KisColorFromGrayScaleAlphaFloat< _channel_type_, traits > Class Template Reference

Inheritance diagram for KisColorFromGrayScaleAlphaFloat< _channel_type_, traits >:

Public Member Functions
	KisColorFromGrayScaleAlphaFloat (float gmicUnitValue=255.0f)
void	transform (const quint8 *src, quint8 *dst, qint32 nPixels) const override
Public Member Functions inherited from KoColorTransformation
virtual bool	isValid () const
virtual int	parameterId (const QString &name) const
virtual QList< QString >	parameters () const
virtual void	setParameter (int id, const QVariant &parameter)
void	setParameters (const QHash< QString, QVariant > &parameters)
virtual	~KoColorTransformation ()

Private Types
using	RGBPixel = typename RGBTrait::Pixel
using	RGBTrait = traits

Private Attributes
float	m_gmicUnitValue

Detailed Description

template<typename _channel_type_, typename traits>
class KisColorFromGrayScaleAlphaFloat< _channel_type_, traits >

Definition at line 154 of file kis_qmic_simple_convertor.cpp.

Member Typedef Documentation

RGBPixel

template<typename _channel_type_ , typename traits >

using KisColorFromGrayScaleAlphaFloat< _channel_type_, traits >::RGBPixel = typename RGBTrait::Pixel

private

Definition at line 157 of file kis_qmic_simple_convertor.cpp.

RGBTrait

template<typename _channel_type_ , typename traits >

using KisColorFromGrayScaleAlphaFloat< _channel_type_, traits >::RGBTrait = traits

private

Definition at line 156 of file kis_qmic_simple_convertor.cpp.

Constructor & Destructor Documentation

KisColorFromGrayScaleAlphaFloat()

template<typename _channel_type_ , typename traits >

KisColorFromGrayScaleAlphaFloat< _channel_type_, traits >::KisColorFromGrayScaleAlphaFloat ( float gmicUnitValue = 255.0f )

inline

Definition at line 160 of file kis_qmic_simple_convertor.cpp.

        : m_gmicUnitValue(gmicUnitValue)
    {
    }

Member Function Documentation

transform()

template<typename _channel_type_ , typename traits >

void KisColorFromGrayScaleAlphaFloat< _channel_type_, traits >::transform ( const quint8 * src, quint8 * dst, qint32 nPixels ) const

inlineoverridevirtual

This function apply the transformation on a given number of pixels.

Parameters

src	a pointer to the source pixels
dst	a pointer to the destination pixels
nPixels	the number of pixels

This function may or may not be thread safe. You need to create one KoColorTransformation per thread.

Implements KoColorTransformation.

Definition at line 166 of file kis_qmic_simple_convertor.cpp.

    {
        const auto *srcPixel =
            reinterpret_cast<const KoRgbF32Traits::Pixel *>(src);
        auto *dstPixel = reinterpret_cast<RGBPixel *>(dst);
 
        const float gmicUnitValue2KritaUnitValue =
            KoColorSpaceMathsTraits<float>::unitValue / m_gmicUnitValue;
        // warning: green and blue channels on input contain random data!!! see
        // that we copy only one channel when gmic image has grayscale
        // colorspace
        while (nPixels > 0) {
            dstPixel->red = dstPixel->green = dstPixel->blue =
                SCALE_FROM_FLOAT(srcPixel->red * gmicUnitValue2KritaUnitValue);
            dstPixel->alpha = SCALE_FROM_FLOAT(srcPixel->green
                                               * gmicUnitValue2KritaUnitValue);
 
            --nPixels;
            ++srcPixel;
            ++dstPixel;
        }
    }

References KisColorFromGrayScaleAlphaFloat< _channel_type_, traits >::m_gmicUnitValue, and SCALE_FROM_FLOAT.

Member Data Documentation

m_gmicUnitValue

template<typename _channel_type_ , typename traits >

float KisColorFromGrayScaleAlphaFloat< _channel_type_, traits >::m_gmicUnitValue

private

Definition at line 190 of file kis_qmic_simple_convertor.cpp.

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

• plugins/extensions/qmic/kis_qmic_simple_convertor.cpp