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root/radiance/ray/src/util/dctimestep.c
Revision: 2.44
Committed: Wed Oct 23 17:16:26 2019 UTC (4 years, 4 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.43: +7 -3 lines
Log Message:
Added warning if -oc not set for picture output

File Contents

# User Rev Content
1 greg 2.1 #ifndef lint
2 greg 2.44 static const char RCSid[] = "$Id: dctimestep.c,v 2.43 2019/10/23 17:00:14 greg Exp $";
3 greg 2.1 #endif
4     /*
5     * Compute time-step result using Daylight Coefficient method.
6     *
7     * G. Ward
8     */
9    
10     #include <ctype.h>
11 schorsch 2.37 #include "platform.h"
12 greg 2.1 #include "standard.h"
13 greg 2.28 #include "cmatrix.h"
14 greg 2.1 #include "platform.h"
15     #include "resolu.h"
16    
17     char *progname; /* global argv[0] */
18    
19 greg 2.24 /* Sum together a set of images and write result to fout */
20 greg 2.1 static int
21 greg 2.13 sum_images(const char *fspec, const CMATRIX *cv, FILE *fout)
22 greg 2.1 {
23     int myDT = DTfromHeader;
24 greg 2.38 COLR *scanline = NULL;
25 greg 2.24 CMATRIX *pmat = NULL;
26     int myXR=0, myYR=0;
27 greg 2.1 int i, y;
28    
29     if (cv->ncols != 1)
30 greg 2.35 error(INTERNAL, "expected vector in sum_images()");
31 greg 2.1 for (i = 0; i < cv->nrows; i++) {
32     const COLORV *scv = cv_lval(cv,i);
33 greg 2.39 int flat_file = 0;
34 greg 2.1 char fname[1024];
35     FILE *fp;
36 greg 2.39 long data_start;
37 greg 2.1 int dt, xr, yr;
38     COLORV *psp;
39 greg 2.31 char *err;
40 greg 2.14 /* check for zero */
41 greg 2.19 if ((scv[RED] == 0) & (scv[GRN] == 0) & (scv[BLU] == 0) &&
42     (myDT != DTfromHeader) | (i < cv->nrows-1))
43 greg 2.14 continue;
44 greg 2.1 /* open next picture */
45     sprintf(fname, fspec, i);
46 greg 2.31 if ((fp = fopen(fname, "rb")) == NULL) {
47 greg 2.1 sprintf(errmsg, "cannot open picture '%s'", fname);
48     error(SYSTEM, errmsg);
49     }
50 greg 2.31 dt = DTfromHeader;
51 greg 2.41 if ((err = cm_getheader(&dt, NULL, NULL, NULL, fp)) != NULL)
52 greg 2.31 error(USER, err);
53 greg 2.1 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 greg 2.38 scanline = (COLR *)malloc(sizeof(COLR)*myXR);
62 greg 2.1 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 greg 2.2 /* finish header */
67 greg 2.30 fputformat((char *)cm_fmt_id[myDT], fout);
68 greg 2.13 fputc('\n', fout);
69     fflush(fout);
70 greg 2.1 } else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) {
71     sprintf(errmsg, "picture '%s' format/size mismatch",
72     fname);
73     error(USER, errmsg);
74     }
75 greg 2.39 /* 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 greg 2.1 psp = pmat->cmem;
84     for (y = 0; y < yr; y++) { /* read it in */
85 greg 2.38 COLOR col;
86 greg 2.1 int x;
87 greg 2.39 if (flat_file ? getbinary(scanline, sizeof(COLR), xr, fp) != xr :
88     freadcolrs(scanline, xr, fp) < 0) {
89 greg 2.1 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 greg 2.38 if (!scanline[x][EXP])
96     continue; /* skip zeroes */
97     colr_color(col, scanline[x]);
98     multcolor(col, scv);
99     addcolor(psp, col);
100 greg 2.1 }
101     }
102     fclose(fp); /* done this picture */
103     }
104     free(scanline);
105 greg 2.30 i = cm_write(pmat, myDT, fout); /* write picture */
106     cm_free(pmat); /* free data */
107     return(i);
108 greg 2.1 }
109    
110 greg 2.11 /* check to see if a string contains a %d or %o specification */
111     static int
112     hasNumberFormat(const char *s)
113 greg 2.1 {
114 greg 2.24 if (s == NULL)
115     return(0);
116    
