| 1 |
greg |
1.1 |
#ifndef lint
|
| 2 |
greg |
1.2 |
static const char RCSid[] = "$Id: rcrop.c,v 1.1 2022/03/15 00:25:50 greg Exp $";
|
| 3 |
greg |
1.1 |
#endif
|
| 4 |
|
|
/*
|
| 5 |
|
|
* rcrop.c - crop a Radiance picture or matrix data
|
| 6 |
|
|
*/
|
| 7 |
|
|
|
| 8 |
|
|
#include <ctype.h>
|
| 9 |
|
|
#include "rtio.h"
|
| 10 |
|
|
#include "platform.h"
|
| 11 |
|
|
#include "color.h"
|
| 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 |
|
|
|
| 19 |
|
|
VIEW vw = STDVIEW;
|
| 20 |
|
|
int gotvw = 0;
|
| 21 |
|
|
char fmt[MAXFMTLEN] = "Unknown";
|
| 22 |
|
|
int ncomp = 0;
|
| 23 |
|
|
RESOLU res;
|
| 24 |
|
|
int rmin, cmin, nrows, ncols;
|
| 25 |
|
|
|
| 26 |
|
|
/* Process header line, copying to stdout when appropriate */
|
| 27 |
|
|
static int
|
| 28 |
|
|
headline(char *s, void *p)
|
| 29 |
|
|
{
|
| 30 |
|
|
if (formatval(fmt, s))
|
| 31 |
|
|
return(0);
|
| 32 |
|
|
if (!strncmp(s, "NCOMP=", 6)) {
|
| 33 |
|
|
ncomp = atoi(s+6);
|
| 34 |
|
|
return(-(ncomp <= 0));
|
| 35 |
|
|
}
|
| 36 |
|
|
if (!strncmp(s, "NROWS=", 6)) {
|
| 37 |
|
|
res.rt = PIXSTANDARD;
|
| 38 |
|
|
res.yr = atoi(s+6);
|
| 39 |
|
|
return(-(res.yr <= 0));
|
| 40 |
|
|
}
|
| 41 |
|
|
if (!strncmp(s, "NCOLS=", 6)) {
|
| 42 |
|
|
res.rt = PIXSTANDARD;
|
| 43 |
|
|
res.xr = atoi(s+6);
|
| 44 |
|
|
return(-(res.xr <= 0));
|
| 45 |
|
|
}
|
| 46 |
|
|
if (isview(s)) {
|
| 47 |
|
|
gotvw += sscanview(&vw, s);
|
| 48 |
|
|
return(0);
|
| 49 |
|
|
}
|
| 50 |
|
|
fputs(s, stdout); /* copy other header info. */
|
| 51 |
|
|
return(0);
|
| 52 |
|
|
}
|
| 53 |
|
|
|
| 54 |
|
|
/* Copy routine for COLR data */
|
| 55 |
|
|
static int
|
| 56 |
|
|
colr_copyf(FILE *fp)
|
| 57 |
|
|
{
|
| 58 |
|
|
const int width = scanlen(&res);
|
| 59 |
|
|
COLR *scan = (COLR *)malloc(sizeof(COLR)*width);
|
| 60 |
|
|
int y;
|
| 61 |
|
|
|
| 62 |
|
|
if (!scan) {
|
| 63 |
|
|
fputs(progname, stderr);
|
| 64 |
|
|
fputs(": out of memory!\n", stderr);
|
| 65 |
|
|
return(0);
|
| 66 |
|
|
}
|
| 67 |
|
|
for (y = 0; y < rmin; y++) /* initial skip */
|
| 68 |
|
|
if (freadcolrs(scan, width, fp) < 0)
|
| 69 |
|
|
goto readerr;
|
| 70 |
|
|
/* scanlines to copy */
|
| 71 |
|
|
for (y = 0; y < nrows; y++) {
|
| 72 |
|
|
if (freadcolrs(scan, width, fp) < 0)
|
| 73 |
|
|
goto readerr;
|
| 74 |
|
|
if (fwritecolrs(scan+cmin, ncols, stdout) < 0)
|
| 75 |
|
|
goto writerr;
|
| 76 |
|
|
}
|
| 77 |
|
|
free(scan);
|
| 78 |
|
|
if (fflush(stdout) == 0)
|
| 79 |
|
|
return(1);
