userspace: Add LibQR

This library can be used to generate QR codes

userspace/libraries/LibQR/include/LibQR/QRCode.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <BAN/ByteSpan.h>
+#include <BAN/Errors.h>
+
+namespace LibQR
+{
+
+	class QRCode
+	{
+		BAN_NON_COPYABLE(QRCode);
+
+	public:
+		static BAN::ErrorOr<QRCode> create(size_t size);
+		static BAN::ErrorOr<QRCode> generate(BAN::ConstByteSpan data);
+		BAN::ErrorOr<QRCode> copy() const;
+
+		QRCode(QRCode&& other);
+		QRCode& operator=(QRCode&&) = delete;
+
+		~QRCode();
+
+		void set(size_t x, size_t y, bool value);
+
+		void toggle(size_t x, size_t y);
+
+		bool get(size_t x, size_t y) const;
+
+		size_t size() const;
+
+	private:
+		QRCode(size_t size, uint8_t* data);
+
+		const size_t m_size;
+		uint8_t* m_data;
+	};
+
+}