| 8 |  | */ | 
| 9 |  |  | 
| 10 |  | #include <ctype.h> | 
| 11 | + | #include "platform.h" | 
| 12 |  | #include "standard.h" | 
| 13 | + | #include "cmatrix.h" | 
| 14 |  | #include "platform.h" | 
| 13 | – | #include "paths.h" | 
| 14 | – | #include "color.h" | 
| 15 |  | #include "resolu.h" | 
| 16 | – | #include "bsdf.h" | 
| 17 | – | #include "bsdf_m.h" | 
| 16 |  |  | 
| 17 |  | char    *progname;                      /* global argv[0] */ | 
| 18 |  |  | 
| 19 | < | /* Data types for file loading */ | 
| 22 | < | enum {DTfromHeader, DTascii, DTfloat, DTdouble, DTrgbe, DTxyze}; | 
| 23 | < |  | 
| 24 | < | /* A color coefficient matrix -- vectors have ncols==1 */ | 
| 25 | < | typedef struct { | 
| 26 | < | int     nrows, ncols; | 
| 27 | < | COLORV  cmem[3];                /* extends struct */ | 
| 28 | < | } CMATRIX; | 
| 29 | < |  | 
| 30 | < | #define COLSPEC (sizeof(COLORV)==sizeof(float) ? "%f %f %f" : "%lf %lf %lf") | 
| 31 | < |  | 
| 32 | < | #define cm_lval(cm,r,c) ((cm)->cmem + 3*((r)*(cm)->ncols + (c))) | 
| 33 | < |  | 
| 34 | < | #define cv_lval(cm,i)   ((cm)->cmem + 3*(i)) | 
| 35 | < |  | 
| 36 | < | /* Allocate a color coefficient matrix */ | 
| 37 | < | static CMATRIX * | 
| 38 | < | cm_alloc(int nrows, int ncols) | 
| 39 | < | { | 
| 40 | < | CMATRIX *cm; | 
| 41 | < |  | 
| 42 | < | if ((nrows <= 0) | (ncols <= 0)) | 
| 43 | < | error(USER, "attempt to create empty matrix"); | 
| 44 | < | cm = (CMATRIX *)malloc(sizeof(CMATRIX) + | 
| 45 | < | 3*sizeof(COLORV)*(nrows*ncols - 1)); | 
| 46 | < | if (cm == NULL) | 
| 47 | < | error(SYSTEM, "out of memory in cm_alloc()"); | 
| 48 | < | cm->nrows = nrows; | 
| 49 | < | cm->ncols = ncols; | 
| 50 | < | return(cm); | 
| 51 | < | } | 
| 52 | < |  | 
| 53 | < | #define cm_free(cm)     free(cm) | 
| 54 | < |  | 
| 55 | < | /* Resize color coefficient matrix */ | 
| 56 | < | static CMATRIX * | 
| 57 | < | cm_resize(CMATRIX *cm, int nrows) | 
| 58 | < | { | 
| 59 | < | if (nrows == cm->nrows) | 
| 60 | < | return(cm); | 
| 61 | < | if (nrows <= 0) { | 
| 62 | < | cm_free(cm); | 
| 63 | < | return(NULL); | 
| 64 | < | } | 
| 65 | < | cm = (CMATRIX *)realloc(cm, sizeof(CMATRIX) + | 
| 66 | < | 3*sizeof(COLORV)*(nrows*cm->ncols - 1)); | 
| 67 | < | if (cm == NULL) | 
| 68 | < | error(SYSTEM, "out of memory in cm_resize()"); | 
| 69 | < | cm->nrows = nrows; | 
| 70 | < | return(cm); | 
| 71 | < | } | 
| 72 | < |  | 
| 73 | < | /* Load header to obtain data type */ | 
| 19 | > | /* Sum together a set of images and write result to fout */ | 
| 20 |  | static int | 
| 75 | – | getDT(char *s, void *p) | 
| 76 | – | { | 
| 77 | – | char    fmt[32]; | 
| 78 | – |  | 
| 79 | – | if (formatval(fmt, s)) { | 
| 80 | – | if (!strcmp(fmt, "ascii")) | 
| 81 | – | *((int *)p) = DTascii; | 
| 82 | – | else if (!strcmp(fmt, "float")) | 
| 83 | – | *((int *)p) = DTfloat; | 
| 84 | – | else if (!strcmp(fmt, "double")) | 
| 85 | – | *((int *)p) = DTdouble; | 
| 86 | – | else if (!strcmp(fmt, COLRFMT)) | 
| 87 | – | *((int *)p) = DTrgbe; | 
| 88 | – | else if (!strcmp(fmt, CIEFMT)) | 
| 89 | – | *((int *)p) = DTxyze; | 
| 90 | – | } | 
| 91 | – | return(0); | 
| 92 | – | } | 
| 93 | – |  | 
| 94 | – | static int | 
| 95 | – | getDTfromHeader(FILE *fp) | 
| 96 | – | { | 
| 97 | – | int     dt = DTfromHeader; | 
| 98 | – |  | 
| 99 | – | if (getheader(fp, getDT, &dt) < 0) | 
| 100 | – | error(SYSTEM, "header read error"); | 
| 101 | – | if (dt == DTfromHeader) | 
