1 |
greg |
2.1 |
#ifndef lint |
2 |
greg |
2.30 |
static const char RCSid[] = "$Id: dctimestep.c,v 2.29 2014/01/20 22:18:29 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 |
|
|
#include "standard.h" |
12 |
greg |
2.28 |
#include "cmatrix.h" |
13 |
greg |
2.1 |
#include "platform.h" |
14 |
|
|
#include "resolu.h" |
15 |
|
|
|
16 |
|
|
char *progname; /* global argv[0] */ |
17 |
|
|
|
18 |
greg |
2.24 |
/* Sum together a set of images and write result to fout */ |
19 |
greg |
2.1 |
static int |
20 |
greg |
2.13 |
sum_images(const char *fspec, const CMATRIX *cv, FILE *fout) |
21 |
greg |
2.1 |
{ |
22 |
|
|
int myDT = DTfromHeader; |
23 |
greg |
2.24 |
COLOR *scanline = NULL; |
24 |
|
|
CMATRIX *pmat = NULL; |
25 |
|
|
int myXR=0, myYR=0; |
26 |
greg |
2.1 |
int i, y; |
27 |
|
|
|
28 |
|
|
if (cv->ncols != 1) |
29 |
|
|
error(INTERNAL, "expected vector in sum_images()"); |
30 |
|
|
for (i = 0; i < cv->nrows; i++) { |
31 |
|
|
const COLORV *scv = cv_lval(cv,i); |
32 |
|
|
char fname[1024]; |
33 |
|
|
FILE *fp; |
34 |
|
|
int dt, xr, yr; |
35 |
|
|
COLORV *psp; |
36 |
greg |
2.14 |
/* check for zero */ |
37 |
greg |
2.19 |
if ((scv[RED] == 0) & (scv[GRN] == 0) & (scv[BLU] == 0) && |
38 |
|
|
(myDT != DTfromHeader) | (i < cv->nrows-1)) |
39 |
greg |
2.14 |
continue; |
40 |
greg |
2.1 |
/* open next picture */ |
41 |
|
|
sprintf(fname, fspec, i); |
42 |
|
|
if ((fp = fopen(fname, "r")) == NULL) { |
43 |
|
|
sprintf(errmsg, "cannot open picture '%s'", fname); |
44 |
|
|
error(SYSTEM, errmsg); |
45 |
|
|
} |
46 |
|
|
SET_FILE_BINARY(fp); |
47 |
|
|
dt = getDTfromHeader(fp); |
48 |
|
|
if ((dt != DTrgbe) & (dt != DTxyze) || |
49 |
|
|
!fscnresolu(&xr, &yr, fp)) { |
50 |
|
|
sprintf(errmsg, "file '%s' not a picture", fname); |
51 |
|
|
error(USER, errmsg); |
52 |
|
|
} |
53 |
|
|
if (myDT == DTfromHeader) { /* on first one */ |
54 |
|
|
myDT = dt; |
55 |
|
|
myXR = xr; myYR = yr; |
56 |
|
|
scanline = (COLOR *)malloc(sizeof(COLOR)*myXR); |
57 |
|
|
if (scanline == NULL) |
58 |
|
|
error(SYSTEM, "out of memory in sum_images()"); |
59 |
|
|
pmat = cm_alloc(myYR, myXR); |
60 |
|
|
memset(pmat->cmem, 0, sizeof(COLOR)*myXR*myYR); |
61 |
greg |
2.2 |
/* finish header */ |
62 |
greg |
2.30 |
fputformat((char *)cm_fmt_id[myDT], fout); |
63 |
greg |
2.13 |
fputc('\n', fout); |
64 |
|
|
fflush(fout); |
65 |
greg |
2.1 |
} else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) { |
66 |
|
|
sprintf(errmsg, "picture '%s' format/size mismatch", |
67 |
|
|
fname); |
68 |
|
|
error(USER, errmsg); |
69 |
|
|
} |
70 |
|
|
psp = pmat->cmem; |
71 |
|
|
for (y = 0; y < yr; y++) { /* read it in */ |
72 |
|
|
int x; |
