| 1 | 
#ifndef lint | 
| 2 | 
static const char RCSid[] = "$Id: dcglare.c,v 2.9 2025/06/06 19:11:21 greg Exp $"; | 
| 3 | 
#endif | 
| 4 | 
/* | 
| 5 | 
 * Compute time-step glare using imageless DGP calculation method. | 
| 6 | 
 * | 
| 7 | 
 *      N. Jones | 
| 8 | 
 */ | 
| 9 | 
 | 
| 10 | 
/* | 
| 11 | 
 * Copyright (c) 2017-2019 Nathaniel Jones | 
| 12 | 
 * | 
| 13 | 
 * Permission is hereby granted, free of charge, to any person obtaining a copy | 
| 14 | 
 * of this software and associated documentation files (the "Software"), to deal | 
| 15 | 
 * in the Software without restriction, including without limitation the rights | 
| 16 | 
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | 
| 17 | 
 * copies of the Software, and to permit persons to whom the Software is | 
| 18 | 
 * furnished to do so, subject to the following conditions: | 
| 19 | 
 * | 
| 20 | 
 * The above copyright notice and this permission notice shall be included in all | 
| 21 | 
 * copies or substantial portions of the Software. | 
| 22 | 
 * | 
| 23 | 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | 
| 24 | 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | 
| 25 | 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | 
| 26 | 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | 
| 27 | 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | 
| 28 | 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | 
| 29 | 
 * SOFTWARE. | 
| 30 | 
 */ | 
| 31 | 
 | 
| 32 | 
#include <ctype.h> | 
| 33 | 
#include "platform.h" | 
| 34 | 
#include "standard.h" | 
| 35 | 
#include "cmatrix.h" | 
| 36 | 
#include "resolu.h" | 
| 37 | 
#include "cmglare.h" | 
| 38 | 
 | 
| 39 | 
/* Sum together a set of images and write result to fout */ | 
| 40 | 
static int | 
| 41 | 
sum_images(const char *fspec, const CMATRIX *cv, FILE *fout) | 
| 42 | 
{ | 
| 43 | 
        int     myDT = DTfromHeader; | 
| 44 | 
        COLR    *scanline = NULL; | 
| 45 | 
        CMATRIX *pmat = NULL; | 
| 46 | 
        int     myXR=0, myYR=0; | 
| 47 | 
        int     i, y; | 
| 48 | 
 | 
| 49 | 
        if (cv->ncols != 1) | 
| 50 | 
                error(INTERNAL, "expected vector in sum_images()"); | 
| 51 | 
        for (i = 0; i < cv->nrows; i++) { | 
| 52 | 
                const COLORV    *scv = cv_lval(cv,i); | 
| 53 | 
                int             flat_file = 0; | 
| 54 | 
                char            fname[1024]; | 
| 55 | 
                FILE            *fp; | 
| 56 | 
                long            data_start; | 
| 57 | 
                int             dt, xr, yr; | 
| 58 | 
                COLORV          *psp; | 
| 59 | 
                char            *err; | 
| 60 | 
                                                        /* check for zero */ | 
| 61 | 
                if ((scv[RED] == 0) & (scv[GRN] == 0) & (scv[BLU] == 0) && | 
| 62 | 
                                (myDT != DTfromHeader) | (i < cv->nrows-1)) | 
| 63 | 
                        continue; | 
| 64 | 
                                                        /* open next picture */ | 
| 65 | 
                sprintf(fname, fspec, i); | 
| 66 | 
                if ((fp = fopen(fname, "rb")) == NULL) { | 
| 67 | 
                        sprintf(errmsg, "cannot open picture '%s'", fname); | 
| 68 | 
                        error(SYSTEM, errmsg); | 
| 69 | 
                } | 
| 70 | 
                dt = DTfromHeader; | 
| 71 | 
                if ((err = cm_getheader(&dt, NULL, NULL, NULL, NULL, fp)) != NULL) | 
| 72 | 
                        error(USER, err); | 
| 73 | 
                if ((dt != DTrgbe) & (dt != DTxyze) || | 
| 74 | 
                                !fscnresolu(&xr, &yr, fp)) { | 
| 75 | 
                        sprintf(errmsg, "file '%s' not a picture", fname); | 
| 76 | 
                        error(USER, errmsg); | 
| 77 | 
                } | 
| 78 | 
                if (myDT == DTfromHeader) {             /* on first one */ | 
| 79 | 
                        myDT = dt; | 
