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root/radiance/ray/src/util/rpiece.c
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Comparing ray/src/util/rpiece.c (file contents):
Revision 2.38 by schorsch, Sun Jun 8 12:03:11 2003 UTC vs.
Revision 2.47 by greg, Wed Aug 22 18:46:36 2007 UTC

# Line 5 | Line 5 | static const char      RCSid[] = "$Id$";
5   * Generate sections of a picture.
6   */
7  
8 +
9 + #include <stdio.h>
10 + #include <signal.h>
11 + #include <sys/types.h>
12 + #ifndef NON_POSIX /* XXX need abstraction for process management */
13 + #include <sys/wait.h>
14 + #endif
15 +
16 + #include "platform.h"
17   #include "standard.h"
18 + #include "color.h"
19 + #include "view.h"
20 + #include "rtprocess.h"
21  
22   #ifndef F_SETLKW
23  
24 < main(argc, argv)
25 < int argc;
26 < char *argv[];
24 > int
25 > main(
26 >        int argc,
27 >        char *argv[]
28 > )
29   {
30          fprintf(stderr, "%s: no NFS lock manager on this machine\n", argv[0]);
31          exit(1);
# Line 19 | Line 33 | char *argv[];
33  
34   #else
35  
22 – #include <signal.h>
23 – #include "color.h"
24 – #include "view.h"
25 –
36   #ifndef NFS
37   #define  NFS                    1
38   #endif
# Line 40 | Line 50 | char *argv[];
50   #define unguard()       sigrelse(SIGALRM)
51   #endif
52   #ifndef guard_io
53 < #define guard_io()      0
54 < #define unguard()       0
53 > #define guard_io()      
54 > #define unguard()      
55   #endif
56  
57   extern char  *strerror();
# Line 49 | Line 59 | extern char  *strerror();
59                                  /* rpict command */
60   char  *rpargv[128] = {"rpict", "-S", "1"};
61   int  rpargc = 3;
52 – int  rpd[3];
62   FILE  *torp, *fromrp;
63   COLR  *pbuf;
64                                  /* our view parameters */
# Line 74 | Line 83 | int  rvrlim = -1;
83   int  gotalrm = 0;
84   void  onalrm(int i) { gotalrm++; }
85  
86 + static void dolock(int  fd, int  ltyp);
87 + static void init(int  ac, char  **av);
88 + static int nextpiece(int        *xp, int        *yp);
89 + static int rvrpiece(int *xp, int        *yp);
90 + static int cleanup(int  rstat);
91 + static void rpiece(void);
92 + static int putpiece(int xpos, int       ypos);
93 + static void filerr(char  *t);
94  
95 < main(argc, argv)
96 < int  argc;
97 < char  *argv[];
95 >
96 > int
97 > main(
98 >        int  argc,
99 >        char  *argv[]
100 > )
101   {
102          register int  i, rval;
103          
# Line 186 | Line 206 | char  *argv[];
206   }
207  
208  
209 < dolock(fd, ltyp)                /* lock or unlock a file */
210 < int  fd;
211 < int  ltyp;
209 > static void
210 > dolock(         /* lock or unlock a file */
211 >        int  fd,
212 >        int  ltyp
213 > )
214   {
215          static struct flock  fls;       /* static so initialized to zeroes */
216  
# Line 201 | Line 223 | int  ltyp;
223   }
224  
225  
226 < init(ac, av)                    /* set up output file and start rpict */
227 < int  ac;
228 < char  **av;
226 > static void
227 > init(                   /* set up output file and start rpict */
228 >        int  ac,
229 >        char  **av
230 > )
231   {
232          static char  hrbuf[16], vrbuf[16];
233          extern char  VersionID[];
234          char  *err;
235          FILE  *fp;
236          int  hr, vr;
237 +        SUBPROC  rpd; /* since we don't close_process(), this can be local */
238                                          /* set up view */
239          if ((err = setview(&ourview)) != NULL) {
240                  fprintf(stderr, "%s: %s\n", progname, err);
# Line 223 | Line 248 | char  **av;
248                                          /* compute piece size */
249          hres /= hmult;
250          vres /= vmult;
251 +        if (hres <= 0 || vres <= 0) {
252 +                fprintf(stderr, "%s: illegal resolution/subdivision\n", progname);
253 +                exit(1);
254 +        }
255          normaspect(viewaspect(&ourview)*hmult/vmult, &pixaspect, &hres, &vres);
256          sprintf(hrbuf, "%d", hres);
257          rpargv[rpargc++] = "-x"; rpargv[rpargc++] = hrbuf;
# Line 268 | Line 297 | char  **av;
297                  goto filerr;
298          dolock(outfd, F_UNLCK);
299                                          /* start rpict process */
300 <        if (open_process(rpd, rpargv) <= 0) {
300 >        if (open_process(&rpd, rpargv) <= 0) {
301                  fprintf(stderr, "%s: cannot start %s\n", progname, rpargv[0]);
302                  exit(1);
303          }
304 <        if ((fromrp = fdopen(rpd[0], "r")) == NULL ||
305 <                        (torp = fdopen(rpd[1], "w")) == NULL) {
304 >        if ((fromrp = fdopen(rpd.r, "r")) == NULL ||
