#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

Q_GUI_EXPORT void	prepare ()

void	apply (QRgb dst, const QRgb src, qsizetype count, TransformFlags flags=Unpremultiplied) const

void	apply (QRgba64 dst, const QRgba64 src, qsizetype count, TransformFlags flags=Unpremultiplied) const

void	apply (QRgbaFloat32 dst, const QRgbaFloat32 src, qsizetype count, TransformFlags flags=Unpremultiplied) const

void	apply (quint8 dst, const QRgb src, qsizetype count, TransformFlags flags=Unpremultiplied) const

void	apply (quint16 dst, const QRgba64 src, qsizetype count, TransformFlags flags=Unpremultiplied) const

template<typename T >
void	apply (T dst, const T 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 26 of file qcolortransform_p.h.

Member Enumeration Documentation

◆ TransformFlag

enum QColorTransformPrivate::TransformFlag

Defines how the transform is to be applied.

\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 41 of file qcolortransform_p.h.

Member Function Documentation

◆ apply() [1/6]

void QColorTransformPrivate::apply	(	QRgb *	dst,
		const QRgb *	src,
		qsizetype	count,
		TransformFlags	flags = `Unpremultiplied`
	)		const

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

Thread-safe if prepare() has been called first.

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

See also: prepare()

Definition at line 1323 of file qcolortransform.cpp.

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

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◆ apply() [2/6]

void QColorTransformPrivate::apply	(	QRgba64 *	dst,
		const QRgba64 *	src,
		qsizetype	count,
		TransformFlags	flags = `Unpremultiplied`
	)		const

Applies the color transformation on count QRgba64 pixels starting from src and stores the result in dst.

Thread-safe if prepare() has been called first.

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

See also: prepare()

Definition at line 1339 of file qcolortransform.cpp.

◆ apply() [3/6]

void QColorTransformPrivate::apply	(	QRgbaFloat32 *	dst,
		const QRgbaFloat32 *	src,
		qsizetype	count,
		TransformFlags	flags = `Unpremultiplied`
	)		const

Applies the color transformation on count QRgbaFloat32 pixels starting from src and stores the result in dst.

Thread-safe if prepare() has been called first.

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

See also: prepare()

Definition at line 1355 of file qcolortransform.cpp.

◆ apply() [4/6]

void QColorTransformPrivate::apply	(	quint16 *	dst,
		const QRgba64 *	src,
		qsizetype	count,
		TransformFlags	flags = `Unpremultiplied`
	)		const

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

Definition at line 1376 of file qcolortransform.cpp.

◆ apply() [5/6]

void QColorTransformPrivate::apply	(	quint8 *	dst,
		const QRgb *	src,
		qsizetype	count,
		TransformFlags	flags = `Unpremultiplied`
	)		const

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

Definition at line 1366 of file qcolortransform.cpp.

◆ apply() [6/6]

template<typename T >

void QColorTransformPrivate::apply	(	T *	dst,
		const T *	src,
		qsizetype	count,
		TransformFlags	flags
	)		const

Definition at line 1222 of file qcolortransform.cpp.

References colorMatrix, i, InputOpaque, InputPremultiplied, QColorMatrix::isIdentity(), QColorMatrix::isValid(), loadPremultiplied(), loadUnpremultiplied(), OutputPremultiplied, qMin(), storeOpaque(), storePremultiplied(), storeUnpremultiplied(), updateLutsIn(), updateLutsOut(), and WorkBlockSize.

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◆ applyReturnGray()

template<typename D , typename S >

void QColorTransformPrivate::applyReturnGray	(	D *	dst,
		const S *	src,
		qsizetype	count,
		TransformFlags	flags
	)		const

Definition at line 1258 of file qcolortransform.cpp.

References applyMatrix(), colorMatrix, i, InputPremultiplied, QColorMatrix::isValid(), loadPremultiplied(), loadUnpremultiplied(), qMin(), storeGray(), updateLutsIn(), updateLutsOut(), and WorkBlockSize.

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◆ get()

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

inlinestatic

Definition at line 33 of file qcolortransform_p.h.

Referenced by QImage::applyColorTransform(), 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 1385 of file qcolortransform.cpp.

References colorMatrix, colorSpaceIn, colorSpaceOut, QColorSpace::Custom, QColorMatrix::isIdentity(), QColorSpace::Linear, QColorSpacePrivate::transferFunction, and QColorSpacePrivate::trc.

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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.