| 80 | 
                        myXR = xr; myYR = yr; | 
| 81 | 
                        scanline = (COLR *)malloc(sizeof(COLR)*myXR); | 
| 82 | 
                        if (scanline == NULL) | 
| 83 | 
                                error(SYSTEM, "out of memory in sum_images()"); | 
| 84 | 
                        pmat = cm_alloc(myYR, myXR); | 
| 85 | 
                        memset(pmat->cmem, 0, sizeof(COLOR)*myXR*myYR); | 
| 86 | 
                                                        /* finish header */ | 
| 87 | 
                        fputformat(cm_fmt_id[myDT], fout); | 
| 88 | 
                        fputc('\n', fout); | 
| 89 | 
                        fflush(fout); | 
| 90 | 
                } else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) { | 
| 91 | 
                        sprintf(errmsg, "picture '%s' format/size mismatch", | 
| 92 | 
                                        fname); | 
| 93 | 
                        error(USER, errmsg); | 
| 94 | 
                } | 
| 95 | 
                                                        /* flat file check */ | 
| 96 | 
                if ((data_start = ftell(fp)) > 0 && fseek(fp, 0L, SEEK_END) == 0) { | 
| 97 | 
                        flat_file = (ftell(fp) >= data_start + sizeof(COLR)*xr*yr); | 
| 98 | 
                        if (fseek(fp, data_start, SEEK_SET) < 0) { | 
| 99 | 
                                sprintf(errmsg, "cannot seek on picture '%s'", fname); | 
| 100 | 
                                error(SYSTEM, errmsg); | 
| 101 | 
                        } | 
| 102 | 
                } | 
| 103 | 
                psp = pmat->cmem; | 
| 104 | 
                for (y = 0; y < yr; y++) {              /* read it in */ | 
| 105 | 
                        COLOR   col; | 
| 106 | 
                        int     x; | 
| 107 | 
                        if (flat_file ? getbinary(scanline, sizeof(COLR), xr, fp) != xr : | 
| 108 | 
                                        freadcolrs(scanline, xr, fp) < 0) { | 
| 109 | 
                                sprintf(errmsg, "error reading picture '%s'", | 
| 110 | 
                                                fname); | 
| 111 | 
                                error(SYSTEM, errmsg); | 
| 112 | 
                        } | 
| 113 | 
                                                        /* sum in scanline */ | 
| 114 | 
                        for (x = 0; x < xr; x++, psp += 3) { | 
| 115 | 
                                if (!scanline[x][EXP]) | 
| 116 | 
                                        continue;       /* skip zeroes */ | 
| 117 | 
                                colr_color(col, scanline[x]); | 
| 118 | 
                                multcolor(col, scv); | 
| 119 | 
                                addcolor(psp, col); | 
| 120 | 
                        } | 
| 121 | 
                } | 
| 122 | 
                fclose(fp);                             /* done this picture */ | 
| 123 | 
        } | 
| 124 | 
        free(scanline); | 
| 125 | 
        i = cm_write(pmat, myDT, fout);                 /* write picture */ | 
| 126 | 
        cm_free(pmat);                                  /* free data */ | 
| 127 | 
        return(i); | 
| 128 | 
} | 
| 129 | 
 | 
| 130 | 
/* check to see if a string contains a %d or %o specification */ | 
| 131 | 
static int | 
| 132 | 
hasNumberFormat(const char *s) | 
| 133 | 
{ | 
| 134 | 
        if (s == NULL) | 
| 135 | 
                return(0); | 
| 136 | 
 | 
| 137 | 
        while (*s) { | 
| 138 | 
                while (*s != '%') | 
| 139 | 
                        if (!*s++) | 
| 140 | 
                                return(0); | 
| 141 | 
                if (*++s == '%') {              /* ignore "%%" */ | 
| 142 | 
                        ++s; | 
| 143 | 
                        continue; | 
| 144 | 
                } | 
| 145 | 
                while (isdigit(*s))             /* field length */ | 
| 146 | 
                        ++s; | 
| 147 | 
