Initial commit of first working version

mspconvert.py

@@ -0,0 +1,94 @@
+#!/usr/bin/env python3
+
+# This Source Code Form is subject to the terms of the
+# Mozilla Public License, v. 2.0. If a copy of the MPL
+# was not distributed with this file, You can obtain
+# one at https://mozilla.org/MPL/2.0/.
+
+import sys
+
+print("MS Paint file converter utility v0.1")
+print("Written by A.M. Rowsell, MPL Version 2.0 license\n\n")
+if len(sys.argv) < 1:
+    print("Please provide filename (without extension)!")
+
+filename = sys.argv[1]
+width = 0
+height = 0
+outputString = '''
+#define {0}_width {1}
+#define {0}_height {2}
+static unsigned char {0}_bits [] =
+'''
+
+outputData = b''
+
+with open(filename + ".MSP", 'rb') as f:
+    versionString = f.read(4)
+    if versionString == b'\x4c\x69\x6e\x53':
+        version = 2
+    elif versionString == b'\x44\x61\x6e\x4d':
+        version = 1
+    else:
+        print("The given file {0}.MSP is not a valid Microsoft Paint file!".format(filename))
+        sys.exit(255)
+
+    if version == 2:
+        print("Version 2 Paint file detected...")
+        width = int.from_bytes(f.read(2), "little")
+        height = int.from_bytes(f.read(2), "little")
+        size = int((width * height) / 8)
+        f.seek((height * 2) + 32) # seek to the start of image data
+        while(byte := f.read(1)):
+            if(int.from_bytes(byte, "little") == 0): # RLL-encoded
+                rllLen = int.from_bytes(f.read(1), "little")
+                rllValue = f.read(1)
+                for i in range(0,rllLen):
+                    outputData += rllValue
+                    size -= 1
+            else:
+                rllLen = int.from_bytes(byte, "little")
+                for i in range(0,rllLen):
+                    outputData += f.read(1)
+                    size -= 1
+        print("Remaining size: {0}".format(size))
+        for i in range(0, size):
+            outputData += b'\xff'
+
+        with open(filename + "_converted.xbm", 'w') as f:
+            print("Writing output file...")
+            f.write(outputString.format(filename, width, height))
+            f.write(" {")
+            q = 0
+            for byte in outputData:
+                result = int('{:08b}'.format(byte)[::-1], 2)
+                f.write("0x" + '{:x}'.format(result) + ", ")
+                q += 1
+                if q >= 16:
+                    f.write("\n")
+                    q = 0
+            f.write(" };")
+        print("Done!")
+        sys.exit(0)
+    elif version == 1:
+        print("Version 1 Paint detected...")
+        width = int.from_bytes(f.read(2), "little")
+        height = int.from_bytes(f.read(2), "little")
+        f.seek(28)
+        q = 0
+        outputString = outputString.format(filename, width, height)
+        outputString += " {\n"
+        while(byte := f.read(1)):
+            result = int('{:08b}'.format(int.from_bytes(byte, "big"))[::-1], 2)
+            outputString += "0x" + '{:x}'.format(result) + ", "
+            q += 1
+            if q >= 16:
+                outputString += "\n"
+                q = 0
+        outputString += " };"
+
+        with open(filename + "_converted.xbm", 'w') as f:
+            print("Writing output file...")
+            f.write(outputString)
+        print("Done!")
+        sys.exit(0)