mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 08:16:09 +03:00
46 lines
911 B
C++
46 lines
911 B
C++
// Copyright (c) 2016 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "net/tools/huffman_trie/bit_writer.h"
|
|
|
|
#include "base/logging.h"
|
|
|
|
namespace net {
|
|
|
|
namespace huffman_trie {
|
|
|
|
BitWriter::BitWriter() = default;
|
|
|
|
BitWriter::~BitWriter() = default;
|
|
|
|
void BitWriter::WriteBits(uint32_t bits, uint8_t number_of_bits) {
|
|
DCHECK(number_of_bits <= 32);
|
|
for (uint8_t i = 1; i <= number_of_bits; i++) {
|
|
uint8_t bit = 1 & (bits >> (number_of_bits - i));
|
|
WriteBit(bit);
|
|
}
|
|
}
|
|
|
|
void BitWriter::WriteBit(uint8_t bit) {
|
|
current_byte_ |= bit << (7 - used_);
|
|
used_++;
|
|
position_++;
|
|
|
|
if (used_ == 8) {
|
|
Flush();
|
|
}
|
|
}
|
|
|
|
void BitWriter::Flush() {
|
|
position_ += (8 - used_);
|
|
bytes_.push_back(current_byte_);
|
|
|
|
used_ = 0;
|
|
current_byte_ = 0;
|
|
}
|
|
|
|
} // namespace huffman_trie
|
|
|
|
} // namespace net
|