exfont_generator.py

#!/usr/bin/env python

import sys
import zlib
import Image


print "// openning", sys.argv[1]

img = Image.open(sys.argv[1])
width, height = img.size

assert(width == 12*13)
assert(height == 12*4)

print "uint16_t const EXFONT[26*2][12][12] {"

for base_y in xrange(4):
    for base_x in xrange(13):
        print "{"
        for y in xrange(12):
            mask = 0;
            for x in xrange(12):
                if img.getpixel((12 * base_x + x, 12 * base_y + y)):
                    mask |= 0x01 << x
                print mask, ","
        print "},"

print "}; // EXFONT"