| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: rmtxop.c,v 2.25 2023/11/29 18:57:10 greg Exp $"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* General component matrix combiner, operating on a row at a time. |
| 6 |
*/ |
| 7 |
|
| 8 |
#include <errno.h> |
| 9 |
#include <math.h> |
| 10 |
#include "platform.h" |
| 11 |
#include "rtio.h" |
| 12 |
#include "resolu.h" |
| 13 |
#include "rmatrix.h" |
| 14 |
#include "calcomp.h" |
| 15 |
#include "paths.h" |
| 16 |
|
| 17 |
#ifndef M_PI |
| 18 |
#define M_PI 3.14159265358979323846 |
| 19 |
#endif |
| 20 |
|
| 21 |
#define MAXCOMP MAXCSAMP /* #components we support */ |
| 22 |
|
| 23 |
/* Unary matrix operation(s) */ |
| 24 |
typedef struct { |
| 25 |
double cmat[MAXCOMP*MAXCOMP]; /* component transformation */ |
| 26 |
double sca[MAXCOMP]; /* scalar coefficients */ |
| 27 |
const char *csym; /* symbolic coefficients */ |
| 28 |
short clen; /* number of coefficients */ |
| 29 |
short nsf; /* number of scalars */ |
| 30 |
} RUNARYOP; |
| 31 |
|
| 32 |
/* Input matrix */ |
| 33 |
typedef struct { |
| 34 |
const char *inspec; /* input specification */ |
| 35 |
RUNARYOP preop; /* transform operation */ |
| 36 |
RMATRIX imx; /* input matrix header info */ |
| 37 |
RMATRIX *rmp; /* active single-row matrix */ |
| 38 |
FILE *infp; /* open input stream */ |
| 39 |
} ROPMAT; |
| 40 |
|
| 41 |
ROPMAT *mop = NULL; /* allocated input array */ |
| 42 |
int nall = 0; /* number allocated */ |
| 43 |
int nmats = 0; /* number of actual inputs */ |
| 44 |
|
| 45 |
RMATRIX *mcat = NULL; /* final concatenation */ |
| 46 |
int mcat_last = 0; /* goes after trailing ops? */ |
| 47 |
|
| 48 |
int in_nrows; /* input row count */ |
| 49 |
#define in_ncols (mop[0].rmp->ncols) /* input column count */ |
| 50 |
#define in_ncomp (mop[0].rmp->ncomp) /* input #components */ |
| 51 |
|
| 52 |
extern int nowarn; /* turn off warnings? */ |
| 53 |
|
| 54 |
int cur_row; /* current input/output row */ |
| 55 |
int cur_col; /* current input/output column */ |
| 56 |
int cur_chan; /* if we're looping channels */ |
| 57 |
|
| 58 |
static int checksymbolic(ROPMAT *rop); |
| 59 |
|
| 60 |
static int |
| 61 |
split_input(ROPMAT *rop) |
| 62 |
{ |
| 63 |
if (rop->rmp == &rop->imx && !(rop->rmp = rmx_copy(&rop->imx))) { |
| 64 |
fputs("Out of memory in split_input()\n", stderr); |
| 65 |
return(0); |
| 66 |
} |
| 67 |
rmx_reset(rop->rmp); |
| 68 |
return(1); |
| 69 |
} |
| 70 |
|
| 71 |
/* Check/set transform based on a reference input file */ |
| 72 |
static int |
| 73 |
checkreffile(ROPMAT *rop) |
| 74 |
{ |
| 75 |
static const char *curRF = NULL; |
| 76 |
static RMATRIX refm; |
| 77 |
const int nc = rop->imx.ncomp; |
| 78 |
int i; |
| 79 |
|
| 80 |
if (!curRF || strcmp(rop->preop.csym, curRF)) { |
| 81 |
FILE *fp = fopen(rop->preop.csym, "rb"); |
| 82 |
if (!rmx_load_header(&refm, fp)) { |
| 83 |
fprintf(stderr, "%s: cannot read info header\n", |
| 84 |
rop->preop.csym); |
| 85 |
curRF = NULL; |
| 86 |
if (fp) fclose(fp); |
| 87 |
return(0); |
| 88 |
} |
| 89 |
fclose(fp); |
| 90 |
curRF = rop->preop.csym; |
| 91 |
} |
| 92 |
if ((refm.ncomp == 3) & (refm.dtype != DTspec)) { |
| 93 |
rop->preop.csym = (refm.dtype == DTxyze) ? "XYZ" : "RGB"; |
| 94 |
return(checksymbolic(rop)); |
| 95 |
} |
| 96 |
if (refm.ncomp == 2) { |
| 97 |
fprintf(stderr, "%s: cannot convert to 2 components\n", |
| 98 |
curRF); |
| 99 |
return(0); |
| 100 |
} |
| 101 |
if (refm.ncomp == 1) { |
| 102 |
rop->preop.csym = "Y"; /* XXX big assumption */ |
| 103 |
return(checksymbolic(rop)); |
| 104 |
} |
| 105 |
if (refm.ncomp == nc && |
| 106 |
!memcmp(refm.wlpart, rop->imx.wlpart, sizeof(refm.wlpart))) |
