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root/radiance/ray/src/util/dctimestep.c
Revision: 2.48
Committed: Fri Mar 11 02:28:51 2022 UTC (9 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.47: +3 -3 lines
Log Message:
fix(dctimestep): Forgot to add new options to usage message

File Contents

# Content
1 #ifndef lint
2 static const char RCSid[] = "$Id: dctimestep.c,v 2.47 2022/03/11 02:27:02 greg Exp $";
3 #endif
4 /*
5 * Compute time-step result using Daylight Coefficient method.
6 *
7 * G. Ward
8 */
9
10 #include <ctype.h>
11 #include "platform.h"
12 #include "standard.h"
13 #include "cmatrix.h"
14 #include "platform.h"
15 #include "resolu.h"
16
17 char *progname; /* global argv[0] */
18
19 /* Sum together a set of images and write result to fout */
20 static int
21 sum_images(const char *fspec, const CMATRIX *cv, FILE *fout)
22 {
23 int myDT = DTfromHeader;
24 COLR *scanline = NULL;
25 CMATRIX *pmat = NULL;
26 int myXR=0, myYR=0;
27 int i, y;
28
29 if (cv->ncols != 1)
30 error(INTERNAL, "expected vector in sum_images()");
31 for (i = 0; i < cv->nrows; i++) {
32 const COLORV *scv = cv_lval(cv,i);
33 int flat_file = 0;
34 char fname[1024];
35 FILE *fp;
36 long data_start;
37 int dt, xr, yr;
38 COLORV *psp;
39 char *err;
40 /* check for zero */
41 if ((scv[RED] == 0) & (scv[GRN] == 0) & (scv[BLU] == 0) &&
42 (myDT != DTfromHeader) | (i < cv->nrows-1))
43 continue;
44 /* open next picture */
45 sprintf(fname, fspec, i);
46 if ((fp = fopen(fname, "rb")) == NULL) {
47 sprintf(errmsg, "cannot open picture '%s'", fname);
48 error(SYSTEM, errmsg);
49 }
50 dt = DTfromHeader;
51 if ((err = cm_getheader(&dt, NULL, NULL, NULL, NULL, fp)) != NULL)
52 error(USER, err);
53 if ((dt != DTrgbe) & (dt != DTxyze) ||
54 !fscnresolu(&xr, &yr, fp)) {
55 sprintf(errmsg, "file '%s' not a picture", fname);
56 error(USER, errmsg);
57 }
58 if (myDT == DTfromHeader) { /* on first one */
59 myDT = dt;
60 myXR = xr; myYR = yr;
61 scanline = (COLR *)malloc(sizeof(COLR)*myXR);
62 if (scanline == NULL)
63 error(SYSTEM, "out of memory in sum_images()");
64 pmat = cm_alloc(myYR, myXR);
65 memset(pmat->cmem, 0, sizeof(COLOR)*myXR*myYR);
66 /* finish header */
67 fputformat(cm_fmt_id[myDT], fout);
68 fputc('\n', fout);
69 fflush(fout);
70 } else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) {
71 sprintf(errmsg, "picture '%s' format/size mismatch",
72 fname);
73 error(USER, errmsg);
74 }
75 /* flat file check */
76 if ((data_start = ftell(fp)) > 0 && fseek(fp, 0L, SEEK_END) == 0) {
77 flat_file = (ftell(fp) == data_start + sizeof(COLR)*xr*yr);
78 if (fseek(fp, data_start, SEEK_SET) < 0) {
79 sprintf(errmsg, "cannot seek on picture '%s'", fname);
80 error(SYSTEM, errmsg);
81 }
82 }
83 psp = pmat->cmem;
84 for (y = 0; y < yr; y++) { /* read it in */
85 COLOR col;
86 int x;
87 if (flat_file ? getbinary(scanline, sizeof(COLR), xr, fp) != xr :
88 freadcolrs(scanline, xr, fp) < 0) {
89 sprintf(errmsg, "error reading picture '%s'",
90 fname);
91 error(SYSTEM, errmsg);
92 }
93 /* sum in scanline */
94 for (x = 0; x < xr; x++, psp += 3) {
95 if (!scanline[x][EXP])
96 continue; /* skip zeroes */
97 colr_color(col, scanline[x]);
98 multcolor(col, scv);
99 addcolor(psp, col);
100 }
101 }
102 fclose(fp); /* done this picture */
103 }
104 free(scanline);
105 i = cm_write(pmat, myDT, fout); /* write picture */
106 cm_free(pmat); /* free data */
107 return(i);
108 }
109
110 /* check to see if a string contains a %d or %o specification */
111 static int
112 hasNumberFormat(const char *s)
