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#!/usr/bin/env python3
# this just turns the linxu console fonts which are C arrays into psf1 fonts
# that i can load on disk since half of my psf1 fonts are stolen from there.
#
# usage: genfonts.py <font_8x16.c> <out.psf> [height]
import re
import sys
def parse_c(path):
text = open(path).read()
cut = text.index("}, {")
body = text[cut + 4 :]
body = re.sub(r"/\*.*?\*/", "", body, flags=re.S)
bytes_ = [int(m, 16) for m in re.findall(r"0x([0-9a-fA-F]{2})", body)]
return bytes_
def write_psf1(rows, height, out):
count = len(rows) // height
if count < 256:
rows = rows + [0] * (height * (256 - count))
count = 256
if count not in (256, 512):
rows = rows[: height * 256]
count = 256
mode = 0x00 if count == 256 else 0x01 # bit0 set => 512 glyphs
header = bytes([0x36, 0x04, mode, height])
with open(out, "wb") as f:
f.write(header)
f.write(bytes(rows[: height * count]))
def main():
src, out = sys.argv[1], sys.argv[2]
height = int(sys.argv[3]) if len(sys.argv) > 3 else int(re.search(r"8x(\d+)", src).group(1))
rows = parse_c(src)
write_psf1(rows, height, out)
print(f"{out}: psf1 8x{height}, {len(rows) // height} glyphs in")
if __name__ == "__main__":
main()
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