73 |
|
|
if (freadscan(scanline, xr, fp) < 0) { |
74 |
|
|
sprintf(errmsg, "error reading picture '%s'", |
75 |
|
|
fname); |
76 |
|
|
error(SYSTEM, errmsg); |
77 |
|
|
} |
78 |
|
|
/* sum in scanline */ |
79 |
|
|
for (x = 0; x < xr; x++, psp += 3) { |
80 |
|
|
multcolor(scanline[x], scv); |
81 |
|
|
addcolor(psp, scanline[x]); |
82 |
|
|
} |
83 |
|
|
} |
84 |
|
|
fclose(fp); /* done this picture */ |
85 |
|
|
} |
86 |
|
|
free(scanline); |
87 |
greg |
2.30 |
i = cm_write(pmat, myDT, fout); /* write picture */ |
88 |
|
|
cm_free(pmat); /* free data */ |
89 |
|
|
return(i); |
90 |
greg |
2.1 |
} |
91 |
|
|
|
92 |
greg |
2.11 |
/* check to see if a string contains a %d or %o specification */ |
93 |
|
|
static int |
94 |
|
|
hasNumberFormat(const char *s) |
95 |
greg |
2.1 |
{ |
96 |
greg |
2.24 |
if (s == NULL) |
97 |
|
|
return(0); |
98 |
|
|
|
99 |
greg |
2.18 |
while (*s) { |
100 |
|
|
while (*s != '%') |
101 |
|
|
if (!*s++) |
102 |
|
|
return(0); |
103 |
|
|
if (*++s == '%') { /* ignore "%%" */ |
104 |
|
|
++s; |
105 |
|
|
continue; |
106 |
|
|
} |
107 |
|
|
while (isdigit(*s)) /* field length */ |
108 |
|
|
++s; |
109 |
|
|
/* field we'll use? */ |
110 |
|
|
if ((*s == 'd') | (*s == 'i') | (*s == 'o') | |
111 |
|
|
(*s == 'x') | (*s == 'X')) |
112 |
|
|
return(1); |
113 |
|
|
} |
114 |
|
|
return(0); /* didn't find one */ |
115 |
greg |
2.1 |
} |
116 |
|
|
|
117 |
|
|
int |
118 |
|
|
main(int argc, char *argv[]) |
119 |
|
|
{ |
120 |
greg |
2.25 |
int skyfmt = DTascii; |
121 |
greg |
2.30 |
int outfmt = DTascii; |
122 |
greg |
2.24 |
int nsteps = 1; |
123 |
|
|
char *ofspec = NULL; |
124 |
|
|
FILE *ofp = stdout; |
125 |
|
|
CMATRIX *cmtx; /* component vector/matrix result */ |
126 |
|
|
char fnbuf[256]; |
127 |
|
|
int a, i; |
128 |
greg |
2.1 |
|
129 |
|
|
progname = argv[0]; |
130 |
greg |
2.24 |
/* get options */ |
131 |
greg |
2.25 |
for (a = 1; a < argc && argv[a][0] == '-'; a++) |
132 |
|
|
switch (argv[a][1]) { |
133 |
greg |
2.24 |
case 'n': |
134 |
|
|
nsteps = atoi(argv[++a]); |
135 |
|
|
if (nsteps <= 0) |
136 |
|
|
goto userr; |
137 |
|
|
break; |
138 |
greg |
2.25 |
case 'i': |
139 |
|
|
switch (argv[a][2]) { |
140 |
|
|
case 'f': |
141 |
|
|
skyfmt = DTfloat; |
142 |
|
|
break; |
143 |
|
|
case 'd': |
144 |
|
|
skyfmt = DTdouble; |
145 |
|
|
break; |
146 |
|
|
case 'a': |
147 |
|
|
skyfmt = DTascii; |
148 |
|
|
break; |
149 |
|
|
default: |
150 |
|
|
goto userr; |
151 |
|
|
} |
152 |
|
|
break; |
153 |
greg |
2.30 |
case 'o': |
154 |
|
|
switch (argv[a][2]) { |
155 |
|
|
case '\0': /* output specification (not format) */ |
156 |
|
|
ofspec = argv[++a]; |
157 |
|
|
break; |
