112 lines
4.1 KiB
Python
Executable file
112 lines
4.1 KiB
Python
Executable file
#!/usr/bin/env python3
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# This Source Code Form is subject to the terms of the
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# Mozilla Public License, v. 2.0. If a copy of the MPL
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# was not distributed with this file, You can obtain
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# one at https://mozilla.org/MPL/2.0/.
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import sys
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import re
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print("MS Paint file converter utility v0.1")
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print("Written by A.M. Rowsell, MPL Version 2.0 license\n")
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if len(sys.argv) < 2:
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print("Please provide filename!")
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print("Example usage:\n./mspconvert.py DONUT.MSP")
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sys.exit(255)
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filename = sys.argv[1]
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filename_ne = re.split(r"\.", filename)[0]
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width = 0
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height = 0
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# The output file follows the very simple XBM format
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# which is just a basic C syntax array variable
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outputString = '''
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#define {0}_width {1}
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#define {0}_height {2}
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static unsigned char {0}_bits [] =
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'''
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# Output data starts as an empty bytearray
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outputData = b''
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try:
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with open(filename, 'rb') as f:
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versionString = f.read(4) # check for the magic bytes
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if versionString == b'\x4c\x69\x6e\x53': # this represents the string "LinS"
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version = 2
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elif versionString == b'\x44\x61\x6e\x4d': # this represents the string "DanM"
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version = 1
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else:
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print("The given file {0} is not a valid Microsoft Paint file!".format(filename))
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sys.exit(255) # exit with -1
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if version == 2:
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print("Version 2 Paint file detected...")
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width = int.from_bytes(f.read(2), "little")
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height = int.from_bytes(f.read(2), "little")
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size = int((width * height) / 8)
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f.seek((height * 2) + 32) # seek to the start of image data
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while(byte := f.read(1)):
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if(int.from_bytes(byte, "little") == 0): # RLL-encoded
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rllLen = int.from_bytes(f.read(1), "little")
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rllValue = f.read(1)
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for i in range(0,rllLen):
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outputData += rllValue
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size -= 1
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else: # read the following number of bytes verbatim
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rllLen = int.from_bytes(byte, "little")
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for i in range(0,rllLen):
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outputData += f.read(1)
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size -= 1
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print("Remaining size: {0}".format(size))
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for i in range(0, size):
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outputData += b'\xff'
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with open(filename_ne + "_converted.xbm", 'w') as f:
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print("Writing output file...")
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f.write(outputString.format(filename, width, height))
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f.write(" {\n")
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q = 0
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for byte in outputData:
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result = int('{:08b}'.format(byte)[::-1], 2)
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f.write("0x" + '{:x}'.format(result) + ", ")
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q += 1
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if q >= 16:
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f.write("\n")
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q = 0
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f.write(" };")
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print("Done!")
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sys.exit(0)
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elif version == 1:
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print("Version 1 Paint detected...")
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width = int.from_bytes(f.read(2), "little")
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height = int.from_bytes(f.read(2), "little")
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f.seek(28)
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q = 0
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outputString = outputString.format(filename, width, height)
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outputString += " {\n"
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while(byte := f.read(1)):
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result = int('{:08b}'.format(int.from_bytes(byte, "big"))[::-1], 2)
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outputString += "0x" + '{:x}'.format(result) + ", "
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q += 1
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if q >= 16:
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outputString += "\n"
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q = 0
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outputString += " };"
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with open(filename_ne + "_converted.xbm", 'w') as f:
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print("Writing output file...")
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f.write(outputString)
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print("Done!")
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sys.exit(0)
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except FileNotFoundError:
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print("{0} does not exist! Quitting...".format(filename))
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sys.exit(255)
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except PermissionError:
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print("Unable to open {0} -- insufficient permissions! Quitting...".format(filename))
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sys.exit(255)
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except Exception:
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print("Something went wrong! Quitting...")
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sys.exit(255)
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