                                                /* field we'll use? */ | 
| 148 | 
                if ((*s == 'd') | (*s == 'i') | (*s == 'o') | | 
| 149 | 
                                        (*s == 'x') | (*s == 'X')) | 
| 150 | 
                        return(1); | 
| 151 | 
        } | 
| 152 | 
        return(0);                              /* didn't find one */ | 
| 153 | 
} | 
| 154 | 
 | 
| 155 | 
int | 
| 156 | 
main(int argc, char *argv[]) | 
| 157 | 
{ | 
| 158 | 
        int             skyfmt = DTfromHeader; | 
| 159 | 
        int             outfmt = DTascii; | 
| 160 | 
        int             headout = 1; | 
| 161 | 
        int             nsteps = 0; | 
| 162 | 
        char            *ofspec = NULL; | 
| 163 | 
        FILE            *ofp = stdout; | 
| 164 | 
        CMATRIX         *cmtx;          /* component vector/matrix result */ | 
| 165 | 
        char            fnbuf[256]; | 
| 166 | 
        int             a, i; | 
| 167 | 
#ifdef DC_GLARE | 
| 168 | 
        char    *direct_path = NULL; | 
| 169 | 
        char    *schedule_path = NULL; | 
| 170 | 
        int             *occupancy = NULL; | 
| 171 | 
        int             start_hour = 0; | 
| 172 | 
        int             end_hour = 24; | 
| 173 | 
        double  dgp_limit = -1; | 
| 174 | 
        double  dgp_threshold = 2000; | 
| 175 | 
        char    *view_path = NULL; | 
| 176 | 
        FILE    *fp; | 
| 177 | 
        float   *dgp_values = NULL; | 
| 178 | 
        FVECT   vdir, vup; | 
| 179 | 
        FVECT   *views = NULL; | 
| 180 | 
        int             viewfmt = DTascii; | 
| 181 | 
 | 
| 182 | 
        vdir[0] = vdir[1] = vdir[2] = vup[0] = vup[1] = 0; | 
| 183 | 
        vup[2] = 1; | 
| 184 | 
 | 
| 185 | 
        clock_t timer = clock(); | 
| 186 | 
#endif /* DC_GLARE */ | 
| 187 | 
 | 
| 188 | 
        fixargv0(argv[0]); | 
| 189 | 
                                        /* get options */ | 
| 190 | 
        for (a = 1; a < argc && argv[a][0] == '-'; a++) | 
| 191 | 
                switch (argv[a][1]) { | 
| 192 | 
                case 'n': | 
| 193 | 
                        nsteps = atoi(argv[++a]); | 
| 194 | 
                        if (nsteps < 0) | 
| 195 | 
                                goto userr; | 
| 196 | 
                        skyfmt = nsteps ? DTascii : DTfromHeader; | 
| 197 | 
                        break; | 
| 198 | 
                case 'h': | 
| 199 | 
                        headout = !headout; | 
| 200 | 
                        break; | 
| 201 | 
                case 'i': | 
| 202 | 
                        switch (argv[a][2]) { | 
| 203 | 
                        case 'f': | 
| 204 | 
                                skyfmt = DTfloat; | 
| 205 | 
                                break; | 
| 206 | 
                        case 'd': | 
| 207 | 
                                skyfmt = DTdouble; | 
| 208 | 
                                break; | 
| 209 | 
                        case 'a': | 
| 210 | 
                                skyfmt = DTascii; | 
| 211 | 
                                break; | 
| 212 | 
                        default: | 
| 213 | 
                                goto userr; | 
| 214 | 
                        } | 
| 215 | 
                        break; | 
| 216 | 
                case 'o': | 
| 217 | 
                        switch (argv[a][2]) { | 
| 218 | 
#ifndef DC_GLARE | 
| 219 | 
                        case '\0':      /* output specification (not format) */ | 
| 220 | 
                                ofspec = argv[++a]; | 
| 221 | 
                                break; | 
| 222 | 
#endif /* DC_GLARE */ | 
| 223 | 
                        case 'f': | 
| 224 | 
                                outfmt = DTfloat; | 
| 225 | 
                                break; | 
| 226 | 
                        case 'd': | 
| 227 | 
                                outfmt = DTdouble; | 
| 228 | 
                                break; | 
| 229 | 
                        case 'a': | 
| 230 | 