| 107 |
return(1); /* nothing to do */ |
| 108 |
|
| 109 |
if ((nc <= 3) | (nc > MAXCSAMP) | (refm.ncomp > MAXCSAMP)) { |
| 110 |
fprintf(stderr, "%s: cannot resample from %d to %d components\n", |
| 111 |
curRF, nc, refm.ncomp); |
| 112 |
return(0); |
| 113 |
} |
| 114 |
if (!split_input(rop)) /* get our own struct */ |
| 115 |
return(0); |
| 116 |
rop->preop.clen = refm.ncomp * nc; /* compute spec to ref */ |
| 117 |
|
| 118 |
for (i = 0; i < nc; i++) { |
| 119 |
SCOLOR scstim, scresp; |
| 120 |
int j; |
| 121 |
memset(scstim, 0, sizeof(COLORV)*nc); |
| 122 |
scstim[i] = 1.f; |
| 123 |
convertscolor(scresp, refm.ncomp, refm.wlpart[0], refm.wlpart[3], |
| 124 |
scstim, nc, rop->imx.wlpart[0], rop->imx.wlpart[3]); |
| 125 |
for (j = refm.ncomp; j-- > 0; ) |
| 126 |
rop->preop.cmat[j*nc + i] = scresp[j]; |
| 127 |
} |
| 128 |
/* remember new spectral params */ |
| 129 |
memcpy(rop->rmp->wlpart, refm.wlpart, sizeof(rop->rmp->wlpart)); |
| 130 |
rop->rmp->ncomp = refm.ncomp; |
| 131 |
return(1); |
| 132 |
} |
| 133 |
|
| 134 |
/* Compute conversion row from spectrum to one channel of RGB */ |
| 135 |
static void |
| 136 |
rgbrow(ROPMAT *rop, int r, int p) |
| 137 |
{ |
| 138 |
const int nc = rop->imx.ncomp; |
| 139 |
const float * wlp = rop->imx.wlpart; |
| 140 |
int i; |
| 141 |
|
| 142 |
for (i = nc; i--; ) { |
| 143 |
int nmEnd = wlp[0] + (wlp[3] - wlp[0])*i/nc; |
| 144 |
int nmStart = wlp[0] + (wlp[3] - wlp[0])*(i+1)/nc; |
| 145 |
COLOR crgb; |
| 146 |
spec_rgb(crgb, nmStart, nmEnd); |
| 147 |
rop->preop.cmat[r*nc+i] = crgb[p]; |
| 148 |
} |
| 149 |
} |
| 150 |
|
| 151 |
/* Compute conversion row from spectrum to one channel of XYZ */ |
| 152 |
static void |
| 153 |
xyzrow(ROPMAT *rop, int r, int p) |
| 154 |
{ |
| 155 |
const int nc = rop->imx.ncomp; |
| 156 |
const float * wlp = rop->imx.wlpart; |
| 157 |
int i; |
| 158 |
|
| 159 |
for (i = nc; i--; ) { |
| 160 |
int nmEnd = wlp[0] + (wlp[3] - wlp[0])*i/nc; |
| 161 |
int nmStart = wlp[0] + (wlp[3] - wlp[0])*(i+1)/nc; |
| 162 |
COLOR cxyz; |
| 163 |
spec_cie(cxyz, nmStart, nmEnd); |
| 164 |
rop->preop.cmat[r*nc+i] = cxyz[p]; |
| 165 |
} |
| 166 |
} |
| 167 |
|
| 168 |
/* Use the spectral sensitivity function to compute matrix coefficients */ |
| 169 |
static void |
| 170 |
sensrow(ROPMAT *rop, int r, double (*sf)(SCOLOR sc, int ncs, const float wlpt[4])) |
| 171 |
{ |
| 172 |
const int nc = rop->imx.ncomp; |
| 173 |
int i; |
| 174 |
|
| 175 |
for (i = nc; i--; ) { |
| 176 |
SCOLOR sclr; |
| 177 |
memset(sclr, 0, sizeof(COLORV)*nc); |
| 178 |
sclr[i] = 1.f; |
| 179 |
rop->preop.cmat[r*nc+i] = (*sf)(sclr, nc, rop->imx.wlpart); |
| 180 |
} |
| 181 |
} |
| 182 |
|
| 183 |
/* Check/set symbolic transform */ |
| 184 |
static int |
| 185 |
checksymbolic(ROPMAT *rop) |
| 186 |
{ |
| 187 |
const int nc = rop->imx.ncomp; |
| 188 |
const int dt = rop->imx.dtype; |
| 189 |
int i, j; |
| 190 |
/* check suffix => reference file */ |
| 191 |
if (strchr(rop->preop.csym, '.') > rop->preop.csym) |
| 192 |
return(checkreffile(rop)); |
| 193 |
|
| 194 |
if (nc < 3) { |
| 195 |
fprintf(stderr, "%s: -c '%s' requires at least 3 components\n", |
| 196 |
rop->inspec, rop->preop.csym); |
| 197 |
return(0); |
| 198 |
} |
| 199 |
rop->preop.clen = strlen(rop->preop.csym) * nc; |
| 200 |
if (rop->preop.clen > MAXCOMP*MAXCOMP) { |
| 201 |
fprintf(stderr, "%s: -c '%s' results in too many components\n", |
| 202 |
rop->inspec, rop->preop.csym); |
| 203 |
return(0); |
| 204 |
} |
| 205 |
for (j = 0; rop->preop.csym[j]; j++) { |
| 206 |
int comp = 0; |
| 207 |
switch (rop->preop.csym[j]) { |
| 208 |
case 'B': |
| 209 |
++comp; |
| 210 |
