ftbbox.c File Reference

#include <ft2build.h>

Go to the source code of this file.

Classes
struct	TBBox_Rec_
Defines
#define	CHECK_X(p, bbox)   ( p->x < bbox.xMin || p->x > bbox.xMax )
#define	CHECK_Y(p, bbox)   ( p->y < bbox.yMin || p->y > bbox.yMax )
Typedefs
typedef TBBox_Rec_	TBBox_Rec
Functions
static int	BBox_Move_To (FT_Vector *to, TBBox_Rec *user)
static void	BBox_Conic_Check (FT_Pos y1, FT_Pos y2, FT_Pos y3, FT_Pos *min, FT_Pos *max)
static int	BBox_Conic_To (FT_Vector *control, FT_Vector *to, TBBox_Rec *user)
static void	test_cubic_extrema (FT_Pos y1, FT_Pos y2, FT_Pos y3, FT_Pos y4, FT_Fixed u, FT_Pos *min, FT_Pos *max)
static void	BBox_Cubic_Check (FT_Pos y1, FT_Pos y2, FT_Pos y3, FT_Pos y4, FT_Pos *min, FT_Pos *max)
static int	BBox_Cubic_To (FT_Vector *control1, FT_Vector *control2, FT_Vector *to, TBBox_Rec *user)
	FT_DEFINE_OUTLINE_FUNCS (bbox_interface,(FT_Outline_MoveTo_Func) BBox_Move_To,(FT_Outline_LineTo_Func) BBox_Move_To,(FT_Outline_ConicTo_Func) BBox_Conic_To,(FT_Outline_CubicTo_Func) BBox_Cubic_To, 0, 0) FT_Outline_Get_BBox(FT_Outline *outline

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Define Documentation

#define CHECK_X	(	p,
		bbox		)	( p->x < bbox.xMin || p->x > bbox.xMax )

Definition at line 73 of file ftbbox.c.

Referenced by BBox_Conic_To(), and BBox_Cubic_To().

#define CHECK_Y	(	p,
		bbox		)	( p->y < bbox.yMin || p->y > bbox.yMax )

Definition at line 76 of file ftbbox.c.

Referenced by BBox_Conic_To(), and BBox_Cubic_To().

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Typedef Documentation

typedef struct TBBox_Rec_ TBBox_Rec

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Function Documentation

static void BBox_Conic_Check	(	FT_Pos	y1,
		FT_Pos	y2,
		FT_Pos	y3,
		FT_Pos *	min,
		FT_Pos *	max
	)			[static]

Definition at line 103 of file ftbbox.c.

References FT_MulDiv().

Referenced by BBox_Conic_To().

static int BBox_Conic_To	(	FT_Vector *	control,
		FT_Vector *	to,
		TBBox_Rec *	user
	)			[static]

Definition at line 163 of file ftbbox.c.

References TBBox_Rec_::bbox, BBox_Conic_Check(), CHECK_X, CHECK_Y, TBBox_Rec_::last, FT_Vector_::x, FT_BBox_::xMax, FT_BBox_::xMin, FT_Vector_::y, FT_BBox_::yMax, and FT_BBox_::yMin.

static void BBox_Cubic_Check	(	FT_Pos	y1,
		FT_Pos	y2,
		FT_Pos	y3,
		FT_Pos	y4,
		FT_Pos *	min,
		FT_Pos *	max
	)			[static]

Definition at line 333 of file ftbbox.c.

References a, b, c, d, FT_DivFix(), FT_MulFix(), FT_Pos, FT_SqrtFixed(), t, and test_cubic_extrema().

Referenced by BBox_Cubic_To().

static int BBox_Cubic_To	(	FT_Vector *	control1,
		FT_Vector *	control2,
		FT_Vector *	to,
		TBBox_Rec *	user
	)			[static]

Definition at line 532 of file ftbbox.c.

References TBBox_Rec_::bbox, BBox_Cubic_Check(), CHECK_X, CHECK_Y, TBBox_Rec_::last, FT_Vector_::x, FT_BBox_::xMax, FT_BBox_::xMin, FT_Vector_::y, FT_BBox_::yMax, and FT_BBox_::yMin.

static int BBox_Move_To	(	FT_Vector *	to,
		TBBox_Rec *	user
	)			[static]

Definition at line 64 of file ftbbox.c.

References TBBox_Rec_::last.

FT_DEFINE_OUTLINE_FUNCS	(	bbox_interface	,
		(FT_Outline_MoveTo_Func)	BBox_Move_To,
		(FT_Outline_LineTo_Func)	BBox_Move_To,
		(FT_Outline_ConicTo_Func)	BBox_Conic_To,
		(FT_Outline_CubicTo_Func)	BBox_Cubic_To,
		0	,
		0
	)

static void test_cubic_extrema	(	FT_Pos	y1,
		FT_Pos	y2,
		FT_Pos	y3,
		FT_Pos	y4,
		FT_Fixed	u,
		FT_Pos *	min,
		FT_Pos *	max
	)			[static]

Definition at line 289 of file ftbbox.c.

References b, c, d, FT_MulFix(), FT_Pos, FT_UNUSED, x10000L, and y.

Referenced by BBox_Cubic_Check().

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