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ftgrays.c File Reference

#include <ft2build.h>
#include "ftgrays.h"
#include "ftsmerrs.h"
#include "ftspic.h"

Go to the source code of this file.

Classes

struct TCell_

struct TWorker_

struct TRaster_

struct TBand_

Defines

#define FT_COMPONENT   trace_smooth

#define ErrRaster_Invalid_Mode   Smooth_Err_Cannot_Render_Glyph

#define ErrRaster_Invalid_Outline   Smooth_Err_Invalid_Outline

#define ErrRaster_Memory_Overflow   Smooth_Err_Out_Of_Memory

#define ErrRaster_Invalid_Argument   Smooth_Err_Invalid_Argument

#define FT_MEM_SET(d, s, c)   ft_memset( d, s, c )

#define FT_MEM_ZERO(dest, count)   FT_MEM_SET( dest, 0, count )

#define RAS_ARG   PWorker worker

#define RAS_ARG_   PWorker worker,

#define RAS_VAR   worker

#define RAS_VAR_   worker,

#define PIXEL_BITS   8

#define ONE_PIXEL   ( 1L << PIXEL_BITS )

#define PIXEL_MASK   ( -1L << PIXEL_BITS )

#define TRUNC(x)   ( (TCoord)( (x) >> PIXEL_BITS ) )

#define SUBPIXELS(x)   ( (TPos)(x) << PIXEL_BITS )

#define FLOOR(x)   ( (x) & -ONE_PIXEL )

#define CEILING(x)   ( ( (x) + ONE_PIXEL - 1 ) & -ONE_PIXEL )

#define ROUND(x)   ( ( (x) + ONE_PIXEL / 2 ) & -ONE_PIXEL )

#define UPSCALE(x)   ( (x) << ( PIXEL_BITS - 6 ) )

#define DOWNSCALE(x)   ( (x) >> ( PIXEL_BITS - 6 ) )

#define FT_MAX_GRAY_SPANS   32

#define ras   (*worker)

Typedefs

typedef long TCoord

typedef long TPos

typedef int TArea

typedef TCell_ * PCell

typedef TCell_ TCell

typedef TWorker_ TWorker

typedef TWorker_ * PWorker

typedef TRaster_ TRaster

typedef TRaster_ * PRaster

typedef TBand_ TBand

Functions

static void gray_init_cells (RAS_ARG_ void *buffer, long byte_size)

static void gray_compute_cbox (RAS_ARG)

static PCell gray_find_cell (RAS_ARG)

static void gray_record_cell (RAS_ARG)

static void gray_set_cell (RAS_ARG_ TCoord ex, TCoord ey)

static void gray_start_cell (RAS_ARG_ TCoord ex, TCoord ey)

static void gray_render_scanline (RAS_ARG_ TCoord ey, TPos x1, TCoord y1, TPos x2, TCoord y2)

static void gray_render_line (RAS_ARG_ TPos to_x, TPos to_y)

static void gray_split_conic (FT_Vector *base)

static void gray_render_conic (RAS_ARG_ const FT_Vector *control, const FT_Vector *to)

static void gray_split_cubic (FT_Vector *base)

static void gray_render_cubic (RAS_ARG_ const FT_Vector *control1, const FT_Vector *control2, const FT_Vector *to)

static int gray_move_to (const FT_Vector *to, PWorker worker)

static int gray_line_to (const FT_Vector *to, PWorker worker)

static int gray_conic_to (const FT_Vector *control, const FT_Vector *to, PWorker worker)

static int gray_cubic_to (const FT_Vector *control1, const FT_Vector *control2, const FT_Vector *to, PWorker worker)

static void gray_render_span (int y, int count, const FT_Span *spans, PWorker worker)

static void gray_hline (RAS_ARG_ TCoord x, TCoord y, TPos area, TCoord acount)

static void gray_sweep (RAS_ARG_ const FT_Bitmap *target)

FT_DEFINE_OUTLINE_FUNCS (func_interface,(FT_Outline_MoveTo_Func) gray_move_to,(FT_Outline_LineTo_Func) gray_line_to,(FT_Outline_ConicTo_Func) gray_conic_to,(FT_Outline_CubicTo_Func) gray_cubic_to, 0, 0) static int gray_convert_glyph_inner(RAS_ARG)

static int gray_convert_glyph (RAS_ARG)

static int gray_raster_render (PRaster raster, const FT_Raster_Params *params)

static int gray_raster_new (FT_Memory memory, FT_Raster *araster)

static void gray_raster_done (FT_Raster raster)

static void gray_raster_reset (FT_Raster raster, char *pool_base, long pool_size)

Define Documentation

#define CEILING ( x ) ( ( (x) + ONE_PIXEL - 1 ) & -ONE_PIXEL )

Definition at line 257 of file ftgrays.c.