                                outfmt = DTascii; | 
| 231 | 
                                break; | 
| 232 | 
                        default: | 
| 233 | 
                                goto userr; | 
| 234 | 
                        } | 
| 235 | 
                        break; | 
| 236 | 
#ifdef DC_GLARE | 
| 237 | 
                case 's': | 
| 238 | 
                        switch (argv[a][2]) { | 
| 239 | 
                        case 'f':       /* occupancy schedule file */ | 
| 240 | 
                                schedule_path = argv[++a]; | 
| 241 | 
                                break; | 
| 242 | 
                        case 's':       /* occupancy start hour */ | 
| 243 | 
                                start_hour = atoi(argv[++a]); | 
| 244 | 
                                break; | 
| 245 | 
                        case 'e':       /* occupancy end hour */ | 
| 246 | 
                                end_hour = atoi(argv[++a]); | 
| 247 | 
                                break; | 
| 248 | 
                        default: | 
| 249 | 
                                goto userr; | 
| 250 | 
                        } | 
| 251 | 
                        break; | 
| 252 | 
                case 'l':       /* perceptible glare threshold */ | 
| 253 | 
                        dgp_limit = atof(argv[++a]); | 
| 254 | 
                        break; | 
| 255 | 
                case 'b':       /* luminance threshold */ | 
| 256 | 
                        dgp_threshold = atof(argv[++a]); | 
| 257 | 
                        break; | 
| 258 | 
                case 'v': | 
| 259 | 
                        switch (argv[a][2]) { | 
| 260 | 
                        case 'd':       /* forward */ | 
| 261 | 
                                //check(3, "fff"); | 
| 262 | 
                                vdir[0] = atof(argv[++a]); | 
| 263 | 
                                vdir[1] = atof(argv[++a]); | 
| 264 | 
                                vdir[2] = atof(argv[++a]); | 
| 265 | 
                                if (normalize(vdir) == 0.0) goto userr; | 
| 266 | 
                                break; | 
| 267 | 
                        case 'u':       /* up */ | 
| 268 | 
                                //check(3, "fff"); | 
| 269 | 
                                vup[0] = atof(argv[++a]); | 
| 270 | 
                                vup[1] = atof(argv[++a]); | 
| 271 | 
                                vup[2] = atof(argv[++a]); | 
| 272 | 
                                if (normalize(vup) == 0.0) goto userr; | 
| 273 | 
                                break; | 
| 274 | 
                        case 'f':       /* view directions file */ | 
| 275 | 
                                //check(2, "s"); | 
| 276 | 
                                view_path = argv[++a]; | 
| 277 | 
                                break; | 
| 278 | 
                        case 'i': | 
| 279 | 
                                switch (argv[a][3]) { | 
| 280 | 
                                case 'f': | 
| 281 | 
                                        viewfmt = DTfloat; | 
| 282 | 
                                        break; | 
| 283 | 
                                case 'd': | 
| 284 | 
                                        viewfmt = DTdouble; | 
| 285 | 
                                        break; | 
| 286 | 
                                case 'a': | 
| 287 | 
                                        viewfmt = DTascii; | 
| 288 | 
                                        break; | 
| 289 | 
                                default: | 
| 290 | 
                                        goto userr; | 
| 291 | 
                                } | 
| 292 | 
                        default: | 
| 293 | 
                                goto userr; | 
| 294 | 
                        } | 
| 295 | 
                        break; | 
| 296 | 
#endif /* DC_GLARE */ | 
| 297 | 
                default: | 
| 298 | 
                        goto userr; | 
| 299 | 
                } | 
