afhints.h File Reference

#include "aftypes.h"

Go to the source code of this file.

Classes
struct	AF_PointRec_
struct	AF_SegmentRec_
struct	AF_EdgeRec_
struct	AF_AxisHintsRec_
struct	AF_GlyphHintsRec_

Macros
#define	xxAF_SORT_SEGMENTS
#define	AF_HINTS_TEST_SCALER(h, f)   ( (h)->scaler_flags & (f) )
#define	AF_HINTS_TEST_OTHER(h, f)   ( (h)->other_flags & (f) )
#define	AF_HINTS_DO_HORIZONTAL(h)   !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL )
#define	AF_HINTS_DO_VERTICAL(h)   !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_VERTICAL )
#define	AF_HINTS_DO_ADVANCE(h)   !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE )
#define	AF_HINTS_DO_BLUES(h)   1
#define	AF_SEGMENT_LEN(seg)   ( (seg)->max_coord - (seg)->min_coord )
#define	AF_SEGMENT_DIST(seg1, seg2)

Typedefs
typedef FT_BEGIN_HEADER enum AF_Dimension_	AF_Dimension
typedef enum AF_Direction_	AF_Direction
typedef enum AF_Flags_	AF_Flags
typedef enum AF_Edge_Flags_	AF_Edge_Flags
typedef struct AF_PointRec_ *	AF_Point
typedef struct AF_SegmentRec_ *	AF_Segment
typedef struct AF_EdgeRec_ *	AF_Edge
typedef struct AF_PointRec_	AF_PointRec
typedef struct AF_SegmentRec_	AF_SegmentRec
typedef struct AF_EdgeRec_	AF_EdgeRec
typedef struct AF_AxisHintsRec_	AF_AxisHintsRec
typedef struct AF_AxisHintsRec_ *	AF_AxisHints
typedef struct AF_GlyphHintsRec_	AF_GlyphHintsRec

Enumerations
enum	AF_Dimension_ { AF_DIMENSION_HORZ = 0, AF_DIMENSION_VERT = 1, AF_DIMENSION_MAX }
enum	AF_Direction_ {   AF_DIR_NONE = 4, AF_DIR_RIGHT = 1, AF_DIR_LEFT = -1, AF_DIR_UP = 2,   AF_DIR_DOWN = -2 }
enum	AF_Flags_ {   AF_FLAG_NONE = 0, AF_FLAG_CONIC = 1 << 0, AF_FLAG_CUBIC = 1 << 1, AF_FLAG_CONTROL = AF_FLAG_CONIC | AF_FLAG_CUBIC,   AF_FLAG_EXTREMA_X = 1 << 2, AF_FLAG_EXTREMA_Y = 1 << 3, AF_FLAG_ROUND_X = 1 << 4, AF_FLAG_ROUND_Y = 1 << 5,   AF_FLAG_TOUCH_X = 1 << 6, AF_FLAG_TOUCH_Y = 1 << 7, AF_FLAG_WEAK_INTERPOLATION = 1 << 8, AF_FLAG_INFLECTION = 1 << 9 }
enum	AF_Edge_Flags_ { AF_EDGE_NORMAL = 0, AF_EDGE_ROUND = 1 << 0, AF_EDGE_SERIF = 1 << 1, AF_EDGE_DONE = 1 << 2 }

Functions
	af_direction_compute (FT_Pos dx, FT_Pos dy)
	af_axis_hints_new_segment (AF_AxisHints axis, FT_Memory memory, AF_Segment *asegment)
	af_axis_hints_new_edge (AF_AxisHints axis, FT_Int fpos, AF_Direction dir, FT_Memory memory, AF_Edge *edge)
	af_glyph_hints_init (AF_GlyphHints hints, FT_Memory memory)
	af_glyph_hints_rescale (AF_GlyphHints hints, AF_ScriptMetrics metrics)
	af_glyph_hints_reload (AF_GlyphHints hints, FT_Outline *outline)
	af_glyph_hints_save (AF_GlyphHints hints, FT_Outline *outline)
	af_glyph_hints_align_edge_points (AF_GlyphHints hints, AF_Dimension dim)
	af_glyph_hints_align_strong_points (AF_GlyphHints hints, AF_Dimension dim)
	af_glyph_hints_align_weak_points (AF_GlyphHints hints, AF_Dimension dim)
	af_glyph_hints_done (AF_GlyphHints hints)

Macro Definition Documentation

AF_HINTS_DO_ADVANCE

#define AF_HINTS_DO_ADVANCE

(

h

)

!AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE )

Definition at line 389 of file afhints.h.

