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root/radiance/ray/src/px/pvalue.c
Revision: 2.39
Committed: Mon Mar 30 19:02:26 2020 UTC (4 years, 1 month ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.38: +18 -6 lines
Log Message:
Made output a little more compatible with matrix file types

File Contents

# Content
1 #ifndef lint
2 static const char RCSid[] = "$Id: pvalue.c,v 2.38 2020/02/06 19:33:32 greg Exp $";
3 #endif
4 /*
5 * pvalue.c - program to print pixel values.
6 *
7 * 4/23/86
8 */
9
10 #include "platform.h"
11 #include "standard.h"
12 #include "color.h"
13 #include "resolu.h"
14 #include "view.h"
15
16 #define min(a,b) ((a)<(b)?(a):(b))
17
18 /* what to put out (also RED, GRN, BLU) */
19 #define ALL 3
20 #define BRIGHT 4
21
22 RESOLU picres; /* resolution of picture */
23 int uniq = 0; /* print only unique values? */
24 int doexposure = 0; /* exposure change? (>100 to print) */
25 int dataonly = 0; /* data only format? */
26 int putprim = ALL; /* what to put out */
27 int reverse = 0; /* reverse conversion? */
28 int format = 'a'; /* input/output format */
29 char *fmtid = "ascii"; /* format identifier for header */
30 int header = 1; /* do header? */
31 long skipbytes = 0; /* skip bytes in input? */
32 int swapbytes = 0; /* swap bytes? */
33 int interleave = 1; /* file is interleaved? */
34 int resolution = 1; /* put/get resolution string? */
35 int original = 0; /* convert to original values? */
36 int wrongformat = 0; /* wrong input format? */
37 double gamcor = 1.0; /* gamma correction */
38
39 RGBPRIMP outprims = stdprims; /* output primaries for reverse conversion */
40 RGBPRIMS myprims;
41
42 int ord[3] = {RED, GRN, BLU}; /* RGB ordering */
43 int rord[4]; /* reverse ordering */
44
45 COLOR exposure = WHTCOLOR;
46
47 char *progname;
48
49 FILE *fin;
50 FILE *fin2 = NULL, *fin3 = NULL; /* for other color channels */
51
52
53 typedef int getfunc_t(COLOR col);
54 typedef int putfunc_t(COLOR col);
55 typedef double brightfunc_t(COLOR col);
56
57 getfunc_t *getval;
58 putfunc_t *putval;
59 brightfunc_t *mybright;
60
61 static gethfunc checkhead;
62 static brightfunc_t rgb_bright, xyz_bright;
63 static getfunc_t getbascii, getbint, getbdouble, getbfloat, getbbyte, getbword;
64 static getfunc_t getcascii, getcint, getcdouble, getcfloat, getcbyte, getcword;
65 static putfunc_t putbascii, putbint, putbdouble, putbfloat, putbbyte, putbword;
66 static putfunc_t putcascii, putcint, putcdouble, putcfloat, putcbyte, putcword;
67 static putfunc_t putpascii, putpint, putpdouble, putpfloat, putpbyte, putpword;
68
69 static void set_io(void);
70 static void pixtoval(void);
71 static void valtopix(void);
72
73
74 static double
75 rgb_bright(
76 COLOR clr
77 )
78 {
79 return(bright(clr));
80 }
81
82 static double
83 xyz_bright(
84 COLOR clr
85 )
86 {
87 return(clr[CIEY]);
88 }
89
90 int
91 main(
92 int argc,
93 char **argv
94 )
95 {
96 const char *inpmode = "r";
97 double d, expval = 1.0;
98 int i;
99
100 progname = argv[0];
101 mybright = &rgb_bright; /* default */
102
103 for (i = 1; i < argc; i++)
104 if (argv[i][0] == '-' || argv[i][0] == '+')
105 switch (argv[i][1]) {
106 case 'h': /* header */
107 header = argv[i][0] == '+';
108 break;
109 case 'H': /* resolution string */
110 resolution = argv[i][0] == '+';
111 break;
112 case 's': /* skip bytes in header */
113 skipbytes = atol(argv[++i]);
114 break;
115 case 'u': /* unique values */
116 uniq = argv[i][0] == '-';
117 break;
118 case 'o': /* original values */
119 original = argv[i][0] == '-';
120 break;
121 case 'g': /* gamma correction */
122 gamcor = atof(argv[i+1]);
123 if (argv[i][0] == '+')