158 |
|
|
case 'f': |
159 |
|
|
outfmt = DTfloat; |
160 |
|
|
break; |
161 |
|
|
case 'd': |
162 |
|
|
outfmt = DTdouble; |
163 |
|
|
break; |
164 |
|
|
case 'a': |
165 |
|
|
outfmt = DTascii; |
166 |
|
|
break; |
167 |
|
|
default: |
168 |
|
|
goto userr; |
169 |
|
|
} |
170 |
|
|
break; |
171 |
greg |
2.24 |
default: |
172 |
|
|
goto userr; |
173 |
|
|
} |
174 |
|
|
if ((argc-a < 1) | (argc-a > 4)) |
175 |
|
|
goto userr; |
176 |
greg |
2.1 |
|
177 |
greg |
2.24 |
if (argc-a > 2) { /* VTDs expression */ |
178 |
|
|
CMATRIX *smtx, *Dmat, *Tmat, *imtx; |
179 |
|
|
/* get sky vector/matrix */ |
180 |
greg |
2.25 |
smtx = cm_load(argv[a+3], 0, nsteps, skyfmt); |
181 |
greg |
2.12 |
/* load BSDF */ |
182 |
greg |
2.29 |
Tmat = cm_loadBTDF(argv[a+1]); |
183 |
greg |
2.5 |
/* load Daylight matrix */ |
184 |
greg |
2.24 |
Dmat = cm_load(argv[a+2], Tmat==NULL ? 0 : Tmat->ncols, |
185 |
|
|
smtx->nrows, DTfromHeader); |
186 |
greg |
2.1 |
/* multiply vector through */ |
187 |
greg |
2.24 |
imtx = cm_multiply(Dmat, smtx); |
188 |
|
|
cm_free(Dmat); cm_free(smtx); |
189 |
greg |
2.29 |
cmtx = cm_multiply(Tmat, imtx); |
190 |
|
|
cm_free(Tmat); |
191 |
greg |
2.24 |
cm_free(imtx); |
192 |
|
|
} else { /* sky vector/matrix only */ |
193 |
greg |
2.25 |
cmtx = cm_load(argv[a+1], 0, nsteps, skyfmt); |
194 |
greg |
2.24 |
} |
195 |
|
|
/* prepare output stream */ |
196 |
|
|
if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) { |
197 |
|
|
sprintf(fnbuf, ofspec, 1); |
198 |
|
|
ofspec = fnbuf; |
199 |
|
|
} |
200 |
|
|
if (ofspec != NULL && !hasNumberFormat(ofspec)) { |
201 |
|
|
if ((ofp = fopen(ofspec, "w")) == NULL) { |
202 |
|
|
fprintf(stderr, "%s: cannot open '%s' for output\n", |
203 |
|
|
progname, ofspec); |
204 |
|
|
return(1); |
205 |
|
|
} |
206 |
|
|
ofspec = NULL; /* only need to open once */ |
207 |
greg |
2.12 |
} |
208 |
greg |
2.24 |
if (hasNumberFormat(argv[a])) { /* generating image(s) */ |
209 |
|
|
if (ofspec == NULL) { |
210 |
|
|
SET_FILE_BINARY(ofp); |
211 |
|
|
newheader("RADIANCE", ofp); |
212 |
|
|
printargs(argc, argv, ofp); |
213 |
|
|
fputnow(ofp); |
214 |
|
|
} |
215 |
|
|
if (nsteps > 1) /* multiple output frames? */ |
216 |
|
|
for (i = 0; i < nsteps; i++) { |
217 |
|
|
CMATRIX *cvec = cm_column(cmtx, i); |
218 |
|
|
if (ofspec != NULL) { |
219 |
|
|
sprintf(fnbuf, ofspec, i+1); |
220 |
|
|
if ((ofp = fopen(fnbuf, "wb")) == NULL) { |
221 |
|
|
fprintf(stderr, |
222 |
|
|
"%s: cannot open '%s' for output\n", |
223 |
|
|
progname, fnbuf); |
224 |
|
|
return(1); |
225 |
|
|
} |
226 |
|
|
newheader("RADIANCE", ofp); |
227 |
|
|
printargs(argc, argv, ofp); |
228 |
|
|
