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root/radiance/ray/src/util/dctimestep.c
Revision: 2.37
Committed: Sun Mar 6 01:13:18 2016 UTC (6 years, 9 months ago) by schorsch
Content type: text/plain
Branch: MAIN
CVS Tags: rad5R1
Changes since 2.36: +2 -1 lines
Log Message:
Prepare for SCons build on Win32 and Win64

File Contents

# Content
1 #ifndef lint
2 static const char RCSid[] = "$Id: dctimestep.c,v 2.36 2015/07/14 16:08:28 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 COLOR *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 char fname[1024];
34 FILE *fp;
35 int dt, xr, yr;
36 COLORV *psp;
37 char *err;
38 /* check for zero */
39 if ((scv[RED] == 0) & (scv[GRN] == 0) & (scv[BLU] == 0) &&
40 (myDT != DTfromHeader) | (i < cv->nrows-1))
41 continue;
42 /* open next picture */
43 sprintf(fname, fspec, i);
44 if ((fp = fopen(fname, "rb")) == NULL) {
45 sprintf(errmsg, "cannot open picture '%s'", fname);
46 error(SYSTEM, errmsg);
47 }
48 dt = DTfromHeader;
49 if ((err = cm_getheader(&dt, NULL, NULL, fp)) != NULL)
50 error(USER, err);
51 if ((dt != DTrgbe) & (dt != DTxyze) ||
52 !fscnresolu(&xr, &yr, fp)) {
53 sprintf(errmsg, "file '%s' not a picture", fname);
54 error(USER, errmsg);
55 }
56 if (myDT == DTfromHeader) { /* on first one */
57 myDT = dt;
58 myXR = xr; myYR = yr;
59 scanline = (COLOR *)malloc(sizeof(COLOR)*myXR);
60 if (scanline == NULL)
61 error(SYSTEM, "out of memory in sum_images()");
62 pmat = cm_alloc(myYR, myXR);
63 memset(pmat->cmem, 0, sizeof(COLOR)*myXR*myYR);
64 /* finish header */
65 fputformat((char *)cm_fmt_id[myDT], fout);
66 fputc('\n', fout);
67 fflush(fout);
68 } else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) {
69 sprintf(errmsg, "picture '%s' format/size mismatch",
70 fname);
71 error(USER, errmsg);
72 }
73 psp = pmat->cmem;
74 for (y = 0; y < yr; y++) { /* read it in */
75 int x;
76 if (freadscan(scanline, xr, fp) < 0) {
77 sprintf(errmsg, "error reading picture '%s'",
78 fname);
79 error(SYSTEM, errmsg);
80 }
81 /* sum in scanline */
82 for (x = 0; x < xr; x++, psp += 3) {
83 multcolor(scanline[x], scv);
84 addcolor(psp, scanline[x]);
85 }
86 }
87 fclose(fp); /* done this picture */
88 }
89 free(scanline);
90 i = cm_write(pmat, myDT, fout); /* write picture */
91 cm_free(pmat); /* free data */
92 return(i);
93 }
94
95 /* check to see if a string contains a %d or %o specification */
96 static int
97 hasNumberFormat(const char *s)
98 {
99 if (s == NULL)
100 return(0);
101
102 while (*s) {
103 while (*s != '%')
104 if (!*s++)
105 return(0);
106 if (*++s == '%') { /* ignore "%%" */
107 ++s;
108 continue;
109 }
110 while (isdigit(*s)) /* field length */
111 ++s;
112 /* field we'll use? */
113 if ((*s == 'd') | (*s == 'i') | (*s == 'o') |
114 (*s == 'x') | (*s == 'X'))
115 return(1);
116 }
117 return(0); /* didn't find one */
118 }
119
120 int
121 main(int argc, char *argv[])
122 {
123 int skyfmt = DTfromHeader;
124 int outfmt = DTascii;
125 int headout = 1;
126 int nsteps = 0;
127 char *ofspec = NULL;
128 FILE *ofp = stdout;
129 CMATRIX *cmtx; /* component vector/matrix result */
130 char fnbuf[256];
131 int a, i;
132
133 progname = argv[0];
134 /* get options */
135 for (a = 1; a < argc && argv[a][0] == '-'; a++)
136 switch (argv[a][1]) {
137 case 'n':
138 nsteps = atoi(argv[++a]);
139 if (nsteps < 0)
140 goto userr;
141 skyfmt = nsteps ? DTascii : DTfromHeader;
142 break;
143 case 'h':
144 headout = !headout;
145 break;
146 case 'i':
147 switch (argv[a][2]) {
148 case 'f':
149 skyfmt = DTfloat;
150 break;
151 case 'd':
152 skyfmt = DTdouble;
153 break;
154 case 'a':
155 skyfmt = DTascii;
156 break;
157 default:
158 goto userr;
159 }
160 break;
161 case 'o':
162 switch (argv[a][2]) {
163 case '\0': /* output specification (not format) */
164 ofspec = argv[++a];
165 break;
166 case 'f':
167 outfmt = DTfloat;
168 break;
169 case 'd':
170 outfmt = DTdouble;
171 break;
172 case 'a':
173 outfmt = DTascii;
174 break;
175 default:
176 goto userr;
177 }
178 break;
179 default:
180 goto userr;
181 }
182 if ((argc-a < 1) | (argc-a > 4))
183 goto userr;
184
185 if (argc-a > 2) { /* VTDs expression */
186 CMATRIX *smtx, *Dmat, *Tmat, *imtx;
187 const char *ccp;