124 gamcor = 1.0/gamcor;
125 i++;
126 break;
127 case 'e': /* exposure correction */
128 d = atof(argv[i+1]);
129 if (argv[i+1][0] == '-' || argv[i+1][0] == '+')
130 d = pow(2.0, d);
131 if (argv[i][0] == '-')
132 expval *= d;
133 scalecolor(exposure, d);
134 doexposure++;
135 i++;
136 break;
137 case 'R': /* reverse byte sequence */
138 if (argv[i][0] == '-') {
139 ord[0]=BLU; ord[1]=GRN; ord[2]=RED;
140 } else {
141 ord[0]=RED; ord[1]=GRN; ord[2]=BLU;
142 }
143 break;
144 case 'r': /* reverse conversion */
145 reverse = argv[i][0] == '-';
146 break;
147 case 'n': /* non-interleaved RGB */
148 interleave = argv[i][0] == '+';
149 break;
150 case 'b': /* brightness values */
151 putprim = argv[i][0] == '-' ? BRIGHT : ALL;
152 break;
153 case 'p': /* primary controls */
154 switch (argv[i][2]) {
155 /* these two options affect -r conversion */
156 case '\0':
157 myprims[RED][CIEX] = atof(argv[++i]);
158 myprims[RED][CIEY] = atof(argv[++i]);
159 myprims[GRN][CIEX] = atof(argv[++i]);
160 myprims[GRN][CIEY] = atof(argv[++i]);
161 myprims[BLU][CIEX] = atof(argv[++i]);
162 myprims[BLU][CIEY] = atof(argv[++i]);
163 myprims[WHT][CIEX] = atof(argv[++i]);
164 myprims[WHT][CIEY] = atof(argv[++i]);
165 outprims = myprims;
166 break;
167 case 'x': case 'X': outprims = NULL; break;
168 /* the following options affect +r only */
169 case 'r': case 'R': putprim = RED; break;
170 case 'g': case 'G': putprim = GRN; break;
171 case 'b': case 'B': putprim = BLU; break;
172 default: goto unkopt;
173 }
174 break;
175 case 'd': /* data only (no indices) */
176 dataonly = (argv[i][0] == '-');
177 switch (argv[i][2]) {
178 case '\0':
179 case 'a': /* ascii */
180 format = 'a';
181 fmtid = "ascii";
182 break;
183 case 'i': /* integer */
184 format = 'i';
185 fmtid = "ascii";
186 break;
187 case 'b': /* byte */
188 dataonly = 1;
189 format = 'b';
190 fmtid = "byte";
191 break;
192 case 'W': /* 16-bit swapped */
193 swapbytes = 1;
194 case 'w': /* 16-bit */
195 dataonly = 1;
196 format = 'w';
197 fmtid = "16-bit";
198 break;
199 case 'F': /* swapped floats */
200 swapbytes = 1;
201 case 'f': /* float */
202 dataonly = 1;
203 format = 'f';
204 fmtid = "float";
205 break;
206 case 'D': /* swapped doubles */
207 swapbytes = 1;
208 case 'd': /* double */
209 dataonly = 1;
210 format = 'd';
211 fmtid = "double";
212 break;
213 default:
214 goto unkopt;
215 }
216 break;
217 case 'x': /* x resolution */
218 case 'X': /* x resolution */
219 resolution = 0;
220 if (argv[i][0] == '-')
221 picres.rt |= XDECR;
222 picres.xr = atoi(argv[++i]);
223 break;
224 case 'y': /* y resolution */
225 case 'Y': /* y resolution */
226 resolution = 0;
227 if (argv[i][0] == '-')
228 picres.rt |= YDECR;
229 if (picres.xr == 0)
230 picres.rt |= YMAJOR;
231 picres.yr = atoi(argv[++i]);
232 break;
233 default:
234 unkopt:
235 fprintf(stderr, "%s: unknown option: %s\n",
236 progname, argv[i]);
237 quit(1);
238 break;
239 }
240 else
241 break;
242 /* recognize special formats */
243 if (dataonly && format == 'b') {
244 if (putprim == ALL)
245 fmtid = "24-bit_rgb";
246 else
247 fmtid = "8-bit_grey";
248 }
249 if (dataonly && format == 'w') {
250 if (putprim == ALL)
251 fmtid = "48-bit_rgb";
252 else
253 fmtid = "16-bit_grey";
254 }
255 if (!reverse || (format != 'a') & (format != 'i'))
256 inpmode = "rb";
257 /* assign reverse ordering */
258 rord[ord[0]] = 0;
259 rord[ord[1]] = 1;
260 rord[ord[2]] = 2;
261 /* get input */
262 if (i == argc) {
263 long n = skipbytes;
264 if (inpmode[1] == 'b')
265 SET_FILE_BINARY(stdin);
266 while (n-- > 0)
267 if (getchar() == EOF) {
268 fprintf(stderr,
269 "%s: cannot skip %ld bytes on standard input\n",
