qpaintengine_raster.cpp File Reference

(a07cb53c2311de255fe6cd677ae487c385a71942)

#include <QtCore/qglobal.h>
#include <QtCore/qmutex.h>
#include <private/qrasterdefs_p.h>
#include <private/qgrayraster_p.h>
#include <qpainterpath.h>
#include <qdebug.h>
#include <qbitmap.h>
#include "qmath_p.h"
#include <qrandom.h>
#include <private/qtextengine_p.h>
#include <private/qfontengine_p.h>
#include <private/qpixmap_raster_p.h>
#include <private/qimage_p.h>
#include <private/qstatictext_p.h>
#include <private/qcosmeticstroker_p.h>
#include <private/qdrawhelper_p.h>
#include <private/qmemrotate_p.h>
#include <private/qpixellayout_p.h>
#include <private/qrgba64_p.h>
#include "qpaintengine_raster_p.h"
#include "qoutlinemapper_p.h"
#include <limits.h>
#include <algorithm>

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Classes
class	QRectVectorPath
struct	ClipData
struct	QRasterFloatPoint
struct	VisibleGlyphRange
class	QGradientCache
struct	QGradientCache::CacheInfo

Macros
#define	QT_FT_BEGIN_HEADER
#define	QT_FT_END_HEADER
#define	qt_swap_int(x, y)   { int tmp = (x); (x) = (y); (y) = tmp; }
#define	qt_swap_qreal(x, y)   { qreal tmp = (x); (x) = (y); (y) = tmp; }
#define	QT_FAST_SPANS
#define	int_dim(pos, dim)   (int(pos+dim) - int(pos))

Enumerations
enum	LineDrawMode { LineDrawClipped , LineDrawNormal , LineDrawIncludeLastPixel }

Functions
Q_GUI_EXPORT bool	qt_scaleForTransform (const QTransform &transform, qreal *scale)
static void	qt_span_fill_clipRect (int count, const QT_FT_Span *spans, void *userData)
static void	qt_span_fill_clipped (int count, const QT_FT_Span *spans, void *userData)
static void	qt_span_clip (int count, const QT_FT_Span *spans, void *userData)
static void	drawEllipse_midpoint_i (const QRect &rect, const QRect &clip, ProcessSpans pen_func, ProcessSpans brush_func, QSpanData *pen_data, QSpanData *brush_data)
static void	qt_ft_outline_move_to (qfixed x, qfixed y, void *data)
static void	qt_ft_outline_line_to (qfixed x, qfixed y, void *data)
static void	qt_ft_outline_cubic_to (qfixed c1x, qfixed c1y, qfixed c2x, qfixed c2y, qfixed ex, qfixed ey, void *data)
static void	qrasterpaintengine_state_setNoClip (QRasterPaintEngineState *s)
static void	qrasterpaintengine_dirty_clip (QRasterPaintEnginePrivate *d, QRasterPaintEngineState *s)
static void	fillRect_normalized (const QRect &r, QSpanData *data, QRasterPaintEnginePrivate *pe)
static QColor	qPremultiplyWithExtraAlpha (const QColor &c, int alpha)
static bool	isAbove (const QPointF *a, const QPointF *b)
static bool	splitPolygon (const QPointF *points, int pointCount, QList< QPointF > *upper, QList< QPointF > *lower)
static int	fast_ceil_positive (const qreal &v)
static const QRect	toAlignedRect_positive (const QRectF &rect)
QRectF	qt_mapRect_non_normalizing (const QRectF &r, const QTransform &t)
static bool	monoVal (const uchar *s, int x)
static VisibleGlyphRange	visibleGlyphRange (const QRectF &clip, QFontEngine *fontEngine, glyph_t *glyphs, QFixedPoint *positions, int numGlyphs)
int	q_gray_rendered_spans (QT_FT_Raster raster)
static uchar *	alignAddress (uchar *address, quintptr alignmentMask)
static const QT_FT_Span *	qt_intersect_spans (const QClipData *clip, int *currentClip, const QT_FT_Span *spans, const QT_FT_Span *end, QT_FT_Span **outSpans, int available)
static int	qt_intersect_spans (QT_FT_Span *&spans, int numSpans, const QRect &clip)
Q_GUI_EXPORT QImage	qt_imageForBrush (int brushStyle, bool invert)
static void	drawEllipsePoints (int x, int y, int length, const QRect &rect, const QRect &clip, ProcessSpans pen_func, ProcessSpans brush_func, QSpanData *pen_data, QSpanData *brush_data)

Macro Definition Documentation

int_dim

#define int_dim	(		pos,
			dim )   (int(pos+dim) - int(pos))

Definition at line 115 of file qpaintengine_raster.cpp.

Referenced by QRasterPaintEngine::drawEllipse().

QT_FAST_SPANS

#define QT_FAST_SPANS

Definition at line 109 of file qpaintengine_raster.cpp.

