src/common/rglsrc.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 * Routines for handling OpenGL light sources
 */

/* ====================================================================
 * The Radiance Software License, Version 1.0
 *
 * Copyright (c) 1990 - 2002 The Regents of the University of California,
 * through Lawrence Berkeley National Laboratory.   All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *         notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *           if any, must include the following acknowledgment:
 *             "This product includes Radiance software
 *                 (http://radsite.lbl.gov/)
 *                 developed by the Lawrence Berkeley National Laboratory
 *               (http://www.lbl.gov/)."
 *       Alternately, this acknowledgment may appear in the software itself,
 *       if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
 *       and "The Regents of the University of California" must
 *       not be used to endorse or promote products derived from this
 *       software without prior written permission. For written
 *       permission, please contact [email protected].
 *
 * 5. Products derived from this software may not be called "Radiance",
 *       nor may "Radiance" appear in their name, without prior written
 *       permission of Lawrence Berkeley National Laboratory.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.   IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Lawrence Berkeley National Laboratory.   For more
 * information on Lawrence Berkeley National Laboratory, please see
 * <http://www.lbl.gov/>.
 */

#include "radogl.h"

double  expval = 0.;                    /* global exposure value */

COLOR   ambval = {0.2, 0.2, 0.2};       /* global ambient value */

int     dolights = MAXLIGHTS;           /* do how many more light sources? */

int     glightid[MAXLIGHTS] = {GL_LIGHT0, GL_LIGHT1, GL_LIGHT2,
                        GL_LIGHT3, GL_LIGHT4, GL_LIGHT5, GL_LIGHT6, GL_LIGHT7};

static int      lightlist;              /* light list id */

                                /* source types */
#define L_NONE          0
#define L_SOURCE        1
#define L_FLAT          2
#define L_SPHERE        3

static struct {
        int     type;           /* light type (0 if none) */
        MATREC  *m;             /* light material */
        FVECT   pos;            /* light position (or direction) */
        FVECT   norm;           /* flat source normal */
        double  area;           /* source area (or solid angle) */
} lightrec[MAXLIGHTS];  /* light source list */

static int      nlights;                /* number of defined lights */

static void     l_flatsrc(), l_sphsrc(), l_source();


void
lightinit()                     /* initialize lighting */
{
        GLfloat ambv[4];
        register int    i;

        if (!dolights)
                return;
        glPushAttrib(GL_LIGHTING_BIT);
        if (expval <= FTINY && bright(ambval) > FTINY)
                expval = 0.2/bright(ambval);
        ambv[0] = expval*colval(ambval,RED);
        ambv[1] = expval*colval(ambval,GRN);
        ambv[2] = expval*colval(ambval,BLU);
        ambv[3] = 1.;
        glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambv);
        glCallList(lightlist = newglist());
        rgl_checkerr("in lightinit");
        nlights = 0;
}


void
lightclean()                    /* clean up light source commands */
{
        if ((dolights += nlights) <= 0)
                return;
        glPopAttrib();
}


void
lightdefs()                     /* define light source list */
{
        register int    i;

        if (!nlights)
                return;
        glNewList(lightlist, GL_COMPILE);
        while (nlights--) {
                switch (lightrec[nlights].type) {
                case L_FLAT:
                        l_flatsrc(nlights);
                        break;
                case L_SPHERE:
                        l_sphsrc(nlights);
                        break;
                case L_SOURCE:
                        l_source(nlights);
                        break;
                default:
                        error(CONSISTENCY, "botched light type in lightdefs");
                }
                freemtl(lightrec[nlights].m);
                lightrec[nlights].type = L_NONE;
        }
        glEndList();
        rgl_checkerr("defining lights");
}


int
o_source(o)                     /* record a distant source */
register OBJREC *o;
{
        if (!dolights || !issrcmat((MATREC *)o->os))
                return(0);
        if (o->oargs.nfargs != 4)
                objerror(o, USER, "bad # real arguments");
                                                /* record type & material */
        lightrec[nlights].type = L_SOURCE;
        (lightrec[nlights].m = (MATREC *)o->os)->nlinks++;
                                                /* assign direction */
        VCOPY(lightrec[nlights].pos, o->oargs.farg);
                                                /* compute solid angle */
        if (o->oargs.farg[3] <= FTINY)
                objerror(o, USER, "zero size");
        lightrec[nlights].area = 2.*PI*(1. - cos(PI/180./2.*o->oargs.farg[3]));
        nlights++; dolights--;
        return(1);
}


