src/ot/writeoct.c

/* Copyright (c) 1986 Regents of the University of California */

#ifndef lint
static char SCCSid[] = "$SunId$ LBL";
#endif

/*
 *  writeoct.c - routines for writing octree information to stdout.
 *
 *     7/30/85
 */

#include  "standard.h"

#include  "octree.h"

#include  "object.h"

#include  "otypes.h"


writeoct(store, scene, ofn)             /* write octree structures to stdout */
int  store;
CUBE  *scene;
char  *ofn[];
{
        char  sbuf[64];
        register int  i;
                                        /* write format number */
        putint((long)OCTMAGIC, 2);

        if (!(store & IO_BOUNDS))
                return;
                                        /* write boundaries */
        for (i = 0; i < 3; i++) {
                sprintf(sbuf, "%.12g", scene->cuorg[i]);
                putstr(sbuf);
        }
        sprintf(sbuf, "%.12g", scene->cusize);
        putstr(sbuf);
                                        /* write object file names */
        if (store & IO_FILES)
                for (i = 0; ofn[i] != NULL; i++)
                        putstr(ofn[i]);
        putstr("");
                                        /* write number of objects */
        putint((long)nobjects, sizeof(OBJECT));

        if (!(store & IO_TREE))
                return;
                                        /* write the octree */
        puttree(scene->cutree);

        if (store & IO_FILES || !(store & IO_SCENE))
                return;
                                        /* write the scene */
        for (i = 0; i < NUMOTYPE; i++)
                putstr(ofun[i].funame);
        putstr("");
        for (i = 0; i < nobjects; i++)
                putobj(objptr(i));
        putobj(NULL);
}


static
putstr(s)                       /* write null-terminated string to stdout */
register char  *s;
{
        do
                putc(*s, stdout);
        while (*s++);
        if (ferror(stdout))
                error(SYSTEM, "write error in putstr");
}


static
putfullnode(fn)                 /* write out a full node */
OCTREE  fn;
{
        OBJECT  oset[MAXSET+1];
        register int  i;

        objset(oset, fn);
        for (i = 0; i <= oset[0]; i++)
                putint((long)oset[i], sizeof(OBJECT));
}


static
putint(i, siz)                  /* write a siz-byte integer to stdout */
register long  i;
register int  siz;
{
        while (siz--)
                putc(i>>(siz<<3) & 0xff, stdout);
        if (ferror(stdout))
                error(SYSTEM, "write error in putint");
}


static
putflt(f)                       /* put out floating point number */
double  f;
{
        extern double  frexp();
        int  e;

        putint((long)(frexp(f,&e)*0x7fffffff), 4);
        putint(e, 1);
}


static
puttree(ot)                     /* write octree to stdout in pre-order form */
register OCTREE  ot;
{
        register int  i;
        
        if (istree(ot)) {
                putc(OT_TREE, stdout);          /* indicate tree */
                for (i = 0; i < 8; i++)         /* write tree */
                        puttree(octkid(ot, i));
        } else if (isfull(ot)) {
                putc(OT_FULL, stdout);          /* indicate fullnode */
                putfullnode(ot);                /* write fullnode */
        } else
                putc(OT_EMPTY, stdout);         /* indicate empty */
}


static
putobj(o)                       /* write out object */
register OBJREC  *o;
{
        register int  i;