| 300 | 
#ifdef DC_GLARE | 
| 301 | 
        if ((argc-a < 2) | (argc-a > 5)) | 
| 302 | 
                goto userr; | 
| 303 | 
        /* single bounce daylight coefficients file */ | 
| 304 | 
        direct_path = argv[a++]; | 
| 305 | 
#else | 
| 306 | 
        if ((argc-a < 1) | (argc-a > 4)) | 
| 307 | 
                goto userr; | 
| 308 | 
#endif /* DC_GLARE */ | 
| 309 | 
 | 
| 310 | 
        if (argc-a > 2) {                       /* VTDs expression */ | 
| 311 | 
                CMATRIX         *smtx, *Dmat, *Tmat, *imtx; | 
| 312 | 
                const char      *ccp; | 
| 313 | 
                                                /* get sky vector/matrix */ | 
| 314 | 
                smtx = cm_load(argv[a+3], 0, nsteps, skyfmt); | 
| 315 | 
                nsteps = smtx->ncols; | 
| 316 | 
                                                /* load BSDF */ | 
| 317 | 
                if (argv[a+1][0] != '!' && | 
| 318 | 
                                (ccp = strrchr(argv[a+1], '.')) != NULL && | 
| 319 | 
                                !strcasecmp(ccp+1, "XML")) | 
| 320 | 
                        Tmat = cm_loadBTDF(argv[a+1]); | 
| 321 | 
                else | 
| 322 | 
                        Tmat = cm_load(argv[a+1], 0, 0, DTfromHeader); | 
| 323 | 
                                                /* load Daylight matrix */ | 
| 324 | 
                Dmat = cm_load(argv[a+2], Tmat->ncols, | 
| 325 | 
                                        smtx->nrows, DTfromHeader); | 
| 326 | 
                                                /* multiply vector through */ | 
| 327 | 
                imtx = cm_multiply(Dmat, smtx); | 
| 328 | 
                cm_free(Dmat); cm_free(smtx); | 
| 329 | 
                cmtx = cm_multiply(Tmat, imtx); | 
| 330 | 
                cm_free(Tmat);  | 
| 331 | 
                cm_free(imtx); | 
| 332 | 
        } else {                                /* sky vector/matrix only */ | 
| 333 | 
                //TIMER(timer, "read args"); | 
| 334 | 
                cmtx = cm_load(argv[a+1], 0, nsteps, skyfmt); | 
| 335 | 
                nsteps = cmtx->ncols; | 
| 336 | 
                //TIMER(timer, "load sky matrix"); | 
| 337 | 
        } | 
| 338 | 
                                                /* prepare output stream */ | 
| 339 | 
        if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) { | 
| 340 | 
                sprintf(fnbuf, ofspec, 1); | 
| 341 | 
                ofspec = fnbuf; | 
| 342 | 
        } | 
| 343 | 
        if (ofspec != NULL && !hasNumberFormat(ofspec)) { | 
| 344 | 
                if ((ofp = fopen(ofspec, "w")) == NULL) { | 
| 345 | 
                        fprintf(stderr, "%s: cannot open '%s' for output\n", | 
| 346 | 
                                        progname, ofspec); | 
| 347 | 
                        return(1); | 
| 348 | 
                } | 
| 349 | 
                ofspec = NULL;                  /* only need to open once */ | 
| 350 | 
        } | 
| 351 | 
        if (hasNumberFormat(argv[a])) {         /* generating image(s) */ | 
| 352 | 
                if (ofspec == NULL) { | 
| 353 | 
                        SET_FILE_BINARY(ofp); | 
| 354 | 
                        newheader("RADIANCE", ofp); | 
| 355 | 
                        printargs(argc, argv, ofp); | 
| 356 | 
                        fputnow(ofp); | 
| 357 | 
                } | 
| 358 | 
                if (nsteps > 1)                 /* multiple output frames? */ | 
| 359 | 
                        for (i = 0; i < nsteps; i++) { | 
| 360 | 
                                CMATRIX *cvec = cm_column(cmtx, i); | 
| 361 | 
                                if (ofspec != NULL) { | 
| 362 | 
                                        sprintf(fnbuf, ofspec, i); | 
| 363 | 
                                        if ((ofp = fopen(fnbuf, "wb")) == NULL) { | 
| 364 | 
                                                fprintf(stderr, | 
| 365 | 