fputnow(ofp); |
229 |
|
|
} |
230 |
|
|
fprintf(ofp, "FRAME=%d\n", i+1); |
231 |
|
|
if (!sum_images(argv[a], cvec, ofp)) |
232 |
|
|
return(1); |
233 |
|
|
if (ofspec != NULL) { |
234 |
|
|
if (fclose(ofp) == EOF) { |
235 |
|
|
fprintf(stderr, |
236 |
|
|
"%s: error writing to '%s'\n", |
237 |
|
|
progname, fnbuf); |
238 |
|
|
return(1); |
239 |
|
|
} |
240 |
|
|
ofp = stdout; |
241 |
|
|
} |
242 |
|
|
cm_free(cvec); |
243 |
|
|
} |
244 |
|
|
else if (!sum_images(argv[a], cmtx, ofp)) |
245 |
greg |
2.1 |
return(1); |
246 |
greg |
2.24 |
} else { /* generating vector/matrix */ |
247 |
|
|
CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader); |
248 |
|
|
CMATRIX *rmtx = cm_multiply(Vmat, cmtx); |
249 |
greg |
2.1 |
cm_free(Vmat); |
250 |
greg |
2.30 |
if (ofspec != NULL) { /* multiple vector files? */ |
251 |
|
|
const char *wtype = (outfmt==DTascii) ? "w" : "wb"; |
252 |
greg |
2.24 |
for (i = 0; i < nsteps; i++) { |
253 |
|
|
CMATRIX *rvec = cm_column(rmtx, i); |
254 |
|
|
sprintf(fnbuf, ofspec, i+1); |
255 |
greg |
2.30 |
if ((ofp = fopen(fnbuf, wtype)) == NULL) { |
256 |
greg |
2.24 |
fprintf(stderr, |
257 |
|
|
"%s: cannot open '%s' for output\n", |
258 |
|
|
progname, fnbuf); |
259 |
|
|
return(1); |
260 |
|
|
} |
261 |
greg |
2.30 |
cm_write(rvec, outfmt, ofp); |
262 |
greg |
2.24 |
if (fclose(ofp) == EOF) { |
263 |
|
|
fprintf(stderr, |
264 |
|
|
"%s: error writing to '%s'\n", |
265 |
|
|
progname, fnbuf); |
266 |
|
|
return(1); |
267 |
|
|
} |
268 |
|
|
ofp = stdout; |
269 |
|
|
cm_free(rvec); |
270 |
|
|
} |
271 |
greg |
2.30 |
} else { |
272 |
|
|
if (outfmt != DTascii) |
273 |
|
|
SET_FILE_BINARY(ofp); |
274 |
|
|
if (rmtx->ncols > 1) { /* header if actual matrix */ |
275 |
|
|
newheader("RADIANCE", ofp); |
276 |
|
|
printargs(argc, argv, ofp); |
277 |
|
|
fputnow(ofp); |
278 |
|
|
fputformat((char *)cm_fmt_id[outfmt], ofp); |
279 |
|
|
fputc('\n', ofp); |
280 |
|
|
} |
281 |
|
|
cm_write(rmtx, outfmt, ofp); |
282 |
|
|
} |
283 |
greg |
2.24 |
cm_free(rmtx); |
284 |
|
|
} |
285 |
|
|
if (fflush(ofp) == EOF) { /* final clean-up */ |
286 |
|
|
fprintf(stderr, "%s: write error on output\n", progname); |
287 |
|
|
return(1); |
288 |
greg |
2.1 |
} |
289 |
greg |
2.24 |
cm_free(cmtx); |
290 |
greg |
2.1 |
return(0); |
291 |
greg |
2.24 |
userr: |
292 |
greg |
2.30 |
fprintf(stderr, "Usage: %s [-n nsteps][-o ospec][-i{f|d}][-o{f|d}] DCspec [skyf]\n", |
293 |
greg |
2.24 |
progname); |
294 |
greg |
2.30 |
fprintf(stderr, " or: %s [-n nsteps][-o ospec][-i{f|d}][-o{f|d}] Vspec Tbsdf.xml Dmat.dat [skyf]\n", |
295 |
greg |
2.24 |
progname); |
296 |
|
|
return(1); |
297 |
greg |
2.1 |
} |