qtessellator.cpp File Reference

(02de77535f2a94cbeb7e0ea01895ba4e556e165c)

#include "qtessellator_p.h"
#include <QRect>
#include <QList>
#include <QMap>
#include <QDebug>
#include <qmath.h>
#include <limits.h>
#include <algorithm>

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Classes
class	QTessellatorPrivate
struct	QTessellatorPrivate::Vertex
struct	QTessellatorPrivate::Intersection
struct	QTessellatorPrivate::IntersectionLink
struct	QTessellatorPrivate::Edge
class	QTessellatorPrivate::EdgeSorter
class	QTessellatorPrivate::Scanline
struct	QTessellatorPrivate::Vertices
struct	QCoincidingEdge

Macros
#define	QDEBUG   if (1){} else qDebug

Enumerations
enum	VertexFlags {   LineBeforeStarts = 0x1 , LineBeforeEnds = 0x2 , LineBeforeHorizontal = 0x4 , LineAfterStarts = 0x8 ,   LineAfterEnds = 0x10 , LineAfterHorizontal = 0x20 , LineBeforeStarts = 0x1 , LineBeforeEnds = 0x2 ,   LineBeforeHorizontal = 0x4 , LineAfterStarts = 0x8 , LineAfterEnds = 0x10 , LineAfterHorizontal = 0x20 }
enum	VertexFlags {   LineBeforeStarts = 0x1 , LineBeforeEnds = 0x2 , LineBeforeHorizontal = 0x4 , LineAfterStarts = 0x8 ,   LineAfterEnds = 0x10 , LineAfterHorizontal = 0x20 , LineBeforeStarts = 0x1 , LineBeforeEnds = 0x2 ,   LineBeforeHorizontal = 0x4 , LineAfterStarts = 0x8 , LineAfterEnds = 0x10 , LineAfterHorizontal = 0x20 }

Functions
static bool	sameSign (qint64 a, qint64 b)
static bool	compareVertex (const QTessellatorPrivate::Vertex *p1, const QTessellatorPrivate::Vertex *p2)
static void	fillTrapezoid (Q27Dot5 y1, Q27Dot5 y2, int left, int right, const QTessellatorPrivate::Vertices &vertices, QTessellator::Trapezoid *trap)
static void	cancelEdges (QCoincidingEdge &e1, QCoincidingEdge &e2)

Variables
static const bool	emit_clever = true
static const bool	mark_clever = false

Macro Definition Documentation

QDEBUG

#define QDEBUG   if (1){} else qDebug

Definition at line 22 of file qtessellator.cpp.

Enumeration Type Documentation

VertexFlags [1/2]

enum VertexFlags

Enumerator
LineBeforeStarts
LineBeforeEnds
LineBeforeHorizontal
LineAfterStarts
LineAfterEnds
LineAfterHorizontal
LineBeforeStarts
LineBeforeEnds
LineBeforeHorizontal
LineAfterStarts
LineAfterEnds
LineAfterHorizontal

Definition at line 28 of file qtessellator.cpp.

VertexFlags [2/2]

enum VertexFlags

Enumerator
LineBeforeStarts
LineBeforeEnds
LineBeforeHorizontal
LineAfterStarts
LineAfterEnds
LineAfterHorizontal
LineBeforeStarts
LineBeforeEnds
LineBeforeHorizontal
LineAfterStarts
LineAfterEnds
LineAfterHorizontal

Definition at line 28 of file qtessellator.cpp.

Function Documentation

cancelEdges()

void cancelEdges ( QCoincidingEdge & e1, QCoincidingEdge & e2 )

static

Definition at line 671 of file qtessellator.cpp.

References QCoincidingEdge::before, QCoincidingEdge::end, QTessellatorPrivate::Vertex::flags, LineAfterEnds, LineAfterHorizontal, LineAfterStarts, LineBeforeEnds, LineBeforeHorizontal, LineBeforeStarts, QCoincidingEdge::start, and QCoincidingEdge::used.

compareVertex()

bool compareVertex ( const QTessellatorPrivate::Vertex * p1, const QTessellatorPrivate::Vertex * p2 )

inlinestatic

Definition at line 333 of file qtessellator.cpp.

References QTessellator::Vertex::x, and QTessellator::Vertex::y.

Referenced by QTessellatorPrivate::collectAndSortVertices().

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fillTrapezoid()

void fillTrapezoid ( Q27Dot5 y1, Q27Dot5 y2, int left, int right, const QTessellatorPrivate::Vertices & vertices, QTessellator::Trapezoid * trap )

inlinestatic

Definition at line 553 of file qtessellator.cpp.

References QTessellator::Trapezoid::bottom, QTessellator::Trapezoid::bottomLeft, QTessellator::Trapezoid::bottomRight, QTessellatorPrivate::Vertices::next(), QTessellatorPrivate::Vertices::operator[](), QTessellator::Trapezoid::top, QTessellator::Trapezoid::topLeft, QTessellator::Trapezoid::topRight, and QTessellator::Vertex::y.

Referenced by QTessellatorPrivate::emitEdges().

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sameSign()

bool sameSign ( qint64 a, qint64 b )

inlinestatic

Definition at line 245 of file qtessellator.cpp.

Variable Documentation

emit_clever

const bool emit_clever = true

static

Definition at line 25 of file qtessellator.cpp.

mark_clever

const bool mark_clever = false

static

Definition at line 26 of file qtessellator.cpp.

Referenced by QTessellatorPrivate::addEdges().