chromatic_adaptations.h

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#pragma once
 
#include "Math/Color/color_enums.h"
#include "Math/Color/color_basics.h"
#include "Math/TMatrix3.h"
 
#include <concepts>
 
namespace ph::math
{
 
template<typename DefType, typename T>
concept CChromaticAdaptationDefinition = requires (
    EReferenceWhite       srcRefWhite,
    EReferenceWhite       dstRefWhite,
    TTristimulusValues<T> CIEXYZColor)
{
    { DefType::getAlgorithm() } noexcept -> std::same_as<EChromaticAdaptation>;
    { DefType::adapt(CIEXYZColor, srcRefWhite, dstRefWhite) } -> std::same_as<TTristimulusValues<T>>;
};
 
template<EChromaticAdaptation ALGORITHM, typename T>
class TChromaticAdaptationDefinition final
{
    // Available algorithms must provide definition and thus should not end up here.
    static_assert(ALGORITHM == EChromaticAdaptation::Unspecified,
        "No definition for the specified chromatic adaptation ALGORITHM.");
};
 
template<EChromaticAdaptation ALGORITHM, typename T>
TTristimulusValues<T> chromatic_adapt(
    const TTristimulusValues<T>& srcCIEXYZColor,
    EReferenceWhite              srcRefWhite,
    EReferenceWhite              dstRefWhite);
 
template<typename T>
TMatrix3<T> create_von_kries_linear_CAT_matrix(
    const TMatrix3<T>&    CIEXYZToConeResponse,
    const TMatrix3<T>&    ConeResponseToCIEXYZ,
    const EReferenceWhite srcRefWhite,
    const EReferenceWhite dstRefWhite);
 
template<typename T>
TMatrix3<T> create_von_kries_linear_CAT_matrix(
    const TMatrix3<T>&           CIEXYZToConeResponse,
    const TMatrix3<T>&           ConeResponseToCIEXYZ,
    const TTristimulusValues<T>& srcRefWhite,
    const TTristimulusValues<T>& dstRefWhite);
 
}// end namespace ph::math
 
#include "Math/Color/chromatic_adaptations.ipp"