QColorTransformPrivate Class Reference

#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 ()
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
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 42 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 1971 of file qcolortransform.cpp.

References updateLutsIn(), and updateLutsOut().

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get()

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

inlinestatic

Definition at line 34 of file qcolortransform_p.h.

isIdentity()

bool QColorTransformPrivate::isIdentity

(

)

const

Definition at line 2050 of file qcolortransform.cpp.

Referenced by QColorSpacePrivate::transformationToColorSpace().

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map()

QColorVector QColorTransformPrivate::map

(

QColorVector

c

)

const

Definition at line 1723 of file qcolortransform.cpp.

mapExtended()

QColorVector QColorTransformPrivate::mapExtended

(

QColorVector

c

)

const

Definition at line 1781 of file qcolortransform.cpp.

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.

See also

QColorTransform::map(), apply()

Definition at line 2015 of file qcolortransform.cpp.

References updateLutsIn(), and updateLutsOut().

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updateLutsIn()

QT_BEGIN_NAMESPACE void QColorTransformPrivate::updateLutsIn

(

)

const

Definition at line 25 of file qcolortransform.cpp.

Referenced by apply(), and prepare().

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updateLutsOut()

void QColorTransformPrivate::updateLutsOut

(

)

const

Definition at line 50 of file qcolortransform.cpp.

Referenced by apply(), and prepare().

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Member Data Documentation

colorMatrix

QColorMatrix QColorTransformPrivate::colorMatrix

Definition at line 30 of file qcolortransform_p.h.

colorSpaceIn

QExplicitlySharedDataPointer<const QColorSpacePrivate> QColorTransformPrivate::colorSpaceIn

Definition at line 31 of file qcolortransform_p.h.

colorSpaceOut

QExplicitlySharedDataPointer<const QColorSpacePrivate> QColorTransformPrivate::colorSpaceOut

Definition at line 32 of file qcolortransform_p.h.

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

• qtbase/src/gui/painting/qcolortransform_p.h (e673e5a257569eaa816c6acd31dd754efd9f8c75)
• qtbase/src/gui/painting/qcolortransform.cpp (11dc7e1c05d83d45c5057d50560037a2da4416a8)