src/ot/oconv.c

#ifndef lint
static const char RCSid[] = "$Id: oconv.c,v 2.14 2003/03/12 17:26:58 greg Exp $";
#endif
/*
 *  oconv.c - main program for object to octree conversion.
 *
 *     7/29/85
 */

#include  "standard.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;
}


#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:	2.15
Committed:	Thu Jun 5 19:29:34 2003 UTC (20 years, 10 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.14:	+2 -4 lines
Log Message:	Macros for setting binary file mode. Replacing MSDOS by _WIN32.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.15	static const char RCSid[] = "$Id: oconv.c,v 2.14 2003/03/12 17:26:58 greg 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
12			#include "octree.h"
13
14			#include "object.h"
15
16			#include "otypes.h"
17
18	greg	2.4	#include "paths.h"
19	greg	1.14
20	greg	2.4	#define OMARGIN (10FTINY) / margin around global cube */
21	greg	1.2
22	greg	2.11	#define MAXOBJFIL 127 /* maximum number of scene files */
23	greg	1.1
24			char progname; / argv[0] */
25
26			int nowarn = 0; /* supress warnings? */
27
28	greg	2.14	int objlim = 6; /* # of objects before split */
29	greg	1.1
30	greg	2.14	int resolu = 16384; /* octree resolution limit */
31	greg	1.1
32			CUBE thescene = {EMPTY, {0.0, 0.0, 0.0}, 0.0}; /* our scene */
33
34			char ofname[MAXOBJFIL+1]; / object file names */
35			int nfiles = 0; /* number of object files */
36
37	greg	2.4	double mincusize; /* minimum cube size from resolu */
38	greg	1.1
39	greg	2.12	void (addobjnotify[])() = {NULL}; / new object notifier functions */
40	greg	1.7
41	greg	1.1
42			main(argc, argv) /* convert object files to an octree */
43			int argc;
44	greg	2.10	char *argv[];
45	greg	1.1	{
46			FVECT bbmin, bbmax;
47			char *infile = NULL;
48	greg	2.6	int inpfrozen = 0;
49	greg	1.1	int outflags = IO_ALL;
50	greg	2.4	OBJECT startobj;
51	greg	1.1	int i;
52
53	greg	2.5	progname = argv[0] = fixargv0(argv[0]);
54	greg	1.1
55	greg	1.12	initotypes();
56
57	greg	1.5	for (i = 1; i < argc && argv[i][0] == '-'; i++)
58	greg	1.1	switch (argv[i][1]) {
59	greg	1.5	case '\0': /* scene from stdin */
60			goto breakopt;
61	greg	1.1	case 'i': /* input octree */
62			infile = argv[++i];
63			break;
64			case 'b': /* bounding cube */
65	greg	1.2	thescene.cuorg[0] = atof(argv[++i]) - OMARGIN;
66			thescene.cuorg[1] = atof(argv[++i]) - OMARGIN;
67			thescene.cuorg[2] = atof(argv[++i]) - OMARGIN;
68			thescene.cusize = atof(argv[++i]) + 2*OMARGIN;
69	greg	1.1	break;
70			case 'n': /* set limit */
71			objlim = atoi(argv[++i]);
72			break;
73			case 'r': /* resolution limit */
74			resolu = atoi(argv[++i]);
75			break;
76			case 'f': /* freeze octree */
77			outflags &= ~IO_FILES;
78			break;
79			case 'w': /* supress warnings */
80			nowarn = 1;
81			break;
82			default:
83			sprintf(errmsg, "unknown option: '%s'", argv[i]);
84			error(USER, errmsg);
85			break;
86			}
87	greg	1.5	breakopt:
88	schorsch	2.15	SET_FILE_BINARY(stdout);
89	greg	1.1	if (infile != NULL) { /* get old octree & objects */
90			if (thescene.cusize > FTINY)
91			error(USER, "only one of '-b' or '-i'");