113 {
114 if (s == NULL)
115 return(0);
116
117 while (*s) {
118 while (*s != '%')
119 if (!*s++)
120 return(0);
121 if (*++s == '%') { /* ignore "%%" */
122 ++s;
123 continue;
124 }
125 while (isdigit(*s)) /* field length */
126 ++s;
127 /* field we'll use? */
128 if ((*s == 'd') | (*s == 'i') | (*s == 'o') |
129 (*s == 'x') | (*s == 'X'))
130 return(1);
131 }
132 return(0); /* didn't find one */
133 }
134
135 int
136 main(int argc, char *argv[])
137 {
138 int skyfmt = DTfromHeader;
139 int outfmt = DTascii;
140 int headout = 1;
141 int nsteps = 0;
142 char *ofspec = NULL;
143 FILE *ofp = stdout;
144 int xres=0, yres=0;
145 CMATRIX *cmtx; /* component vector/matrix result */
146 char fnbuf[256];
147 int a, i;
148
149 progname = argv[0];
150 /* get options */
151 for (a = 1; a < argc && argv[a][0] == '-'; a++)
152 switch (argv[a][1]) {
153 case 'n':
154 nsteps = atoi(argv[++a]);
155 if (nsteps < 0)
156 goto userr;
157 skyfmt = nsteps ? DTascii : DTfromHeader;
158 break;
159 case 'h':
160 headout = !headout;
161 break;
162 case 'i':
163 switch (argv[a][2]) {
164 case 'f':
165 skyfmt = DTfloat;
166 break;
167 case 'd':
168 skyfmt = DTdouble;
169 break;
170 case 'a':
171 skyfmt = DTascii;
172 break;
173 default:
174 goto userr;
175 }
176 break;
177 case 'o':
178 switch (argv[a][2]) {
179 case '\0': /* output specification (not format) */
180 ofspec = argv[++a];
181 break;
182 case 'f':
183 outfmt = DTfloat;
184 break;
185 case 'd':
186 outfmt = DTdouble;
187 break;
188 case 'a':
189 outfmt = DTascii;
190 break;
191 case 'c':
192 outfmt = DTrgbe;
193 break;
194 default:
195 goto userr;
196 }
197 break;
198 case 'x':
199 xres = atoi(argv[++a]);
200 break;
201 case 'y':
202 yres = atoi(argv[++a]);
203 break;
204 default:
205 goto userr;
206 }
207 if ((argc-a < 1) | (argc-a > 4))
208 goto userr;
209
210 if (argc-a > 2) { /* VTDs expression */
211 CMATRIX *smtx, *Dmat, *Tmat, *imtx;
212 const char *ccp;
213 /* get sky vector/matrix */
214 smtx = cm_load(argv[a+3], 0, nsteps, skyfmt);
215 nsteps = smtx->ncols;
216 /* load BSDF */
217 if (argv[a+1][0] != '!' &&
218 (ccp = strrchr(argv[a+1], '.')) != NULL &&
219 !strcasecmp(ccp+1, "XML"))
220 Tmat = cm_loadBTDF(argv[a+1]);
221 else
222 Tmat = cm_load(argv[a+1], 0, 0, DTfromHeader);
223 /* load Daylight matrix */
224 Dmat = cm_load(argv[a+2], Tmat->ncols,
225 smtx->nrows, DTfromHeader);
226 /* multiply vector through */
227 imtx = cm_multiply(Dmat, smtx);
228 cm_free(Dmat); cm_free(smtx);
229 cmtx = cm_multiply(Tmat, imtx);
230 cm_free(Tmat);
231 cm_free(imtx);
232 } else { /* sky vector/matrix only */
233 cmtx = cm_load(argv[a+1], 0, nsteps, skyfmt);
234 nsteps = cmtx->ncols;
235 }
236 /* prepare output stream */
237 if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) {
238 sprintf(fnbuf, ofspec, 1);
239 ofspec = fnbuf;
240 }
241 if (ofspec != NULL && !hasNumberFormat(ofspec)) {
242 if ((ofp = fopen(ofspec, "w")) == NULL) {
243 fprintf(stderr, "%s: cannot open '%s' for output\n",
244 progname, ofspec);
245 return(1);
246 }
247 ofspec = NULL; /* only need to open once */
248 }
249 if (hasNumberFormat(argv[a])) { /* generating image(s) */
250 if (outfmt != DTrgbe) {
251 error(WARNING, "changing output type to -oc");
252 outfmt = DTrgbe;
253 }
254 if (ofspec == NULL) {
255 SET_FILE_BINARY(ofp);
256 newheader("RADIANCE", ofp);
257 printargs(argc, argv, ofp);
258 fputnow(ofp);
259 }
260 if (nsteps > 1) /* multiple output frames? */
261 for (i = 0; i < nsteps; i++) {
262 CMATRIX *cvec = cm_column(cmtx, i);
