mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-24 03:33:08 +00:00
57 lines
1.5 KiB
Python
57 lines
1.5 KiB
Python
|
import logging
|
||
|
import argparse
|
||
|
import subprocess
|
||
|
import io
|
||
|
import os
|
||
|
import sys
|
||
|
|
||
|
ICONS_SUPPORTED_FORMATS = ["png"]
|
||
|
|
||
|
|
||
|
class Image:
|
||
|
def __init__(self, width: int, height: int, data: bytes):
|
||
|
self.width = width
|
||
|
self.height = height
|
||
|
self.data = data
|
||
|
|
||
|
def write(self, filename):
|
||
|
file = open(filename, "wb")
|
||
|
file.write(self.data)
|
||
|
|
||
|
|
||
|
def is_file_an_icon(filename):
|
||
|
extension = filename.lower().split(".")[-1]
|
||
|
return extension in ICONS_SUPPORTED_FORMATS
|
||
|
|
||
|
|
||
|
def file2image(file):
|
||
|
output = subprocess.check_output(["convert", file, "xbm:-"])
|
||
|
assert output
|
||
|
|
||
|
# Extract data from text
|
||
|
f = io.StringIO(output.decode().strip())
|
||
|
width = int(f.readline().strip().split(" ")[2])
|
||
|
height = int(f.readline().strip().split(" ")[2])
|
||
|
data = f.read().strip().replace("\n", "").replace(" ", "").split("=")[1][:-1]
|
||
|
data_str = data[1:-1].replace(",", " ").replace("0x", "")
|
||
|
|
||
|
data_bin = bytearray.fromhex(data_str)
|
||
|
|
||
|
# Encode icon data with LZSS
|
||
|
data_encoded_str = subprocess.check_output(
|
||
|
["heatshrink", "-e", "-w8", "-l4"], input=data_bin
|
||
|
)
|
||
|
|
||
|
assert data_encoded_str
|
||
|
|
||
|
data_enc = bytearray(data_encoded_str)
|
||
|
data_enc = bytearray([len(data_enc) & 0xFF, len(data_enc) >> 8]) + data_enc
|
||
|
|
||
|
# Use encoded data only if its lenght less than original, including header
|
||
|
if len(data_enc) < len(data_bin) + 1:
|
||
|
data = b"\x01\x00" + data_enc
|
||
|
else:
|
||
|
data = b"\x00" + data_bin
|
||
|
|
||
|
return Image(width, height, data)
|