92			nfiles = readoct(infile, IO_ALL, &thescene, ofname);
93	greg	2.6	if (nfiles == 0)
94			inpfrozen++;
95	greg	2.8	} else
96			newheader("RADIANCE", stdout); /* new binary file header */
97	greg	2.7	printargs(argc, argv, stdout);
98	greg	1.13	fputformat(OCTFMT, stdout);
99	greg	1.1	printf("\n");
100
101			startobj = nobjects; /* previous objects already converted */
102	greg	2.5
103	greg	1.4	for ( ; i < argc; i++) /* read new scene descriptions */
104			if (!strcmp(argv[i], "-")) { /* from stdin */
105			readobj(NULL);
106			outflags &= ~IO_FILES;
107			} else { /* from file */
108			if (nfiles >= MAXOBJFIL)
109			error(INTERNAL, "too many scene files");
110			readobj(ofname[nfiles++] = argv[i]);
111			}
112
113	greg	1.1	ofname[nfiles] = NULL;
114	greg	2.6
115			if (inpfrozen && outflags & IO_FILES) {
116			error(WARNING, "frozen octree");
117			outflags &= ~IO_FILES;
118			}
119	greg	1.1	/* find bounding box */
120			bbmin[0] = bbmin[1] = bbmin[2] = FHUGE;
121			bbmax[0] = bbmax[1] = bbmax[2] = -FHUGE;
122			for (i = startobj; i < nobjects; i++)
123			add2bbox(objptr(i), bbmin, bbmax);
124			/* set/check cube */
125			if (thescene.cusize == 0.0) {
126			if (bbmin[0] <= bbmax[0]) {
127			for (i = 0; i < 3; i++) {
128	greg	1.2	bbmin[i] -= OMARGIN;
129			bbmax[i] += OMARGIN;
130	greg	1.1	}
131			for (i = 0; i < 3; i++)
132			if (bbmax[i] - bbmin[i] > thescene.cusize)
133			thescene.cusize = bbmax[i] - bbmin[i];
134	greg	1.3	for (i = 0; i < 3; i++)
135			thescene.cuorg[i] =
136			(bbmax[i]+bbmin[i]-thescene.cusize)*.5;
137	greg	1.1	}
138			} else {
139			for (i = 0; i < 3; i++)
140			if (bbmin[i] < thescene.cuorg[i] \|\|
141			bbmax[i] > thescene.cuorg[i] + thescene.cusize)
142			error(USER, "boundary does not encompass scene");
143			}
144
145			mincusize = thescene.cusize / resolu - FTINY;
146	greg	2.5
147	greg	1.1	for (i = startobj; i < nobjects; i++) /* add new objects */
148			addobject(&thescene, i);
149	greg	2.5
150	greg	1.1	thescene.cutree = combine(thescene.cutree); /* optimize */
151
152			writeoct(outflags, &thescene, ofname); /* write structures to stdout */
153
154			quit(0);
155			}
156
157
158	greg	2.12	void
159	greg	1.1	quit(code) /* exit program */
160			int code;
161			{
162			exit(code);
163			}
164
165
166	greg	2.12	void
167	greg	1.1	cputs() /* interactive error */
168			{
169			/* referenced, but not used */
170			}
171
172
173	greg	2.12	void
174	greg	1.1	wputs(s) /* warning message */
175			char *s;
176			{
177			if (!nowarn)
178			eputs(s);
179			}
180
181
182	greg	2.12	void
183	greg	1.1	eputs(s) /* put string to stderr */
184			register char *s;
185			{
186	greg	1.9	static int inln = 0;
187	greg	1.1
188	greg	1.9	if (!inln++) {
189	greg	1.1	fputs(progname, stderr);
190			fputs(": ", stderr);
191			}
192			fputs(s, stderr);
193			if (*s && s[strlen(s)-1] == '\n')
194	greg	1.9	inln = 0;
195	greg	1.1	}
196
197
198	greg	2.4	#define bitop(f,i,op) (f[((i)>>3)] op (1<<((i)&7)))
199			#define tstbit(f,i) bitop(f,i,&)
200			#define setbit(f,i) bitop(f,i,\|=)
201			#define clrbit(f,i) bitop(f,i,&=~)
202			#define tglbit(f,i) bitop(f,i,^=)
203	greg	1.11
204
