#include <qdrawhelper_p.h>

Public Types
enum	Type { None, Solid, LinearGradient, RadialGradient, ConicalGradient, Texture }

Public Functions
void	adjustSpanMethods ()

void	init (QRasterBuffer rb, const QRasterPaintEngine pe)

void	initTexture (const QImage *image, int alpha, QTextureData::Type=QTextureData::Plain, const QRect &sourceRect=QRect())

	QSpanData ()

void	setup (const QBrush &brush, int alpha, QPainter::CompositionMode compositionMode)

void	setupMatrix (const QTransform &matrix, int bilinear)

	~QSpanData ()

Public Variables
union {
QGradientData gradient

QSolidData solid

QTextureData texture

};

AlphamapBlitFunc	alphamapBlit

AlphaRGBBlitFunc	alphaRGBBlit

bool	bilinear

BitmapBlitFunc	bitmapBlit

ProcessSpans	blend

const QClipData *	clip

qreal	dx

qreal	dy

int	fast_matrix: 1

RectFillFunc	fillRect

qreal	m11

qreal	m12

qreal	m13

qreal	m21

qreal	m22

qreal	m23

qreal	m33

QRasterBuffer *	rasterBuffer

QRasterPaintEngine *	rasterEngine

QImage *	tempImage

int	txop: 8

enum QSpanData::Type	type

ProcessSpans	unclipped_blend

Detailed Description

Definition at line 311 of file qdrawhelper_p.h.

Enumerations

◆ Type

enum QSpanData::Type

Enumerator
None
Solid
LinearGradient
RadialGradient
ConicalGradient
Texture

Definition at line 328 of file qdrawhelper_p.h.

               {
         None,
         Solid,
         LinearGradient,
         RadialGradient,
         ConicalGradient,
         Texture
     } type : 8;

Constructors and Destructors

◆ QSpanData()

QSpanData::QSpanData ( )

inline

Definition at line 313 of file qdrawhelper_p.h.

313 : tempImage(0) {}

QSpanData::tempImage

QImage * tempImage

Definition: qdrawhelper_p.h:339

◆ ~QSpanData()

QSpanData::~QSpanData ( )

inline

Definition at line 314 of file qdrawhelper_p.h.

314 { delete tempImage; }

QSpanData::tempImage

QImage * tempImage

Definition: qdrawhelper_p.h:339

Functions

◆ adjustSpanMethods()

void QSpanData::adjustSpanMethods ( )

Definition at line 4927 of file qpaintengine_raster.cpp.

Referenced by QRasterPaintEngine::drawImage(), QRasterPaintEngine::fillRect(), qrasterpaintengine_dirty_clip(), and QRasterPaintEnginePrivate::updateMatrixData().

 {
     bitmapBlit = 0;
     alphamapBlit = 0;
     alphaRGBBlit = 0;
 
     fillRect = 0;
 
     switch(type) {
     case None:
         unclipped_blend = 0;
         break;
     case Solid:
         unclipped_blend = rasterBuffer->drawHelper->blendColor;
         bitmapBlit = rasterBuffer->drawHelper->bitmapBlit;
         alphamapBlit = rasterBuffer->drawHelper->alphamapBlit;
         alphaRGBBlit = rasterBuffer->drawHelper->alphaRGBBlit;
         fillRect = rasterBuffer->drawHelper->fillRect;
         break;
     case LinearGradient:
     case RadialGradient:
     case ConicalGradient:
         unclipped_blend = rasterBuffer->drawHelper->blendGradient;
         break;
     case Texture:
 #ifdef Q_WS_QWS
 #ifndef QT_NO_RASTERCALLBACKS
         if (!rasterBuffer->buffer())
             unclipped_blend = qBlendTextureCallback;
         else
 #endif
             unclipped_blend = qBlendTexture;
 #else
         unclipped_blend = qBlendTexture;
 #endif
         if (!texture.imageData)
             unclipped_blend = 0;
 
         break;
     }
     // setup clipping
     if (!unclipped_blend) {
         blend = 0;
     } else if (!clip) {
         blend = unclipped_blend;
     } else if (clip->hasRectClip) {
         blend = clip->clipRect.isEmpty() ? 0 : qt_span_fill_clipRect;
     } else {
         blend = qt_span_fill_clipped;
     }
 }

◆ init()

void QSpanData::init	(	QRasterBuffer *	rb,
		const QRasterPaintEngine *	pe
	)

Definition at line 4801 of file qpaintengine_raster.cpp.

