1 |
greg |
2.1 |
#ifndef lint |
2 |
schorsch |
2.4 |
static const char RCSid[] = "$Id: rvmain.c,v 2.3 2003/06/05 19:29:34 schorsch Exp $"; |
3 |
greg |
2.1 |
#endif |
4 |
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/* |
5 |
|
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* rvmain.c - main for rview interactive viewer |
6 |
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*/ |
7 |
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8 |
greg |
2.2 |
#include "copyright.h" |
9 |
greg |
2.1 |
|
10 |
schorsch |
2.3 |
#include <signal.h> |
11 |
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12 |
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#include "platform.h" |
13 |
greg |
2.1 |
#include "ray.h" |
14 |
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#include "source.h" |
15 |
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#include "ambient.h" |
16 |
schorsch |
2.4 |
#include "rpaint.h" |
17 |
greg |
2.1 |
#include "random.h" |
18 |
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#include "paths.h" |
19 |
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#include "view.h" |
20 |
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21 |
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char *progname; /* argv[0] */ |
22 |
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23 |
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char *octname; /* octree name */ |
24 |
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25 |
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char *sigerr[NSIG]; /* signal error messages */ |
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27 |
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char *shm_boundary = NULL; /* boundary of shared memory */ |
28 |
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29 |
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char *errfile = NULL; /* error output file */ |
30 |
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31 |
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extern int greyscale; /* map colors to brightness? */ |
32 |
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extern char *dvcname; /* output device name */ |
33 |
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extern double exposure; /* exposure compensation */ |
34 |
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35 |
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extern VIEW ourview; /* viewing parameters */ |
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37 |
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extern char rifname[]; /* rad input file name */ |
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39 |
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extern int hresolu; /* horizontal resolution */ |
40 |
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extern int vresolu; /* vertical resolution */ |
41 |
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42 |
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extern int psample; /* pixel sample size */ |
43 |
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extern double maxdiff; /* max. sample difference */ |
44 |
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45 |
schorsch |
2.4 |
static void onsig(int signo); |
46 |
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static void sigdie(int signo, char *msg); |
47 |
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static void printdefaults(void); |
48 |
greg |
2.1 |
|
49 |
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50 |
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int |
51 |
schorsch |
2.4 |
main(int argc, char *argv[]) |
52 |
greg |
2.1 |
{ |
53 |
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#define check(ol,al) if (argv[i][ol] || \ |
54 |
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badarg(argc-i-1,argv+i+1,al)) \ |
55 |
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goto badopt |
56 |
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#define bool(olen,var) switch (argv[i][olen]) { \ |
57 |
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case '\0': var = !var; break; \ |
58 |
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case 'y': case 'Y': case 't': case 'T': \ |
59 |
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case '+': case '1': var = 1; break; \ |
60 |
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case 'n': case 'N': case 'f': case 'F': \ |
61 |
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case '-': case '0': var = 0; break; \ |
62 |
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default: goto badopt; } |
63 |
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char *err; |
64 |
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int rval; |
65 |
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int i; |
66 |
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/* global program name */ |
67 |
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progname = argv[0] = fixargv0(argv[0]); |
68 |
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/* option city */ |
69 |
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for (i = 1; i < argc; i++) { |
70 |
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/* expand arguments */ |
71 |
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while ((rval = expandarg(&argc, &argv, i)) > 0) |
72 |
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; |
73 |
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if (rval < 0) { |
74 |
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sprintf(errmsg, "cannot expand '%s'", argv[i]); |
75 |
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error(SYSTEM, errmsg); |
76 |
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} |
77 |
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if (argv[i] == NULL || argv[i][0] != '-') |
78 |
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break; /* break from options */ |
79 |
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if (!strcmp(argv[i], "-version")) { |
80 |
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puts(VersionID); |
81 |
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quit(0); |
82 |
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} |
83 |
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if (!strcmp(argv[i], "-defaults") || |
84 |
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!strcmp(argv[i], "-help")) { |
85 |
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printdefaults(); |
86 |
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quit(0); |
87 |
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} |
88 |
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if (!strcmp(argv[i], "-devices")) { |
89 |
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printdevices(); |
90 |
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quit(0); |
91 |
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} |
92 |
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rval = getrenderopt(argc-i, argv+i); |
93 |
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if (rval >= 0) { |
94 |
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i += rval; |
95 |
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continue; |
96 |
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} |
97 |
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rval = getviewopt(&ourview, argc-i, argv+i); |
98 |
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if (rval >= 0) { |
99 |
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i += rval; |
100 |
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continue; |
101 |
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} |
102 |
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switch (argv[i][1]) { |
103 |
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case 'v': /* view file */ |
104 |
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if (argv[i][2] != 'f') |
105 |
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goto badopt; |
106 |
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check(3,"s"); |
107 |
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rval = viewfile(argv[++i], &ourview, NULL); |
108 |
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if (rval < 0) { |
109 |
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sprintf(errmsg, |
110 |
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"cannot open view file \"%s\"", |
