CFHardOverlay< T, ClampPolicy > Struct Template Reference

#include <KoCompositeOpFunctions.h>

Inheritance diagram for CFHardOverlay< T, ClampPolicy >:

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

Detailed Description

template<class T, template< typename > typename ClampPolicy>
struct CFHardOverlay< T, ClampPolicy >

Definition at line 809 of file KoCompositeOpFunctions.h.

Member Function Documentation

composeChannel()

template<class T , template< typename > typename ClampPolicy>

static T CFHardOverlay< T, ClampPolicy >::composeChannel ( T src, T dst )

inlinestatic

Definition at line 810 of file KoCompositeOpFunctions.h.

                                                 {
        using namespace Arithmetic;
        using clamp_policy = ClampPolicy<T>;
        using composite_type = typename KoColorSpaceMathsTraits<T>::compositetype;
 
        if (isZeroValueStrict(dst)) {
            return zeroValue<T>();
        }
 
        if (isUnitValueStrict(src)) {
            return clamp_policy::clippedMaxValue();
        }
 
        if(src >= halfValue<T>()) {
            return clamp_policy::clampResultAllowNegative(
                        clamp_policy::fixInfiniteAfterDivision(
                            divideInCompositeSpace<T>(composite_type(dst),
                                                           2 * composite_type(inv(src)))
                            )
                        );
        }
 
        return clamp_policy::clampResultAllowNegative(
                    multiplyInCompositeSpace<T>(composite_type(dst),
                                                     2 * composite_type(src))
                    );
    }

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

• libs/pigment/compositeops/KoCompositeOpFunctions.h