188 /* get sky vector/matrix */
189 smtx = cm_load(argv[a+3], 0, nsteps, skyfmt);
190 nsteps = smtx->ncols;
191 /* load BSDF */
192 if (argv[a+1][0] != '!' &&
193 (ccp = strrchr(argv[a+1], '.')) != NULL &&
194 !strcasecmp(ccp+1, "XML"))
195 Tmat = cm_loadBTDF(argv[a+1]);
196 else
197 Tmat = cm_load(argv[a+1], 0, 0, DTfromHeader);
198 /* load Daylight matrix */
199 Dmat = cm_load(argv[a+2], Tmat->ncols,
200 smtx->nrows, DTfromHeader);
201 /* multiply vector through */
202 imtx = cm_multiply(Dmat, smtx);
203 cm_free(Dmat); cm_free(smtx);
204 cmtx = cm_multiply(Tmat, imtx);
205 cm_free(Tmat);
206 cm_free(imtx);
207 } else { /* sky vector/matrix only */
208 cmtx = cm_load(argv[a+1], 0, nsteps, skyfmt);
209 nsteps = cmtx->ncols;
210 }
211 /* prepare output stream */
212 if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) {
213 sprintf(fnbuf, ofspec, 1);
214 ofspec = fnbuf;
215 }
216 if (ofspec != NULL && !hasNumberFormat(ofspec)) {
217 if ((ofp = fopen(ofspec, "w")) == NULL) {
218 fprintf(stderr, "%s: cannot open '%s' for output\n",
219 progname, ofspec);
220 return(1);
221 }
222 ofspec = NULL; /* only need to open once */
223 }
224 if (hasNumberFormat(argv[a])) { /* generating image(s) */
225 if (ofspec == NULL) {
226 SET_FILE_BINARY(ofp);
227 newheader("RADIANCE", ofp);
228 printargs(argc, argv, ofp);
229 fputnow(ofp);
230 }
231 if (nsteps > 1) /* multiple output frames? */
232 for (i = 0; i < nsteps; i++) {
233 CMATRIX *cvec = cm_column(cmtx, i);
234 if (ofspec != NULL) {
235 sprintf(fnbuf, ofspec, i+1);
236 if ((ofp = fopen(fnbuf, "wb")) == NULL) {
237 fprintf(stderr,
238 "%s: cannot open '%s' for output\n",
239 progname, fnbuf);
240 return(1);
241 }
242 newheader("RADIANCE", ofp);
243 printargs(argc, argv, ofp);
244 fputnow(ofp);
245 }
246 fprintf(ofp, "FRAME=%d\n", i+1);
247 if (!sum_images(argv[a], cvec, ofp))
248 return(1);
249 if (ofspec != NULL) {
250 if (fclose(ofp) == EOF) {
251 fprintf(stderr,
252 "%s: error writing to '%s'\n",
253 progname, fnbuf);
254 return(1);
255 }
256 ofp = stdout;
257 }
258 cm_free(cvec);
259 }
260 else if (!sum_images(argv[a], cmtx, ofp))
261 return(1);
262 } else { /* generating vector/matrix */
263 CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader);
264 CMATRIX *rmtx = cm_multiply(Vmat, cmtx);
265 cm_free(Vmat);
266 if (ofspec != NULL) { /* multiple vector files? */
267 const char *wtype = (outfmt==DTascii) ? "w" : "wb";
268 for (i = 0; i < nsteps; i++) {
269 CMATRIX *rvec = cm_column(rmtx, i);
270 sprintf(fnbuf, ofspec, i+1);
271 if ((ofp = fopen(fnbuf, wtype)) == NULL) {
272 fprintf(stderr,
273 "%s: cannot open '%s' for output\n",
274 progname, fnbuf);
275 return(1);
276 }
277 #ifdef getc_unlocked
278 flockfile(ofp);
279 #endif
280 if (headout) { /* header output */
281 newheader("RADIANCE", ofp);
282 printargs(argc, argv, ofp);
283 fputnow(ofp);
284 fprintf(ofp, "FRAME=%d\n", i+1);
285 fprintf(ofp, "NROWS=%d\n", rvec->nrows);
286 fputs("NCOLS=1\nNCOMP=3\n", ofp);
287 fputformat((char *)cm_fmt_id[outfmt], ofp);
288 fputc('\n', ofp);
289 }
290 cm_write(rvec, outfmt, ofp);
291 if (fclose(ofp) == EOF) {
292 fprintf(stderr,
293 "%s: error writing to '%s'\n",
294 progname, fnbuf);
295 return(1);
296 }
297 ofp = stdout;
298 cm_free(rvec);
299 }
300 } else {
301 #ifdef getc_unlocked
302 flockfile(ofp);
303 #endif
304 if (outfmt != DTascii)
305 SET_FILE_BINARY(ofp);
306 if (headout) { /* header output */
307 newheader("RADIANCE", ofp);
308 printargs(argc, argv, ofp);
309 fputnow(ofp);
310 fprintf(ofp, "NROWS=%d\n", rmtx->nrows);
311 fprintf(ofp, "NCOLS=%d\n", rmtx->ncols);
312 fputs("NCOMP=3\n", ofp);
313 fputformat((char *)cm_fmt_id[outfmt], ofp);
314 fputc('\n', ofp);
315 }
316 cm_write(rmtx, outfmt, ofp);
317 }
318 cm_free(rmtx);
319 }
320 if (fflush(ofp) == EOF) { /* final clean-up */
321 fprintf(stderr, "%s: write error on output\n", progname);
322 return(1);
323 }
324 cm_free(cmtx);
325 return(0);
326 userr:
327 fprintf(stderr, "Usage: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d}] DCspec [skyf]\n",
328 progname);
329 fprintf(stderr, " or: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d}] Vspec Tbsdf Dmat.dat [skyf]\n",
330 progname);
331 return(1);
332 }