270 progname, skipbytes);
271 quit(1);
272 }
273 fin = stdin;
274 } else if (i < argc) {
275 if ((fin = fopen(argv[i], inpmode)) == NULL) {
276 fprintf(stderr, "%s: can't open file \"%s\"\n",
277 progname, argv[i]);
278 quit(1);
279 }
280 if (reverse && putprim != BRIGHT && i == argc-3) {
281 if ((fin2 = fopen(argv[i+1], inpmode)) == NULL) {
282 fprintf(stderr, "%s: can't open file \"%s\"\n",
283 progname, argv[i+1]);
284 quit(1);
285 }
286 if ((fin3 = fopen(argv[i+2], inpmode)) == NULL) {
287 fprintf(stderr, "%s: can't open file \"%s\"\n",
288 progname, argv[i+2]);
289 quit(1);
290 }
291 interleave = -1;
292 } else if (i != argc-1)
293 fin = NULL;
294 if (reverse && putprim != BRIGHT && !interleave) {
295 fin2 = fopen(argv[i], inpmode);
296 fin3 = fopen(argv[i], inpmode);
297 }
298 if (skipbytes && (fseek(fin, skipbytes, SEEK_SET) || (fin2 != NULL &&
299 fseek(fin2, skipbytes, SEEK_SET) |
300 fseek(fin3, skipbytes, SEEK_SET)))) {
301 fprintf(stderr, "%s: cannot skip %ld bytes on input\n",
302 progname, skipbytes);
303 quit(1);
304 }
305 }
306 if (fin == NULL) {
307 fprintf(stderr, "%s: bad # file arguments\n", progname);
308 quit(1);
309 }
310
311 if (reverse) {
312 SET_FILE_BINARY(stdout);
313 /* get header */
314 if (header) {
315 getheader(fin, checkhead, stdout);
316 if (wrongformat) {
317 fprintf(stderr, "%s: wrong input format (expected %s)\n",
318 progname, fmtid);
319 quit(1);
320 }
321 if (fin2 != NULL) {
322 getheader(fin2, NULL, NULL);
323 getheader(fin3, NULL, NULL);
324 }
325 } else
326 newheader("RADIANCE", stdout);
327 /* get resolution */
328 if ((resolution && !fgetsresolu(&picres, fin)) ||
329 picres.xr <= 0 || picres.yr <= 0) {
330 fprintf(stderr, "%s: missing resolution\n", progname);
331 quit(1);
332 }
333 if (resolution && fin2 != NULL) {
334 RESOLU pres2;
335 if (!fgetsresolu(&pres2, fin2) ||
336 pres2.rt != picres.rt ||
337 pres2.xr != picres.xr ||
338 pres2.yr != picres.yr ||
339 !fgetsresolu(&pres2, fin3) ||
340 pres2.rt != picres.rt ||
341 pres2.xr != picres.xr ||
342 pres2.yr != picres.yr) {
343 fprintf(stderr, "%s: resolution mismatch\n",
344 progname);
345 quit(1);
346 }
347 }
348 /* add to header */
349 printargs(i, argv, stdout);
350 if (expval < .99 || expval > 1.01)
351 fputexpos(expval, stdout);
352 if (outprims != NULL) {
353 if (outprims != stdprims)
354 fputprims(outprims, stdout);
355 fputformat(COLRFMT, stdout);
356 } else /* XYZ data */
357 fputformat(CIEFMT, stdout);
358 putchar('\n');
359 fputsresolu(&picres, stdout); /* always put resolution */
360 valtopix();
361 } else {
362 if ((format != 'a') & (format != 'i'))
363 SET_FILE_BINARY(stdout);
364 /* get header */
365 getheader(fin, checkhead, header ? stdout : (FILE *)NULL);
366 if (wrongformat) {
367 fprintf(stderr,
368 "%s: input not a Radiance RGBE picture\n",
369 progname);
370 quit(1);
371 }
372 if (!fgetsresolu(&picres, fin)) {
373 fprintf(stderr, "%s: missing resolution\n", progname);
374 quit(1);
375 }
376 if (header) {
377 printargs(i, argv, stdout);
378 printf("NCOMP=%d\n", putprim==ALL ? 3 : 1);
379 if (!resolution && dataonly && !uniq)
380 printf("NCOLS=%d\nNROWS=%d\n", scanlen(&picres),
381 numscans(&picres));
382 if (expval < .99 || expval > 1.01)
383 fputexpos(expval, stdout);
384 if (swapbytes) {
385 if (nativebigendian())
386 puts("BigEndian=0");
387 else
388 puts("BigEndian=1");
389 } else if ((format != 'a') & (format != 'i'))
390 fputendian(stdout);
391 fputformat(fmtid, stdout);
392 putchar('\n');
393 }
394 if (resolution) /* put resolution */
395 fputsresolu(&picres, stdout);
396 pixtoval();
397 }
398
399 quit(0);
