kicad/3d-viewer/3d_rendering/raytracing/mortoncodes.h

48 lines
1.7 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015-2016 Mario Luzeiro <mrluzeiro@ua.pt>
* Copyright (C) 1992-2016 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program 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.
*
* This program 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 this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @file mortoncodes.h
* @brief Implements Morton Codes
* https://fgiesen.wordpress.com/2009/12/13/decoding-morton-codes/
* http://www.forceflow.be/2013/10/07/morton-encodingdecoding-through-bit-interleaving-implementations/
*/
#ifndef _MORTONCODES_H_
#define _MORTONCODES_H_
#include <cstdint>
uint32_t EncodeMorton2( uint32_t x, uint32_t y );
uint32_t EncodeMorton3( uint32_t x, uint32_t y, uint32_t z );
uint32_t DecodeMorton2X( uint32_t code );
uint32_t DecodeMorton2Y( uint32_t code );
uint32_t DecodeMorton3X( uint32_t code );
uint32_t DecodeMorton3Y( uint32_t code );
uint32_t DecodeMorton3Z( uint32_t code );
#endif // _MORTONCODES_H_