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Comparing ray/src/rt/source.h (file contents):
Revision 2.5 by greg, Sat Feb 22 02:07:29 2003 UTC vs.
Revision 2.27 by greg, Sat Jan 18 03:49:00 2025 UTC

# Line 1 | Line 1
1 < /* RCSid: $Id$ */
1 > /* RCSid $Id$ */
2   /*
3   *  source.h - header file for ray tracing sources.
4   *
5   *  Include after ray.h
6   */
7 + #ifndef _RAD_SOURCE_H_
8 + #define _RAD_SOURCE_H_
9  
10 < /* ====================================================================
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 < */
10 > #include <string.h>
11  
12 + #ifdef __cplusplus
13 + extern "C" {
14 + #endif
15 +
16 + #ifndef  AIMREQT
17   #define  AIMREQT        100             /* required aim success/failure */
18 + #endif
19 + #ifndef  SHADCACHE
20 + #define  SHADCACHE      20              /* shadow cache resolution */
21 + #endif
22 + #ifndef  MINSHADCNT
23 + #define  MINSHADCNT     2               /* test at least this many shadows */
24 + #endif
25  
26   #define  SDISTANT       01              /* source distant flag */
27   #define  SSKIP          02              /* source skip flag */
# Line 70 | Line 29
29   #define  SSPOT          010             /* source spotlight flag */
30   #define  SVIRTUAL       020             /* source virtual flag */
31   #define  SFLAT          040             /* source flat flag */
32 < #define  SCYL           0100            /* source cylindrical flag */
33 < #define  SFOLLOW        0200            /* source follow path flag */
32 > #define  SCIR           0100            /* source circular flag */
33 > #define  SCYL           0200            /* source cylindrical flag */
34 > #define  SFOLLOW        0400            /* source follow path flag */
35  
36   typedef struct {
37          FVECT  aim;             /* aim direction or center */
# Line 80 | Line 40 | typedef struct {
40   } SPOT;                 /* spotlight */
41  
42   typedef struct {
43 <        int  sflags;            /* source flags */
43 >        union {
44 >                struct {
45 >                        FVECT   u, v;           /* unit vectors */
46 >                }  f;                   /* flat source indexing */
47 >                struct {
48 >                        FVECT   o;              /* origin position */
49 >                        RREAL   e1, e2;         /* 1/extent */
50 >                        int     ax;             /* major direction */
51 >                }  d;                   /* distant source indexing */
52 >        }  p;                   /* indexing parameters */
53 >        OBJECT  obs[1];         /* cache obstructors (extends struct) */
54 > }  OBSCACHE;            /* obstructor cache */
55 >
56 > typedef struct {
57          FVECT  sloc;            /* direction or position of source */
58          FVECT  ss[3];           /* source dimension vectors, U, V, and W */
59          float  srad;            /* maximum source radius */
60          float  ss2;             /* solid angle or projected area */
61 +        OBJREC  *so;            /* source destination object */
62          struct {
63                  float  prox;            /* proximity */
64                  SPOT  *s;               /* spot */
# Line 96 | Line 70 | typedef struct {
70                          int  sn;                /* next source to aim for */
71                  }  sv;                  /* virtual source */
72          } sa;                   /* source aiming information */
73 <        long  ntests, nhits;    /* shadow tests and hits */
74 <        OBJREC  *so;            /* source destination object */
73 >        unsigned long
74 >                ntests, nhits;  /* shadow tests and hits */
75 > #if  SHADCACHE
76 >        OBSCACHE  *obscache;    /* obstructor cache */
77 > #endif
78 >        int  sflags;            /* source flags */
79   }  SRCREC;              /* light source */
80  
81   #define MAXSPART        64              /* maximum partitions per source */
# Line 110 | Line 88 | typedef struct {
88   #define snorm           ss[SW]          /* normal vector for flat source */
89  
90   typedef struct {
91 +        double  dom;                            /* solid angle of partition */
92          int  sn;                                /* source number */
93          short  np;                              /* number of partitions */
94          short  sp;                              /* this partition number */
116 –        double  dom;                            /* solid angle of partition */
95          unsigned char  spt[MAXSPART/2];         /* source partitioning */
