toolchain: add initial retro-embedimage.py (#33)

FossilOrigin-Name: 41f9df0b112454e37aae00ad0c9d1bcc054331f7e5eb9b038733884d82c3e143

tools/retro-embedimage.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+
+# retro-embedimage
+#
+# This takes an ngaImage and generates a version that provides the
+# image as a Python list. Output is written to stdout.
+#
+# Copyright (c) 2020, Charles Childers
+#
+# Usage:
+#
+#     retro-embedimage.py [image]
+
+
+import os, sys, struct
+from struct import pack, unpack
+
+if __name__ == "__main__":
+    cells = int(os.path.getsize(sys.argv[1]) / 4)
+    f = open("ngaImage", "rb")
+    memory = list(struct.unpack(cells * "i", f.read()))
+    f.close()
+    count = 0
+    print('Image = [')
+    for cell in memory:
+        print(cell, end=', ')
+        count = count + 1
+        if count > 10:
+            print('')
+            count = 0
+    print(']')