ftraster.c File Reference

#include <ft2build.h>
#include "ftraster.h"
#include "rastpic.h"
#include "rasterrs.h"

Go to the source code of this file.

Data Structures
union	PAlignment
struct	TPoint
struct	TProfile
struct	TBand
struct	PWorker
struct	PRaster
Defines
#define	RASTER_GRAY_LINES   2048
#define	FT_COMPONENT   trace_raster
#define	Raster_Err_None   Raster_Err_Ok
#define	Raster_Err_Not_Ini   Raster_Err_Raster_Uninitialized
#define	Raster_Err_Overflow   Raster_Err_Raster_Overflow
#define	Raster_Err_Neg_Height   Raster_Err_Raster_Negative_Height
#define	Raster_Err_Invalid   Raster_Err_Invalid_Outline
#define	Raster_Err_Unsupported   Raster_Err_Cannot_Render_Glyph
#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	FMulDiv(a, b, c)   ( (a) * (b) / (c) )
#define	SMulDiv   FT_MulDiv
#define	TRUE   1
#define	FALSE   0
#define	NULL   (void*)0
#define	SUCCESS   0
#define	FAILURE   1
#define	MaxBezier   32 /* The maximum number of stacked Bezier curves. */
#define	Pixel_Bits   6 /* fractional bits of *input* coordinates */
#define	Flow_Up   0x8
#define	Overshoot_Top   0x10
#define	Overshoot_Bottom   0x20
#define	AlignProfileSize   ( ( sizeof ( TProfile ) + sizeof ( Alignment ) - 1 ) / sizeof ( long ) )
#define	RAS_ARGS   PWorker worker,
#define	RAS_ARG   PWorker worker
#define	RAS_VARS   worker,
#define	RAS_VAR   worker
#define	FT_UNUSED_RASTER   FT_UNUSED( worker )
#define	FLOOR(x)   ( (x) & -ras.precision )
#define	CEILING(x)   ( ( (x) + ras.precision - 1 ) & -ras.precision )
#define	TRUNC(x)   ( (signed long)(x) >> ras.precision_bits )
#define	FRAC(x)   ( (x) & ( ras.precision - 1 ) )
#define	SCALED(x)   ( ( (x) << ras.scale_shift ) - ras.precision_half )
#define	IS_BOTTOM_OVERSHOOT(x)   ( CEILING( x ) - x >= ras.precision_half )
#define	IS_TOP_OVERSHOOT(x)   ( x - FLOOR( x ) >= ras.precision_half )
#define	ras   (*worker)
#define	SWAP_(x, y)
Typedefs
typedef int	Int
typedef unsigned int	UInt
typedef short	Short
typedef unsigned short	UShort
typedef unsigned short *	PUShort
typedef long	Long
typedef long *	PLong
typedef unsigned char	Byte
typedef unsigned char *	PByte
typedef char	Bool
typedef TProfile *	PProfile
typedef PProfile	TProfileList
typedef PProfile *	PProfileList
typedef void	Function_Sweep_Init (RAS_ARGS Short *min, Short *max)
typedef void	Function_Sweep_Span (RAS_ARGS Short y, FT_F26Dot6 x1, FT_F26Dot6 x2, PProfile left, PProfile right)
typedef void	Function_Sweep_Step (RAS_ARG)
typedef void(*	TSplitter )(TPoint *base)
Enumerations
enum	TStates { Unknown_State, Ascending_State, Descending_State, Flat_State }
Functions
static void	Set_High_Precision (RAS_ARGS Int High)
static Bool	New_Profile (RAS_ARGS TStates aState, Bool overshoot)
static Bool	End_Profile (RAS_ARGS Bool overshoot)
static Bool	Insert_Y_Turn (RAS_ARGS Int y)
static Bool	Finalize_Profile_Table (RAS_ARG)
static void	Split_Conic (TPoint *base)
static void	Split_Cubic (TPoint *base)
static Bool	Line_Up (RAS_ARGS Long x1, Long y1, Long x2, Long y2, Long miny, Long maxy)
static Bool	Line_Down (RAS_ARGS Long x1, Long y1, Long x2, Long y2, Long miny, Long maxy)
static Bool	Bezier_Up (RAS_ARGS Int degree, TSplitter splitter, Long miny, Long maxy)
static Bool	Bezier_Down (RAS_ARGS Int degree, TSplitter splitter, Long miny, Long maxy)
static Bool	Line_To (RAS_ARGS Long x, Long y)
static Bool	Conic_To (RAS_ARGS Long cx, Long cy, Long x, Long y)
static Bool	Cubic_To (RAS_ARGS Long cx1, Long cy1, Long cx2, Long cy2, Long x, Long y)
static Bool	Decompose_Curve (RAS_ARGS UShort first, UShort last, int flipped)
static Bool	Convert_Glyph (RAS_ARGS int flipped)
static void	Init_Linked (TProfileList *l)
static void	InsNew (PProfileList list, PProfile profile)
static void	DelOld (PProfileList list, PProfile profile)
static void	Sort (PProfileList list)
static void	Vertical_Sweep_Init (RAS_ARGS Short *min, Short *max)
static void	Vertical_Sweep_Span (RAS_ARGS Short y, FT_F26Dot6 x1, FT_F26Dot6 x2, PProfile left, PProfile right)
static void	Vertical_Sweep_Drop (RAS_ARGS Short y, FT_F26Dot6 x1, FT_F26Dot6 x2, PProfile left, PProfile right)
static void	Vertical_Sweep_Step (RAS_ARG)
static void	Horizontal_Sweep_Init (RAS_ARGS Short *min, Short *max)
static void	Horizontal_Sweep_Span (RAS_ARGS Short y, FT_F26Dot6 x1, FT_F26Dot6 x2, PProfile left, PProfile right)
static void	Horizontal_Sweep_Drop (RAS_ARGS Short y, FT_F26Dot6 x1, FT_F26Dot6 x2, PProfile left, PProfile right)
static void	Horizontal_Sweep_Step (RAS_ARG)
static Bool	Draw_Sweep (RAS_ARG)
static int	Render_Single_Pass (RAS_ARGS Bool flipped)
	Render_Glyph (RAS_ARG)
	Render_Gray_Glyph (RAS_ARG)
static void	ft_black_init (PRaster raster)
static int	ft_black_new (FT_Memory memory, PRaster *araster)
static void	ft_black_done (PRaster raster)
static void	ft_black_reset (PRaster raster, char *pool_base, long pool_size)
static void	ft_black_set_mode (PRaster raster, unsigned long mode, const char *palette)
static int	ft_black_render (PRaster raster, const FT_Raster_Params *params)