1 |
greg |
2.1 |
#ifndef lint |
2 |
greg |
2.50 |
static const char RCSid[] = "$Id: dctimestep.c,v 2.49 2022/03/11 02:44:33 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 |
2.50 |
#ifdef getc_unlocked |
51 |
|
|
flockfile(fp); |
52 |
|
|
#endif |
53 |
greg |
2.31 |
dt = DTfromHeader; |
54 |
greg |
2.45 |
if ((err = cm_getheader(&dt, NULL, NULL, NULL, NULL, fp)) != NULL) |
55 |
greg |
2.31 |
error(USER, err); |
56 |
greg |
2.1 |
if ((dt != DTrgbe) & (dt != DTxyze) || |
57 |
|
|
!fscnresolu(&xr, &yr, fp)) { |
58 |
|
|
sprintf(errmsg, "file '%s' not a picture", fname); |
59 |
|
|
error(USER, errmsg); |
60 |
|
|
} |
61 |
|
|
if (myDT == DTfromHeader) { /* on first one */ |
62 |
|
|
myDT = dt; |
63 |
|
|
myXR = xr; myYR = yr; |
64 |
greg |
2.38 |
scanline = (COLR *)malloc(sizeof(COLR)*myXR); |
65 |
greg |
2.1 |
if (scanline == NULL) |
66 |
|
|
error(SYSTEM, "out of memory in sum_images()"); |
67 |
|
|
pmat = cm_alloc(myYR, myXR); |
68 |
|
|
memset(pmat->cmem, 0, sizeof(COLOR)*myXR*myYR); |
69 |
greg |
2.2 |
/* finish header */ |
70 |
greg |
2.46 |
fputformat(cm_fmt_id[myDT], fout); |
71 |
greg |
2.13 |
fputc('\n', fout); |
72 |
|
|
fflush(fout); |
73 |
greg |
2.1 |
} else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) { |
74 |
|
|
sprintf(errmsg, "picture '%s' format/size mismatch", |
75 |
|
|
fname); |
76 |
|
|
error(USER, errmsg); |
77 |
|
|
} |
78 |
greg |
2.39 |
/* flat file check */ |
79 |
|
|
if ((data_start = ftell(fp)) > 0 && fseek(fp, 0L, SEEK_END) == 0) { |
80 |
|
|
flat_file = (ftell(fp) == data_start + sizeof(COLR)*xr*yr); |
81 |
|
|
if (fseek(fp, data_start, SEEK_SET) < 0) { |
82 |
|
|
sprintf(errmsg, "cannot seek on picture '%s'", fname); |
83 |
|
|
error(SYSTEM, errmsg); |
84 |
|
|
} |
85 |
|
|
} |
86 |
greg |
2.1 |
psp = pmat->cmem; |
87 |
|
|
for (y = 0; y < yr; y++) { /* read it in */ |
88 |
greg |
2.38 |
COLOR col; |
89 |
greg |
2.1 |
int x; |
90 |
greg |
2.39 |
if (flat_file ? getbinary(scanline, sizeof(COLR), xr, fp) != xr : |
91 |
|
|
freadcolrs(scanline, xr, fp) < 0) { |
92 |
greg |
2.1 |
sprintf(errmsg, "error reading picture '%s'", |
93 |
|
|
fname); |
94 |
|
|
error(SYSTEM, errmsg); |
95 |
|
|
} |
96 |
|
|
/* sum in scanline */ |
97 |
|
|
for (x = 0; x < xr; x++, psp += 3) { |
98 |
greg |
2.38 |
if (!scanline[x][EXP]) |
99 |
|
|
continue; /* skip zeroes */ |
100 |
|
|
colr_color(col, scanline[x]); |
101 |
|
|
multcolor(col, scv); |
102 |
|
|
addcolor(psp, col); |
103 |
greg |
2.1 |
} |
104 |
|
|
} |
105 |
|
|
fclose(fp); /* done this picture */ |
106 |
|
|
} |
107 |
|
|
free(scanline); |
108 |
greg |
2.30 |
i = cm_write(pmat, myDT, fout); /* write picture */ |
109 |
|
|
cm_free(pmat); /* free data */ |
