| 12 |
|
#include "fvect.h" |
| 13 |
|
#include "view.h" |
| 14 |
|
|
| 15 |
– |
#define MAXWORD 64 /* maximum word (number) length */ |
| 16 |
– |
|
| 15 |
|
char *progname; /* global argv[0] */ |
| 16 |
|
|
| 17 |
|
VIEW vw = STDVIEW; |
| 98 |
|
/* check if fseek() useful */ |
| 99 |
|
if (skip_len > skip_thresh && |
| 100 |
|
fseek(fp, (rmin*width + cmin)*elsiz, SEEK_CUR) == 0) { |
| 101 |
+ |
off_t curpos; |
| 102 |
|
buf = (char *)malloc(ncols*elsiz); |
| 103 |
|
if (!buf) |
| 104 |
|
goto memerr; |
| 105 |
+ |
#ifdef NON_POSIX |
| 106 |
|
for (y = nrows; y-- > 0; ) { |
| 107 |
|
if (getbinary(buf, elsiz, ncols, fp) != ncols) |
| 108 |
|
goto readerr; |
| 114 |
|
return(0); |
| 115 |
|
} |
| 116 |
|
} |
| 117 |
< |
free(buf); /* success! */ |
| 118 |
< |
return(1); |
| 117 |
> |
#else |
| 118 |
> |
curpos = ftello(fp); |
| 119 |
> |
for (y = nrows; y-- > 0; curpos += width*elsiz) { |
| 120 |
> |
if (pread(fileno(fp), 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) |
| 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[]) |
| 312 |
|
fputs(": illegal crop\n", stderr); |
| 313 |
|
return(1); |
| 314 |
|
} |
| 315 |
< |
printargs(5, 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[0] = rmin/(double)res.xr; |
| 275 |
< |
p0[1] = cmin/(double)res.yr; |
| 276 |
< |
p1[0] = (rmin+nrows)/(double)res.xr; |
| 277 |
< |
p1[1] = (cmin+ncols)/(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); |
| 364 |
|
return(1); |
| 365 |
|
} |
| 366 |
|
if (!(asiz < 0 ? colr_copyf(fp) : |
| 367 |
< |
!asiz ? ascii_copyf(fp) : binary_copyf(fp, asiz))) |
| 367 |
> |
asiz ? binary_copyf(fp, asiz) : ascii_copyf(fp))) |
| 368 |
|
return(1); |
| 369 |
|
/* need to consume the rest? */ |
| 370 |
|
if (fp == stdin && rmin+nrows < numscans(&res) && |