int
doflatsrc(m, pos, norm, area)   /* record a flat source */
MATREC  *m;
FVECT   pos, norm;
double  area;
{
        if (!dolights || !issrcmat(m) || area <= FTINY)
                return(0);
                                                /* record type & material */
        lightrec[nlights].type = L_FLAT;
        (lightrec[nlights].m = m)->nlinks++;
                                                /* assign geometry */
        VCOPY(lightrec[nlights].pos, pos);
        VCOPY(lightrec[nlights].norm, norm);
        lightrec[nlights].area = area;
        nlights++; dolights--;
        return(1);
}


int
dosphsrc(m, pos, area)          /* record a spherical source */
register MATREC *m;
FVECT   pos;
double  area;
{
        if (!dolights || !issrcmat(m) || area <= FTINY)
                return(0);
                                                /* record type & material */
        lightrec[nlights].type = L_SPHERE;
        (lightrec[nlights].m = m)->nlinks++;
                                                /* assign geometry */
        VCOPY(lightrec[nlights].pos, pos);
        lightrec[nlights].area = area;
        nlights++; dolights--;
        return(1);
}


static void
l_source(n)                     /* convert a distant source */
register int    n;
{
        register MATREC *m = lightrec[n].m;
        int     thislight = glightid[n];
        GLfloat vec[4];
                                                /* assign direction */
        VCOPY(vec, lightrec[n].pos);
        vec[3] = 0.;
        glLightfv(thislight, GL_POSITION, vec);
                                                /* assign color */
        vec[0] = expval*lightrec[n].area*colval(m->u.l.emission,RED);
        vec[1] = expval*lightrec[n].area*colval(m->u.l.emission,GRN);
        vec[2] = expval*lightrec[n].area*colval(m->u.l.emission,BLU);
        vec[3] = 1.;
        glLightfv(thislight, GL_SPECULAR, vec);
        glLightfv(thislight, GL_DIFFUSE, vec);
        vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.;
        glLightfv(thislight, GL_AMBIENT, vec);
        glEnable(thislight);
}


static void
l_flatsrc(n)                    /* convert a flat source */
register int    n;
{
        GLfloat vec[4];
        register MATREC *m = lightrec[n].m;
        int     thislight = glightid[n];
                                                /* assign position */
        VCOPY(vec, lightrec[n].pos); vec[3] = 1.;
        glLightfv(thislight, GL_POSITION, vec);
                                                /* assign color */
        vec[0] = expval*lightrec[n].area*colval(m->u.l.emission,RED);
        vec[1] = expval*lightrec[n].area*colval(m->u.l.emission,GRN);
        vec[2] = expval*lightrec[n].area*colval(m->u.l.emission,BLU);
        vec[3] = 1.;
        glLightfv(thislight, GL_SPECULAR, vec);
        glLightfv(thislight, GL_DIFFUSE, vec);
        vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.;
        glLightfv(thislight, GL_AMBIENT, vec);
        glLightf(thislight, GL_SPOT_EXPONENT, 1.);
        glLightf(thislight, GL_CONSTANT_ATTENUATION, 0.);
        glLightf(thislight, GL_LINEAR_ATTENUATION, 0.);
        glLightf(thislight, GL_QUADRATIC_ATTENUATION, 1.);
        if (m->type == MAT_SPOT && m->u.l.spotang < 90.) {
                glLightf(thislight, GL_SPOT_CUTOFF, m->u.l.spotang);
                glLightfv(thislight, GL_SPOT_DIRECTION, m->u.l.spotdir);
        } else {
                glLightf(thislight, GL_SPOT_CUTOFF, 90.);
                VCOPY(vec, lightrec[n].norm);
                glLightfv(thislight, GL_SPOT_DIRECTION, vec);
        }
        glEnable(thislight);
}


