LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation Struct Reference

Inheritance diagram for LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation:

Public Member Functions
	KoLcmsColorTransformation (const KoColorSpace *colorSpace)
void	transform (const quint8 *src, quint8 *dst, qint32 nPixels) const override
	~KoLcmsColorTransformation () 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 ()

Public Attributes
cmsHTRANSFORM	cmsAlphaTransform
cmsHTRANSFORM	cmstransform
cmsHPROFILE	csProfile
const KoColorSpace *	m_colorSpace
cmsHPROFILE	profiles [3]

Detailed Description

template<class _CSTraits>
struct LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation

Definition at line 73 of file LcmsColorSpace.h.

Constructor & Destructor Documentation

KoLcmsColorTransformation()

template<class _CSTraits >

LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::KoLcmsColorTransformation ( const KoColorSpace * colorSpace )

inline

Definition at line 75 of file LcmsColorSpace.h.

            : KoColorTransformation()
            , m_colorSpace(colorSpace)
        {
            csProfile = 0;
            cmstransform = 0;
            cmsAlphaTransform = 0;
            profiles[0] = 0;
            profiles[1] = 0;
            profiles[2] = 0;
        }

References LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::cmsAlphaTransform, LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::cmstransform, LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::csProfile, and LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::profiles.

~KoLcmsColorTransformation()

template<class _CSTraits >

LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::~KoLcmsColorTransformation ( )

inlineoverride

Definition at line 87 of file LcmsColorSpace.h.

        {
 
            if (cmstransform) {
                cmsDeleteTransform(cmstransform);
            }
            if (profiles[0] && profiles[0] != csProfile) {
                cmsCloseProfile(profiles[0]);
            }
            if (profiles[1] && profiles[1] != csProfile) {
                cmsCloseProfile(profiles[1]);
            }
            if (profiles[2] && profiles[2] != csProfile) {
                cmsCloseProfile(profiles[2]);
            }
        }

References LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::cmstransform, LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::csProfile, and LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::profiles.

Member Function Documentation

transform()

template<class _CSTraits >

void LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::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 104 of file LcmsColorSpace.h.

        {
            cmsDoTransform(cmstransform, const_cast<quint8 *>(src), dst, nPixels);
 
            qint32 numPixels = nPixels;
            qint32 pixelSize = m_colorSpace->pixelSize();
            int index = 0;
 
            if (cmsAlphaTransform) {
                float *alpha = new float[nPixels];
                float *dstalpha = new float[nPixels];
 
                while (index < nPixels) {
                    alpha[index] = m_colorSpace->opacityF(src);
                    src += pixelSize;
                    index++;
                }
 
                cmsDoTransform(cmsAlphaTransform, const_cast<float *>(alpha), static_cast<float *>(dstalpha), nPixels);
                for (int i = 0; i < numPixels; i++) {
                    m_colorSpace->setOpacity(dst, dstalpha[i], 1);
                    dst += pixelSize;
                }
 
                delete [] alpha;
                delete [] dstalpha;
            } else {
                while (numPixels > 0) {
                    qreal alpha = m_colorSpace->opacityF(src);
                    m_colorSpace->setOpacity(dst, alpha, 1);
                    src += pixelSize;
                    dst += pixelSize;
                    numPixels--;
                }
            }
        }

References LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::cmsAlphaTransform, LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::cmstransform, LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::m_colorSpace, KoColorSpace::opacityF(), KoColorSpace::pixelSize(), KoColorSpaceAbstract< _CSTraits >::pixelSize(), and KoColorSpace::setOpacity().

Member Data Documentation

cmsAlphaTransform

template<class _CSTraits >

cmsHTRANSFORM LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::cmsAlphaTransform

Definition at line 145 of file LcmsColorSpace.h.

cmstransform

template<class _CSTraits >

cmsHTRANSFORM LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::cmstransform

Definition at line 144 of file LcmsColorSpace.h.

csProfile

template<class _CSTraits >

cmsHPROFILE LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::csProfile

Definition at line 142 of file LcmsColorSpace.h.

m_colorSpace

template<class _CSTraits >

const KoColorSpace* LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::m_colorSpace

Definition at line 141 of file LcmsColorSpace.h.

profiles

template<class _CSTraits >

cmsHPROFILE LcmsColorSpace< _CSTraits >::KoLcmsColorTransformation::profiles[3]

Definition at line 143 of file LcmsColorSpace.h.

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

• plugins/color/lcms2engine/LcmsColorSpace.h