gfx_line.c File Reference

#include "fb_gfx.h"

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Macros
#define	CLIP_LEFT_EDGE   0x1
#define	CLIP_RIGHT_EDGE   0x2
#define	CLIP_BOTTOM_EDGE   0x4
#define	CLIP_TOP_EDGE   0x8
#define	CLIP_INSIDE(a)   (!a)
#define	CLIP_REJECT(a, b)   ((a) & (b))
#define	CLIP_ACCEPT(a, b)   (!((a) | (b)))

Functions
static int	encode (FB_GFXCTX *context, int x, int y)
static int	reverse_mask (int mask)
static int	clip_line (FB_GFXCTX *context, int *x1, int *y1, int *x2, int *y2)
FBCALL void	fb_GfxLine (void *target, float fx1, float fy1, float fx2, float fy2, unsigned int color, int type, unsigned int style, int flags)

Macro Definition Documentation

#define CLIP_ACCEPT	(		a,
			b
	)		(!((a) | (b)))

Definition at line 12 of file gfx_line.c.

#define CLIP_BOTTOM_EDGE   0x4

Definition at line 8 of file gfx_line.c.

#define CLIP_INSIDE

(

a)

(!a)

Definition at line 10 of file gfx_line.c.

#define CLIP_LEFT_EDGE   0x1

Definition at line 6 of file gfx_line.c.

#define CLIP_REJECT	(		a,
			b
	)		((a) & (b))

Definition at line 11 of file gfx_line.c.

#define CLIP_RIGHT_EDGE   0x2

Definition at line 7 of file gfx_line.c.

#define CLIP_TOP_EDGE   0x8

Definition at line 9 of file gfx_line.c.

Function Documentation

static int clip_line ( FB_GFXCTX *  context, int *  x1, int *  y1, int *  x2, int *  y2  )

static

Definition at line 45 of file gfx_line.c.

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static int encode ( FB_GFXCTX *  context, int  x, int  y  )

static

Definition at line 16 of file gfx_line.c.

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FBCALL void fb_GfxLine	(	void *	target,
		float	fx1,
		float	fy1,
		float	fx2,
		float	fy2,
		unsigned int	color,
		int	type,
		unsigned int	style,
		int	flags
	)

Definition at line 92 of file gfx_line.c.

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static int reverse_mask ( int  mask)

static

Definition at line 33 of file gfx_line.c.

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