AF_HINTS_DO_BLUES

#define AF_HINTS_DO_BLUES

(

h

)

1

Definition at line 392 of file afhints.h.

Referenced by af_latin2_hint_edges(), and af_latin_hint_edges().

AF_HINTS_DO_HORIZONTAL

#define AF_HINTS_DO_HORIZONTAL

(

h

)

!AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL )

Definition at line 383 of file afhints.h.

AF_HINTS_DO_VERTICAL

#define AF_HINTS_DO_VERTICAL

(

h

)

!AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_VERTICAL )

Definition at line 386 of file afhints.h.

AF_HINTS_TEST_OTHER

#define AF_HINTS_TEST_OTHER	(		h,
			f
	)		( (h)->other_flags & (f) )

Definition at line 363 of file afhints.h.

AF_HINTS_TEST_SCALER

#define AF_HINTS_TEST_SCALER	(		h,
			f
	)		( (h)->scaler_flags & (f) )

Definition at line 362 of file afhints.h.

AF_SEGMENT_DIST

#define AF_SEGMENT_DIST	(		seg1,
			seg2
	)

Value:

( ( (seg1)->pos > (seg2)->pos )   \
                                           ? (seg1)->pos - (seg2)->pos   \
                                           : (seg2)->pos - (seg1)->pos )

Definition at line 457 of file afhints.h.

AF_SEGMENT_LEN

#define AF_SEGMENT_LEN

(

seg

)

( (seg)->max_coord - (seg)->min_coord )

Definition at line 455 of file afhints.h.

xxAF_SORT_SEGMENTS

#define xxAF_SORT_SEGMENTS

Definition at line 24 of file afhints.h.

Typedef Documentation

AF_AxisHints

typedef struct AF_AxisHintsRec_ * AF_AxisHints

AF_AxisHintsRec

typedef struct AF_AxisHintsRec_ AF_AxisHintsRec

AF_Dimension

typedef FT_BEGIN_HEADER enum AF_Dimension_ AF_Dimension

AF_Direction

typedef enum AF_Direction_ AF_Direction

AF_Edge

typedef struct AF_EdgeRec_* AF_Edge

Definition at line 247 of file afhints.h.

AF_Edge_Flags

typedef enum AF_Edge_Flags_ AF_Edge_Flags

AF_EdgeRec

typedef struct AF_EdgeRec_ AF_EdgeRec

AF_Flags

typedef enum AF_Flags_ AF_Flags

AF_GlyphHintsRec

typedef struct AF_GlyphHintsRec_ AF_GlyphHintsRec

AF_Point

typedef struct AF_PointRec_* AF_Point

Definition at line 245 of file afhints.h.

AF_PointRec

typedef struct AF_PointRec_ AF_PointRec

AF_Segment

typedef struct AF_SegmentRec_* AF_Segment

Definition at line 246 of file afhints.h.

AF_SegmentRec

typedef struct AF_SegmentRec_ AF_SegmentRec

Enumeration Type Documentation

AF_Dimension_

enum AF_Dimension_

Enumerator
AF_DIMENSION_HORZ
AF_DIMENSION_VERT
AF_DIMENSION_MAX

Definition at line 33 of file afhints.h.

AF_Direction_

enum AF_Direction_

Enumerator
AF_DIR_NONE
AF_DIR_RIGHT
AF_DIR_LEFT
AF_DIR_UP
AF_DIR_DOWN

Definition at line 47 of file afhints.h.

AF_Edge_Flags_

enum AF_Edge_Flags_

Enumerator
AF_EDGE_NORMAL
AF_EDGE_ROUND
AF_EDGE_SERIF
AF_EDGE_DONE

Definition at line 235 of file afhints.h.

AF_Flags_

enum AF_Flags_

Enumerator
AF_FLAG_NONE
AF_FLAG_CONIC
AF_FLAG_CUBIC
AF_FLAG_CONTROL
AF_FLAG_EXTREMA_X
AF_FLAG_EXTREMA_Y
AF_FLAG_ROUND_X
AF_FLAG_ROUND_Y
AF_FLAG_TOUCH_X
AF_FLAG_TOUCH_Y
AF_FLAG_WEAK_INTERPOLATION
AF_FLAG_INFLECTION

Definition at line 204 of file afhints.h.

