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greg |
2.1 |
#ifndef lint |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* rtmain.c - main for rtrace per-ray calculation program |
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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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* 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 "ray.h" |
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#include "source.h" |
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69 |
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#include "ambient.h" |
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71 |
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#include "random.h" |
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73 |
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#include "paths.h" |
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75 |
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#include <sys/types.h> |
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77 |
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#include <signal.h> |
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/* persistent processes define */ |
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#ifdef F_SETLKW |
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#define PERSIST 1 /* normal persist */ |
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#define PARALLEL 2 /* parallel persist */ |
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#define PCHILD 3 /* child of normal persist */ |
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#endif |
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char *progname; /* argv[0] */ |
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char *octname; /* octree name */ |
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char *sigerr[NSIG]; /* signal error messages */ |
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char *shm_boundary = NULL; /* boundary of shared memory */ |
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93 |
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char *errfile = NULL; /* error output file */ |
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95 |
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extern char *formstr(); /* string from format */ |
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extern int inform; /* input format */ |
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extern int outform; /* output format */ |
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extern char *outvals; /* output values */ |
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100 |
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extern int hresolu; /* horizontal resolution */ |
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extern int vresolu; /* vertical resolution */ |
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extern int imm_irrad; /* compute immediate irradiance? */ |
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extern int lim_dist; /* limit distance? */ |
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106 |
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extern char *tralist[]; /* list of modifers to trace (or no) */ |
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extern int traincl; /* include == 1, exclude == 0 */ |
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109 |
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void onsig(); |
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void sigdie(); |
111 |
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void printdefaults(); |
112 |
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113 |
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114 |
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int |
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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#define check(ol,al) if (argv[i][ol] || \ |
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badarg(argc-i-1,argv+i+1,al)) \ |
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goto badopt |
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#define bool(olen,var) switch (argv[i][olen]) { \ |
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case '\0': var = !var; break; \ |
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case 'y': case 'Y': case 't': case 'T': \ |
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case '+': case '1': var = 1; break; \ |
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case 'n': case 'N': case 'f': case 'F': \ |
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case '-': case '0': var = 0; break; \ |
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default: goto badopt; } |
129 |
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int loadflags = ~IO_FILES; |
130 |
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int persist = 0; |
131 |
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char **tralp; |
132 |
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int duped1; |
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int rval; |
134 |
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int i; |
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/* global program name */ |
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progname = argv[0] = fixargv0(argv[0]); |
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/* option city */ |
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for (i = 1; i < argc; i++) { |
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/* expand arguments */ |
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while ((rval = expandarg(&argc, &argv, i)) > 0) |
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; |
142 |
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if (rval < 0) { |
143 |
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sprintf(errmsg, "cannot expand '%s'", argv[i]); |
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error(SYSTEM, errmsg); |
145 |
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} |