205	greg	1.1	addobject(cu, obj) /* add an object to a cube */
206			register CUBE *cu;
207	greg	2.4	OBJECT obj;
208	greg	1.1	{
209	greg	2.13	int inc;
210	greg	1.1
211	greg	2.13	inc = (*ofun[objptr(obj)->otype].funp)(objptr(obj), cu);
212	greg	1.1
213	greg	2.13	if (inc == O_MISS)
214	greg	1.1	return; /* no intersection */
215	greg	2.5
216	greg	1.1	if (istree(cu->cutree)) {
217	greg	2.13	CUBE cukid; /* do children */
218			int i, j;
219	greg	1.1	cukid.cusize = cu->cusize * 0.5;
220			for (i = 0; i < 8; i++) {
221			cukid.cutree = octkid(cu->cutree, i);
222			for (j = 0; j < 3; j++) {
223			cukid.cuorg[j] = cu->cuorg[j];
224			if ((1<<j) & i)
225			cukid.cuorg[j] += cukid.cusize;
226			}
227			addobject(&cukid, obj);
228			octkid(cu->cutree, i) = cukid.cutree;
229			}
230	greg	1.11	return;
231			}
232			if (isempty(cu->cutree)) {
233	greg	2.13	OBJECT oset[2]; /* singular set */
234	greg	1.1	oset[0] = 1; oset[1] = obj;
235			cu->cutree = fullnode(oset);
236	greg	1.11	return;
237			}
238			/* add to full node */
239	greg	2.13	add2full(cu, obj, inc);
240			}
241
242
243			add2full(cu, obj, inc) /* add object to full node */
244			register CUBE *cu;
245			OBJECT obj;
246			int inc;
247			{
248			OCTREE ot;
249			OBJECT oset[MAXSET+1];
250			CUBE cukid;
251			unsigned char inflg[(MAXSET+7)/8], volflg[(MAXSET+7)/8];
252			register int i, j;
253
254	greg	1.11	objset(oset, cu->cutree);
255			cukid.cusize = cu->cusize * 0.5;
256	greg	2.5
257	greg	2.13	if (inc==O_IN \|\| oset[0] < objlim \|\| cukid.cusize < mincusize) {
258	greg	1.11	/* add to set */
259			if (oset[0] >= MAXSET) {
260	greg	2.3	sprintf(errmsg, "set overflow in addobject (%s)",
261	greg	1.11	objptr(obj)->oname);
262			error(INTERNAL, errmsg);
263	greg	1.1	}
264	greg	1.11	insertelem(oset, obj);
265			cu->cutree = fullnode(oset);
266			return;
267	greg	1.1	}
268	greg	1.11	/* subdivide cube */
269			if ((ot = octalloc()) == EMPTY)
270			error(SYSTEM, "out of octree space");
271			/* mark volumes */
272			j = (oset[0]+7)>>3;
273			while (j--)
274			volflg[j] = inflg[j] = 0;
275			for (j = 1; j <= oset[0]; j++)
276			if (isvolume(objptr(oset[j])->otype)) {
277			setbit(volflg,j-1);
278			if ((*ofun[objptr(oset[j])->otype].funp)
279	greg	2.3	(objptr(oset[j]), cu) == O_IN)
280	greg	1.11	setbit(inflg,j-1);
281			}
282			/* assign subcubes */
283			for (i = 0; i < 8; i++) {
284			cukid.cutree = EMPTY;
285			for (j = 0; j < 3; j++) {
286			cukid.cuorg[j] = cu->cuorg[j];
287			if ((1<<j) & i)
288			cukid.cuorg[j] += cukid.cusize;
289			}
290			/* surfaces first */
291			for (j = 1; j <= oset[0]; j++)
292			if (!tstbit(volflg,j-1))
293			addobject(&cukid, oset[j]);
294			/* then this object */
295			addobject(&cukid, obj);
296	greg	2.3	/* then partial volumes */
297	greg	1.11	for (j = 1; j <= oset[0]; j++)
298			if (tstbit(volflg,j-1) &&
299			!tstbit(inflg,j-1))
300			addobject(&cukid, oset[j]);
301	greg	2.3	/* full volumes last */
302	greg	1.11	for (j = 1; j <= oset[0]; j++)
303			if (tstbit(inflg,j-1))
304			addobject(&cukid, oset[j]);
305			/* returned node */
306			octkid(ot, i) = cukid.cutree;
307			}
308			cu->cutree = ot;
309	greg	1.1	}