/* ***** BEGIN LICENSE BLOCK *****

* This file is part of Natron <http://www.natron.fr/>,

* Copyright (C) 2015 INRIA and Alexandre Gauthier-Foichat

*

* Natron is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 2 of the License, or

* (at your option) any later version.

*

* Natron 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 General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with Natron. If not, see <http://www.gnu.org/licenses/gpl-2.0.html>

* ***** END LICENSE BLOCK ***** */

// ***** BEGIN PYTHON BLOCK *****

// from <https://docs.python.org/3/c-api/intro.html#include-files>:

// "Since Python may define some pre-processor definitions which affect the standard headers on some systems, you must include Python.h before any standard headers are included."

#include <Python.h>

// ***** END PYTHON BLOCK *****

#include "Hash64.h"

#include <algorithm> // for std::for_each

#if !defined(Q_MOC_RUN) && !defined(SBK_RUN)

#include <boost/crc.hpp>

#endif

#include <QtCore/QString>

#include "Engine/Node.h"

using namespace Natron;

void

Hash64::computeHash()

{

if ( node_values.empty() ) {

return;

}

const unsigned char* data = reinterpret_cast<const unsigned char*>( &node_values.front() );

boost::crc_optimal<64,0x42F0E1EBA9EA3693ULL,0,0,false,false> crc_64;

crc_64 = std::for_each( data, data + node_values.size() * sizeof(node_values[0]), crc_64 );

hash = crc_64();

}

void

Hash64::reset()

{

node_values.clear();

hash = 0;

}

void

Hash64_appendQString(Hash64* hash,

const QString & str)

{

for (int i = 0; i < str.size(); ++i) {

hash->append<unsigned short>( str.at(i).unicode() );

}

}