400 return 0; /* pro forma return */
401 }
402
403
404 static int
405 checkhead( /* deal with line from header */
406 char *line,
407 void *p
408 )
409 {
410 FILE *fout = (FILE *)p;
411 char fmt[MAXFMTLEN];
412 double d;
413 COLOR ctmp;
414 int rv;
415
416 if (formatval(fmt, line)) {
417 if (reverse)
418 wrongformat = strcmp(fmt, fmtid);
419 else if (!strcmp(fmt, CIEFMT))
420 mybright = &xyz_bright;
421 else if (!strcmp(fmt, COLRFMT))
422 mybright = &rgb_bright;
423 else
424 wrongformat++;
425 return(1);
426 }
427 if (original && isexpos(line)) {
428 d = 1.0/exposval(line);
429 scalecolor(exposure, d);
430 doexposure++;
431 return(1);
432 }
433 if (original && iscolcor(line)) {
434 colcorval(ctmp, line);
435 setcolor(exposure, colval(exposure,RED)/colval(ctmp,RED),
436 colval(exposure,GRN)/colval(ctmp,GRN),
437 colval(exposure,BLU)/colval(ctmp,BLU));
438 doexposure++;
439 return(1);
440 }
441 if ((rv = isbigendian(line)) >= 0) {
442 if (reverse)
443 swapbytes = (nativebigendian() != rv);
444 return(1);
445 }
446 if (fout != NULL)
447 fputs(line, fout);
448 return(0);
449 }
450
451
452 static void
453 pixtoval(void) /* convert picture to values */
454 {
455 COLOR *scanln;
456 int dogamma;
457 COLOR lastc;
458 RREAL hv[2];
459 int startprim, endprim;
460 long startpos;
461 int x, y;
462
463 scanln = (COLOR *)malloc(scanlen(&picres)*sizeof(COLOR));
464 if (scanln == NULL) {
465 fprintf(stderr, "%s: out of memory\n", progname);
466 quit(1);
467 }
468 dogamma = gamcor < .95 || gamcor > 1.05;
469 if ((putprim == ALL) & !interleave) {
470 startprim = RED; endprim = BLU;
471 startpos = ftell(fin);
472 } else {
473 startprim = putprim; endprim = putprim;
474 }
475 for (putprim = startprim; putprim <= endprim; putprim++) {
476 if (putprim != startprim && fseek(fin, startpos, SEEK_SET)) {
477 fprintf(stderr, "%s: seek error on input file\n",
478 progname);
479 quit(1);
480 }
481 set_io();
482 setcolor(lastc, 0.0, 0.0, 0.0);
483 for (y = 0; y < numscans(&picres); y++) {
484 if (freadscan(scanln, scanlen(&picres), fin) < 0) {
485 fprintf(stderr, "%s: read error\n", progname);
486 quit(1);
487 }
488 for (x = 0; x < scanlen(&picres); x++) {
489 if (uniq) {
490 if ( colval(scanln[x],RED) ==
491 colval(lastc,RED) &&
492 colval(scanln[x],GRN) ==
493 colval(lastc,GRN) &&
494 colval(scanln[x],BLU) ==
495 colval(lastc,BLU) )
496 continue;
497 else
498 copycolor(lastc, scanln[x]);
499 }
500 if (doexposure)
501 multcolor(scanln[x], exposure);
502 if (dogamma)
503 setcolor(scanln[x],
504 pow(colval(scanln[x],RED), 1.0/gamcor),
505 pow(colval(scanln[x],GRN), 1.0/gamcor),
506 pow(colval(scanln[x],BLU), 1.0/gamcor));
507 if (!dataonly) {
508 pix2loc(hv, &picres, x, y);
509 printf("%7d %7d ",
510 (int)(hv[0]*picres.xr),
511 (int)(hv[1]*picres.yr));
512 }
513 if ((*putval)(scanln[x]) < 0) {
514 fprintf(stderr, "%s: write error\n",
515 progname);
516 quit(1);
517 }
518 }
519 }
520 }
521 free((void *)scanln);
522 }
523
524
525 static void
526 valtopix(void) /* convert values to a pixel file */
527 {
528 int dogamma;
529 COLOR *scanln;
530 COLR rgbe;
531 int x, y;
532
533 scanln = (COLOR *)malloc(scanlen(&picres)*sizeof(COLOR));
534 if (scanln == NULL) {
535 fprintf(stderr, "%s: out of memory\n", progname);
536 quit(1);
537 }
538 dogamma = gamcor < .95 || gamcor > 1.05;
539 set_io();
540 for (y = 0; y < numscans(&picres); y++) {
541 for (x = 0; x < scanlen(&picres); x++) {
542 if (!dataonly) {
543 fscanf(fin, "%*d %*d");
544 if (fin2 != NULL) {
545 fscanf(fin2, "%*d %*d");
546 fscanf(fin3, "%*d %*d");
547 }
548 }
549 if ((*getval)(scanln[x]) < 0) {
550 fprintf(stderr, "%s: read error\n", progname);
551 quit(1);
