fusee: fix buildsystem, rename secondary -> package3

fusee/program/lz4_compress.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python
+import sys, lz4, hashlib
+from struct import unpack as up, pack as pk
+
+def lz4_compress(data):
+    try:
+        import lz4.block as block
+    except ImportError:
+        block = lz4.LZ4_compress
+    return block.compress(data, 'high_compression', store_size=False)
+
+def read_file(fn):
+    with open(fn, 'rb') as f:
+        return f.read()
+
+def get_overlay(program, i):
+    return program[0x2B000 + 0x14000 * i:0x2B000 + 0x14000 * (i+1)]
+
+def main(argc, argv):
+    if argc != 3:
+        print('Usage: %s in out' % argv[0])
+        return 1
+    data = read_file(argv[1])
+    erista_mtc = get_overlay(data, 1)
+    mariko_mtc = get_overlay(data, 2)
+    erista_hsh = hashlib.sha256(erista_mtc[:-4]).digest()[:4]
+    mariko_hsh = hashlib.sha256(mariko_mtc[:-4]).digest()[:4]
+    fusee_program = lz4_compress(data[:0x2B000 - 8] + erista_hsh + mariko_hsh + get_overlay(data, 0)[:0x11000])
+    with open(argv[2], 'wb') as f:
+        f.write(fusee_program)
+
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main(len(sys.argv), sys.argv))