src/ot/oconv.c

#ifndef lint
static const char RCSid[] = "$Id: oconv.c,v 2.16 2003/06/08 12:03:10 schorsch Exp $";
#endif
/*
 *  oconv.c - main program for object to octree conversion.
 *
 *     7/29/85
 */

#include  "standard.h"
#include  "platform.h"
#include  "octree.h"
#include  "object.h"
#include  "otypes.h"
#include  "paths.h"

#define  OMARGIN        (10*FTINY)      /* margin around global cube */

#define  MAXOBJFIL      127             /* maximum number of scene files */

char  *progname;                        /* argv[0] */

int  nowarn = 0;                        /* supress warnings? */

int  objlim = 6;                        /* # of objects before split */

int  resolu = 16384;                    /* octree resolution limit */

CUBE  thescene = {EMPTY, {0.0, 0.0, 0.0}, 0.0};         /* our scene */

char  *ofname[MAXOBJFIL+1];             /* object file names */
int  nfiles = 0;                        /* number of object files */

double  mincusize;                      /* minimum cube size from resolu */

void  (*addobjnotify[])() = {NULL};     /* new object notifier functions */


main(argc, argv)                /* convert object files to an octree */
int  argc;
char  *argv[];
{
        FVECT  bbmin, bbmax;
        char  *infile = NULL;
        int  inpfrozen = 0;
        int  outflags = IO_ALL;
        OBJECT  startobj;
        int  i;

        progname = argv[0] = fixargv0(argv[0]);

        initotypes();

        for (i = 1; i < argc && argv[i][0] == '-'; i++)
                switch (argv[i][1]) {
                case '\0':                              /* scene from stdin */
                        goto breakopt;
                case 'i':                               /* input octree */
                        infile = argv[++i];
                        break;
                case 'b':                               /* bounding cube */
                        thescene.cuorg[0] = atof(argv[++i]) - OMARGIN;
                        thescene.cuorg[1] = atof(argv[++i]) - OMARGIN;
                        thescene.cuorg[2] = atof(argv[++i]) - OMARGIN;
                        thescene.cusize = atof(argv[++i]) + 2*OMARGIN;
                        break;
                case 'n':                               /* set limit */
                        objlim = atoi(argv[++i]);
                        break;
                case 'r':                               /* resolution limit */
                        resolu = atoi(argv[++i]);
                        break;
                case 'f':                               /* freeze octree */
                        outflags &= ~IO_FILES;
                        break;
                case 'w':                               /* supress warnings */
                        nowarn = 1;
                        break;
                default:
                        sprintf(errmsg, "unknown option: '%s'", argv[i]);
                        error(USER, errmsg);
                        break;
                }
breakopt:
        SET_FILE_BINARY(stdout);
        if (infile != NULL) {           /* get old octree & objects */
                if (thescene.cusize > FTINY)
                        error(USER, "only one of '-b' or '-i'");
                nfiles = readoct(infile, IO_ALL, &thescene, ofname);
                if (nfiles == 0)
                        inpfrozen++;
        } else
                newheader("RADIANCE", stdout);  /* new binary file header */
        printargs(argc, argv, stdout);
        fputformat(OCTFMT, stdout);
        printf("\n");

        startobj = nobjects;            /* previous objects already converted */

        for ( ; i < argc; i++)          /* read new scene descriptions */
                if (!strcmp(argv[i], "-")) {    /* from stdin */
                        readobj(NULL);
                        outflags &= ~IO_FILES;
                } else {                        /* from file */
                        if (nfiles >= MAXOBJFIL)
                                error(INTERNAL, "too many scene files");
                        readobj(ofname[nfiles++] = argv[i]);
                }

        ofname[nfiles] = NULL;

        if (inpfrozen && outflags & IO_FILES) {
                error(WARNING, "frozen octree");
                outflags &= ~IO_FILES;
        }
                                                /* find bounding box */
        bbmin[0] = bbmin[1] = bbmin[2] = FHUGE;
        bbmax[0] = bbmax[1] = bbmax[2] = -FHUGE;
        for (i = startobj; i < nobjects; i++)
                add2bbox(objptr(i), bbmin, bbmax);
                                                /* set/check cube */
        if (thescene.cusize == 0.0) {
                if (bbmin[0] <= bbmax[0]) {
                        for (i = 0; i < 3; i++) {
                                bbmin[i] -= OMARGIN;
                                bbmax[i] += OMARGIN;
                        }
                        for (i = 0; i < 3; i++)
                                if (bbmax[i] - bbmin[i] > thescene.cusize)
                                        thescene.cusize = bbmax[i] - bbmin[i];
                        for (i = 0; i < 3; i++)
                                thescene.cuorg[i] =
                                        (bbmax[i]+bbmin[i]-thescene.cusize)*.5;
                }
        } else {
                for (i = 0; i < 3; i++)
                        if (bbmin[i] < thescene.cuorg[i] ||
                                bbmax[i] > thescene.cuorg[i] + thescene.cusize)
                                error(USER, "boundary does not encompass scene");
        }