#define DOWNSCALE ( x ) ( (x) >> ( PIXEL_BITS - 6 ) )

Definition at line 262 of file ftgrays.c.

Referenced by gray_render_conic(), and gray_render_cubic().

#define ErrRaster_Invalid_Argument Smooth_Err_Invalid_Argument

Definition at line 217 of file ftgrays.c.

Referenced by gray_raster_render().

#define ErrRaster_Invalid_Mode Smooth_Err_Cannot_Render_Glyph

Definition at line 214 of file ftgrays.c.

Referenced by gray_raster_render().

#define ErrRaster_Invalid_Outline Smooth_Err_Invalid_Outline

Definition at line 215 of file ftgrays.c.

Referenced by gray_raster_render().

#define ErrRaster_Memory_Overflow Smooth_Err_Out_Of_Memory

Definition at line 216 of file ftgrays.c.

Referenced by FT_DEFINE_OUTLINE_FUNCS(), and gray_convert_glyph().

#define FLOOR ( x ) ( (x) & -ONE_PIXEL )

Definition at line 256 of file ftgrays.c.

#define FT_COMPONENT trace_smooth

Definition at line 91 of file ftgrays.c.

#define FT_MAX_GRAY_SPANS 32

Definition at line 302 of file ftgrays.c.

Referenced by gray_hline().

#define FT_MEM_SET	(	d,
		s,
		c	)	ft_memset( d, s, c )

Definition at line 222 of file ftgrays.c.

#define FT_MEM_ZERO	(	dest,
		count		)	FT_MEM_SET( dest, 0, count )

Definition at line 226 of file ftgrays.c.

#define ONE_PIXEL ( 1L << PIXEL_BITS )

Definition at line 252 of file ftgrays.c.

Referenced by gray_render_line(), gray_render_scanline(), and gray_sweep().

#define PIXEL_BITS 8

Definition at line 250 of file ftgrays.c.

Referenced by gray_hline().

#define PIXEL_MASK ( -1L << PIXEL_BITS )

Definition at line 253 of file ftgrays.c.

#define ras (*worker)

Definition at line 368 of file ftgrays.c.

#define RAS_ARG PWorker worker

Definition at line 233 of file ftgrays.c.

#define RAS_ARG_ PWorker worker,

Definition at line 234 of file ftgrays.c.

#define RAS_VAR worker

Definition at line 236 of file ftgrays.c.

#define RAS_VAR_ worker,

Definition at line 237 of file ftgrays.c.

Referenced by gray_conic_to(), gray_convert_glyph(), gray_cubic_to(), gray_line_to(), gray_move_to(), gray_raster_render(), gray_render_conic(), gray_render_cubic(), gray_render_line(), gray_render_scanline(), gray_start_cell(), and gray_sweep().

#define ROUND ( x ) ( ( (x) + ONE_PIXEL / 2 ) & -ONE_PIXEL )

Definition at line 258 of file ftgrays.c.

#define SUBPIXELS ( x ) ( (TPos)(x) << PIXEL_BITS )

Definition at line 255 of file ftgrays.c.

Referenced by gray_render_line(), gray_render_scanline(), and gray_start_cell().

#define TRUNC ( x ) ( (TCoord)( (x) >> PIXEL_BITS ) )

Definition at line 254 of file ftgrays.c.

#define UPSCALE ( x ) ( (x) << ( PIXEL_BITS - 6 ) )

Definition at line 261 of file ftgrays.c.

Referenced by gray_line_to(), gray_move_to(), gray_render_conic(), and gray_render_cubic().