| 102 | – | error(USER, "missing data format in header"); | 
| 103 | – | return(dt); | 
| 104 | – | } | 
| 105 | – |  | 
| 106 | – | /* Allocate and load a matrix from the given file (or stdin if NULL) */ | 
| 107 | – | static CMATRIX * | 
| 108 | – | cm_load(const char *fname, int nrows, int ncols, int dtype) | 
| 109 | – | { | 
| 110 | – | CMATRIX *cm; | 
| 111 | – | FILE    *fp = stdin; | 
| 112 | – |  | 
| 113 | – | if (ncols <= 0) | 
| 114 | – | error(USER, "Non-positive number of columns"); | 
| 115 | – | if (fname == NULL) | 
| 116 | – | fname = "<stdin>"; | 
| 117 | – | else if ((fp = fopen(fname, "r")) == NULL) { | 
| 118 | – | sprintf(errmsg, "cannot open file '%s'", fname); | 
| 119 | – | error(SYSTEM, errmsg); | 
| 120 | – | } | 
| 121 | – | if (dtype != DTascii) | 
| 122 | – | SET_FILE_BINARY(fp); | 
| 123 | – | if (dtype == DTfromHeader) | 
| 124 | – | dtype = getDTfromHeader(fp); | 
| 125 | – | switch (dtype) { | 
| 126 | – | case DTascii: | 
| 127 | – | case DTfloat: | 
| 128 | – | case DTdouble: | 
| 129 | – | break; | 
| 130 | – | default: | 
| 131 | – | error(USER, "unexpected data type in cm_load()"); | 
| 132 | – | } | 
| 133 | – | if (nrows <= 0) {                       /* don't know length? */ | 
| 134 | – | int     guessrows = 147;        /* usually big enough */ | 
| 135 | – | if ((dtype != DTascii) & (fp != stdin)) { | 
| 136 | – | long    startpos = ftell(fp); | 
| 137 | – | if (fseek(fp, 0L, SEEK_END) == 0) { | 
| 138 | – | long    endpos = ftell(fp); | 
| 139 | – | long    elemsiz = 3*(dtype==DTfloat ? | 
| 140 | – | sizeof(float) : sizeof(double)); | 
| 141 | – |  | 
| 142 | – | if ((endpos - startpos) % (ncols*elemsiz)) { | 
| 143 | – | sprintf(errmsg, | 
| 144 | – | "improper length for binary file '%s'", | 
| 145 | – | fname); | 
| 146 | – | error(USER, errmsg); | 
| 147 | – | } | 
| 148 | – | guessrows = (endpos - startpos)/(ncols*elemsiz); | 
| 149 | – | if (fseek(fp, startpos, SEEK_SET) < 0) { | 
| 150 | – | sprintf(errmsg, | 
| 151 | – | "fseek() error on file '%s'", | 
| 152 | – | fname); | 
| 153 | – | error(SYSTEM, errmsg); | 
| 154 | – | } | 
| 155 | – | nrows = guessrows;      /* we're confident */ | 
| 156 | – | } | 
| 157 | – | } | 
| 158 | – | cm = cm_alloc(guessrows, ncols); | 
| 159 | – | } else | 
| 160 | – | cm = cm_alloc(nrows, ncols); | 
| 161 | – | if (cm == NULL) | 
| 162 | – | return(NULL); | 
| 163 | – | if (dtype == DTascii) {                         /* read text file */ | 
| 164 | – | int     maxrow = (nrows > 0 ? nrows : 32000); | 
| 165 | – | int     r, c; | 
| 166 | – | for (r = 0; r < maxrow; r++) { | 
| 167 | – | if (r >= cm->nrows)                 /* need more space? */ | 
| 168 | – | cm = cm_resize(cm, 2*cm->nrows); | 
| 169 | – | for (c = 0; c < ncols; c++) { | 
| 170 | – | COLORV  *cv = cm_lval(cm,r,c); | 
| 171 | – | if (fscanf(fp, COLSPEC, cv, cv+1, cv+2) != 3) | 
| 172 | – | if ((nrows <= 0) & (r > 0) & !c) { | 
| 173 | – | cm = cm_resize(cm, maxrow=r); | 
| 174 | – | break; | 
| 175 | – | } else | 
| 176 | – | goto EOFerror; | 
| 177 | – | } | 
| 178 | – | } | 
| 179 | – | while ((c = getc(fp)) != EOF) | 
| 180 | – | if (!isspace(c)) { | 
| 181 | – | sprintf(errmsg, | 
| 182 | – | "unexpected data at end of ascii file %s", | 
| 183 | – | fname); | 
| 184 | – | error(WARNING, errmsg); | 
| 185 | – | break; | 
| 186 | – | } | 
| 187 | – | } else {                                        /* read binary file */ | 
| 188 | – | if (sizeof(COLORV) == (dtype==DTfloat ? sizeof(float) : | 
