| 12 |
|
#include "fvect.h" |
| 13 |
|
#include "view.h" |
| 14 |
|
|
| 15 |
– |
#define MAXWORD 64 /* maximum word (number) length */ |
| 16 |
– |
|
| 17 |
– |
char *progname; /* global argv[0] */ |
| 18 |
– |
|
| 15 |
|
VIEW vw = STDVIEW; |
| 16 |
|
int gotvw = 0; |
| 17 |
|
char fmt[MAXFMTLEN] = "ascii"; /* assumed when unspecified */ |
| 25 |
|
{ |
| 26 |
|
if (formatval(fmt, s)) |
| 27 |
|
return(0); |
| 28 |
< |
if (!strncmp(s, "NCOMP=", 6)) { |
| 29 |
< |
ncomp = atoi(s+6); |
| 28 |
> |
if (isncomp(s)) { |
| 29 |
> |
ncomp = ncompval(s); |
| 30 |
|
return(-(ncomp <= 0)); |
| 31 |
|
} |
| 32 |
|
if (!strncmp(s, "NROWS=", 6)) { |
| 95 |
|
int y; |
| 96 |
|
/* check if fseek() useful */ |
| 97 |
|
if (skip_len > skip_thresh && |
| 98 |
< |
fseek(fp, (rmin*width + cmin)*elsiz, SEEK_CUR) == 0) { |
| 98 |
> |
fseek(fp, ((long)rmin*width + cmin)*elsiz, SEEK_CUR) == 0) { |
| 99 |
> |
int fd; |
| 100 |
> |
off_t curpos; |
| 101 |
|
buf = (char *)malloc(ncols*elsiz); |
| 102 |
|
if (!buf) |
| 103 |
|
goto memerr; |
| 104 |
+ |
#ifdef NON_POSIX |
| 105 |
|
for (y = nrows; y-- > 0; ) { |
| 106 |
|
if (getbinary(buf, elsiz, ncols, fp) != ncols) |
| 107 |
|
goto readerr; |
| 113 |
|
return(0); |
| 114 |
|
} |
| 115 |
|
} |
| 116 |
< |
free(buf); /* success! */ |
| 117 |
< |
return(1); |
| 116 |
> |
#else |
| 117 |
> |
fd = fileno(fp); |
| 118 |
> |
curpos = ftello(fp); |
| 119 |
> |
for (y = nrows; y-- > 0; curpos += width*elsiz) { |
| 120 |
> |
if (pread(fd, buf, ncols*elsiz, |
| 121 |
> |
curpos) != ncols*elsiz) |
| 122 |
> |
goto readerr; |
| 123 |
> |
if (putbinary(buf, elsiz, ncols, stdout) != ncols) |
| 124 |
> |
goto writerr; |
| 125 |
> |
} |
| 126 |
> |
#endif |
| 127 |
> |
free(buf); |
| 128 |
> |
if (fflush(stdout) == EOF) |
| 129 |
> |
goto writerr; |
| 130 |
> |
return(1); /* success! */ |
| 131 |
|
} /* else need to read it all... */ |
| 132 |
|
buf = (char *)malloc(width*elsiz); |
| 133 |
|
if (!buf) |
| 134 |
|
goto memerr; |
| 135 |
|
/* skip rows as requested */ |
| 136 |
|
if (skip_len > skip_thresh || |
| 137 |
< |
(rmin && fseek(fp, rmin*width*elsiz, SEEK_CUR) < 0)) |
| 137 |
> |
(rmin && fseek(fp, (long)rmin*width*elsiz, SEEK_CUR) < 0)) |
| 138 |
|
for (y = 0; y < rmin; y++) |
| 139 |
|
if (getbinary(buf, elsiz, width, fp) != width) |
| 140 |
|
goto readerr; |
| 163 |
|
|
| 164 |
|
/* Read (and copy) specified number of white-space-separated words */ |
| 165 |
|
static int |
| 166 |
< |
readwords(FILE *finp, int nwords, FILE *fout) |
| 166 |
> |
readwords(FILE *finp, long nwords, FILE *fout) |
| 167 |
|
{ |
| 168 |
|
while (nwords-- > 0) { |
| 169 |
|
int c; |
| 192 |
|
SET_FILE_TEXT(fp); /* started as binary */ |
| 193 |
|
SET_FILE_TEXT(stdout); |
| 194 |
|
/* skip rows as requested */ |
| 195 |
< |
if (readwords(fp, rmin*width*ncomp, NULL) < 0) |