Typedef Documentation

typedef struct TCell_* PCell

Definition at line 305 of file ftgrays.c.

typedef struct TRaster_ * PRaster

typedef struct TWorker_ * PWorker

typedef int TArea

Definition at line 295 of file ftgrays.c.

typedef struct TBand_ TBand

typedef struct TCell_ TCell

typedef long TCoord

Definition at line 278 of file ftgrays.c.

typedef long TPos

Definition at line 279 of file ftgrays.c.

typedef struct TRaster_ TRaster

typedef struct TWorker_ TWorker

Function Documentation

FT_DEFINE_OUTLINE_FUNCS	(	func_interface	,
		(FT_Outline_MoveTo_Func)	gray_move_to,
		(FT_Outline_LineTo_Func)	gray_line_to,
		(FT_Outline_ConicTo_Func)	gray_conic_to,
		(FT_Outline_CubicTo_Func)	gray_cubic_to,
		0	,
		0
	)

Definition at line 1701 of file ftgrays.c.

References ErrRaster_Memory_Overflow, FT_Outline_Decompose(), ft_setjmp, gray_record_cell(), ras, and RAS_VAR.

static void gray_compute_cbox ( RAS_ARG ) [static]

Definition at line 412 of file ftgrays.c.

References if(), FT_Outline_::n_points, FT_Outline_::points, ras, FT_Vector_::x, x, FT_Vector_::y, and y.

Referenced by gray_convert_glyph().

static int gray_conic_to	(	const FT_Vector *	control,
		const FT_Vector *	to,
		PWorker	worker
	)			`[static]`

Definition at line 1159 of file ftgrays.c.

References gray_render_conic(), and RAS_VAR_.

static int gray_convert_glyph ( RAS_ARG ) [static]

Definition at line 1734 of file ftgrays.c.

References clip(), ErrRaster_Memory_Overflow, for(), FT_TRACE7, gray_compute_cbox(), gray_sweep(), if(), int, level, max, TBand_::max, TBand_::min, min, NULL, ras, RAS_VAR, RAS_VAR_, sizeof(), and top().

Referenced by gray_raster_render().

static int gray_cubic_to	(	const FT_Vector *	control1,
		const FT_Vector *	control2,
		const FT_Vector *	to,
		PWorker	worker
	)			`[static]`

Definition at line 1169 of file ftgrays.c.

References gray_render_cubic(), and RAS_VAR_.

static PCell gray_find_cell ( RAS_ARG ) [static]

Definition at line 456 of file ftgrays.c.

References TCell_::area, TCell_::cover, ft_longjmp, if(), TCell_::next, NULL, ras, TCell_::x, and x.

Referenced by gray_record_cell().

static void gray_hline	(	RAS_ARG_ TCoord	x,
		TCoord	y,
		TPos	area,
		TCoord	acount
	)			`[static]`

Definition at line 1231 of file ftgrays.c.

References FT_INT_MAX, FT_MAX_GRAY_SPANS, FT_OUTLINE_EVEN_ODD_FILL, FT_TRACE7, int, n, PIXEL_BITS, ras, and short.

Referenced by gray_sweep().

static void gray_init_cells	(	RAS_ARG_ void *	buffer,
		long	byte_size
	)			`[static]`

Definition at line 391 of file ftgrays.c.

References NULL, and ras.

Referenced by gray_raster_render().

static int gray_line_to	(	const FT_Vector *	to,
		PWorker	worker
	)			`[static]`

Definition at line 1150 of file ftgrays.c.

References gray_render_line(), RAS_VAR_, UPSCALE, FT_Vector_::x, and FT_Vector_::y.

static int gray_move_to	(	const FT_Vector *	to,
		PWorker	worker
	)			`[static]`

Definition at line 1128 of file ftgrays.c.

References gray_record_cell(), gray_start_cell(), RAS_VAR, RAS_VAR_, TRUNC, UPSCALE, FT_Vector_::x, TWorker_::x, x, FT_Vector_::y, TWorker_::y, and y.

static void gray_raster_done ( FT_Raster raster ) [static]

Definition at line 2028 of file ftgrays.c.

References FT_FREE.

static int gray_raster_new	(	FT_Memory	memory,
		FT_Raster *	araster
	)			`[static]`

Definition at line 2009 of file ftgrays.c.

References FT_ALLOC, and TRaster_::memory.

static int gray_raster_render	(	PRaster	raster,
		const FT_Raster_Params *	params
	)			`[static]`

static void gray_raster_reset	(	FT_Raster	raster,
		char *	pool_base,
		long	pool_size
	)			`[static]`

Definition at line 2040 of file ftgrays.c.