| 189 | – | sizeof(double))) { | 
| 190 | – | int     nread = 0; | 
| 191 | – | do {                            /* read all we can */ | 
| 192 | – | nread += fread(cm->cmem + 3*nread, | 
| 193 | – | 3*sizeof(COLORV), | 
| 194 | – | cm->nrows*cm->ncols - nread, | 
| 195 | – | fp); | 
| 196 | – | if (nrows <= 0) {       /* unknown length */ | 
| 197 | – | if (nread == cm->nrows*cm->ncols) | 
| 198 | – | /* need more space? */ | 
| 199 | – | cm = cm_resize(cm, 2*cm->nrows); | 
| 200 | – | else if (nread && !(nread % cm->ncols)) | 
| 201 | – | /* seem to be  done */ | 
| 202 | – | cm = cm_resize(cm, nread/cm->ncols); | 
| 203 | – | else            /* ended mid-row */ | 
| 204 | – | goto EOFerror; | 
| 205 | – | } else if (nread < cm->nrows*cm->ncols) | 
| 206 | – | goto EOFerror; | 
| 207 | – | } while (nread < cm->nrows*cm->ncols); | 
| 208 | – |  | 
| 209 | – | } else if (dtype == DTdouble) { | 
| 210 | – | double  dc[3];                  /* load from double */ | 
| 211 | – | COLORV  *cvp = cm->cmem; | 
| 212 | – | int     n = nrows*ncols; | 
| 213 | – |  | 
| 214 | – | if (n <= 0) | 
| 215 | – | goto not_handled; | 
| 216 | – | while (n--) { | 
| 217 | – | if (fread(dc, sizeof(double), 3, fp) != 3) | 
| 218 | – | goto EOFerror; | 
| 219 | – | copycolor(cvp, dc); | 
| 220 | – | cvp += 3; | 
| 221 | – | } | 
| 222 | – | } else /* dtype == DTfloat */ { | 
| 223 | – | float   fc[3];                  /* load from float */ | 
| 224 | – | COLORV  *cvp = cm->cmem; | 
| 225 | – | int     n = nrows*ncols; | 
| 226 | – |  | 
| 227 | – | if (n <= 0) | 
| 228 | – | goto not_handled; | 
| 229 | – | while (n--) { | 
| 230 | – | if (fread(fc, sizeof(float), 3, fp) != 3) | 
| 231 | – | goto EOFerror; | 
| 232 | – | copycolor(cvp, fc); | 
| 233 | – | cvp += 3; | 
| 234 | – | } | 
| 235 | – | } | 
| 236 | – | if (getc(fp) != EOF) { | 
| 237 | – | sprintf(errmsg, | 
| 238 | – | "unexpected data at end of binary file %s", | 
| 239 | – | fname); | 
| 240 | – | error(WARNING, errmsg); | 
| 241 | – | } | 
| 242 | – | } | 
| 243 | – | if (fp != stdin) | 
| 244 | – | fclose(fp); | 
| 245 | – | return(cm); | 
| 246 | – | EOFerror: | 
| 247 | – | sprintf(errmsg, "unexpected EOF reading %s", | 
| 248 | – | fname); | 
| 249 | – | error(USER, errmsg); | 
| 250 | – | not_handled: | 
| 251 | – | error(INTERNAL, "unhandled data size or length in cm_load()"); | 
| 252 | – | return(NULL);   /* gratis return */ | 
| 253 | – | } | 
| 254 | – |  | 
| 255 | – | /* Multiply two matrices (or a matrix and a vector) and allocate the result*/ | 
| 256 | – | static CMATRIX * | 
| 257 | – | cm_multiply(const CMATRIX *cm1, const CMATRIX *cm2) | 
| 258 | – | { | 
| 259 | – | CMATRIX *cmr; | 
| 260 | – | int     dr, dc, i; | 
| 261 | – |  | 
| 262 | – | if ((cm1->ncols <= 0) | (cm1->ncols != cm2->nrows)) | 
| 263 | – | error(INTERNAL, "matrix dimension mismatch in cm_multiply()"); | 
| 264 | – | cmr = cm_alloc(cm1->nrows, cm2->ncols); | 
| 265 | – | if (cmr == NULL) | 
| 266 | – | return(NULL); | 
| 267 | – | for (dr = 0; dr < cmr->nrows; dr++) | 
| 268 | – | for (dc = 0; dc < cmr->ncols; dc++) { | 
| 269 | – | COLORV  *dp = cm_lval(cmr,dr,dc); | 
| 270 | – | dp[0] = dp[1] = dp[2] = 0; | 
| 271 | – | for (i = 0; i < cm1->ncols; i++) { | 
| 272 | – | const COLORV        *cp1 = cm_lval(cm1,dr,i); | 
| 273 | – | const COLORV        *cp2 = cm_lval(cm2,i,dc); | 
| 274 | – | dp[0] += cp1[0] * cp2[0]; | 
| 275 | – | dp[1] += cp1[1] * cp2[1]; | 
| 276 | – | dp[2] += cp1[2] * cp2[2]; | 