111 |
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argv[i]); |
112 |
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error(SYSTEM, errmsg); |
113 |
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} else if (rval == 0) { |
114 |
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sprintf(errmsg, |
115 |
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"bad view file \"%s\"", |
116 |
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argv[i]); |
117 |
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error(USER, errmsg); |
118 |
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} |
119 |
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break; |
120 |
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case 'b': /* grayscale */ |
121 |
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bool(2,greyscale); |
122 |
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break; |
123 |
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case 'p': /* pixel */ |
124 |
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switch (argv[i][2]) { |
125 |
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case 's': /* sample */ |
126 |
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check(3,"i"); |
127 |
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psample = atoi(argv[++i]); |
128 |
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break; |
129 |
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case 't': /* threshold */ |
130 |
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check(3,"f"); |
131 |
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maxdiff = atof(argv[++i]); |
132 |
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break; |
133 |
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case 'e': /* exposure */ |
134 |
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check(3,"f"); |
135 |
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exposure = atof(argv[++i]); |
136 |
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if (argv[i][0] == '+' || argv[i][0] == '-') |
137 |
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exposure = pow(2.0, exposure); |
138 |
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break; |
139 |
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default: |
140 |
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goto badopt; |
141 |
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} |
142 |
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break; |
143 |
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case 'w': /* warnings */ |
144 |
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rval = erract[WARNING].pf != NULL; |
145 |
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bool(2,rval); |
146 |
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if (rval) erract[WARNING].pf = wputs; |
147 |
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else erract[WARNING].pf = NULL; |
148 |
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break; |
149 |
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case 'e': /* error file */ |
150 |
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check(2,"s"); |
151 |
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errfile = argv[++i]; |
152 |
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break; |
153 |
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case 'o': /* output device */ |
154 |
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check(2,"s"); |
155 |
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dvcname = argv[++i]; |
156 |
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break; |
157 |
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case 'R': /* render input file */ |
158 |
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check(2,"s"); |
159 |
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strcpy(rifname, argv[++i]); |
160 |
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break; |
161 |
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default: |
162 |
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goto badopt; |
163 |
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} |
164 |
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} |
165 |
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err = setview(&ourview); /* set viewing parameters */ |
166 |
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if (err != NULL) |
167 |
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error(USER, err); |
168 |
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/* initialize object types */ |
169 |
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initotypes(); |
170 |
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/* initialize urand */ |
171 |
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initurand(2048); |
172 |
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/* set up signal handling */ |
173 |
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sigdie(SIGINT, "Interrupt"); |
174 |
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sigdie(SIGHUP, "Hangup"); |
175 |
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sigdie(SIGTERM, "Terminate"); |
176 |
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sigdie(SIGPIPE, "Broken pipe"); |
177 |
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sigdie(SIGALRM, "Alarm clock"); |
178 |
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#ifdef SIGXCPU |
179 |
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sigdie(SIGXCPU, "CPU limit exceeded"); |
180 |
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sigdie(SIGXFSZ, "File size exceeded"); |
181 |
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#endif |
182 |
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/* open error file */ |
183 |
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if (errfile != NULL) { |
184 |
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if (freopen(errfile, "a", stderr) == NULL) |
185 |
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quit(2); |
186 |
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fprintf(stderr, "**************\n*** PID %5d: ", |
187 |
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getpid()); |
188 |
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printargs(argc, argv, stderr); |
189 |
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putc('\n', stderr); |
190 |
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fflush(stderr); |
191 |
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} |
192 |
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#ifdef NICE |
193 |
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nice(NICE); /* lower priority */ |
194 |
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#endif |
195 |
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/* get octree */ |
196 |
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if (i == argc) |
197 |
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octname = NULL; |
198 |
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else if (i == argc-1) |
199 |
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octname = argv[i]; |
200 |
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else |
201 |
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goto badopt; |
202 |
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if (octname == NULL) |
203 |
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error(USER, "missing octree argument"); |
204 |
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/* set up output */ |
205 |
schorsch |
2.3 |
SET_FILE_BINARY(stdout); |
206 |
greg |
2.1 |
readoct(octname, ~(IO_FILES|IO_INFO), &thescene, NULL); |
207 |
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nsceneobjs = nobjects; |
208 |
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209 |
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marksources(); /* find and mark sources */ |
210 |
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211 |
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setambient(); /* initialize ambient calculation */ |
212 |
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213 |
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rview(); /* run interactive viewer */ |
214 |
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215 |
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ambsync(); /* flush ambient file */ |
216 |
