potracelib_demo.c File Reference

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include "potracelib.h"

Include dependency graph for potracelib_demo.c:

Go to the source code of this file.

Defines
#define	BM_HIBIT   (((potrace_word)1)<<(BM_WORDBITS-1))
#define	bm_index(bm, x, y)   (&bm_scanline(bm, y)[(x)/BM_WORDBITS])
#define	bm_mask(x)   (BM_HIBIT >> ((x) & (BM_WORDBITS-1)))
#define	BM_PUT(bm, x, y, b)   (bm_safe(bm, x, y) ? BM_UPUT(bm, x, y, b) : 0)
#define	bm_range(x, a)   ((int)(x) >= 0 && (int)(x) < (a))
#define	bm_safe(bm, x, y)   (bm_range(x, (bm)->w) && bm_range(y, (bm)->h))
#define	bm_scanline(bm, y)   ((bm)->map + (y)*(bm)->dy)
#define	BM_UCLR(bm, x, y)   (*bm_index(bm, x, y) &= ~bm_mask(x))
#define	BM_UPUT(bm, x, y, b)   ((b) ? BM_USET(bm, x, y) : BM_UCLR(bm, x, y))
#define	BM_USET(bm, x, y)   (*bm_index(bm, x, y) |= bm_mask(x))
#define	BM_WORDBITS   (8*BM_WORDSIZE)
#define	BM_WORDSIZE   ((int)sizeof(potrace_word))
#define	HEIGHT   250
#define	WIDTH   250
Functions
static void	bm_free (potrace_bitmap_t *bm)
static potrace_bitmap_t *	bm_new (int w, int h)
int	main ()

---

Define Documentation

#define BM_HIBIT   (((potrace_word)1)<<(BM_WORDBITS-1))

Definition at line 23 of file potracelib_demo.c.

#define bm_index	(		bm,
			x,
			y
	)		(&bm_scanline(bm, y)[(x)/BM_WORDBITS])

Definition at line 25 of file potracelib_demo.c.

#define bm_mask

(

x

)

(BM_HIBIT >> ((x) & (BM_WORDBITS-1)))

Definition at line 26 of file potracelib_demo.c.

#define BM_PUT	(		bm,
			x,
			y,
			b
	)		(bm_safe(bm, x, y) ? BM_UPUT(bm, x, y, b) : 0)

Definition at line 32 of file potracelib_demo.c.

#define bm_range	(		x,
			a
	)		((int)(x) >= 0 && (int)(x) < (a))

Definition at line 27 of file potracelib_demo.c.

#define bm_safe	(		bm,
			x,
			y
	)		(bm_range(x, (bm)->w) && bm_range(y, (bm)->h))

Definition at line 28 of file potracelib_demo.c.

#define bm_scanline	(		bm,
			y
	)		((bm)->map + (y)*(bm)->dy)

Definition at line 24 of file potracelib_demo.c.

#define BM_UCLR	(		bm,
			x,
			y
	)		(*bm_index(bm, x, y) &= ~bm_mask(x))

Definition at line 30 of file potracelib_demo.c.

#define BM_UPUT	(		bm,
			x,
			y,
			b
	)		((b) ? BM_USET(bm, x, y) : BM_UCLR(bm, x, y))

Definition at line 31 of file potracelib_demo.c.

#define BM_USET	(		bm,
			x,
			y
	)		(*bm_index(bm, x, y) |= bm_mask(x))

Definition at line 29 of file potracelib_demo.c.

#define BM_WORDBITS   (8*BM_WORDSIZE)

Definition at line 22 of file potracelib_demo.c.

#define BM_WORDSIZE   ((int)sizeof(potrace_word))

Definition at line 21 of file potracelib_demo.c.

#define HEIGHT   250

Definition at line 15 of file potracelib_demo.c.

#define WIDTH   250

Definition at line 14 of file potracelib_demo.c.

---

Function Documentation

static void bm_free

(

potrace_bitmap_t *

bm

)

[static]

Definition at line 55 of file potracelib_demo.c.

static potrace_bitmap_t* bm_new	(	int	w,
		int	h
	)		[static]

Definition at line 35 of file potracelib_demo.c.

int main

(

)

Definition at line 65 of file potracelib_demo.c.