CFGammaDark< T > Struct Template Reference

#include <KoCompositeOpFunctions.h>

Inheritance diagram for CFGammaDark< T >:

Static Public Member Functions
static T	composeChannel (T src, T dst)
Static Public Member Functions inherited from KoClampedSourceAndDestinationCompositeOpGenericFunctorBase< T >
static T	clampDestinationChannelValue (T value)
static T	clampSourceChannelValue (T value)

Detailed Description

template<class T>
struct CFGammaDark< T >

Definition at line 723 of file KoCompositeOpFunctions.h.

Member Function Documentation

composeChannel()

template<class T >

static T CFGammaDark< T >::composeChannel ( T src, T dst )

inlinestatic

Definition at line 724 of file KoCompositeOpFunctions.h.

                                                 {
        using namespace Arithmetic;
 
        const qreal dstReal = scale<qreal>(dst);
 
        if (isZeroValueFuzzy(dstReal)) {
            return zeroValue<T>();
        }
 
        if (isUnitValueFuzzy(dstReal)) {
            return unitValue<T>();
        }
 
        // power(dst, 1/src)
 
        const qreal srcReal = scale<qreal>(src);
        const qreal exponent = 1.0 / srcReal;
 
        if (std::isfinite(exponent)) {
            return scale<T>(
                std::min<qreal>(pow(dstReal, exponent),
                                KoColorSpaceMathsTraits<T>::max));
        } else {
            return zeroValue<T>();
        }
    }

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The documentation for this struct was generated from the following file:

• libs/pigment/compositeops/KoCompositeOpFunctions.h