552 }
553 if (dogamma)
554 setcolor(scanln[x],
555 pow(colval(scanln[x],RED), gamcor),
556 pow(colval(scanln[x],GRN), gamcor),
557 pow(colval(scanln[x],BLU), gamcor));
558 if (doexposure)
559 multcolor(scanln[x], exposure);
560 if (uniq) { /* uncompressed? */
561 setcolr(rgbe, scanln[x][RED],
562 scanln[x][GRN],
563 scanln[x][BLU]);
564 if (putbinary(rgbe, sizeof(COLR), 1, stdout) != 1)
565 goto writerr;
566 }
567 }
568 /* write scan if compressed */
569 if (!uniq && fwritescan(scanln, scanlen(&picres), stdout) < 0)
570 goto writerr;
571 }
572 free((void *)scanln);
573 return;
574 writerr:
575 fprintf(stderr, "%s: write error\n", progname);
576 quit(1);
577 }
578
579
580 void
581 quit(code)
582 int code;
583 {
584 exit(code);
585 }
586
587
588 static int
589 getcascii( /* get an ascii color value from stream(s) */
590 COLOR col
591 )
592 {
593 double vd[3];
594
595 if (fin2 == NULL) {
596 if (fscanf(fin, "%lf %lf %lf", &vd[0], &vd[1], &vd[2]) != 3)
597 return(-1);
598 } else {
599 if (fscanf(fin, "%lf", &vd[0]) != 1 ||
600 fscanf(fin2, "%lf", &vd[1]) != 1 ||
601 fscanf(fin3, "%lf", &vd[2]) != 1)
602 return(-1);
603 }
604 setcolor(col, vd[rord[RED]], vd[rord[GRN]], vd[rord[BLU]]);
605 return(0);
606 }
607
608
609 static int
610 getcdouble( /* get a double color value from stream(s) */
611 COLOR col
612 )
613 {
614 double vd[3];
615
616 if (fin2 == NULL) {
617 if (getbinary(vd, sizeof(double), 3, fin) != 3)
618 return(-1);
619 } else {
620 if (getbinary(vd, sizeof(double), 1, fin) != 1 ||
621 getbinary(vd+1, sizeof(double), 1, fin2) != 1 ||
622 getbinary(vd+2, sizeof(double), 1, fin3) != 1)
623 return(-1);
624 }
625 if (swapbytes)
626 swap64((char *)vd, 3);
627 setcolor(col, vd[rord[RED]], vd[rord[GRN]], vd[rord[BLU]]);
628 return(0);
629 }
630
631
632 static int
633 getcfloat( /* get a float color value from stream(s) */
634 COLOR col
635 )
636 {
637 float vf[3];
638
639 if (fin2 == NULL) {
640 if (getbinary(vf, sizeof(float), 3, fin) != 3)
641 return(-1);
642 } else {
643 if (getbinary(vf, sizeof(float), 1, fin) != 1 ||
644 getbinary(vf+1, sizeof(float), 1, fin2) != 1 ||
645 getbinary(vf+2, sizeof(float), 1, fin3) != 1)
646 return(-1);
647 }
648 if (swapbytes)
649 swap32((char *)vf, 3);
650 setcolor(col, vf[rord[RED]], vf[rord[GRN]], vf[rord[BLU]]);
651 return(0);
652 }
653
654
655 static int
656 getcint( /* get an int color value from stream(s) */
657 COLOR col
658 )
659 {
660 int vi[3];
661
662 if (fin2 == NULL) {
663 if (fscanf(fin, "%d %d %d", &vi[0], &vi[1], &vi[2]) != 3)
664 return(-1);
665 } else {
666 if (fscanf(fin, "%d", &vi[0]) != 1 ||
667 fscanf(fin2, "%d", &vi[1]) != 1 ||
668 fscanf(fin3, "%d", &vi[2]) != 1)
669 return(-1);
670 }
671 setcolor(col, (vi[rord[RED]]+.5)/256.,
672 (vi[rord[GRN]]+.5)/256., (vi[rord[BLU]]+.5)/256.);
673 return(0);
674 }
675
676
677 static int
678 getcbyte( /* get a byte color value from stream(s) */
679 COLOR col
680 )
681 {
682 uby8 vb[3];
683
684 if (fin2 == NULL) {
685 if (getbinary(vb, sizeof(uby8), 3, fin) != 3)
686 return(-1);
687 } else {
688 if (getbinary(vb, sizeof(uby8), 1, fin) != 1 ||
689 getbinary(vb+1, sizeof(uby8), 1, fin2) != 1 ||
690 getbinary(vb+2, sizeof(uby8), 1, fin3) != 1)
691 return(-1);
692 }
693 setcolor(col, (vb[rord[RED]]+.5)/256.,
694 (vb[rord[GRN]]+.5)/256., (vb[rord[BLU]]+.5)/256.);
695 return(0);
696 }
697
698
699 static int
700 getcword( /* get a 16-bit color value from stream(s) */
701 COLOR col
702 )
703 {
704 uint16 vw[3];
705
706 if (fin2 == NULL) {
707 if (getbinary(vw, sizeof(uint16), 3, fin) != 3)
708 return(-1);
709 } else {
710 if (getbinary(vw, sizeof(uint16), 1, fin) != 1 ||
