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  1. /*
  2. * This program source code file is part of KiCad, a free EDA CAD application.
  3. *
  4. * Copyright (C) 2015-2016 Mario Luzeiro <mrluzeiro@ua.pt>
  5. * Copyright (C) 1992-2016 KiCad Developers, see AUTHORS.txt for contributors.
  6. *
  7. * This program is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU General Public License
  9. * as published by the Free Software Foundation; either version 2
  10. * of the License, or (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, you may find one here:
  19. * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
  20. * or you may search the http://www.gnu.org website for the version 2 license,
  21. * or you may write to the Free Software Foundation, Inc.,
  22. * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  23. */
  24. /**
  25. * @file mortoncodes.h
  26. * @brief Implements Morton Codes
  27. * https://fgiesen.wordpress.com/2009/12/13/decoding-morton-codes/
  28. * http://www.forceflow.be/2013/10/07/morton-encodingdecoding-through-bit-interleaving-implementations/
  29. */
  30. #ifndef _MORTONCODES_H_
  31. #define _MORTONCODES_H_
  32. #include <cstdint>
  33. uint32_t EncodeMorton2( uint32_t x, uint32_t y );
  34. uint32_t EncodeMorton3( uint32_t x, uint32_t y, uint32_t z );
  35. uint32_t DecodeMorton2X( uint32_t code );
  36. uint32_t DecodeMorton2Y( uint32_t code );
  37. uint32_t DecodeMorton3X( uint32_t code );
  38. uint32_t DecodeMorton3Y( uint32_t code );
  39. uint32_t DecodeMorton3Z( uint32_t code );
  40. #endif // _MORTONCODES_H_