/* fall through */ |
| 211 |
case 'G': |
| 212 |
++comp; |
| 213 |
/* fall through */ |
| 214 |
case 'R': |
| 215 |
if (dt == DTxyze) { |
| 216 |
for (i = 3; i--; ) |
| 217 |
rop->preop.cmat[j*nc+i] = 1./WHTEFFICACY * |
| 218 |
xyz2rgbmat[comp][i]; |
| 219 |
} else if (nc == 3) |
| 220 |
rop->preop.cmat[j*nc+comp] = 1.; |
| 221 |
else |
| 222 |
rgbrow(rop, j, comp); |
| 223 |
break; |
| 224 |
case 'Z': |
| 225 |
++comp; |
| 226 |
/* fall through */ |
| 227 |
case 'Y': |
| 228 |
++comp; |
| 229 |
/* fall through */ |
| 230 |
case 'X': |
| 231 |
if (dt == DTxyze) { |
| 232 |
rop->preop.cmat[j*nc+comp] = 1.; |
| 233 |
} else if (nc == 3) { |
| 234 |
for (i = 3; i--; ) |
| 235 |
rop->preop.cmat[j*nc+i] = |
| 236 |
rgb2xyzmat[comp][i]; |
| 237 |
} else if (comp == CIEY) |
| 238 |
sensrow(rop, j, scolor2photopic); |
| 239 |
else |
| 240 |
xyzrow(rop, j, comp); |
| 241 |
|
| 242 |
for (i = nc*(dt != DTxyze); i--; ) |
| 243 |
rop->preop.cmat[j*nc+i] *= WHTEFFICACY; |
| 244 |
break; |
| 245 |
case 'S': /* scotopic (il)luminance */ |
| 246 |
sensrow(rop, j, scolor2scotopic); |
| 247 |
for (i = nc; i--; ) |
| 248 |
rop->preop.cmat[j*nc+i] *= WHTSCOTOPIC; |
| 249 |
break; |
| 250 |
case 'M': /* melanopic (il)luminance */ |
| 251 |
sensrow(rop, j, scolor2melanopic); |
| 252 |
for (i = nc; i--; ) |
| 253 |
rop->preop.cmat[j*nc+i] *= WHTMELANOPIC; |
| 254 |
break; |
| 255 |
case 'A': /* average component */ |
| 256 |
for (i = nc; i--; ) |
| 257 |
rop->preop.cmat[j*nc+i] = 1./(double)nc; |
| 258 |
break; |
| 259 |
default: |
| 260 |
fprintf(stderr, "%s: -c '%c' unsupported\n", |
| 261 |
rop->inspec, rop->preop.csym[j]); |
| 262 |
return(0); |
| 263 |
} |
| 264 |
} |
| 265 |
if (!split_input(rop)) /* get our own struct */ |
| 266 |
return(0); |
| 267 |
memcpy(rop->rmp->wlpart, WLPART, sizeof(rop->rmp->wlpart)); |
| 268 |
rop->rmp->ncomp = rop->preop.clen / nc; |
| 269 |
/* decide on output type */ |
| 270 |
if (!strcmp(rop->preop.csym, "XYZ")) { |
| 271 |
if (dt <= DTspec) |
| 272 |
rop->rmp->dtype = DTxyze; |
| 273 |
} else if (!strcmp(rop->preop.csym, "RGB")) { |
| 274 |
if (dt <= DTspec) |
| 275 |
rop->rmp->dtype = DTrgbe; |
| 276 |
} |
| 277 |
if (rop->rmp->dtype == DTspec) |
| 278 |
rop->rmp->dtype = DTfloat; |
| 279 |
return(1); |
| 280 |
} |
| 281 |
|
| 282 |
static int |
| 283 |
get_component_xfm(ROPMAT *rop) |
| 284 |
{ |
| 285 |
int i, j; |
| 286 |
|
| 287 |
if (rop->rmp != &rop->imx) { /* reset destination matrix */ |
| 288 |
rmx_free(rop->rmp); |
| 289 |
rop->rmp = &rop->imx; |
| 290 |
} |
| 291 |
if (rop->preop.csym && /* symbolic transform? */ |
| 292 |
!checksymbolic(rop)) |
| 293 |
return(0); |
| 294 |
/* undo exposure? */ |
| 295 |
if (fabs(1. - bright(rop->rmp->cexp)) > .025) { |
| 296 |
if (rop->rmp->ncomp == 1) |
| 297 |
rop->rmp->cexp[RED] = rop->rmp->cexp[GRN] = |
| 298 |
rop->rmp->cexp[BLU] = bright(rop->rmp->cexp); |
| 299 |
if (rop->preop.nsf <= 0) { |
| 300 |
rop->preop.nsf = i = rop->rmp->ncomp; |
| 301 |
while (i--) |
| 302 |
rop->preop.sca[i] = 1.; |
| 303 |
} |
| 304 |
if (rop->preop.nsf == 1) |
| 305 |
rop->preop.sca[0] /= rop->rmp->cexp[GRN]; |
| 306 |
else if (rop->preop.nsf == 3) |
| 307 |
opcolor(rop->preop.sca, /=, rop->rmp->cexp); |
| 308 |
else if (rop->preop.nsf > 3) { /* punt */ |
| 309 |
double mult = 1./bright(rop->rmp->cexp); |
| 310 |
for (i = rop->preop.nsf; i--; ) |
| 311 |
rop->preop.sca[i] *= mult; |
| 312 |
} |
| 313 |
setcolor(rop->rmp->cexp, 1., 1., 1.); |
| 314 |
} |
| 315 |
if (rop->preop.clen > 0) { /* use component transform? */ |
| 316 |
if (rop->preop.clen % rop->imx.ncomp) { |
| 317 |
fprintf(stderr, "%s: -c must have N x %d coefficients\n", |