110 |
|
|
return(i); |
111 |
greg |
2.1 |
} |
112 |
|
|
|
113 |
greg |
2.49 |
/* adjust matrix dimensions according to user size(s) */ |
114 |
|
|
static int |
115 |
|
|
alt_dim(CMATRIX *cm, int nr, int nc) |
116 |
|
|
{ |
117 |
|
|
if ((nr <= 0) & (nc <= 0)) |
118 |
|
|
return(0); |
119 |
|
|
if ((nr == cm->nrows) & (nc == cm->ncols)) |
120 |
|
|
return(0); |
121 |
|
|
if (nr > 0) { |
122 |
|
|
if (nc <= 0) |
123 |
|
|
nc = cm->nrows*cm->ncols/nr; |
124 |
|
|
if (nr*nc != cm->nrows*cm->ncols) { |
125 |
|
|
fprintf(stderr, "Bad dimensions: %dx%d != %dx%d\n", |
126 |
|
|
nr, nc, cm->nrows, cm->ncols); |
127 |
|
|
return(-1); |
128 |
|
|
} |
129 |
|
|
} else /* nc > 0 */ { |
130 |
|
|
nr = cm->nrows*cm->ncols/nc; |
131 |
|
|
if (nc*nr != cm->nrows*cm->ncols) { |
132 |
|
|
fprintf(stderr, "Bad dimensions: %d does not divide %dx%d evenly\n", |
133 |
|
|
nc, cm->nrows, cm->ncols); |
134 |
|
|
return(-1); |
135 |
|
|
} |
136 |
|
|
} |
137 |
|
|
cm->nrows = nr; |
138 |
|
|
cm->ncols = nc; |
139 |
|
|
return(1); |
140 |
|
|
} |
141 |
|
|
|
142 |
greg |
2.11 |
/* check to see if a string contains a %d or %o specification */ |
143 |
|
|
static int |
144 |
|
|
hasNumberFormat(const char *s) |
145 |
greg |
2.1 |
{ |
146 |
greg |
2.24 |
if (s == NULL) |
147 |
|
|
return(0); |
148 |
|
|
|
149 |
greg |
2.18 |
while (*s) { |
150 |
|
|
while (*s != '%') |
151 |
|
|
if (!*s++) |
152 |
|
|
return(0); |
153 |
|
|
if (*++s == '%') { /* ignore "%%" */ |
154 |
|
|
++s; |
155 |
|
|
continue; |
156 |
|
|
} |
157 |
|
|
while (isdigit(*s)) /* field length */ |
158 |
|
|
++s; |
159 |
|
|
/* field we'll use? */ |
160 |
|
|
if ((*s == 'd') | (*s == 'i') | (*s == 'o') | |
161 |
|
|
(*s == 'x') | (*s == 'X')) |
162 |
|
|
return(1); |
163 |
|
|
} |
164 |
|
|
return(0); /* didn't find one */ |
165 |
greg |
2.1 |
} |
166 |
|
|
|
167 |
|
|
int |
168 |
|
|
main(int argc, char *argv[]) |
169 |
|
|
{ |
170 |
greg |
2.34 |
int skyfmt = DTfromHeader; |
171 |
greg |
2.30 |
int outfmt = DTascii; |
172 |
greg |
2.34 |
int headout = 1; |
173 |
|
|
int nsteps = 0; |
174 |
greg |
2.24 |
char *ofspec = NULL; |
175 |
|
|
FILE *ofp = stdout; |
176 |
greg |
2.47 |
int xres=0, yres=0; |
177 |
greg |
2.24 |
CMATRIX *cmtx; /* component vector/matrix result */ |
178 |
|
|
char fnbuf[256]; |
179 |
|
|
int a, i; |
180 |
greg |
2.1 |
|
181 |
|
|
progname = argv[0]; |
182 |
greg |
2.24 |
/* get options */ |
183 |
greg |
2.25 |
for (a = 1; a < argc && argv[a][0] == '-'; a++) |
184 |
|
|
switch (argv[a][1]) { |
185 |
greg |
2.24 |
case 'n': |
186 |
|
|
nsteps = atoi(argv[++a]); |
187 |
greg |
2.31 |
if (nsteps < 0) |
188 |
greg |
2.24 |
goto userr; |
189 |
greg |
2.34 |
