BDFParser Cannot Read The Glyph Encodings Correctly in BDF

[diaowinner]

This font pack uses GB2312 encoding (which is different from ICU), and when I try to display text using them, the glyphs seems to be remapped to the Unicode codepoint. For example, 啊 (16-01) is remapped to 0x3121.

Encodings of these BDFs are here.