(48124977865b76212ef719b19ff37d6bd82ad82d)

#include "qmath.h"
#include "qdrawhelper_p.h"
#include "qmemrotate_p.h"
#include "qpainter.h"
#include <memory>

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Namespaces
namespace	QT_BEGIN_NAMESPACE
	Combined button and popup list for selecting options.

Macros
#define	Z_MASK (0xff << zprec)

#define	ZA_MASK (0xff << (zprec + aprec))

#define	AVG(a, b) ( ((((a)^(b)) & 0xfefefefeUL) >> 1) + ((a)&(b)) )

#define	AVG16(a, b) ( ((((a)^(b)) & 0xf7deUL) >> 1) + ((a)&(b)) )

Functions
template<int shift>
int	QT_BEGIN_NAMESPACE::qt_static_shift (int value)

template<int aprec, int zprec>
void	QT_BEGIN_NAMESPACE::qt_blurinner (uchar *bptr, int &zR, int &zG, int &zB, int &zA, int alpha)

template<int aprec, int zprec>
void	QT_BEGIN_NAMESPACE::qt_blurinner_alphaOnly (uchar *bptr, int &z, int alpha)

template<int aprec, int zprec, bool alphaOnly>
void	QT_BEGIN_NAMESPACE::qt_blurrow (QImage &im, int line, int alpha)

template<int aprec, int zprec, bool alphaOnly>
void	QT_BEGIN_NAMESPACE::expblur (QImage &img, qreal radius, bool improvedQuality=false, int transposed=0)

QImage	qt_halfScaled (const QImage &source)

Q_GUI_EXPORT void	qt_blurImage (QPainter *p, QImage &blurImage, qreal radius, bool quality, bool alphaOnly, int transposed=0)

Q_GUI_EXPORT void	qt_blurImage (QImage &blurImage, qreal radius, bool quality, int transposed=0)

Variables
const int	QT_BEGIN_NAMESPACE::alphaIndex = (QSysInfo::ByteOrder == QSysInfo::BigEndian ? 0 : 3)

Macro Definition Documentation

◆ AVG

#define AVG	(		a,
			b ) ( ((((a)^(b)) & 0xfefefefeUL) >> 1) + ((a)&(b)) )

Definition at line 195 of file qimageeffects.cpp.

Referenced by qt_halfScaled().

◆ AVG16

#define AVG16	(		a,
			b ) ( ((((a)^(b)) & 0xf7deUL) >> 1) + ((a)&(b)) )

Definition at line 196 of file qimageeffects.cpp.

Referenced by qt_halfScaled().

◆ Z_MASK

#define Z_MASK (0xff << zprec)

◆ ZA_MASK

#define ZA_MASK (0xff << (zprec + aprec))

Function Documentation

◆ qt_blurImage() [1/2]

Q_GUI_EXPORT void qt_blurImage	(	QImage &	blurImage,
		qreal	radius,
		bool	quality,
		int	transposed = 0 )

Definition at line 319 of file qimageeffects.cpp.

References QImage::Format_Grayscale8, and QImage::Format_Indexed8.

◆ qt_blurImage() [2/2]

Q_GUI_EXPORT void qt_blurImage	(	QPainter *	p,
		QImage &	blurImage,
		qreal	radius,
		bool	quality,
		bool	alphaOnly,
		int	transposed = 0 )

Definition at line 292 of file qimageeffects.cpp.

References QImage::Format_ARGB32_Premultiplied, QImage::Format_RGB32, qt_halfScaled(), and QPainter::SmoothPixmapTransform.

Referenced by QPixmapDropShadowFilter::draw(), and QPixmapBlurFilter::draw().

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◆ qt_halfScaled()

QImage qt_halfScaled ( const QImage & source )

Definition at line 198 of file qimageeffects.cpp.

References AVG, AVG16, QImage::bits(), QImage::bytesPerLine(), QImage::convertToFormat(), QImage::Format_ARGB32_Premultiplied, QImage::Format_ARGB8565_Premultiplied, QImage::Format_Grayscale8, QImage::Format_Indexed8, QImage::Format_RGB32, QImage::height(), p1, p2, QImage::setDevicePixelRatio(), and QImage::width().

Referenced by qt_blurImage().