| 20 |
|
static int |
| 21 |
|
sum_images(const char *fspec, const CMATRIX *cv, FILE *fout) |
| 22 |
|
{ |
| 23 |
+ |
static int runcnt = 0; |
| 24 |
|
int myDT = DTfromHeader; |
| 25 |
|
COLR *scanline = NULL; |
| 26 |
|
CMATRIX *pmat = NULL; |
| 29 |
|
|
| 30 |
|
if (cv->ncols != 1) |
| 31 |
|
error(INTERNAL, "expected vector in sum_images()"); |
| 32 |
< |
for (i = 0; i < cv->nrows; i++) { |
| 33 |
< |
const COLORV *scv = cv_lval(cv,i); |
| 32 |
> |
for (i = cv->nrows; i-- > 0; ) { |
| 33 |
> |
const int r = runcnt&1 ? i : cv->nrows-1 - i; |
| 34 |
> |
const COLORV *scv = cv_lval(cv,r); |
| 35 |
|
int flat_file = 0; |
| 36 |
|
char fname[1024]; |
| 37 |
|
FILE *fp; |
| 41 |
|
char *err; |
| 42 |
|
/* check for zero */ |
| 43 |
|
if ((scv[RED] == 0) & (scv[GRN] == 0) & (scv[BLU] == 0) && |
| 44 |
< |
(myDT != DTfromHeader) | (i < cv->nrows-1)) |
| 44 |
> |
(myDT != DTfromHeader) | (i > 0)) |
| 45 |
|
continue; |
| 46 |
|
/* open next picture */ |
| 47 |
< |
sprintf(fname, fspec, i); |
| 47 |
> |
sprintf(fname, fspec, r); |
| 48 |
|
if ((fp = fopen(fname, "rb")) == NULL) { |
| 49 |
|
sprintf(errmsg, "cannot open picture '%s'", fname); |
| 50 |
|
error(SYSTEM, errmsg); |
| 51 |
|
} |
| 52 |
+ |
#ifdef getc_unlocked |
| 53 |
+ |
flockfile(fp); |
| 54 |
+ |
#endif |
| 55 |
|
dt = DTfromHeader; |
| 56 |
|
if ((err = cm_getheader(&dt, NULL, NULL, NULL, NULL, fp)) != NULL) |
| 57 |
|
error(USER, err); |
| 79 |
|
} |
| 80 |
|
/* flat file check */ |
| 81 |
|
if ((data_start = ftell(fp)) > 0 && fseek(fp, 0L, SEEK_END) == 0) { |
| 82 |
< |
flat_file = (ftell(fp) == data_start + sizeof(COLR)*xr*yr); |
| 82 |
> |
flat_file = (ftell(fp) >= data_start + sizeof(COLR)*xr*yr); |
| 83 |
|
if (fseek(fp, data_start, SEEK_SET) < 0) { |
| 84 |
|
sprintf(errmsg, "cannot seek on picture '%s'", fname); |
| 85 |
|
error(SYSTEM, errmsg); |
| 109 |
|
free(scanline); |
| 110 |
|
i = cm_write(pmat, myDT, fout); /* write picture */ |
| 111 |
|
cm_free(pmat); /* free data */ |
| 112 |
+ |
++runcnt; /* for zig-zagging */ |
| 113 |
|
return(i); |
| 114 |
|
} |
| 115 |
|
|
| 250 |
|
nsteps = smtx->ncols; |
| 251 |
|
/* load BSDF */ |
| 252 |
|
if (argv[a+1][0] != '!' && |
| 253 |
< |
(ccp = strrchr(argv[a+1], '.')) != NULL && |
| 253 |
> |
(ccp = strrchr(argv[a+1], '.')) > argv[a+1] && |
| 254 |
|
!strcasecmp(ccp+1, "XML")) |
| 255 |
|
Tmat = cm_loadBTDF(argv[a+1]); |
| 256 |
|
else |
| 270 |
|
} |
| 271 |
|
/* prepare output stream */ |
| 272 |
|
if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) { |
| 273 |
< |
sprintf(fnbuf, ofspec, 1); |
| 273 |
> |
sprintf(fnbuf, ofspec, 0); |
| 274 |
|
ofspec = fnbuf; |
| 275 |
|
} |
| 276 |
|
if (ofspec != NULL && !hasNumberFormat(ofspec)) { |
| 281 |
|
} |
| 282 |
|
ofspec = NULL; /* only need to open once */ |
| 283 |
|
} |
| 284 |
< |
if (hasNumberFormat(argv[a])) { /* generating image(s) */ |
| 284 |
> |
if (hasNumberFormat(argv[a])) { /* loading image vector(s) */ |
| 285 |
|
if (outfmt != DTrgbe) { |
| 286 |
|
error(WARNING, "changing output type to -oc"); |
| 287 |
|
outfmt = DTrgbe; |
| 323 |
|
} |
| 324 |
|
else if (!sum_images(argv[a], cmtx, ofp)) |
| 325 |
|
return(1); |
| 326 |
< |
} else { /* generating vector/matrix */ |
| 326 |
> |
} else { /* loading view matrix */ |
| 327 |
|
CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader); |
| 328 |
|
CMATRIX *rmtx = cm_multiply(Vmat, cmtx); |
| 329 |
|
cm_free(Vmat); |
| 351 |
|
if ((outfmt != DTrgbe) & (outfmt != DTxyze)) { |
| 352 |
|
fprintf(ofp, "NROWS=%d\n", rvec->nrows); |
| 353 |
|
fprintf(ofp, "NCOLS=%d\n", rvec->ncols); |
| 354 |
< |
fputs("NCOMP=3\n", ofp); |
| 354 |
> |
fputncomp(3, ofp); |
| 355 |
|
} |
| 356 |
|
if ((outfmt == DTfloat) | (outfmt == DTdouble)) |
| 357 |
|
fputendian(ofp); |
| 383 |
|
if ((outfmt != DTrgbe) & (outfmt != DTxyze)) { |
| 384 |
|
fprintf(ofp, "NROWS=%d\n", rmtx->nrows); |
| 385 |
|
fprintf(ofp, "NCOLS=%d\n", rmtx->ncols); |
| 386 |
< |
fputs("NCOMP=3\n", ofp); |
| 386 |
> |
fputncomp(3, ofp); |
| 387 |
|
} |
| 388 |
|
if ((outfmt == DTfloat) | (outfmt == DTdouble)) |
| 389 |
|
fputendian(ofp); |