1 |
greg |
1.1 |
/* Copyright (c) 1991 Regents of the University of California */ |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ LBL"; |
5 |
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#endif |
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7 |
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/* |
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* Make illum sources for optimizing rendering process |
9 |
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*/ |
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11 |
greg |
1.2 |
#include "mkillum.h" |
12 |
greg |
1.1 |
|
13 |
greg |
1.3 |
#include <signal.h> |
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15 |
greg |
1.2 |
#include <ctype.h> |
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greg |
1.1 |
|
17 |
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/* default parameters */ |
18 |
greg |
1.8 |
#define SAMPDENS 48 /* points per projected steradian */ |
19 |
greg |
1.1 |
#define NSAMPS 32 /* samples per point */ |
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#define DFLMAT "illum_mat" /* material name */ |
21 |
greg |
1.10 |
#define DFLDAT "illum" /* data file name */ |
22 |
greg |
1.1 |
/* selection options */ |
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#define S_NONE 0 /* select none */ |
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#define S_ELEM 1 /* select specified element */ |
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#define S_COMPL 2 /* select all but element */ |
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#define S_ALL 3 /* select all */ |
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28 |
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/* rtrace command and defaults */ |
29 |
greg |
1.4 |
char *rtargv[64] = { "rtrace", "-dj", ".25", "-dr", "3", "-di+", |
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"-ab", "2", "-ad", "256", "-as", "128", "-aa", ".15", }; |
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int rtargc = 14; |
32 |
greg |
1.1 |
/* overriding rtrace options */ |
33 |
greg |
1.4 |
char *myrtopts[] = { "-I-", "-i-", "-ov", "-h-", "-fff", NULL }; |
34 |
greg |
1.1 |
|
35 |
greg |
1.2 |
struct rtproc rt; /* our rtrace process */ |
36 |
greg |
1.1 |
|
37 |
greg |
1.2 |
struct illum_args thisillum = { /* our illum and default values */ |
38 |
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0, |
39 |
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DFLMAT, |
40 |
greg |
1.10 |
DFLDAT, |
41 |
greg |
1.2 |
0, |
42 |
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VOIDID, |
43 |
greg |
1.3 |
SAMPDENS, |
44 |
greg |
1.2 |
NSAMPS, |
45 |
greg |
1.12 |
0., |
46 |
greg |
1.2 |
}; |
47 |
greg |
1.1 |
|
48 |
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char matcheck[MAXSTR]; /* current material to include or exclude */ |
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int matselect = S_ALL; /* selection criterion */ |
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51 |
greg |
1.2 |
FUN ofun[NUMOTYPE] = INIT_OTYPE; /* object types */ |
52 |
greg |
1.1 |
|
53 |
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int gargc; /* global argc */ |
54 |
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char **gargv; /* global argv */ |
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#define progname gargv[0] |
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57 |
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int doneheader = 0; /* printed header yet? */ |
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greg |
1.2 |
#define checkhead() if (!doneheader++) printhead(gargc,gargv) |
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greg |
1.1 |
|
60 |
greg |
1.2 |
int warnings = 1; /* print warnings? */ |
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62 |
greg |
1.1 |
extern char *fgetline(), *fgetword(), *sskip(), |
63 |
greg |
1.6 |
*atos(), *iskip(), *fskip(), *strcpy(); |
64 |
greg |
1.1 |
extern FILE *popen(); |
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main(argc, argv) /* compute illum distributions using rtrace */ |
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int argc; |
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char *argv[]; |
70 |
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{ |
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extern char *getenv(), *getpath(); |
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char *rtpath; |
