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/* Copyright (c) 1992 Regents of the University of California */ |
| 2 |
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|
| 1 |
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#ifndef lint |
| 2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
| 3 |
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#endif |
| 6 |
– |
|
| 4 |
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/* |
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* Generate sections of a picture. |
| 6 |
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*/ |
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|
| 8 |
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|
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+ |
#include <stdio.h> |
| 10 |
+ |
#include <signal.h> |
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+ |
#include <sys/types.h> |
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+ |
|
| 13 |
+ |
#include "platform.h" |
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+ |
#ifndef NON_POSIX /* XXX need abstraction for process management */ |
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+ |
#include <sys/wait.h> |
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+ |
#endif |
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+ |
|
| 18 |
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#include "standard.h" |
| 12 |
– |
#include <fcntl.h> |
| 19 |
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#include "color.h" |
| 20 |
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#include "view.h" |
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< |
#include "resolu.h" |
| 21 |
> |
#include "rtprocess.h" |
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|
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+ |
#ifndef F_SETLKW |
| 24 |
+ |
|
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+ |
int |
| 26 |
+ |
main( |
| 27 |
+ |
int argc, |
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+ |
char *argv[] |
| 29 |
+ |
) |
| 30 |
+ |
{ |
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+ |
fprintf(stderr, "%s: no NFS lock manager on this machine\n", argv[0]); |
| 32 |
+ |
exit(1); |
| 33 |
+ |
} |
| 34 |
+ |
|
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+ |
#else |
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|
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#ifndef NFS |
| 38 |
+ |
#define NFS 1 |
| 39 |
+ |
#endif |
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+ |
/* set the following to 0 to forgo forking */ |
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+ |
#ifndef MAXFORK |
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+ |
#if NFS |
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+ |
#define MAXFORK 3 /* allotment of duped processes */ |
| 44 |
+ |
#else |
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#define MAXFORK 0 |
| 46 |
+ |
#endif |
| 47 |
+ |
#endif |
| 48 |
+ |
/* protection from SYSV signals(!) */ |
| 49 |
+ |
#if defined(sgi) |
| 50 |
+ |
#define guard_io() sighold(SIGALRM) |
| 51 |
+ |
#define unguard() sigrelse(SIGALRM) |
| 52 |
+ |
#endif |
| 53 |
+ |
#ifndef guard_io |
| 54 |
+ |
#define guard_io() |
| 55 |
+ |
#define unguard() |
| 56 |
+ |
#endif |
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+ |
|
| 58 |
+ |
extern char *strerror(); |
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+ |
|
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/* rpict command */ |
| 61 |
< |