117 greg 2.18 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 greg 2.1 }
134    
135     int
136     main(int argc, char *argv[])
137     {
138 greg 2.34 int skyfmt = DTfromHeader;
139 greg 2.30 int outfmt = DTascii;
140 greg 2.34 int headout = 1;
141     int nsteps = 0;
142 greg 2.24 char *ofspec = NULL;
143     FILE *ofp = stdout;
144     CMATRIX *cmtx; /* component vector/matrix result */
145     char fnbuf[256];
146     int a, i;
147 greg 2.1
148     progname = argv[0];
149 greg 2.24 /* get options */
150 greg 2.25 for (a = 1; a < argc && argv[a][0] == '-'; a++)
151     switch (argv[a][1]) {
152 greg 2.24 case 'n':
153     nsteps = atoi(argv[++a]);
154 greg 2.31 if (nsteps < 0)
155 greg 2.24 goto userr;
156 greg 2.34 skyfmt = nsteps ? DTascii : DTfromHeader;
157     break;
158     case 'h':
159     headout = !headout;
160 greg 2.24 break;
161 greg 2.25 case 'i':
162     switch (argv[a][2]) {
163     case 'f':
164     skyfmt = DTfloat;
165     break;
166     case 'd':
167     skyfmt = DTdouble;
168     break;
169     case 'a':
170     skyfmt = DTascii;
171     break;
172     default:
173     goto userr;
174     }
175     break;
176 greg 2.30 case 'o':
177     switch (argv[a][2]) {
178     case '\0': /* output specification (not format) */
179     ofspec = argv[++a];
180     break;
181     case 'f':
182     outfmt = DTfloat;
183     break;
184     case 'd':
185     outfmt = DTdouble;
186     break;
187     case 'a':
188     outfmt = DTascii;
189     break;
190 greg 2.43 case 'c':
191     outfmt = DTrgbe;
192     break;
193 greg 2.30 default:
194     goto userr;
195     }
196     break;
197 greg 2.24 default:
198     goto userr;
199     }
200     if ((argc-a < 1) | (argc-a > 4))
201     goto userr;
202 greg 2.1
203 greg 2.24 if (argc-a > 2) { /* VTDs expression */
204 greg 2.36 CMATRIX *smtx, *Dmat, *Tmat, *imtx;
205     const char *ccp;
206 greg 2.24 /* get sky vector/matrix */
207 greg 2.25 smtx = cm_load(argv[a+3], 0, nsteps, skyfmt);
208 greg 2.35 nsteps = smtx->ncols;
209 greg 2.12 /* load BSDF */
210 greg 2.36 if (argv[a+1][0] != '!' &&
211     (ccp = strrchr(argv[a+1], '.')) != NULL &&
212     !strcasecmp(ccp+1, "XML"))
213     Tmat = cm_loadBTDF(argv[a+1]);
214     else
215     Tmat = cm_load(argv[a+1], 0, 0, DTfromHeader);
216 greg 2.5 /* load Daylight matrix */
217 greg 2.36 Dmat = cm_load(argv[a+2], Tmat->ncols,
218 greg 2.24 smtx->nrows, DTfromHeader);
219 greg 2.1 /* multiply vector through */
220 greg 2.24 imtx = cm_multiply(Dmat, smtx);
221     cm_free(Dmat); cm_free(smtx);
222 greg 2.29 cmtx = cm_multiply(Tmat, imtx);
223     cm_free(Tmat);
224 greg 2.24 cm_free(imtx);
225     } else { /* sky vector/matrix only */
226 greg 2.25 cmtx = cm_load(argv[a+1], 0, nsteps, skyfmt);
227 greg 2.35 nsteps = cmtx->ncols;
228 greg 2.24 }
229     /* prepare output stream */
230     if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) {
231     sprintf(fnbuf, ofspec, 1);
232     ofspec = fnbuf;
233     }
234     if (ofspec != NULL && !hasNumberFormat(ofspec)) {
235     if ((ofp = fopen(ofspec, "w")) == NULL) {
236     fprintf(stderr, "%s: cannot open '%s' for output\n",
237     progname, ofspec);
238     return(1);
239     }
240     ofspec = NULL; /* only need to open once */
241 greg 2.12 }
242 greg 2.24 if (hasNumberFormat(argv[a])) { /* generating image(s) */
243 greg 2.44 if (outfmt != DTrgbe) {
244     error(WARNING, "changing output type to -oc");
245     outfmt = DTrgbe;
246     }
247 greg 2.24 if (ofspec == NULL) {
248     SET_FILE_BINARY(ofp);
249     newheader("RADIANCE", ofp);
250     printargs(argc, argv, ofp);
251     fputnow(ofp);
252     }