        if (o == NULL) {                /* terminator */
                putint(-1L, 1);
                return;
        }
        putint((long)o->otype, 1);
        putint((long)o->omod, sizeof(OBJECT));
        putstr(o->oname);
        putint((long)o->oargs.nsargs, 2);
        for (i = 0; i < o->oargs.nsargs; i++)
                putstr(o->oargs.sarg[i]);
#ifdef  IARGS
        putint(o->oargs.niargs, 2);
        for (i = 0; i < o->oargs.niargs; i++)
                putint(o->oargs.iarg[i], 4);
#endif
        putint((long)o->oargs.nfargs, 2);
        for (i = 0; i < o->oargs.nfargs; i++)
                putflt(o->oargs.farg[i]);
}
Revision:	1.3
Committed:	Thu Sep 6 23:30:13 1990 UTC (33 years, 7 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 1.2:	+2 -0 lines
Log Message:	added consistency checks for stale octrees
#	User	Rev	Content
1	greg	1.1	/* Copyright (c) 1986 Regents of the University of California */
2
3			#ifndef lint
4			static char SCCSid[] = "$SunId$ LBL";
5			#endif
6
7			/*
8			* writeoct.c - routines for writing octree information to stdout.
9			*
10			* 7/30/85
11			*/
12
13			#include "standard.h"
14
15			#include "octree.h"
16
17			#include "object.h"
18
19			#include "otypes.h"
20
21
22			writeoct(store, scene, ofn) /* write octree structures to stdout */
23			int store;
24			CUBE *scene;
25			char *ofn[];
26			{
27			char sbuf[64];
28			register int i;
29			/* write format number */
30			putint((long)OCTMAGIC, 2);
31
32			if (!(store & IO_BOUNDS))
33			return;
34			/* write boundaries */
35			for (i = 0; i < 3; i++) {
36			sprintf(sbuf, "%.12g", scene->cuorg[i]);
37			putstr(sbuf);
38			}
39			sprintf(sbuf, "%.12g", scene->cusize);
40			putstr(sbuf);
41			/* write object file names */
42			if (store & IO_FILES)
43			for (i = 0; ofn[i] != NULL; i++)
44			putstr(ofn[i]);
45			putstr("");
46	greg	1.3	/* write number of objects */
47			putint((long)nobjects, sizeof(OBJECT));
48	greg	1.1
49			if (!(store & IO_TREE))
50			return;
51			/* write the octree */
52			puttree(scene->cutree);
53
54			if (store & IO_FILES \|\| !(store & IO_SCENE))
55			return;
56			/* write the scene */
57			for (i = 0; i < NUMOTYPE; i++)
58			putstr(ofun[i].funame);
59			putstr("");
60			for (i = 0; i < nobjects; i++)
61			putobj(objptr(i));
62			putobj(NULL);
63			}
64
65
66			static
67			putstr(s) /* write null-terminated string to stdout */
68			register char *s;
69			{
70			do
71			putc(*s, stdout);
72			while (*s++);
73			if (ferror(stdout))
74			error(SYSTEM, "write error in putstr");
75			}
76
77
78			static
79			putfullnode(fn) /* write out a full node */
80			OCTREE fn;
81			{
82			OBJECT oset[MAXSET+1];
83			register int i;
84
85			objset(oset, fn);
86			for (i = 0; i <= oset[0]; i++)
87			putint((long)oset[i], sizeof(OBJECT));
88			}
89
90
91			static
92			putint(i, siz) /* write a siz-byte integer to stdout */
93			register long i;
94			register int siz;
95			{
96			while (siz--)
97	greg	1.2	putc(i>>(siz<<3) & 0xff, stdout);
98	greg	1.1	if (ferror(stdout))
99			error(SYSTEM, "write error in putint");
100			}
101
102
103			static
104			putflt(f) /* put out floating point number */
105			double f;
106			{
107			extern double frexp();
108			int e;
109
110	greg	1.2	putint((long)(frexp(f,&e)*0x7fffffff), 4);
111	greg	1.1	putint(e, 1);
112			}
113
114
115			static
116			puttree(ot) /* write octree to stdout in pre-order form */
117			register OCTREE ot;
118			{
119			register int i;
120
121			if (istree(ot)) {
122			putc(OT_TREE, stdout); /* indicate tree */
123			for (i = 0; i < 8; i++) /* write tree */
124			puttree(octkid(ot, i));
125			} else if (isfull(ot)) {
126			putc(OT_FULL, stdout); /* indicate fullnode */
127			putfullnode(ot); /* write fullnode */
128			} else
129			putc(OT_EMPTY, stdout); /* indicate empty */
130			}
131
132
133			static
134			putobj(o) /* write out object */
135			register OBJREC *o;
136			{
137			register int i;
138
139			if (o == NULL) { /* terminator */
140			putint(-1L, 1);
141			return;
142			}
143			putint((long)o->otype, 1);
144			putint((long)o->omod, sizeof(OBJECT));
145			putstr(o->oname);
146			putint((long)o->oargs.nsargs, 2);
147			for (i = 0; i < o->oargs.nsargs; i++)
148			putstr(o->oargs.sarg[i]);
149			#ifdef IARGS
150			putint(o->oargs.niargs, 2);
151			for (i = 0; i < o->oargs.niargs; i++)
152	greg	1.2	putint(o->oargs.iarg[i], 4);
153	greg	1.1	#endif
154			putint((long)o->oargs.nfargs, 2);
155			for (i = 0; i < o->oargs.nfargs; i++)
156			putflt(o->oargs.farg[i]);
157			}