| 318 |
rop->inspec, rop->imx.ncomp); |
| 319 |
return(0); |
| 320 |
} |
| 321 |
if (rop->preop.nsf > 0) { /* scale transform, instead */ |
| 322 |
if (rop->preop.nsf == 1) { |
| 323 |
for (i = rop->preop.clen; i--; ) |
| 324 |
rop->preop.cmat[i] *= rop->preop.sca[0]; |
| 325 |
} else if (rop->preop.nsf*rop->imx.ncomp != rop->preop.clen) { |
| 326 |
fprintf(stderr, "%s: -s must have one or %d factors\n", |
| 327 |
rop->inspec, |
| 328 |
rop->preop.clen/rop->imx.ncomp); |
| 329 |
return(0); |
| 330 |
} else { |
| 331 |
for (i = rop->preop.nsf; i--; ) |
| 332 |
for (j = rop->imx.ncomp; j--; ) |
| 333 |
rop->preop.cmat[i*rop->imx.ncomp+j] |
| 334 |
*= rop->preop.sca[i]; |
| 335 |
} |
| 336 |
} |
| 337 |
rop->preop.nsf = 0; /* now folded in */ |
| 338 |
if (!split_input(rop)) /* get our own struct */ |
| 339 |
return(0); |
| 340 |
rop->rmp->ncomp = rop->preop.clen / rop->imx.ncomp; |
| 341 |
if (rop->rmp->dtype <= DTspec) |
| 342 |
rop->rmp->dtype = DTfloat; /* probably not actual spectrum */ |
| 343 |
} else if (rop->preop.nsf > 0) { /* else use scalar(s)? */ |
| 344 |
if (rop->preop.nsf == 1) { |
| 345 |
for (i = rop->rmp->ncomp; --i; ) |
| 346 |
rop->preop.sca[i] = rop->preop.sca[0]; |
| 347 |
rop->preop.nsf = rop->rmp->ncomp; |
| 348 |
} else if (rop->preop.nsf != rop->rmp->ncomp) { |
| 349 |
fprintf(stderr, "%s: -s must have one or %d factors\n", |
| 350 |
rop->inspec, rop->rmp->ncomp); |
| 351 |
return(0); |
| 352 |
} |
| 353 |
} |
| 354 |
return(1); |
| 355 |
} |
| 356 |
|
| 357 |
static int |
| 358 |
apply_op(RMATRIX *dst, const RMATRIX *src, const RUNARYOP *ro) |
| 359 |
{ |
| 360 |
/* |
| 361 |
if (!dst | !src | !ro || (dst->nrows != src->nrows) | |
| 362 |
(dst->ncols != src->ncols)) |
| 363 |
return(0); |
| 364 |
*/ |
| 365 |
if (ro->clen > 0) { |
| 366 |
RMATRIX *res = rmx_transform(src, dst->ncomp, ro->cmat); |
| 367 |
if (!res) { |
| 368 |
fputs("Error in call to rmx_transform()\n", stderr); |
| 369 |
return(0); |
| 370 |
} |
| 371 |
if (dst->mtx) free(dst->mtx); |
| 372 |
dst->mtx = res->mtx; res->mtx = NULL; |
| 373 |
rmx_free(res); |
| 374 |
} else if (dst != src) |
| 375 |
memcpy(dst->mtx, src->mtx, |
| 376 |
sizeof(double)*dst->ncomp*dst->ncols*dst->nrows); |
| 377 |
if (ro->nsf == dst->ncomp) |
| 378 |
rmx_scale(dst, ro->sca); |
| 379 |
return(1); |
| 380 |
} |
| 381 |
|
| 382 |
static int |
| 383 |
open_input(ROPMAT *rop) |
| 384 |
{ |
| 385 |
int outtype; |
| 386 |
|
| 387 |
if (!rop || !rop->inspec || !rop->inspec[0]) |
| 388 |
return(0); |
| 389 |
if (rop->inspec == stdin_name) |
| 390 |
rop->infp = stdin; |
| 391 |
else if (rop->inspec[0] == '!') |
| 392 |
rop->infp = popen(rop->inspec+1, "r"); |
| 393 |
else |
| 394 |
rop->infp = fopen(rop->inspec, "rb"); |
| 395 |
|
| 396 |
if (!rmx_load_header(&rop->imx, rop->infp)) { |
| 397 |
fprintf(stderr, "Bad header from: %s\n", rop->inspec); |
| 398 |
return(0); |
| 399 |
} |
| 400 |
return(get_component_xfm(rop)); |
| 401 |
} |
| 402 |
|
| 403 |
/* Return nominal wavelength associated with input component (return nm) */ |
| 404 |
static double |
| 405 |
l_wavelength(char *nam) |
| 406 |
{ |
| 407 |
double comp = argument(1); |
| 408 |
|
| 409 |
if ((comp < -.5) | (comp >= in_ncomp+.5)) { |
| 410 |
errno = EDOM; |
| 411 |
return(.0); |
| 412 |
} |
| 413 |
if (comp < .5) /* asking for #components? */ |
| 414 |
return(in_ncomp); |
| 415 |
|
| 416 |
if (in_ncomp == 3) { /* special case for RGB */ |
| 417 |
const int w0 = (int)(comp - .5); |
| 418 |
return(mop[0].rmp->wlpart[w0] + |
| 419 |
(comp-.5)*(mop[0].rmp->wlpart[w0+1] - |
| 420 |
mop[0].rmp->wlpart[w0])); |
| 421 |
} |
| 422 |