263 if (ofspec != NULL) {
264 sprintf(fnbuf, ofspec, i);
265 if ((ofp = fopen(fnbuf, "wb")) == NULL) {
266 fprintf(stderr,
267 "%s: cannot open '%s' for output\n",
268 progname, fnbuf);
269 return(1);
270 }
271 newheader("RADIANCE", ofp);
272 printargs(argc, argv, ofp);
273 fputnow(ofp);
274 }
275 fprintf(ofp, "FRAME=%d\n", i);
276 if (!sum_images(argv[a], cvec, ofp))
277 return(1);
278 if (ofspec != NULL) {
279 if (fclose(ofp) == EOF) {
280 fprintf(stderr,
281 "%s: error writing to '%s'\n",
282 progname, fnbuf);
283 return(1);
284 }
285 ofp = stdout;
286 }
287 cm_free(cvec);
288 }
289 else if (!sum_images(argv[a], cmtx, ofp))
290 return(1);
291 } else { /* generating vector/matrix */
292 CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader);
293 CMATRIX *rmtx = cm_multiply(Vmat, cmtx);
294 cm_free(Vmat);
295 if (ofspec != NULL) { /* multiple vector files? */
296 const char *wtype = (outfmt==DTascii) ? "w" : "wb";
297 for (i = 0; i < nsteps; i++) {
298 CMATRIX *rvec = cm_column(rmtx, i);
299 if (yres > 0) {
300 if (xres <= 0)
301 xres = rvec->nrows/yres;
302 if (xres*yres != rvec->nrows) {
303 fprintf(stderr, "Bad resolution: %d != %dx%d\n",
304 rvec->nrows, xres, yres);
305 return(1);
306 }
307 rvec->nrows = yres;
308 rvec->ncols = xres;
309 } else if (xres > 0) {
310 yres = rvec->nrows/xres;
311 if (xres*yres != rvec->nrows) {
312 fprintf(stderr,
313 "Bad resolution: %d does not divide %d evenly\n",
314 xres, rvec->nrows);
315 return(1);
316 }
317 rvec->nrows = yres;
318 rvec->ncols = xres;
319 }
320 sprintf(fnbuf, ofspec, i);
321 if ((ofp = fopen(fnbuf, wtype)) == NULL) {
322 fprintf(stderr,
323 "%s: cannot open '%s' for output\n",
324 progname, fnbuf);
325 return(1);
326 }
327 #ifdef getc_unlocked
328 flockfile(ofp);
329 #endif
330 if (headout) { /* header output */
331 newheader("RADIANCE", ofp);
332 printargs(argc, argv, ofp);
333 fputnow(ofp);
334 fprintf(ofp, "FRAME=%d\n", i);
335 if ((outfmt != DTrgbe) & (outfmt != DTxyze)) {
336 fprintf(ofp, "NROWS=%d\n", rvec->nrows);
337 fprintf(ofp, "NCOLS=%d\n", rvec->ncols);
338 fputs("NCOMP=3\n", ofp);
339 }
340 if ((outfmt == DTfloat) | (outfmt == DTdouble))
341 fputendian(ofp);
342 fputformat(cm_fmt_id[outfmt], ofp);
343 fputc('\n', ofp);
344 }
345 cm_write(rvec, outfmt, ofp);
346 if (fclose(ofp) == EOF) {
347 fprintf(stderr,
348 "%s: error writing to '%s'\n",
349 progname, fnbuf);
350 return(1);
351 }
352 ofp = stdout;
353 cm_free(rvec);
354 }
355 } else {
356 #ifdef getc_unlocked
357 flockfile(ofp);
358 #endif
359 if (outfmt != DTascii)
360 SET_FILE_BINARY(ofp);
361 if (headout) { /* header output */
362 newheader("RADIANCE", ofp);
363 printargs(argc, argv, ofp);
364 fputnow(ofp);
365 if ((outfmt != DTrgbe) & (outfmt != DTxyze)) {
366 fprintf(ofp, "NROWS=%d\n", rmtx->nrows);
367 fprintf(ofp, "NCOLS=%d\n", rmtx->ncols);
368 fputs("NCOMP=3\n", ofp);
369 }
370 if ((outfmt == DTfloat) | (outfmt == DTdouble))
371 fputendian(ofp);
372 fputformat(cm_fmt_id[outfmt], ofp);
373 fputc('\n', ofp);
374 }
375 cm_write(rmtx, outfmt, ofp);
376 }
377 cm_free(rmtx);
378 }
379 if (fflush(ofp) == EOF) { /* final clean-up */
380 fprintf(stderr, "%s: write error on output\n", progname);
381 return(1);
382 }
383 cm_free(cmtx);
384 return(0);
385 userr:
386 fprintf(stderr, "Usage: %s [-n nsteps][-o ospec][-x xr][-y yr][-i{f|d|h}][-o{f|d|c}] DCspec [skyf]\n",
387 progname);
388 fprintf(stderr, " or: %s [-n nsteps][-o ospec][-x xr][-y yr][-i{f|d|h}][-o{f|d|c}] Vspec Tbsdf Dmat.dat [skyf]\n",
389 progname);
390 return(1);
391 }