skyfmt = nsteps ? DTascii : DTfromHeader; |
190 |
|
|
break; |
191 |
|
|
case 'h': |
192 |
|
|
headout = !headout; |
193 |
greg |
2.24 |
break; |
194 |
greg |
2.25 |
case 'i': |
195 |
|
|
switch (argv[a][2]) { |
196 |
|
|
case 'f': |
197 |
|
|
skyfmt = DTfloat; |
198 |
|
|
break; |
199 |
|
|
case 'd': |
200 |
|
|
skyfmt = DTdouble; |
201 |
|
|
break; |
202 |
|
|
case 'a': |
203 |
|
|
skyfmt = DTascii; |
204 |
|
|
break; |
205 |
|
|
default: |
206 |
|
|
goto userr; |
207 |
|
|
} |
208 |
|
|
break; |
209 |
greg |
2.30 |
case 'o': |
210 |
|
|
switch (argv[a][2]) { |
211 |
|
|
case '\0': /* output specification (not format) */ |
212 |
|
|
ofspec = argv[++a]; |
213 |
|
|
break; |
214 |
|
|
case 'f': |
215 |
|
|
outfmt = DTfloat; |
216 |
|
|
break; |
217 |
|
|
case 'd': |
218 |
|
|
outfmt = DTdouble; |
219 |
|
|
break; |
220 |
|
|
case 'a': |
221 |
|
|
outfmt = DTascii; |
222 |
|
|
break; |
223 |
greg |
2.43 |
case 'c': |
224 |
|
|
outfmt = DTrgbe; |
225 |
|
|
break; |
226 |
greg |
2.30 |
default: |
227 |
|
|
goto userr; |
228 |
|
|
} |
229 |
|
|
break; |
230 |
greg |
2.47 |
case 'x': |
231 |
|
|
xres = atoi(argv[++a]); |
232 |
|
|
break; |
233 |
|
|
case 'y': |
234 |
|
|
yres = atoi(argv[++a]); |
235 |
|
|
break; |
236 |
greg |
2.24 |
default: |
237 |
|
|
goto userr; |
238 |
|
|
} |
239 |
|
|
if ((argc-a < 1) | (argc-a > 4)) |
240 |
|
|
goto userr; |
241 |
greg |
2.1 |
|
242 |
greg |
2.24 |
if (argc-a > 2) { /* VTDs expression */ |
243 |
greg |
2.36 |
CMATRIX *smtx, *Dmat, *Tmat, *imtx; |
244 |
|
|
const char *ccp; |
245 |
greg |
2.24 |
/* get sky vector/matrix */ |
246 |
greg |
2.25 |
smtx = cm_load(argv[a+3], 0, nsteps, skyfmt); |
247 |
greg |
2.35 |
nsteps = smtx->ncols; |
248 |
greg |
2.12 |
/* load BSDF */ |
249 |
greg |
2.36 |
if (argv[a+1][0] != '!' && |
250 |
|
|
(ccp = strrchr(argv[a+1], '.')) != NULL && |
251 |
|
|
!strcasecmp(ccp+1, "XML")) |
252 |
|
|
Tmat = cm_loadBTDF(argv[a+1]); |
253 |
|
|
else |
254 |
|
|
Tmat = cm_load(argv[a+1], 0, 0, DTfromHeader); |
255 |
greg |
2.5 |
/* load Daylight matrix */ |
256 |
greg |
2.36 |
Dmat = cm_load(argv[a+2], Tmat->ncols, |
257 |
greg |
2.24 |
smtx->nrows, DTfromHeader); |
258 |
greg |
2.1 |
/* multiply vector through */ |
259 |
greg |
2.24 |
imtx = cm_multiply(Dmat, smtx); |
260 |
|
|
cm_free(Dmat); cm_free(smtx); |
261 |
greg |
2.29 |
cmtx = cm_multiply(Tmat, imtx); |
262 |
|
|
cm_free(Tmat); |
263 |
greg |
2.24 |
cm_free(imtx); |
264 |
|
|
} else { /* sky vector/matrix only */ |
265 |
greg |
2.25 |
cmtx = cm_load(argv[a+1], 0, nsteps, skyfmt); |
266 |
greg |
2.35 |
nsteps = cmtx->ncols; |
267 |
greg |
2.24 |
} |
268 |
|
|
/* prepare output stream */ |
269 |
|
|
if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) { |
