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trezor-firmware/legacy/gen/fonts/generate.py

42 lines
1.1 KiB
Python
Executable File

#!/usr/bin/env python3
from PIL import Image
class Img(object):
def __init__(self, fn):
im = Image.open(fn)
self.w, self.h = im.size
self.data = list(im.getdata())
def pixel(self, r, c):
p = self.data[r + c * self.w]
if p == (255, 255, 255):
return "0"
if p == (0, 0, 0):
return "1"
if p == (255, 0, 255):
return None
raise Exception("Unknown color", p)
def convert(imgfile, outfile):
img = Img(imgfile)
cur = ""
with open(outfile, "w") as f:
for i in range(128 - 32):
x = (i % 16) * 10
y = (i // 16) * 10
cur = ""
while img.pixel(x, y) is not None:
val = "".join(img.pixel(x, y + j) for j in range(8))
x += 1
cur += "\\x%02x" % int(val, 2)
cur = "\\x%02x" % (len(cur) // 4) + cur
i += 32
ch = "_" if (i == 127) else chr(i)
f.write('\t/* 0x%02x %c */ (uint8_t *)"%s",\n' % (i, ch, cur))
convert("fonts/fontfixed.png", "fontfixed.inc")
convert("fonts/font.png", "font.inc")