|
| 80 |
|
|
writerr:
|
| 81 |
|
|
fputs(progname, stderr);
|
| 82 |
|
|
fputs(": error writing scanline\n", stderr);
|
| 83 |
|
|
return(0);
|
| 84 |
|
|
readerr:
|
| 85 |
|
|
fputs(progname, stderr);
|
| 86 |
|
|
fputs(": error reading scanline\n", stderr);
|
| 87 |
|
|
return(0);
|
| 88 |
|
|
}
|
| 89 |
|
|
|
| 90 |
|
|
/* Copy routine for binary data (asize = sizeof(type)) */
|
| 91 |
|
|
static int
|
| 92 |
|
|
binary_copyf(FILE *fp, int asize)
|
| 93 |
|
|
{
|
| 94 |
greg |
1.2 |
const int skip_thresh = 1024;
|
| 95 |
greg |
1.1 |
const size_t elsiz = asize*ncomp;
|
| 96 |
|
|
const int width = scanlen(&res);
|
| 97 |
greg |
1.2 |
const long skip_len = (width-ncols)*elsiz;
|
| 98 |
|
|
char *buf;
|
| 99 |
greg |
1.1 |
int y;
|
| 100 |
greg |
1.2 |
/* check if fseek() useful */
|
| 101 |
|
|
if (skip_len > skip_thresh &&
|
| 102 |
|
|
fseek(fp, (rmin*width + cmin)*elsiz, SEEK_CUR) == 0) {
|
| 103 |
|
|
buf = (char *)malloc(ncols*elsiz);
|
| 104 |
|
|
if (!buf)
|
| 105 |
|
|
goto memerr;
|
| 106 |
|
|
for (y = nrows; y-- > 0; ) {
|
| 107 |
|
|
if (getbinary(buf, elsiz, ncols, fp) != ncols)
|
| 108 |
|
|
goto readerr;
|
| 109 |
|
|
if (putbinary(buf, elsiz, ncols, stdout) != ncols)
|
| 110 |
|
|
goto writerr;
|
| 111 |
|
|
if (y && fseek(fp, skip_len, SEEK_CUR) < 0) {
|
| 112 |
|
|
fputs(progname, stderr);
|
| 113 |
|
|
fputs(": unexpected seek error on input\n", stderr);
|
| 114 |
|
|
return(0);
|
| 115 |
|
|
}
|
| 116 |
|
|
}
|
| 117 |
|
|
free(buf); /* success! */
|
| 118 |
|
|
return(1);
|
| 119 |
|
|
} /* else need to read it all... */
|
| 120 |
|
|
buf = (char *)malloc(width*elsiz);
|
| 121 |
|
|
if (!buf)
|
| 122 |
|
|
goto memerr;
|
| 123 |
greg |
1.1 |
/* skip rows as requested */
|
| 124 |
greg |
1.2 |
if (skip_len > skip_thresh ||
|
| 125 |
|
|
(rmin && fseek(fp, rmin*width*elsiz, SEEK_CUR) < 0))
|
| 126 |
greg |
1.1 |
for (y = 0; y < rmin; y++)
|
| 127 |
|
|
if (getbinary(buf, elsiz, width, fp) != width)
|
| 128 |
|
|
goto readerr;
|
| 129 |
|
|
for (y = 0; y < nrows; y++) { /* copy portion */
|
| 130 |
|
|
if (getbinary(buf, elsiz, width, fp) != width)
|
| 131 |
|
|
goto readerr;
|
| 132 |
|
|
if (putbinary(buf+cmin*elsiz, elsiz, ncols, stdout) != ncols)
|
| 133 |
|
|
goto writerr;
|
| 134 |
|
|
}
|
| 135 |
|
|
free(buf); /* we're done */
|
| 136 |
|
|
if (fflush(stdout) == 0)
|
| 137 |
|
|
return(1);
|
| 138 |
|
|
writerr:
|
| 139 |
|
|
fputs(progname, stderr);
|
| 140 |
|
|
fputs(": error writing binary data\n", stderr);