References TRaster_::band_size, TRaster_::buffer, TRaster_::buffer_size, int, long, NULL, sizeof(), and TRaster_::worker.

static void gray_record_cell ( RAS_ARG ) [static]

Definition at line 495 of file ftgrays.c.

References TCell_::area, TCell_::cover, gray_find_cell(), ras, and RAS_VAR.

Referenced by FT_DEFINE_OUTLINE_FUNCS(), gray_move_to(), and gray_set_cell().

static void gray_render_conic	(	RAS_ARG_ const FT_Vector *	control,
		const FT_Vector *	to
	)			`[static]`

Definition at line 869 of file ftgrays.c.

References DOWNSCALE, Draw(), gray_render_line(), gray_split_conic(), level, max, min, ras, RAS_VAR_, top(), TRUNC, UPSCALE, FT_Vector_::x, FT_Vector_::y, and y.

Referenced by gray_conic_to().

static void gray_render_cubic	(	RAS_ARG_ const FT_Vector *	control1,
		const FT_Vector *	control2,
		const FT_Vector *	to
	)			`[static]`

Definition at line 1006 of file ftgrays.c.

References DOWNSCALE, Draw(), gray_render_line(), gray_split_cubic(), level, max, min, ras, RAS_VAR_, top(), TRUNC, UPSCALE, FT_Vector_::x, FT_Vector_::y, and y.

Referenced by gray_cubic_to().

static void gray_render_line	(	RAS_ARG_ TPos	to_x,
		TPos	to_y
	)			`[static]`

Definition at line 692 of file ftgrays.c.

References Rgl::Pad::End(), gray_render_scanline(), gray_set_cell(), int, max, min, ONE_PIXEL, p, ras, RAS_VAR_, SUBPIXELS, TRUNC, x, and x2.

Referenced by gray_line_to(), gray_render_conic(), and gray_render_cubic().

static void gray_render_scanline	(	RAS_ARG_ TCoord	ey,
		TPos	x1,
		TCoord	y1,
		TPos	x2,
		TCoord	y2
	)			`[static]`

Definition at line 585 of file ftgrays.c.

References gray_set_cell(), int, ONE_PIXEL, p, ras, RAS_VAR_, SUBPIXELS, and TRUNC.

Referenced by gray_render_line().

static void gray_render_span	(	int	y,
		int	count,
		const FT_Span *	spans,
		PWorker	worker
	)			`[static]`

Definition at line 1180 of file ftgrays.c.

References FT_Bitmap_::buffer, FT_Span_::coverage, for(), FT_MEM_SET, if(), FT_Span_::len, p, FT_Bitmap_::pitch, FT_Bitmap_::rows, TWorker_::target, and FT_Span_::x.

Referenced by gray_raster_render().

static void gray_set_cell	(	RAS_ARG_ TCoord	ex,
		TCoord	ey
	)			`[static]`

Definition at line 513 of file ftgrays.c.

References gray_record_cell(), ras, and RAS_VAR.

Referenced by gray_render_line(), gray_render_scanline(), and gray_start_cell().

static void gray_split_conic ( FT_Vector * base ) [static]

Definition at line 849 of file ftgrays.c.

References a, b, FT_Vector_::x, and FT_Vector_::y.

Referenced by gray_render_conic().

static void gray_split_cubic ( FT_Vector * base ) [static]

Definition at line 978 of file ftgrays.c.

References a, b, c, d, FT_Vector_::x, and FT_Vector_::y.

Referenced by gray_render_cubic().

static void gray_start_cell	(	RAS_ARG_ TCoord	ex,
		TCoord	ey
	)			`[static]`

Definition at line 560 of file ftgrays.c.

References gray_set_cell(), ras, RAS_VAR_, and SUBPIXELS.

Referenced by gray_move_to().

static void gray_sweep ( RAS_ARG_ const FT_Bitmap * target ) [static]

Definition at line 1361 of file ftgrays.c.

References for(), FT_TRACE7, FT_UNUSED, gray_hline(), if(), NULL, ONE_PIXEL, ras, RAS_VAR_, and x.

Referenced by gray_convert_glyph().