return(mop[0].rmp->wlpart[0] + /* general case, even div. */ |
| 423 |
(comp-.5)/(double)in_ncomp * |
| 424 |
(mop[0].rmp->wlpart[3] - mop[0].rmp->wlpart[0])); |
| 425 |
} |
| 426 |
|
| 427 |
/* Return ith input with optional channel selector */ |
| 428 |
static double |
| 429 |
l_chanin(char *nam) |
| 430 |
{ |
| 431 |
double inp = argument(1); |
| 432 |
int mi, chan; |
| 433 |
|
| 434 |
if ((mi = (int)(inp-.5)) < 0 || mi >= nmats) { |
| 435 |
errno = EDOM; |
| 436 |
return(.0); |
| 437 |
} |
| 438 |
if (!mi) /* asking for #inputs? */ |
| 439 |
return(nmats); |
| 440 |
|
| 441 |
if (nargum() >= 2) { |
| 442 |
double cval = argument(2); |
| 443 |
if (cval < .5 || (chan = (int)(cval-.5)) >= in_ncomp) { |
| 444 |
errno = EDOM; |
| 445 |
return(.0); |
| 446 |
} |
| 447 |
} else |
| 448 |
chan = cur_chan; |
| 449 |
|
| 450 |
return(mop[mi].rmp->mtx[cur_col*in_ncomp + chan]); |
| 451 |
} |
| 452 |
|
| 453 |
static int |
| 454 |
initialize(RMATRIX *imp) |
| 455 |
{ |
| 456 |
int i; |
| 457 |
/* XXX struct is zeroed coming in */ |
| 458 |
setcolor(imp->cexp, 1.f, 1.f, 1.f); |
| 459 |
for (i = 0; i < nmats; i++) { /* open each input */ |
| 460 |
int restype; |
| 461 |
if (!open_input(&mop[i])) |
| 462 |
return(0); |
| 463 |
restype = mop[i].rmp->dtype; |
| 464 |
if (!imp->dtype || (restype = rmx_newtype(restype, imp->dtype)) > 0) |
| 465 |
imp->dtype = restype; |
| 466 |
else |
| 467 |
fprintf(stderr, "%s: warning - data type mismatch\n", |
| 468 |
mop[i].inspec); |
| 469 |
if (!i) { |
| 470 |
imp->nrows = in_nrows = mop[0].rmp->nrows; |
| 471 |
imp->ncols = mop[0].rmp->ncols; |
| 472 |
imp->ncomp = mop[0].rmp->ncomp; |
| 473 |
memcpy(imp->wlpart, mop[0].rmp->wlpart, sizeof(imp->wlpart)); |
| 474 |
} else if ((mop[i].rmp->nrows != imp->nrows) | |
| 475 |
(mop[i].rmp->ncols != imp->ncols) | |
| 476 |
(mop[i].rmp->ncomp != imp->ncomp)) { |
| 477 |
fprintf(stderr, "%s: mismatch in size or #components\n", |
| 478 |
mop[i].inspec); |
| 479 |
return(0); |
| 480 |
} /* XXX should check wlpart? */ |
| 481 |
} /* set up .cal environment */ |
| 482 |
esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
| 483 |
esupport &= ~(E_OUTCHAN|E_INCHAN); |
| 484 |
varset("PI", ':', M_PI); |
| 485 |
varset("nfiles", ':', nmats); |
| 486 |
varset("nrows", ':', in_nrows); |
| 487 |
varset("ncols", ':', in_ncols); |
| 488 |
varset("ncomp", ':', in_ncomp); |
| 489 |
varset("R", ':', 1.); |
| 490 |
varset("G", ':', 2.); |
| 491 |
varset("B", ':', 3.); |
| 492 |
funset("wl", 1, ':', l_wavelength); |
| 493 |
funset("ci", 1, '=', l_chanin); |
| 494 |
scompile("ri(i)=ci(i,R);gi(i)=ci(i,G);bi(i)=ci(i,B)", NULL, 0); |
| 495 |
return(1); |
| 496 |
} |
| 497 |
|
| 498 |
static void |
| 499 |
output_headinfo(FILE *fp) |
| 500 |
{ |
| 501 |
int i; |
| 502 |
|
| 503 |
for (i = 0; i < nmats; i++) { |
| 504 |
const char *cp = mop[i].imx.info; |
| 505 |
fputs(mop[i].inspec, fp); |
| 506 |
fputs(":\n", fp); |
| 507 |
if (!cp) continue; |
| 508 |
while (*cp) { |
| 509 |
if (*cp == '\n') { |
| 510 |
cp++; /* avoid inadvertant terminus */ |
| 511 |
continue; |
| 512 |
} |
| 513 |
fputc('\t', fp); /* indent this input's info */ |
| 514 |
do |
| 515 |
putc(*cp, fp); |
| 516 |
while (*cp++ != '\n'); |
| 517 |
} |
| 518 |
} |
| 519 |
} |
| 520 |
|
| 521 |
static int |
| 522 |
combine_input(ROPMAT *res, FILE *fout) |
| 523 |
{ |
| 524 |
int user_set_r, user_set_c; |
| 525 |
RMATRIX *tmp = NULL; |
| 526 |
int co_set; |
| 527 |
int i; |
| 528 |
/* allocate input row buffers */ |
| 529 |
for (i = 0; i < nmats; i++) { |
| 530 |
mop[i].imx.nrows = 1; /* we'll be doing a row at a time */ |
| 531 |
if (!rmx_prepare(&mop[i].imx)) |
| 532 |
goto memerror; |
