#include <qcolortransform_p.h>

Inheritance diagram for QColorTransformPrivate:

Collaboration diagram for QColorTransformPrivate:

Public Types
enum	TransformFlag { Unpremultiplied = 0 , InputOpaque = 1 , InputPremultiplied = 2 , OutputPremultiplied = 4 , Premultiplied = (InputPremultiplied \| OutputPremultiplied) }

Public Member Functions
void	updateLutsIn () const

void	updateLutsOut () const

bool	isIdentity () const

bool	isThreeComponentMatrix () const

Q_GUI_EXPORT void	prepare ()

QColorVector	map (QColorVector color) const

QColorVector	mapExtended (QColorVector color) const

template<typename D , typename S >
void	apply (D dst, const S src, qsizetype count, TransformFlags flags) const

template<typename D , typename S >
void	applyGray (D dst, const S src, qsizetype count, TransformFlags flags) const

template<typename D , typename S >
void	applyReturnGray (D dst, const S src, qsizetype count, TransformFlags flags) const

Public Member Functions inherited from QSharedData
	QSharedData () noexcept
	Constructs a QSharedData object with a reference count of 0.

	QSharedData (const QSharedData &) noexcept
	Constructs a QSharedData object with reference count 0.

QSharedData &	operator= (const QSharedData &)=delete

	~QSharedData ()=default

Static Public Member Functions
static QColorTransformPrivate *	get (const QColorTransform &q)

Public Attributes
QColorMatrix	colorMatrix

QExplicitlySharedDataPointer< const QColorSpacePrivate >	colorSpaceIn

QExplicitlySharedDataPointer< const QColorSpacePrivate >	colorSpaceOut

Public Attributes inherited from QSharedData
QAtomicInt	ref

Detailed Description

Definition at line 27 of file qcolortransform_p.h.

Member Enumeration Documentation

◆ TransformFlag

enum QColorTransformPrivate::TransformFlag

Defines how the transform should handle alpha values.

\value Unpremultiplied The input and output should both be unpremultiplied. \value InputOpaque The input is guaranteed to be opaque. \value InputPremultiplied The input is premultiplied. \value OutputPremultiplied The output should be premultiplied. \value Premultiplied Both input and output should both be premultiplied.

Enumerator
Unpremultiplied
InputOpaque
InputPremultiplied
OutputPremultiplied
Premultiplied

Definition at line 43 of file qcolortransform_p.h.

Member Function Documentation

◆ apply()

template<typename D , typename S >

template void QColorTransformPrivate::apply< QRgbaFloat32, QRgbaFloat32 >	(	D *	dst,
		const S *	src,
		qsizetype	count,
		TransformFlags	flags ) const

Applies the color transformation on count S pixels starting from src and stores the result in dst as D pixels .

Assumes unpremultiplied data by default. Set flags to change defaults.

See also: prepare()

Definition at line 1782 of file qcolortransform.cpp.

References isThreeComponentMatrix().

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◆ applyGray()

template<typename D , typename S >

template void QColorTransformPrivate::applyGray< QRgba64, quint16 >	(	D *	dst,
		const S *	src,
		qsizetype	count,
		TransformFlags	flags ) const

Definition at line 1857 of file qcolortransform.cpp.

References colorMatrix, colorSpaceIn, colorSpaceOut, i, QColorSpacePrivate::isPcsLab, QColorSpacePrivate::isThreeComponentMatrix(), QColorMatrix::isValid(), j, loadGray(), QColorSpacePrivate::mBA, Q_ASSERT, qMin(), storeOpaque(), storeUnpremultipliedLUT(), updateLutsIn(), updateLutsOut(), visitElement(), and WorkBlockSize.

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◆ applyReturnGray()

template<typename D , typename S >

template void QColorTransformPrivate::applyReturnGray< quint16, QRgba64 >	(	D *	dst,
		const S *	src,
		qsizetype	count,
		TransformFlags	flags ) const

Is to be called on a color-transform to XYZ, returns only luminance values.

Definition at line 1797 of file qcolortransform.cpp.

References colorMatrix, colorSpaceIn, colorSpaceOut, i, InputPremultiplied, QColorSpacePrivate::isPcsLab, QColorSpacePrivate::isThreeComponentMatrix(), QColorMatrix::isValid(), j, loadPremultiplied(), loadUnpremultiplied(), Q_ASSERT, qMin(), storeOpaque(), updateLutsIn(), updateLutsOut(), and WorkBlockSize.

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◆ get()

static QColorTransformPrivate * QColorTransformPrivate::get ( const QColorTransform & q )

inlinestatic

Definition at line 34 of file qcolortransform_p.h.

Referenced by QImage::applyColorTransform(), QImage::colorTransformed(), QImage::colorTransformed(), QImage::colorTransformed(), convert_ARGB_to_gray16(), convert_ARGB_to_gray8(), convert_RGBA64_to_gray16(), convert_RGBA64_to_gray8(), destStoreGray16(), and destStoreGray8().

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◆ isIdentity()

bool QColorTransformPrivate::isIdentity ( ) const

Definition at line 1985 of file qcolortransform.cpp.

References colorMatrix, colorSpaceIn, colorSpaceOut, QExplicitlySharedDataPointer< T >::constData(), QColorSpace::Custom, QColorSpacePrivate::equals(), QColorMatrix::isIdentity(), isThreeComponentMatrix(), QColorSpace::Linear, QColorSpacePrivate::transferFunction, and QColorSpacePrivate::trc.

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◆ isThreeComponentMatrix()

bool QColorTransformPrivate::isThreeComponentMatrix ( ) const

Definition at line 1973 of file qcolortransform.cpp.

References colorSpaceIn, colorSpaceOut, and QColorSpacePrivate::isThreeComponentMatrix().

Referenced by apply(), and isIdentity().

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◆ map()

QColorVector QColorTransformPrivate::map ( QColorVector c ) const

Definition at line 1540 of file qcolortransform.cpp.

References QColorTrc::apply(), QColorTrc::applyInverse(), colorMatrix, colorSpaceIn, colorSpaceOut, QColorSpacePrivate::isPcsLab, QColorSpacePrivate::isThreeComponentMatrix(), QColorSpacePrivate::lut, QColorSpacePrivate::mAB, QColorMatrix::map(), QColorSpacePrivate::mBA, QColorSpacePrivate::trc, visitElement(), and QColorVector::x.

Referenced by QColorTransform::map(), and QColorTransform::map().

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◆ mapExtended()

QColorVector QColorTransformPrivate::mapExtended ( QColorVector c ) const

Definition at line 1598 of file qcolortransform.cpp.

References QColorTrc::applyExtended(), QColorTrc::applyInverseExtended(), colorMatrix, colorSpaceIn, colorSpaceOut, QColorSpacePrivate::isPcsLab, QColorSpacePrivate::isThreeComponentMatrix(), QColorVector::labToXyz(), QColorSpacePrivate::mAB, QColorMatrix::map(), QColorSpacePrivate::mBA, QColorSpacePrivate::trc, visitElement(), QColorVector::x, and QColorVector::xyzToLab().

Referenced by QColorTransform::map(), QColorTransform::map(), and QColorTransform::map().

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◆ prepare()

void QColorTransformPrivate::prepare ( )

Prepares a color transformation for fast application. You do not need to call this explicitly as it will be called implicitly on the first transforms, but if you want predictable performance on the first transforms, you can perform it in advance.