char *rpargv[128] = {"rpict", "-S", "1", "-x", "512", "-y", "512", }; |
| 62 |
< |
int rpargc = 7; |
| 20 |
< |
int rpd[3]; |
| 61 |
> |
char *rpargv[128] = {"rpict", "-S", "1"}; |
| 62 |
> |
int rpargc = 3; |
| 63 |
|
FILE *torp, *fromrp; |
| 64 |
< |
COLR *scanline; |
| 64 |
> |
COLR *pbuf; |
| 65 |
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/* our view parameters */ |
| 66 |
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VIEW ourview = STDVIEW; |
| 67 |
< |
double pixaspect = 0.0; |
| 68 |
< |
int hres = 512, vres = 512, hmult = 2, vmult = 2; |
| 67 |
> |
double pixaspect = 1.0; |
| 68 |
> |
int hres = 1024, vres = 1024, hmult = 4, vmult = 4; |
| 69 |
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/* output file */ |
| 70 |
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char *outfile = NULL; |
| 71 |
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int outfd; |
| 72 |
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long scanorig; |
| 73 |
+ |
FILE *syncfp = NULL; /* synchronization file pointer */ |
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+ |
int synclst = F_UNLCK; /* synchronization file lock status */ |
| 75 |
+ |
int nforked = 0; |
| 76 |
|
|
| 77 |
+ |
#define sflock(t) if ((t)!=synclst) dolock(fileno(syncfp),synclst=t) |
| 78 |
+ |
|
| 79 |
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char *progname; |
| 80 |
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int verbose = 0; |
| 81 |
+ |
unsigned timelim = 0; |
| 82 |
+ |
int rvrlim = -1; |
| 83 |
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|
| 84 |
< |
extern long lseek(), ftell(); |
| 84 |
> |
int gotalrm = 0; |
| 85 |
> |
void onalrm(int i) { gotalrm++; } |
| 86 |
|
|
| 87 |
+ |
static void dolock(int fd, int ltyp); |
| 88 |
+ |
static void init(int ac, char **av); |
| 89 |
+ |
static int nextpiece(int *xp, int *yp); |
| 90 |
+ |
static int rvrpiece(int *xp, int *yp); |
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+ |
static int cleanup(int rstat); |
| 92 |
+ |
static void rpiece(void); |
| 93 |
+ |
static int putpiece(int xpos, int ypos); |
| 94 |
+ |
static void filerr(char *t); |
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|
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< |
main(argc, argv) |
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< |
int argc; |
| 98 |
< |
char *argv[]; |
| 96 |
> |
|
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> |
int |
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> |
main( |
| 99 |
> |
int argc, |
| 100 |
> |
char *argv[] |
| 101 |
> |
) |
| 102 |
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{ |
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register int i, rval; |
| 104 |
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|
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progname = argv[0]; |
| 106 |
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for (i = 1; i < argc; i++) { |
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+ |
/* expand arguments */ |
| 108 |
+ |
while ((rval = expandarg(&argc, &argv, i)) > 0) |
| 109 |
+ |
; |
| 110 |
+ |
if (rval < 0) { |
| 111 |
+ |
fprintf(stderr, "%s: cannot expand '%s'\n", |
| 112 |
+ |
argv[0], argv[i]); |
| 113 |
+ |
exit(1); |
| 114 |
+ |
} |
| 115 |
|
if (argv[i][0] == '-') |
| 116 |
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switch (argv[i][1]) { |
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|
case 'v': |
| 136 |
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} |
