8 |
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*/ |
9 |
|
|
10 |
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#include <ctype.h> |
11 |
+ |
#include "platform.h" |
12 |
|
#include "standard.h" |
13 |
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#include "cmatrix.h" |
14 |
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#include "platform.h" |
15 |
+ |
#include "paths.h" |
16 |
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#include "resolu.h" |
17 |
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|
18 |
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const char *cm_fmt_id[] = { |
19 |
< |
"unknown", "ascii", "float", "double", |
20 |
< |
COLRFMT, CIEFMT |
19 |
> |
"unknown", "ascii", COLRFMT, CIEFMT, |
20 |
> |
"float", "double" |
21 |
|
}; |
22 |
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|
23 |
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const int cm_elem_size[] = { |
145 |
|
return(NULL); |
146 |
|
} |
147 |
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|
148 |
< |
/* Allocate and load a matrix from the given file (or stdin if NULL) */ |
148 |
> |
/* Allocate and load a matrix from the given input (or stdin if NULL) */ |
149 |
|
CMATRIX * |
150 |
< |
cm_load(const char *fname, int nrows, int ncols, int dtype) |
150 |
> |
cm_load(const char *inspec, int nrows, int ncols, int dtype) |
151 |
|
{ |
152 |
< |
FILE *fp = stdin; |
153 |
< |
CMATRIX *cm; |
152 |
> |
const int ROWINC = 2048; |
153 |
> |
FILE *fp = stdin; |
154 |
> |
CMATRIX *cm; |
155 |
|
|
156 |
< |
if (fname == NULL) |
157 |
< |
fname = "<stdin>"; |
158 |
< |
else if ((fp = fopen(fname, "r")) == NULL) { |
159 |
< |
sprintf(errmsg, "cannot open file '%s'", fname); |
156 |
> |
if (inspec == NULL) |
157 |
> |
inspec = "<stdin>"; |
158 |
> |
else if (inspec[0] == '!') { |
159 |
> |
fp = popen(inspec+1, "r"); |
160 |
> |
if (fp == NULL) { |
161 |
> |
sprintf(errmsg, "cannot start command '%s'", inspec); |
162 |
> |
error(SYSTEM, errmsg); |
163 |
> |
} |
164 |
> |
} else if ((fp = fopen(inspec, "r")) == NULL) { |
165 |
> |
sprintf(errmsg, "cannot open file '%s'", inspec); |
166 |
|
error(SYSTEM, errmsg); |
167 |
|
} |
168 |
|
#ifdef getc_unlocked |
187 |
|
} |
188 |
|
if (nrows <= 0) { /* don't know length? */ |
189 |
|
int guessrows = 147; /* usually big enough */ |
190 |
< |
if ((dtype != DTascii) & (fp != stdin)) { |
190 |
> |
if ((dtype != DTascii) & (fp != stdin) & (inspec[0] != '!')) { |
191 |
|
long startpos = ftell(fp); |
192 |
|
if (fseek(fp, 0L, SEEK_END) == 0) { |
193 |
|
long endpos = ftell(fp); |
197 |
|
if ((endpos - startpos) % (ncols*elemsiz)) { |
198 |
|
sprintf(errmsg, |
199 |
|
"improper length for binary file '%s'", |
200 |
< |
fname); |
200 |
> |
inspec); |
201 |
|
error(USER, errmsg); |
202 |
|
} |
203 |
|
guessrows = (endpos - startpos)/(ncols*elemsiz); |
204 |
|
if (fseek(fp, startpos, SEEK_SET) < 0) { |
205 |
|
sprintf(errmsg, |
206 |
|
"fseek() error on file '%s'", |
207 |
< |
fname); |
207 |
> |
inspec); |
208 |
|
error(SYSTEM, errmsg); |
209 |
|
} |
210 |
|
nrows = guessrows; /* we're confident */ |
220 |
|
int r, c; |
221 |
|
for (r = 0; r < maxrow; r++) { |
222 |
|
if (r >= cm->nrows) /* need more space? */ |
223 |
< |
cm = cm_resize(cm, 2*cm->nrows); |
223 |
> |
cm = cm_resize(cm, cm->nrows+ROWINC); |
224 |
|
for (c = 0; c < ncols; c++) { |
225 |
|
COLORV *cv = cm_lval(cm,r,c); |
226 |
< |
if (fscanf(fp, COLSPEC, cv, cv+1, cv+2) != 3) |
226 |
> |
if (fscanf(fp, COLSPEC, cv, cv+1, cv+2) != 3) { |
227 |
|
if ((nrows <= 0) & (r > 0) & !c) { |
228 |
|
cm = cm_resize(cm, maxrow=r); |
229 |
|
break; |
230 |
|
} else |
231 |
|
goto EOFerror; |
232 |
+ |
} |
233 |
|
} |
234 |
|
} |
235 |
|
while ((c = getc(fp)) != EOF) |
236 |
|
if (!isspace(c)) { |
237 |
|
sprintf(errmsg, |
238 |
< |
"unexpected data at end of ascii file %s", |
239 |
< |
fname); |
238 |
> |
"unexpected data at end of ascii input '%s'", |
239 |
> |
inspec); |
240 |
|
error(WARNING, errmsg); |
241 |
|
break; |
242 |
|
} |
251 |
|
if (nrows <= 0) { /* unknown length */ |
252 |
|
if (nread == cm->nrows*cm->ncols) |
253 |
|
/* need more space? */ |
254 |
< |
cm = cm_resize(cm, 2*cm->nrows); |
254 |
> |
cm = cm_resize(cm, cm->nrows+ROWINC); |
255 |
|
else if (nread && !(nread % cm->ncols)) |
256 |
|
/* seem to be done */ |
257 |
|
cm = cm_resize(cm, nread/cm->ncols); |
290 |
|
} |
291 |
|
if (fgetc(fp) != EOF) { |
292 |
|
sprintf(errmsg, |
293 |
< |
"unexpected data at end of binary file %s", |
294 |
< |
fname); |
293 |
> |
"unexpected data at end of binary input '%s'", |
294 |
> |
inspec); |
295 |
|
error(WARNING, errmsg); |
296 |
|
} |
297 |
|
} |
298 |
< |
if (fp != stdin) |
299 |
< |
fclose(fp); |
298 |
> |
if (fp != stdin) { |
299 |
> |
if (inspec[0] != '!') |
300 |
> |
fclose(fp); |
301 |
> |
else if (pclose(fp)) { |
302 |
> |
sprintf(errmsg, "error running command '%s'", inspec); |
303 |
> |
error(WARNING, errmsg); |
304 |
> |
} |
305 |
> |
} |
306 |
|
#ifdef getc_unlocked |
307 |
|
else |
308 |
|
funlockfile(fp); |
309 |
|
#endif |
310 |
|
return(cm); |
311 |
|
EOFerror: |
312 |
< |
sprintf(errmsg, "unexpected EOF reading %s", fname); |
312 |
> |
sprintf(errmsg, "unexpected EOF reading %s", inspec); |
313 |
|
error(USER, errmsg); |
314 |
|
not_handled: |
315 |
|
error(INTERNAL, "unhandled data size or length in cm_load()"); |