src/rt/p_data.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 *  p_data.c - routine for stored patterns.
 */

/* ====================================================================
 * 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  "ray.h"

#include  "data.h"

#include  "func.h"

/*
 *      A stored pattern can either be brightness or
 *  color data.  Brightness data is specified as:
 *
 *      modifier brightdata name
 *      4+ func dfname vfname v0 v1 .. xf
 *      0
 *      n A1 A2 ..
 *
 *  Color data is specified as:
 *
 *      modifier colordata name
 *      8+ rfunc gfunc bfunc rdfname gdfname bdfname vfname v0 v1 .. xf
 *      0
 *      n A1 A2 ..
 *
 *  Color picture data is specified as:
 *
 *      modifier colorpict name
 *      7+ rfunc gfunc bfunc pfname vfname vx vy xf
 *      0
 *      n A1 A2 ..
 *
 *  Vfname is the name of the file where the variable definitions
 *  can be found.  The list of real arguments can be accessed by
 *  definitions in the file.  The dfnames are the data file
 *  names.  The dimensions of the data files and the number
 *  of variables must match.  The funcs take a single argument
 *  for brightdata, and three for colordata and colorpict to produce
 *  interpolated values from the file.  The xf is a transformation
 *  to get from the original coordinates to the current coordinates.
 */


p_bdata(m, r)                   /* interpolate brightness data */
register OBJREC  *m;
RAY  *r;
{
        double  bval;
        double  pt[MAXDIM];
        DATARRAY  *dp;
        register MFUNC  *mf;
        register int  i;

        if (m->oargs.nsargs < 4)
                objerror(m, USER, "bad # arguments");
        dp = getdata(m->oargs.sarg[1]);
        i = (1 << dp->nd) - 1;
        mf = getfunc(m, 2, i<<3, 0);
        setfunc(m, r);
        errno = 0;
        for (i = dp->nd; i-- > 0; ) {
                pt[i] = evalue(mf->ep[i]);
                if (errno)
                        goto computerr;
        }
        bval = datavalue(dp, pt);
        errno = 0;
        bval = funvalue(m->oargs.sarg[0], 1, &bval);
        if (errno)
                goto computerr;
        scalecolor(r->pcol, bval);
        return(0);
computerr:
        objerror(m, WARNING, "compute error");
        return(0);
}


p_cdata(m, r)                   /* interpolate color data */
register OBJREC  *m;
RAY  *r;
{
        double  col[3];
        COLOR  cval;
        double  pt[MAXDIM];
        int  nv;
        DATARRAY  *dp;
        register MFUNC  *mf;
        register int  i;

        if (m->oargs.nsargs < 8)
                objerror(m, USER, "bad # arguments");
        dp = getdata(m->oargs.sarg[3]);
        i = (1 << (nv = dp->nd)) - 1;
        mf = getfunc(m, 6, i<<7, 0);
        setfunc(m, r);
        errno = 0;
        for (i = 0; i < nv; i++) {
                pt[i] = evalue(mf->ep[i]);
                if (errno)
                        goto computerr;
        }
        col[0] = datavalue(dp, pt);
        for (i = 1; i < 3; i++) {
                dp = getdata(m->oargs.sarg[i+3]);
                if (dp->nd != nv)
                        objerror(m, USER, "dimension error");
                col[i] = datavalue(dp, pt);
        }
        errno = 0;
        for (i = 0; i < 3; i++)
                if (fundefined(m->oargs.sarg[i]) < 3)
                        colval(cval,i) = funvalue(m->oargs.sarg[i], 1, col+i);
                else
                        colval(cval,i) = funvalue(m->oargs.sarg[i], 3, col);
        if (errno)
                goto computerr;
        multcolor(r->pcol, cval);
        return(0);
computerr:
        objerror(m, WARNING, "compute error");
        return(0);
}


p_pdata(m, r)                   /* interpolate picture data */
register OBJREC  *m;
RAY  *r;
{
        double  col[3];
        COLOR  cval;
        double  pt[2];
        DATARRAY  *dp;
        register MFUNC  *mf;
        register int  i;

        if (m->oargs.nsargs < 7)
                objerror(m, USER, "bad # arguments");
        mf = getfunc(m, 4, 0x3<<5, 0);
        setfunc(m, r);
        errno = 0;
        pt[1] = evalue(mf->ep[0]);      /* y major ordering */
        pt[0] = evalue(mf->ep[1]);
        if (errno)
                goto computerr;
        dp = getpict(m->oargs.sarg[3]);
        for (i = 0; i < 3; i++)
                col[i] = datavalue(dp+i, pt);
        errno = 0;
        for (i = 0; i < 3; i++)
                if (fundefined(m->oargs.sarg[i]) < 3)
                        colval(cval,i) = funvalue(m->oargs.sarg[i], 1, col+i);
                else
                        colval(cval,i) = funvalue(m->oargs.sarg[i], 3, col);
        if (errno)
                goto computerr;
        multcolor(r->pcol, cval);
        return(0);