711 getbinary(vw+1, sizeof(uint16), 1, fin2) != 1 ||
712 getbinary(vw+2, sizeof(uint16), 1, fin3) != 1)
713 return(-1);
714 }
715 if (swapbytes)
716 swap16((char *)vw, 3);
717 setcolor(col, (vw[rord[RED]]+.5)/65536.,
718 (vw[rord[GRN]]+.5)/65536., (vw[rord[BLU]]+.5)/65536.);
719 return(0);
720 }
721
722
723 static int
724 getbascii( /* get an ascii brightness value from fin */
725 COLOR col
726 )
727 {
728 double vd;
729
730 if (fscanf(fin, "%lf", &vd) != 1)
731 return(-1);
732 setcolor(col, vd, vd, vd);
733 return(0);
734 }
735
736
737 static int
738 getbdouble( /* get a double brightness value from fin */
739 COLOR col
740 )
741 {
742 double vd;
743
744 if (getbinary(&vd, sizeof(double), 1, fin) != 1)
745 return(-1);
746 if (swapbytes)
747 swap64((char *)&vd, 1);
748 setcolor(col, vd, vd, vd);
749 return(0);
750 }
751
752
753 static int
754 getbfloat( /* get a float brightness value from fin */
755 COLOR col
756 )
757 {
758 float vf;
759
760 if (getbinary(&vf, sizeof(float), 1, fin) != 1)
761 return(-1);
762 if (swapbytes)
763 swap32((char *)&vf, 1);
764 setcolor(col, vf, vf, vf);
765 return(0);
766 }
767
768
769 static int
770 getbint( /* get an int brightness value from fin */
771 COLOR col
772 )
773 {
774 int vi;
775 double d;
776
777 if (fscanf(fin, "%d", &vi) != 1)
778 return(-1);
779 d = (vi+.5)/256.;
780 setcolor(col, d, d, d);
781 return(0);
782 }
783
784
785 static int
786 getbbyte( /* get a byte brightness value from fin */
787 COLOR col
788 )
789 {
790 uby8 vb;
791 double d;
792
793 if (getbinary(&vb, sizeof(uby8), 1, fin) != 1)
794 return(-1);
795 d = (vb+.5)/256.;
796 setcolor(col, d, d, d);
797 return(0);
798 }
799
800
801 static int
802 getbword( /* get a 16-bit brightness value from fin */
803 COLOR col
804 )
805 {
806 uint16 vw;
807 double d;
808
809 if (getbinary(&vw, sizeof(uint16), 1, fin) != 1)
810 return(-1);
811 if (swapbytes)
812 swap16((char *)&vw, 1);
813 d = (vw+.5)/65536.;
814 setcolor(col, d, d, d);
815 return(0);
816 }
817
818
819 static int
820 putcascii( /* put an ascii color to stdout */
821 COLOR col
822 )
823 {
824 fprintf(stdout, "%15.3e %15.3e %15.3e\n",
825 colval(col,ord[0]),
826 colval(col,ord[1]),
827 colval(col,ord[2]));
828
829 return(ferror(stdout) ? -1 : 0);
830 }
831
832
833 static int
834 putcfloat( /* put a float color to stdout */
835 COLOR col
836 )
837 {
838 float vf[3];
839
840 vf[0] = colval(col,ord[0]);
841 vf[1] = colval(col,ord[1]);
842 vf[2] = colval(col,ord[2]);
843 if (swapbytes)
844 swap32((char *)vf, 3);
845 putbinary(vf, sizeof(float), 3, stdout);
846
847 return(ferror(stdout) ? -1 : 0);
848 }
849
850
851 static int
852 putcdouble( /* put a double color to stdout */
853 COLOR col
854 )
855 {
856 double vd[3];
857
858 vd[0] = colval(col,ord[0]);
859 vd[1] = colval(col,ord[1]);
860 vd[2] = colval(col,ord[2]);
861 if (swapbytes)
862 swap64((char *)vd, 3);
863 putbinary(vd, sizeof(double), 3, stdout);
864
865 return(ferror(stdout) ? -1 : 0);
866 }
867
868
869 static int
870 putcint( /* put an int color to stdout */
871 COLOR col
872 )
873 {
874 fprintf(stdout, "%d %d %d\n",
875 (int)(colval(col,ord[0])*256.),
876 (int)(colval(col,ord[1])*256.),
877 (int)(colval(col,ord[2])*256.));
878
879 return(ferror(stdout) ? -1 : 0);
880 }
881
882
883 static int
884 putcbyte( /* put a byte color to stdout */
885 COLOR col
886 )
887 {
888 long i;
889 uby8 vb[3];
890
891 i = colval(col,ord[0])*256.;
892 vb[0] = min(i,255);
893 i = colval(col,ord[1])*256.;
894 vb[1] = min(i,255);
895 i = colval(col,ord[2])*256.;
896 vb[2] = min(i,255);
897 putbinary(vb, sizeof(uby8), 3, stdout);
898
899 return(ferror(stdout) ? -1 : 0);