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break; |
| 138 |
|
case 'p': /* pixel aspect ratio? */ |
| 139 |
< |
if (argv[i][2] == 'a' && !argv[i][3]) |
| 140 |
< |
pixaspect = atof(argv[i+1]); |
| 141 |
< |
break; |
| 142 |
< |
case 'x': /* piece x resolution */ |
| 143 |
< |
if (!argv[i][2]) |
| 144 |
< |
hres = atoi(argv[i+1]); |
| 145 |
< |
break; |
| 146 |
< |
case 'y': /* piece y resolution */ |
| 147 |
< |
if (!argv[i][2]) |
| 148 |
< |
vres = atoi(argv[i+1]); |
| 149 |
< |
break; |
| 139 |
> |
if (argv[i][2] == 'm') { |
| 140 |
> |
fprintf(stderr, "%s: -pm unsupported\n", |
| 141 |
> |
argv[0]); |
| 142 |
> |
++i; |
| 143 |
> |
continue; |
| 144 |
> |
} |
| 145 |
> |
if (argv[i][2] != 'a' || argv[i][3]) |
| 146 |
> |
break; |
| 147 |
> |
pixaspect = atof(argv[++i]); |
| 148 |
> |
continue; |
| 149 |
> |
case 'T': /* time limit (hours) */ |
| 150 |
> |
if (argv[i][2]) |
| 151 |
> |
break; |
| 152 |
> |
timelim = atof(argv[++i])*3600. + .5; |
| 153 |
> |
continue; |
| 154 |
> |
case 'x': /* overall x resolution */ |
| 155 |
> |
if (argv[i][2]) |
| 156 |
> |
break; |
| 157 |
> |
hres = atoi(argv[++i]); |
| 158 |
> |
continue; |
| 159 |
> |
case 'y': /* overall y resolution */ |
| 160 |
> |
if (argv[i][2]) |
| 161 |
> |
break; |
| 162 |
> |
vres = atoi(argv[++i]); |
| 163 |
> |
continue; |
| 164 |
|
case 'X': /* horizontal multiplier */ |
| 165 |
|
if (argv[i][2]) |
| 166 |
|
break; |
| 171 |
|
break; |
| 172 |
|
vmult = atoi(argv[++i]); |
| 173 |
|
continue; |
| 174 |
+ |
case 'R': /* recover */ |
| 175 |
+ |
if (argv[i][2]) |
| 176 |
+ |
break; |
| 177 |
+ |
rvrlim = 0; |
| 178 |
+ |
/* fall through */ |
| 179 |
+ |
case 'F': /* syncronization file */ |
| 180 |
+ |
if (argv[i][2]) |
| 181 |
+ |
break; |
| 182 |
+ |
if ((syncfp = |
| 183 |
+ |
fdopen(open(argv[++i],O_RDWR|O_CREAT,0666),"r+")) == NULL) { |
| 184 |
+ |
fprintf(stderr, "%s: cannot open\n", |
| 185 |
+ |
argv[i]); |
| 186 |
+ |
exit(1); |
| 187 |
+ |
} |
| 188 |
+ |
continue; |
| 189 |
+ |
case 'z': /* z-file ist verbotten */ |
| 190 |
+ |
fprintf(stderr, "%s: -z option not allowed\n", |
| 191 |
+ |
argv[0]); |
| 192 |
+ |
exit(1); |
| 193 |
|
case 'o': /* output file */ |
| 194 |
|
if (argv[i][2]) |
| 195 |
|
break; |
| 196 |
|
outfile = argv[++i]; |
| 197 |
|
continue; |
| 198 |
< |
} |
| 198 |
> |
} else if (i >= argc-1) |
| 199 |
> |
break; |
| 200 |
|
rpargv[rpargc++] = argv[i]; |
| 201 |
|
} |
| 202 |
< |
rpargv[rpargc] = NULL; |
| 202 |
> |
if (i >= argc) { |
| 203 |
> |
fprintf(stderr, "%s: missing octree argument\n", argv[0]); |
| 204 |
> |
exit(1); |
| 205 |
> |
} |
| 206 |
|
if (outfile == NULL) { |
| 207 |
|
fprintf(stderr, "%s: missing output file\n", argv[0]); |
| 208 |
|
exit(1); |
| 209 |
|
} |
| 210 |
|
init(argc, argv); |
| 211 |
|
rpiece(); |
| 212 |
< |
rval = cleanup(); |
| 107 |
< |
exit(rval); |
| 212 |
> |
exit(cleanup(0)); |
| 213 |
|
} |
| 214 |
|
|
| 215 |
|
|
| 216 |
< |
init(ac, av) /* set up output file and start rpict */ |
| 217 |
< |
int ac; |
| 218 |
< |
char **av; |
| 216 |
> |
static void |
| 217 |
> |
dolock( /* lock or unlock a file */ |
| 218 |
> |
int fd, |
| 219 |
> |
int ltyp |
| 220 |
> |
) |
| 221 |
|
{ |
| 222 |
+ |
static struct flock fls; /* static so initialized to zeroes */ |
| 223 |
+ |
|
| 224 |
+ |
fls.l_type = ltyp; |
| 225 |
+ |
if (fcntl(fd, F_SETLKW, &fls) < 0) { |
| 226 |
+ |
fprintf(stderr, "%s: cannot lock/unlock file: %s\n", |
| 227 |
+ |
progname, strerror(errno)); |
| 228 |
+ |
exit(1); |
| 229 |
+ |
} |
| 230 |
+ |
} |
| 231 |
+ |
|
| 232 |
+ |
|
| 233 |
+ |
static void |
