts, users are not required to preconvert bitmaps into outlines:
the proposed module automatically performs such conversions without
relying on other libraries. By using the proposed module, users can
generate variants of font styles (via \MF) and use it on the desired
resolution devices (via \acro{GF}). The proposed font module reduces the
creation time and cost for creating the distinct fonts styles.
Furthermore, it reduces the conversion and configuration overhead for
\TeX-oriented~fonts.\looseness-1}