static void
l_sphsrc(n)                     /* convert a spherical source */
register int    n;
{
        GLfloat vec[4];
        register MATREC *m = lightrec[n].m;
        int     thislight = glightid[n];
                                                /* assign position */
        VCOPY(vec, lightrec[n].pos); vec[3] = 1.;
        glLightfv(thislight, GL_POSITION, vec);
                                                /* assign color */
        vec[0] = expval*lightrec[n].area*colval(m->u.l.emission,RED);
        vec[1] = expval*lightrec[n].area*colval(m->u.l.emission,GRN);
        vec[2] = expval*lightrec[n].area*colval(m->u.l.emission,BLU);
        vec[3] = 1.;
        glLightfv(thislight, GL_SPECULAR, vec);
        glLightfv(thislight, GL_DIFFUSE, vec);
        vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.;
        glLightfv(thislight, GL_AMBIENT, vec);
        glLightf(thislight, GL_SPOT_EXPONENT, 0.);
        glLightf(thislight, GL_CONSTANT_ATTENUATION, 0.);
        glLightf(thislight, GL_LINEAR_ATTENUATION, 0.);
        glLightf(thislight, GL_QUADRATIC_ATTENUATION, 1.);
        if (m->type == MAT_SPOT && m->u.l.spotang <= 90.) {
                glLightf(thislight, GL_SPOT_CUTOFF, m->u.l.spotang);
                glLightfv(thislight, GL_SPOT_DIRECTION, m->u.l.spotdir);
        } else
                glLightf(thislight, GL_SPOT_CUTOFF, 180.);
        glEnable(thislight);
}
Revision:	3.3
Committed:	Sat Feb 22 02:07:22 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 3.2:	+66 -8 lines
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	Content
1	#ifndef lint
2	static const char RCSid[] = "$Id$";
3	#endif
4	/*
5	* Routines for handling OpenGL light sources
6	*/
7
8	/* ====================================================================
9	* The Radiance Software License, Version 1.0
10	*
11	* Copyright (c) 1990 - 2002 The Regents of the University of California,
12	* through Lawrence Berkeley National Laboratory. All rights reserved.
13	*
14	* Redistribution and use in source and binary forms, with or without
15	* modification, are permitted provided that the following conditions
16	* are met:
17	*
18	* 1. Redistributions of source code must retain the above copyright
19	* notice, this list of conditions and the following disclaimer.
20	*
21	* 2. Redistributions in binary form must reproduce the above copyright
22	* notice, this list of conditions and the following disclaimer in
23	* the documentation and/or other materials provided with the
24	* distribution.
25	*
26	* 3. The end-user documentation included with the redistribution,
27	* if any, must include the following acknowledgment:
28	* "This product includes Radiance software
29	* (http://radsite.lbl.gov/)
30	* developed by the Lawrence Berkeley National Laboratory
31	* (http://www.lbl.gov/)."
32	* Alternately, this acknowledgment may appear in the software itself,
33	* if and wherever such third-party acknowledgments normally appear.
34	*
35	* 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
36	* and "The Regents of the University of California" must
37	* not be used to endorse or promote products derived from this
38	* software without prior written permission. For written
39	* permission, please contact [email protected].
40	*
41	* 5. Products derived from this software may not be called "Radiance",
42	* nor may "Radiance" appear in their name, without prior written
43	* permission of Lawrence Berkeley National Laboratory.
44	*
45	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
46	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
48	* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
49	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
50	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
51	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