| 234 |
+ |
init( /* set up output file and start rpict */ |
| 235 |
+ |
int ac, |
| 236 |
+ |
char **av |
| 237 |
+ |
) |
| 238 |
+ |
{ |
| 239 |
+ |
static char hrbuf[16], vrbuf[16]; |
| 240 |
|
extern char VersionID[]; |
| 241 |
|
char *err; |
| 242 |
|
FILE *fp; |
| 243 |
|
int hr, vr; |
| 244 |
+ |
SUBPROC rpd; /* since we don't close_process(), this can be local */ |
| 245 |
|
/* set up view */ |
| 246 |
|
if ((err = setview(&ourview)) != NULL) { |
| 247 |
|
fprintf(stderr, "%s: %s\n", progname, err); |
| 248 |
|
exit(1); |
| 249 |
|
} |
| 250 |
+ |
if (syncfp != NULL) { |
| 251 |
+ |
sflock(F_RDLCK); |
| 252 |
+ |
fscanf(syncfp, "%d %d", &hmult, &vmult); |
| 253 |
+ |
sflock(F_UNLCK); |
| 254 |
+ |
} |
| 255 |
+ |
/* compute piece size */ |
| 256 |
+ |
hres /= hmult; |
| 257 |
+ |
vres /= vmult; |
| 258 |
+ |
if (hres <= 0 || vres <= 0) { |
| 259 |
+ |
fprintf(stderr, "%s: illegal resolution/subdivision\n", progname); |
| 260 |
+ |
exit(1); |
| 261 |
+ |
} |
| 262 |
|
normaspect(viewaspect(&ourview)*hmult/vmult, &pixaspect, &hres, &vres); |
| 263 |
+ |
sprintf(hrbuf, "%d", hres); |
| 264 |
+ |
rpargv[rpargc++] = "-x"; rpargv[rpargc++] = hrbuf; |
| 265 |
+ |
sprintf(vrbuf, "%d", vres); |
| 266 |
+ |
rpargv[rpargc++] = "-y"; rpargv[rpargc++] = vrbuf; |
| 267 |
+ |
rpargv[rpargc++] = "-pa"; rpargv[rpargc++] = "0"; |
| 268 |
+ |
rpargv[rpargc++] = av[ac-1]; |
| 269 |
+ |
rpargv[rpargc] = NULL; |
| 270 |
|
/* open output file */ |
| 271 |
|
if ((outfd = open(outfile, O_WRONLY|O_CREAT|O_EXCL, 0666)) >= 0) { |
| 272 |
+ |
dolock(outfd, F_WRLCK); |
| 273 |
|
if ((fp = fdopen(dup(outfd), "w")) == NULL) |
| 274 |
|
goto filerr; |
| 275 |
< |
printargs(ac, av, fp); /* write header */ |
| 275 |
> |
newheader("RADIANCE", fp); /* create header */ |
| 276 |
> |
printargs(ac, av, fp); |
| 277 |
|
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
| 278 |
|
fputs(VIEWSTR, fp); |
| 279 |
|
fprintview(&ourview, fp); |
| 284 |
|
putc('\n', fp); |
| 285 |
|
fprtresolu(hres*hmult, vres*vmult, fp); |
| 286 |
|
} else if ((outfd = open(outfile, O_RDWR)) >= 0) { |
| 287 |
< |
sleep(30); /* wait for header */ |
| 287 |
> |
dolock(outfd, F_RDLCK); |
| 288 |
|
if ((fp = fdopen(dup(outfd), "r+")) == NULL) |
| 289 |
|
goto filerr; |
| 290 |
< |
getheader(fp, NULL); /* skip header */ |
| 291 |
< |
if (fscnresolu(&hr, &vr, fp) < 0 || /* check resolution */ |
| 290 |
> |
getheader(fp, NULL, NULL); /* skip header */ |
| 291 |
> |
if (!fscnresolu(&hr, &vr, fp) || /* check resolution */ |
| 292 |
|
hr != hres*hmult || vr != vres*vmult) { |
| 293 |
< |
fprintf(stderr, "%s: picture resolution mismatch\n", |
| 294 |
< |
outfile); |
| 293 |
> |
fprintf(stderr, "%s: resolution mismatch on file \"%s\"\n", |
| 294 |
> |
progname, outfile); |
| 295 |
|
exit(1); |
| 296 |
|
} |
| 297 |
|
} else { |
| 298 |
< |
fprintf(stderr, "%s: cannot open\n", outfile); |
| 298 |
> |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
| 299 |
> |
progname, outfile); |
| 300 |
|
exit(1); |
| 301 |
|
} |
| 302 |
|
scanorig = ftell(fp); /* record position of first scanline */ |
| 303 |
|
if (fclose(fp) == -1) /* done with stream i/o */ |
| 304 |
|
goto filerr; |
| 305 |
+ |
dolock(outfd, F_UNLCK); |
| 306 |
|
/* start rpict process */ |
| 307 |
< |
if (open_process(rpd, rpargv) <= 0) { |
| 308 |
< |
fprintf(stderr, "%s: cannot start\n", rpargv[0]); |
| 307 |
> |
if (open_process(&rpd, rpargv) <= 0) { |
| 308 |
> |
fprintf(stderr, "%s: cannot start %s\n", progname, rpargv[0]); |
| 309 |
|
exit(1); |
| 310 |
|
} |
| 311 |
< |
