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trezor-firmware/gen/bitmaps/generate.py
2017-02-01 18:07:47 +01:00

60 lines
1.3 KiB
Python
Executable File

#!/usr/bin/env python
from __future__ import print_function
import glob
import os
from PIL import Image
hdrs = []
data = []
imgs = []
def encode_pixels(img):
r = ''
img = [ (x[0] + x[1] + x[2] > 384 and '1' or '0') for x in img]
for i in range(len(img) // 8):
c = ''.join(img[i * 8 : i * 8 + 8])
r += '0x%02x, ' % int(c, 2)
return r
cnt = 0
for fn in sorted(glob.glob('*.png')):
print('Processing:', fn)
im = Image.open(fn)
name = os.path.splitext(fn)[0]
w, h = im.size
if w % 8 != 0:
raise Exception('Width must be divisable by 8! (%s is %dx%d)' % (fn, w, h))
img = list(im.getdata())
hdrs.append('extern const BITMAP bmp_%s;\n' % name)
imgs.append('const BITMAP bmp_%s = {%d, %d, bmp_%s_data};\n' % (name, w, h, name))
data.append('const uint8_t bmp_%s_data[] = { %s};\n' % (name, encode_pixels(img)))
cnt += 1
with open('../bitmaps.c', 'wt') as f:
f.write('#include "bitmaps.h"\n\n')
for i in range(cnt):
f.write(data[i])
f.write('\n')
for i in range(cnt):
f.write(imgs[i])
f.close()
with open('../bitmaps.h', 'wt') as f:
f.write('''#ifndef __BITMAPS_H__
#define __BITMAPS_H__
#include <stdint.h>
typedef struct {
uint8_t width, height;
const uint8_t *data;
} BITMAP;
''')
for i in range(cnt):
f.write(hdrs[i])
f.write('\n#endif\n')
f.close()