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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-28 17:18:29 +00:00
trezor-firmware/gen/fonts/generate.py
2018-02-20 18:22:47 +01:00

41 lines
1.1 KiB
Python
Executable File

#!/usr/bin/env python
from __future__ import print_function
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):
x = (i % 16) * 10
y = (i // 16) * 10
cur = ''
while img.pixel(x, y) != 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
ch = chr(i) if i >= 32 and i <= 126 else '_'
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')