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/* Copyright (c) 1986 Regents of the University of California */ |
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|
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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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/* |
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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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|
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#include "standard.h" |
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|
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#include "octree.h" |
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|
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#include "object.h" |
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|
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#include "otypes.h" |
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|
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|
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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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|
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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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/* write number of objects */ |
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putint((long)nobjects, sizeof(OBJECT)); |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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) & 0xff, 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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|
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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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|
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putint((long)(frexp(f,&e)*0x7fffffff), 4); |
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putint((long)e, 1); |
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} |
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|
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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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|
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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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|
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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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|
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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((long)o->oargs.niargs, 2); |
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for (i = 0; i < o->oargs.niargs; i++) |
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putint((long)o->oargs.iarg[i], 4); |
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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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} |