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greg |
1.3 |
FILE *fp; |
74 |
greg |
1.1 |
register int i; |
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/* set global arguments */ |
76 |
greg |
1.3 |
gargv = argv; |
77 |
greg |
1.1 |
/* set up rtrace command */ |
78 |
greg |
1.3 |
for (i = 1; i < argc; i++) { |
79 |
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if (argv[i][0] == '<' && !argv[i][1]) |
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break; |
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greg |
1.1 |
rtargv[rtargc++] = argv[i]; |
82 |
greg |
1.2 |
if (argv[i][0] == '-' && argv[i][1] == 'w') |
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warnings = !warnings; |
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} |
85 |
greg |
2.3 |
gargc = i; |
86 |
greg |
1.3 |
rtargc--; |
87 |
greg |
1.1 |
for (i = 0; myrtopts[i] != NULL; i++) |
88 |
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rtargv[rtargc++] = myrtopts[i]; |
89 |
greg |
1.3 |
rtargv[rtargc++] = argv[gargc-1]; |
90 |
greg |
1.1 |
rtargv[rtargc] = NULL; |
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/* just asking for defaults? */ |
92 |
greg |
1.3 |
if (!strcmp(argv[gargc-1], "-defaults")) { |
93 |
greg |
1.9 |
printopts(); fflush(stdout); |
94 |
greg |
1.1 |
rtpath = getpath(rtargv[0], getenv("PATH"), X_OK); |
95 |
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if (rtpath == NULL) { |
96 |
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eputs(rtargv[0]); |
97 |
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eputs(": command not found\n"); |
98 |
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exit(1); |
99 |
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} |
100 |
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execv(rtpath, rtargv); |
101 |
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perror(rtpath); |
102 |
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exit(1); |
103 |
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} |
104 |
greg |
2.3 |
if (gargc < 2 || argv[gargc-1][0] == '-') |
105 |
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error(USER, "missing octree argument"); |
106 |
greg |
1.1 |
/* else initialize and run our calculation */ |
107 |
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init(); |
108 |
greg |
1.3 |
if (gargc+1 < argc) |
109 |
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for (i = gargc+1; i < argc; i++) { |
110 |
greg |
1.5 |
if ((fp = fopen(argv[i], "r")) == NULL) { |
111 |
greg |
1.3 |
sprintf(errmsg, |
112 |
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"cannot open scene file \"%s\"", argv[i]); |
113 |
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error(SYSTEM, errmsg); |
114 |
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} |
115 |
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filter(fp, argv[i]); |
116 |
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fclose(fp); |
117 |
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} |
118 |
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else |
119 |
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filter(stdin, "standard input"); |
120 |
greg |
1.2 |
quit(0); |
121 |
greg |
1.1 |
} |
122 |
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123 |
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124 |
greg |
1.3 |
quit(status) /* exit with status */ |
125 |
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int status; |
126 |
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{ |
127 |
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int rtstat; |
128 |
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129 |
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rtstat = close_process(rt.pd); |
130 |
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if (status == 0) |
131 |
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if (rtstat < 0) |
132 |
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error(WARNING, |
133 |
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"unknown return status from rtrace process"); |
134 |
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else |
135 |
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status = rtstat; |
136 |
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exit(status); |
137 |
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} |
138 |
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139 |
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140 |