146 |
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if (argv[i] == NULL || argv[i][0] != '-') |
147 |
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break; /* break from options */ |
148 |
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if (!strcmp(argv[i], "-version")) { |
149 |
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puts(VersionID); |
150 |
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quit(0); |
151 |
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} |
152 |
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if (!strcmp(argv[i], "-defaults") || |
153 |
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!strcmp(argv[i], "-help")) { |
154 |
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printdefaults(); |
155 |
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quit(0); |
156 |
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} |
157 |
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rval = getrenderopt(argc-i, argv+i); |
158 |
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if (rval >= 0) { |
159 |
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i += rval; |
160 |
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continue; |
161 |
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} |
162 |
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switch (argv[i][1]) { |
163 |
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case 'x': /* x resolution */ |
164 |
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check(2,"i"); |
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hresolu = atoi(argv[++i]); |
166 |
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break; |
167 |
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case 'y': /* y resolution */ |
168 |
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check(2,"i"); |
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vresolu = atoi(argv[++i]); |
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break; |
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case 'w': /* warnings */ |
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rval = erract[WARNING].pf != NULL; |
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bool(2,rval); |
174 |
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if (rval) erract[WARNING].pf = wputs; |
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else erract[WARNING].pf = NULL; |
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break; |
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case 'e': /* error file */ |
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check(2,"s"); |
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errfile = argv[++i]; |
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break; |
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case 'l': /* limit distance */ |
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if (argv[i][2] != 'd') |
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goto badopt; |
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bool(3,lim_dist); |
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break; |
186 |
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case 'I': /* immed. irradiance */ |
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bool(2,imm_irrad); |
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break; |
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case 'f': /* format i/o */ |
190 |
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switch (argv[i][2]) { |
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case 'a': /* ascii */ |
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case 'f': /* float */ |
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case 'd': /* double */ |
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inform = argv[i][2]; |
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break; |
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default: |
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goto badopt; |
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} |
199 |
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switch (argv[i][3]) { |
200 |
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case '\0': |
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outform = inform; |
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break; |
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case 'a': /* ascii */ |
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case 'f': /* float */ |
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case 'd': /* double */ |
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case 'c': /* color */ |
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check(4,""); |
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outform = argv[i][3]; |
209 |
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break; |
210 |
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default: |
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goto badopt; |
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} |
213 |
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break; |
214 |
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case 'o': /* output */ |
215 |
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outvals = argv[i]+2; |
216 |
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break; |
217 |
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case 'h': /* header output */ |
218 |
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rval = loadflags & IO_INFO; |
219 |
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bool(2,rval); |
220 |
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loadflags = rval ? loadflags | IO_INFO : |
221 |
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loadflags & ~IO_INFO; |
222 |
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break; |
223 |
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case 't': /* trace */ |
224 |
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switch (argv[i][2]) { |
225 |
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case 'i': /* include */ |
226 |