253     if (nsteps > 1) /* multiple output frames? */
254     for (i = 0; i < nsteps; i++) {
255     CMATRIX *cvec = cm_column(cmtx, i);
256     if (ofspec != NULL) {
257 greg 2.40 sprintf(fnbuf, ofspec, i);
258 greg 2.24 if ((ofp = fopen(fnbuf, "wb")) == NULL) {
259     fprintf(stderr,
260     "%s: cannot open '%s' for output\n",
261     progname, fnbuf);
262     return(1);
263     }
264     newheader("RADIANCE", ofp);
265     printargs(argc, argv, ofp);
266     fputnow(ofp);
267     }
268 greg 2.40 fprintf(ofp, "FRAME=%d\n", i);
269 greg 2.24 if (!sum_images(argv[a], cvec, ofp))
270     return(1);
271     if (ofspec != NULL) {
272     if (fclose(ofp) == EOF) {
273     fprintf(stderr,
274     "%s: error writing to '%s'\n",
275     progname, fnbuf);
276     return(1);
277     }
278     ofp = stdout;
279     }
280     cm_free(cvec);
281     }
282     else if (!sum_images(argv[a], cmtx, ofp))
283 greg 2.1 return(1);
284 greg 2.24 } else { /* generating vector/matrix */
285     CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader);
286     CMATRIX *rmtx = cm_multiply(Vmat, cmtx);
287 greg 2.1 cm_free(Vmat);
288 greg 2.30 if (ofspec != NULL) { /* multiple vector files? */
289     const char *wtype = (outfmt==DTascii) ? "w" : "wb";
290 greg 2.24 for (i = 0; i < nsteps; i++) {
291     CMATRIX *rvec = cm_column(rmtx, i);
292 greg 2.40 sprintf(fnbuf, ofspec, i);
293 greg 2.30 if ((ofp = fopen(fnbuf, wtype)) == NULL) {
294 greg 2.24 fprintf(stderr,
295     "%s: cannot open '%s' for output\n",
296     progname, fnbuf);
297     return(1);
298     }
299 greg 2.31 #ifdef getc_unlocked
300     flockfile(ofp);
301     #endif
302 greg 2.34 if (headout) { /* header output */
303     newheader("RADIANCE", ofp);
304     printargs(argc, argv, ofp);
305     fputnow(ofp);
306 greg 2.40 fprintf(ofp, "FRAME=%d\n", i);
307 greg 2.34 fprintf(ofp, "NROWS=%d\n", rvec->nrows);
308     fputs("NCOLS=1\nNCOMP=3\n", ofp);
309 greg 2.42 if ((outfmt == 'f') | (outfmt == 'd'))
310     fputendian(ofp);
311 greg 2.34 fputformat((char *)cm_fmt_id[outfmt], ofp);
312     fputc('\n', ofp);
313     }
314 greg 2.30 cm_write(rvec, outfmt, ofp);
315 greg 2.24 if (fclose(ofp) == EOF) {
316     fprintf(stderr,
317     "%s: error writing to '%s'\n",
318     progname, fnbuf);
319     return(1);
320     }
321     ofp = stdout;
322     cm_free(rvec);
323     }
324 greg 2.30 } else {
325 greg 2.31 #ifdef getc_unlocked
326     flockfile(ofp);
327     #endif
328 greg 2.30 if (outfmt != DTascii)
329     SET_FILE_BINARY(ofp);
330 greg 2.34 if (headout) { /* header output */
331 greg 2.30 newheader("RADIANCE", ofp);
332     printargs(argc, argv, ofp);
333     fputnow(ofp);
334 greg 2.33 fprintf(ofp, "NROWS=%d\n", rmtx->nrows);
335 greg 2.31 fprintf(ofp, "NCOLS=%d\n", rmtx->ncols);
336     fputs("NCOMP=3\n", ofp);
337 greg 2.42 if ((outfmt == 'f') | (outfmt == 'd'))
338     fputendian(ofp);
339 greg 2.30 fputformat((char *)cm_fmt_id[outfmt], ofp);
340     fputc('\n', ofp);
341     }
342     cm_write(rmtx, outfmt, ofp);
343     }
344 greg 2.24 cm_free(rmtx);
345     }
346     if (fflush(ofp) == EOF) { /* final clean-up */
347     fprintf(stderr, "%s: write error on output\n", progname);
348     return(1);
349 greg 2.1 }
350 greg 2.24 cm_free(cmtx);
351 greg 2.1 return(0);
352 greg 2.24 userr:
353 greg 2.44 fprintf(stderr, "Usage: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d|c}] DCspec [skyf]\n",
354 greg 2.24 progname);
355 greg 2.44 fprintf(stderr, " or: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d|c}] Vspec Tbsdf Dmat.dat [skyf]\n",
356 greg 2.24 progname);
357     return(1);
358 greg 2.1 }