quantumgaussianblur.cpp

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/**
 * @file quantumgaussianblur.cpp
 * @brief Implements the quantumgaussianblur visualization component used by QPE.
 * @ingroup qpe_graphics
 *
 * Source: @c graphics/renderer/quantumgaussianblur.cpp. This file is part of Quantum Phenomena Explorer (QPE),
 * maintained by Officina Turini. See LICENSE_IT.txt / LICENSE.txt for the
 * QPE freeware source-available terms and THIRD_PARTY_NOTICES.txt for
 * third-party components.
 */
 
#include "quantumgaussianblur.h"
 
#include <algorithm>
 
namespace qpe {
 
float QuantumGaussianBlur::centerWeight()
{
    return 0.227027f;
}
 
float QuantumGaussianBlur::innerPairWeight()
{
    return 0.316216f;
}
 
float QuantumGaussianBlur::outerPairWeight()
{
    return 0.070270f;
}
 
float QuantumGaussianBlur::innerOffset()
{
    return 1.384615f;
}
 
float QuantumGaussianBlur::outerOffset()
{
    return 3.230769f;
}
 
float QuantumGaussianBlur::normalizedSpread(float spread)
{
    return std::max(0.25f, std::min(8.0f, spread));
}
 
float QuantumGaussianBlur::totalWeight()
{
    return centerWeight() + 2.0f * (innerPairWeight() + outerPairWeight());
}
 
} // namespace qpe