Generated on Tue Jul 5 15:58:26 2011 for ROOT_528-00b_version by

1.5.1


Classes
struct	TCell_
struct	TWorker_
struct	TRaster_
struct	TBand_
Defines
#define	FT_COMPONENT trace_smooth
#define	ErrRaster_Invalid_Mode Smooth_Err_Cannot_Render_Glyph
#define	ErrRaster_Invalid_Outline Smooth_Err_Invalid_Outline
#define	ErrRaster_Memory_Overflow Smooth_Err_Out_Of_Memory
#define	ErrRaster_Invalid_Argument Smooth_Err_Invalid_Argument
#define	FT_MEM_SET(d, s, c) ft_memset( d, s, c )
#define	FT_MEM_ZERO(dest, count) FT_MEM_SET( dest, 0, count )
#define	RAS_ARG PWorker worker
#define	RAS_ARG_ PWorker worker,
#define	RAS_VAR worker
#define	RAS_VAR_ worker,
#define	PIXEL_BITS 8
#define	ONE_PIXEL ( 1L << PIXEL_BITS )
#define	PIXEL_MASK ( -1L << PIXEL_BITS )
#define	TRUNC(x) ( (TCoord)( (x) >> PIXEL_BITS ) )
#define	SUBPIXELS(x) ( (TPos)(x) << PIXEL_BITS )
#define	FLOOR(x) ( (x) & -ONE_PIXEL )
#define	CEILING(x) ( ( (x) + ONE_PIXEL - 1 ) & -ONE_PIXEL )
#define	ROUND(x) ( ( (x) + ONE_PIXEL / 2 ) & -ONE_PIXEL )
#define	UPSCALE(x) ( (x) << ( PIXEL_BITS - 6 ) )
#define	DOWNSCALE(x) ( (x) >> ( PIXEL_BITS - 6 ) )
#define	FT_MAX_GRAY_SPANS 32
#define	ras (*worker)
Typedefs
typedef long	TCoord
typedef long	TPos
typedef int	TArea
typedef TCell_ *	PCell
typedef TCell_	TCell
typedef TWorker_	TWorker
typedef TWorker_ *	PWorker
typedef TRaster_	TRaster
typedef TRaster_ *	PRaster
typedef TBand_	TBand
Functions
static void	gray_init_cells (RAS_ARG_ void *buffer, long byte_size)
static void	gray_compute_cbox (RAS_ARG)
static PCell	gray_find_cell (RAS_ARG)
static void	gray_record_cell (RAS_ARG)
static void	gray_set_cell (RAS_ARG_ TCoord ex, TCoord ey)
static void	gray_start_cell (RAS_ARG_ TCoord ex, TCoord ey)
static void	gray_render_scanline (RAS_ARG_ TCoord ey, TPos x1, TCoord y1, TPos x2, TCoord y2)
static void	gray_render_line (RAS_ARG_ TPos to_x, TPos to_y)
static void	gray_split_conic (FT_Vector *base)
static void	gray_render_conic (RAS_ARG_ const FT_Vector control, const FT_Vector to)
static void	gray_split_cubic (FT_Vector *base)
static void	gray_render_cubic (RAS_ARG_ const FT_Vector control1, const FT_Vector control2, const FT_Vector *to)
static int	gray_move_to (const FT_Vector *to, PWorker worker)
static int	gray_line_to (const FT_Vector *to, PWorker worker)
static int	gray_conic_to (const FT_Vector control, const FT_Vector to, PWorker worker)
static int	gray_cubic_to (const FT_Vector control1, const FT_Vector control2, const FT_Vector *to, PWorker worker)
static void	gray_render_span (int y, int count, const FT_Span *spans, PWorker worker)
static void	gray_hline (RAS_ARG_ TCoord x, TCoord y, TPos area, TCoord acount)
static void	gray_sweep (RAS_ARG_ const FT_Bitmap *target)
	FT_DEFINE_OUTLINE_FUNCS (func_interface,(FT_Outline_MoveTo_Func) gray_move_to,(FT_Outline_LineTo_Func) gray_line_to,(FT_Outline_ConicTo_Func) gray_conic_to,(FT_Outline_CubicTo_Func) gray_cubic_to, 0, 0) static int gray_convert_glyph_inner(RAS_ARG)
static int	gray_convert_glyph (RAS_ARG)
static int	gray_raster_render (PRaster raster, const FT_Raster_Params *params)
static int	gray_raster_new (FT_Memory memory, FT_Raster *araster)
static void	gray_raster_done (FT_Raster raster)
static void	gray_raster_reset (FT_Raster raster, char *pool_base, long pool_size)