Function Documentation

af_axis_hints_new_edge()

af_axis_hints_new_edge	(	AF_AxisHints	axis,
		FT_Int	fpos,
		AF_Direction	dir,
		FT_Memory	memory,
		AF_Edge *	edge
	)

Definition at line 80 of file afhints.c.

References AF_DIMENSION_HORZ, AF_DIMENSION_VERT, AF_DIR_DOWN, AF_DIR_LEFT, AF_DIR_RIGHT, AF_DIR_UP, AF_EDGE_ROUND, AF_EDGE_SERIF, AF_FLAG_EXTREMA_X, AF_FLAG_EXTREMA_Y, AF_FLAG_INFLECTION, AF_FLAG_ROUND_X, AF_FLAG_ROUND_Y, AF_FLAG_WEAK_INTERPOLATION, af_glyph_hints_dump_edges(), af_glyph_hints_dump_points(), af_glyph_hints_dump_segments(), af_glyph_hints_get_num_segments(), af_glyph_hints_get_segment_offset(), AF_GlyphHintsRec_::axis, AF_EdgeRec_::blue_edge, AF_SegmentRec_::dir, AF_EdgeRec_::dir, AF_SegmentRec_::edge, AF_AxisHintsRec_::edges, error, AF_SegmentRec_::first, AF_PointRec_::flags, AF_SegmentRec_::flags, AF_EdgeRec_::flags, AF_EdgeRec_::fpos, FT_Err_Ok, FT_INT_MAX, ft_memcpy, FT_Pos, FT_RENEW_ARRAY, FT_THROW(), FT_TRACE7, FT_ZERO, AF_PointRec_::fx, AF_PointRec_::fy, AF_SegmentRec_::height, idx, AF_SegmentRec_::last, AF_SegmentRec_::link, AF_EdgeRec_::link, AF_SegmentRec_::max_coord, AF_SegmentRec_::min_coord, NULL, AF_AxisHintsRec_::num_edges, AF_GlyphHintsRec_::num_points, AF_AxisHintsRec_::num_segments, AF_EdgeRec_::opos, AF_PointRec_::ox, AF_PointRec_::oy, AF_GlyphHintsRec_::points, AF_EdgeRec_::pos, AF_AxisHintsRec_::segments, AF_SegmentRec_::serif, AF_EdgeRec_::serif, AF_PointRec_::x, and AF_PointRec_::y.

Referenced by af_latin2_hints_compute_edges(), and af_latin_hints_compute_edges().

af_axis_hints_new_segment()

af_axis_hints_new_segment	(	AF_AxisHints	axis,
		FT_Memory	memory,
		AF_Segment *	asegment
	)

Definition at line 38 of file afhints.c.

References error, FT_Err_Ok, FT_INT_MAX, FT_LOCAL, FT_RENEW_ARRAY, FT_THROW(), and NULL.

Referenced by af_latin2_hints_compute_segments(), and af_latin_hints_compute_segments().

af_direction_compute()

af_direction_compute	(	FT_Pos	dx,
		FT_Pos	dy
	)

Definition at line 481 of file afhints.c.

References AF_DIR_DOWN, AF_DIR_LEFT, AF_DIR_NONE, AF_DIR_RIGHT, AF_DIR_UP, FT_ABS, FT_LOCAL_DEF, and FT_Pos.

Referenced by af_glyph_hints_reload().

af_glyph_hints_align_edge_points()

af_glyph_hints_align_edge_points	(	AF_GlyphHints	hints,
		AF_Dimension	dim
	)

Definition at line 836 of file afhints.c.

References AF_DIMENSION_HORZ, AF_FLAG_TOUCH_X, AF_FLAG_TOUCH_Y, AF_SegmentRec_::edge, AF_SegmentRec_::first, AF_PointRec_::flags, FT_LOCAL_DEF, AF_SegmentRec_::last, AF_PointRec_::next, NULL, AF_AxisHintsRec_::num_segments, AF_EdgeRec_::pos, AF_AxisHintsRec_::segments, AF_PointRec_::x, and AF_PointRec_::y.

af_glyph_hints_align_strong_points()

af_glyph_hints_align_strong_points	(	AF_GlyphHints	hints,
		AF_Dimension	dim
	)

Definition at line 911 of file afhints.c.