| 277 | – | } | 
| 278 | – | } | 
| 279 | – | return(cmr); | 
| 280 | – | } | 
| 281 | – |  | 
| 282 | – | /* print out matrix as ASCII text -- no header */ | 
| 283 | – | static void | 
| 284 | – | cm_print(const CMATRIX *cm, FILE *fp) | 
| 285 | – | { | 
| 286 | – | int             r, c; | 
| 287 | – | const COLORV    *mp = cm->cmem; | 
| 288 | – |  | 
| 289 | – | for (r = 0; r < cm->nrows; r++) { | 
| 290 | – | for (c = 0; c < cm->ncols; c++, mp += 3) | 
| 291 | – | fprintf(fp, "\t%.6e %.6e %.6e", mp[0], mp[1], mp[2]); | 
| 292 | – | fputc('\n', fp); | 
| 293 | – | } | 
| 294 | – | } | 
| 295 | – |  | 
| 296 | – | /* Convert a BSDF to our matrix representation */ | 
| 297 | – | static CMATRIX * | 
| 298 | – | cm_bsdf(const COLOR bsdfLamb, const COLOR specCol, const SDMat *bsdf) | 
| 299 | – | { | 
| 300 | – | CMATRIX *cm = cm_alloc(bsdf->nout, bsdf->ninc); | 
| 301 | – | int     nbadohm = 0; | 
| 302 | – | int     nneg = 0; | 
| 303 | – | int     r, c; | 
| 304 | – | /* reciprocity is "transparent" */ | 
| 305 | – | for (c = 0; c < cm->ncols; c++) { | 
| 306 | – | const double    dom = mBSDF_incohm(bsdf,c); | 
| 307 | – | /* projected solid angle */ | 
| 308 | – | nbadohm += (dom <= 0); | 
| 309 | – |  | 
| 310 | – | for (r = 0; r < cm->nrows; r++) { | 
| 311 | – | float   f = mBSDF_value(bsdf,c,r); | 
| 312 | – | COLORV  *mp = cm_lval(cm,r,c); | 
| 313 | – | /* check BSDF value */ | 
| 314 | – | if ((f <= 0) | (dom <= 0)) { | 
| 315 | – | nneg += (f < -FTINY); | 
| 316 | – | f = .0f; | 
| 317 | – | } | 
| 318 | – | copycolor(mp, specCol); | 
| 319 | – | scalecolor(mp, f); | 
| 320 | – | addcolor(mp, bsdfLamb); | 
| 321 | – | scalecolor(mp, dom); | 
| 322 | – | } | 
| 323 | – | } | 
| 324 | – | if (nneg | nbadohm) { | 
| 325 | – | sprintf(errmsg, | 
| 326 | – | "BTDF has %d negatives and %d bad incoming solid angles", | 
| 327 | – | nneg, nbadohm); | 
| 328 | – | error(WARNING, errmsg); | 
| 329 | – | } | 
| 330 | – | return(cm); | 
| 331 | – | } | 
| 332 | – |  | 
| 333 | – | /* Load and convert a matrix BSDF from the given XML file */ | 
| 334 | – | static CMATRIX * | 
| 335 | – | cm_loadBSDF(char *fname) | 
| 336 | – | { | 
| 337 | – | CMATRIX *Tmat; | 
| 338 | – | char    *fpath; | 
| 339 | – | SDError ec; | 
| 340 | – | SDData  myBSDF; | 
| 341 | – | COLOR   bsdfLamb, specCol; | 
| 342 | – | /* find path to BSDF file */ | 
| 343 | – | fpath = getpath(fname, getrlibpath(), R_OK); | 
| 344 | – | if (fpath == NULL) { | 
| 345 | – | sprintf(errmsg, "cannot find BSDF file '%s'", fname); | 
| 346 | – | error(USER, errmsg); | 
| 347 | – | } | 
| 348 | – | SDclearBSDF(&myBSDF, fname);    /* load XML and check type */ | 
| 349 | – | ec = SDloadFile(&myBSDF, fpath); | 
| 350 | – | if (ec) | 
| 351 | – | error(USER, transSDError(ec)); | 
| 352 | – | if (myBSDF.tf == NULL || myBSDF.tf->ncomp != 1 || | 
| 353 | – | myBSDF.tf->comp[0].func != &SDhandleMtx) { | 
| 354 | – | sprintf(errmsg, "unsupported BSDF '%s'", fpath); | 
| 355 | – | error(USER, errmsg); | 
| 356 | – | } | 
| 357 | – | /* convert BTDF to matrix */ | 
| 358 | – | ccy2rgb(&myBSDF.tLamb.spec, myBSDF.tLamb.cieY/PI, bsdfLamb); | 
| 359 | – | ccy2rgb(&myBSDF.tf->comp[0].cspec[0], 1., specCol); | 
| 360 | – | Tmat = cm_bsdf(bsdfLamb, specCol, (SDMat *)myBSDF.tf->comp[0].dist); | 
| 361 | – | /* free BSDF and return */ | 
| 362 | – | SDfreeBSDF(&myBSDF); | 
| 363 | – | return(Tmat); | 
| 364 | – | } | 
| 365 | – |  | 
| 366 | – | /* Sum together a set of images and write result to stdout */ | 
