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trezor-firmware/legacy/gen/bitmaps/generate.py
2019-04-18 17:40:55 +02:00

65 lines
1.4 KiB
Python
Executable File

#!/usr/bin/env python3
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("// clang-format off\n")
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()