greg |
1.1 |
init() /* start rtrace and set up buffers */ |
141 |
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{ |
142 |
greg |
1.4 |
extern int o_face(), o_sphere(), o_ring(); |
143 |
greg |
1.1 |
int maxbytes; |
144 |
greg |
1.3 |
/* set up object functions */ |
145 |
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ofun[OBJ_FACE].funp = o_face; |
146 |
greg |
1.4 |
ofun[OBJ_SPHERE].funp = o_sphere; |
147 |
greg |
1.3 |
ofun[OBJ_RING].funp = o_ring; |
148 |
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/* set up signal handling */ |
149 |
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signal(SIGPIPE, quit); |
150 |
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/* start rtrace process */ |
151 |
greg |
1.14 |
errno = 0; |
152 |
greg |
1.2 |
maxbytes = open_process(rt.pd, rtargv); |
153 |
greg |
1.1 |
if (maxbytes == 0) { |
154 |
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eputs(rtargv[0]); |
155 |
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eputs(": command not found\n"); |
156 |
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exit(1); |
157 |
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} |
158 |
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if (maxbytes < 0) |
159 |
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error(SYSTEM, "cannot start rtrace process"); |
160 |
greg |
1.2 |
rt.bsiz = maxbytes/(6*sizeof(float)); |
161 |
greg |
1.4 |
rt.buf = (float *)malloc(6*sizeof(float)*rt.bsiz--); |
162 |
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rt.dest = (float **)malloc(sizeof(float *)*rt.bsiz); |
163 |
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if (rt.buf == NULL || rt.dest == NULL) |
164 |
greg |
1.1 |
error(SYSTEM, "out of memory in init"); |
165 |
greg |
1.2 |
rt.nrays = 0; |
166 |
greg |
1.6 |
/* set up urand */ |
167 |
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initurand(2048); |
168 |
greg |
1.1 |
} |
169 |
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170 |
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171 |
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eputs(s) /* put string to stderr */ |
172 |
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register char *s; |
173 |
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{ |
174 |
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static int midline = 0; |
175 |
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176 |
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if (!*s) return; |
177 |
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if (!midline) { |
178 |
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fputs(progname, stderr); |
179 |
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fputs(": ", stderr); |
180 |
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} |
181 |
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fputs(s, stderr); |
182 |
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midline = s[strlen(s)-1] != '\n'; |
183 |
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} |
184 |
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185 |
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186 |
greg |
1.2 |
wputs(s) /* print warning if enabled */ |
187 |
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char *s; |
188 |
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{ |
189 |
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if (warnings) |
190 |
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eputs(s); |
191 |
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} |
192 |
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193 |
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194 |
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filter(infp, name) /* process stream */ |
195 |
greg |
1.1 |
register FILE *infp; |
196 |
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char *name; |
197 |
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{ |
198 |
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char buf[512]; |
199 |
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FILE *pfp; |
200 |
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register int c; |
201 |
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202 |
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while ((c = getc(infp)) != EOF) { |
203 |
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if (isspace(c)) |
204 |
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continue; |