        mincusize = thescene.cusize / resolu - FTINY;

        for (i = startobj; i < nobjects; i++)           /* add new objects */
                addobject(&thescene, i);

        thescene.cutree = combine(thescene.cutree);     /* optimize */

        writeoct(outflags, &thescene, ofname);  /* write structures to stdout */

        quit(0);
}


void
quit(code)                              /* exit program */
int  code;
{
        exit(code);
}


void
cputs()                                 /* interactive error */
{
        /* referenced, but not used */
}


void
wputs(s)                                /* warning message */
char  *s;
{
        if (!nowarn)
                eputs(s);
}


void
eputs(s)                                /* put string to stderr */
register char  *s;
{
        static int  inln = 0;

        if (!inln++) {
                fputs(progname, stderr);
                fputs(": ", stderr);
        }
        fputs(s, stderr);
        if (*s && s[strlen(s)-1] == '\n')
                inln = 0;
}

                                /* conflicting def's in param.h */
#undef  tstbit
#undef  setbit
#undef  clrbit
#undef  tglbit

#define  bitop(f,i,op)          (f[((i)>>3)] op (1<<((i)&7)))
#define  tstbit(f,i)            bitop(f,i,&)
#define  setbit(f,i)            bitop(f,i,|=)
#define  clrbit(f,i)            bitop(f,i,&=~)
#define  tglbit(f,i)            bitop(f,i,^=)


addobject(cu, obj)                      /* add an object to a cube */
register CUBE  *cu;
OBJECT  obj;
{
        int  inc;

        inc = (*ofun[objptr(obj)->otype].funp)(objptr(obj), cu);

        if (inc == O_MISS)
                return;                         /* no intersection */

        if (istree(cu->cutree)) {
                CUBE  cukid;                    /* do children */
                int  i, j;
                cukid.cusize = cu->cusize * 0.5;
                for (i = 0; i < 8; i++) {
                        cukid.cutree = octkid(cu->cutree, i);
                        for (j = 0; j < 3; j++) {
                                cukid.cuorg[j] = cu->cuorg[j];
                                if ((1<<j) & i)
                                        cukid.cuorg[j] += cukid.cusize;
                        }
                        addobject(&cukid, obj);
                        octkid(cu->cutree, i) = cukid.cutree;
                }
                return;
        }
        if (isempty(cu->cutree)) {
                OBJECT  oset[2];                /* singular set */
                oset[0] = 1; oset[1] = obj;
                cu->cutree = fullnode(oset);
                return;
        }
                                        /* add to full node */
        add2full(cu, obj, inc);
}


add2full(cu, obj, inc)                  /* add object to full node */
register CUBE  *cu;
OBJECT  obj;
int  inc;
{
        OCTREE  ot;
        OBJECT  oset[MAXSET+1];
        CUBE  cukid;
        unsigned char  inflg[(MAXSET+7)/8], volflg[(MAXSET+7)/8];
        register int  i, j;

        objset(oset, cu->cutree);
        cukid.cusize = cu->cusize * 0.5;

