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root/radiance/ray/src/hd/sm.h
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Comparing ray/src/hd/sm.h (file contents):
Revision 3.2 by gwlarson, Fri Sep 11 11:52:25 1998 UTC vs.
Revision 3.9 by gwlarson, Fri Mar 5 16:33:17 1999 UTC

# Line 10 | Line 10
10   #define _SM_H_
11  
12   #include "rhd_sample.h"
13 < #include "sm_stree.h"
13 > #define NEWSETS
14  
15  
16   #ifndef TRUE
# Line 18 | Line 18
18   #define FALSE 0
19   #endif
20  
21 – #define P_REPLACE_EPS 0.5
22 – #define SQRT3_2 0.8660254
21  
22 < #define MAX_EDGES 200
22 > #define ON_V 1
23 > #define ON_P 2
24 > #define ON_E 3
25 > #define IN_T 4
26  
27 < #define SM_INVALID  -1
28 < #define SM_DEFAULT   0
29 < #define SM_EXTRA_POINTS 5
27 > #define S_REPLACE_EPS 0.04      /* if (distance on sphere between sample
28 >                                     and a base point) < S_REPLACE_EPS,
29 >                                     replace base:
30 >                                     */
31 > #define S_REPLACE_SCALE (5.*5.)   /* if (distance to new point squared) is
32 >                                     > (triangle edge length squared*
33 >                                     S_REPLACE_SCALE):for all edges/triangle
34 >                                     vertices: new point is puncture
35 >                                     point: dont add
36 >                                   */
37 > #define S_REPLACE_TRI 2e-8              /* .052 radians to the sixth power */
38 >
39 > #define SQRT3_2 0.8660254
40 >
41 > #define SM_DEFAULT 0
42 > #define SM_EXTRA_POINTS 162
43 > #define SM_BASE_TRIS 320
44   #define SM_EXTRA_VERTS  SM_EXTRA_POINTS
30 – #define SM_POINTSIZ     (3*sizeof(float)+ sizeof(int4))
31 – #define SM_POINT_SPACE SM_EXTRA_POINTS * SM_POINTSIZ
45  
46 < #define SM_INC_PERCENT 0.60
46 > #define SM_INC_PERCENT 0.60            /* If number of new triangles added
47 >                                          since last full redraw is >
48 >                                          (SM_INC_PERCENT * total triangles)
49 >                                          do full redraw instead of incremental
50 >                                          */
51 >
52   #define SM_VIEW_FRAC   0.1
53  
54 + #define  SM_ALL_LEVELS -1
55  
56 +
57   typedef int VERT;  /* One triangle that vertex belongs to- the rest
58                        are derived by traversing neighbors */
59  
# Line 41 | Line 61 | typedef struct _EDGE {
61      int verts[2];
62      int tris[2];
63   } EDGE;
64 +
65   #define E_NTH_VERT(e,i)  ((e>0)?Edges[(e)].verts[(i)]:Edges[-(e)].verts[(1-i)])
66   #define SET_E_NTH_VERT(e,i,v) if(e>0) Edges[(e)].verts[(i)]=(v); \
67                                 else Edges[-(e)].verts[(1-i)]=(v)
68   #define E_NTH_TRI(e,i)  ((e>0)?Edges[(e)].tris[(i)]:Edges[-(e)].tris[(1-i)])
