#include "rast_soft.h"
#include <limits.h>

Include dependency graph for ftgrays.c:

Data Structures
struct	AACell

struct	AAScanline

struct	TRaster

Macros
#define	ErrRaster_MemoryOverflow -4

#define	ErrRaster_Invalid_Mode -2

#define	ErrRaster_Invalid_Outline -1

#define	GPAC_FIX_BITS 16

#define	PIXEL_BITS 8

#define	PIXEL_BITS_DIFF 8 /GPAC_FIX_BITS - PIXEL_BITS/

#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_DIFF) )

#define	DOWNSCALE(x) ( (x) << ( PIXEL_BITS_DIFF) )

#define	FT_MAX_GRAY_SPANS 64

#define	AA_CELL_STEP_ALLOC 8

#define	SWAP_CELLS(a, b, temp)

#define	QSORT_THRESHOLD 9 /* below this size, a sub-array will be sorted */

Typedefs
typedef int	TCoord

typedef long	TPos

typedef int	TArea

Functions
static void	gray_record_cell (TRaster *raster)

static void	gray_set_cell (TRaster *raster, TCoord ex, TCoord ey)

static void	evg_translate_point (GF_Matrix2D mx, EVG_Vector pt, TPos x, TPos y)

static int	gray_move_to (EVG_Vector *to, EVG_Raster raster)

static void	gray_render_scanline (TRaster *raster, TCoord ey, TPos x1, TCoord y1, TPos x2, TCoord y2)

static void	gray_render_line (TRaster *raster, TPos to_x, TPos to_y, int is_line)

static int	EVG_Outline_Decompose (EVG_Outline outline, TRaster user)

static void	gray_quick_sort (AACell *cells, int count)

static void	gray_hline (TRaster *raster, TCoord x, TCoord y, TPos area, int acount, Bool zero_non_zero_rule)

static void	gray_sweep_line (TRaster raster, AAScanline sl, int y, Bool zero_non_zero_rule)

int	evg_raster_render (EVG_Raster raster, EVG_Raster_Params *params)

EVG_Raster	evg_raster_new ()

void	evg_raster_del (EVG_Raster raster)

Data Structure Documentation

struct AACell

Collaboration diagram for AACell:

Data Fields
TCoord	x
int	cover
TArea	area

struct AAScanline

Collaboration diagram for AAScanline:

Data Fields
AACell *	cells
int	alloc
int	num

struct TRaster

Collaboration diagram for TRaster:

Data Fields
AAScanline *	scanlines
int	max_lines
TPos	min_ex
TPos	max_ex
TPos	min_ey
TPos	max_ey
TCoord	ex
TCoord	ey
TPos	x
TPos	y
TPos	last_ey
TArea	area
int	cover
EVG_Span	gray_spans[64]
int	num_gray_spans
EVG_SpanFunc	render_span
void *	render_span_data
GF_Matrix2D *	mx

Macro Definition Documentation

#define ErrRaster_MemoryOverflow -4

#define ErrRaster_Invalid_Mode -2

#define ErrRaster_Invalid_Outline -1

#define GPAC_FIX_BITS 16

#define PIXEL_BITS 8

#define PIXEL_BITS_DIFF 8 /*GPAC_FIX_BITS - PIXEL_BITS*/

#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_DIFF) )

#define DOWNSCALE ( x ) ( (x) << ( PIXEL_BITS_DIFF) )

#define FT_MAX_GRAY_SPANS 64

#define AA_CELL_STEP_ALLOC 8

#define SWAP_CELLS	(	a,
		b,
		temp
	)

Value:

{              \
                                    temp = *(a); \
                                    *(a) = *(b); \
                                    *(b) = temp; \
                                  }

#define QSORT_THRESHOLD 9 /* below this size, a sub-array will be sorted */

Typedef Documentation

typedef int TCoord

typedef long TPos

typedef int TArea