| 195 |
> |
if (readwords(fp, (long)rmin*width*ncomp, NULL) < 0) |
| 196 |
|
goto io_err; |
| 197 |
|
for (y = 0; y < nrows; y++) { /* copy part */ |
| 198 |
|
if (readwords(fp, cmin*ncomp, NULL) < 0) |
| 211 |
|
return(0); |
| 212 |
|
} |
| 213 |
|
|
| 214 |
+ |
/* Adjust (crop) our view */ |
| 215 |
+ |
static int |
| 216 |
+ |
adjust_view(void) |
| 217 |
+ |
{ |
| 218 |
+ |
double p0[2], p1[2]; |
| 219 |
+ |
const char *err; |
| 220 |
+ |
|
| 221 |
+ |
if (res.rt & YMAJOR) { |
| 222 |
+ |
p0[0] = cmin/(double)res.xr; |
| 223 |
+ |
p0[1] = rmin/(double)res.yr; |
| 224 |
+ |
p1[0] = (cmin+ncols)/(double)res.xr; |
| 225 |
+ |
p1[1] = (rmin+nrows)/(double)res.yr; |
| 226 |
+ |
} else { |
| 227 |
+ |
p0[0] = rmin/(double)res.xr; |
| 228 |
+ |
p0[1] = cmin/(double)res.yr; |
| 229 |
+ |
p1[0] = (rmin+nrows)/(double)res.xr; |
| 230 |
+ |
p1[1] = (cmin+ncols)/(double)res.yr; |
| 231 |
+ |
} |
| 232 |
+ |
if (res.rt & XDECR) { |
| 233 |
+ |
p0[0] = 1. - p0[0]; |
| 234 |
+ |
p1[0] = 1. - p1[0]; |
| 235 |
+ |
} |
| 236 |
+ |
if (res.rt & YDECR) { |
| 237 |
+ |
p0[1] = 1. - p0[1]; |
| 238 |
+ |
p1[1] = 1. - p1[1]; |
| 239 |
+ |
} |
| 240 |
+ |
err = cropview(&vw, p0[0], p0[1], p1[0], p1[1]); |
| 241 |
+ |
|
| 242 |
+ |
if (!err) |
| 243 |
+ |
return(1); /* success! */ |
| 244 |
+ |
|
| 245 |
+ |
fputs(progname, stderr); |
| 246 |
+ |
fputs(": view error - ", stderr); |
| 247 |
+ |
fputs(err, stderr); |
| 248 |
+ |
fputc('\n', stderr); |
| 249 |
+ |
return(0); /* something went wrong */ |
| 250 |
+ |
} |
| 251 |
+ |
|
| 252 |
+ |
|
| 253 |
|
/* Main routine -- load header and call processor */ |
| 254 |
|
int |
| 255 |
|
main(int argc, char *argv[]) |
| 257 |
|
FILE *fp = stdin; |
| 258 |
|
int asiz = 0; |
| 259 |
|
int gotdims; |
| 260 |
< |
|
| 261 |
< |
progname = argv[0]; |
| 260 |
> |
/* set global progname */ |
| 261 |
> |
fixargv0(argv[0]); |
| 262 |
|
/* get input and output */ |
| 263 |
|
if ((argc < 5) | (argc > 7)) |
| 264 |
|
goto usage; |
| 269 |
|
cmin = atoi(argv[2]); |
| 270 |
|
nrows = atoi(argv[3]); |
| 271 |
|
ncols = atoi(argv[4]); |
| 272 |
< |
if ((rmin < 0) | (cmin < 0) | (nrows < 0) | (ncols < 0)) |
| 272 |
> |
if ((rmin < 0) | (cmin < 0)) |
| 273 |
|
goto usage; |
| 274 |
|
if (argc <= 5) |
| 275 |
|
SET_FILE_BINARY(fp); |
| 301 |
|
fputs(": missing input dimensions\n", stderr); |
| 302 |
|
return(1); |
| 303 |
|
} |
| 304 |
< |
if (!nrows) |
| 305 |
< |
nrows = numscans(&res) - rmin; |
| 306 |
< |
if (!ncols) |
| 307 |
< |
ncols = scanlen(&res) - cmin; |
| 304 |
> |
if (nrows <= 0 ) |
| 305 |
> |
nrows += numscans(&res) - rmin; |
| 306 |
> |
if (ncols <= 0) |
| 307 |
> |
ncols += scanlen(&res) - cmin; |
| 308 |
|
if ((nrows <= 0) | (ncols <= 0) | |
| 309 |
|
(rmin+nrows > numscans(&res)) | |
| 310 |
|
