1 |
< |
/* Copyright (c) 1989 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1992 Regents of the University of California */ |
2 |
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|
3 |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ LBL"; |
10 |
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* 1/4/89 |
11 |
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*/ |
12 |
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|
13 |
< |
#include <stdio.h> |
13 |
> |
#include "standard.h" |
14 |
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|
15 |
– |
#include <errno.h> |
16 |
– |
|
15 |
|
#include "color.h" |
16 |
|
|
17 |
+ |
#include "resolu.h" |
18 |
+ |
|
19 |
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#include "calcomp.h" |
20 |
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|
21 |
+ |
#include "view.h" |
22 |
+ |
|
23 |
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#define MAXINP 32 /* maximum number of input files */ |
24 |
+ |
#define WINSIZ 17 /* scanline window size */ |
25 |
+ |
#define MIDSCN ((WINSIZ-1)/2+1) |
26 |
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|
27 |
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struct { |
28 |
< |
char *name; /* file name */ |
28 |
> |
char *name; /* file or command name */ |
29 |
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FILE *fp; /* stream pointer */ |
30 |
< |
COLOR *scan; /* input scanline */ |
30 |
> |
VIEW vw; /* view for picture */ |
31 |
> |
RESOLU rs; /* image resolution and orientation */ |
32 |
> |
COLOR *scan[WINSIZ]; /* input scanline window */ |
33 |
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COLOR coef; /* coefficient */ |
34 |
+ |
COLOR expos; /* recorded exposure */ |
35 |
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} input[MAXINP]; /* input pictures */ |
36 |
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|
37 |
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int nfiles; /* number of input files */ |
38 |
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|
39 |
< |
char *vcolin[3] = {"ri", "gi", "bi"}; |
33 |
< |
char *vcolout[3] = {"ro", "go", "bo"}; |
39 |
> |
char ourfmt[LPICFMT+1] = PICFMT; /* input picture format */ |
40 |
|
|
41 |
< |
#define vxpos "x" |
42 |
< |
#define vypos "y" |
41 |
> |
char Command[] = "<Command>"; |
42 |
> |
char vcolin[3][4] = {"ri", "gi", "bi"}; |
43 |
> |
char vcolout[3][4] = {"ro", "go", "bo"}; |
44 |
> |
char vbrtin[] = "li"; |
45 |
> |
char vbrtout[] = "lo"; |
46 |
> |
char vcolexp[3][4] = {"re", "ge", "be"}; |
47 |
> |
char vbrtexp[] = "le"; |
48 |
|
|
49 |
+ |
char vray[6][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz"}; |
50 |
+ |
|
51 |
+ |
char vnfiles[] = "nfiles"; |
52 |
+ |
char vxmax[] = "xmax"; |
53 |
+ |
char vymax[] = "ymax"; |
54 |
+ |
char vxres[] = "xres"; |
55 |
+ |
char vyres[] = "yres"; |
56 |
+ |
char vxpos[] = "x"; |
57 |
+ |
char vypos[] = "y"; |
58 |
+ |
|
59 |
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int nowarn = 0; /* no warning messages? */ |
60 |
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|
61 |
< |
int xres=0, yres=0; /* picture resolution */ |