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217 |
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quit(0); |
218 |
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219 |
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badopt: |
220 |
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sprintf(errmsg, "command line error at '%s'", argv[i]); |
221 |
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error(USER, errmsg); |
222 |
schorsch |
2.4 |
return 1; /* pro forma return */ |
223 |
greg |
2.1 |
|
224 |
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#undef check |
225 |
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#undef bool |
226 |
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} |
227 |
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228 |
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229 |
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void |
230 |
schorsch |
2.4 |
wputs( /* warning output function */ |
231 |
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char *s |
232 |
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) |
233 |
greg |
2.1 |
{ |
234 |
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int lasterrno = errno; |
235 |
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eputs(s); |
236 |
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errno = lasterrno; |
237 |
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} |
238 |
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239 |
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240 |
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void |
241 |
schorsch |
2.4 |
eputs( /* put string to stderr */ |
242 |
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register char *s |
243 |
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) |
244 |
greg |
2.1 |
{ |
245 |
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static int midline = 0; |
246 |
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247 |
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if (!*s) |
248 |
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return; |
249 |
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if (!midline++) { |
250 |
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fputs(progname, stderr); |
251 |
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fputs(": ", stderr); |
252 |
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} |
253 |
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fputs(s, stderr); |
254 |
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if (s[strlen(s)-1] == '\n') { |
255 |
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fflush(stderr); |
256 |
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midline = 0; |
257 |
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} |
258 |
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} |
259 |
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260 |
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261 |
schorsch |
2.4 |
static void |
262 |
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onsig( /* fatal signal */ |
263 |
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int signo |
264 |
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) |
265 |
greg |
2.1 |
{ |
266 |
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static int gotsig = 0; |
267 |
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268 |
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if (gotsig++) /* two signals and we're gone! */ |
269 |
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_exit(signo); |
270 |
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271 |
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alarm(15); /* allow 15 seconds to clean up */ |
272 |
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signal(SIGALRM, SIG_DFL); /* make certain we do die */ |
273 |
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eputs("signal - "); |
274 |
|
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eputs(sigerr[signo]); |
275 |
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eputs("\n"); |
276 |
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quit(3); |
277 |
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} |
278 |
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279 |
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|
280 |
schorsch |
2.4 |
static void |
281 |
|
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sigdie( /* set fatal signal */ |
282 |
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int signo, |
283 |
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char *msg |
284 |
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) |
285 |
greg |
2.1 |
{ |
286 |
|
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if (signal(signo, onsig) == SIG_IGN) |
287 |
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signal(signo, SIG_IGN); |
288 |
|
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sigerr[signo] = msg; |
289 |
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} |
290 |
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291 |
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|
292 |
schorsch |
2.4 |
static void |
293 |
|
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printdefaults(void) /* print default values to stdout */ |
294 |
greg |
2.1 |
{ |
295 |
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printf(greyscale ? "-b+\t\t\t\t# greyscale on\n" : |
296 |
|
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"-b-\t\t\t\t# greyscale off\n"); |
297 |
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printf("-vt%c\t\t\t\t# view type %s\n", ourview.type, |
298 |
|
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ourview.type==VT_PER ? "perspective" : |
299 |
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ourview.type==VT_PAR ? "parallel" : |
300 |
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ourview.type==VT_HEM ? "hemispherical" : |
301 |
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ourview.type==VT_ANG ? "angular" : |
302 |
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ourview.type==VT_CYL ? "cylindrical" : |
303 |
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"unknown"); |
304 |
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printf("-vp %f %f %f\t# view point\n", |
305 |
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ourview.vp[0], ourview.vp[1], ourview.vp[2]); |
306 |
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printf("-vd %f %f %f\t# view direction\n", |
307 |
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ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]); |
308 |
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printf("-vu %f %f %f\t# view up\n", |
309 |
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ourview.vup[0], ourview.vup[1], ourview.vup[2]); |
310 |
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printf("-vh %f\t\t\t# view horizontal size\n", ourview.horiz); |
311 |
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printf("-vv %f\t\t\t# view vertical size\n", ourview.vert); |
312 |
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printf("-vo %f\t\t\t# view fore clipping plane\n", ourview.vfore); |
313 |
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printf("-va %f\t\t\t# view aft clipping plane\n", ourview.vaft); |
314 |
|
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printf("-vs %f\t\t\t# view shift\n", ourview.hoff); |
315 |
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printf("-vl %f\t\t\t# view lift\n", ourview.voff); |
316 |
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printf("-pe %f\t\t\t# pixel exposure\n", exposure); |
317 |
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printf("-ps %-9d\t\t\t# pixel sample\n", psample); |
318 |
|
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printf("-pt %f\t\t\t# pixel threshold\n", maxdiff); |
319 |
|
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printf("-o %s\t\t\t\t# output device\n", dvcname); |
320 |
|
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printf(erract[WARNING].pf != NULL ? |
321 |
|
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"-w+\t\t\t\t# warning messages on\n" : |
322 |
|
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"-w-\t\t\t\t# warning messages off\n"); |
323 |
|
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print_rdefaults(); |
324 |
|
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} |