69   #define SET_E_NTH_TRI(e,i,v) if(e>0) Edges[(e)].tris[(i)]=(v); \
70                                else Edges[-(e)].tris[(1-i)]=(v)
50 – #define eNew_edge() (((Ecnt) < MAX_EDGES)?(++Ecnt):SM_INVALID)
71   #define eClear_edges() (Ecnt = 0)
72  
73   #define FOR_ALL_EDGES(i) for((i)=1; (i) <= Ecnt; i++)
# Line 67 | Line 87 | typedef struct _TRI {
87   #define T_NTH_V(t,i)  ((t)->verts[(i)])
88   #define T_WHICH_V(t,i)     \
89           (T_NTH_V(t,0)==(i)?0:T_NTH_V(t,1)==(i)?1:T_NTH_V(t,2)==(i)?2:-1)
90 < #define T_NEXT_FREE(t) ((t)->verts[0])
91 < #define T_VALID_FLAG(t) ((t)->verts[1])
90 > #define T_NEXT_FREE(t) ((t)->nbrs[0])
91 > #define T_NEXT_AVAILABLE(t) ((t)->nbrs[0])
92 > #define T_VALID_FLAG(t) ((t)->nbrs[1])
93   #define T_IS_VALID(t)  (T_VALID_FLAG(t)!=-1)
94   #define T_FLAGS 4
74 – #define T_FLAG_BYTES T_FLAGS/8.0
75 – #define T_TOTAL_FLAG_BYTES(c)  ((((c)+31)>>5)*sizeof(int4))
95  
96   typedef struct _SM {
97      FVECT view_center;    /* Canonical view center defining unit sphere */
98 <    RSAMP *samples;       /* Sample point information */
99 <    STREE locator;      /* spherical quadtree for point/triangle location */
98 >    SAMP *samples;        /* Sample point information */
99 >    STREE locator;        /* spherical quadtree for point/triangle location */
100      int max_tris;         /* Maximum number of triangles */
101 <    int tri_cnt;          /* Total number of tris ever alloc at one time*/
102 <    int num_tris;         /* Current number of sample (nonbase)triangles */
101 >    int num_tri;          /* Current number of triangles */
102 >    int sample_tris;      /* Current number of non-base triangles*/
103      int free_tris;        /* pointer to free_list */
104 +    int available_tris;   /* pointer to available_list */
105      int max_verts;        /* Maximum number of vertices in the mesh */
106      TRI *tris;            /* Pointer to list of triangle structs */
107      VERT *verts;          /* List of vertices */
108      int4 *flags[T_FLAGS]; /* Bit 0 set if active(in current frustum) */
109 <                             /* Bit 1 set if not rendered since created */
110 <                             /* Bit 2 set if base triangle */
91 <                             /* Bit 3 set used for LRU replacement */
92 <    char *base;           /* Allocated space */
109 >                          /* Bit 1 set if not rendered since created */
110 >                          /* Bit 2 set if base triangle */
111   }SM;
112  
113   #define T_ACTIVE_FLAG   0
114   #define T_NEW_FLAG      1
115   #define T_BASE_FLAG     2
116 < #define T_LRU_FLAG      3
116 > #define T_BG_FLAG       3
117  
118   #define SM_VIEW_CENTER(m)             ((m)->view_center)
119   #define SM_SAMP(m)                    ((m)->samples)
120   #define SM_LOCATOR(m)                 (&((m)->locator))
121   #define SM_MAX_TRIS(m)                ((m)->max_tris)
