misc/quazip/quaadler32.cpp
author koda
Sun, 06 Nov 2011 17:43:57 +0100
changeset 6301 1259736c0134
parent 5752 ea95ee97c805
permissions -rw-r--r--
engine interaction class refactoring, round 4 or 5, can't remember: this time use the class methods to create an instance object and operates on that, reducing the number of arguments between methods and simplifying memory management

#include "quaadler32.h"

#include "zlib.h"

QuaAdler32::QuaAdler32()
{
	reset();
}

quint32 QuaAdler32::calculate(const QByteArray &data)
{
	return adler32( adler32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() );
}

void QuaAdler32::reset()
{
	checksum = adler32(0L, Z_NULL, 0);
}

void QuaAdler32::update(const QByteArray &buf)
{
	checksum = adler32( checksum, (const Bytef*)buf.data(), buf.size() );
}

quint32 QuaAdler32::value()
{
	return checksum;
}