270 |
|
|
sprintf(fnbuf, ofspec, 1); |
271 |
|
|
ofspec = fnbuf; |
272 |
|
|
} |
273 |
|
|
if (ofspec != NULL && !hasNumberFormat(ofspec)) { |
274 |
|
|
if ((ofp = fopen(ofspec, "w")) == NULL) { |
275 |
|
|
fprintf(stderr, "%s: cannot open '%s' for output\n", |
276 |
|
|
progname, ofspec); |
277 |
|
|
return(1); |
278 |
|
|
} |
279 |
|
|
ofspec = NULL; /* only need to open once */ |
280 |
greg |
2.12 |
} |
281 |
greg |
2.24 |
if (hasNumberFormat(argv[a])) { /* generating image(s) */ |
282 |
greg |
2.44 |
if (outfmt != DTrgbe) { |
283 |
|
|
error(WARNING, "changing output type to -oc"); |
284 |
|
|
outfmt = DTrgbe; |
285 |
|
|
} |
286 |
greg |
2.24 |
if (ofspec == NULL) { |
287 |
|
|
SET_FILE_BINARY(ofp); |
288 |
|
|
newheader("RADIANCE", ofp); |
289 |
|
|
printargs(argc, argv, ofp); |
290 |
|
|
fputnow(ofp); |
291 |
|
|
} |
292 |
|
|
if (nsteps > 1) /* multiple output frames? */ |
293 |
|
|
for (i = 0; i < nsteps; i++) { |
294 |
|
|
CMATRIX *cvec = cm_column(cmtx, i); |
295 |
|
|
if (ofspec != NULL) { |
296 |
greg |
2.40 |
sprintf(fnbuf, ofspec, i); |
297 |
greg |
2.24 |
if ((ofp = fopen(fnbuf, "wb")) == NULL) { |
298 |
|
|
fprintf(stderr, |
299 |
|
|
"%s: cannot open '%s' for output\n", |
300 |
|
|
progname, fnbuf); |
301 |
|
|
return(1); |
302 |
|
|
} |
303 |
|
|
newheader("RADIANCE", ofp); |
304 |
|
|
printargs(argc, argv, ofp); |
305 |
|
|
fputnow(ofp); |
306 |
|
|
} |
307 |
greg |
2.40 |
fprintf(ofp, "FRAME=%d\n", i); |
308 |
greg |
2.24 |
if (!sum_images(argv[a], cvec, ofp)) |
309 |
|
|
return(1); |
310 |
|
|
if (ofspec != NULL) { |
311 |
|
|
if (fclose(ofp) == EOF) { |
312 |
|
|
fprintf(stderr, |
313 |
|
|
"%s: error writing to '%s'\n", |
314 |
|
|
progname, fnbuf); |
315 |
|
|
return(1); |
316 |
|
|
} |
317 |
|
|
ofp = stdout; |
318 |
|
|
} |
319 |
|
|
cm_free(cvec); |
320 |
|
|
} |
321 |
|
|
else if (!sum_images(argv[a], cmtx, ofp)) |
322 |
greg |
2.1 |
return(1); |
323 |
greg |
2.24 |
} else { /* generating vector/matrix */ |
324 |
|
|
CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader); |
325 |
|
|
CMATRIX *rmtx = cm_multiply(Vmat, cmtx); |
326 |
greg |
2.1 |
cm_free(Vmat); |
327 |
greg |
2.30 |
if (ofspec != NULL) { /* multiple vector files? */ |
328 |
|
|
const char *wtype = (outfmt==DTascii) ? "w" : "wb"; |
329 |
greg |
2.24 |
for (i = 0; i < nsteps; i++) { |
330 |
|
|
CMATRIX *rvec = cm_column(rmtx, i); |
331 |
greg |
2.49 |
if (alt_dim(rvec, yres, xres) < 0) |
332 |
|
|
return(1); |
333 |
greg |
2.40 |
sprintf(fnbuf, ofspec, i); |
334 |
greg |
2.30 |
if ((ofp = fopen(fnbuf, wtype)) == NULL) { |
335 |
greg |
2.24 |
fprintf(stderr, |
336 |
|
|
"%s: cannot open '%s' for output\n", |
337 |
|
|