if ((fromrp = fdopen(rpd[0], "r")) == NULL || |
| 312 |
< |
(torp = fdopen(rpd[1], "w")) == NULL) { |
| 311 |
> |
if ((fromrp = fdopen(rpd.r, "r")) == NULL || |
| 312 |
> |
(torp = fdopen(rpd.w, "w")) == NULL) { |
| 313 |
|
fprintf(stderr, "%s: cannot open stream to %s\n", |
| 314 |
|
progname, rpargv[0]); |
| 315 |
|
exit(1); |
| 316 |
|
} |
| 317 |
< |
if ((scanline = (COLR *)malloc(hres*sizeof(COLR))) == NULL) { |
| 317 |
> |
if ((pbuf = (COLR *)bmalloc(hres*vres*sizeof(COLR))) == NULL) { |
| 318 |
|
fprintf(stderr, "%s: out of memory\n", progname); |
| 319 |
|
exit(1); |
| 320 |
|
} |
| 321 |
+ |
signal(SIGALRM, onalrm); |
| 322 |
+ |
if (timelim) |
| 323 |
+ |
alarm(timelim); |
| 324 |
|
return; |
| 325 |
|
filerr: |
| 326 |
< |
fprintf(stderr, "%s: file i/o error\n", outfile); |
| 326 |
> |
fprintf(stderr, "%s: i/o error on file \"%s\"\n", progname, outfile); |
| 327 |
|
exit(1); |
| 328 |
|
} |
| 329 |
|
|
| 330 |
|
|
| 331 |
< |
int |
| 332 |
< |
cleanup() /* close rpict process and clean up */ |
| 331 |
> |
static int |
| 332 |
> |
nextpiece( /* get next piece assignment */ |
| 333 |
> |
int *xp, |
| 334 |
> |
int *yp |
| 335 |
> |
) |
| 336 |
|
{ |
| 337 |
< |
register int rpstat; |
| 337 |
> |
if (gotalrm) /* someone wants us to quit */ |
| 338 |
> |
return(0); |
| 339 |
> |
if (syncfp != NULL) { /* use sync file */ |
| 340 |
> |
/* |
| 341 |
> |
* So we don't necessarily have to lock and unlock the file |
| 342 |
> |
* multiple times (very slow), we establish an exclusive |
| 343 |
> |
* lock at the beginning on our synchronization file and |
| 344 |
> |
* maintain it in the subroutine rvrpiece(). |
| 345 |
> |
*/ |
| 346 |
> |
sflock(F_WRLCK); |
| 347 |
> |
fseek(syncfp, 0L, 0); /* read position */ |
| 348 |
> |
if (fscanf(syncfp, "%*d %*d %d %d", xp, yp) < 2) { |
| 349 |
> |
*xp = hmult-1; |
| 350 |
> |
*yp = vmult; |
| 351 |
> |
} |
| 352 |
> |
if (rvrlim == 0) /* initialize recovery limit */ |
| 353 |
> |
rvrlim = *xp*vmult + *yp; |
| 354 |
> |
if (rvrpiece(xp, yp)) { /* do stragglers first */ |
| 355 |
> |
sflock(F_UNLCK); |
| 356 |
> |
return(1); |
| 357 |
> |
} |
| 358 |
> |
if (--(*yp) < 0) { /* decrement position */ |
| 359 |
> |
*yp = vmult-1; |
| 360 |
> |
if (--(*xp) < 0) { /* all done */ |
| 361 |
> |
sflock(F_UNLCK); |
| 362 |
> |
return(0); |
| 363 |
> |
} |
| 364 |
> |
} |
| 365 |
> |
fseek(syncfp, 0L, 0); /* write new position */ |
| 366 |
> |
fprintf(syncfp, "%4d %4d\n%4d %4d\n\n", hmult, vmult, *xp, *yp); |
| 367 |
> |
fflush(syncfp); |
| 368 |
> |
sflock(F_UNLCK); /* release sync file */ |
| 369 |
> |
return(1); |
| 370 |
> |
} |
| 371 |
> |
return(scanf("%d %d", xp, yp) == 2); /* use stdin */ |
| 372 |
> |
} |
| 373 |
|
|
| 374 |
< |
free((char *)scanline); |
| 374 |
> |
|
| 375 |
> |
static int |
| 376 |
> |
rvrpiece( /* check for recoverable pieces */ |
| 377 |
> |
register int *xp, |
| 378 |
> |
register int *yp |
| 379 |
> |
) |
| 380 |
> |
{ |
| 381 |
> |
static char *pdone = NULL; /* which pieces are done */ |
| 382 |
> |
static long readpos = -1; /* how far we've read */ |
| 383 |
> |
register int i; |
| 384 |
> |
/* |
| 385 |
> |
* This routine is called by nextpiece() with an |
| 386 |
> |
* exclusive lock on syncfp and the file pointer at the |
| 387 |
> |
* appropriate position to read in the finished pieces. |
| 388 |
> |
*/ |
| 389 |
> |
if (rvrlim < 0) |
| 390 |
> |
return(0); /* only check if asked */ |
| 391 |
> |
if (pdone == NULL) /* first call */ |
| 392 |
> |
pdone = calloc(hmult*vmult, sizeof(char)); |
| 393 |
> |
if (pdone == NULL) { |
| 394 |