900 }
901
902
903 static int
904 putcword( /* put a 16-bit color to stdout */
905 COLOR col
906 )
907 {
908 long i;
909 uint16 vw[3];
910
911 i = colval(col,ord[0])*65536.;
912 vw[0] = min(i,65535);
913 i = colval(col,ord[1])*65536.;
914 vw[1] = min(i,65535);
915 i = colval(col,ord[2])*65536.;
916 vw[2] = min(i,65535);
917 if (swapbytes)
918 swap16((char *)vw, 3);
919 putbinary(vw, sizeof(uint16), 3, stdout);
920
921 return(ferror(stdout) ? -1 : 0);
922 }
923
924
925 static int
926 putbascii( /* put an ascii brightness to stdout */
927 COLOR col
928 )
929 {
930 fprintf(stdout, "%15.3e\n", (*mybright)(col));
931
932 return(ferror(stdout) ? -1 : 0);
933 }
934
935
936 static int
937 putbfloat( /* put a float brightness to stdout */
938 COLOR col
939 )
940 {
941 float vf;
942
943 vf = (*mybright)(col);
944 if (swapbytes)
945 swap32((char *)&vf, 1);
946 putbinary(&vf, sizeof(float), 1, stdout);
947
948 return(ferror(stdout) ? -1 : 0);
949 }
950
951
952 static int
953 putbdouble( /* put a double brightness to stdout */
954 COLOR col
955 )
956 {
957 double vd;
958
959 vd = (*mybright)(col);
960 if (swapbytes)
961 swap64((char *)&vd, 1);
962 putbinary(&vd, sizeof(double), 1, stdout);
963
964 return(ferror(stdout) ? -1 : 0);
965 }
966
967
968 static int
969 putbint( /* put an int brightness to stdout */
970 COLOR col
971 )
972 {
973 fprintf(stdout, "%d\n", (int)((*mybright)(col)*256.));
974
975 return(ferror(stdout) ? -1 : 0);
976 }
977
978
979 static int
980 putbbyte( /* put a byte brightness to stdout */
981 COLOR col
982 )
983 {
984 int i;
985 uby8 vb;
986
987 i = (*mybright)(col)*256.;
988 vb = min(i,255);
989 putbinary(&vb, sizeof(uby8), 1, stdout);
990
991 return(ferror(stdout) ? -1 : 0);
992 }
993
994
995 static int
996 putbword( /* put a 16-bit brightness to stdout */
997 COLOR col
998 )
999 {
1000 long i;
1001 uint16 vw;
1002
1003 i = (*mybright)(col)*65536.;
1004 vw = min(i,65535);
1005 if (swapbytes)
1006 swap16((char *)&vw, 1);
1007 putbinary(&vw, sizeof(uint16), 1, stdout);
1008
1009 return(ferror(stdout) ? -1 : 0);
1010 }
1011
1012
1013 static int
1014 putpascii( /* put an ascii primary to stdout */
1015 COLOR col
1016 )
1017 {
1018 fprintf(stdout, "%15.3e\n", colval(col,putprim));
1019
1020 return(ferror(stdout) ? -1 : 0);
1021 }
1022
1023
1024 static int
1025 putpfloat( /* put a float primary to stdout */
1026 COLOR col
1027 )
1028 {
1029 float vf;
1030
1031 vf = colval(col,putprim);
1032 if (swapbytes)
1033 swap32((char *)&vf, 1);
1034 putbinary(&vf, sizeof(float), 1, stdout);
1035
1036 return(ferror(stdout) ? -1 : 0);
1037 }
1038
1039
1040 static int
1041 putpdouble( /* put a double primary to stdout */
1042 COLOR col
1043 )
1044 {
1045 double vd;
1046
1047 vd = colval(col,putprim);
1048 if (swapbytes)
1049 swap64((char *)&vd, 1);
1050 putbinary(&vd, sizeof(double), 1, stdout);
1051
1052 return(ferror(stdout) ? -1 : 0);
1053 }
1054
1055
1056 static int
1057 putpint( /* put an int primary to stdout */
1058 COLOR col
1059 )
1060 {
1061 fprintf(stdout, "%d\n", (int)(colval(col,putprim)*256.));
1062
1063 return(ferror(stdout) ? -1 : 0);
1064 }
1065
1066
1067 static int
1068 putpbyte( /* put a byte primary to stdout */
1069 COLOR col
1070 )
1071 {
1072 long i;
1073 uby8 vb;
1074
1075 i = colval(col,putprim)*256.;
1076 vb = min(i,255);
1077 putbinary(&vb, sizeof(uby8), 1, stdout);
1078
1079 return(ferror(stdout) ? -1 : 0);
1080 }
1081
1082
1083 static int
1084 putpword( /* put a 16-bit primary to stdout */
1085 COLOR col
1086 )
1087 {
1088 long i;
1089 uint16 vw;
1090
1091 i = colval(col,putprim)*65536.;
1092 vw = min(i,65535);
1093 if (swapbytes)