52	* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
53	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
54	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
55	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56	* SUCH DAMAGE.
57	* ====================================================================
58	*
59	* This software consists of voluntary contributions made by many
60	* individuals on behalf of Lawrence Berkeley National Laboratory. For more
61	* information on Lawrence Berkeley National Laboratory, please see
62	* <http://www.lbl.gov/>.
63	*/
64
65	#include "radogl.h"
66
67	double expval = 0.; /* global exposure value */
68
69	COLOR ambval = {0.2, 0.2, 0.2}; /* global ambient value */
70
71	int dolights = MAXLIGHTS; /* do how many more light sources? */
72
73	int glightid[MAXLIGHTS] = {GL_LIGHT0, GL_LIGHT1, GL_LIGHT2,
74	GL_LIGHT3, GL_LIGHT4, GL_LIGHT5, GL_LIGHT6, GL_LIGHT7};
75
76	static int lightlist; /* light list id */
77
78	/* source types */
79	#define L_NONE 0
80	#define L_SOURCE 1
81	#define L_FLAT 2
82	#define L_SPHERE 3
83
84	static struct {
85	int type; /* light type (0 if none) */
86	MATREC m; / light material */
87	FVECT pos; /* light position (or direction) */
88	FVECT norm; /* flat source normal */
89	double area; /* source area (or solid angle) */
90	} lightrec[MAXLIGHTS]; /* light source list */
91
92	static int nlights; /* number of defined lights */
93
94	static void l_flatsrc(), l_sphsrc(), l_source();
95
96
97	void
98	lightinit() /* initialize lighting */
99	{
100	GLfloat ambv[4];
101	register int i;
102
103	if (!dolights)
104	return;
105	glPushAttrib(GL_LIGHTING_BIT);
106	if (expval <= FTINY && bright(ambval) > FTINY)
107	expval = 0.2/bright(ambval);
108	ambv[0] = expval*colval(ambval,RED);
109	ambv[1] = expval*colval(ambval,GRN);
110	ambv[2] = expval*colval(ambval,BLU);
111	ambv[3] = 1.;
112	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambv);
113	glCallList(lightlist = newglist());
114	rgl_checkerr("in lightinit");
115	nlights = 0;
116	}
117
118
119	void
120	lightclean() /* clean up light source commands */
121	{
122	if ((dolights += nlights) <= 0)
123	return;
124	glPopAttrib();
125	}
126
127
128	void
129	lightdefs() /* define light source list */
130	{
131	register int i;
132
133	if (!nlights)
134	return;
135	glNewList(lightlist, GL_COMPILE);
136	while (nlights--) {
137	switch (lightrec[nlights].type) {
138	case L_FLAT:
139	l_flatsrc(nlights);
140	break;
141	case L_SPHERE:
142	l_sphsrc(nlights);
143	break;
144	case L_SOURCE:
145	l_source(nlights);
146	break;
147	default:
148	error(CONSISTENCY, "botched light type in lightdefs");
149	}
150	freemtl(lightrec[nlights].m);
151	lightrec[nlights].type = L_NONE;
152	}
153	glEndList();
154	rgl_checkerr("defining lights");
155	}
156
157
158	int
159	o_source(o) /* record a distant source */
160	register OBJREC *o;
161	{
162	if (!dolights \|\| !issrcmat((MATREC *)o->os))
163	return(0);
164	if (o->oargs.nfargs != 4)
165	objerror(o, USER, "bad # real arguments");
166	/* record type & material */
167	lightrec[nlights].type = L_SOURCE;
168	(lightrec[nlights].m = (MATREC *)o->os)->nlinks++;
169	/* assign direction */
170	VCOPY(lightrec[nlights].pos, o->oargs.farg);
171	/* compute solid angle */
172	if (o->oargs.farg[3] <= FTINY)
173	objerror(o, USER, "zero size");
174	lightrec[nlights].area = 2.PI(1. - cos(PI/180./2.*o->oargs.farg[3]));
175	nlights++; dolights--;
176	return(1);
177	}
178
179
180	int
181	doflatsrc(m, pos, norm, area) /* record a flat source */
182	MATREC *m;
183	FVECT pos, norm;
184	double area;
185	{
186	if (!dolights \|\| !issrcmat(m) \|\| area <= FTINY)
187	return(0);
188	/* record type & material */
189	lightrec[nlights].type = L_FLAT;
190	(lightrec[nlights].m = m)->nlinks++;
191	/* assign geometry */
192	VCOPY(lightrec[nlights].pos, pos);
