qimagescale.cpp File Reference

(93047c71e8e6dd4ac28e1e59dcb561df11c759eb)

#include <private/qimagescale_p.h>
#include <private/qdrawhelper_p.h>
#include <private/qimage_p.h>
#include "qimage.h"
#include "qcolor.h"
#include "qrgba64_p.h"
#include "qrgbafloat.h"

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Namespaces
namespace	QImageScale

Functions
static const unsigned int **	QImageScale::qimageCalcYPoints (const unsigned int *src, int sw, int sh, int dh)
static int *	QImageScale::qimageCalcXPoints (int sw, int dw)
static int *	QImageScale::qimageCalcApoints (int s, int d, int up)
static QImageScaleInfo *	QImageScale::qimageFreeScaleInfo (QImageScaleInfo *isi)
static QImageScaleInfo *	QImageScale::qimageCalcScaleInfo (const QImage &img, int sw, int sh, int dw, int dh, char aa)
static void	qt_qimageScaleAARGBA_up_x_down_y (QImageScaleInfo *isi, unsigned int *dest, int dw, int dh, int dow, int sow)
static void	qt_qimageScaleAARGBA_down_x_up_y (QImageScaleInfo *isi, unsigned int *dest, int dw, int dh, int dow, int sow)
static void	qt_qimageScaleAARGBA_down_xy (QImageScaleInfo *isi, unsigned int *dest, int dw, int dh, int dow, int sow)
template<typename T >
static void	multithread_pixels_function (QImageScaleInfo *isi, int dh, const T &scaleSection)
static void	qt_qimageScaleAARGBA_up_xy (QImageScaleInfo *isi, unsigned int *dest, int dw, int dh, int dow, int sow)
static void	qt_qimageScaleAARGBA (QImageScaleInfo *isi, unsigned int *dest, int dw, int dh, int dow, int sow)
static void	qt_qimageScaleAARGBA_helper (const unsigned int *pix, int xyap, int Cxy, int step, int &r, int &g, int &b, int &a)
static void	qt_qimageScaleAARGB_up_x_down_y (QImageScaleInfo *isi, unsigned int *dest, int dw, int dh, int dow, int sow)
static void	qt_qimageScaleAARGB_down_x_up_y (QImageScaleInfo *isi, unsigned int *dest, int dw, int dh, int dow, int sow)
static void	qt_qimageScaleAARGB_down_xy (QImageScaleInfo *isi, unsigned int *dest, int dw, int dh, int dow, int sow)
static void	qt_qimageScaleAARGB (QImageScaleInfo *isi, unsigned int *dest, int dw, int dh, int dow, int sow)
static void	qt_qimageScaleAARGB_helper (const unsigned int *pix, int xyap, int Cxy, int step, int &r, int &g, int &b)
QImage	qSmoothScaleImage (const QImage &src, int dw, int dh)

Function Documentation

multithread_pixels_function()

template<typename T >

static void multithread_pixels_function ( QImageScaleInfo * isi, int dh, const T & scaleSection )

inlinestatic

Definition at line 272 of file qimagescale.cpp.

References QSemaphore::acquire(), QThreadPool::contains(), QThread::currentThread(), i, Q_UNUSED, QThreadPoolPrivate::qtGuiInstance(), QSemaphore::release(), and QThreadPool::start().

Referenced by qt_qimageScaleAARGB_down_x_up_y(), qt_qimageScaleAARGB_down_xy(), qt_qimageScaleAARGB_up_x_down_y(), qt_qimageScaleAARGBA_down_x_up_y(), qt_qimageScaleAARGBA_down_xy(), qt_qimageScaleAARGBA_up_x_down_y(), and qt_qimageScaleAARGBA_up_xy().

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qSmoothScaleImage()

QImage qSmoothScaleImage	(	const QImage &	src,
		int	dw,
		int	dh )

Definition at line 1179 of file qimagescale.cpp.

References QImageScale::qimageCalcScaleInfo(), QImageScale::qimageFreeScaleInfo(), qt_fpColorPrecision(), qt_qimageScaleAARGB(), qt_qimageScaleAARGBA(), qWarning, and QImage::width().

Referenced by QImage::smoothScaled().

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qt_qimageScaleAARGB()

static void qt_qimageScaleAARGB ( QImageScaleInfo * isi, unsigned int * dest, int dw, int dh, int dow, int sow )

static

Definition at line 984 of file qimagescale.cpp.

References qCpuHasFeature, qt_qimageScaleAARGB_down_x_up_y(), qt_qimageScaleAARGB_down_xy(), qt_qimageScaleAARGB_up_x_down_y(), and qt_qimageScaleAARGBA_up_xy().

