Python script to convert the DCPU font from PNG to something directly useable.

dcpufont.py

"""
DCPU Font converter.
Written by Daniel Keep <[email protected]>.

Released under the MIT license.

"""

from PIL import Image

font_b = Image.open("font.png").convert("1")

glyphs = []

for i in range(128):
    x = i % 32
    y = i // 32

    cols = [0, 0, 0, 0]

    px = x * 4
    py = y * 8

    for col in range(4):
        colv = 0
        for row in range(8):
            pv = font_b.getpixel((px+col,py+row)) & 1
            colv = colv | (pv << row)

        cols[col] = colv

    print "%r:\t%r" % (chr(i),
                          ["%08s" % bin(w)[2:] for w in cols])

    glyph = (cols[1] | (cols[0] << 8), cols[3] | (cols[2] << 8))
    glyphs.append(glyph)

#
# Output
#

with open("font.dasm", "wt") as f:
    for line in __doc__.splitlines():
        f.write("; %s\n" % line)

    for i,glyph in enumerate(glyphs):
        f.write("dat 0x%04x, 0x%04x ; '%r'\n" % (glyph[0], glyph[1], chr(i)))

with open("font.bin", "wb") as f:
    for i,glyph in enumerate(glyphs):
        for word in glyph:
            f.write(chr(word & 0xFF))
            f.write(chr(word >> 8))

Thanks for posting this Daniel, it's really useful. In case anyone else runs into this: I needed to change line 10 to "import Image" (running Python 2.7 on Win7, with PIL 1.1.7).

Weirdly, import Image works for my in my Python 2.7 install, but doesn't work from within Visual Studio (which I was just using for autocomplete). Oh well. Glad you found it useful :)