QT_FT_BEGIN_HEADER

#define QT_FT_BEGIN_HEADER

Definition at line 7 of file qpaintengine_raster.cpp.

QT_FT_END_HEADER

#define QT_FT_END_HEADER

Definition at line 8 of file qpaintengine_raster.cpp.

qt_swap_int

#define qt_swap_int	(		x,
			y )   { int tmp = (x); (x) = (y); (y) = tmp; }

Definition at line 101 of file qpaintengine_raster.cpp.

qt_swap_qreal

#define qt_swap_qreal	(		x,
			y )   { qreal tmp = (x); (x) = (y); (y) = tmp; }

Definition at line 102 of file qpaintengine_raster.cpp.

Enumeration Type Documentation

LineDrawMode

enum LineDrawMode

Enumerator
LineDrawClipped
LineDrawNormal
LineDrawIncludeLastPixel

Definition at line 157 of file qpaintengine_raster.cpp.

Function Documentation

alignAddress()

static uchar * alignAddress ( uchar * address, quintptr alignmentMask )

inlinestatic

Definition at line 3567 of file qpaintengine_raster.cpp.

Referenced by QRasterPaintEnginePrivate::rasterize().

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drawEllipse_midpoint_i()

static void drawEllipse_midpoint_i ( const QRect & rect, const QRect & clip, ProcessSpans pen_func, ProcessSpans brush_func, QSpanData * pen_data, QSpanData * brush_data )

static

Draws an ellipse using the integer point midpoint algorithm.

Definition at line 4803 of file qpaintengine_raster.cpp.

References d, drawEllipsePoints(), and rect.

Referenced by QRasterPaintEngine::drawEllipse().

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drawEllipsePoints()

static void drawEllipsePoints ( int x, int y, int length, const QRect & rect, const QRect & clip, ProcessSpans pen_func, ProcessSpans brush_func, QSpanData * pen_data, QSpanData * brush_data )

inlinestatic

x and y is relative to the midpoint of rect.

Definition at line 4729 of file qpaintengine_raster.cpp.

References QT_FT_Span_::coverage, fill(), QT_FT_Span_::len, qMax(), qMin(), qt_intersect_spans(), rect, QT_FT_Span_::x, and QT_FT_Span_::y.

Referenced by drawEllipse_midpoint_i().

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fast_ceil_positive()

static int fast_ceil_positive ( const qreal & v )

inlinestatic

Definition at line 2075 of file qpaintengine_raster.cpp.

Referenced by toAlignedRect_positive().

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fillRect_normalized()

static void fillRect_normalized ( const QRect & r, QSpanData * data, QRasterPaintEnginePrivate * pe )

static

Definition at line 1362 of file qpaintengine_raster.cpp.

References QPainter::CompositionMode_Source, QPainter::CompositionMode_SourceOver, QT_FT_Span_::coverage, QColor::ExtendedRgb, i, QT_FT_Span_::len, Q_ASSERT, qMax(), qMin(), QT_FT_Span_::x, and QT_FT_Span_::y.

Referenced by QRasterPaintEngine::drawImage(), QRasterPaintEngine::drawImage(), QRasterPaintEngine::drawRects(), QRasterPaintEngine::drawTiledPixmap(), and QRasterPaintEngine::fill().

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isAbove()

static bool isAbove ( const QPointF * a, const QPointF * b )

inlinestatic

Definition at line 1789 of file qpaintengine_raster.cpp.

Referenced by splitPolygon().

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monoVal()

static bool monoVal ( const uchar * s, int x )

inlinestatic

Definition at line 2526 of file qpaintengine_raster.cpp.

Referenced by QRasterPaintEngine::alphaPenBlt().

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q_gray_rendered_spans()

int q_gray_rendered_spans

(

QT_FT_Raster

raster

)

qPremultiplyWithExtraAlpha()

static QColor qPremultiplyWithExtraAlpha ( const QColor & c, int alpha )

static

Definition at line 1754 of file qpaintengine_raster.cpp.

References combineAlpha256(), QColor::ExtendedRgb, QColor::fromRgbF(), qPremultiply(), and Qt::transparent.

Referenced by QRasterPaintEngine::fillRect(), and QSpanData::setup().

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qrasterpaintengine_dirty_clip()

static void qrasterpaintengine_dirty_clip ( QRasterPaintEnginePrivate * d, QRasterPaintEngineState * s )

static

Definition at line 1101 of file qpaintengine_raster.cpp.

References d, and QPaintEngine::DirtyClipPath.

Referenced by QRasterPaintEngine::clip(), and QRasterPaintEngine::clip().

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qrasterpaintengine_state_setNoClip()

static void qrasterpaintengine_state_setNoClip ( QRasterPaintEngineState * s )

static

Definition at line 1093 of file qpaintengine_raster.cpp.

Referenced by QRasterPaintEngine::clip(), QRasterPaintEngine::clip(), QRasterPaintEngine::clip(), and QRasterPaintEnginePrivate::updateClipping().

