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/****************************************************************************
* Copyright (C) from 2009 to Present EPAM Systems.
*
* This file is part of Indigo toolkit.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
***************************************************************************/
#include "base_cpp/bitoutworker.h"
#include "base_cpp/output.h"
using namespace indigo;
BitOutWorker::BitOutWorker(int StartBits, Output& NewOut) : _bits(StartBits), _output(NewOut)
{
_bitBuffer = 0;
_bitBufferCount = 0;
};
bool BitOutWorker::writeBits(int Code)
{
unsigned int offset = sizeof(int) * 8 - _bits - _bitBufferCount, UCode = (unsigned)Code;
_bitBuffer |= (dword)UCode << offset;
_bitBufferCount += _bits;
while (_bitBufferCount >= 8)
{
unsigned int next_byte;
next_byte = _bitBuffer >> ((sizeof(int) - sizeof(char)) * 8);
_output.writeByte(next_byte);
_bitBuffer <<= 8;
_bitBufferCount -= 8;
}
return true;
}
void BitOutWorker::close(void)
{
unsigned int last_byte;
if (_bitBufferCount)
{
last_byte = _bitBuffer >> ((sizeof(int) - sizeof(char)) * 8);
_output.writeByte(last_byte);
_bitBufferCount = 0;
_bitBuffer = 0L;
}
}
BitOutWorker::~BitOutWorker(void)
{
close();
}
/* END OF 'BITOUTWORKER.CPP' FILE */
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