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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-22 23:48:12 +00:00
trezor-firmware/legacy/gen/bitmaps/generate.py
2021-10-13 11:53:17 +02:00

65 lines
1.3 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 = ["1" if x >= 128 else "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(f"Width must be divisible by 8! ({fn} is {w}x{h})")
img = list(im.getdata())
hdrs.append(f"extern const BITMAP bmp_{name};\n")
imgs.append(f"const BITMAP bmp_{name} = {{{w}, {h}, bmp_{name}_data}};\n")
data.append(f"const uint8_t bmp_{name}_data[] = {{ {encode_pixels(img)}}};\n")
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()