205 |
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if (c == '#') { /* comment/options */ |
206 |
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buf[0] = c; |
207 |
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fgets(buf+1, sizeof(buf)-1, infp); |
208 |
greg |
1.2 |
xoptions(buf, name); |
209 |
greg |
1.1 |
} else if (c == '!') { /* command */ |
210 |
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buf[0] = c; |
211 |
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fgetline(buf+1, sizeof(buf)-1, infp); |
212 |
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if ((pfp = popen(buf+1, "r")) == NULL) { |
213 |
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sprintf(errmsg, "cannot execute \"%s\"", buf); |
214 |
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error(SYSTEM, errmsg); |
215 |
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} |
216 |
greg |
1.2 |
filter(pfp, buf); |
217 |
greg |
1.1 |
pclose(pfp); |
218 |
|
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} else { /* object */ |
219 |
|
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ungetc(c, infp); |
220 |
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xobject(infp, name); |
221 |
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} |
222 |
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} |
223 |
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} |
224 |
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|
225 |
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|
226 |
greg |
1.2 |
xoptions(s, nm) /* process options in string s */ |
227 |
greg |
1.1 |
char *s; |
228 |
|
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char *nm; |
229 |
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{ |
230 |
|
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extern FILE *freopen(); |
231 |
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char buf[64]; |
232 |
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int nerrs = 0; |
233 |
|
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register char *cp; |
234 |
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|
235 |
greg |
1.2 |
if (strncmp(s, "#@mkillum", 9) || !isspace(s[9])) { |
236 |
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fputs(s, stdout); /* not for us */ |
237 |
greg |
1.1 |
return; |
238 |
greg |
1.2 |
} |
239 |
greg |
1.1 |
cp = s+10; |
240 |
|
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while (*cp) { |
241 |
|
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switch (*cp) { |
242 |
|
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case ' ': |
243 |
|
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case '\t': |
244 |
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case '\n': |
245 |
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cp++; |
246 |
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continue; |
247 |
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case 'm': /* material name */ |
248 |
greg |
1.2 |
if (*++cp != '=') |
249 |
greg |
1.1 |
break; |
250 |
greg |
1.2 |
if (!*++cp) |
251 |
|
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break; |
252 |
greg |
1.1 |
atos(thisillum.matname, MAXSTR, cp); |
253 |
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cp = sskip(cp); |
254 |
|
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if (!(thisillum.flags & IL_DATCLB)) { |
255 |
|
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strcpy(thisillum.datafile, thisillum.matname); |
256 |
|
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thisillum.dfnum = 0; |
257 |
|
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} |
258 |
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continue; |
259 |
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case 'f': /* data file name */ |
260 |
greg |
1.2 |
if (*++cp != '=') |
261 |
greg |
1.1 |
break; |
262 |
greg |
1.2 |
if (!*++cp) { |
263 |
greg |
1.6 |
strcpy(thisillum.datafile,thisillum.matname); |
264 |
greg |
1.10 |
thisillum.dfnum = 0; |
265 |
greg |
1.1 |
thisillum.flags &= ~IL_DATCLB; |
266 |
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continue; |
267 |
|
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} |
268 |
|
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atos(thisillum.datafile, MAXSTR, cp); |
269 |
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cp = sskip(cp); |
270 |
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thisillum.dfnum = 0; |
271 |
