portapack-mayhem/firmware/tools/bitmap_arr_reverse_decode.py
2024-04-30 08:08:21 +02:00

61 lines
1.6 KiB
Python

#!/usr/bin/env python3
#
# Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
# Copyleft (ɔ) 2024 zxkmm with the GPL license
#
# This file is part of PortaPack.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
from PIL import Image
import numpy as np
bitmap_data = [
0x30, 0x00,
0x30, 0x00,
0x30, 0x00,
0x30, 0x00,
0x30, 0x00,
0x30, 0x00,
0xFC, 0x00,
0xCE, 0x01,
0x86, 0x01,
0xFE, 0x01,
0x86, 0x31,
0x86, 0x49,
0xCE, 0x87,
0xFC, 0x84,
0xFC, 0x4B,
0x78, 0x30,
]
bitmap_size = (16, 16)
image_data = np.zeros((bitmap_size[1], bitmap_size[0]), dtype=np.uint8)
for y in range(bitmap_size[1]):
for x in range(bitmap_size[0]):
byte_index = (y * bitmap_size[0] + x) // 8
bit_index = x % 8
# bit_index = 7 - (x % 8)
pixel_value = (bitmap_data[byte_index] >> bit_index) & 1
image_data[y, x] = pixel_value * 255
image = Image.fromarray(image_data, 'L')
image.save('decoded.png')