|
| 141 |
|
|
return(0);
|
| 142 |
|
|
readerr:
|
| 143 |
|
|
fputs(progname, stderr);
|
| 144 |
|
|
fputs(": error reading binary data\n", stderr);
|
| 145 |
|
|
return(0);
|
| 146 |
greg |
1.2 |
memerr:
|
| 147 |
|
|
fputs(progname, stderr);
|
| 148 |
|
|
fputs(": out of memory!\n", stderr);
|
| 149 |
|
|
return(0);
|
| 150 |
greg |
1.1 |
}
|
| 151 |
|
|
|
| 152 |
|
|
/* Read (and copy) specified number of white-space-separated words */
|
| 153 |
|
|
static int
|
| 154 |
|
|
readwords(FILE *finp, int nwords, FILE *fout)
|
| 155 |
|
|
{
|
| 156 |
|
|
while (nwords-- > 0) {
|
| 157 |
|
|
int c;
|
| 158 |
|
|
do {
|
| 159 |
|
|
c = getc(finp);
|
| 160 |
|
|
} while (isspace(c));
|
| 161 |
|
|
if (c == EOF)
|
| 162 |
|
|
return(-1);
|
| 163 |
|
|
if (fout && fputc(' ', fout) == EOF)
|
| 164 |
|
|
return(-1);
|
| 165 |
|
|
do {
|
| 166 |
|
|
if (fout)
|
| 167 |
|
|
putc(c, fout);
|
| 168 |
|
|
} while ((c = getc(finp)) != EOF && !isspace(c));
|
| 169 |
|
|
}
|
| 170 |
|
|
return(0);
|
| 171 |
|
|
}
|
| 172 |
|
|
|
| 173 |
|
|
/* Copy routine for ascii data */
|
| 174 |
|
|
static int
|
| 175 |
|
|
ascii_copyf(FILE *fp)
|
| 176 |
|
|
{
|
| 177 |
|
|
const int width = scanlen(&res);
|
| 178 |
|
|
int x, y;
|
| 179 |
|
|
|
| 180 |
|
|
SET_FILE_TEXT(fp); /* started as binary */
|
| 181 |
|
|
SET_FILE_TEXT(stdout);
|
| 182 |
|
|
/* skip rows as requested */
|
| 183 |
|
|
if (readwords(fp, rmin*width*ncomp, NULL) < 0)
|
| 184 |
|
|
goto io_err;
|
| 185 |
|
|
for (y = 0; y < nrows; y++) { /* copy part */
|
| 186 |
|
|
if (readwords(fp, cmin*ncomp, NULL) < 0)
|
| 187 |
|
|
goto io_err;
|
| 188 |
|
|
if (readwords(fp, ncols*ncomp, stdout) < 0)
|
| 189 |
|
|
goto io_err;
|
| 190 |
|
|
fputc('\n', stdout); /* newline per row */
|
| 191 |
|
|
if (readwords(fp, (width-ncols-cmin)*ncomp, NULL) < 0)
|
| 192 |
|
|
goto io_err;
|
| 193 |
|
|
}
|
| 194 |
|
|
if (fflush(stdout) == 0)
|
| 195 |
|
|
return(1);
|
| 196 |
|
|
io_err:
|
| 197 |
|
|
fputs(progname, stderr);
|
| 198 |
|
|
fputs(": error copying ascii data\n", stderr);
|
| 199 |
|
|
return(0);
|
| 200 |
|
|
}
|
| 201 |
|
|
|
| 202 |
|
|
/* Main routine -- load header and call processor */
|
| 203 |
|
|
int
|
| 204 |
|
|
main(int argc, char *argv[])
|
| 205 |
|
|
{
|
| 206 |
|
|
FILE *fp = stdin;
|
| 207 |
|
|
int asiz = 0;
|
| 208 |
|
|
int gotdims;
|
| 209 |
|
|
|
| 210 |
|
|
progname = argv[0];
|
| 211 |
|
|
/* get input and output */
|
| 212 |
|
|