96   }  SRCINDEX;            /* source index structure */
97  
98   #define initsrcindex(s) ((s)->sn = (s)->sp = -1, (s)->np = 0)
99  
100 < #define clrpart(pt)     bzero((char *)(pt), MAXSPART/2)
100 > #define clrpart(pt)     memset((char *)(pt), '\0', MAXSPART/2)
101   #define setpart(pt,i,v) ((pt)[(i)>>2] |= (v)<<(((i)&3)<<1))
102   #define spart(pt,pi)    ((pt)[(pi)>>2] >> (((pi)&3)<<1) & 3)
103  
# Line 167 | Line 145 | extern int  nsources;                  /* the number of sources */
145   #define  getmaxdisk(c,o)        (*sfun[(o)->otype].of->getdisk)(c,o)
146   #define  setsource(s,o)         (*sfun[(o)->otype].of->setsrc)(s,o)
147  
170 – #ifdef NOPROTO
171 –
172 – extern void     marksources();
173 – extern void     freesources();
174 – extern int      srcray();
175 – extern void     srcvalue();
176 – extern int      sourcehit();
177 – extern void     direct();
178 – extern void     srcscatter();
179 – extern int      m_light();
180 – extern double   nextssamp();
181 – extern int      skipparts();
182 – extern void     nopart();
183 – extern void     cylpart();
184 – extern void     flatpart();
185 – extern double   scylform();
186 – extern void     initstypes();
187 – extern int      newsource();
188 – extern void     setflatss();
189 – extern void     fsetsrc();
190 – extern void     ssetsrc();
191 – extern void     sphsetsrc();
192 – extern void     rsetsrc();
193 – extern void     cylsetsrc();
194 – extern SPOT     *makespot();
195 – extern int      spotout();
196 – extern double   fgetmaxdisk();
197 – extern double   rgetmaxdisk();
198 – extern double   fgetplaneq();
199 – extern double   rgetplaneq();
200 – extern int      commonspot();
201 – extern int      commonbeam();
202 – extern int      checkspot();
203 – extern double   spotdisk();
204 – extern double   beamdisk();
205 – extern double   intercircle();
206 – extern void     markvirtuals();
207 – extern void     addvirtuals();
208 – extern void     vproject();
209 – extern OBJREC   *vsmaterial();
210 – extern int      makevsrc();
211 – extern double   getdisk();
212 – extern int      vstestvis();
213 – extern void     virtverb();
214 –
215 – #else
148                                          /* defined in source.c */
149   extern void     marksources(void);
150 + extern void     distantsources(void);
151   extern void     freesources(void);
152   extern int      srcray(RAY *sr, RAY *r, SRCINDEX *si);
153   extern void     srcvalue(RAY *r);
154   extern int      sourcehit(RAY *r);
155 < extern void     direct(RAY *r, void (*f)(), char *p);
155 > typedef void srcdirf_t(SCOLOR cv, void *np, FVECT ldir, double omega);
156 > extern void     direct(RAY *r, srcdirf_t *f, void *p);
157   extern void     srcscatter(RAY *r);
158   extern int      m_light(OBJREC *m, RAY *r);
159 +                                        /* defined in srcobstr.c */
160 + extern void     initobscache(int sn);
161 + extern int      srcblocker(RAY *r);
162 + extern int      srcblocked(RAY *r);
163 + extern void     freeobscache(SRCREC *s);
164 + extern void     markclip(OBJREC *m);
165                                          /* defined in srcsamp.c */
166 + extern int      srcskip(int sn, RAY *r);
167   extern double   nextssamp(RAY *r, SRCINDEX *si);
168   extern int      skipparts(int ct[3], int sz[3], int pp[2], unsigned char *pt);
169   extern void     nopart(SRCINDEX *si, RAY *r);
170   extern void     cylpart(SRCINDEX *si, RAY *r);
171   extern void     flatpart(SRCINDEX *si, RAY *r);
172   extern double   scylform(int sn, FVECT dir);
173 +                                        /* defined in srcskipload.c */
174 + extern int      sskip_dim[2];           /* source skip image size */
175 + extern int      srcskip_open(char *bmpspec, char *scorrimg);
176 + extern int      srcskip_getrow(int row, int *sndx, float *scorr);
177 + extern int      *srcskip_ndxmap(void);
178 + extern float    *srcskip_corrmap(void);
179 + extern void     srcskip_close(void);
180 + extern void     srcskip_free_maps(void);
181                                          /* defined in srcsupp.c */
182   extern void     initstypes(void);
183   extern int      newsource(void);
# Line 261 | Line 210 | extern double  getdisk(FVECT oc, OBJREC *op, int sn);
210   extern int      vstestvis(int f, OBJREC *o, FVECT oc, double or2, int sn);
211   extern void     virtverb(int sn, FILE *fp);
212  
213 +
214 + #ifdef __cplusplus
215 + }
216   #endif
217 + #endif /* _RAD_SOURCE_H_ */
218 +

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