4.1 Definition of Physical Font File Format
The physical font file contains the following types of data:
- General header
The general header consists of an identification ID, a parameter structure, and segment tables.
- Code area table
This is a segment containing a list of areas of character codes.
- Patch tables
These are segments containing patch information for virtual bitmap index tables. In general, a patch table is used for vertical-writing characters.
- Bitmaps
These are segments that store bitmaps. For horizontal-writing character bitmaps, patch bitmaps for horizontal-writing characters and patch bitmaps for vertical-writing characters