#include <kis_antialiasing_fade_maker.h>

Public Member Functions
	KisAntialiasingFadeMaker1D (const BaseFade &baseFade, bool enableAntialiasing)

	KisAntialiasingFadeMaker1D (const KisAntialiasingFadeMaker1D &rhs, const BaseFade &baseFade)

bool	needFade (qreal dist, quint8 *value)

template<typename A >
xsimd::batch_bool< float, A >	needFade (xsimd::batch< float, A > &dist)

void	setRadius (qreal radius)

void	setSquareNormCoeffs (qreal xcoeff, qreal ycoeff)

Private Attributes
qreal	m_antialiasingFadeCoeff

qreal	m_antialiasingFadeStart

const BaseFade &	m_baseFade

bool	m_enableAntialiasing

quint8	m_fadeStartValue

qreal	m_radius

Detailed Description

template<class BaseFade>
class KisAntialiasingFadeMaker1D< BaseFade >

Definition at line 16 of file kis_antialiasing_fade_maker.h.

Constructor & Destructor Documentation

◆ KisAntialiasingFadeMaker1D() [1/2]

template<class BaseFade >

KisAntialiasingFadeMaker1D< BaseFade >::KisAntialiasingFadeMaker1D	(	const BaseFade &	baseFade,
		bool	enableAntialiasing )

inline

Definition at line 19 of file kis_antialiasing_fade_maker.h.

        : m_radius(0.0)
        , m_fadeStartValue(0)
        , m_antialiasingFadeStart(0)
        , m_antialiasingFadeCoeff(0)
        , m_enableAntialiasing(enableAntialiasing)
        , m_baseFade(baseFade)
    {
    }

◆ KisAntialiasingFadeMaker1D() [2/2]

template<class BaseFade >

KisAntialiasingFadeMaker1D< BaseFade >::KisAntialiasingFadeMaker1D	(	const KisAntialiasingFadeMaker1D< BaseFade > &	rhs,
		const BaseFade &	baseFade )

inline

Definition at line 29 of file kis_antialiasing_fade_maker.h.

        : m_radius(rhs.m_radius)
        , m_fadeStartValue(rhs.m_fadeStartValue)
        , m_antialiasingFadeStart(rhs.m_antialiasingFadeStart)
        , m_antialiasingFadeCoeff(rhs.m_antialiasingFadeCoeff)
        , m_enableAntialiasing(rhs.m_enableAntialiasing)
        , m_baseFade(baseFade)
    {
    }

Member Function Documentation

◆ needFade() [1/2]

template<class BaseFade >

bool KisAntialiasingFadeMaker1D< BaseFade >::needFade	(	qreal	dist,
		quint8 *	value )

inline

Definition at line 61 of file kis_antialiasing_fade_maker.h.

    {
        if (dist > m_radius) {
            *value = 255;
            return true;
        }
 
        if (!m_enableAntialiasing) {
            return false;
        }
 
        if (dist > m_antialiasingFadeStart) {
            *value = m_fadeStartValue + (dist - m_antialiasingFadeStart) * m_antialiasingFadeCoeff;
            return true;
        }
 
        return false;
    }

References KisAntialiasingFadeMaker1D< BaseFade >::m_antialiasingFadeCoeff, KisAntialiasingFadeMaker1D< BaseFade >::m_antialiasingFadeStart, KisAntialiasingFadeMaker1D< BaseFade >::m_enableAntialiasing, KisAntialiasingFadeMaker1D< BaseFade >::m_fadeStartValue, KisAntialiasingFadeMaker1D< BaseFade >::m_radius, and value().

◆ needFade() [2/2]

template<class BaseFade >

template<typename A >

xsimd::batch_bool< float, A > KisAntialiasingFadeMaker1D< BaseFade >::needFade ( xsimd::batch< float, A > & dist )

inline

Definition at line 82 of file kis_antialiasing_fade_maker.h.

    {
        using float_v = xsimd::batch<float, A>;
        using float_m = typename float_v::batch_bool_type;
 
        const float_v vOne(1);
        const float_v vValMax(255.f);
 
        const float_v vRadius(m_radius);
        const float_v vFadeStartValue(m_fadeStartValue);
        const float_v vAntialiasingFadeStart(m_antialiasingFadeStart);
        const float_v vAntialiasingFadeCoeff(m_antialiasingFadeCoeff);
 
        const float_m outsideMask = dist > vRadius;
        dist = xsimd::set_one(dist, outsideMask);
 
        float_m fadeStartMask(false);
 
        if (m_enableAntialiasing) {
            fadeStartMask = dist > vAntialiasingFadeStart;
            dist = xsimd::select((outsideMask ^ fadeStartMask) & fadeStartMask,
                                 (vFadeStartValue + (dist - vAntialiasingFadeStart) * vAntialiasingFadeCoeff) / vValMax,
                                 dist);
        }
        return (outsideMask | fadeStartMask);
    }

References KisAntialiasingFadeMaker1D< BaseFade >::m_antialiasingFadeCoeff, KisAntialiasingFadeMaker1D< BaseFade >::m_antialiasingFadeStart, KisAntialiasingFadeMaker1D< BaseFade >::m_enableAntialiasing, KisAntialiasingFadeMaker1D< BaseFade >::m_fadeStartValue, KisAntialiasingFadeMaker1D< BaseFade >::m_radius, and xsimd::set_one().

◆ setRadius()

template<class BaseFade >

void KisAntialiasingFadeMaker1D< BaseFade >::setRadius ( qreal radius )

inline

Definition at line 52 of file kis_antialiasing_fade_maker.h.

    {
        m_radius = radius;
        m_antialiasingFadeStart = qMax(0.0, m_radius - 1.0);
 
        m_fadeStartValue = m_baseFade.value(m_antialiasingFadeStart);
        m_antialiasingFadeCoeff = qMax(0.0, 255.0 - m_fadeStartValue) / (m_radius - m_antialiasingFadeStart);
    }

References KisAntialiasingFadeMaker1D< BaseFade >::m_antialiasingFadeCoeff, KisAntialiasingFadeMaker1D< BaseFade >::m_antialiasingFadeStart, KisAntialiasingFadeMaker1D< BaseFade >::m_baseFade, KisAntialiasingFadeMaker1D< BaseFade >::m_fadeStartValue, and KisAntialiasingFadeMaker1D< BaseFade >::m_radius.

◆ setSquareNormCoeffs()

template<class BaseFade >

void KisAntialiasingFadeMaker1D< BaseFade >::setSquareNormCoeffs	(	qreal	xcoeff,
		qreal	ycoeff )

inline

Definition at line 39 of file kis_antialiasing_fade_maker.h.

    {
        m_radius = 1.0;
 
        const qreal xf = qMax(0.0, ((1.0 / xcoeff) - 1.0) * xcoeff);
        const qreal yf = qMax(0.0, ((1.0 / ycoeff) - 1.0) * ycoeff);
 
        m_antialiasingFadeStart = pow2(0.5 * (xf + yf));
 
        m_fadeStartValue = m_baseFade.value(m_antialiasingFadeStart);
        m_antialiasingFadeCoeff = qMax(0.0, 255.0 - m_fadeStartValue) / (m_radius - m_antialiasingFadeStart);
    }