computerr:
        objerror(m, WARNING, "compute error");
        return(0);
}
Revision:	2.5
Committed:	Sat Feb 22 02:07:29 2003 UTC (22 years, 8 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.4:	+57 -5 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
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	2.5	static const char RCSid[] = "$Id$";
3	greg	1.1	#endif
4			/*
5			* p_data.c - routine for stored patterns.
6	greg	2.5	*/
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	greg	1.1	*
59	greg	2.5	* 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	greg	1.1	*/
64
65			#include "ray.h"
66
67			#include "data.h"
68
69	greg	2.2	#include "func.h"
70
71	greg	1.1	/*
72			* A stored pattern can either be brightness or
73			* color data. Brightness data is specified as:
74			*
75			* modifier brightdata name
76			* 4+ func dfname vfname v0 v1 .. xf
77			* 0
78			* n A1 A2 ..
79			*
80			* Color data is specified as:
81			*
82			* modifier colordata name
83			* 8+ rfunc gfunc bfunc rdfname gdfname bdfname vfname v0 v1 .. xf
84			* 0
85			* n A1 A2 ..
86			*
87			* Color picture data is specified as:
88			*
89			* modifier colorpict name
90			* 7+ rfunc gfunc bfunc pfname vfname vx vy xf
91			* 0
92			* n A1 A2 ..
93			*
94			* Vfname is the name of the file where the variable definitions
95			* can be found. The list of real arguments can be accessed by
96			* definitions in the file. The dfnames are the data file
97			* names. The dimensions of the data files and the number
98			* of variables must match. The funcs take a single argument
99			* for brightdata, and three for colordata and colorpict to produce
100			* interpolated values from the file. The xf is a transformation
101			* to get from the original coordinates to the current coordinates.
102			*/
103
104
105			p_bdata(m, r) /* interpolate brightness data */
106			register OBJREC *m;
107			RAY *r;
108			{
109			double bval;
110			double pt[MAXDIM];
111			DATARRAY *dp;
112	greg	2.2	register MFUNC *mf;
113			register int i;
114	greg	1.1
115			if (m->oargs.nsargs < 4)
116			objerror(m, USER, "bad # arguments");
117	greg	2.2	dp = getdata(m->oargs.sarg[1]);
118			i = (1 << dp->nd) - 1;
119			mf = getfunc(m, 2, i<<3, 0);
120			setfunc(m, r);
121	greg	1.2	errno = 0;
122	greg	2.2	for (i = dp->nd; i-- > 0; ) {
123			pt[i] = evalue(mf->ep[i]);
124			if (errno)
125			goto computerr;
126	greg	1.1	}
127			bval = datavalue(dp, pt);
128			errno = 0;
129	greg	2.2	bval = funvalue(m->oargs.sarg[0], 1, &bval);
130	greg	1.1	if (errno)
131			goto computerr;
132			scalecolor(r->pcol, bval);
133	greg	2.4	return(0);
134	greg	1.1	computerr:
135			objerror(m, WARNING, "compute error");
136	greg	2.4	return(0);
137	greg	1.1	}
138
139
140			p_cdata(m, r) /* interpolate color data */
141			register OBJREC *m;
142			RAY *r;
143			{
144			double col[3];
145			COLOR cval;
146			double pt[MAXDIM];
147	greg	2.2	int nv;
148	greg	1.1	DATARRAY *dp;
149	greg	2.2	register MFUNC *mf;
150			register int i;
151	greg	1.1
152			if (m->oargs.nsargs < 8)
153			objerror(m, USER, "bad # arguments");
154	greg	2.2	dp = getdata(m->oargs.sarg[3]);
155			i = (1 << (nv = dp->nd)) - 1;
156			mf = getfunc(m, 6, i<<7, 0);
157			setfunc(m, r);
158			errno = 0;
159			for (i = 0; i < nv; i++) {
160			pt[i] = evalue(mf->ep[i]);
161	greg	1.1	if (errno)
162			goto computerr;
163			}
164	greg	2.2	col[0] = datavalue(dp, pt);
165			for (i = 1; i < 3; i++) {
166			dp = getdata(m->oargs.sarg[i+3]);
167	greg	1.1	if (dp->nd != nv)
168	greg	2.2	objerror(m, USER, "dimension error");
169	greg	1.1	col[i] = datavalue(dp, pt);
170			}
171			errno = 0;
172	greg	2.3	for (i = 0; i < 3; i++)
173			if (fundefined(m->oargs.sarg[i]) < 3)
174			colval(cval,i) = funvalue(m->oargs.sarg[i], 1, col+i);
175			else
176			colval(cval,i) = funvalue(m->oargs.sarg[i], 3, col);
177	greg	1.1	if (errno)
178			goto computerr;
179			multcolor(r->pcol, cval);
180	greg	2.4	return(0);
181	greg	1.1	computerr:
182			objerror(m, WARNING, "compute error");
183	greg	2.4	return(0);
184	greg	1.1	}
185
186
187			p_pdata(m, r) /* interpolate picture data */
188			register OBJREC *m;
189			RAY *r;
190			{
191			double col[3];
192			COLOR cval;
193			double pt[2];
194			DATARRAY *dp;
195	greg	2.2	register MFUNC *mf;
196			register int i;
197	greg	1.1
198			if (m->oargs.nsargs < 7)
199			objerror(m, USER, "bad # arguments");
200	greg	2.2	mf = getfunc(m, 4, 0x3<<5, 0);
201			setfunc(m, r);
202	greg	1.4	errno = 0;
203	greg	2.2	pt[1] = evalue(mf->ep[0]); /* y major ordering */
204			pt[0] = evalue(mf->ep[1]);
205	greg	1.4	if (errno)
206			goto computerr;
207	greg	2.2	dp = getpict(m->oargs.sarg[3]);
208	greg	1.1	for (i = 0; i < 3; i++)
209			col[i] = datavalue(dp+i, pt);
210			errno = 0;
211	greg	2.3	for (i = 0; i < 3; i++)
212			if (fundefined(m->oargs.sarg[i]) < 3)
213			colval(cval,i) = funvalue(m->oargs.sarg[i], 1, col+i);
214			else
215			colval(cval,i) = funvalue(m->oargs.sarg[i], 3, col);
216	greg	1.1	if (errno)
217			goto computerr;
218			multcolor(r->pcol, cval);
219	greg	2.4	return(0);
220	greg	1.1
221			computerr:
222			objerror(m, WARNING, "compute error");
223	greg	2.4	return(0);
224	greg	1.1	}