77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
/*
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* QR Code generator library (C++)
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*
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* Copyright (c) 2016 Project Nayuki
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* https://www.nayuki.io/page/qr-code-generator-library
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*
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* (MIT License)
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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* - The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* - The Software is provided "as is", without warranty of any kind, express or
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* implied, including but not limited to the warranties of merchantability,
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* fitness for a particular purpose and noninfringement. In no event shall the
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* authors or copyright holders be liable for any claim, damages or other
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* liability, whether in an action of contract, tort or otherwise, arising from,
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* out of or in connection with the Software or the use or other dealings in the
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* Software.
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*/
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#pragma once
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#include <cstdint>
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#include <vector>
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#include "QrSegment.hpp"
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namespace qrcodegen {
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/*
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* An appendable sequence of bits. Bits are packed in big endian within a byte.
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*/
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class BitBuffer final {
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/*---- Fields ----*/
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private:
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std::vector<uint8_t> data;
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int bitLength;
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/*---- Constructor ----*/
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public:
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// Creates an empty bit buffer (length 0).
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BitBuffer();
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/*---- Methods ----*/
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public:
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// Returns the number of bits in the buffer, which is a non-negative value.
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int getBitLength() const;
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// Returns a copy of all bytes, padding up to the nearest byte.
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std::vector<uint8_t> getBytes() const;
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// Appends the given number of bits of the given value to this sequence.
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// If 0 <= len <= 31, then this requires 0 <= val < 2^len.
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void appendBits(uint32_t val, int len);
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// Appends the data of the given segment to this bit buffer.
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void appendData(const QrSegment &seg);
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};
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}
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