if ((argc < 5) | (argc > 7))
|
| 213 |
|
|
goto usage;
|
| 214 |
|
|
if (!isint(argv[1]) | !isint(argv[2]) |
|
| 215 |
|
|
!isint(argv[3]) | !isint(argv[4]))
|
| 216 |
|
|
goto usage;
|
| 217 |
|
|
rmin = atoi(argv[1]);
|
| 218 |
|
|
cmin = atoi(argv[2]);
|
| 219 |
|
|
nrows = atoi(argv[3]);
|
| 220 |
|
|
ncols = atoi(argv[4]);
|
| 221 |
|
|
if ((rmin < 0) | (cmin < 0) | (nrows < 0) | (ncols < 0))
|
| 222 |
|
|
goto usage;
|
| 223 |
|
|
if (argc <= 5)
|
| 224 |
|
|
SET_FILE_BINARY(fp);
|
| 225 |
|
|
else if (!(fp = fopen(argv[5], "rb"))) {
|
| 226 |
|
|
fputs(argv[5], stderr);
|
| 227 |
|
|
fputs(": cannot open for reading\n", stderr);
|
| 228 |
|
|
return(1);
|
| 229 |
|
|
}
|
| 230 |
|
|
if (argc <= 6)
|
| 231 |
|
|
SET_FILE_BINARY(stdout);
|
| 232 |
|
|
else if (!freopen(argv[6], "wb", stdout)) {
|
| 233 |
|
|
fputs(argv[6], stderr);
|
| 234 |
|
|
fputs(": cannot open for writing\n", stderr);
|
| 235 |
|
|
return(1);
|
| 236 |
|
|
}
|
| 237 |
|
|
/* process information header */
|
| 238 |
|
|
if (getheader(fp, headline, NULL) < 0) {
|
| 239 |
|
|
fputs(progname, stderr);
|
| 240 |
|
|
fputs(": bad input header\n", stderr);
|
| 241 |
|
|
return(1);
|
| 242 |
|
|
}
|
| 243 |
|
|
gotdims = (res.rt == PIXSTANDARD) & (res.xr > 0) & (res.yr > 0);
|
| 244 |
|
|
if (!gotdims && !fgetsresolu(&res, fp)) {
|
| 245 |
|
|
fputs(progname, stderr);
|
| 246 |
|
|
fputs(": missing input dimensions\n", stderr);
|
| 247 |
|
|
return(1);
|
| 248 |
|
|
}
|
| 249 |
|
|
if (!nrows)
|
| 250 |
|
|
nrows = numscans(&res) - rmin;
|
| 251 |
|
|
if (!ncols)
|
| 252 |
|
|
ncols = scanlen(&res) - cmin;
|
| 253 |
|
|
if ((nrows <= 0) | (ncols <= 0) |
|
| 254 |
|
|
(rmin+nrows > numscans(&res)) |
|
| 255 |
|
|
(cmin+ncols > scanlen(&res))) {
|
| 256 |
|
|
fputs(progname, stderr);
|
| 257 |
|
|
fputs(": illegal crop\n", stderr);
|
| 258 |
|
|
return(1);
|
| 259 |
|
|
}
|
| 260 |
|
|
printargs(argc, argv, stdout);
|
| 261 |
|
|
if (gotvw) {
|
| 262 |
|
|
double p0[2], p1[2];
|
| 263 |
|
|
const char *err;
|
| 264 |
|
|
if (res.rt & YMAJOR) {
|
| 265 |
|
|
p0[0] = cmin/(double)res.xr;
|
| 266 |
|
|
p0[1] = rmin/(double)res.yr;
|
| 267 |
|
|
p1[0] = (cmin+ncols)/(double)res.xr;
|
| 268 |
|
|
p1[1] = (rmin+nrows)/(double)res.yr;
|
| 269 |
|
|
} else {
|
| 270 |
|
|
p0[1] = cmin/(double)res.xr;
|
| 271 |
|
|
p0[0] = rmin/(double)res.yr;
|
| 272 |
|
|
p1[1] = (cmin+ncols)/(double)res.xr;
|
| 273 |
|
|
p1[0] = (rmin+nrows)/(double)res.yr;
|
| 274 |
|
|
}
|
| 275 |