| 367 | – | static int | 
| 21 |  | sum_images(const char *fspec, const CMATRIX *cv, FILE *fout) | 
| 22 |  | { | 
| 23 |  | int     myDT = DTfromHeader; | 
| 24 | < | CMATRIX *pmat; | 
| 25 | < | COLOR   *scanline; | 
| 26 | < | int     myXR, myYR; | 
| 24 | > | COLR    *scanline = NULL; | 
| 25 | > | CMATRIX *pmat = NULL; | 
| 26 | > | int     myXR=0, myYR=0; | 
| 27 |  | int     i, y; | 
| 28 |  |  | 
| 29 |  | if (cv->ncols != 1) | 
| 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)) | 
| 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, "r")) == NULL) { | 
| 44 | > | if ((fp = fopen(fname, "rb")) == NULL) { | 
| 45 |  | sprintf(errmsg, "cannot open picture '%s'", fname); | 
| 46 |  | error(SYSTEM, errmsg); | 
| 47 |  | } | 
| 48 | < | SET_FILE_BINARY(fp); | 
| 49 | < | dt = getDTfromHeader(fp); | 
| 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); | 
| 56 |  | if (myDT == DTfromHeader) {             /* on first one */ | 
| 57 |  | myDT = dt; | 
| 58 |  | myXR = xr; myYR = yr; | 
| 59 | < | scanline = (COLOR *)malloc(sizeof(COLOR)*myXR); | 
| 59 | > | scanline = (COLR *)malloc(sizeof(COLR)*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(myDT==DTrgbe ? COLRFMT : CIEFMT, fout); | 
| 65 | > | fputformat((char *)cm_fmt_id[myDT], fout); | 
| 66 |  | fputc('\n', fout); | 
| 411 | – | fprtresolu(myXR, myYR, fout); | 
| 67 |  | fflush(fout); | 
| 68 |  | } else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) { | 
| 69 |  | sprintf(errmsg, "picture '%s' format/size mismatch", | 
| 72 |  | } | 
| 73 |  | psp = pmat->cmem; | 
| 74 |  | for (y = 0; y < yr; y++) {              /* read it in */ | 
| 75 | + | COLOR   col; | 
| 76 |  | int     x; | 
| 77 | < | if (freadscan(scanline, xr, fp) < 0) { | 
| 77 | > | if (freadcolrs(scanline, xr, fp) < 0) { | 
| 78 |  | sprintf(errmsg, "error reading picture '%s'", | 
| 79 |  | fname); | 
| 80 |  | error(SYSTEM, errmsg); | 
| 81 |  | } | 
| 82 |  | /* sum in scanline */ | 
| 83 |  | for (x = 0; x < xr; x++, psp += 3) { | 
| 84 | < | multcolor(scanline[x], scv); | 
| 85 | < | addcolor(psp, scanline[x]); | 
| 84 | > | if (!scanline[x][EXP]) | 
| 85 | > | continue;       /* skip zeroes */ | 
| 86 | > | colr_color(col, scanline[x]); | 
| 87 | > | multcolor(col, scv); | 
| 88 | > | addcolor(psp, col); | 
| 89 |  | } | 
| 90 |  | } | 
| 91 |  | fclose(fp);                             /* done this picture */ | 
| 92 |  | } | 
| 93 |  | free(scanline); | 
| 94 | < | /* write scanlines */ | 
| 95 | < | for (y = 0; y < myYR; y++) | 
| 96 | < | if (fwritescan((COLOR *)cm_lval(pmat, y, 0), myXR, fout) < 0) | 
| 438 | < | return(0); | 
| 439 | < | cm_free(pmat);                                  /* all done */ | 
| 440 | < | return(fflush(fout) == 0); | 
| 94 | > | i = cm_write(pmat, myDT, fout);                 /* write picture */ | 
| 95 | > | cm_free(pmat);                                  /* free data */ | 
| 96 | > | return(i); | 
| 97 |  | } | 
| 98 |  |  | 
| 99 |  | /* check to see if a string contains a %d or %o specification */ | 
| 100 |  | static int | 
| 101 |  | hasNumberFormat(const char *s) | 
| 102 |  | { | 
| 103 | < | while (*s && *s != '%') | 
| 448 | < | s++; | 
| 449 | < | if (!*s) | 
| 103 | > | if (s == NULL) | 
| 104 |  | return(0); | 
| 451 | – | do | 
| 452 | – | ++s; | 
| 453 | – | while (isdigit(*s)); | 
| 105 |  |  | 
| 106 | < | return((*s == 'd') | (*s == 'i') | (*s == 'o') | | 
| 107 | < | (*s == 'x') | (*s == 'X')); | 