References AF_DIMENSION_HORZ, AF_DIMENSION_VERT, AF_FLAG_INFLECTION, AF_FLAG_TOUCH_X, AF_FLAG_TOUCH_Y, AF_FLAG_WEAK_INTERPOLATION, AF_AxisHintsRec_::edges, AF_PointRec_::flags, AF_EdgeRec_::fpos, FT_DivFix(), FT_MulFix(), FT_Pos, AF_PointRec_::fx, AF_PointRec_::fy, max, vl::min(), AF_AxisHintsRec_::num_edges, AF_EdgeRec_::opos, AF_PointRec_::ox, AF_PointRec_::oy, AF_EdgeRec_::pos, AF_EdgeRec_::scale, AF_PointRec_::x, and AF_PointRec_::y.

af_glyph_hints_align_weak_points()

af_glyph_hints_align_weak_points	(	AF_GlyphHints	hints,
		AF_Dimension	dim
	)

Definition at line 1166 of file afhints.c.

References AF_DIMENSION_HORZ, AF_FLAG_TOUCH_X, AF_FLAG_TOUCH_Y, AF_PointRec_::flags, FT_ASSERT, AF_PointRec_::ox, AF_PointRec_::oy, AF_PointRec_::prev, AF_PointRec_::u, AF_PointRec_::v, AF_PointRec_::x, and AF_PointRec_::y.

af_glyph_hints_done()

af_glyph_hints_done

(

AF_GlyphHints

hints

)

Definition at line 539 of file afhints.c.

References AF_DIMENSION_MAX, AF_AxisHintsRec_::edges, FT_FREE, FT_LOCAL_DEF, AF_AxisHintsRec_::max_edges, AF_AxisHintsRec_::max_segments, NULL, AF_AxisHintsRec_::num_edges, AF_AxisHintsRec_::num_segments, and AF_AxisHintsRec_::segments.

Referenced by af_latin2_metrics_init_widths(), af_latin_metrics_init_widths(), and af_loader_done().

af_glyph_hints_init()

af_glyph_hints_init	(	AF_GlyphHints	hints,
		FT_Memory	memory
	)

Definition at line 530 of file afhints.c.

References FT_LOCAL_DEF, and FT_ZERO.

Referenced by af_latin2_metrics_init_widths(), af_latin_metrics_init_widths(), and af_loader_init().

af_glyph_hints_reload()

af_glyph_hints_reload	(	AF_GlyphHints	hints,
		FT_Outline *	outline
	)

Definition at line 593 of file afhints.c.

References AF_DIMENSION_HORZ, AF_DIMENSION_VERT, AF_DIR_DOWN, AF_DIR_LEFT, AF_DIR_NONE, AF_DIR_RIGHT, AF_DIR_UP, af_direction_compute(), AF_FLAG_CONIC, AF_FLAG_CONTROL, AF_FLAG_CUBIC, AF_FLAG_NONE, AF_FLAG_WEAK_INTERPOLATION, error, AF_PointRec_::flags, ft_corner_is_flat(), FT_CURVE_TAG, FT_CURVE_TAG_CONIC, FT_CURVE_TAG_CUBIC, FT_Err_Ok, FT_LOCAL_DEF, FT_MulFix(), FT_ORIENTATION_POSTSCRIPT, FT_Outline_Get_Orientation(), FT_Pos, FT_RENEW_ARRAY, AF_PointRec_::fx, AF_PointRec_::fy, idx, if(), AF_PointRec_::in_dir, AF_PointRec_::next, NULL, AF_PointRec_::out_dir, AF_PointRec_::ox, AF_PointRec_::oy, AF_PointRec_::prev, vec, AF_PointRec_::x, and AF_PointRec_::y.

Referenced by af_latin2_metrics_init_widths(), and af_latin_metrics_init_widths().

af_glyph_hints_rescale()

af_glyph_hints_rescale	(	AF_GlyphHints	hints,
		AF_ScriptMetrics	metrics
	)

Definition at line 581 of file afhints.c.

References FT_LOCAL_DEF.

Referenced by af_latin2_metrics_init_widths(), and af_latin_metrics_init_widths().

af_glyph_hints_save()

af_glyph_hints_save	(	AF_GlyphHints	hints,
		FT_Outline *	outline
	)

Definition at line 801 of file afhints.c.

References AF_FLAG_CONIC, AF_FLAG_CUBIC, AF_PointRec_::flags, FT_CURVE_TAG_CONIC, FT_CURVE_TAG_CUBIC, FT_CURVE_TAG_ON, FT_LOCAL_DEF, vec, FT_Vector_::x, AF_PointRec_::x, FT_Vector_::y, and AF_PointRec_::y.