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/*
* This file is part of AtracDEnc.
*
* AtracDEnc is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* AtracDEnc is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with AtracDEnc; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <cstdint>
#include <iostream>
#include <vector>
namespace NBitStream {
static inline int MakeSign(int val, unsigned bits) {
unsigned shift = 8 * sizeof(int) - bits;
union { unsigned u; int s; } v = { (unsigned) val << shift };
return v.s >> shift;
}
class TBitStream {
std::vector<char> Buf;
int BitsUsed = 0;
int ReadPos = 0;
public:
TBitStream(const char* buf, int size);
TBitStream();
void Write(uint32_t val, int n);
uint32_t Read(int n);
unsigned long long GetSizeInBits() const;
uint32_t GetBufSize() const { return Buf.size(); };
const std::vector<char>& GetBytes() const {
return Buf;
}
};
} //NBitStream
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