Referenced by qSmoothScaleImage().

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qt_qimageScaleAARGB_down_x_up_y()

static void qt_qimageScaleAARGB_down_x_up_y ( QImageScaleInfo * isi, unsigned int * dest, int dw, int dh, int dow, int sow )

static

Definition at line 1090 of file qimagescale.cpp.

References multithread_pixels_function(), qRgb(), and qt_qimageScaleAARGB_helper().

Referenced by qt_qimageScaleAARGB().

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qt_qimageScaleAARGB_down_xy()

static void qt_qimageScaleAARGB_down_xy ( QImageScaleInfo * isi, unsigned int * dest, int dw, int dh, int dow, int sow )

static

Definition at line 1129 of file qimagescale.cpp.

References j, multithread_pixels_function(), qRgb(), qt_qimageScaleAARGB_helper(), and rx().

Referenced by qt_qimageScaleAARGB().

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qt_qimageScaleAARGB_helper()

static void qt_qimageScaleAARGB_helper ( const unsigned int * pix, int xyap, int Cxy, int step, int & r, int & g, int & b )

inlinestatic

Definition at line 1033 of file qimagescale.cpp.

References j, pix, qBlue(), qGreen(), and qRed().

Referenced by qt_qimageScaleAARGB_down_x_up_y(), qt_qimageScaleAARGB_down_xy(), and qt_qimageScaleAARGB_up_x_down_y().

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qt_qimageScaleAARGB_up_x_down_y()

static void qt_qimageScaleAARGB_up_x_down_y ( QImageScaleInfo * isi, unsigned int * dest, int dw, int dh, int dow, int sow )

static

Definition at line 1051 of file qimagescale.cpp.

References multithread_pixels_function(), qRgb(), and qt_qimageScaleAARGB_helper().

Referenced by qt_qimageScaleAARGB().

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qt_qimageScaleAARGBA()

static void qt_qimageScaleAARGBA ( QImageScaleInfo * isi, unsigned int * dest, int dw, int dh, int dow, int sow )

static

Definition at line 340 of file qimagescale.cpp.

References qCpuHasFeature, qt_qimageScaleAARGBA_down_x_up_y(), qt_qimageScaleAARGBA_down_xy(), qt_qimageScaleAARGBA_up_x_down_y(), and qt_qimageScaleAARGBA_up_xy().

Referenced by qSmoothScaleImage().

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qt_qimageScaleAARGBA_down_x_up_y()

static void qt_qimageScaleAARGBA_down_x_up_y ( QImageScaleInfo * isi, unsigned int * dest, int dw, int dh, int dow, int sow )

static

Definition at line 450 of file qimagescale.cpp.

References multithread_pixels_function(), qRgba(), and qt_qimageScaleAARGBA_helper().

Referenced by qt_qimageScaleAARGBA().

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qt_qimageScaleAARGBA_down_xy()

static void qt_qimageScaleAARGBA_down_xy ( QImageScaleInfo * isi, unsigned int * dest, int dw, int dh, int dow, int sow )

static

Definition at line 492 of file qimagescale.cpp.

References j, multithread_pixels_function(), qRgba(), qt_qimageScaleAARGBA_helper(), and rx().

Referenced by qt_qimageScaleAARGBA().

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qt_qimageScaleAARGBA_helper()

static void qt_qimageScaleAARGBA_helper ( const unsigned int * pix, int xyap, int Cxy, int step, int & r, int & g, int & b, int & a )

inlinestatic

Definition at line 388 of file qimagescale.cpp.

References j, pix, qAlpha(), qBlue(), qGreen(), and qRed().

Referenced by qt_qimageScaleAARGBA_down_x_up_y(), qt_qimageScaleAARGBA_down_xy(), and qt_qimageScaleAARGBA_up_x_down_y().

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qt_qimageScaleAARGBA_up_x_down_y()

static void qt_qimageScaleAARGBA_up_x_down_y ( QImageScaleInfo * isi, unsigned int * dest, int dw, int dh, int dow, int sow )

static

Definition at line 409 of file qimagescale.cpp.

References multithread_pixels_function(), qRgba(), and qt_qimageScaleAARGBA_helper().

Referenced by qt_qimageScaleAARGBA().

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qt_qimageScaleAARGBA_up_xy()

static void qt_qimageScaleAARGBA_up_xy ( QImageScaleInfo * isi, unsigned int * dest, int dw, int dh, int dow, int sow )

static

Definition at line 298 of file qimagescale.cpp.

References interpolate_4_pixels(), INTERPOLATE_PIXEL_256(), multithread_pixels_function(), and pix.

Referenced by qt_qimageScaleAARGB(), and qt_qimageScaleAARGBA().

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