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case 'I': |
227 |
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check(3,"s"); |
228 |
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if (traincl != 1) { |
229 |
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traincl = 1; |
230 |
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tralp = tralist; |
231 |
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} |
232 |
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if (argv[i][2] == 'I') { /* file */ |
233 |
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rval = wordfile(tralp, |
234 |
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getpath(argv[++i],getlibpath(),R_OK)); |
235 |
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if (rval < 0) { |
236 |
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sprintf(errmsg, |
237 |
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"cannot open trace include file \"%s\"", |
238 |
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argv[i]); |
239 |
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error(SYSTEM, errmsg); |
240 |
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} |
241 |
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tralp += rval; |
242 |
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} else { |
243 |
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*tralp++ = argv[++i]; |
244 |
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*tralp = NULL; |
245 |
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} |
246 |
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break; |
247 |
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case 'e': /* exclude */ |
248 |
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case 'E': |
249 |
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check(3,"s"); |
250 |
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if (traincl != 0) { |
251 |
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traincl = 0; |
252 |
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tralp = tralist; |
253 |
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} |
254 |
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if (argv[i][2] == 'E') { /* file */ |
255 |
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rval = wordfile(tralp, |
256 |
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getpath(argv[++i],getlibpath(),R_OK)); |
257 |
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if (rval < 0) { |
258 |
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sprintf(errmsg, |
259 |
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"cannot open trace exclude file \"%s\"", |
260 |
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argv[i]); |
261 |
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error(SYSTEM, errmsg); |
262 |
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} |
263 |
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tralp += rval; |
264 |
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} else { |
265 |
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*tralp++ = argv[++i]; |
266 |
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|
*tralp = NULL; |
267 |
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} |
268 |
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break; |
269 |
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default: |
270 |
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goto badopt; |
271 |
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} |
272 |
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break; |
273 |
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#ifdef PERSIST |
274 |
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case 'P': /* persist file */ |
275 |
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if (argv[i][2] == 'P') { |
276 |
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check(3,"s"); |
277 |
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persist = PARALLEL; |
278 |
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} else { |
279 |
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check(2,"s"); |
280 |
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persist = PERSIST; |
281 |
|
|
} |
282 |
|
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persistfile(argv[++i]); |
283 |
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break; |
284 |
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#endif |
285 |
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default: |
286 |
|
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goto badopt; |
287 |
|
|
} |
288 |
|
|
} |
289 |
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/* initialize object types */ |
290 |
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initotypes(); |
291 |
|
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/* initialize urand */ |
292 |
|
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initurand(2048); |
293 |
|
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/* set up signal handling */ |
294 |
|
|
sigdie(SIGINT, "Interrupt"); |
295 |
|
|
sigdie(SIGHUP, "Hangup"); |
296 |
|
|
sigdie(SIGTERM, "Terminate"); |
297 |
|
|
sigdie(SIGPIPE, "Broken pipe"); |
298 |
|
|
sigdie(SIGALRM, "Alarm clock"); |
299 |
|
|
#ifdef SIGXCPU |
300 |
|
|
sigdie(SIGXCPU, "CPU limit exceeded"); |
301 |
|
|
sigdie(SIGXFSZ, "File size exceeded"); |
302 |
|
|
#endif |
303 |
|
|
/* open error file */ |
304 |
|
|
if (errfile != NULL) { |
305 |
|
|
if (freopen(errfile, "a", stderr) == NULL) |
306 |
|
|
quit(2); |
307 |
|
|
fprintf(stderr, "**************\n*** PID %5d: ", |
308 |
|
|
getpid()); |
309 |
|
|
printargs(argc, argv, stderr); |
310 |
|
|
putc('\n', stderr); |
311 |
|
|
fflush(stderr); |
312 |
|
|
} |
313 |
|
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#ifdef NICE |
314 |
|
|
nice(NICE); /* lower priority */ |
315 |
|
|
#endif |
316 |
|
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/* get octree */ |
317 |
|
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if (i == argc) |
318 |
|
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octname = NULL; |
319 |