61 |
> |
int xmax = 0, ymax = 0; /* input resolution */ |
62 |
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|
63 |
< |
int xpos, ypos; /* picture position */ |
63 |
> |
int xscan, yscan; /* input position */ |
64 |
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|
65 |
+ |
int xres, yres; /* output resolution */ |
66 |
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|
67 |
< |
tputs(s) /* put out string preceded by a tab */ |
46 |
< |
char *s; |
47 |
< |
{ |
48 |
< |
putchar('\t'); |
49 |
< |
fputs(s, stdout); |
50 |
< |
} |
67 |
> |
int xpos, ypos; /* output position */ |
68 |
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|
69 |
+ |
char *progname; /* global argv[0] */ |
70 |
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|
71 |
+ |
int wrongformat = 0; |
72 |
+ |
int gotview; |
73 |
+ |
|
74 |
+ |
FILE *popen(); |
75 |
+ |
|
76 |
+ |
extern char *emalloc(); |
77 |
+ |
|
78 |
+ |
|
79 |
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main(argc, argv) |
80 |
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int argc; |
81 |
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char *argv[]; |
82 |
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{ |
83 |
< |
extern double l_redin(), l_grnin(), l_bluin(), atof(); |
83 |
> |
int original; |
84 |
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double f; |
85 |
< |
int a; |
86 |
< |
|
87 |
< |
funset(vcolin[RED], 1, l_redin); |
88 |
< |
funset(vcolin[GRN], 1, l_grnin); |
89 |
< |
funset(vcolin[BLU], 1, l_bluin); |
90 |
< |
|
91 |
< |
for (a = 1; a < argc; a++) |
85 |
> |
int a, i; |
86 |
> |
#ifdef MSDOS |
87 |
> |
extern int _fmode; |
88 |
> |
_fmode = O_BINARY; |
89 |
> |
setmode(fileno(stdin), O_BINARY); |
90 |
> |
setmode(fileno(stdout), O_BINARY); |
91 |
> |
#endif |
92 |
> |
progname = argv[0]; |
93 |
> |
/* scan options */ |
94 |
> |
for (a = 1; a < argc; a++) { |
95 |
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if (argv[a][0] == '-') |
96 |
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switch (argv[a][1]) { |
68 |
– |
case '\0': |
69 |
– |
case 's': |
70 |
– |
case 'c': |
71 |
– |
goto getfiles; |
97 |
|
case 'x': |
73 |
– |
xres = atoi(argv[++a]); |
74 |
– |
break; |
98 |
|
case 'y': |
99 |
< |
yres = atoi(argv[++a]); |
100 |
< |
break; |
99 |
> |
a++; |
100 |
> |
continue; |
101 |
|
case 'w': |
102 |
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nowarn = !nowarn; |
103 |
< |
break; |
103 |
> |
continue; |
104 |
|
case 'f': |
82 |
– |
fcompile(argv[++a]); |
83 |
– |
break; |
105 |
|
case 'e': |
106 |
< |
scompile(argv[++a], NULL, 0); |
107 |
< |
break; |
87 |
< |
default: |
88 |
< |
goto usage; |
106 |
> |
a++; |
107 |
> |
continue; |
108 |
|
} |
109 |
< |
else |
110 |
< |
break; |
111 |
< |
getfiles: |
112 |
< |
for (nfiles = 0; nfiles < MAXINP; nfiles++) |
109 |
> |
break; |
110 |
> |
} |
111 |
> |
newheader("RADIANCE", stdout); /* start header */ |
112 |
> |
/* process files */ |
113 |
> |
for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
114 |
|
setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
115 |
+ |
setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
