kis_prescaled_projection.cpp File Reference

#include "kis_prescaled_projection.h"
#include <math.h>
#include <QImage>
#include <QColor>
#include <QRect>
#include <QPoint>
#include <QSize>
#include <QPainter>
#include <KoColorProfile.h>
#include <KoViewConverter.h>
#include "kis_config.h"
#include "kis_image_config.h"
#include "kis_config_notifier.h"
#include "kis_image.h"
#include "krita_utils.h"
#include "kis_coordinates_converter.h"
#include "kis_projection_backend.h"
#include "kis_image_pyramid.h"
#include "kis_display_filter.h"
#include <KisDisplayConfig.h>
#include <KisCanvasState.h>

Go to the source code of this file.

Classes
struct	KisPrescaledProjection::Private

Macros
#define	ceiledSize(sz)   QSize(ceil((sz).width()), ceil((sz).height()))

Functions
void	copyQImage (qint32 deltaX, qint32 deltaY, QImage *dstImage, const QImage &srcImage)
void	copyQImageBuffer (uchar *dst, const uchar *src, qint32 deltaX, qint32 width)

Macro Definition Documentation

ceiledSize

#define ceiledSize

(

sz

)

QSize(ceil((sz).width()), ceil((sz).height()))

Definition at line 69 of file kis_prescaled_projection.cpp.

Function Documentation

copyQImage()

void copyQImage	(	qint32	deltaX,
		qint32	deltaY,
		QImage *	dstImage,
		const QImage &	srcImage )

Definition at line 80 of file kis_prescaled_projection.cpp.

{
    qint32 height = dstImage->height();
    qint32 width = dstImage->width();
    Q_ASSERT(dstImage->width() == srcImage.width() && dstImage->height() == srcImage.height());
    if (deltaY >= 0) {
        for (int y = 0; y < height - deltaY; y ++) {
            const uchar* src = srcImage.scanLine(y);
            uchar* dst = dstImage->scanLine(y + deltaY);
            copyQImageBuffer(dst, src, deltaX, width);
        }
    } else {
        for (int y = 0; y < height + deltaY; y ++) {
            const uchar* src = srcImage.scanLine(y - deltaY);
            uchar* dst = dstImage->scanLine(y);
            copyQImageBuffer(dst, src, deltaX, width);
        }
    }
}

References copyQImageBuffer().

copyQImageBuffer()

void copyQImageBuffer ( uchar * dst, const uchar * src, qint32 deltaX, qint32 width )

inline

Definition at line 71 of file kis_prescaled_projection.cpp.

{
    if (deltaX >= 0) {
        memcpy(dst + 4 * deltaX, src, 4 *(width - deltaX) * sizeof(uchar));
    } else {
        memcpy(dst, src - 4 * deltaX, 4 *(width + deltaX) * sizeof(uchar));
    }
}