| 106 | > | while (*s) { | 
| 107 | > | while (*s != '%') | 
| 108 | > | if (!*s++) | 
| 109 | > | return(0); | 
| 110 | > | if (*++s == '%') {              /* ignore "%%" */ | 
| 111 | > | ++s; | 
| 112 | > | continue; | 
| 113 | > | } | 
| 114 | > | while (isdigit(*s))             /* field length */ | 
| 115 | > | ++s; | 
| 116 | > | /* field we'll use? */ | 
| 117 | > | if ((*s == 'd') | (*s == 'i') | (*s == 'o') | | 
| 118 | > | (*s == 'x') | (*s == 'X')) | 
| 119 | > | return(1); | 
| 120 | > | } | 
| 121 | > | return(0);                              /* didn't find one */ | 
| 122 |  | } | 
| 123 |  |  | 
| 124 |  | int | 
| 125 |  | main(int argc, char *argv[]) | 
| 126 |  | { | 
| 127 | < | CMATRIX                 *cvec; | 
| 127 | > | int             skyfmt = DTfromHeader; | 
| 128 | > | int             outfmt = DTascii; | 
| 129 | > | int             headout = 1; | 
| 130 | > | int             nsteps = 0; | 
| 131 | > | char            *ofspec = NULL; | 
| 132 | > | FILE            *ofp = stdout; | 
| 133 | > | CMATRIX         *cmtx;          /* component vector/matrix result */ | 
| 134 | > | char            fnbuf[256]; | 
| 135 | > | int             a, i; | 
| 136 |  |  | 
| 137 |  | progname = argv[0]; | 
| 138 | + | /* get options */ | 
| 139 | + | for (a = 1; a < argc && argv[a][0] == '-'; a++) | 
| 140 | + | switch (argv[a][1]) { | 
| 141 | + | case 'n': | 
| 142 | + | nsteps = atoi(argv[++a]); | 
| 143 | + | if (nsteps < 0) | 
| 144 | + | goto userr; | 
| 145 | + | skyfmt = nsteps ? DTascii : DTfromHeader; | 
| 146 | + | break; | 
| 147 | + | case 'h': | 
| 148 | + | headout = !headout; | 
| 149 | + | break; | 
| 150 | + | case 'i': | 
| 151 | + | switch (argv[a][2]) { | 
| 152 | + | case 'f': | 
| 153 | + | skyfmt = DTfloat; | 
| 154 | + | break; | 
| 155 | + | case 'd': | 
| 156 | + | skyfmt = DTdouble; | 
| 157 | + | break; | 
| 158 | + | case 'a': | 
| 159 | + | skyfmt = DTascii; | 
| 160 | + | break; | 
| 161 | + | default: | 
| 162 | + | goto userr; | 
| 163 | + | } | 
| 164 | + | break; | 
| 165 | + | case 'o': | 
| 166 | + | switch (argv[a][2]) { | 
| 167 | + | case '\0':      /* output specification (not format) */ | 
| 168 | + | ofspec = argv[++a]; | 
| 169 | + | break; | 
| 170 | + | case 'f': | 
| 171 | + | outfmt = DTfloat; | 
| 172 | + | break; | 
| 173 | + | case 'd': | 
| 174 | + | outfmt = DTdouble; | 
| 175 | + | break; | 
| 176 | + | case 'a': | 
| 177 | + | outfmt = DTascii; | 
| 178 | + | break; | 
| 179 | + | default: | 
| 180 | + | goto userr; | 
| 181 | + | } | 
| 182 | + | break; | 
| 183 | + | default: | 
| 184 | + | goto userr; | 
| 185 | + | } | 
| 186 | + | if ((argc-a < 1) | (argc-a > 4)) | 
| 187 | + | goto userr; | 
| 188 |  |  | 
| 189 | < | if ((argc < 2) | (argc > 5)) { | 
| 190 | < | fprintf(stderr, "Usage: %s DCspec [tregvec]\n", progname); | 
| 191 | < | fprintf(stderr, "   or: %s Vspec Tbsdf.xml Dmat.dat [tregvec]\n", | 
| 192 | < | progname); | 
| 193 | < | return(1); | 
| 194 | < | } | 
| 472 | < |  | 
| 473 | < | if (argc > 3) {                         /* VTDs expression */ | 
| 474 | < | CMATRIX *svec, *Dmat, *Tmat, *ivec; | 
| 475 | < | /* get sky vector */ | 
| 476 | < | svec = cm_load(argv[4], 0, 1, DTascii); | 
| 189 | > | if (argc-a > 2) {                       /* VTDs expression */ | 
| 190 | > | CMATRIX         *smtx, *Dmat, *Tmat, *imtx; | 
| 191 | > | const char      *ccp; | 
| 192 | > | /* get sky vector/matrix */ | 
| 193 | > | smtx = cm_load(argv[a+3], 0, nsteps, skyfmt); | 
