blob: 4dc9f7b78ce45301ad50b659a3dfce81c816dad2 [file] [log] [blame]
/*
* QR Code generator library (C++)
*
* Copyright (c) Project Nayuki. (MIT License)
* https://www.nayuki.io/page/qr-code-generator-library
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
* - The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* - The Software is provided "as is", without warranty of any kind, express or
* implied, including but not limited to the warranties of merchantability,
* fitness for a particular purpose and noninfringement. In no event shall the
* authors or copyright holders be liable for any claim, damages or other
* liability, whether in an action of contract, tort or otherwise, arising from,
* out of or in connection with the Software or the use or other dealings in the
* Software.
*/
#include "BitBuffer.hpp"
#include "starboard/log.h"
#define throw SB_CHECK(false) <<
namespace qrcodegen {
BitBuffer::BitBuffer()
: std::vector<bool>() {}
std::vector<std::uint8_t> BitBuffer::getBytes() const {
std::vector<std::uint8_t> result(size() / 8 + (size() % 8 == 0 ? 0 : 1));
for (std::size_t i = 0; i < size(); i++)
result[i >> 3] |= (*this)[i] ? 1 << (7 - (i & 7)) : 0;
return result;
}
void BitBuffer::appendBits(std::uint32_t val, int len) {
if (len < 0 || len > 31 || val >> len != 0)
throw "Value out of range";
for (int i = len - 1; i >= 0; i--) // Append bit by bit
this->push_back(((val >> i) & 1) != 0);
}
}