116 |
+ |
copystruct(&input[nfiles].vw, &stdview); |
117 |
+ |
} |
118 |
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nfiles = 0; |
119 |
+ |
original = 0; |
120 |
|
for ( ; a < argc; a++) { |
121 |
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if (nfiles >= MAXINP) { |
122 |
|
eputs(argv[0]); |
129 |
|
input[nfiles].name = "<stdin>"; |
130 |
|
input[nfiles].fp = stdin; |
131 |
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break; |
132 |
+ |
case 'o': |
133 |
+ |
original++; |
134 |
+ |
continue; |
135 |
|
case 's': |
136 |
|
f = atof(argv[++a]); |
137 |
|
scalecolor(input[nfiles].coef, f); |
145 |
|
goto usage; |
146 |
|
} |
147 |
|
else { |
148 |
< |
input[nfiles].name = argv[a]; |
149 |
< |
input[nfiles].fp = fopen(argv[a], "r"); |
148 |
> |
if (argv[a][0] == '!') { |
149 |
> |
input[nfiles].name = Command; |
150 |
> |
input[nfiles].fp = popen(argv[a]+1, "r"); |
151 |
> |
} else { |
152 |
> |
input[nfiles].name = argv[a]; |
153 |
> |
input[nfiles].fp = fopen(argv[a], "r"); |
154 |
> |
} |
155 |
|
if (input[nfiles].fp == NULL) { |
156 |
|
perror(argv[a]); |
157 |
|
quit(1); |
158 |
|
} |
159 |
|
} |
160 |
< |
fputs(input[nfiles].name, stdout); |
161 |
< |
fputs(":\n", stdout); |
162 |
< |
getheader(input[nfiles].fp, tputs); |
163 |
< |
if (fgetresolu(&xpos, &ypos, input[nfiles].fp) != |
164 |
< |
(YMAJOR|YDECR)) { |
165 |
< |
eputs(input[nfiles].name); |
166 |
< |
eputs(": bad picture size\n"); |
167 |
< |
quit(1); |
160 |
> |
checkfile(); |
161 |
> |
if (original) { |
162 |
> |
colval(input[nfiles].coef,RED) /= |
163 |
> |
colval(input[nfiles].expos,RED); |
164 |
> |
colval(input[nfiles].coef,GRN) /= |
165 |
> |
colval(input[nfiles].expos,GRN); |
166 |
> |
colval(input[nfiles].coef,BLU) /= |
167 |
> |
colval(input[nfiles].expos,BLU); |
168 |
|
} |
137 |
– |
if (xres == 0 && yres == 0) { |
138 |
– |
xres = xpos; |
139 |
– |
yres = ypos; |
140 |
– |
} else if (xpos != xres || ypos != yres) { |
141 |
– |
eputs(argv[0]); |
142 |
– |
eputs(": resolution mismatch\n"); |
143 |
– |
quit(1); |
144 |
– |
} |
145 |
– |
input[nfiles].scan = (COLOR *)emalloc(xres*sizeof(COLOR)); |
169 |
|
nfiles++; |
170 |
+ |
original = 0; |
171 |
|
} |
172 |
+ |
init(); /* set constants */ |
173 |
+ |
/* go back and get expressions */ |
174 |
+ |
for (a = 1; a < argc; a++) { |
175 |
+ |
if (argv[a][0] == '-') |
176 |
+ |
switch (argv[a][1]) { |
177 |
+ |
case 'x': |
178 |
+ |
varset(vxres, ':', eval(argv[++a])); |
179 |
+ |
continue; |
180 |
+ |
case 'y': |
181 |
+ |
varset(vyres, ':', eval(argv[++a])); |
182 |
+ |
continue; |
183 |
+ |
case 'w': |
184 |
+ |
continue; |
185 |
+ |
case 'f': |
186 |
+ |
fcompile(argv[++a]); |
187 |
+ |
continue; |
188 |
+ |
case 'e': |
189 |
+ |
scompile(argv[++a], NULL, 0); |
190 |
+ |
continue; |
191 |
+ |
} |
192 |
+ |
break; |
193 |
+ |
} |
194 |
+ |
/* set/get output resolution */ |
195 |
+ |
if (!vardefined(vxres)) |
196 |
+ |
varset(vxres, ':', (double)xmax); |
197 |
+ |
if (!vardefined(vyres)) |
198 |
+ |
varset(vyres, ':', (double)ymax); |
199 |
+ |
xres = varvalue(vxres) + .5; |
200 |
+ |
yres = varvalue(vyres) + .5; |
201 |
+ |