| 194 | > | nsteps = smtx->ncols; | 
| 195 |  | /* load BSDF */ | 
| 196 | < | Tmat = cm_loadBSDF(argv[2]); | 
| 196 | > | if (argv[a+1][0] != '!' && | 
| 197 | > | (ccp = strrchr(argv[a+1], '.')) != NULL && | 
| 198 | > | !strcasecmp(ccp+1, "XML")) | 
| 199 | > | Tmat = cm_loadBTDF(argv[a+1]); | 
| 200 | > | else | 
| 201 | > | Tmat = cm_load(argv[a+1], 0, 0, DTfromHeader); | 
| 202 |  | /* load Daylight matrix */ | 
| 203 | < | Dmat = cm_load(argv[3], Tmat->ncols, svec->nrows, DTfromHeader); | 
| 203 | > | Dmat = cm_load(argv[a+2], Tmat->ncols, | 
| 204 | > | smtx->nrows, DTfromHeader); | 
| 205 |  | /* multiply vector through */ | 
| 206 | < | ivec = cm_multiply(Dmat, svec); | 
| 207 | < | cm_free(Dmat); cm_free(svec); | 
| 208 | < | cvec = cm_multiply(Tmat, ivec); /* cvec = component vector */ | 
| 209 | < | cm_free(Tmat); cm_free(ivec); | 
| 210 | < | } else {                                /* else just use sky vector */ | 
| 211 | < | cvec = cm_load(argv[2], 0, 1, DTascii); | 
| 206 | > | imtx = cm_multiply(Dmat, smtx); | 
| 207 | > | cm_free(Dmat); cm_free(smtx); | 
| 208 | > | cmtx = cm_multiply(Tmat, imtx); | 
| 209 | > | cm_free(Tmat); | 
| 210 | > | cm_free(imtx); | 
| 211 | > | } else {                                /* sky vector/matrix only */ | 
| 212 | > | cmtx = cm_load(argv[a+1], 0, nsteps, skyfmt); | 
| 213 | > | nsteps = cmtx->ncols; | 
| 214 |  | } | 
| 215 | < |  | 
| 216 | < | if (hasNumberFormat(argv[1])) {         /* generating image */ | 
| 217 | < | SET_FILE_BINARY(stdout); | 
| 218 | < | newheader("RADIANCE", stdout); | 
| 219 | < | printargs(argc, argv, stdout); | 
| 220 | < | fputnow(stdout); | 
| 221 | < | if (!sum_images(argv[1], cvec, stdout)) | 
| 215 | > | /* prepare output stream */ | 
| 216 | > | if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) { | 
| 217 | > | sprintf(fnbuf, ofspec, 1); | 
| 218 | > | ofspec = fnbuf; | 
| 219 | > | } | 
| 220 | > | if (ofspec != NULL && !hasNumberFormat(ofspec)) { | 
| 221 | > | if ((ofp = fopen(ofspec, "w")) == NULL) { | 
| 222 | > | fprintf(stderr, "%s: cannot open '%s' for output\n", | 
| 223 | > | progname, ofspec); | 
| 224 |  | return(1); | 
| 225 | < | } else {                                /* generating vector */ | 
| 226 | < | CMATRIX *Vmat = cm_load(argv[1], 0, cvec->nrows, DTfromHeader); | 
| 227 | < | CMATRIX *rvec = cm_multiply(Vmat, cvec); | 
| 225 | > | } | 
| 226 | > | ofspec = NULL;                  /* only need to open once */ | 
| 227 | > | } | 
| 228 | > | if (hasNumberFormat(argv[a])) {         /* generating image(s) */ | 
| 229 | > | if (ofspec == NULL) { | 
| 230 | > | SET_FILE_BINARY(ofp); | 
| 231 | > | newheader("RADIANCE", ofp); | 
| 232 | > | printargs(argc, argv, ofp); | 
| 233 | > | fputnow(ofp); | 
| 234 | > | } | 
| 235 | > | if (nsteps > 1)                 /* multiple output frames? */ | 
| 236 | > | for (i = 0; i < nsteps; i++) { | 
| 237 | > | CMATRIX *cvec = cm_column(cmtx, i); | 
| 238 | > | if (ofspec != NULL) { | 
| 239 | > | sprintf(fnbuf, ofspec, i+1); | 
| 240 | > | if ((ofp = fopen(fnbuf, "wb")) == NULL) { | 
| 241 | > | fprintf(stderr, | 
| 242 | > | "%s: cannot open '%s' for output\n", | 
| 243 | > | progname, fnbuf); | 
| 244 | > | return(1); | 
| 245 | > | } | 
| 246 | > | newheader("RADIANCE", ofp); | 
| 247 | > | printargs(argc, argv, ofp); | 
| 248 | > | fputnow(ofp); | 
| 249 | > | } | 
| 250 | > | fprintf(ofp, "FRAME=%d\n", i+1); | 
| 251 | > | if (!sum_images(argv[a], cvec, ofp)) | 