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thisillum.flags |= IL_DATCLB; |
272 |
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continue; |
273 |
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case 'i': /* include material */ |
274 |
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case 'e': /* exclude material */ |
275 |
greg |
1.6 |
if (cp[1] != '=') |
276 |
greg |
1.1 |
break; |
277 |
greg |
1.7 |
matselect = (*cp == 'i') ? S_ELEM : S_COMPL; |
278 |
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cp += 2; |
279 |
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atos(matcheck, MAXSTR, cp); |
280 |
greg |
1.1 |
cp = sskip(cp); |
281 |
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continue; |
282 |
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case 'a': /* use everything */ |
283 |
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cp = sskip(cp); |
284 |
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matselect = S_ALL; |
285 |
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continue; |
286 |
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case 'n': /* use nothing (passive) */ |
287 |
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cp = sskip(cp); |
288 |
|
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matselect = S_NONE; |
289 |
|
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continue; |
290 |
|
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case 'c': /* color calculation */ |
291 |
greg |
1.2 |
if (*++cp != '=') |
292 |
greg |
1.1 |
break; |
293 |
greg |
1.2 |
switch (*++cp) { |
294 |
greg |
1.1 |
case 'a': /* average */ |
295 |
greg |
1.6 |
thisillum.flags = (thisillum.flags|IL_COLAVG) |
296 |
|
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& ~IL_COLDST; |
297 |
greg |
1.1 |
break; |
298 |
|
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case 'd': /* distribution */ |
299 |
greg |
1.5 |
thisillum.flags |= (IL_COLDST|IL_COLAVG); |
300 |
greg |
1.1 |
break; |
301 |
|
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case 'n': /* none */ |
302 |
|
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thisillum.flags &= ~(IL_COLAVG|IL_COLDST); |
303 |
|
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break; |
304 |
|
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default: |
305 |
|
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goto opterr; |
306 |
|
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} |
307 |
|
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cp = sskip(cp); |
308 |
|
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continue; |
309 |
|
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case 'd': /* point sample density */ |
310 |
greg |
1.2 |
if (*++cp != '=') |
311 |
greg |
1.1 |
break; |
312 |
greg |
1.2 |
if (!isintd(++cp, " \t\n")) |
313 |
greg |
1.1 |
break; |
314 |
greg |
1.3 |
thisillum.sampdens = atoi(cp); |
315 |
greg |
1.1 |
cp = sskip(cp); |
316 |
|
|
continue; |
317 |
|
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case 's': /* point super-samples */ |
318 |
greg |
1.2 |
if (*++cp != '=') |
319 |
greg |
1.1 |
break; |
320 |
greg |
1.2 |
if (!isintd(++cp, " \t\n")) |
321 |
greg |
1.1 |
break; |
322 |
|
|
thisillum.nsamps = atoi(cp); |
323 |
|
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cp = sskip(cp); |
324 |
|
|
continue; |
325 |
greg |
1.3 |
case 'l': /* light sources */ |
326 |
greg |
1.4 |
cp++; |
327 |
|
|
if (*cp == '+') |
328 |
greg |
1.3 |
thisillum.flags |= IL_LIGHT; |
329 |
greg |
1.4 |
else if (*cp == '-') |
330 |
|
|
thisillum.flags &= ~IL_LIGHT; |
331 |
greg |
1.3 |
else |
332 |
greg |
1.4 |
break; |
333 |
|
|
cp++; |
334 |
greg |
1.3 |
continue; |
335 |
greg |
1.12 |
case 'b': /* brightness */ |
336 |
|
|
if (*++cp != '=') |
337 |
|
|
break; |
338 |
|
|
if (!isfltd(++cp, " \t\n")) |
339 |
|
|
break; |
340 |
|
|
thisillum.minbrt = atof(cp); |
341 |
greg |
1.13 |
if (thisillum.minbrt < 0.) |
342 |
|
|
thisillum.minbrt = 0.; |
343 |
greg |
1.12 |
cp = sskip(cp); |
344 |
|
|
continue; |
345 |
greg |
1.1 |
case 'o': /* output file */ |
346 |
greg |
1.2 |
if (*++cp != '=') |
347 |
greg |
1.1 |
break; |
348 |
greg |
1.2 |
if (!*++cp) |
349 |
|
|
break; |
350 |
greg |
1.1 |
atos(buf, sizeof(buf), cp); |
351 |
|
|
cp = sskip(cp); |
352 |
|
|
if (freopen(buf, "w", stdout) == NULL) { |
353 |
|
|
sprintf(errmsg, |
354 |
|
|
"cannot open output file \"%s\"", buf); |
355 |
|
|
error(SYSTEM, errmsg); |
356 |
|
|
} |
357 |
|
|
doneheader = 0; |
358 |
|
|
continue; |