Referenced by QRasterPaintEngine::begin(), blendCursor(), QScreen::compose(), and QScreen::paintBackground().

 {
     rasterBuffer = rb;
 #ifdef Q_WS_QWS
     rasterEngine = const_cast<QRasterPaintEngine *>(pe);
 #endif
     type = None;
     txop = 0;
     bilinear = false;
     m11 = m22 = m33 = 1.;
     m12 = m13 = m21 = m23 = dx = dy = 0.0;
     clip = pe ? pe->d_func()->clip() : 0;
 }

◆ initTexture()

void QSpanData::initTexture	(	const QImage *	image,
		int	alpha,
		QTextureData::Type	_type = `QTextureData::Plain`,
		const QRect &	sourceRect = `QRect()`
	)

Definition at line 5010 of file qpaintengine_raster.cpp.

Referenced by blendCursor(), QScreen::compose(), QRasterPaintEngine::drawImage(), and QRasterPaintEngine::drawTiledPixmap().

 {
     const QImageData *d = const_cast<QImage *>(image)->data_ptr();
     if (!d || d->height == 0) {
         texture.imageData = 0;
         texture.width = 0;
         texture.height = 0;
         texture.x1 = 0;
         texture.y1 = 0;
         texture.x2 = 0;
         texture.y2 = 0;
         texture.bytesPerLine = 0;
         texture.format = QImage::Format_Invalid;
         texture.colorTable = 0;
         texture.hasAlpha = alpha != 256;
     } else {
         texture.imageData = d->data;
         texture.width = d->width;
         texture.height = d->height;
 
         if (sourceRect.isNull()) {
             texture.x1 = 0;
             texture.y1 = 0;
             texture.x2 = texture.width;
             texture.y2 = texture.height;
         } else {
             texture.x1 = sourceRect.x();
             texture.y1 = sourceRect.y();
             texture.x2 = qMin(texture.x1 + sourceRect.width(), d->width);
             texture.y2 = qMin(texture.y1 + sourceRect.height(), d->height);
         }
 
         texture.bytesPerLine = d->bytes_per_line;
 
         texture.format = d->format;
         texture.colorTable = (d->format <= QImage::Format_Indexed8 && !d->colortable.isEmpty()) ? &d->colortable : 0;
         texture.hasAlpha = image->hasAlphaChannel() || alpha != 256;
     }
     texture.const_alpha = alpha;
     texture.type = _type;
 
     adjustSpanMethods();
 }

◆ setup()

void QSpanData::setup	(	const QBrush &	brush,
		int	alpha,
		QPainter::CompositionMode	compositionMode
	)

Definition at line 4817 of file qpaintengine_raster.cpp.

Referenced by QRasterPaintEngine::begin(), QScreen::compose(), QScreen::paintBackground(), QRasterPaintEngine::updateBrush(), and QRasterPaintEngine::updatePen().

 {
     Qt::BrushStyle brushStyle = qbrush_style(brush);
     switch (brushStyle) {
     case Qt::SolidPattern: {
         type = Solid;
         QColor c = qbrush_color(brush);
         QRgb rgba = c.rgba();
         solid.color = PREMUL(ARGB_COMBINE_ALPHA(rgba, alpha));
         if ((solid.color & 0xff000000) == 0
             && compositionMode == QPainter::CompositionMode_SourceOver) {
             type = None;
         }
         break;
     }
 
     case Qt::LinearGradientPattern:
         {
             type = LinearGradient;
             const QLinearGradient *g = static_cast<const QLinearGradient *>(brush.gradient());
             gradient.alphaColor = !brush.isOpaque() || alpha != 256;
             gradient.colorTable = const_cast<uint*>(qt_gradient_cache()->getBuffer(*g, alpha));
             gradient.spread = g->spread();
 