|
|
if (res.rt & XDECR) {
|
| 276 |
|
|
p0[0] = 1. - p0[0];
|
| 277 |
|
|
p1[0] = 1. - p1[0];
|
| 278 |
|
|
}
|
| 279 |
|
|
if (res.rt & YDECR) {
|
| 280 |
|
|
p0[1] = 1. - p0[1];
|
| 281 |
|
|
p1[1] = 1. - p1[1];
|
| 282 |
|
|
}
|
| 283 |
|
|
err = cropview(&vw, p0[0], p0[1], p1[0], p1[1]);
|
| 284 |
|
|
if (err) {
|
| 285 |
|
|
fputs(progname, stderr);
|
| 286 |
|
|
fputs(": view error - ", stderr);
|
| 287 |
|
|
fputs(err, stderr);
|
| 288 |
|
|
fputc('\n', stderr);
|
| 289 |
|
|
return(1);
|
| 290 |
|
|
}
|
| 291 |
|
|
fputs(VIEWSTR, stdout);
|
| 292 |
|
|
fprintview(&vw, stdout);
|
| 293 |
|
|
fputc('\n', stdout);
|
| 294 |
|
|
}
|
| 295 |
|
|
if (gotdims)
|
| 296 |
|
|
printf("NROWS=%d\nNCOLS=%d\n", nrows, ncols);
|
| 297 |
|
|
if (ncomp)
|
| 298 |
|
|
printf("NCOMP=%d\n", ncomp);
|
| 299 |
|
|
fputformat(fmt, stdout); /* will align bytes if it can */
|
| 300 |
|
|
fputc('\n', stdout); /* end of new header */
|
| 301 |
|
|
if (!gotdims) { /* add resolution string? */
|
| 302 |
|
|
RESOLU newres;
|
| 303 |
|
|
if (res.rt & YMAJOR) {
|
| 304 |
|
|
newres.xr = ncols;
|
| 305 |
|
|
newres.yr = nrows;
|
| 306 |
|
|
} else {
|
| 307 |
|
|
newres.xr = nrows;
|
| 308 |
|
|
newres.yr = ncols;
|
| 309 |
|
|
}
|
| 310 |
|
|
newres.rt = res.rt;
|
| 311 |
|
|
fputsresolu(&newres, stdout);
|
| 312 |
|
|
}
|
| 313 |
|
|
/* call appropriate processor */
|
| 314 |
|
|
if (!strcmp(fmt, "float")) {
|
| 315 |
|
|
asiz = sizeof(float);
|
| 316 |
|
|
} else if (!strcmp(fmt, "double")) {
|
| 317 |
|
|
asiz = sizeof(double);
|
| 318 |
|
|
} else if (globmatch(PICFMT, fmt)) {
|
| 319 |
|
|
asiz = -1;
|
| 320 |
|
|
if (!ncomp) ncomp = 3;
|
| 321 |
|
|
} else if (strcasecmp(fmt, "ascii")) {
|
| 322 |
|
|
fputs(progname, stderr);
|
| 323 |
|
|
fputs(": unsupported format - ", stderr);
|
| 324 |
|
|
fputs(fmt, stderr);
|
| 325 |
|
|
fputc('\n', stderr);
|
| 326 |
|
|
return(1);
|
| 327 |
|
|
}
|
| 328 |
|
|
if (ncomp <= 0) {
|
| 329 |
|
|
fputs(progname, stderr);
|
| 330 |
|
|
fputs(": illegal number of components\n", stderr);
|
| 331 |
|
|
return(1);
|
| 332 |
|
|
}
|
| 333 |
|
|
if (!(asiz < 0 ? colr_copyf(fp) :
|
| 334 |
|
|
!asiz ? ascii_copyf(fp) : binary_copyf(fp, asiz)))
|
| 335 |
|
|
return(1);
|
| 336 |
|
|
return(0);
|
| 337 |
|
|
usage:
|
| 338 |
|
|
fputs("Usage: ", stderr);
|
| 339 |
|
|
fputs(progname, stderr);
|
| 340 |
|
|
fputs(" row0 col0 nrows ncols [input [output]]\n", stderr);
|
| 341 |
|
|
return(1);
|
| 342 |
|
|
}
|