| 533 |
if (mop[i].rmp != &mop[i].imx) { |
| 534 |
mop[i].rmp->nrows = 1; |
| 535 |
if (!rmx_prepare(mop[i].rmp)) |
| 536 |
goto memerror; |
| 537 |
} |
| 538 |
} |
| 539 |
/* prep output row buffers */ |
| 540 |
if (mcat || res->preop.clen > 0) { |
| 541 |
if (!split_input(res)) /* need separate buffer */ |
| 542 |
return(0); |
| 543 |
if (res->preop.clen > 0) |
| 544 |
res->rmp->ncomp = res->preop.clen / res->imx.ncomp; |
| 545 |
res->rmp->nrows = 1; |
| 546 |
if (!mcat | !mcat_last && !rmx_prepare(res->rmp)) |
| 547 |
goto memerror; |
| 548 |
} |
| 549 |
if (mcat && mcat_last && |
| 550 |
!(tmp = rmx_new(1, res->imx.ncols, res->rmp->ncomp))) |
| 551 |
goto memerror; |
| 552 |
res->imx.nrows = 1; |
| 553 |
if (!rmx_prepare(&res->imx)) |
| 554 |
goto memerror; |
| 555 |
/* figure out what the user set */ |
| 556 |
co_set = fundefined("co"); |
| 557 |
if (!co_set) |
| 558 |
co_set = -vardefined("co"); |
| 559 |
if (!co_set & (in_ncomp == 3) && vardefined("ro") && |
| 560 |
vardefined("go") && vardefined("bo")) { |
| 561 |
scompile("co(p)=select(p,ro,go,bo)", NULL, 0); |
| 562 |
co_set = 1; |
| 563 |
} |
| 564 |
user_set_r = vardefined("r"); |
| 565 |
user_set_c = vardefined("c"); |
| 566 |
/* read/process row-by-row */ |
| 567 |
for (cur_row = 0; cur_row < in_nrows; cur_row++) { |
| 568 |
RMATRIX *mres = NULL; |
| 569 |
for (i = 0; i < nmats; i++) { |
| 570 |
if (!rmx_load_row(mop[i].imx.mtx, &mop[i].imx, mop[i].infp)) |
| 571 |
return(0); |
| 572 |
if (!apply_op(mop[i].rmp, &mop[i].imx, &mop[i].preop)) |
| 573 |
return(0); |
| 574 |
} |
| 575 |
if (!user_set_r) varset("r", '=', cur_row); |
| 576 |
for (cur_col = 0; cur_col < in_ncols; cur_col++) { |
| 577 |
if (!user_set_c) varset("c", '=', cur_col); |
| 578 |
for (cur_chan = 0; cur_chan < in_ncomp; cur_chan++) { |
| 579 |
const int ndx = cur_col*in_ncomp + cur_chan; |
| 580 |
eclock++; |
| 581 |
if (!co_set) { /* just summing elements? */ |
| 582 |
res->imx.mtx[ndx] = 0; |
| 583 |
for (i = nmats; i--; ) |
| 584 |
res->imx.mtx[ndx] += mop[i].rmp->mtx[ndx]; |
| 585 |
} else if (co_set > 0) { |
| 586 |
double dchan = cur_chan; |
| 587 |
res->imx.mtx[ndx] = funvalue("co", 1, &dchan); |
| 588 |
} else |
| 589 |
res->imx.mtx[ndx] = varvalue("co"); |
| 590 |
} |
| 591 |
} /* final conversions */ |
| 592 |
if (!mcat) { |
| 593 |
if (!apply_op(res->rmp, &res->imx, &res->preop)) |
| 594 |
return(0); |
| 595 |
} else if (mcat_last) { |
| 596 |
if (!apply_op(tmp, &res->imx, &res->preop)) |
| 597 |
return(0); |
| 598 |
mres = rmx_multiply(tmp, mcat); |
| 599 |
if (!mres) |
| 600 |
goto multerror; |
| 601 |
if (res->rmp->mtx) free(res->rmp->mtx); |
| 602 |
res->rmp->mtx = mres->mtx; mres->mtx = NULL; |
| 603 |
} else /* mcat && !mcat_last */ { |
| 604 |
mres = rmx_multiply(&res->imx, mcat); |
| 605 |
if (!mres) |
| 606 |
goto multerror; |
| 607 |
if (!apply_op(res->rmp, mres, &res->preop)) |
| 608 |
return(0); |
| 609 |
} |
| 610 |
rmx_free(mres); mres = NULL; |
| 611 |
if (!rmx_write_data(res->rmp->mtx, res->rmp->ncomp, |
| 612 |
res->rmp->ncols, res->rmp->dtype, fout)) |
| 613 |
return(0); |
| 614 |
} |
| 615 |
rmx_free(tmp); /* clean up */ |
| 616 |
if (res->rmp != &res->imx) { |
| 617 |
rmx_free(res->rmp); |
| 618 |
res->rmp = NULL; |
| 619 |
} |
| 620 |
rmx_reset(&res->imx); |
| 621 |
return(1); |
| 622 |
memerror: |
| 623 |
fputs("Out of buffer space in combine_input()\n", stderr); |
| 624 |
return(0); |
| 625 |
multerror: |
| 626 |
fputs("Unexpected matrix multiply error in combine_input()\n", stderr); |
| 627 |
return(0); |
| 628 |
} |
| 629 |
|
| 630 |
static int |
| 631 |
get_factors(double da[], int n, char *av[]) |
