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https://github.com/Next-Flip/Momentum-Firmware.git
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41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
import heatshrink2
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import argparse
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import io
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parser = argparse.ArgumentParser(
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description="Turn .xbm files into cooked .bm files for flipper FS"
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)
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parser.add_argument("infile", metavar="i", help="Input file")
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parser.add_argument("outfile", metavar="o", help="File to write to")
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args = vars(parser.parse_args())
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with open(args["infile"], "rb") as f:
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output = f.read()
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f = io.StringIO(output.decode().strip())
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print("Image Dimensions:")
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width = int(f.readline().strip().split(" ")[2])
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print("W: ", width)
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height = int(f.readline().strip().split(" ")[2])
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print("H: ", height)
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data = f.read().strip().replace("\n", "").replace(" ", "").split("=")[1][:-1]
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data_str = data[1:-1].replace(",", " ").replace("0x", "")
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data_bin = bytearray.fromhex(data_str)
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data_encoded_str = heatshrink2.compress(data_bin, window_sz2=8, lookahead_sz2=4)
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data_enc = bytearray(data_encoded_str)
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data_enc = bytearray([len(data_enc) & 0xFF, len(data_enc) >> 8]) + data_enc
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if len(data_enc) + 2 < len(data_bin) + 1:
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data = b"\x01\x00" + data_enc
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else:
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data = b"\x00" + data_bin
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with open(args["outfile"], "wb") as f:
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f.write(data)
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