#include "quacrc32.h"

#include "zlib.h"

QuaCrc32::QuaCrc32()

{

	reset();

}

quint32 QuaCrc32::calculate(const QByteArray &data)

{

	return crc32( crc32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() );

}

void QuaCrc32::reset()

{

	checksum = crc32(0L, Z_NULL, 0);

}

void QuaCrc32::update(const QByteArray &buf)

{

	checksum = crc32( checksum, (const Bytef*)buf.data(), buf.size() );

}

quint32 QuaCrc32::value()

{

	return checksum;

}