             QLinearGradientData &linearData = gradient.linear;
 
             linearData.origin.x = g->start().x();
             linearData.origin.y = g->start().y();
             linearData.end.x = g->finalStop().x();
             linearData.end.y = g->finalStop().y();
             break;
         }
 
     case Qt::RadialGradientPattern:
         {
             type = RadialGradient;
             const QRadialGradient *g = static_cast<const QRadialGradient *>(brush.gradient());
             gradient.alphaColor = !brush.isOpaque() || alpha != 256;
             gradient.colorTable = const_cast<uint*>(qt_gradient_cache()->getBuffer(*g, alpha));
             gradient.spread = g->spread();
 
             QRadialGradientData &radialData = gradient.radial;
 
             QPointF center = g->center();
             radialData.center.x = center.x();
             radialData.center.y = center.y();
             radialData.center.radius = g->centerRadius();
             QPointF focal = g->focalPoint();
             radialData.focal.x = focal.x();
             radialData.focal.y = focal.y();
             radialData.focal.radius = g->focalRadius();
         }
         break;
 
     case Qt::ConicalGradientPattern:
         {
             type = ConicalGradient;
             const QConicalGradient *g = static_cast<const QConicalGradient *>(brush.gradient());
             gradient.alphaColor = !brush.isOpaque() || alpha != 256;
             gradient.colorTable = const_cast<uint*>(qt_gradient_cache()->getBuffer(*g, alpha));
             gradient.spread = QGradient::RepeatSpread;
 
             QConicalGradientData &conicalData = gradient.conical;
 
             QPointF center = g->center();
             conicalData.center.x = center.x();
             conicalData.center.y = center.y();
             conicalData.angle = g->angle() * 2 * Q_PI / 360.0;
         }
         break;
 
     case Qt::Dense1Pattern:
     case Qt::Dense2Pattern:
     case Qt::Dense3Pattern:
     case Qt::Dense4Pattern:
     case Qt::Dense5Pattern:
     case Qt::Dense6Pattern:
     case Qt::Dense7Pattern:
     case Qt::HorPattern:
     case Qt::VerPattern:
     case Qt::CrossPattern:
     case Qt::BDiagPattern:
     case Qt::FDiagPattern:
     case Qt::DiagCrossPattern:
         type = Texture;
         if (!tempImage)
             tempImage = new QImage();
         *tempImage = rasterBuffer->colorizeBitmap(qt_imageForBrush(brushStyle, true), brush.color());
         initTexture(tempImage, alpha, QTextureData::Tiled);
         break;
     case Qt::TexturePattern:
         type = Texture;
         if (!tempImage)
             tempImage = new QImage();
 
         if (qHasPixmapTexture(brush) && brush.texture().isQBitmap())
             *tempImage = rasterBuffer->colorizeBitmap(brush.textureImage(), brush.color());
         else
             *tempImage = brush.textureImage();
         initTexture(tempImage, alpha, QTextureData::Tiled, tempImage->rect());
         break;
 
     case Qt::NoBrush:
     default:
         type = None;
         break;
     }
     adjustSpanMethods();
 }

◆ setupMatrix()

void QSpanData::setupMatrix	(	const QTransform &	matrix,
		int	bilinear
	)

Definition at line 4979 of file qpaintengine_raster.cpp.

Referenced by QRasterPaintEngine::drawImage(), QRasterPaintEngine::drawTiledPixmap(), and QRasterPaintEnginePrivate::updateMatrixData().

 {
     QTransform delta;
     // make sure we round off correctly in qdrawhelper.cpp
     delta.translate(1.0 / 65536, 1.0 / 65536);
 
     QTransform inv = (delta * matrix).inverted();
     m11 = inv.m11();
     m12 = inv.m12();
     m13 = inv.m13();
     m21 = inv.m21();
     m22 = inv.m22();
     m23 = inv.m23();
     m33 = inv.m33();
     dx = inv.dx();
     dy = inv.dy();
     txop = inv.type();
     bilinear = bilin;
 
     const bool affine = !m13 && !m23;
     fast_matrix = affine
         && m11 * m11 + m21 * m21 < 1e4
         && m12 * m12 + m22 * m22 < 1e4
         && qAbs(dx) < 1e4
         && qAbs(dy) < 1e4;
 
     adjustSpanMethods();
 }