First working prototype

.gitignore

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+compress
+uncompress
+*.tmp

Makefile

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+all: compress uncompress
+
+uncompress compress : miniz.c Makefile
+	gcc -DFUNCTION=mz_$@ -o $@ $<
+

decoder.py

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+import qrtools, os
+
+
+def openLevel(imagename):
+	qr = qrtools.QR()
+	assert(qr.decode('cargo.png'))
+	levelData = eval(repr(qr.data)[1:])
+
+	header = levelData[:4]
+	print 'Header:', header.encode('hex')
+
+	compressedData = levelData[4:]
+	f = open('in.tmp','w')
+	f.write(compressedData);
+	f.close()
+	assert(os.system('./uncompress %u < in.tmp > out.tmp'%len(compressedData)) == 0)
+	indata = open('out.tmp').read()
+	[l, data] = indata.split('\n',1)
+	l = int(l)
+	assert l == len(data)
+	nameLen = ord(data[0])
+	name = data[1:1+nameLen]
+	print repr(name)
+	authorLen = ord(data[1+nameLen]) + 1
+	author = data[2+nameLen:1+nameLen+authorLen]
+	print repr(author)
+
+	levelData = data[1+nameLen+authorLen:]
+	print hex(len(levelData))
+	return name, author, levelData
+
+level = openLevel('cargo.png')
+print level