        if (inc==O_IN || oset[0] < objlim || cukid.cusize < mincusize) {
                                                /* add to set */
                if (oset[0] >= MAXSET) {
                        sprintf(errmsg, "set overflow in addobject (%s)",
                                        objptr(obj)->oname);
                        error(INTERNAL, errmsg);
                }
                insertelem(oset, obj);
                cu->cutree = fullnode(oset);
                return;
        }
                                        /* subdivide cube */
        if ((ot = octalloc()) == EMPTY)
                error(SYSTEM, "out of octree space");
                                        /* mark volumes */
        j = (oset[0]+7)>>3;
        while (j--)
                volflg[j] = inflg[j] = 0;
        for (j = 1; j <= oset[0]; j++)
                if (isvolume(objptr(oset[j])->otype)) {
                        setbit(volflg,j-1);
                        if ((*ofun[objptr(oset[j])->otype].funp)
                                        (objptr(oset[j]), cu) == O_IN)
                                setbit(inflg,j-1);
                }
                                        /* assign subcubes */
        for (i = 0; i < 8; i++) {
                cukid.cutree = EMPTY;
                for (j = 0; j < 3; j++) {
                        cukid.cuorg[j] = cu->cuorg[j];
                        if ((1<<j) & i)
                                cukid.cuorg[j] += cukid.cusize;
                }
                                        /* surfaces first */
                for (j = 1; j <= oset[0]; j++)
                        if (!tstbit(volflg,j-1))
                                addobject(&cukid, oset[j]);
                                        /* then this object */
                addobject(&cukid, obj);
                                        /* then partial volumes */
                for (j = 1; j <= oset[0]; j++)
                        if (tstbit(volflg,j-1) &&
                                        !tstbit(inflg,j-1))
                                addobject(&cukid, oset[j]);
                                        /* full volumes last */
                for (j = 1; j <= oset[0]; j++)
                        if (tstbit(inflg,j-1))
                                addobject(&cukid, oset[j]);
                                        /* returned node */
                octkid(ot, i) = cukid.cutree;
        }
        cu->cutree = ot;
}
Revision:	2.17
Committed:	Sat Jun 21 15:05:01 2003 UTC (20 years, 10 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.16:	+6 -1 lines
Log Message:	Fixed some conflicting definitions
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	2.17	static const char RCSid[] = "$Id: oconv.c,v 2.16 2003/06/08 12:03:10 schorsch Exp $";
3	greg	1.1	#endif
4			/*
5			* oconv.c - main program for object to octree conversion.
6			*
7			* 7/29/85
8			*/
9
10			#include "standard.h"
11	schorsch	2.16	#include "platform.h"
12	greg	1.1	#include "octree.h"
13			#include "object.h"
14			#include "otypes.h"
15	greg	2.4	#include "paths.h"
16	greg	1.14
17	greg	2.4	#define OMARGIN (10FTINY) / margin around global cube */
18	greg	1.2
19	greg	2.11	#define MAXOBJFIL 127 /* maximum number of scene files */
20	greg	1.1
21			char progname; / argv[0] */
22
23			int nowarn = 0; /* supress warnings? */
24
25	greg	2.14	int objlim = 6; /* # of objects before split */
26	greg	1.1
27	greg	2.14	int resolu = 16384; /* octree resolution limit */
28	greg	1.1
29			CUBE thescene = {EMPTY, {0.0, 0.0, 0.0}, 0.0}; /* our scene */
30
31			char ofname[MAXOBJFIL+1]; / object file names */
32			int nfiles = 0; /* number of object files */
33
34	greg	2.4	double mincusize; /* minimum cube size from resolu */
35	greg	1.1
36	greg	2.12	void (addobjnotify[])() = {NULL}; / new object notifier functions */
37	greg	1.7
38	greg	1.1
39			main(argc, argv) /* convert object files to an octree */