| 632 |
{ |
| 633 |
int ac; |
| 634 |
|
| 635 |
for (ac = 0; ac < n && isflt(av[ac]); ac++) |
| 636 |
da[ac] = atof(av[ac]); |
| 637 |
return(ac); |
| 638 |
} |
| 639 |
|
| 640 |
static void |
| 641 |
resize_inparr(int n2alloc) |
| 642 |
{ |
| 643 |
int i; |
| 644 |
|
| 645 |
for (i = nmats; i > n2alloc; i--) { |
| 646 |
rmx_reset(&mop[i].imx); |
| 647 |
if (mop[i].rmp != &mop[i].imx) |
| 648 |
rmx_free(mop[i].rmp); |
| 649 |
} |
| 650 |
mop = (ROPMAT *)realloc(mop, n2alloc*sizeof(ROPMAT)); |
| 651 |
if (mop == NULL) { |
| 652 |
fputs("Out of memory in resize_inparr()\n", stderr); |
| 653 |
exit(1); |
| 654 |
} |
| 655 |
if (n2alloc > nmats) |
| 656 |
memset(mop+nmats, 0, (n2alloc-nmats)*sizeof(ROPMAT)); |
| 657 |
nall = n2alloc; |
| 658 |
} |
| 659 |
|
| 660 |
/* Load one or more matrices and operate on them, sending results to stdout */ |
| 661 |
int |
| 662 |
main(int argc, char *argv[]) |
| 663 |
{ |
| 664 |
|
| 665 |
int outfmt = DTfromHeader; |
| 666 |
const char *defCsym = NULL; |
| 667 |
int echoheader = 1; |
| 668 |
int stdin_used = 0; |
| 669 |
const char *mcat_spec = NULL; |
| 670 |
int n2comp = 0; |
| 671 |
uby8 comp_ndx[128]; |
| 672 |
int i; |
| 673 |
/* get starting input array */ |
| 674 |
mop = (ROPMAT *)calloc(nall=2, sizeof(ROPMAT)); |
| 675 |
/* get options and arguments */ |
| 676 |
for (i = 1; i < argc; i++) |
| 677 |
if (argv[i][0] != '-' || !argv[i][1]) { |
| 678 |
if (argv[i][0] == '-') { |
| 679 |
if (stdin_used++) goto stdin_error; |
| 680 |
mop[nmats].inspec = stdin_name; |
| 681 |
} else |
| 682 |
mop[nmats].inspec = argv[i]; |
| 683 |
if (!mop[nmats].preop.csym) |
| 684 |
mop[nmats].preop.csym = defCsym; |
| 685 |
if (++nmats >= nall) |
| 686 |
resize_inparr(nmats + (nmats>>2) + 2); |
| 687 |
} else { |
| 688 |
int n = argc-1 - i; |
| 689 |
switch (argv[i][1]) { /* get option */ |
| 690 |
case 'w': |
| 691 |
nowarn = !nowarn; |
| 692 |
break; |
| 693 |
case 'h': |
| 694 |
echoheader = !echoheader; |
| 695 |
break; |
| 696 |
case 'e': |
| 697 |
if (!n) goto userr; |
| 698 |
comp_ndx[n2comp++] = i++; |
| 699 |
break; |
| 700 |
case 'f': |
| 701 |
switch (argv[i][2]) { |
| 702 |
case '\0': |
| 703 |
if (!n) goto userr; |
| 704 |
comp_ndx[n2comp++] = i++; |
| 705 |
break; |
| 706 |
case 'd': |
| 707 |
outfmt = DTdouble; |
| 708 |
break; |
| 709 |
case 'f': |
| 710 |
outfmt = DTfloat; |
| 711 |
break; |
| 712 |
case 'a': |
| 713 |
outfmt = DTascii; |
| 714 |
break; |
| 715 |
case 'c': |
| 716 |
outfmt = DTrgbe; |
| 717 |
break; |
| 718 |
default: |
| 719 |
goto userr; |
| 720 |
} |
| 721 |
break; |
| 722 |
case 's': |
| 723 |
if (n > MAXCOMP) n = MAXCOMP; |
| 724 |
i += mop[nmats].preop.nsf = |
| 725 |
get_factors(mop[nmats].preop.sca, |
| 726 |
n, argv+i+1); |
| 727 |
if (mop[nmats].preop.nsf <= 0) { |
| 728 |
fprintf(stderr, "%s: -s missing arguments\n", |
| 729 |
argv[0]); |
| 730 |
goto userr; |
| 731 |
} |
| 732 |
break; |
| 733 |
case 'C': |
| 734 |
if (!n || isflt(argv[i+1])) |
| 735 |
goto userr; |
| 736 |
defCsym = mop[nmats].preop.csym = argv[++i]; |
| 737 |
mop[nmats].preop.clen = 0; |
| 738 |
mcat_last = 0; |
| 739 |
break; |
| 740 |
case 'c': |
| 741 |
if (n && !isflt(argv[i+1])) { |
| 742 |
mop[nmats].preop.csym = argv[++i]; |
| 743 |
mop[nmats].preop.clen = 0; |
| 744 |
break; |
| 745 |
} |
| 746 |
if (n > MAXCOMP*MAXCOMP) n = MAXCOMP*MAXCOMP; |
| 747 |
i += mop[nmats].preop.clen = |
| 748 |
get_factors(mop[nmats].preop.cmat, |
| 749 |
n, argv+i+1); |
| 750 |
if (mop[nmats].preop.clen <= 0) { |
| 751 |
fprintf(stderr, "%s: -c missing arguments\n", |
| 752 |
argv[0]); |
| 753 |
goto userr; |
| 754 |
} |
| 755 |
mop[nmats].preop.csym = NULL; |