359 |
greg |
1.6 |
case '!': /* processed file! */ |
360 |
greg |
1.7 |
sprintf(errmsg, "(%s): already processed!", nm); |
361 |
greg |
1.6 |
error(WARNING, errmsg); |
362 |
greg |
1.7 |
matselect = S_NONE; |
363 |
greg |
1.6 |
return; |
364 |
greg |
1.1 |
} |
365 |
|
|
opterr: /* skip faulty option */ |
366 |
|
|
cp = sskip(cp); |
367 |
|
|
nerrs++; |
368 |
|
|
} |
369 |
greg |
1.2 |
/* print header? */ |
370 |
|
|
checkhead(); |
371 |
|
|
/* issue warnings? */ |
372 |
greg |
1.1 |
if (nerrs) { |
373 |
|
|
sprintf(errmsg, "(%s): %d error(s) in option line:", |
374 |
|
|
nm, nerrs); |
375 |
|
|
error(WARNING, errmsg); |
376 |
greg |
1.2 |
wputs(s); |
377 |
|
|
printf("# %s: the following option line has %d error(s):\n", |
378 |
|
|
progname, nerrs); |
379 |
greg |
1.1 |
} |
380 |
greg |
1.2 |
/* print pure comment */ |
381 |
greg |
1.4 |
printf("# %s", s+2); |
382 |
greg |
1.9 |
} |
383 |
|
|
|
384 |
|
|
|
385 |
|
|
printopts() /* print out option default values */ |
386 |
|
|
{ |
387 |
greg |
1.11 |
printf("m=%-15s\t\t# material name\n", thisillum.matname); |
388 |
|
|
printf("f=%-15s\t\t# data file name\n", thisillum.datafile); |
389 |
greg |
2.2 |
if (thisillum.flags & IL_COLAVG) |
390 |
|
|
if (thisillum.flags & IL_COLDST) |
391 |
|
|
printf("c=d\t\t\t\t# color distribution\n"); |
392 |
|
|
else |
393 |
|
|
printf("c=a\t\t\t\t# color average\n"); |
394 |
|
|
else |
395 |
|
|
printf("c=n\t\t\t\t# color none\n"); |
396 |
|
|
if (thisillum.flags & IL_LIGHT) |
397 |
|
|
printf("l+\t\t\t\t# light type on\n"); |
398 |
|
|
else |
399 |
|
|
printf("l-\t\t\t\t# light type off\n"); |
400 |
greg |
1.9 |
printf("d=%d\t\t\t\t# density of points\n", thisillum.sampdens); |
401 |
|
|
printf("s=%d\t\t\t\t# samples per point\n", thisillum.nsamps); |
402 |
greg |
1.12 |
printf("b=%f\t\t\t# minimum average brightness\n", thisillum.minbrt); |
403 |
greg |
1.1 |
} |
404 |
greg |
1.2 |
|
405 |
|
|
|
406 |
|
|
printhead(ac, av) /* print out header */ |
407 |
|
|
register int ac; |
408 |
|
|
register char **av; |
409 |
|
|
{ |
410 |
|
|
putchar('#'); |
411 |
|
|
while (ac-- > 0) { |
412 |
|
|
putchar(' '); |
413 |
|
|
fputs(*av++, stdout); |
414 |
|
|
} |
415 |
greg |
1.6 |
fputs("\n#@mkillum !\n", stdout); |
416 |
greg |
1.2 |
} |
417 |
|
|
|
418 |
|
|
|
419 |
|
|
xobject(fp, nm) /* translate an object from fp */ |
420 |
|
|
FILE *fp; |
421 |
|
|
char *nm; |
422 |
|
|
{ |
423 |
|
|
OBJREC thisobj; |
424 |
|
|
char str[MAXSTR]; |
425 |
|
|
int doit; |
426 |
|
|
/* read the object */ |
427 |
|
|
if (fgetword(thisillum.altmat, MAXSTR, fp) == NULL) |
428 |
|
|
goto readerr; |
429 |
|
|
if (fgetword(str, MAXSTR, fp) == NULL) |
430 |
|
|
goto readerr; |
431 |
|
|
/* is it an alias? */ |
432 |
|
|
if (!strcmp(str, ALIASID)) { |
433 |
|
|
if (fgetword(str, MAXSTR, fp) == NULL) |
434 |
|
|
goto readerr; |
435 |
|
|
printf("\n%s %s %s", thisillum.altmat, ALIASID, str); |
436 |
|
|
if (fgetword(str, MAXSTR, fp) == NULL) |
437 |
|
|
goto readerr; |
438 |
greg |
1.4 |
printf("\t%s\n", str); |
439 |
greg |
1.2 |
return; |
440 |
|
|
} |
441 |
greg |
1.4 |
thisobj.omod = OVOID; /* unused field */ |
442 |
greg |
1.2 |
if ((thisobj.otype = otype(str)) < 0) { |
443 |
|
|
sprintf(errmsg, "(%s): unknown type \"%s\"", nm, str); |
444 |
|
|
error(USER, errmsg); |
445 |
|
|
} |
446 |
|
|
if (fgetword(str, MAXSTR, fp) == NULL) |
447 |
|
|
goto readerr; |
448 |
|
|
thisobj.oname = str; |
449 |
|
|
if (readfargs(&thisobj.oargs, fp) != 1) |
450 |
|
|
goto readerr; |
451 |
|
|
thisobj.os = NULL; |
452 |
|
|
/* check for translation */ |
453 |
|
|
switch (matselect) { |
454 |
|
|
case S_NONE: |
455 |
|
|
doit = 0; |
456 |
|
|
break; |
457 |
|
|
case S_ALL: |
458 |
greg |
1.4 |
doit = 1; |
459 |
greg |
1.2 |
break; |
460 |
|
|
case S_ELEM: |
461 |
|
|
doit = !strcmp(thisillum.altmat, matcheck); |
462 |
|
|
break; |
463 |
|
|
case S_COMPL: |
464 |
|
|
doit = strcmp(thisillum.altmat, matcheck); |
465 |
|
|
break; |
466 |
|
|
} |
467 |
greg |
1.4 |
doit = doit && issurface(thisobj.otype); |
468 |
greg |
1.2 |
/* print header? */ |
469 |
|
|
checkhead(); |
470 |
|
|
/* process object */ |
471 |
|
|
if (doit) |
472 |
greg |
1.4 |
(*ofun[thisobj.otype].funp)(&thisobj, &thisillum, &rt, nm); |
473 |
greg |
1.2 |
else |
474 |
|
|
printobj(thisillum.altmat, &thisobj); |
475 |
|
|
/* free arguments */ |
476 |
|
|
freefargs(&thisobj.oargs); |
477 |
|
|
return; |
478 |
|
|
readerr: |
479 |
|
|
sprintf(errmsg, "(%s): error reading scene", nm); |
480 |
|
|
error(USER, errmsg); |
481 |
|
|
} |