40			int argc;
41	greg	2.10	char *argv[];
42	greg	1.1	{
43			FVECT bbmin, bbmax;
44			char *infile = NULL;
45	greg	2.6	int inpfrozen = 0;
46	greg	1.1	int outflags = IO_ALL;
47	greg	2.4	OBJECT startobj;
48	greg	1.1	int i;
49
50	greg	2.5	progname = argv[0] = fixargv0(argv[0]);
51	greg	1.1
52	greg	1.12	initotypes();
53
54	greg	1.5	for (i = 1; i < argc && argv[i][0] == '-'; i++)
55	greg	1.1	switch (argv[i][1]) {
56	greg	1.5	case '\0': /* scene from stdin */
57			goto breakopt;
58	greg	1.1	case 'i': /* input octree */
59			infile = argv[++i];
60			break;
61			case 'b': /* bounding cube */
62	greg	1.2	thescene.cuorg[0] = atof(argv[++i]) - OMARGIN;
63			thescene.cuorg[1] = atof(argv[++i]) - OMARGIN;
64			thescene.cuorg[2] = atof(argv[++i]) - OMARGIN;
65			thescene.cusize = atof(argv[++i]) + 2*OMARGIN;
66	greg	1.1	break;
67			case 'n': /* set limit */
68			objlim = atoi(argv[++i]);
69			break;
70			case 'r': /* resolution limit */
71			resolu = atoi(argv[++i]);
72			break;
73			case 'f': /* freeze octree */
74			outflags &= ~IO_FILES;
75			break;
76			case 'w': /* supress warnings */
77			nowarn = 1;
78			break;
79			default:
80			sprintf(errmsg, "unknown option: '%s'", argv[i]);
81			error(USER, errmsg);
82			break;
83			}
84	greg	1.5	breakopt:
85	schorsch	2.15	SET_FILE_BINARY(stdout);
86	greg	1.1	if (infile != NULL) { /* get old octree & objects */
87			if (thescene.cusize > FTINY)
88			error(USER, "only one of '-b' or '-i'");
89			nfiles = readoct(infile, IO_ALL, &thescene, ofname);
90	greg	2.6	if (nfiles == 0)
91			inpfrozen++;
92	greg	2.8	} else
93			newheader("RADIANCE", stdout); /* new binary file header */
94	greg	2.7	printargs(argc, argv, stdout);
95	greg	1.13	fputformat(OCTFMT, stdout);
96	greg	1.1	printf("\n");
97
98			startobj = nobjects; /* previous objects already converted */
99	greg	2.5
100	greg	1.4	for ( ; i < argc; i++) /* read new scene descriptions */
101			if (!strcmp(argv[i], "-")) { /* from stdin */
102			readobj(NULL);
103			outflags &= ~IO_FILES;
104			} else { /* from file */
105			if (nfiles >= MAXOBJFIL)
106			error(INTERNAL, "too many scene files");
107			readobj(ofname[nfiles++] = argv[i]);
108			}
109
110	greg	1.1	ofname[nfiles] = NULL;
111	greg	2.6
112			if (inpfrozen && outflags & IO_FILES) {
113			error(WARNING, "frozen octree");
114			outflags &= ~IO_FILES;
115			}
116	greg	1.1	/* find bounding box */
117			bbmin[0] = bbmin[1] = bbmin[2] = FHUGE;
118			bbmax[0] = bbmax[1] = bbmax[2] = -FHUGE;
119			for (i = startobj; i < nobjects; i++)
120			add2bbox(objptr(i), bbmin, bbmax);
121			/* set/check cube */
122			if (thescene.cusize == 0.0) {
123			if (bbmin[0] <= bbmax[0]) {
124			for (i = 0; i < 3; i++) {
125	greg	1.2	bbmin[i] -= OMARGIN;
126			bbmax[i] += OMARGIN;
127	greg	1.1	}
128			for (i = 0; i < 3; i++)
129			if (bbmax[i] - bbmin[i] > thescene.cusize)
130			thescene.cusize = bbmax[i] - bbmin[i];
131	greg	1.3	for (i = 0; i < 3; i++)
132			thescene.cuorg[i] =
133			(bbmax[i]+bbmin[i]-thescene.cusize)*.5;
134	greg	1.1	}
135			} else {
136			for (i = 0; i < 3; i++)
137			if (bbmin[i] < thescene.cuorg[i] \|\|
138			bbmax[i] > thescene.cuorg[i] + thescene.cusize)
139			error(USER, "boundary does not encompass scene");
140			}
141
142			mincusize = thescene.cusize / resolu - FTINY;
143	greg	2.5
144	greg	1.1	for (i = startobj; i < nobjects; i++) /* add new objects */
145			addobject(&thescene, i);
146	greg	2.5
147	greg	1.1	thescene.cutree = combine(thescene.cutree); /* optimize */
148
149			writeoct(outflags, &thescene, ofname); /* write structures to stdout */
150
151			quit(0);
152			}
153
154
155	greg	2.12	void
156	greg	1.1	quit(code) /* exit program */
157			int code;
158			{
159			exit(code);
160			}
161
162
163	greg	2.12	void
164	greg	1.1	cputs() /* interactive error */
165			{
166			/* referenced, but not used */
167			}
168
169
170	greg	2.12	void
171	greg	1.1	wputs(s) /* warning message */
172			char *s;
173			{