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else if (i == argc-1) |
320 |
|
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octname = argv[i]; |
321 |
|
|
else |
322 |
|
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goto badopt; |
323 |
|
|
if (octname == NULL) |
324 |
|
|
error(USER, "missing octree argument"); |
325 |
|
|
/* set up output */ |
326 |
|
|
#ifdef PERSIST |
327 |
|
|
if (persist) { |
328 |
|
|
duped1 = dup(fileno(stdout)); /* don't lose our output */ |
329 |
|
|
openheader(); |
330 |
|
|
} |
331 |
|
|
#endif |
332 |
|
|
#ifdef MSDOS |
333 |
|
|
if (outform != 'a') |
334 |
|
|
setmode(fileno(stdout), O_BINARY); |
335 |
|
|
if (octname == NULL) |
336 |
|
|
setmode(fileno(stdin), O_BINARY); |
337 |
|
|
#endif |
338 |
|
|
readoct(octname, loadflags, &thescene, NULL); |
339 |
|
|
nsceneobjs = nobjects; |
340 |
|
|
|
341 |
|
|
if (loadflags & IO_INFO) { /* print header */ |
342 |
|
|
printargs(i, argv, stdout); |
343 |
|
|
printf("SOFTWARE= %s\n", VersionID); |
344 |
|
|
fputnow(stdout); |
345 |
|
|
fputformat(formstr(outform), stdout); |
346 |
|
|
putchar('\n'); |
347 |
|
|
} |
348 |
|
|
|
349 |
|
|
marksources(); /* find and mark sources */ |
350 |
|
|
|
351 |
|
|
setambient(); /* initialize ambient calculation */ |
352 |
|
|
|
353 |
|
|
#ifdef PERSIST |
354 |
|
|
if (persist) { |
355 |
|
|
fflush(stdout); |
356 |
|
|
/* reconnect stdout */ |
357 |
|
|
dup2(duped1, fileno(stdout)); |
358 |
|
|
close(duped1); |
359 |
|
|
if (persist == PARALLEL) { /* multiprocessing */ |
360 |
|
|
preload_objs(); /* preload scene */ |
361 |
|
|
shm_boundary = (char *)malloc(16); |
362 |
|
|
strcpy(shm_boundary, "SHM_BOUNDARY"); |
363 |
|
|
while ((rval=fork()) == 0) { /* keep on forkin' */ |
364 |
|
|
pflock(1); |
365 |
|
|
pfhold(); |
366 |
|
|
} |
367 |
|
|
if (rval < 0) |
368 |
|
|
error(SYSTEM, "cannot fork child for persist function"); |
369 |
|
|
pfdetach(); /* parent exits */ |
370 |
|
|
} |
371 |
|
|
} |
372 |
|
|
runagain: |
373 |
|
|
if (persist) |
374 |
|
|
dupheader(); /* send header to stdout */ |
375 |
|
|
#endif |
376 |
|
|
/* trace rays */ |
377 |
|
|
rtrace(NULL); |
378 |
|
|
/* flush ambient file */ |
379 |
|
|
ambsync(); |
380 |
|
|
#ifdef PERSIST |
381 |
|
|
if (persist == PERSIST) { /* first run-through */ |
382 |
|
|
if ((rval=fork()) == 0) { /* child loops until killed */ |
383 |
|
|
pflock(1); |
384 |
|
|
persist = PCHILD; |
385 |
|
|
} else { /* original process exits */ |
386 |
|
|
if (rval < 0) |
387 |
|
|
error(SYSTEM, "cannot fork child for persist function"); |
388 |
|
|
pfdetach(); /* parent exits */ |
389 |
|
|
} |
390 |
|
|
} |
391 |
|
|
if (persist == PCHILD) { /* wait for a signal then go again */ |
392 |
|
|
close(duped1); /* release output handle */ |
393 |
|
|
pfhold(); |
394 |
|
|
raynum = nrays = 0; /* reinitialize */ |
395 |
|
|
goto runagain; |
396 |
|
|
} |
397 |
|
|
#endif |
398 |
|
|
quit(0); |
399 |
|
|
|
400 |
|
|
badopt: |
401 |
|
|
sprintf(errmsg, "command line error at '%s'", argv[i]); |
402 |
|
|
error(USER, errmsg); |
403 |
|
|
|
404 |
|
|
#undef check |
405 |
|
|
#undef bool |
406 |
|
|
} |
407 |
|
|
|
408 |
|
|
|
409 |
|
|
void |
410 |
|
|
wputs(s) /* warning output function */ |
411 |
|
|
char *s; |
412 |
|
|
{ |
413 |
|
|
int lasterrno = errno; |
414 |
|
|
eputs(s); |
415 |
|
|
errno = lasterrno; |
416 |
|
|
} |
417 |
|
|
|
418 |
|
|
|
419 |
|
|
void |
420 |
|
|
eputs(s) /* put string to stderr */ |
421 |
|
|
register char *s; |
422 |
|
|
{ |
423 |
|
|
static int midline = 0; |
424 |
|
|
|
425 |
|
|
if (!*s) |
426 |
|
|
return; |
427 |
|
|
if (!midline++) { |
428 |
|
|
fputs(progname, stderr); |
429 |
|
|
fputs(": ", stderr); |
430 |
|
|
} |
431 |
|
|
fputs(s, stderr); |
432 |
|
|
if (s[strlen(s)-1] == '\n') { |
433 |
|
|
fflush(stderr); |
434 |
|
|
midline = 0; |
435 |
|
|
} |
436 |
|
|
} |
437 |
|
|
|
438 |
|
|
|
439 |
|
|
void |
440 |
|
|
onsig(signo) /* fatal signal */ |
441 |
|
|
int signo; |
442 |
|
|
{ |
443 |
|
|
static int gotsig = 0; |
444 |
|
|
|
445 |
|
|
if (gotsig++) /* two signals and we're gone! */ |
446 |
|
|
_exit(signo); |
447 |
|
|
|
448 |
|
|
alarm(15); /* allow 15 seconds to clean up */ |
449 |
|
|
signal(SIGALRM, SIG_DFL); /* make certain we do die */ |
450 |
|
|
eputs("signal - "); |
451 |
|
|
eputs(sigerr[signo]); |
452 |
|
|
eputs("\n"); |
453 |
|
|
quit(3); |
454 |
|
|
} |
455 |
|
|
|
456 |
|
|
|
457 |
|
|
void |
458 |
|
|
sigdie(signo, msg) /* set fatal signal */ |
459 |
|
|
int signo; |
460 |
|
|
char *msg; |
461 |
|
|
{ |
462 |
|
|
if (signal(signo, onsig) == SIG_IGN) |
463 |
|
|
signal(signo, SIG_IGN); |
464 |
|
|
sigerr[signo] = msg; |
465 |
|
|
} |
466 |
|
|
|
467 |
|
|
|
468 |
|
|
void |
469 |
|
|
printdefaults() /* print default values to stdout */ |
470 |
|
|
{ |
471 |
|
|
register char *cp; |
472 |
|
|
|
473 |
|
|
if (imm_irrad) |
474 |
|
|
printf("-I+\t\t\t\t# immediate irradiance on\n"); |
475 |
|
|
printf("-x %-9d\t\t\t# x resolution\n", hresolu); |
476 |
|
|
printf("-y %-9d\t\t\t# y resolution\n", vresolu); |
477 |
|
|
printf(lim_dist ? "-ld+\t\t\t\t# limit distance on\n" : |
478 |
|
|
"-ld-\t\t\t\t# limit distance off\n"); |
479 |
|
|
printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n", |
480 |
|
|
inform, outform, formstr(inform), formstr(outform)); |
481 |
|
|
printf("-o%s\t\t\t\t# output", outvals); |
482 |
|
|
for (cp = outvals; *cp; cp++) |
483 |
|
|
switch (*cp) { |
484 |
|
|
case 't': printf(" trace"); break; |
485 |
|
|
case 'o': printf(" origin"); break; |
486 |
|
|
case 'd': printf(" direction"); break; |
487 |
|
|
case 'v': printf(" value"); break; |
488 |
|
|
case 'l': printf(" length"); break; |
489 |
|
|
case 'L': printf(" first_length"); break; |
490 |
|
|
case 'p': printf(" point"); break; |
491 |
|
|
case 'n': printf(" normal"); break; |
492 |
|
|
case 'N': printf(" unperturbed_normal"); break; |
493 |
|
|
case 's': printf(" surface"); break; |
494 |
|
|
case 'w': printf(" weight"); break; |
495 |
|
|
case 'm': printf(" modifier"); break; |
496 |
|
|
} |
497 |
|
|
putchar('\n'); |
498 |
|
|
printf(erract[WARNING].pf != NULL ? |
499 |
|
|
"-w+\t\t\t\t# warning messages on\n" : |
500 |
|
|
"-w-\t\t\t\t# warning messages off\n"); |
501 |
|
|
print_rdefaults(); |
502 |
|
|
} |