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// Copyright (c) 2018 GeometryFactory Sarl (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1/Classification/include/CGAL/Classification/compressed_float.h $
// $Id: include/CGAL/Classification/compressed_float.h b26b07a1242 $
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s) : Simon Giraudot
#ifndef CGAL_CLASSIFICATION_COMPRESSED_FLOAT_H
#define CGAL_CLASSIFICATION_COMPRESSED_FLOAT_H
#include <CGAL/license/Classification.h>
namespace CGAL {
namespace Classification {
/// \cond SKIP_IN_MANUAL
#if defined(CGAL_CLASSIFICATION_DO_NOT_COMPRESS_FLOATS)
typedef float compressed_float;
inline float compress_float (const float& f, const float&, const float&)
{
return f;
}
inline float decompress_float<float> (const float& t, const float&, const float&)
{
return t;
}
#else
# if defined(CGAL_CLASSIFICATION_COMPRESS_FLOATS_WITH_USHORT)
typedef unsigned short compressed_float;
# else // Default = compress with unsigned char
typedef unsigned char compressed_float;
# endif
inline compressed_float compress_float (const float& f, const float& fmin = 0.f, const float& fmax = 1.f)
{
return static_cast<compressed_float>
(float((std::numeric_limits<compressed_float>::max)()) * (f - fmin) / (fmax - fmin));
}
inline float decompress_float (const compressed_float& t, const float& fmin = 0.f, const float& fmax = 1.f)
{
return ((fmax - fmin) * (t / float((std::numeric_limits<compressed_float>::max)())) + fmin);
}
#endif
/// \endcond
} // namespace Classification
} // namespace CGAL
#endif // CGAL_CLASSIFICATION_COMPRESSED_FLOAT_H
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