ftgrays.c File Reference

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

Go to the source code of this file.

Data Structures
struct	TCell
struct	PWorker
struct	PRaster
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 struct TCell_ *	PCell
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)