if (xres <= 0 || yres <= 0) { |
202 |
+ |
eputs(argv[0]); |
203 |
+ |
eputs(": illegal output resolution\n"); |
204 |
+ |
quit(1); |
205 |
+ |
} |
206 |
+ |
/* complete header */ |
207 |
|
printargs(argc, argv, stdout); |
208 |
+ |
if (strcmp(ourfmt, PICFMT)) |
209 |
+ |
fputformat(ourfmt, stdout); /* print format if known */ |
210 |
|
putchar('\n'); |
211 |
< |
fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
211 |
> |
fprtresolu(xres, yres, stdout); |
212 |
> |
/* combine pictures */ |
213 |
|
combine(); |
214 |
|
quit(0); |
215 |
|
usage: |
216 |
|
eputs("Usage: "); |
217 |
|
eputs(argv[0]); |
218 |
< |
eputs(" [-w][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] picture ..]\n"); |
218 |
> |
eputs( |
219 |
> |
" [-w][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] pic ..]\n"); |
220 |
|
quit(1); |
221 |
|
} |
222 |
|
|
223 |
|
|
224 |
+ |
tputs(s) /* put out string preceded by a tab */ |
225 |
+ |
char *s; |
226 |
+ |
{ |
227 |
+ |
char fmt[32]; |
228 |
+ |
double d; |
229 |
+ |
COLOR ctmp; |
230 |
+ |
|
231 |
+ |
if (isheadid(s)) /* header id */ |
232 |
+ |
return; /* don't echo */ |
233 |
+ |
if (formatval(fmt, s)) { /* check format */ |
234 |
+ |
if (globmatch(ourfmt, fmt)) { |
235 |
+ |
wrongformat = 0; |
236 |
+ |
strcpy(ourfmt, fmt); |
237 |
+ |
} else |
238 |
+ |
wrongformat = 1; |
239 |
+ |
return; /* don't echo */ |
240 |
+ |
} |
241 |
+ |
if (isexpos(s)) { /* exposure */ |
242 |
+ |
d = exposval(s); |
243 |
+ |
scalecolor(input[nfiles].expos, d); |
244 |
+ |
} else if (iscolcor(s)) { /* color correction */ |
245 |
+ |
colcorval(ctmp, s); |
246 |
+ |
multcolor(input[nfiles].expos, ctmp); |
247 |
+ |
} else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
248 |
+ |
gotview++; |
249 |
+ |
/* echo line */ |
250 |
+ |
putchar('\t'); |
251 |
+ |
fputs(s, stdout); |
252 |
+ |
} |
253 |
+ |
|
254 |
+ |
|
255 |
+ |
checkfile() /* ready a file */ |
256 |
+ |
{ |
257 |
+ |
register int i; |
258 |
+ |
/* process header */ |
259 |
+ |
gotview = 0; |
260 |
+ |
fputs(input[nfiles].name, stdout); |
261 |
+ |
fputs(":\n", stdout); |
262 |
+ |
getheader(input[nfiles].fp, tputs, NULL); |
263 |
+ |
if (wrongformat) { |
264 |
+ |
eputs(input[nfiles].name); |
265 |
+ |
eputs(": not in Radiance picture format\n"); |
266 |
+ |
quit(1); |
267 |
+ |
} |
268 |
+ |
if (!gotview || setview(&input[nfiles].vw) != NULL) |
269 |
+ |
input[nfiles].vw.type = 0; |
270 |
+ |
if (!fgetsresolu(&input[nfiles].rs, input[nfiles].fp)) { |
271 |
+ |
eputs(input[nfiles].name); |
272 |
+ |
eputs(": bad picture size\n"); |
273 |
+ |
quit(1); |
274 |
+ |
} |
275 |
+ |
if (xmax == 0 && ymax == 0) { |
276 |
+ |
xmax = scanlen(&input[nfiles].rs); |
277 |
+ |
ymax = numscans(&input[nfiles].rs); |
278 |
+ |
} else if (scanlen(&input[nfiles].rs) != xmax || |
279 |
+ |
numscans(&input[nfiles].rs) != ymax) { |
280 |
+ |
eputs(input[nfiles].name); |
281 |
+ |
eputs(": resolution mismatch\n"); |
282 |
+ |
quit(1); |
283 |
+ |
} |
284 |
+ |
/* allocate scanlines */ |
285 |
+ |
for (i = 0; i < WINSIZ; i++) |
286 |
+ |
input[nfiles].scan[i] = (COLOR *)emalloc(xmax*sizeof(COLOR)); |
287 |
+ |
} |
288 |
+ |
|
289 |
+ |
|
290 |
+ |
