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/* Copyright (c) 1986 Regents of the University of California */
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#ifndef lint
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static char SCCSid[] = "$SunId$ LBL";
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#endif
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/*
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* writeoct.c - routines for writing octree information to stdout.
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*
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* 7/30/85
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*/
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#include "standard.h"
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#include "octree.h"
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#include "object.h"
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#include "otypes.h"
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writeoct(store, scene, ofn) /* write octree structures to stdout */
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int store;
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CUBE *scene;
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char *ofn[];
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{
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char sbuf[64];
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register int i;
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/* write format number */
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putint((long)OCTMAGIC, 2);
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if (!(store & IO_BOUNDS))
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return;
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/* write boundaries */
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for (i = 0; i < 3; i++) {
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sprintf(sbuf, "%.12g", scene->cuorg[i]);
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putstr(sbuf);
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}
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sprintf(sbuf, "%.12g", scene->cusize);
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putstr(sbuf);
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/* write object file names */
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if (store & IO_FILES)
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for (i = 0; ofn[i] != NULL; i++)
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putstr(ofn[i]);
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putstr("");
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if (!(store & IO_TREE))
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return;
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/* write the octree */
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puttree(scene->cutree);
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if (store & IO_FILES || !(store & IO_SCENE))
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return;
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/* write the scene */
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for (i = 0; i < NUMOTYPE; i++)
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putstr(ofun[i].funame);
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putstr("");
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for (i = 0; i < nobjects; i++)
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putobj(objptr(i));
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putobj(NULL);
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}
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static
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putstr(s) /* write null-terminated string to stdout */
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register char *s;
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{
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do
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putc(*s, stdout);
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while (*s++);
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if (ferror(stdout))
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error(SYSTEM, "write error in putstr");
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}
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static
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putfullnode(fn) /* write out a full node */
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OCTREE fn;
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{
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OBJECT oset[MAXSET+1];
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register int i;
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objset(oset, fn);
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for (i = 0; i <= oset[0]; i++)
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putint((long)oset[i], sizeof(OBJECT));
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}
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static
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putint(i, siz) /* write a siz-byte integer to stdout */
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register long i;
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register int siz;
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{
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while (siz--)
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putc(i>>(siz<<3) & 0377, stdout);
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if (ferror(stdout))
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error(SYSTEM, "write error in putint");
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}
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static
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putflt(f) /* put out floating point number */
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double f;
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{
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extern double frexp();
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int e;
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putint((long)(frexp(f,&e)*0x7fffffff), sizeof(long));
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putint(e, 1);
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}
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static
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puttree(ot) /* write octree to stdout in pre-order form */
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register OCTREE ot;
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{
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register int i;
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if (istree(ot)) {
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putc(OT_TREE, stdout); /* indicate tree */
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for (i = 0; i < 8; i++) /* write tree */
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puttree(octkid(ot, i));
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} else if (isfull(ot)) {
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putc(OT_FULL, stdout); /* indicate fullnode */
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putfullnode(ot); /* write fullnode */
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} else
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putc(OT_EMPTY, stdout); /* indicate empty */
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}
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static
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putobj(o) /* write out object */
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register OBJREC *o;
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{
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register int i;
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if (o == NULL) { /* terminator */
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putint(-1L, 1);
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return;
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}
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putint((long)o->otype, 1);
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putint((long)o->omod, sizeof(OBJECT));
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putstr(o->oname);
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putint((long)o->oargs.nsargs, 2);
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for (i = 0; i < o->oargs.nsargs; i++)
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putstr(o->oargs.sarg[i]);
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#ifdef IARGS
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putint(o->oargs.niargs, 2);
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for (i = 0; i < o->oargs.niargs; i++)
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putint(o->oargs.iarg[i], sizeof(long));
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#endif
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putint((long)o->oargs.nfargs, 2);
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for (i = 0; i < o->oargs.nfargs; i++)
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putflt(o->oargs.farg[i]);
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}
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