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/* Copyright (c) 1992 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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static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* readoct.c - routines to read octree information. |
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*/ |
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|
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/* ==================================================================== |
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* The Radiance Software License, Version 1.0 |
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* |
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* 7/30/85 |
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* Copyright (c) 1990 - 2002 The Regents of the University of California, |
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* through Lawrence Berkeley National Laboratory. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, |
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* if any, must include the following acknowledgment: |
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* "This product includes Radiance software |
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* (http://radsite.lbl.gov/) |
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* developed by the Lawrence Berkeley National Laboratory |
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* (http://www.lbl.gov/)." |
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* Alternately, this acknowledgment may appear in the software itself, |
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* if and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
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* and "The Regents of the University of California" must |
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* not be used to endorse or promote products derived from this |
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* software without prior written permission. For written |
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* permission, please contact [email protected]. |
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* |
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* 5. Products derived from this software may not be called "Radiance", |
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* nor may "Radiance" appear in their name, without prior written |
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* permission of Lawrence Berkeley National Laboratory. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
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* information on Lawrence Berkeley National Laboratory, please see |
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* <http://www.lbl.gov/>. |
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*/ |
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#include "standard.h" |
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static double ogetflt(); |
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static long ogetint(); |
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static char *ogetstr(); |
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static int getobj(), octerror(); |
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static int nonsurfinset(); |
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static int getobj(), octerror(), skiptree(); |
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static OCTREE getfullnode(), gettree(); |
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|
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static char *infn; /* input file name */ |
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static char *infn; /* input file specification */ |
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static FILE *infp; /* input file stream */ |
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static int objsize; /* size of stored OBJECT's */ |
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static OBJECT objorig; /* zeroeth object */ |
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static OBJECT fnobjects; /* number of objects in this file */ |
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static short otypmap[NUMOTYPE+8]; /* object type map */ |
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|
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|
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int |
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readoct(fname, load, scene, ofn) /* read in octree from file */ |
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char *fname; |
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readoct(inpspec, load, scene, ofn) /* read in octree file or stream */ |
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char *inpspec; |
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int load; |
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CUBE *scene; |
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char *ofn[]; |
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{ |
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extern int fputs(); |
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char sbuf[512]; |
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int nf; |
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OBJECT fnobjects; |
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register int i; |
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long m; |
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|
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if (fname == NULL) { |
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if (inpspec == NULL) { |
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infn = "standard input"; |
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infp = stdin; |
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} else if (inpspec[0] == '!') { |
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infn = inpspec; |
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if ((infp = popen(inpspec+1, "r")) == NULL) { |
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sprintf(errmsg, "cannot execute \"%s\"", inpspec); |
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error(SYSTEM, errmsg); |
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} |
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} else { |
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infn = fname; |
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if ((infp = fopen(fname, "r")) == NULL) { |
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infn = inpspec; |
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if ((infp = fopen(inpspec, "r")) == NULL) { |
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sprintf(errmsg, "cannot open octree file \"%s\"", |
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fname); |
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inpspec); |
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error(SYSTEM, errmsg); |
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} |
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} |
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#ifdef MSDOS |
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setmode(fileno(infp), O_BINARY); |
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#endif |
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/* get header */ |
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if (checkheader(infp, OCTFMT, load&IO_INFO ? stdout : NULL) < 0) |
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if (checkheader(infp, OCTFMT, load&IO_INFO ? stdout : (FILE *)NULL) < 0) |
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octerror(USER, "not an octree"); |
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/* check format */ |
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if ((objsize = ogetint(2)-OCTMAGIC) <= 0 || |
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if (fnobjects != m) |
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octerror(USER, "too many objects"); |
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|
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if (load & IO_TREE) /* get the octree */ |
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if (load & IO_TREE) /* get the octree */ |
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scene->cutree = gettree(); |
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else if (load & IO_SCENE && nf == 0) |
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skiptree(); |
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if (nobjects != objorig+fnobjects) |
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octerror(USER, "bad object count; octree stale?"); |
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/* check for non-surfaces */ |
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if (nonsurfinset(objorig, fnobjects)) |
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if (dosets(nonsurfinset)) |
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octerror(USER, "modifier in tree; octree stale?"); |
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} |
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fclose(infp); |
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/* close the input */ |
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if (infn[0] == '!') |
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pclose(infp); |
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else |
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fclose(infp); |
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return(nf); |
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} |
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|
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static OCTREE |
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getfullnode() /* get a set, return fullnode */ |
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{ |
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OBJECT set[MAXSET+1]; |
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OBJECT set[MAXSET+1]; |
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register int i; |
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register long m; |
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|
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ogetflt() /* get a floating point number */ |
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{ |
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extern double getflt(); |
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double r; |
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double r; |
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|
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r = getflt(infp); |
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if (feof(infp)) |
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static OCTREE |
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gettree() /* get a pre-ordered octree */ |
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{ |
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register OCTREE ot; |
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register OCTREE ot; |
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register int i; |
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|
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switch (getc(infp)) { |
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} |
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|
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|
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static int |
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nonsurfinset(os) /* check set for modifier */ |
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register OBJECT *os; |
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{ |
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register OBJECT s; |
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register int i; |
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|
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for (i = *os; i-- > 0; ) |
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if ((s = *++os) >= objorig && s < objorig+fnobjects && |
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ismodifier(objptr(s)->otype)) |
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return(1); |
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return(0); |
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} |
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|
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|
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static |
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skiptree() /* skip octree on input */ |
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{ |
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int obj; |
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register int i; |
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register long m; |
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register OBJREC *objp; |
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register OBJREC *objp; |
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|
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i = ogetint(1); |
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if (i == -1) |
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objp->omod = m; |
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objp->oname = savqstr(ogetstr(sbuf)); |
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if (objp->oargs.nsargs = ogetint(2)) { |
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objp->oargs.sarg = (char **)bmalloc |
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objp->oargs.sarg = (char **)malloc |
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(objp->oargs.nsargs*sizeof(char *)); |
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if (objp->oargs.sarg == NULL) |
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goto memerr; |
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objp->oargs.sarg[i] = savestr(ogetstr(sbuf)); |
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} else |
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objp->oargs.sarg = NULL; |
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#ifdef IARGS |
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#ifdef IARGS |
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if (objp->oargs.niargs = ogetint(2)) { |
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objp->oargs.iarg = (long *)bmalloc |
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objp->oargs.iarg = (long *)malloc |
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(objp->oargs.niargs*sizeof(long)); |
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if (objp->oargs.iarg == NULL) |
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goto memerr; |
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objp->oargs.iarg = NULL; |
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#endif |
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if (objp->oargs.nfargs = ogetint(2)) { |
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objp->oargs.farg = (FLOAT *)bmalloc |
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objp->oargs.farg = (FLOAT *)malloc |
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(objp->oargs.nfargs*sizeof(FLOAT)); |
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if (objp->oargs.farg == NULL) |
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goto memerr; |
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objp->oargs.farg = NULL; |
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/* initialize */ |
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objp->os = NULL; |
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objp->lastrno = -1; |
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/* insert */ |
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insertobject(obj); |
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return(obj); |