xgequatrotball.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <malloc.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include "xgedit.h"
#include "xgeprivate.h"

Include dependency graph for xgequatrotball.c:

Defines
#define	T0   0.5
#define	T1   0.53125
#define	T2   0.46875
#define	STKSIZE   16
#define	NEIGHBOURS(a, b)   abs(a.x-b.x) <= 1 && abs(a.y-b.y) <= 1
#define	OUTPUT(px, z)
#define	PUSH(p, v, l)
#define	READ(p, v, l)   { p = stack[stp-1].px; v = stack[stp-1].vx; l = stack[stp-1].level; }
#define	POP   stp--;
Functions
void	_xge_QuatRotBallDrawCircles (short xc, short yc, short r, trans3f *tr)

---

Define Documentation

#define NEIGHBOURS	(		a,
			b
	)			abs(a.x-b.x) <= 1 && abs(a.y-b.y) <= 1

#define OUTPUT	(		px,
			z
	)

Value:

{ if ( z >= 0.0 ) { \
      if ( _pkv_npix == PKV_BUFSIZE ) { _pkv_npix -= 2;  PKV_FLUSH \
        memcpy ( &_pkv_pixbuf[0], &_pkv_pixbuf[PKV_BUFSIZE-2], 2*sizeof(xpoint) ); \
        _pkv_npix = 2; } \
      if ( _pkv_npix > 1 ) \
        { if ( NEIGHBOURS ( px, _pkv_pixbuf[_pkv_npix-2] ) ) _pkv_npix--; } \
      _pkv_pixbuf[_pkv_npix] = px;  _pkv_npix++; \
    } \
    lastz = z; \
  }

#define POP   stp--;

#define PUSH	(		p,
			v,
			l
	)

Value:

{ if (stp < STKSIZE) { stack[stp].px = p;  stack[stp].vx = (v); \
                         stack[stp].level = l;  stp++; } }

#define READ	(		p,
			v,
			l
	)			{ p = stack[stp-1].px; v = stack[stp-1].vx; l = stack[stp-1].level; }

#define STKSIZE   16

#define T0   0.5

#define T1   0.53125

#define T2   0.46875

---

Function Documentation

void _xge_QuatRotBallDrawCircles	(	short	xc,
		short	yc,
		short	r,
		trans3f *	tr
	)