progname, fnbuf); |
338 |
|
|
return(1); |
339 |
|
|
} |
340 |
greg |
2.31 |
#ifdef getc_unlocked |
341 |
|
|
flockfile(ofp); |
342 |
|
|
#endif |
343 |
greg |
2.34 |
if (headout) { /* header output */ |
344 |
|
|
newheader("RADIANCE", ofp); |
345 |
|
|
printargs(argc, argv, ofp); |
346 |
|
|
fputnow(ofp); |
347 |
greg |
2.40 |
fprintf(ofp, "FRAME=%d\n", i); |
348 |
greg |
2.47 |
if ((outfmt != DTrgbe) & (outfmt != DTxyze)) { |
349 |
|
|
fprintf(ofp, "NROWS=%d\n", rvec->nrows); |
350 |
|
|
fprintf(ofp, "NCOLS=%d\n", rvec->ncols); |
351 |
|
|
fputs("NCOMP=3\n", ofp); |
352 |
|
|
} |
353 |
|
|
if ((outfmt == DTfloat) | (outfmt == DTdouble)) |
354 |
greg |
2.42 |
fputendian(ofp); |
355 |
greg |
2.46 |
fputformat(cm_fmt_id[outfmt], ofp); |
356 |
greg |
2.34 |
fputc('\n', ofp); |
357 |
|
|
} |
358 |
greg |
2.30 |
cm_write(rvec, outfmt, ofp); |
359 |
greg |
2.24 |
if (fclose(ofp) == EOF) { |
360 |
|
|
fprintf(stderr, |
361 |
|
|
"%s: error writing to '%s'\n", |
362 |
|
|
progname, fnbuf); |
363 |
|
|
return(1); |
364 |
|
|
} |
365 |
|
|
ofp = stdout; |
366 |
|
|
cm_free(rvec); |
367 |
|
|
} |
368 |
greg |
2.30 |
} else { |
369 |
greg |
2.31 |
#ifdef getc_unlocked |
370 |
|
|
flockfile(ofp); |
371 |
|
|
#endif |
372 |
greg |
2.30 |
if (outfmt != DTascii) |
373 |
|
|
SET_FILE_BINARY(ofp); |
374 |
greg |
2.49 |
if (alt_dim(rmtx, yres, xres) < 0) |
375 |
|
|
return(1); |
376 |
greg |
2.34 |
if (headout) { /* header output */ |
377 |
greg |
2.30 |
newheader("RADIANCE", ofp); |
378 |
|
|
printargs(argc, argv, ofp); |
379 |
|
|
fputnow(ofp); |
380 |
greg |
2.47 |
if ((outfmt != DTrgbe) & (outfmt != DTxyze)) { |
381 |
|
|
fprintf(ofp, "NROWS=%d\n", rmtx->nrows); |
382 |
|
|
fprintf(ofp, "NCOLS=%d\n", rmtx->ncols); |
383 |
|
|
fputs("NCOMP=3\n", ofp); |
384 |
|
|
} |
385 |
|
|
if ((outfmt == DTfloat) | (outfmt == DTdouble)) |
386 |
greg |
2.42 |
fputendian(ofp); |
387 |
greg |
2.46 |
fputformat(cm_fmt_id[outfmt], ofp); |
388 |
greg |
2.30 |
fputc('\n', ofp); |
389 |
|
|
} |
390 |
|
|
cm_write(rmtx, outfmt, ofp); |
391 |
|
|
} |
392 |
greg |
2.24 |
cm_free(rmtx); |
393 |
|
|
} |
394 |
|
|
if (fflush(ofp) == EOF) { /* final clean-up */ |
395 |
|
|
fprintf(stderr, "%s: write error on output\n", progname); |
396 |
|
|
return(1); |
397 |
greg |
2.1 |
} |
398 |
greg |
2.24 |
cm_free(cmtx); |
399 |
greg |
2.1 |
return(0); |
400 |
greg |
2.24 |
userr: |
401 |
greg |
2.48 |
fprintf(stderr, "Usage: %s [-n nsteps][-o ospec][-x xr][-y yr][-i{f|d|h}][-o{f|d|c}] DCspec [skyf]\n", |
402 |
greg |
2.24 |
progname); |
403 |
greg |
2.48 |
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", |
404 |
greg |
2.24 |
progname); |
405 |
|
|
return(1); |
406 |
greg |
2.1 |
} |