double |
291 |
+ |
rgb_bright(clr) |
292 |
+ |
COLOR clr; |
293 |
+ |
{ |
294 |
+ |
return(bright(clr)); |
295 |
+ |
} |
296 |
+ |
|
297 |
+ |
|
298 |
+ |
double |
299 |
+ |
xyz_bright(clr) |
300 |
+ |
COLOR clr; |
301 |
+ |
{ |
302 |
+ |
return(clr[CIEY]); |
303 |
+ |
} |
304 |
+ |
|
305 |
+ |
|
306 |
+ |
double (*ourbright)() = rgb_bright; |
307 |
+ |
|
308 |
+ |
|
309 |
+ |
init() /* perform final setup */ |
310 |
+ |
{ |
311 |
+ |
double l_colin(), l_expos(), l_ray(); |
312 |
+ |
register int i; |
313 |
+ |
/* define constants */ |
314 |
+ |
varset(vnfiles, ':', (double)nfiles); |
315 |
+ |
varset(vxmax, ':', (double)xmax); |
316 |
+ |
varset(vymax, ':', (double)ymax); |
317 |
+ |
/* set functions */ |
318 |
+ |
for (i = 0; i < 3; i++) { |
319 |
+ |
funset(vcolexp[i], 1, ':', l_expos); |
320 |
+ |
funset(vcolin[i], 1, '=', l_colin); |
321 |
+ |
} |
322 |
+ |
funset(vbrtexp, 1, ':', l_expos); |
323 |
+ |
funset(vbrtin, 1, '=', l_colin); |
324 |
+ |
for (i = 0; i < 6; i++) |
325 |
+ |
funset(vray[i], 1, '=', l_ray); |
326 |
+ |
/* set brightness function */ |
327 |
+ |
if (!strcmp(ourfmt, CIEFMT)) |
328 |
+ |
ourbright = xyz_bright; |
329 |
+ |
} |
330 |
+ |
|
331 |
+ |
|
332 |
|
combine() /* combine pictures */ |
333 |
|
{ |
334 |
< |
EPNODE *coldef[3]; |
334 |
> |
EPNODE *coldef[3], *brtdef; |
335 |
|
COLOR *scanout; |
336 |
+ |
double d; |
337 |
|
register int i, j; |
338 |
|
/* check defined variables */ |
339 |
|
for (j = 0; j < 3; j++) { |
342 |
|
else |
343 |
|
coldef[j] = NULL; |
344 |
|
} |
345 |
+ |
if (vardefined(vbrtout)) |
346 |
+ |
brtdef = eparse(vbrtout); |
347 |
+ |
else |
348 |
+ |
brtdef = NULL; |
349 |
|
/* allocate scanline */ |
350 |
|
scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
351 |
+ |
/* set input position */ |
352 |
+ |
yscan = ymax+MIDSCN; |
353 |
|
/* combine files */ |
354 |
|
for (ypos = yres-1; ypos >= 0; ypos--) { |
355 |
< |
for (i = 0; i < nfiles; i++) |
356 |
< |
if (freadscan(input[i].scan, xres, input[i].fp) < 0) { |
357 |
< |
eputs(input[i].name); |
358 |
< |
eputs(": read error\n"); |
359 |
< |
quit(1); |
355 |
> |
advance(); |
356 |
> |
varset(vypos, '=', (double)ypos); |
357 |
> |
for (xpos = 0; xpos < xres; xpos++) { |
358 |
> |
xscan = (long)xpos*xmax/xres; |
359 |
> |
varset(vxpos, '=', (double)xpos); |
360 |
> |
eclock++; |
361 |
> |
if (brtdef != NULL) { |
362 |
> |
d = evalue(brtdef); |
363 |
> |
if (d < 0.0) |
364 |
> |
d = 0.0; |
365 |
> |
setcolor(scanout[xpos], d, d, d); |
366 |
> |
} else { |
367 |
> |
for (j = 0; j < 3; j++) { |
368 |
> |
if (coldef[j] != NULL) { |
369 |
> |
d = evalue(coldef[j]); |
370 |
> |
} else { |
371 |
> |
d = 0.0; |
372 |
> |
for (i = 0; i < nfiles; i++) |
373 |
> |
d += colval(input[i].scan[MIDSCN][xscan],j); |
374 |
|
} |
375 |
< |
varset(vypos, (double)ypos); |
376 |
< |
for (xpos = 0; xpos < xres; xpos++) { |
377 |
< |
varset(vxpos, (double)xpos); |
378 |
< |
eclock++; |
187 |
< |
for (j = 0; j < 3; j++) { |
188 |
< |
if (coldef[j] != NULL) { |
189 |
< |
colval(scanout[xpos],j) = |
190 |
< |
evalue(coldef[j]); |
191 |
< |
} else { |
192 |
< |
colval(scanout[xpos],j) = 0.0; |
193 |
< |
for (i = 0; i < nfiles; i++) |