122 < #define SM_TRI_CNT(m)                 ((m)->tri_cnt)
123 < #define SM_NUM_TRIS(m)                 ((m)->num_tris)
122 > #define SM_NUM_TRI(m)                 ((m)->num_tri)
123 > #define SM_SAMPLE_TRIS(m)                 ((m)->sample_tris)
124   #define SM_FREE_TRIS(m)               ((m)->free_tris)
125 + #define SM_AVAILABLE_TRIS(m)          ((m)->available_tris)
126   #define SM_MAX_VERTS(m)               ((m)->max_verts)
127   #define SM_TRIS(m)                    ((m)->tris)
128   #define SM_VERTS(m)                   ((m)->verts)
129   #define SM_NTH_FLAGS(m,n)             ((m)->flags[(n)])
130 < #define SM_BASE(m)                    ((m)->base)
130 > #define SM_FLAGS(m)                   ((m)->flags)
131  
113 – #define TF_OFFSET(n)  ((n) >> 5)
114 – #define TF_BIT(n)     ((n) & 0x1f)
115 – #define SM_IS_NTH_T_FLAG(sm,n,f)  (SM_NTH_FLAGS(sm,f)[TF_OFFSET(n)] & (0x1 <<TF_BIT(n)))
116 – #define SM_SET_NTH_T_FLAG(sm,n,f) (SM_NTH_FLAGS(sm,f)[TF_OFFSET(n)] |= (0x1<<TF_BIT(n)))
117 – #define SM_CLEAR_NTH_T_FLAG(sm,n,f) (SM_NTH_FLAGS(sm,f)[TF_OFFSET(n)] &= ~(0x1<<TF_BIT(n)))
132  
133 + #define SM_IS_NTH_T_FLAG(sm,n,f)  IS_FLAG(SM_NTH_FLAGS(sm,f),n)
134 + #define SM_SET_NTH_T_FLAG(sm,n,f) SET_FLAG(SM_NTH_FLAGS(sm,f),n)
135 + #define SM_CLR_NTH_T_FLAG(sm,n,f) CLR_FLAG(SM_NTH_FLAGS(sm,f),n)
136 +
137   #define SM_IS_NTH_T_ACTIVE(sm,n)     SM_IS_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG)
138   #define SM_IS_NTH_T_BASE(sm,n)       SM_IS_NTH_T_FLAG(sm,n,T_BASE_FLAG)
139   #define SM_IS_NTH_T_NEW(sm,n)        SM_IS_NTH_T_FLAG(sm,n,T_NEW_FLAG)
140 < #define SM_IS_NTH_T_LRU(sm,n)        SM_IS_NTH_T_FLAG(sm,n,T_LRU_FLAG)
140 > #define SM_IS_NTH_T_BG(sm,n)        SM_IS_NTH_T_FLAG(sm,n,T_BG_FLAG)
141  
142   #define SM_SET_NTH_T_ACTIVE(sm,n)    SM_SET_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG)
143   #define SM_SET_NTH_T_BASE(sm,n)      SM_SET_NTH_T_FLAG(sm,n,T_BASE_FLAG)
144 < #define SM_SET_NTH_T_NEW(sm,n)    SM_SET_NTH_T_FLAG(sm,n,T_NEW_FLAG)
145 < #define SM_SET_NTH_T_LRU(sm,n)       SM_SET_NTH_T_FLAG(sm,n,T_LRU_FLAG)
144 > #define SM_SET_NTH_T_NEW(sm,n)       SM_SET_NTH_T_FLAG(sm,n,T_NEW_FLAG)
145 > #define SM_SET_NTH_T_BG(sm,n)        SM_SET_NTH_T_FLAG(sm,n,T_BG_FLAG)
146  
147 < #define SM_CLEAR_NTH_T_ACTIVE(sm,n)  SM_CLEAR_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG)
148 < #define SM_CLEAR_NTH_T_BASE(sm,n)    SM_CLEAR_NTH_T_FLAG(sm,n,T_BASE_FLAG)
149 < #define SM_CLEAR_NTH_T_NEW(sm,n)  SM_CLEAR_NTH_T_FLAG(sm,n,T_NEW_FLAG)
150 < #define SM_CLEAR_NTH_T_LRU(sm,n)     SM_CLEAR_NTH_T_FLAG(sm,n,T_LRU_FLAG)
147 > #define SM_CLR_NTH_T_ACTIVE(sm,n)   SM_CLR_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG)
148 > #define SM_CLR_NTH_T_BASE(sm,n)     SM_CLR_NTH_T_FLAG(sm,n,T_BASE_FLAG)
149 > #define SM_CLR_NTH_T_NEW(sm,n)      SM_CLR_NTH_T_FLAG(sm,n,T_NEW_FLAG)
