74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
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// Copyright (c) 2018 GeometryFactory Sarl (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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// You can redistribute it and/or modify it under the terms of the GNU
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// General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: GPL-3.0+
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//
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// Author(s) : Simon Giraudot
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#ifndef CGAL_CLASSIFICATION_COMPRESSED_FLOAT_H
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#define CGAL_CLASSIFICATION_COMPRESSED_FLOAT_H
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#include <CGAL/license/Classification.h>
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namespace CGAL {
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namespace Classification {
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/// \cond SKIP_IN_MANUAL
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#if defined(CGAL_CLASSIFICATION_DO_NOT_COMPRESS_FLOATS)
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typedef float compressed_float;
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inline float compress_float (const float& f, const float&, const float&)
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{
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return f;
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}
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inline float decompress_float<float> (const float& t, const float&, const float&)
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{
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return t;
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}
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#else
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# if defined(CGAL_CLASSIFICATION_COMPRESS_FLOATS_WITH_USHORT)
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typedef unsigned short compressed_float;
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# else // Default = compress with unsigned char
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typedef unsigned char compressed_float;
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# endif
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inline compressed_float compress_float (const float& f, const float& min = 0.f, const float& max = 1.f)
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{
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return static_cast<compressed_float>
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(float(std::numeric_limits<compressed_float>::max()) * (f - min) / (max - min));
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}
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inline float decompress_float (const compressed_float& t, const float& min = 0.f, const float& max = 1.f)
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{
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return ((max - min) * (t / float(std::numeric_limits<compressed_float>::max())) + min);
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}
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#endif
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/// \endcond
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} // namespace Classification
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} // namespace CGAL
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#endif // CGAL_CLASSIFICATION_COMPRESSED_FLOAT_H
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