194 |
< |
colval(scanout[xpos],j) += |
195 |
< |
colval(input[i].coef,j) * |
196 |
< |
colval(input[i].scan[xpos],j); |
197 |
< |
} |
198 |
< |
if (colval(scanout[xpos],j) < 0.0) |
199 |
< |
colval(scanout[xpos],j) = 0.0; |
200 |
< |
} |
375 |
> |
if (d < 0.0) |
376 |
> |
d = 0.0; |
377 |
> |
colval(scanout[xpos],j) = d; |
378 |
> |
} |
379 |
|
} |
380 |
< |
if (fwritescan(scanout, xres, stdout) < 0) { |
381 |
< |
perror("write error"); |
382 |
< |
quit(1); |
383 |
< |
} |
380 |
> |
} |
381 |
> |
if (fwritescan(scanout, xres, stdout) < 0) { |
382 |
> |
perror("write error"); |
383 |
> |
quit(1); |
384 |
> |
} |
385 |
|
} |
386 |
|
efree(scanout); |
387 |
|
} |
388 |
|
|
389 |
|
|
390 |
< |
double |
212 |
< |
colin(fn, ci) /* return color value for picture */ |
213 |
< |
register int fn, ci; |
390 |
> |
advance() /* read in data for next scanline */ |
391 |
|
{ |
392 |
< |
if (fn == 0) |
393 |
< |
return((double)nfiles); |
394 |
< |
if (fn < 1 || fn > nfiles) { |
395 |
< |
errno = EDOM; |
396 |
< |
return(0.0); |
397 |
< |
} |
398 |
< |
return(colval(input[fn-1].scan[xpos],ci)); |
392 |
> |
int ytarget; |
393 |
> |
register COLOR *st; |
394 |
> |
register int i, j; |
395 |
> |
|
396 |
> |
for (ytarget = (long)ypos*ymax/yres; yscan > ytarget; yscan--) |
397 |
> |
for (i = 0; i < nfiles; i++) { |
398 |
> |
st = input[i].scan[WINSIZ-1]; |
399 |
> |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
400 |
> |
input[i].scan[j] = input[i].scan[j-1]; |
401 |
> |
input[i].scan[0] = st; |
402 |
> |
if (yscan <= MIDSCN) /* hit bottom? */ |
403 |
> |
continue; |
404 |
> |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
405 |
> |
eputs(input[i].name); |
406 |
> |
eputs(": read error\n"); |
407 |
> |
quit(1); |
408 |
> |
} |
409 |
> |
if (fabs(colval(input[i].coef,RED)-1.0) > 1e-3 || |
410 |
> |
fabs(colval(input[i].coef,GRN)-1.0) > 1e-3 || |
411 |
> |
fabs(colval(input[i].coef,BLU)-1.0) > 1e-3) |
412 |
> |
for (j = 0; j < xmax; j++) /* adjust color */ |
413 |
> |
multcolor(st[j], input[i].coef); |
414 |
> |
} |
415 |
|
} |
416 |
|
|
417 |
|
|
418 |
|
double |
419 |
< |
l_redin() /* get red color */ |
419 |
> |
l_expos(nam) /* return picture exposure */ |
420 |
> |
register char *nam; |
421 |
|
{ |
422 |
< |
return(colin((int)(argument(1)+.5), RED)); |
422 |
> |
register int fn, n; |
423 |
> |
|
424 |
> |
fn = argument(1) - .5; |
425 |
> |
if (fn < 0 || fn >= nfiles) |
426 |
> |
return(1.0); |
427 |
> |
if (nam == vbrtexp) |
428 |
> |
return((*ourbright)(input[fn].expos)); |
429 |
> |
n = 3; |
430 |
> |
while (n--) |
431 |
> |
if (nam == vcolexp[n]) |
432 |
> |
return(colval(input[fn].expos,n)); |
433 |
> |
eputs("Bad call to l_expos()!\n"); |
434 |
> |
quit(1); |
435 |
|
} |
436 |
|
|
437 |
|
|
438 |
|
double |
439 |
< |
l_grnin() /* get green color */ |
439 |
> |
l_colin(nam) /* return color value for picture */ |
440 |
> |
register char *nam; |
441 |
|
{ |
442 |
< |
return(colin((int)(argument(1)+.5), GRN)); |
442 |
> |
int fn; |
443 |
> |
register int n, xoff, yoff; |
444 |
> |
double d; |
445 |
> |
|
446 |
> |
d = argument(1); |
447 |
> |
if (d > -.5 && d < .5) |
448 |
> |