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qt_ft_outline_cubic_to()

static void qt_ft_outline_cubic_to ( qfixed c1x, qfixed c1y, qfixed c2x, qfixed c2y, qfixed ex, qfixed ey, void * data )

static

Definition at line 204 of file qpaintengine_raster.cpp.

References qt_fixed_to_real.

qt_ft_outline_line_to()

static void qt_ft_outline_line_to ( qfixed x, qfixed y, void * data )

static

Definition at line 199 of file qpaintengine_raster.cpp.

References qt_fixed_to_real.

qt_ft_outline_move_to()

static void qt_ft_outline_move_to ( qfixed x, qfixed y, void * data )

static

Definition at line 194 of file qpaintengine_raster.cpp.

References qt_fixed_to_real.

qt_imageForBrush()

Q_GUI_EXPORT QImage qt_imageForBrush ( int brushStyle, bool invert )

extern

Definition at line 146 of file qbrush.cpp.

qt_intersect_spans() [1/2]

static const QT_FT_Span * qt_intersect_spans ( const QClipData * clip, int * currentClip, const QT_FT_Span * spans, const QT_FT_Span * end, QT_FT_Span ** outSpans, int available )

static

spans must be sorted on y

Definition at line 4019 of file qpaintengine_raster.cpp.

References QClipData::count, QT_FT_Span_::coverage, initialize(), QT_FT_Span_::len, QClipData::m_clipLines, QClipData::m_spans, out, Q_ASSERT, qMax(), qMin(), qt_div_255(), QT_FT_Span_::x, and QT_FT_Span_::y.

Referenced by drawEllipsePoints(), qt_span_clip(), qt_span_fill_clipped(), and qt_span_fill_clipRect().

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qt_intersect_spans() [2/2]

static int qt_intersect_spans ( QT_FT_Span *& spans, int numSpans, const QRect & clip )

static

Definition at line 4109 of file qpaintengine_raster.cpp.

References QRect::bottom(), QRect::left(), QT_FT_Span_::len, qMin(), QRect::right(), QRect::top(), and QT_FT_Span_::y.

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qt_mapRect_non_normalizing()

QRectF qt_mapRect_non_normalizing	(	const QRectF &	r,
		const QTransform &	t )

Definition at line 2151 of file qpaintengine_raster.cpp.

Referenced by QRasterPaintEngine::drawImage().

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qt_scaleForTransform()

Q_GUI_EXPORT bool qt_scaleForTransform ( const QTransform & transform, qreal * scale )

extern

Definition at line 2148 of file qtransform.cpp.

qt_span_clip()

static void qt_span_clip ( int count, const QT_FT_Span * spans, void * userData )

static

Definition at line 4163 of file qpaintengine_raster.cpp.

References QClipData::allocated, QClipData::appendSpans(), QClipData::count, QClipData::initialize(), Qt::IntersectClip, QClipData::m_spans, ClipData::newClip, Qt::NoClip, ClipData::oldClip, ClipData::operation, qt_intersect_spans(), and Qt::ReplaceClip.

Referenced by QRasterPaintEngine::clip().

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qt_span_fill_clipped()

static void qt_span_fill_clipped ( int count, const QT_FT_Span * spans, void * userData )

static

Definition at line 4082 of file qpaintengine_raster.cpp.

References Q_ASSERT, and qt_intersect_spans().

Referenced by QSpanData::adjustSpanMethods().

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qt_span_fill_clipRect()

static void qt_span_fill_clipRect ( int count, const QT_FT_Span * spans, void * userData )

static

Definition at line 4146 of file qpaintengine_raster.cpp.

References Q_ASSERT, and qt_intersect_spans().

Referenced by QSpanData::adjustSpanMethods().

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splitPolygon()

static bool splitPolygon ( const QPointF * points, int pointCount, QList< QPointF > * upper, QList< QPointF > * lower )

static

Definition at line 1794 of file qpaintengine_raster.cpp.

References i, isAbove(), Q_ASSERT, qFuzzyCompare(), QPointF::x(), and QPointF::y().

Referenced by QRasterPaintEngine::fillPolygon().

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toAlignedRect_positive()

static const QRect toAlignedRect_positive ( const QRectF & rect )

inlinestatic

Definition at line 2084 of file qpaintengine_raster.cpp.

References fast_ceil_positive(), and rect.

Referenced by QRasterPaintEngine::drawImage().

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visibleGlyphRange()

static VisibleGlyphRange visibleGlyphRange ( const QRectF & clip, QFontEngine * fontEngine, glyph_t * glyphs, QFixedPoint * positions, int numGlyphs )

static

Definition at line 3008 of file qpaintengine_raster.cpp.

References QRectF::bottom(), QFontEngine::boundingBox(), QFixed::fromReal(), QRectF::left(), positions, QRectF::right(), and QRectF::top().

Referenced by QRasterPaintEngine::drawStaticTextItem(), and QRasterPaintEngine::drawTextItem().

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