                                                        "%s: cannot open '%s' for output\n", | 
| 366 | 
                                                        progname, fnbuf); | 
| 367 | 
                                                return(1); | 
| 368 | 
                                        } | 
| 369 | 
                                        newheader("RADIANCE", ofp); | 
| 370 | 
                                        printargs(argc, argv, ofp); | 
| 371 | 
                                        fputnow(ofp); | 
| 372 | 
                                } | 
| 373 | 
                                fprintf(ofp, "FRAME=%d\n", i); | 
| 374 | 
                                if (!sum_images(argv[a], cvec, ofp)) | 
| 375 | 
                                        return(1); | 
| 376 | 
                                if (ofspec != NULL) { | 
| 377 | 
                                        if (fclose(ofp) == EOF) { | 
| 378 | 
                                                fprintf(stderr, | 
| 379 | 
                                                        "%s: error writing to '%s'\n", | 
| 380 | 
                                                        progname, fnbuf); | 
| 381 | 
                                                return(1); | 
| 382 | 
                                        } | 
| 383 | 
                                        ofp = stdout; | 
| 384 | 
                                } | 
| 385 | 
                                cm_free(cvec); | 
| 386 | 
                        } | 
| 387 | 
                else if (!sum_images(argv[a], cmtx, ofp)) | 
| 388 | 
                        return(1); | 
| 389 | 
        } else {                                /* generating vector/matrix */ | 
| 390 | 
                CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader); | 
| 391 | 
                //TIMER(timer, "load view matrix"); | 
| 392 | 
                CMATRIX *rmtx = cm_multiply(Vmat, cmtx); | 
| 393 | 
                //TIMER(timer, "multiply"); | 
| 394 | 
                cm_free(Vmat); | 
| 395 | 
#ifdef DC_GLARE | 
| 396 | 
                if (direct_path) { /* Do glare autonomy calculation */ | 
| 397 | 
                        /* Load occupancy schedule */ | 
| 398 | 
                        occupancy = (int*)malloc(nsteps * sizeof(int)); | 
| 399 | 
                        if (!occupancy) { | 
| 400 | 
                                fprintf(stderr, | 
| 401 | 
                                        "%s: out of memory for schedule\n", | 
| 402 | 
                                        progname); | 
| 403 | 
                                return(1); | 
| 404 | 
                        } | 
| 405 | 
                        if (schedule_path) { | 
| 406 | 
                                if ((fp = fopen(schedule_path, "r")) == NULL) { | 
| 407 | 
                                        fprintf(stderr, | 
| 408 | 
                                                "%s: cannot open input file \"%s\"\n", | 
| 409 | 
                                                progname, schedule_path); | 
| 410 | 
                                        return(1); | 
| 411 | 
                                } | 
| 412 | 
                                if (cm_load_schedule(nsteps, occupancy, fp) < 0) return(1); | 
| 413 | 
                        } | 
| 414 | 
                        else { | 
| 415 | 
                                for (i = 0; i < nsteps; i++) { | 
| 416 | 
                                        /* Assume hourly spacing */ | 
| 417 | 
                                        int hour = i % 24; | 
| 418 | 
                                        occupancy[i] = ((hour >= start_hour) & (hour < end_hour)); | 
| 419 | 
                                } | 
| 420 | 
                        } | 
| 421 | 
                        //TIMER(timer, "load occupancy schedule"); | 
| 422 | 
 | 
| 423 | 
                        /* Load view directions */ | 
| 424 | 
                        if (view_path == NULL) { | 
| 425 | 
