| 15 |
|
#include "paths.h" |
| 16 |
|
#include "resolu.h" |
| 17 |
|
|
| 18 |
+ |
const char stdin_name[] = "<stdin>"; |
| 19 |
+ |
|
| 20 |
|
const char *cm_fmt_id[] = { |
| 21 |
|
"unknown", COLRFMT, CIEFMT, |
| 22 |
|
"float", "ascii", "double" |
| 177 |
|
|
| 178 |
|
/* Allocate and load image data into matrix */ |
| 179 |
|
static CMATRIX * |
| 180 |
< |
cm_load_rgbe(FILE *fp, int nrows, int ncols, COLOR scale) |
| 180 |
> |
cm_load_rgbe(FILE *fp, int nrows, int ncols) |
| 181 |
|
{ |
| 180 |
– |
int doscale; |
| 182 |
|
CMATRIX *cm; |
| 183 |
|
COLORV *mp; |
| 184 |
|
/* header already loaded */ |
| 185 |
|
cm = cm_alloc(nrows, ncols); |
| 186 |
|
if (!cm) |
| 187 |
|
return(NULL); |
| 187 |
– |
doscale = (scale[0] < .99) | (scale[0] > 1.01) | |
| 188 |
– |
(scale[1] < .99) | (scale[1] > 1.01) | |
| 189 |
– |
(scale[2] < .99) | (scale[2] > 1.01) ; |
| 188 |
|
mp = cm->cmem; |
| 189 |
|
while (nrows--) { |
| 190 |
|
if (freadscan((COLOR *)mp, ncols, fp) < 0) { |
| 192 |
|
cm_free(cm); |
| 193 |
|
return(NULL); |
| 194 |
|
} |
| 195 |
< |
if (doscale) { |
| 198 |
< |
int i = ncols; |
| 199 |
< |
while (i--) { |
| 200 |
< |
*mp++ *= scale[0]; |
| 201 |
< |
*mp++ *= scale[1]; |
| 202 |
< |
*mp++ *= scale[2]; |
| 203 |
< |
} |
| 204 |
< |
} else |
| 205 |
< |
mp += 3*ncols; |
| 195 |
> |
mp += 3*ncols; |
| 196 |
|
} /* caller closes stream */ |
| 197 |
|
return(cm); |
| 198 |
|
} |
| 202 |
|
cm_load(const char *inspec, int nrows, int ncols, int dtype) |
| 203 |
|
{ |
| 204 |
|
const int ROWINC = 2048; |
| 205 |
< |
FILE *fp = stdin; |
| 205 |
> |
int dimsOK = (dtype == DTascii) | (nrows > 0) && ncols; |
| 206 |
|
int swap = 0; |
| 207 |
+ |
FILE *fp; |
| 208 |
|
COLOR scale; |
| 209 |
|
CMATRIX *cm; |
| 210 |
|
|
| 211 |
|
if (!inspec) |
| 212 |
< |
inspec = "<stdin>"; |
| 213 |
< |
else if (inspec[0] == '!') { |
| 212 |
> |
inspec = stdin_name; |
| 213 |
> |
else if (!*inspec) |
| 214 |
> |
return(NULL); |
| 215 |
> |
if (inspec == stdin_name) { /* reading from stdin? */ |
| 216 |
> |
fp = stdin; |
| 217 |
> |
} else if (inspec[0] == '!') { |
| 218 |
|
fp = popen(inspec+1, "r"); |
| 219 |
|
if (!fp) { |
| 220 |
|
sprintf(errmsg, "cannot start command '%s'", inspec); |
| 229 |
|
#endif |
| 230 |
|
if (dtype != DTascii) |
| 231 |
|
SET_FILE_BINARY(fp); /* doesn't really work */ |
| 232 |
< |
if (!dtype | !ncols) { /* expecting header? */ |
| 232 |
> |
if (!dtype | !dimsOK) { /* expecting header? */ |
| 233 |
|
char *err = cm_getheader(&dtype, &nrows, &ncols, &swap, scale, fp); |
| 234 |
|
if (err) |
| 235 |
|
error(USER, err); |
| 236 |
+ |
dimsOK = ncols > 0 && ( nrows > 0 || |
| 237 |
+ |
(dtype != DTrgbe) & (dtype != DTxyze) ); |
| 238 |
|
} |
| 239 |
< |
if (ncols <= 0 && !fscnresolu(&ncols, &nrows, fp)) |
| 240 |
< |
error(USER, "unspecified number of columns"); |
| 239 |
> |
if (!dimsOK && !fscnresolu(&ncols, &nrows, fp)) |
| 240 |
> |
error(USER, "unspecified matrix size"); |
| 241 |
|
switch (dtype) { |
| 242 |
|
case DTascii: |
| 243 |
|
case DTfloat: |
| 245 |
|
break; |
| 246 |
|
case DTrgbe: |
| 247 |
|
case DTxyze: |
| 248 |
< |
cm = cm_load_rgbe(fp, nrows, ncols, scale); |
| 248 |
> |
cm = cm_load_rgbe(fp, nrows, ncols); |
| 249 |
|
goto cleanup; |
| 250 |
|
default: |
| 251 |
|
error(USER, "unexpected data type in cm_load()"); |
| 382 |
|
else |
| 383 |
|
funlockfile(fp); |
| 384 |
|
#endif |
| 385 |
+ |
if ((scale[0] < .99) | (scale[0] > 1.01) | |
| 386 |
+ |
(scale[1] < .99) | (scale[1] > 1.01) | |
| 387 |
+ |
(scale[2] < .99) | (scale[2] > 1.01)) { |
| 388 |
+ |
size_t n = (size_t)ncols*nrows; |
| 389 |
+ |
COLORV *mp = cm->cmem; |
| 390 |
+ |
while (n--) { /* apply exposure scaling */ |
| 391 |
+ |
*mp++ *= scale[0]; |
| 392 |
+ |
*mp++ *= scale[1]; |
| 393 |
+ |
*mp++ *= scale[2]; |
| 394 |
+ |
} |
| 395 |
+ |
} |
| 396 |
|
return(cm); |
| 397 |
|
EOFerror: |
| 398 |
|
sprintf(errmsg, "unexpected EOF reading %s", inspec); |