> |
fprintf(stderr, "%s: out of memory\n", progname); |
| 395 |
> |
exit(1); |
| 396 |
> |
} |
| 397 |
> |
if (readpos != -1) /* mark what's been done */ |
| 398 |
> |
fseek(syncfp, readpos, 0); |
| 399 |
> |
while (fscanf(syncfp, "%d %d", xp, yp) == 2) |
| 400 |
> |
pdone[*xp*vmult+*yp] = 1; |
| 401 |
> |
if (!feof(syncfp)) { |
| 402 |
> |
fprintf(stderr, "%s: format error in sync file\n", progname); |
| 403 |
> |
exit(1); |
| 404 |
> |
} |
| 405 |
> |
readpos = ftell(syncfp); |
| 406 |
> |
i = hmult*vmult; /* find an unaccounted for piece */ |
| 407 |
> |
while (i-- > rvrlim) |
| 408 |
> |
if (!pdone[i]) { |
| 409 |
> |
*xp = i / vmult; |
| 410 |
> |
*yp = i % vmult; |
| 411 |
> |
pdone[i] = 1; /* consider it done */ |
| 412 |
> |
return(1); |
| 413 |
> |
} |
| 414 |
> |
rvrlim = -1; /* nothing left to recover */ |
| 415 |
> |
free(pdone); |
| 416 |
> |
pdone = NULL; |
| 417 |
> |
return(0); |
| 418 |
> |
} |
| 419 |
> |
|
| 420 |
> |
|
| 421 |
> |
static int |
| 422 |
> |
cleanup( /* close rpict process and clean up */ |
| 423 |
> |
int rstat |
| 424 |
> |
) |
| 425 |
> |
{ |
| 426 |
> |
int status; |
| 427 |
> |
|
| 428 |
> |
bfree((char *)pbuf, hres*vres*sizeof(COLR)); |
| 429 |
|
fclose(torp); |
| 430 |
|
fclose(fromrp); |
| 431 |
< |
rpstat = close_process(rpd); |
| 432 |
< |
if (rpstat == -1) |
| 433 |
< |
rpstat = 0; |
| 434 |
< |
return(rpstat); |
| 431 |
> |
while (wait(&status) != -1) |
| 432 |
> |
if (rstat == 0) |
| 433 |
> |
rstat = status>>8 & 0xff; |
| 434 |
> |
return(rstat); |
| 435 |
|
} |
| 436 |
|
|
| 437 |
|
|
| 438 |
< |
rpiece() /* render picture piece by piece */ |
| 438 |
> |
static void |
| 439 |
> |
rpiece(void) /* render picture piece by piece */ |
| 440 |
|
{ |
| 196 |
– |
extern char *gets(), *strcat(); |
| 441 |
|
VIEW pview; |
| 198 |
– |
char buf[48]; |
| 442 |
|
int xorg, yorg; |
| 443 |
< |
|
| 444 |
< |
while (gets(buf) != NULL) { |
| 445 |
< |
if (sscanf(buf, "%d %d", &xorg, &yorg) != 2) { |
| 446 |
< |
fprintf(stderr, "%s: input format error\n", progname); |
| 447 |
< |
exit(1); |
| 448 |
< |
} |
| 449 |
< |
copystruct(&pview, &ourview); /* compute view for piece */ |
| 450 |
< |
switch (ourview.type) { |
| 451 |
< |
case VT_PER: |
| 452 |
< |
pview.horiz = 2.*180./PI*atan( |
| 453 |
< |
tan(PI/180./2.*ourview.horiz)/hmult ); |
| 454 |
< |
pview.vert = 2.*180./PI*atan( |
| 455 |
< |
tan(PI/180./2.*ourview.vert)/vmult ); |
| 456 |
< |
break; |
| 457 |
< |
case VT_PAR: |
| 458 |
< |
case VT_ANG: |
| 459 |
< |
pview.horiz = ourview.horiz / hmult; |
| 460 |
< |
pview.vert = ourview.vert / vmult; |
| 461 |
< |
break; |
| 462 |
< |
case VT_HEM: |
| 463 |
< |
default: |
| 464 |
< |
fprintf(stderr, "%s: unknown view type '-vt%c'\n", |
| 465 |
< |
progname, ourview.type); |
| 466 |
< |
exit(1); |
| 467 |
< |
} |
| 468 |
< |
pview.hoff += xorg - 0.5*(hmult-1); |
| 469 |
< |
pview.voff += yorg - 0.5*(vmult-1); |
| 443 |
> |
/* compute view parameters */ |
| 444 |
> |
pview = ourview; |
| 445 |
> |
switch (ourview.type) { |
| 446 |
> |
case VT_PER: |
| 447 |
> |
pview.horiz = (2.*180./PI)*atan( |
| 448 |
> |
tan((PI/180./2.)*ourview.horiz)/hmult ); |
| 449 |
> |
pview.vert = (2.*180./PI)*atan( |
| 450 |
> |
tan((PI/180./2.)*ourview.vert)/vmult ); |
| 451 |
> |
break; |
| 452 |
> |
case VT_PAR: |
| 453 |
> |
case VT_ANG: |
| 454 |
> |
pview.horiz = ourview.horiz / hmult; |
| 455 |
> |
pview.vert = ourview.vert / vmult; |
| 456 |
> |
break; |
| 457 |
> |
case VT_CYL: |
| 458 |
> |
pview.horiz = ourview.horiz / hmult; |
| 459 |
> |
pview.vert = (2.*180./PI)*atan( |