305 >                        (torp = fdopen(rpd.w, "w")) == NULL) {
306                  fprintf(stderr, "%s: cannot open stream to %s\n",
307                                  progname, rpargv[0]);
308                  exit(1);
# Line 292 | Line 321 | filerr:
321   }
322  
323  
324 < int
325 < nextpiece(xp, yp)               /* get next piece assignment */
326 < int  *xp, *yp;
324 > static int
325 > nextpiece(              /* get next piece assignment */
326 >        int     *xp,
327 >        int     *yp
328 > )
329   {
330          if (gotalrm)                    /* someone wants us to quit */
331                  return(0);
# Line 334 | Line 365 | int  *xp, *yp;
365   }
366  
367  
368 < int
369 < rvrpiece(xp, yp)                /* check for recoverable pieces */
370 < register int  *xp, *yp;
368 > static int
369 > rvrpiece(               /* check for recoverable pieces */
370 >        register int    *xp,
371 >        register int    *yp
372 > )
373   {
374          static char  *pdone = NULL;     /* which pieces are done */
375          static long  readpos = -1;      /* how far we've read */
# Line 378 | Line 411 | register int  *xp, *yp;
411   }
412  
413  
414 < int
415 < cleanup(rstat)                  /* close rpict process and clean up */
416 < int  rstat;
414 > static int
415 > cleanup(                        /* close rpict process and clean up */
416 >        int  rstat
417 > )
418   {
419          int  status;
420  
# Line 394 | Line 428 | int  rstat;
428   }
429  
430  
431 < rpiece()                        /* render picture piece by piece */
431 > static void
432 > rpiece(void)                    /* render picture piece by piece */
433   {
434          VIEW  pview;
435          int  xorg, yorg;
436                                          /* compute view parameters */
437 <        copystruct(&pview, &ourview);
437 >        pview = ourview;
438          switch (ourview.type) {
439          case VT_PER:
440                  pview.horiz = 2.*180./PI*atan(
# Line 441 | Line 476 | rpiece()                       /* render picture piece by piece */
476   }
477  
478  
479 < int
480 < putpiece(xpos, ypos)            /* get next piece from rpict */
481 < int  xpos, ypos;
479 > static int
480 > putpiece(               /* get next piece from rpict */
481 > int     xpos,
482 > int     ypos
483 > )
484   {
485          struct flock  fls;
486          int  pid, status;
487          int  hr, vr;
488          register int  y;
489                                  /* check bounds */
490 <        if (xpos < 0 | ypos < 0 | xpos >= hmult | ypos >= vmult) {
490 >        if ((xpos < 0) | (ypos < 0) | (xpos >= hmult) | (ypos >= vmult)) {
491                  fprintf(stderr, "%s: requested piece (%d,%d) out of range\n",
492                                  progname, xpos, ypos);
493                  exit(cleanup(1));
# Line 458 | Line 495 | int  xpos, ypos;
495                                  /* check header from rpict */
496          guard_io();
497          getheader(fromrp, NULL, NULL);
498 <        if (!fscnresolu(&hr, &vr, fromrp) || hr != hres | vr != vres) {
498 >        if (!fscnresolu(&hr, &vr, fromrp) || (hr != hres) | (vr != vres)) {
499                  fprintf(stderr, "%s: resolution mismatch from %s\n",
500                                  progname, rpargv[0]);
501                  exit(cleanup(1));
# Line 503 | Line 540 | int  xpos, ypos;
540                  filerr("lock");
541   #endif
542                                  /* write new piece to file */
543 <        if (lseek(outfd, (off_t)fls.l_start, 0) < 0)
543 >        if (lseek(outfd, (off_t)fls.l_start, SEEK_SET) < 0)
544                  filerr("seek");
545          if (hmult == 1) {
546                  if (writebuf(outfd, (char *)pbuf,
# Line 516 | Line 553 | int  xpos, ypos;
553                                  filerr("write");
554                          if (y < vr-1 && lseek(outfd,
555                                          (off_t)(hmult-1)*hr*sizeof(COLR),
556 <                                        1) < 0)
556 >                                        SEEK_CUR) < 0)
557                                  filerr("seek");
558                  }
559   #if NFS
# Line 542 | Line 579 | int  xpos, ypos;
579   }
580  
581  
582 < filerr(t)                       /* report file error and exit */
583 < char  *t;
582 > static void
583 > filerr(                 /* report file error and exit */
584 >        char  *t
585 > )
586   {
587          fprintf(stderr, "%s: %s error on file \"%s\": %s\n",
588                          progname, t, outfile, strerror(errno));

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