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livetrax/libs/canvas/kiwi/strength.h

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C++

/*-----------------------------------------------------------------------------
| Copyright (c) 2013-2017, Nucleic Development Team.
|
| Distributed under the terms of the Modified BSD License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/
#pragma once
#include <algorithm>
namespace kiwi
{
namespace strength
{
inline double create( double a, double b, double c, double w = 1.0 )
{
double result = 0.0;
result += std::max( 0.0, std::min( 1000.0, a * w ) ) * 1000000.0;
result += std::max( 0.0, std::min( 1000.0, b * w ) ) * 1000.0;
result += std::max( 0.0, std::min( 1000.0, c * w ) );
return result;
}
const double required = create( 1000.0, 1000.0, 1000.0 );
const double strong = create( 1.0, 0.0, 0.0 );
const double medium = create( 0.0, 1.0, 0.0 );
const double weak = create( 0.0, 0.0, 1.0 );
inline double clip( double value )
{
return std::max( 0.0, std::min( required, value ) );
}
} // namespace strength
} // namespace kiwi