| 252 | > | return(1); | 
| 253 | > | if (ofspec != NULL) { | 
| 254 | > | if (fclose(ofp) == EOF) { | 
| 255 | > | fprintf(stderr, | 
| 256 | > | "%s: error writing to '%s'\n", | 
| 257 | > | progname, fnbuf); | 
| 258 | > | return(1); | 
| 259 | > | } | 
| 260 | > | ofp = stdout; | 
| 261 | > | } | 
| 262 | > | cm_free(cvec); | 
| 263 | > | } | 
| 264 | > | else if (!sum_images(argv[a], cmtx, ofp)) | 
| 265 | > | return(1); | 
| 266 | > | } else {                                /* generating vector/matrix */ | 
| 267 | > | CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader); | 
| 268 | > | CMATRIX *rmtx = cm_multiply(Vmat, cmtx); | 
| 269 |  | cm_free(Vmat); | 
| 270 | < | cm_print(rvec, stdout); | 
| 271 | < | cm_free(rvec); | 
| 270 | > | if (ofspec != NULL) {           /* multiple vector files? */ | 
| 271 | > | const char      *wtype = (outfmt==DTascii) ? "w" : "wb"; | 
| 272 | > | for (i = 0; i < nsteps; i++) { | 
| 273 | > | CMATRIX *rvec = cm_column(rmtx, i); | 
| 274 | > | sprintf(fnbuf, ofspec, i+1); | 
| 275 | > | if ((ofp = fopen(fnbuf, wtype)) == NULL) { | 
| 276 | > | fprintf(stderr, | 
| 277 | > | "%s: cannot open '%s' for output\n", | 
| 278 | > | progname, fnbuf); | 
| 279 | > | return(1); | 
| 280 | > | } | 
| 281 | > | #ifdef getc_unlocked | 
| 282 | > | flockfile(ofp); | 
| 283 | > | #endif | 
| 284 | > | if (headout) {  /* header output */ | 
| 285 | > | newheader("RADIANCE", ofp); | 
| 286 | > | printargs(argc, argv, ofp); | 
| 287 | > | fputnow(ofp); | 
| 288 | > | fprintf(ofp, "FRAME=%d\n", i+1); | 
| 289 | > | fprintf(ofp, "NROWS=%d\n", rvec->nrows); | 
| 290 | > | fputs("NCOLS=1\nNCOMP=3\n", ofp); | 
| 291 | > | fputformat((char *)cm_fmt_id[outfmt], ofp); | 
| 292 | > | fputc('\n', ofp); | 
| 293 | > | } | 
| 294 | > | cm_write(rvec, outfmt, ofp); | 
| 295 | > | if (fclose(ofp) == EOF) { | 
| 296 | > | fprintf(stderr, | 
| 297 | > | "%s: error writing to '%s'\n", | 
| 298 | > | progname, fnbuf); | 
| 299 | > | return(1); | 
| 300 | > | } | 
| 301 | > | ofp = stdout; | 
| 302 | > | cm_free(rvec); | 
| 303 | > | } | 
| 304 | > | } else { | 
| 305 | > | #ifdef getc_unlocked | 
| 306 | > | flockfile(ofp); | 
| 307 | > | #endif | 
| 308 | > | if (outfmt != DTascii) | 
| 309 | > | SET_FILE_BINARY(ofp); | 
| 310 | > | if (headout) {          /* header output */ | 
| 311 | > | newheader("RADIANCE", ofp); | 
| 312 | > | printargs(argc, argv, ofp); | 
| 313 | > | fputnow(ofp); | 
| 314 | > | fprintf(ofp, "NROWS=%d\n", rmtx->nrows); | 
| 315 | > | fprintf(ofp, "NCOLS=%d\n", rmtx->ncols); | 
| 316 | > | fputs("NCOMP=3\n", ofp); | 
| 317 | > | fputformat((char *)cm_fmt_id[outfmt], ofp); | 
| 318 | > | fputc('\n', ofp); | 
| 319 | > | } | 
| 320 | > | cm_write(rmtx, outfmt, ofp); | 
| 321 | > | } | 
| 322 | > | cm_free(rmtx); | 
| 323 |  | } | 
| 324 | < | cm_free(cvec);                          /* final clean-up */ | 
| 324 | > | if (fflush(ofp) == EOF) {               /* final clean-up */ | 
| 325 | > | fprintf(stderr, "%s: write error on output\n", progname); | 
| 326 | > | return(1); | 
| 327 | > | } | 
| 328 | > | cm_free(cmtx); | 
| 329 |  | return(0); | 
| 330 | + | userr: | 
| 331 | + | fprintf(stderr, "Usage: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d}] DCspec [skyf]\n", | 
| 332 | + | progname); | 
| 333 | + | fprintf(stderr, "   or: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d}] Vspec Tbsdf Dmat.dat [skyf]\n", | 
| 334 | + | progname); | 
| 335 | + | return(1); | 
| 336 |  | } |