(cmin+ncols > scanlen(&res))) { |
| 312 |
|
fputs(": illegal crop\n", stderr); |
| 313 |
|
return(1); |
| 314 |
|
} |
| 315 |
< |
printargs(argc, argv, stdout); |
| 316 |
< |
if (gotvw) { /* adjust view? */ |
| 317 |
< |
double p0[2], p1[2]; |
| 318 |
< |
const char *err; |
| 319 |
< |
if (res.rt & YMAJOR) { |
| 269 |
< |
p0[0] = cmin/(double)res.xr; |
| 270 |
< |
p0[1] = rmin/(double)res.yr; |
| 271 |
< |
p1[0] = (cmin+ncols)/(double)res.xr; |
| 272 |
< |
p1[1] = (rmin+nrows)/(double)res.yr; |
| 273 |
< |
} else { |
| 274 |
< |
p0[1] = cmin/(double)res.xr; |
| 275 |
< |
p0[0] = rmin/(double)res.yr; |
| 276 |
< |
p1[1] = (cmin+ncols)/(double)res.xr; |
| 277 |
< |
p1[0] = (rmin+nrows)/(double)res.yr; |
| 278 |
< |
} |
| 279 |
< |
if (res.rt & XDECR) { |
| 280 |
< |
p0[0] = 1. - p0[0]; |
| 281 |
< |
p1[0] = 1. - p1[0]; |
| 282 |
< |
} |
| 283 |
< |
if (res.rt & YDECR) { |
| 284 |
< |
p0[1] = 1. - p0[1]; |
| 285 |
< |
p1[1] = 1. - p1[1]; |
| 286 |
< |
} |
| 287 |
< |
err = cropview(&vw, p0[0], p0[1], p1[0], p1[1]); |
| 288 |
< |
if (err) { |
| 289 |
< |
fputs(progname, stderr); |
| 290 |
< |
fputs(": view error - ", stderr); |
| 291 |
< |
fputs(err, stderr); |
| 292 |
< |
fputc('\n', stderr); |
| 293 |
< |
return(1); |
| 294 |
< |
} else { |
| 295 |
< |
fputs(VIEWSTR, stdout); |
| 296 |
< |
fprintview(&vw, stdout); |
| 297 |
< |
fputc('\n', stdout); |
| 298 |
< |
} |
| 315 |
> |
printargs(5, argv, stdout); /* add to header */ |
| 316 |
> |
if (gotvw && adjust_view()) { |
| 317 |
> |
fputs(VIEWSTR, stdout); /* write adjusted view */ |
| 318 |
> |
fprintview(&vw, stdout); |
| 319 |
> |
fputc('\n', stdout); |
| 320 |
|
} |
| 321 |
< |
if (gotdims) |
| 321 |
> |
if (gotdims) /* dimensions + format */ |
| 322 |
|
printf("NROWS=%d\nNCOLS=%d\n", nrows, ncols); |
| 323 |
|
if (ncomp) |
| 324 |
< |
printf("NCOMP=%d\n", ncomp); |
| 324 |
> |
fputncomp(ncomp, stdout); |
| 325 |
|
fputformat(fmt, stdout); /* will align bytes if it can */ |
| 326 |
|
fputc('\n', stdout); /* end of new header */ |
| 327 |
|
if (!gotdims) { /* add resolution string? */ |
| 351 |
|
asiz = -1; |
| 352 |
|
if (!ncomp) ncomp = 3; |
| 353 |
|
else ncomp *= (ncomp == 3); |
| 354 |
+ |
} else if (!strcmp(fmt, SPECFMT)) { |
| 355 |
+ |
asiz = ncomp+1; |
| 356 |
+ |
ncomp = 1; /* XXX assumes uncompressed */ |
| 357 |
|
} else if (strcasecmp(fmt, "ascii")) { |
| 358 |
|
fputs(progname, stderr); |
| 359 |
|
fputs(": unsupported format - ", stderr); |
| 367 |
|
return(1); |
| 368 |
|
} |
| 369 |
|
if (!(asiz < 0 ? colr_copyf(fp) : |
| 370 |
< |
!asiz ? ascii_copyf(fp) : binary_copyf(fp, asiz))) |
| 370 |
> |
asiz ? binary_copyf(fp, asiz) : ascii_copyf(fp))) |
| 371 |
|
return(1); |
| 372 |
|
/* need to consume the rest? */ |
| 373 |
|
if (fp == stdin && rmin+nrows < numscans(&res) && |