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 |
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"float", "ascii", "double" |
214 |
|
cm_load(const char *inspec, int nrows, int ncols, int dtype) |
215 |
|
{ |
216 |
|
const int ROWINC = 2048; |
215 |
– |
FILE *fp = stdin; |
217 |
|
int swap = 0; |
218 |
+ |
FILE *fp; |
219 |
|
COLOR scale; |
220 |
|
CMATRIX *cm; |
221 |
|
|
222 |
|
if (!inspec) |
223 |
< |
inspec = "<stdin>"; |
224 |
< |
else if (inspec[0] == '!') { |
223 |
> |
inspec = stdin_name; |
224 |
> |
else if (!*inspec) |
225 |
> |
return(NULL); |
226 |
> |
if (inspec == stdin_name) { /* reading from stdin? */ |
227 |
> |
fp = stdin; |
228 |
> |
} else if (inspec[0] == '!') { |
229 |
|
fp = popen(inspec+1, "r"); |
230 |
|
if (!fp) { |
231 |
|
sprintf(errmsg, "cannot start command '%s'", inspec); |
240 |
|
#endif |
241 |
|
if (dtype != DTascii) |
242 |
|
SET_FILE_BINARY(fp); /* doesn't really work */ |
243 |
< |
if (!dtype | !ncols) { /* expecting header? */ |
243 |
> |
if (!dtype | !nrows | !ncols) { /* expecting header? */ |
244 |
|
char *err = cm_getheader(&dtype, &nrows, &ncols, &swap, scale, fp); |
245 |
|
if (err) |
246 |
|
error(USER, err); |
247 |
|
} |
248 |
< |
if (ncols <= 0 && !fscnresolu(&ncols, &nrows, fp)) |
249 |
< |
error(USER, "unspecified number of columns"); |
248 |
> |
if (!nrows | !ncols && !fscnresolu(&ncols, &nrows, fp)) |
249 |
> |
error(USER, "unspecified matrix size"); |
250 |
|
switch (dtype) { |
251 |
|
case DTascii: |
252 |
|
case DTfloat: |
315 |
|
} |
316 |
|
} else { /* read binary file */ |
317 |
|
if (sizeof(COLOR) == cm_elem_size[dtype]) { |
318 |
< |
int nread = 0; |
318 |
> |
size_t nread = 0; |
319 |
|
do { /* read all we can */ |
320 |
|
nread += getbinary(cm->cmem + 3*nread, |
321 |
|
sizeof(COLOR), |
322 |
< |
cm->nrows*cm->ncols - nread, |
322 |
> |
(size_t)cm->nrows*cm->ncols - nread, |
323 |
|
fp); |
324 |
|
if (nrows <= 0) { /* unknown length */ |
325 |
< |
if (nread == cm->nrows*cm->ncols) |
325 |
> |
if (nread == (size_t)cm->nrows*cm->ncols) |
326 |
|
/* need more space? */ |
327 |
|
cm = cm_resize(cm, cm->nrows+ROWINC); |
328 |
|
else if (nread && !(nread % cm->ncols)) |
330 |
|
cm = cm_resize(cm, nread/cm->ncols); |
331 |
|
else /* ended mid-row */ |
332 |
|
goto EOFerror; |
333 |
< |
} else if (nread < cm->nrows*cm->ncols) |
333 |
> |
} else if (nread < (size_t)cm->nrows*cm->ncols) |
334 |
|
goto EOFerror; |
335 |
< |
} while (nread < cm->nrows*cm->ncols); |
335 |
> |
} while (nread < (size_t)cm->nrows*cm->ncols); |
336 |
|
|
337 |
|
if (swap) { |
338 |
|
if (sizeof(COLORV) == 4) |
339 |
|
swap32((char *)cm->cmem, |
340 |
< |
3*cm->nrows*cm->ncols); |
340 |
> |
3*(size_t)cm->nrows*cm->ncols); |
341 |
|
else /* sizeof(COLORV) == 8 */ |
342 |
|
swap64((char *)cm->cmem, |
343 |
< |
3*cm->nrows*cm->ncols); |
343 |
> |
3*(size_t)cm->nrows*cm->ncols); |
344 |
|
} |
345 |
|
} else if (dtype == DTdouble) { |
346 |
|
double dc[3]; /* load from double */ |
347 |
|
COLORV *cvp = cm->cmem; |
348 |
< |
int n = nrows*ncols; |
348 |
> |
size_t n = (size_t)nrows*ncols; |
349 |
|
|
350 |
|
if (n <= 0) |
351 |
|
goto not_handled; |
359 |
|
} else /* dtype == DTfloat */ { |
360 |
|
float fc[3]; /* load from float */ |
361 |
|
COLORV *cvp = cm->cmem; |
362 |
< |
int n = nrows*ncols; |
362 |
> |
size_t n = (size_t)nrows*ncols; |
363 |
|
|
364 |
|
if (n <= 0) |
365 |
|
goto not_handled; |