return((double)nfiles); |
449 |
> |
fn = d - .5; |
450 |
> |
if (fn < 0 || fn >= nfiles) { |
451 |
> |
errno = EDOM; |
452 |
> |
return(0.0); |
453 |
> |
} |
454 |
> |
xoff = yoff = 0; |
455 |
> |
n = nargum(); |
456 |
> |
if (n >= 2) { |
457 |
> |
d = argument(2); |
458 |
> |
if (d < 0.0) { |
459 |
> |
xoff = d-.5; |
460 |
> |
if (xscan+xoff < 0) |
461 |
> |
xoff = -xscan; |
462 |
> |
} else { |
463 |
> |
xoff = d+.5; |
464 |
> |
if (xscan+xoff >= xmax) |
465 |
> |
xoff = xmax-1-xscan; |
466 |
> |
} |
467 |
> |
} |
468 |
> |
if (n >= 3) { |
469 |
> |
d = argument(3); |
470 |
> |
if (d < 0.0) { |
471 |
> |
yoff = d-.5; |
472 |
> |
if (yoff+MIDSCN < 0) |
473 |
> |
yoff = -MIDSCN; |
474 |
> |
if (yscan+yoff < 0) |
475 |
> |
yoff = -yscan; |
476 |
> |
} else { |
477 |
> |
yoff = d+.5; |
478 |
> |
if (yoff+MIDSCN >= WINSIZ) |
479 |
> |
yoff = WINSIZ-1-MIDSCN; |
480 |
> |
if (yscan+yoff >= ymax) |
481 |
> |
yoff = ymax-1-yscan; |
482 |
> |
} |
483 |
> |
} |
484 |
> |
if (nam == vbrtin) |
485 |
> |
return((*ourbright)(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
486 |
> |
n = 3; |
487 |
> |
while (n--) |
488 |
> |
if (nam == vcolin[n]) |
489 |
> |
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n)); |
490 |
> |
eputs("Bad call to l_colin()!\n"); |
491 |
> |
quit(1); |
492 |
|
} |
493 |
|
|
494 |
|
|
495 |
|
double |
496 |
< |
l_bluin() /* get blue color */ |
496 |
> |
l_ray(nam) /* return ray origin or direction */ |
497 |
> |
register char *nam; |
498 |
|
{ |
499 |
< |
return(colin((int)(argument(1)+.5), BLU)); |
499 |
> |
static unsigned long ltick[MAXINP]; |
500 |
> |
static FVECT lorg[MAXINP], ldir[MAXINP]; |
501 |
> |
FLOAT loc[2]; |
502 |
> |
double d; |
503 |
> |
int fn; |
504 |
> |
register int i; |
505 |
> |
|
506 |
> |
d = argument(1); |
507 |
> |
if (d > -.5 && d < .5) |
508 |
> |
return((double)nfiles); |
509 |
> |
fn = d - .5; |
510 |
> |
if (fn < 0 || fn >= nfiles) { |
511 |
> |
errno = EDOM; |
512 |
> |
return(0.0); |
513 |
> |
} |
514 |
> |
if (ltick[fn] < eclock) { /* need to compute? */ |
515 |
> |
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
516 |
> |
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
517 |
> |
if (input[fn].vw.type == 0) |
518 |
> |
errno = EDOM; |
519 |
> |
else { |
520 |
> |
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
521 |
> |
if (viewray(lorg[fn], ldir[fn], |
522 |
> |
&input[fn].vw, loc[0], loc[1]) < 0) |
523 |
> |
errno = ERANGE; |
524 |
> |
} |
525 |
> |
ltick[fn] = eclock; |
526 |
> |
} |
527 |
> |
i = 6; |
528 |
> |
while (i--) |
529 |
> |
if (nam == vray[i]) |
530 |
> |
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
531 |
> |
eputs("Bad call to l_ray()!\n"); |
532 |
> |
quit(1); |
533 |
|
} |
534 |
|
|
535 |
|
|
548 |
|
} |
549 |
|
|
550 |
|
|
551 |
< |
quit(code) |
552 |
< |
int code; |
551 |
> |
quit(code) /* exit gracefully */ |
552 |
> |
int code; |
553 |
|
{ |
554 |
+ |
register int i; |
555 |
+ |
/* close input files */ |
556 |
+ |
for (i = 0; i < nfiles; i++) |
557 |
+ |
if (input[i].name == Command) |
558 |
+ |
pclose(input[i].fp); |
559 |
+ |
else |
560 |
+ |
fclose(input[i].fp); |
561 |
|
exit(code); |
562 |
|
} |