| 460 |
> |
tan((PI/180./2.)*ourview.vert)/vmult ); |
| 461 |
> |
break; |
| 462 |
> |
case VT_HEM: |
| 463 |
> |
pview.horiz = (2.*180./PI)*asin( |
| 464 |
> |
sin((PI/180./2.)*ourview.horiz)/hmult ); |
| 465 |
> |
pview.vert = (2.*180./PI)*asin( |
| 466 |
> |
sin((PI/180./2.)*ourview.vert)/vmult ); |
| 467 |
> |
break; |
| 468 |
> |
case VT_PLS: |
| 469 |
> |
pview.horiz = sin((PI/180./2.)*ourview.horiz) / |
| 470 |
> |
(1.0 + cos((PI/180./2.)*ourview.horiz)) / hmult; |
| 471 |
> |
pview.horiz *= pview.horiz; |
| 472 |
> |
pview.horiz = (2.*180./PI)*acos((1. - pview.horiz) / |
| 473 |
> |
(1. + pview.horiz)); |
| 474 |
> |
pview.vert = sin((PI/180./2.)*ourview.vert) / |
| 475 |
> |
(1.0 + cos((PI/180./2.)*ourview.vert)) / vmult; |
| 476 |
> |
pview.vert *= pview.vert; |
| 477 |
> |
pview.vert = (2.*180./PI)*acos((1. - pview.vert) / |
| 478 |
> |
(1. + pview.vert)); |
| 479 |
> |
break; |
| 480 |
> |
default: |
| 481 |
> |
fprintf(stderr, "%s: unknown view type '-vt%c'\n", |
| 482 |
> |
progname, ourview.type); |
| 483 |
> |
exit(cleanup(1)); |
| 484 |
> |
} |
| 485 |
> |
/* render each piece */ |
| 486 |
> |
while (nextpiece(&xorg, &yorg)) { |
| 487 |
> |
pview.hoff = ourview.hoff*hmult + xorg - 0.5*(hmult-1); |
| 488 |
> |
pview.voff = ourview.voff*vmult + yorg - 0.5*(vmult-1); |
| 489 |
|
fputs(VIEWSTR, torp); |
| 490 |
|
fprintview(&pview, torp); |
| 491 |
|
putc('\n', torp); |
| 492 |
< |
fflush(torp); /* assign piece to rpict */ |
| 492 |
> |
fflush(torp); /* assigns piece to rpict */ |
| 493 |
|
putpiece(xorg, yorg); /* place piece in output */ |
| 232 |
– |
if (verbose) { /* notify caller */ |
| 233 |
– |
strcat(buf, " done\n"); |
| 234 |
– |
writebuf(fileno(stdout), buf, strlen(buf)); |
| 235 |
– |
} |
| 494 |
|
} |
| 495 |
|
} |
| 496 |
|
|
| 497 |
|
|
| 498 |
< |
putpiece(xpos, ypos) /* get next piece from rpict */ |
| 499 |
< |
int xpos, ypos; |
| 498 |
> |
static int |
| 499 |
> |
putpiece( /* get next piece from rpict */ |
| 500 |
> |
int xpos, |
| 501 |
> |
int ypos |
| 502 |
> |
) |
| 503 |
|
{ |
| 504 |
+ |
struct flock fls; |
| 505 |
+ |
int pid, status; |
| 506 |
|
int hr, vr; |
| 507 |
< |
int y; |
| 508 |
< |
|
| 509 |
< |
getheader(fromrp, NULL); /* discard header info. */ |
| 510 |
< |
if (fscnresolu(&hr, &vr, fromrp) < 0 || /* check resolution */ |
| 511 |
< |
hr != hres || vr != vres) { |
| 512 |
< |
fprintf(stderr, "%s: resolution mismatch from rpict\n", |
| 250 |
< |
progname); |
| 251 |
< |
exit(1); |
| 507 |
> |
register int y; |
| 508 |
> |
/* check bounds */ |
| 509 |
> |
if ((xpos < 0) | (ypos < 0) | (xpos >= hmult) | (ypos >= vmult)) { |
| 510 |
> |
fprintf(stderr, "%s: requested piece (%d,%d) out of range\n", |
| 511 |
> |
progname, xpos, ypos); |
| 512 |
> |
exit(cleanup(1)); |
| 513 |
|
} |
| 514 |
< |
for (y = 0; y < vr; y++) { /* transfer scanlines */ |
| 515 |
< |
if (freadcolrs(scanline, hr, fromrp) < 0) { |
| 516 |
< |
fprintf(stderr, "%s: read error from rpict\n", |
| 517 |
< |
progname); |
| 518 |
< |
exit(1); |
| 514 |
> |
/* check header from rpict */ |
| 515 |
> |
guard_io(); |
| 516 |
> |
getheader(fromrp, NULL, NULL); |
| 517 |
> |
if (!fscnresolu(&hr, &vr, fromrp) || (hr != hres) | (vr != vres)) { |
| 518 |
> |
fprintf(stderr, "%s: resolution mismatch from %s\n", |
| 519 |
> |
progname, rpargv[0]); |
| 520 |
> |
exit(cleanup(1)); |
| 521 |
> |
} |
| 522 |
> |
if (verbose) { /* notify caller */ |
| 523 |
> |
printf("%d %d begun\n", xpos, ypos); |
| 524 |
> |
fflush(stdout); |
| 525 |
> |
} |
| 526 |
> |
unguard(); |
| 527 |
> |