150 > #define SM_CLR_NTH_T_BG(sm,n)       SM_CLR_NTH_T_FLAG(sm,n,T_BG_FLAG)
151  
152   #define SM_NTH_TRI(m,n)               (&(SM_TRIS(m)[(n)]))
153   #define SM_NTH_VERT(m,n)              (SM_VERTS(m)[(n)])
154 < #define SM_FREE_TRI_ID(m,n) (n = SM_FREE_TRIS(m)==-1? \
155 <    (SM_TRI_CNT(m)<SM_MAX_TRIS(m)?SM_TRI_CNT(m)++:-1):(n=SM_FREE_TRIS(m), \
138 <     SM_FREE_TRIS(m)=T_NEXT_FREE(SM_NTH_TRI(m,SM_FREE_TRIS(m))),n))
154 >
155 > #define SM_T_ID_VALID(s,t_id) T_IS_VALID(SM_NTH_TRI(s,t_id))
156  
140 – #define SM_SAMP_BASE(m)               RS_BASE(SM_SAMP(m))
141 – #define SM_SAMP_FREE(m)               RS_FREE(SM_SAMP(m))
142 – #define SM_SAMP_EOL(m)                RS_EOL(SM_SAMP(m))
143 – #define SM_MAX_SAMP(m)                RS_MAX_SAMP(SM_SAMP(m))
144 – #define SM_MAX_AUX_PT(m)              RS_MAX_AUX_PT(SM_SAMP(m))
145 – #define SM_NTH_WV(m,i)                RS_NTH_W_PT(SM_SAMP(m),i)
146 – #define SM_NTH_W_DIR(m,i)             RS_NTH_W_DIR(SM_SAMP(m),i)
147 – #define SM_NTH_RGB(m,i)               RS_NTH_RGB(SM_SAMP(m),i)
148 – #define SM_RGB(m)                    RS_RGB(SM_SAMP(m))
149 – #define SM_BRT(m)                     RS_BRT(SM_SAMP(m))
150 – #define SM_NTH_BRT(m,i)               RS_NTH_BRT(SM_SAMP(m),i)
151 – #define SM_CHR(m)                     RS_CHR(SM_SAMP(m))
152 – #define SM_NTH_CHR(m,i)               RS_NTH_CHR(SM_SAMP(m),i)
153 – #define SM_NUM_SAMP(m)               RS_NUM_SAMP(SM_SAMP(m))
154 – #define SM_TONE_MAP(m)               RS_TONE_MAP(SM_SAMP(m))
157  
158 + #define SM_MAX_SAMP(m)                S_MAX_SAMP(SM_SAMP(m))
159 + #define SM_MAX_POINTS(m)              S_MAX_POINTS(SM_SAMP(m))
160 + #define SM_SAMP_BASE(m)               S_BASE(SM_SAMP(m))
161 + #define SM_NTH_WV(m,i)                S_NTH_W_PT(SM_SAMP(m),i)
162 + #define SM_NTH_W_DIR(m,i)             S_NTH_W_DIR(SM_SAMP(m),i)
163 + #define SM_DIR_ID(m,i)            (!SM_BASE_ID(m,i) && SM_NTH_W_DIR(m,i)==-1)
164 + #define SM_NTH_RGB(m,i)               S_NTH_RGB(SM_SAMP(m),i)
165 + #define SM_RGB(m)                    S_RGB(SM_SAMP(m))
166 + #define SM_WP(m)                    S_W_PT(SM_SAMP(m))
167 + #define SM_BRT(m)                     S_BRT(SM_SAMP(m))
168 + #define SM_NTH_BRT(m,i)               S_NTH_BRT(SM_SAMP(m),i)
169 + #define SM_CHR(m)                     S_CHR(SM_SAMP(m))
170 + #define SM_NTH_CHR(m,i)               S_NTH_CHR(SM_SAMP(m),i)
171 + #define SM_NUM_SAMP(m)               S_NUM_SAMP(SM_SAMP(m))
172 + #define SM_TONE_MAP(m)               S_TONE_MAP(SM_SAMP(m))
173 +
174   #define SM_ALLOWED_VIEW_CHANGE(m) (SM_NUM_SAMP(m)/smDist_sum*SM_VIEW_FRAC)
175  
158 – #define SM_FOR_ALL_FLAGGED_TRIS(m,i,w,b) for(i=smNext_tri_flag_set(m,0,w,b); \
159 – i < SM_TRI_CNT(m); i=smNext_tri_flag_set(m,i+1,w,b))
160 –
161 – #define SM_FOR_ALL_ACTIVE_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_ACTIVE_FLAG,0)