193	VCOPY(lightrec[nlights].norm, norm);
194	lightrec[nlights].area = area;
195	nlights++; dolights--;
196	return(1);
197	}
198
199
200	int
201	dosphsrc(m, pos, area) /* record a spherical source */
202	register MATREC *m;
203	FVECT pos;
204	double area;
205	{
206	if (!dolights \|\| !issrcmat(m) \|\| area <= FTINY)
207	return(0);
208	/* record type & material */
209	lightrec[nlights].type = L_SPHERE;
210	(lightrec[nlights].m = m)->nlinks++;
211	/* assign geometry */
212	VCOPY(lightrec[nlights].pos, pos);
213	lightrec[nlights].area = area;
214	nlights++; dolights--;
215	return(1);
216	}
217
218
219	static void
220	l_source(n) /* convert a distant source */
221	register int n;
222	{
223	register MATREC *m = lightrec[n].m;
224	int thislight = glightid[n];
225	GLfloat vec[4];
226	/* assign direction */
227	VCOPY(vec, lightrec[n].pos);
228	vec[3] = 0.;
229	glLightfv(thislight, GL_POSITION, vec);
230	/* assign color */
231	vec[0] = expvallightrec[n].areacolval(m->u.l.emission,RED);
232	vec[1] = expvallightrec[n].areacolval(m->u.l.emission,GRN);
233	vec[2] = expvallightrec[n].areacolval(m->u.l.emission,BLU);
234	vec[3] = 1.;
235	glLightfv(thislight, GL_SPECULAR, vec);
236	glLightfv(thislight, GL_DIFFUSE, vec);
237	vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.;
238	glLightfv(thislight, GL_AMBIENT, vec);
239	glEnable(thislight);
240	}
241
242
243	static void
244	l_flatsrc(n) /* convert a flat source */
245	register int n;
246	{
247	GLfloat vec[4];
248	register MATREC *m = lightrec[n].m;
249	int thislight = glightid[n];
250	/* assign position */
251	VCOPY(vec, lightrec[n].pos); vec[3] = 1.;
252	glLightfv(thislight, GL_POSITION, vec);
253	/* assign color */
254	vec[0] = expvallightrec[n].areacolval(m->u.l.emission,RED);
255	vec[1] = expvallightrec[n].areacolval(m->u.l.emission,GRN);
256	vec[2] = expvallightrec[n].areacolval(m->u.l.emission,BLU);
257	vec[3] = 1.;
258	glLightfv(thislight, GL_SPECULAR, vec);
259	glLightfv(thislight, GL_DIFFUSE, vec);
260	vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.;
261	glLightfv(thislight, GL_AMBIENT, vec);
262	glLightf(thislight, GL_SPOT_EXPONENT, 1.);
263	glLightf(thislight, GL_CONSTANT_ATTENUATION, 0.);
264	glLightf(thislight, GL_LINEAR_ATTENUATION, 0.);
265	glLightf(thislight, GL_QUADRATIC_ATTENUATION, 1.);
266	if (m->type == MAT_SPOT && m->u.l.spotang < 90.) {
267	glLightf(thislight, GL_SPOT_CUTOFF, m->u.l.spotang);
268	glLightfv(thislight, GL_SPOT_DIRECTION, m->u.l.spotdir);
269	} else {
270	glLightf(thislight, GL_SPOT_CUTOFF, 90.);
271	VCOPY(vec, lightrec[n].norm);
272	glLightfv(thislight, GL_SPOT_DIRECTION, vec);
273	}
274	glEnable(thislight);
275	}
276
277
278	static void
279	l_sphsrc(n) /* convert a spherical source */
280	register int n;
281	{
282	GLfloat vec[4];
283	register MATREC *m = lightrec[n].m;
284	int thislight = glightid[n];
285	/* assign position */
286	VCOPY(vec, lightrec[n].pos); vec[3] = 1.;
287	glLightfv(thislight, GL_POSITION, vec);
288	/* assign color */
289	vec[0] = expvallightrec[n].areacolval(m->u.l.emission,RED);
290	vec[1] = expvallightrec[n].areacolval(m->u.l.emission,GRN);
291	vec[2] = expvallightrec[n].areacolval(m->u.l.emission,BLU);
292	vec[3] = 1.;
293	glLightfv(thislight, GL_SPECULAR, vec);
294	glLightfv(thislight, GL_DIFFUSE, vec);
295	vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.;
296	glLightfv(thislight, GL_AMBIENT, vec);
297	glLightf(thislight, GL_SPOT_EXPONENT, 0.);
298	glLightf(thislight, GL_CONSTANT_ATTENUATION, 0.);
299	glLightf(thislight, GL_LINEAR_ATTENUATION, 0.);
300	glLightf(thislight, GL_QUADRATIC_ATTENUATION, 1.);
301	if (m->type == MAT_SPOT && m->u.l.spotang <= 90.) {
302	glLightf(thislight, GL_SPOT_CUTOFF, m->u.l.spotang);
303	glLightfv(thislight, GL_SPOT_DIRECTION, m->u.l.spotdir);
304	} else
305	glLightf(thislight, GL_SPOT_CUTOFF, 180.);
306	glEnable(thislight);
307	}