/* load new piece into buffer */ |
| 528 |
> |
for (y = 0; y < vr; y++) { |
| 529 |
> |
guard_io(); |
| 530 |
> |
if (freadcolrs(pbuf+y*hr, hr, fromrp) < 0) { |
| 531 |
> |
fprintf(stderr, "%s: read error from %s\n", |
| 532 |
> |
progname, rpargv[0]); |
| 533 |
> |
exit(cleanup(1)); |
| 534 |
|
} |
| 535 |
< |
if ((y == 0 || hmult != 1) && lseek(outfd, |
| 536 |
< |
scanorig+((long)((vmult-1-ypos)*vres+y)*hmult*hres+xpos*hres)*sizeof(COLR), |
| 537 |
< |
0) == -1) { |
| 538 |
< |
fprintf(stderr, "%s: seek error\n", outfile); |
| 539 |
< |
exit(1); |
| 535 |
> |
unguard(); |
| 536 |
> |
} |
| 537 |
> |
#if MAXFORK |
| 538 |
> |
/* fork so we don't slow rpict down */ |
| 539 |
> |
if ((pid = fork()) > 0) { |
| 540 |
> |
if (++nforked >= MAXFORK) { |
| 541 |
> |
wait(&status); /* reap a child */ |
| 542 |
> |
if (status) |
| 543 |
> |
exit(cleanup(status>>8 & 0xff)); |
| 544 |
> |
nforked--; |
| 545 |
|
} |
| 546 |
< |
if (writebuf(outfd, (char *)scanline, hr*sizeof(COLR)) != |
| 547 |
< |
hr*sizeof(COLR)) { |
| 548 |
< |
fprintf(stderr, "%s: write error\n", outfile); |
| 549 |
< |
exit(1); |
| 546 |
> |
return(pid); |
| 547 |
> |
} |
| 548 |
> |
#else |
| 549 |
> |
pid = -1; /* no forking */ |
| 550 |
> |
#endif |
| 551 |
> |
fls.l_start = scanorig + |
| 552 |
> |
((long)(vmult-1-ypos)*vres*hmult+xpos)*hres*sizeof(COLR); |
| 553 |
> |
#if NFS |
| 554 |
> |
fls.l_len = ((long)(vres-1)*hmult+1)*hres*sizeof(COLR); |
| 555 |
> |
/* lock file section so NFS doesn't mess up */ |
| 556 |
> |
fls.l_whence = 0; |
| 557 |
> |
fls.l_type = F_WRLCK; |
| 558 |
> |
if (fcntl(outfd, F_SETLKW, &fls) < 0) |
| 559 |
> |
filerr("lock"); |
| 560 |
> |
#endif |
| 561 |
> |
/* write new piece to file */ |
| 562 |
> |
if (lseek(outfd, (off_t)fls.l_start, SEEK_SET) < 0) |
| 563 |
> |
filerr("seek"); |
| 564 |
> |
if (hmult == 1) { |
| 565 |
> |
if (writebuf(outfd, (char *)pbuf, |
| 566 |
> |
vr*hr*sizeof(COLR)) != vr*hr*sizeof(COLR)) |
| 567 |
> |
filerr("write"); |
| 568 |
> |
} else |
| 569 |
> |
for (y = 0; y < vr; y++) { |
| 570 |
> |
if (writebuf(outfd, (char *)(pbuf+y*hr), |
| 571 |
> |
hr*sizeof(COLR)) != hr*sizeof(COLR)) |
| 572 |
> |
filerr("write"); |
| 573 |
> |
if (y < vr-1 && lseek(outfd, |
| 574 |
> |
(off_t)(hmult-1)*hr*sizeof(COLR), |
| 575 |
> |
SEEK_CUR) < 0) |
| 576 |
> |
filerr("seek"); |
| 577 |
|
} |
| 578 |
+ |
#if NFS |
| 579 |
+ |
fls.l_type = F_UNLCK; /* release lock */ |
| 580 |
+ |
if (fcntl(outfd, F_SETLKW, &fls) < 0) |
| 581 |
+ |
filerr("lock"); |
| 582 |
+ |
#endif |
| 583 |
+ |
if (verbose) { /* notify caller */ |
| 584 |
+ |
printf("%d %d done\n", xpos, ypos); |
| 585 |
+ |
fflush(stdout); |
| 586 |
|
} |
| 587 |
+ |
if (syncfp != NULL) { /* record what's been done */ |
| 588 |
+ |
sflock(F_WRLCK); |
| 589 |
+ |
fseek(syncfp, 0L, 2); /* append index */ |
| 590 |
+ |
fprintf(syncfp, "%4d %4d\n", xpos, ypos); |
| 591 |
+ |
fflush(syncfp); |
| 592 |
+ |
/*** Unlock not necessary, since |
| 593 |
+ |
sflock(F_UNLCK); _exit() or nextpiece() is next ***/ |
| 594 |
+ |
} |
| 595 |
+ |
if (pid == -1) /* didn't fork or fork failed */ |
| 596 |
+ |
return(0); |
| 597 |
+ |
_exit(0); /* else exit child process (releasing locks) */ |
| 598 |
|
} |
| 599 |
+ |
|
| 600 |
+ |
|
| 601 |
+ |
static void |
| 602 |
+ |
filerr( /* report file error and exit */ |
| 603 |
+ |
char *t |
| 604 |
+ |
) |
| 605 |
+ |
{ |
| 606 |
+ |
fprintf(stderr, "%s: %s error on file \"%s\": %s\n", |
| 607 |
+ |
progname, t, outfile, strerror(errno)); |
| 608 |
+ |
_exit(1); |
| 609 |
+ |
} |
| 610 |
+ |
|
| 611 |
+ |
#endif |
