10 |
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|
11 |
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#include "standard.h" |
12 |
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#include <fcntl.h> |
13 |
+ |
#include <signal.h> |
14 |
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#include "color.h" |
15 |
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#include "view.h" |
16 |
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#include "resolu.h" |
29 |
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char *outfile = NULL; |
30 |
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int outfd; |
31 |
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long scanorig; |
32 |
+ |
int syncfd = -1; /* lock file descriptor */ |
33 |
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|
34 |
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char *progname; |
35 |
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int verbose = 0; |
36 |
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|
37 |
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extern long lseek(), ftell(); |
38 |
|
|
39 |
+ |
int gotalrm = 0; |
40 |
+ |
int onalrm() { gotalrm++; } |
41 |
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|
42 |
+ |
|
43 |
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main(argc, argv) |
44 |
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int argc; |
45 |
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char *argv[]; |
93 |
|
break; |
94 |
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vmult = atoi(argv[++i]); |
95 |
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continue; |
96 |
+ |
case 'F': /* syncronization file */ |
97 |
+ |
if (argv[i][2]) |
98 |
+ |
break; |
99 |
+ |
if ((syncfd = open(argv[++i], O_RDWR)) < 0) { |
100 |
+ |
fprintf(stderr, "%s: cannot open\n", |
101 |
+ |
argv[i]); |
102 |
+ |
exit(1); |
103 |
+ |
} |
104 |
+ |
continue; |
105 |
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case 'o': /* output file */ |
106 |
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if (argv[i][2]) |
107 |
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break; |
135 |
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fprintf(stderr, "%s: %s\n", progname, err); |
136 |
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exit(1); |
137 |
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} |
138 |
+ |
if (syncfd != -1) { |
139 |
+ |
char buf[32]; |
140 |
+ |
buf[read(syncfd, buf, sizeof(buf)-1)] = '\0'; |
141 |
+ |
sscanf(buf, "%d %d", &hmult, &vmult); |
142 |
+ |
} |
143 |
|
normaspect(viewaspect(&ourview)*hmult/vmult, &pixaspect, &hres, &vres); |
144 |
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/* open output file */ |
145 |
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if ((outfd = open(outfile, O_WRONLY|O_CREAT|O_EXCL, 0666)) >= 0) { |
156 |
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putc('\n', fp); |
157 |
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fprtresolu(hres*hmult, vres*vmult, fp); |
158 |
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} else if ((outfd = open(outfile, O_RDWR)) >= 0) { |
140 |
– |
sleep(30); /* wait for header */ |
159 |
|
if ((fp = fdopen(dup(outfd), "r+")) == NULL) |
160 |
|
goto filerr; |
161 |
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getheader(fp, NULL); /* skip header */ |
172 |
|
scanorig = ftell(fp); /* record position of first scanline */ |
173 |
|
if (fclose(fp) == -1) /* done with stream i/o */ |
174 |
|
goto filerr; |
175 |
+ |
sync(); /* avoid NFS buffering */ |
176 |
|
/* start rpict process */ |