174			if (!nowarn)
175			eputs(s);
176			}
177
178
179	greg	2.12	void
180	greg	1.1	eputs(s) /* put string to stderr */
181			register char *s;
182			{
183	greg	1.9	static int inln = 0;
184	greg	1.1
185	greg	1.9	if (!inln++) {
186	greg	1.1	fputs(progname, stderr);
187			fputs(": ", stderr);
188			}
189			fputs(s, stderr);
190			if (*s && s[strlen(s)-1] == '\n')
191	greg	1.9	inln = 0;
192	greg	1.1	}
193
194	greg	2.17	/* conflicting def's in param.h */
195			#undef tstbit
196			#undef setbit
197			#undef clrbit
198			#undef tglbit
199	greg	1.1
200	greg	2.4	#define bitop(f,i,op) (f[((i)>>3)] op (1<<((i)&7)))
201			#define tstbit(f,i) bitop(f,i,&)
202			#define setbit(f,i) bitop(f,i,\|=)
203			#define clrbit(f,i) bitop(f,i,&=~)
204			#define tglbit(f,i) bitop(f,i,^=)
205	greg	1.11
206
207	greg	1.1	addobject(cu, obj) /* add an object to a cube */
208			register CUBE *cu;
209	greg	2.4	OBJECT obj;
210	greg	1.1	{
211	greg	2.13	int inc;
212	greg	1.1
213	greg	2.13	inc = (*ofun[objptr(obj)->otype].funp)(objptr(obj), cu);
214	greg	1.1
215	greg	2.13	if (inc == O_MISS)
216	greg	1.1	return; /* no intersection */
217	greg	2.5
218	greg	1.1	if (istree(cu->cutree)) {
219	greg	2.13	CUBE cukid; /* do children */
220			int i, j;
221	greg	1.1	cukid.cusize = cu->cusize * 0.5;
222			for (i = 0; i < 8; i++) {
223			cukid.cutree = octkid(cu->cutree, i);
224			for (j = 0; j < 3; j++) {
225			cukid.cuorg[j] = cu->cuorg[j];
226			if ((1<<j) & i)
227			cukid.cuorg[j] += cukid.cusize;
228			}
229			addobject(&cukid, obj);
230			octkid(cu->cutree, i) = cukid.cutree;
231			}
232	greg	1.11	return;
233			}
234			if (isempty(cu->cutree)) {
235	greg	2.13	OBJECT oset[2]; /* singular set */
236	greg	1.1	oset[0] = 1; oset[1] = obj;
237			cu->cutree = fullnode(oset);
238	greg	1.11	return;
239			}
240			/* add to full node */
241	greg	2.13	add2full(cu, obj, inc);
242			}
243
244
245			add2full(cu, obj, inc) /* add object to full node */
246			register CUBE *cu;
247			OBJECT obj;
248			int inc;
249			{
250			OCTREE ot;
251			OBJECT oset[MAXSET+1];
252			CUBE cukid;
253			unsigned char inflg[(MAXSET+7)/8], volflg[(MAXSET+7)/8];
254			register int i, j;
255
256	greg	1.11	objset(oset, cu->cutree);
257			cukid.cusize = cu->cusize * 0.5;
258	greg	2.5
259	greg	2.13	if (inc==O_IN \|\| oset[0] < objlim \|\| cukid.cusize < mincusize) {
260	greg	1.11	/* add to set */
261			if (oset[0] >= MAXSET) {
262	greg	2.3	sprintf(errmsg, "set overflow in addobject (%s)",
263	greg	1.11	objptr(obj)->oname);
264			error(INTERNAL, errmsg);
265	greg	1.1	}
266	greg	1.11	insertelem(oset, obj);
267			cu->cutree = fullnode(oset);
268			return;
269	greg	1.1	}
270	greg	1.11	/* subdivide cube */
271			if ((ot = octalloc()) == EMPTY)
272			error(SYSTEM, "out of octree space");
273			/* mark volumes */
274			j = (oset[0]+7)>>3;
275			while (j--)
276			volflg[j] = inflg[j] = 0;
277			for (j = 1; j <= oset[0]; j++)
278			if (isvolume(objptr(oset[j])->otype)) {
279			setbit(volflg,j-1);
280			if ((*ofun[objptr(oset[j])->otype].funp)
281	greg	2.3	(objptr(oset[j]), cu) == O_IN)
282	greg	1.11	setbit(inflg,j-1);
283			}
284			/* assign subcubes */
285			for (i = 0; i < 8; i++) {
286			cukid.cutree = EMPTY;
287			for (j = 0; j < 3; j++) {
288			cukid.cuorg[j] = cu->cuorg[j];
289			if ((1<<j) & i)
290			cukid.cuorg[j] += cukid.cusize;
291			}
292			/* surfaces first */
293			for (j = 1; j <= oset[0]; j++)
294			if (!tstbit(volflg,j-1))
295			addobject(&cukid, oset[j]);
296			/* then this object */
297			addobject(&cukid, obj);
298	greg	2.3	/* then partial volumes */
299	greg	1.11	for (j = 1; j <= oset[0]; j++)
300			if (tstbit(volflg,j-1) &&
301			!tstbit(inflg,j-1))
302			addobject(&cukid, oset[j]);
303	greg	2.3	/* full volumes last */
304	greg	1.11	for (j = 1; j <= oset[0]; j++)
305			if (tstbit(inflg,j-1))
306			addobject(&cukid, oset[j]);
307			/* returned node */
308			octkid(ot, i) = cukid.cutree;
309			}
310			cu->cutree = ot;
311	greg	1.1	}