convert.py

# encoding: utf-8
from bdflib import reader

import sys
reload(sys)
sys.setdefaultencoding('utf8')

with open('knxt.bdf','r') as f:
    font = reader.read_bdf(f)

ibm437_visible = lambda byt: byt.decode('ibm437').translate({
    0x01: u"\u263A", 0x02: u"\u263B", 0x03: u"\u2665", 0x04: u"\u2666",
    0x05: u"\u2663", 0x06: u"\u2660", 0x07: u"\u2022", 0x08: u"\u25D8",
    0x09: u"\u25CB", 0x0a: u"\u25D9", 0x0b: u"\u2642", 0x0c: u"\u2640",
    0x0d: u"\u266A", 0x0e: u"\u266B", 0x0f: u"\u263C", 0x10: u"\u25BA",
    0x11: u"\u25C4", 0x12: u"\u2195", 0x13: u"\u203C", 0x14: u"\u00B6",
    0x15: u"\u00A7", 0x16: u"\u25AC", 0x17: u"\u21A8", 0x18: u"\u2191", 
    0x19: u"\u2193", 0x1a: u"\u2192", 0x1b: u"\u2190", 0x1c: u"\u221F",
    0x1d: u"\u2194", 0x1e: u"\u25B2", 0x1f: u"\u25BC", 0x7f: u"\u2302",
})

def to_bit_string(j):
    out = [" "]*16
    x = int("0x" + j, 16)
    for i in range(16):
        if x & (1 << (15-i)):
            out[i] = "#"
    return ''.join(out)

print "uint16_t large_font[][20] = {"

for i in range(256):
    c = ibm437_visible(chr(i))
    print "\t/*", i, ord(c), c, "*/"
    print "\t{"
    if ord(c) in font:
        glyph = font[ord(c)]
        for j in glyph.get_data():
            print "\t\t0x{j}, /* {bits} */".format(j=j,bits=to_bit_string(j))
    else:
        for j in xrange(20):
            print "\t\t0xFFFF,"
    print "\t},"



print "};"