177 |
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if (open_process(rpd, rpargv) <= 0) { |
178 |
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fprintf(stderr, "%s: cannot start %s\n", progname, rpargv[0]); |
188 |
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fprintf(stderr, "%s: out of memory\n", progname); |
189 |
|
exit(1); |
190 |
|
} |
191 |
+ |
signal(SIGALRM, onalrm); |
192 |
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return; |
193 |
|
filerr: |
194 |
|
fprintf(stderr, "%s: file i/o error\n", outfile); |
197 |
|
|
198 |
|
|
199 |
|
int |
200 |
+ |
nextpiece(xp, yp) /* get next piece assignment */ |
201 |
+ |
int *xp, *yp; |
202 |
+ |
{ |
203 |
+ |
extern char *fgets(); |
204 |
+ |
struct flock fls; |
205 |
+ |
char buf[64]; |
206 |
+ |
|
207 |
+ |
if (gotalrm) /* someone wants us to quit */ |
208 |
+ |
return(0); |
209 |
+ |
if (syncfd != -1) { /* use sync file */ |
210 |
+ |
fls.l_type = F_WRLCK; /* gain exclusive access */ |
211 |
+ |
fls.l_whence = 0; |
212 |
+ |
fls.l_start = 0L; |
213 |
+ |
fls.l_len = 0L; |
214 |
+ |
fcntl(syncfd, F_SETLKW, &fls); |
215 |
+ |
lseek(syncfd, 0L, 0); |
216 |
+ |
buf[read(syncfd, buf, sizeof(buf)-1)] = '\0'; |
217 |
+ |
if (sscanf(buf, "%*d %*d %d %d", xp, yp) < 2) { |
218 |
+ |
*xp = hmult; |
219 |
+ |
*yp = vmult-1; |
220 |
+ |
} |
221 |
+ |
if (--(*xp) < 0) { /* decrement position */ |
222 |
+ |
*xp = hmult-1; |
223 |
+ |
if (--(*yp) < 0) { /* all done! */ |
224 |
+ |
close(syncfd); |
225 |
+ |
return(0); |
226 |
+ |
} |
227 |
+ |
} |
228 |
+ |
sprintf(buf, "%d %d\n%d %d\n", hmult, vmult, *xp, *yp); |
229 |
+ |
lseek(syncfd, 0L, 0); /* write new position */ |
230 |
+ |
write(syncfd, buf, strlen(buf)); |
231 |
+ |
fls.l_type = F_UNLCK; /* release sync file */ |
232 |
+ |
fcntl(syncfd, F_SETLKW, &fls); |
233 |
+ |
return(1); |
234 |
+ |
} |
235 |
+ |
if (fgets(buf, sizeof(buf), stdin) == NULL) /* use stdin */ |
236 |
+ |
return(0); |
237 |
+ |
if (sscanf(buf, "%d %d", xp, yp) == 2) |
238 |
+ |
return(1); |
239 |
+ |
fprintf(stderr, "%s: input format error\n", progname); |
240 |
+ |
exit(1); |
241 |
+ |
} |
242 |
+ |
|
243 |
+ |
|
244 |
+ |
int |
245 |
|
cleanup() /* close rpict process and clean up */ |
246 |
|
{ |
247 |
|
register int rpstat; |
258 |
|
|
259 |
|
rpiece() /* render picture piece by piece */ |
260 |
|
{ |
196 |
– |
extern char *gets(), *strcat(); |
261 |
|
VIEW pview; |
198 |
– |
char buf[48]; |
262 |
|
int xorg, yorg; |
263 |
|
|
264 |
< |
while (gets(buf) != NULL) { |
202 |
< |
if (sscanf(buf, "%d %d", &xorg, &yorg) != 2) { |
203 |
< |
fprintf(stderr, "%s: input format error\n", progname); |
204 |
< |
exit(1); |
205 |
< |
} |
264 |
> |
while (nextpiece(&xorg, &yorg)) { |
265 |
|
copystruct(&pview, &ourview); /* compute view for piece */ |
266 |
|
switch (ourview.type) { |
267 |
|
case VT_PER: |
294 |
|
fflush(torp); /* assign piece to rpict */ |
295 |
|
putpiece(xorg, yorg); /* place piece in output */ |
296 |
|
if (verbose) { /* notify caller */ |
297 |
< |
strcat(buf, " done\n"); |
298 |
< |
writebuf(fileno(stdout), buf, strlen(buf)); |
297 |
> |
printf("%d %d done\n", xorg, yorg); |
298 |
> |
fflush(stdout); |
299 |
|
} |
300 |
|
} |
301 |
|
} |
307 |
|
int hr, vr; |
308 |
|
int y; |
309 |
|
|
310 |
+ |
if (xpos < 0 | ypos < 0 | xpos >= hmult | ypos >= vmult) { |
311 |
+ |
fprintf(stderr, "%s: requested piece (%d,%d) out of range\n", |
312 |
+ |
progname, xpos, ypos); |
313 |
+ |
exit(1); |
314 |
+ |
} |
315 |
|
getheader(fromrp, NULL); /* discard header info. */ |
316 |
|
if (fscnresolu(&hr, &vr, fromrp) < 0 || /* check resolution */ |
317 |
|
hr != hres || vr != vres) { |