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root/Development/ray/src/util/rpiece.c

Comparing ray/src/util/rpiece.c (file contents):
Revision 2.41 by schorsch, Sun Jul 27 22:12:04 2003 UTC vs.
Revision 2.46 by greg, Wed Aug 22 17:49:54 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	–
24	–	#include "color.h"
25	–	#include "view.h"
26	–	#include "rtprocess.h"
27	–
36		#ifndef NFS
37		#define  NFS                    1
38		#endif
#	Line 42 | 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 75 | 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 187 | 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 202 | 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[];
#	Line 225 | 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");
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 294 | 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 336 | 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 380 | 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 396 | 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;
#	Line 443 | 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;
#	Line 505 | 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 518 | 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 544 | 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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