| 756 |
mcat_last = 0; |
| 757 |
break; |
| 758 |
case 'm': |
| 759 |
if (!n) goto userr; |
| 760 |
if (argv[++i][0] == '-' && !argv[i][1]) { |
| 761 |
if (stdin_used++) goto stdin_error; |
| 762 |
mcat_spec = stdin_name; |
| 763 |
} else |
| 764 |
mcat_spec = argv[i]; |
| 765 |
mcat_last = 1; |
| 766 |
break; |
| 767 |
default: |
| 768 |
fprintf(stderr, "%s: unknown option '%s'\n", |
| 769 |
argv[0], argv[i]); |
| 770 |
goto userr; |
| 771 |
} |
| 772 |
} |
| 773 |
if (!nmats) { |
| 774 |
fprintf(stderr, "%s: need at least one input matrix\n", argv[0]); |
| 775 |
goto userr; |
| 776 |
} |
| 777 |
resize_inparr(nmats+1); /* extra matrix at end for result */ |
| 778 |
mop[nmats].inspec = "trailing_ops"; |
| 779 |
/* load final concatenation matrix */ |
| 780 |
if (mcat_spec && !(mcat = rmx_load(mcat_spec, RMPnone))) { |
| 781 |
fprintf(stderr, "%s: error loading concatenation matrix: %s", |
| 782 |
argv[0], mcat_spec); |
| 783 |
return(1); |
| 784 |
} |
| 785 |
/* get/check inputs, set constants */ |
| 786 |
if (!initialize(&mop[nmats].imx)) |
| 787 |
return(1); |
| 788 |
|
| 789 |
for (i = 0; i < n2comp; i++) /* user .cal files and expressions */ |
| 790 |
if (argv[comp_ndx[i]][1] == 'f') { |
| 791 |
char *fpath = getpath(argv[comp_ndx[i]+1], |
| 792 |
getrlibpath(), 0); |
| 793 |
if (fpath == NULL) { |
| 794 |
fprintf(stderr, "%s: cannot find file '%s'\n", |
| 795 |
argv[0], argv[comp_ndx[i]+1]); |
| 796 |
return(1); |
| 797 |
} |
| 798 |
fcompile(fpath); |
| 799 |
} else /* (argv[comp_ndx[i]][1] == 'e') */ |
| 800 |
scompile(argv[comp_ndx[i]+1], NULL, 0); |
| 801 |
|
| 802 |
/* get trailing color transform */ |
| 803 |
if (!get_component_xfm(&mop[nmats])) |
| 804 |
return(1); |
| 805 |
/* adjust output dimensions and #components */ |
| 806 |
if (mcat) { |
| 807 |
if (mop[nmats].imx.ncols != mcat->nrows) { |
| 808 |
fprintf(stderr, |
| 809 |
"%s: number of input columns does not match number of rows in '%s'\n", |
| 810 |
argv[0], mcat_spec); |
| 811 |
return(1); |
| 812 |
} |
| 813 |
if (mcat->ncomp != (mcat_last ? mop[nmats].rmp->ncomp : mop[nmats].imx.ncomp)) { |
| 814 |
fprintf(stderr, |
| 815 |
"%s: number of components does not match those in '%s'\n", |
| 816 |
argv[0], mcat_spec); |
| 817 |
return(1); |
| 818 |
} |
| 819 |
mop[nmats].rmp->ncols = mcat->ncols; |
| 820 |
} |
| 821 |
if (outfmt == DTfromHeader) /* set final output format */ |
| 822 |
outfmt = mop[nmats].rmp->dtype; |
| 823 |
if (outfmt == DTrgbe) { |
| 824 |
if (mop[nmats].rmp->ncomp > 3) |
| 825 |
outfmt = DTspec; |
| 826 |
else if (mop[nmats].rmp->dtype == DTxyze) |
| 827 |
outfmt = DTxyze; |
| 828 |
} |
| 829 |
mop[nmats].rmp->dtype = outfmt; |
| 830 |
if (outfmt != DTascii) |
| 831 |
SET_FILE_BINARY(stdout); |
| 832 |
/* write output header */ |
| 833 |
newheader("RADIANCE", stdout); |
| 834 |
if (echoheader) |
| 835 |
output_headinfo(stdout); |
| 836 |
printargs(argc, argv, stdout); |
| 837 |
fputnow(stdout); |
| 838 |
mop[nmats].rmp->dtype = rmx_write_header(mop[nmats].rmp, mop[nmats].rmp->dtype, stdout); |
| 839 |
if (mop[nmats].rmp->dtype <= 0) { |
| 840 |
fprintf(stderr, "%s: unexpected error writing header!\n", argv[0]); |
| 841 |
return(1); |
| 842 |
} |
| 843 |
/* process & write rows */ |
| 844 |
return(combine_input(&mop[nmats], stdout) ? 0 : 1); |
| 845 |
stdin_error: |
| 846 |
fprintf(stderr, "%s: %s used for more than one input\n", |
| 847 |
argv[0], stdin_name); |
| 848 |
return(1); |
| 849 |
userr: |
| 850 |
fprintf(stderr, |
| 851 |
"Usage: %s [-h][-f{adfc}][-e expr][-f file][-s sf .. | -c ce ..] m1 .. -m mcat > mres\n", |
| 852 |
argv[0]); |
| 853 |
return(1); |
| 854 |
} |