                                if (vdir[0] == 0.0f && vdir[1] == 0.0f && vdir[2] == 0.0f) { | 
| 426 | 
                                        fprintf(stderr, | 
| 427 | 
                                                "%s: missing view direction\n", | 
| 428 | 
                                                progname); | 
| 429 | 
                                        return(1); | 
| 430 | 
                                } | 
| 431 | 
                        } | 
| 432 | 
                        else { | 
| 433 | 
                                if ((fp = fopen(view_path, "r")) == NULL) { | 
| 434 | 
                                        fprintf(stderr, | 
| 435 | 
                                                "%s: cannot open input file \"%s\"\n", | 
| 436 | 
                                                progname, view_path); | 
| 437 | 
                                        return(1); | 
| 438 | 
                                } | 
| 439 | 
                                if (viewfmt != DTascii) | 
| 440 | 
                                        SET_FILE_BINARY(fp); | 
| 441 | 
                                views = cm_load_views(rmtx->nrows, viewfmt, fp); | 
| 442 | 
                                if (!views) return(1); | 
| 443 | 
                                //TIMER(timer, "load views"); | 
| 444 | 
                        } | 
| 445 | 
 | 
| 446 | 
                        /* Calculate glare values */ | 
| 447 | 
                        Vmat = cm_load(direct_path, 0, cmtx->nrows, DTfromHeader); | 
| 448 | 
                        //TIMER(timer, "load direct matrix"); | 
| 449 | 
                        dgp_values = cm_glare(Vmat, rmtx, cmtx, occupancy, dgp_limit, dgp_threshold, views, vdir, vup); | 
| 450 | 
                        //TIMER(timer, "calculate dgp"); | 
| 451 | 
                        free(views); | 
| 452 | 
                        cm_free(Vmat); | 
| 453 | 
 | 
| 454 | 
                        /* Check successful calculation */ | 
| 455 | 
                        if (!dgp_values) return(1); | 
| 456 | 
                } | 
| 457 | 
#endif /* DC_GLARE */ | 
| 458 | 
                if (ofspec != NULL) {           /* multiple vector files? */ | 
| 459 | 
                        const char      *wtype = (outfmt==DTascii) ? "w" : "wb"; | 
| 460 | 
                        for (i = 0; i < nsteps; i++) { | 
| 461 | 
                                CMATRIX *rvec = cm_column(rmtx, i); | 
| 462 | 
                                sprintf(fnbuf, ofspec, i); | 
| 463 | 
                                if ((ofp = fopen(fnbuf, wtype)) == NULL) { | 
| 464 | 
                                        fprintf(stderr, | 
| 465 | 
                                        "%s: cannot open '%s' for output\n", | 
| 466 | 
                                                        progname, fnbuf); | 
| 467 | 
                                        return(1); | 
| 468 | 
                                } | 
| 469 | 
#ifdef getc_unlocked | 
| 470 | 
                                flockfile(ofp); | 
| 471 | 
#endif | 
| 472 | 
                                if (headout) {  /* header output */ | 
| 473 | 
                                        newheader("RADIANCE", ofp); | 
| 474 | 
                                        printargs(argc, argv, ofp); | 
| 475 | 
                                        fputnow(ofp); | 
| 476 | 
                                        fprintf(ofp, "FRAME=%d\n", i); | 
| 477 | 
                                        fprintf(ofp, "NROWS=%d\n", rvec->nrows); | 
| 478 | 
                                        fputs("NCOLS=1\nNCOMP=3\n", ofp); | 
| 479 | 
                                        if ((outfmt == DTfloat) | (outfmt == DTdouble)) | 
| 480 | 
                                                fputendian(ofp); | 
| 481 | 
                                        fputformat(cm_fmt_id[outfmt], ofp); | 
| 482 | 
                                        fputc('\n', ofp); | 
| 483 | 
                                } | 
| 484 | 