1094 swap16((char *)&vw, 1);
1095 putbinary(&vw, sizeof(uint16), 1, stdout);
1096
1097 return(ferror(stdout) ? -1 : 0);
1098 }
1099
1100
1101 static void
1102 set_io(void) /* set put and get functions */
1103 {
1104 switch (format) {
1105 case 'a': /* ascii */
1106 if (putprim == BRIGHT) {
1107 getval = getbascii;
1108 putval = putbascii;
1109 } else if (putprim != ALL) {
1110 getval = getbascii;
1111 putval = putpascii;
1112 } else {
1113 getval = getcascii;
1114 putval = putcascii;
1115 if (reverse && !interleave) {
1116 fprintf(stderr,
1117 "%s: ASCII input files must be interleaved\n",
1118 progname);
1119 quit(1);
1120 }
1121 }
1122 return;
1123 case 'f': /* binary float */
1124 if (putprim == BRIGHT) {
1125 getval = getbfloat;
1126 putval = putbfloat;
1127 } else if (putprim != ALL) {
1128 getval = getbfloat;
1129 putval = putpfloat;
1130 } else {
1131 getval = getcfloat;
1132 putval = putcfloat;
1133 if (reverse && !interleave) {
1134 if (fin2 == NULL)
1135 goto namerr;
1136 if (fseek(fin2,
1137 (long)sizeof(float)*picres.xr*picres.yr, SEEK_CUR))
1138 goto seekerr;
1139 if (fseek(fin3,
1140 (long)sizeof(float)*2*picres.xr*picres.yr, SEEK_CUR))
1141 goto seekerr;
1142 }
1143 }
1144 return;
1145 case 'd': /* binary double */
1146 if (putprim == BRIGHT) {
1147 getval = getbdouble;
1148 putval = putbdouble;
1149 } else if (putprim != ALL) {
1150 getval = getbdouble;
1151 putval = putpdouble;
1152 } else {
1153 getval = getcdouble;
1154 putval = putcdouble;
1155 if (reverse && !interleave) {
1156 if (fin2 == NULL)
1157 goto namerr;
1158 if (fseek(fin2,
1159 (long)sizeof(double)*picres.xr*picres.yr, SEEK_CUR))
1160 goto seekerr;
1161 if (fseek(fin3,
1162 (long)sizeof(double)*2*picres.xr*picres.yr, SEEK_CUR))
1163 goto seekerr;
1164 }
1165 }
1166 return;
1167 case 'i': /* integer */
1168 if (putprim == BRIGHT) {
1169 getval = getbint;
1170 putval = putbint;
1171 } else if (putprim != ALL) {
1172 getval = getbint;
1173 putval = putpint;
1174 } else {
1175 getval = getcint;
1176 putval = putcint;
1177 if (reverse && !interleave) {
1178 fprintf(stderr,
1179 "%s: integer input files must be interleaved\n",
1180 progname);
1181 quit(1);
1182 }
1183 }
1184 return;
1185 case 'b': /* byte */
1186 if (putprim == BRIGHT) {
1187 getval = getbbyte;
1188 putval = putbbyte;
1189 } else if (putprim != ALL) {
1190 getval = getbbyte;
1191 putval = putpbyte;
1192 } else {
1193 getval = getcbyte;
1194 putval = putcbyte;
1195 if (reverse && !interleave) {
1196 if (fin2 == NULL)
1197 goto namerr;
1198 if (fseek(fin2,
1199 (long)sizeof(uby8)*picres.xr*picres.yr, SEEK_CUR))
1200 goto seekerr;
1201 if (fseek(fin3,
1202 (long)sizeof(uby8)*2*picres.xr*picres.yr, SEEK_CUR))
1203 goto seekerr;
1204 }
1205 }
1206 return;
1207 case 'w': /* 16-bit */
1208 if (putprim == BRIGHT) {
1209 getval = getbword;
1210 putval = putbword;
1211 } else if (putprim != ALL) {
1212 getval = getbword;
1213 putval = putpword;
1214 } else {
1215 getval = getcword;
1216 putval = putcword;
1217 if (reverse && !interleave) {
1218 if (fin2 == NULL)
1219 goto namerr;
1220 if (fseek(fin2,
1221 (long)sizeof(uint16)*picres.xr*picres.yr, SEEK_CUR))
1222 goto seekerr;
1223 if (fseek(fin3,
1224 (long)sizeof(uint16)*2*picres.xr*picres.yr, SEEK_CUR))
1225 goto seekerr;
1226 }
1227 }
1228 return;
1229 }
1230 /* badopt: */ /* label not used */
1231 fprintf(stderr, "%s: botched file type\n", progname);
1232 quit(1);
1233 namerr:
1234 fprintf(stderr, "%s: non-interleaved file(s) must be named\n",
1235 progname);
1236 quit(1);
1237 seekerr:
1238 fprintf(stderr, "%s: cannot seek on interleaved input file\n",
1239 progname);
1240 quit(1);
1241 }