                                cm_write(rvec, outfmt, ofp); | 
| 485 | 
                                if (fclose(ofp) == EOF) { | 
| 486 | 
                                        fprintf(stderr, | 
| 487 | 
                                                "%s: error writing to '%s'\n", | 
| 488 | 
                                                        progname, fnbuf); | 
| 489 | 
                                        return(1); | 
| 490 | 
                                } | 
| 491 | 
                                ofp = stdout; | 
| 492 | 
                                cm_free(rvec); | 
| 493 | 
                        } | 
| 494 | 
                } else { | 
| 495 | 
#ifdef getc_unlocked | 
| 496 | 
                        flockfile(ofp); | 
| 497 | 
#endif | 
| 498 | 
                        if (outfmt != DTascii) | 
| 499 | 
                                SET_FILE_BINARY(ofp); | 
| 500 | 
                        if (headout) {          /* header output */ | 
| 501 | 
                                newheader("RADIANCE", ofp); | 
| 502 | 
                                printargs(argc, argv, ofp); | 
| 503 | 
                                fputnow(ofp); | 
| 504 | 
                                fprintf(ofp, "NROWS=%d\n", rmtx->nrows); | 
| 505 | 
#ifdef DC_GLARE | 
| 506 | 
                                fprintf(ofp, "NCOLS=%d\n", (!dgp_values || dgp_limit < 0) ? rmtx->ncols : 1); | 
| 507 | 
                                fprintf(ofp, "NCOMP=%d\n", dgp_values ? 1 : 3); | 
| 508 | 
#else | 
| 509 | 
                                fprintf(ofp, "NCOLS=%d\n", rmtx->ncols); | 
| 510 | 
                                fputs("NCOMP=3\n", ofp); | 
| 511 | 
#endif /* DC_GLARE */ | 
| 512 | 
                                if ((outfmt == DTfloat) | (outfmt == DTdouble)) | 
| 513 | 
                                        fputendian(ofp); | 
| 514 | 
                                fputformat(cm_fmt_id[outfmt], ofp); | 
| 515 | 
                                fputc('\n', ofp); | 
| 516 | 
                        } | 
| 517 | 
#ifdef DC_GLARE | 
| 518 | 
                        if (dgp_values) { /* Write glare autonomy */ | 
| 519 | 
                                cm_write_glare(dgp_values, rmtx->nrows, dgp_limit < 0 ? rmtx->ncols : 1, outfmt, ofp); | 
| 520 | 
                                free(dgp_values); | 
| 521 | 
                                //TIMER(timer, "write"); | 
| 522 | 
                        }  | 
| 523 | 
                        else | 
| 524 | 
#endif /* DC_GLARE */ | 
| 525 | 
                        cm_write(rmtx, outfmt, ofp); | 
| 526 | 
                } | 
| 527 | 
                cm_free(rmtx); | 
| 528 | 
        } | 
| 529 | 
        if (fflush(ofp) == EOF) {               /* final clean-up */ | 
| 530 | 
                fprintf(stderr, "%s: write error on output\n", progname); | 
| 531 | 
                return(1); | 
| 532 | 
        } | 
| 533 | 
        cm_free(cmtx); | 
| 534 | 
        return(0); | 
| 535 | 
userr: | 
| 536 | 
#ifdef DC_GLARE | 
| 537 | 
        fprintf(stderr, "Usage: %s [-n nsteps][-i{f|d|h}][-o{f|d}][-l limit][-b threshold][{-sf occupancy|-ss start -se end}]{-vf views [-vi{f|d}]|-vd x y z}[-vu x y z] DCdirect DCtotal [skyf]\n", | 
| 538 | 
                progname); | 
| 539 | 
        fprintf(stderr, "   or: %s [-n nsteps][-i{f|d|h}][-o{f|d}][-l limit][-b threshold][{-sf occupancy|-ss start -se end}]{-vf views [-vi{f|d}]|-vd x y z}[-vu x y z] DCdirect Vspec Tbsdf Dmat.dat [skyf]\n", | 
| 540 | 
                progname); | 
| 541 | 
#else | 
| 542 | 
        fprintf(stderr, "Usage: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d}] DCspec [skyf]\n", | 
| 543 | 
                                progname); | 
| 544 | 
        fprintf(stderr, "   or: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d}] Vspec Tbsdf Dmat.dat [skyf]\n", | 
| 545 | 
                                progname); | 
| 546 | 
#endif /* DC_GLARE */ | 
| 547 | 
        return(1); | 
| 548 | 
} |