162 – #define SM_FOR_ALL_NEW_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_NEW_FLAG,0)
163 – #define SM_FOR_ALL_BASE_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_BASE_FLAG,0)
164 – #define SM_FOR_ALL_VALID_TRIS(m,i) for(i=smNext_valid_tri(m,0); \
165 – i < SM_TRI_CNT(m); i=smNext_valid_tri(m,i+1))
166 –
167 – #define SM_FOR_ALL_ACTIVE_FG_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_ACTIVE_FLAG,1)
168 –
169 – #define SM_FOR_ALL_ACTIVE_BG_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_ACTIVE_FLAG,2)
170 –
171 –
176   #define SM_FOR_ALL_ADJACENT_TRIS(sm,id,t) for(t=smTri_next_ccw_nbr(sm,t,id); \
177   t!=SM_NTH_TRI(sm,SM_NTH_VERT(sm,id)); t=smTri_next_ccw_nbr(sm,t,id))
178  
179   #define SM_INVALID_SAMP_ID(sm,id)  (((id) < 0) || ((id) >= SM_MAX_SAMP(sm)))
180 < #define SM_INVALID_POINT_ID(sm,id)  (((id) < 0) || ((id) >= SM_MAX_AUX_PT(sm)))
177 < #define SM_T_CENTROID(sm,t,c)  tri_centroid(SM_NTH_WV(sm,T_NTH_V(t,0)),SM_NTH_WV(sm,T_NTH_V(t,1)),SM_NTH_WV(sm,T_NTH_V(t,2)),c)
180 > #define SM_INVALID_POINT_ID(sm,id)  (((id) < 0) || ((id) >= SM_MAX_POINTS(sm)))
181   #define SM_T_NTH_WV(sm,t,i)  (SM_NTH_WV(sm,T_NTH_V(t,i)))
182  
183   #define SM_BASE_ID(s,i)  \
184 < ((i) >= RS_MAX_SAMP(SM_SAMP(s)) && (i) < RS_MAX_AUX_PT(SM_SAMP(s)))
184 > ((i) >= S_MAX_SAMP(SM_SAMP(s)) && (i) < S_MAX_BASE_PT(SM_SAMP(s)))
185  
186   #define SM_BG_SAMPLE(sm,i)   (SM_NTH_W_DIR(sm,i)==-1)
187  
# Line 191 | Line 194 | t!=SM_NTH_TRI(sm,SM_NTH_VERT(sm,id)); t=smTri_next_ccw
194  
195   #define SM_FOR_ALL_SAMPLES(sm,i) for((i)=0;i < SM_NUM_SAMP(sm);(i)++)
196  
197 < typedef struct _T_DEPTH {
198 <  int tri;
199 <  double depth;
200 < }T_DEPTH;
197 > #define smInit_locator(sm,c)    (stInit(SM_LOCATOR(sm)), \
198 >                                 ST_SET_CENTER(SM_LOCATOR(sm),c))
199 > #define smClear_locator(sm)    stClear(SM_LOCATOR(sm))
200 > #define smAlloc_locator(sm)   stAlloc(SM_LOCATOR(sm))
201 > #define smFree_locator(sm)   stClear(SM_LOCATOR(sm))
202 > #define smPointLocateCell(sm,pt)  stPoint_locate(SM_LOCATOR(sm),pt)
203 > #define smUnalloc_samp(sm,id)  sUnalloc_samp(SM_SAMP(sm),id)
204 > #define smFree_samples(sm)     sFree(SM_SAMP(sm))
205 > #define smClear_samples(sm)    sClear(SM_SAMP(sm))
206 > #define smInit_samples(sm)     sInit(SM_SAMP(sm))
207  
208  
209 + #define smClear_vert(sm,id)    (SM_NTH_VERT(sm,id) = INVALID)
210 +
211 + typedef struct _RT_ARGS_{
212 +  FVECT orig,dir;
213 +  int t_id;
214 +  OBJECT *os;
215 + }RT_ARGS;
216 +
217 +
218 + typedef struct _ADD_ARGS {
219 +  int t_id;
220 +  OBJECT *del_set;
221 + }ADD_ARGS;
222 +
223   extern SM *smMesh;
224   extern int smNew_tri_cnt;
225   extern double smDist_sum;
226  
227 +
228   #ifdef TEST_DRIVER
229   extern VIEW View;
230   extern VIEW Current_View;
231   extern int Pick_tri,Picking,Pick_samp;
232   extern FVECT Pick_point[500],Pick_origin,Pick_dir;
233   extern FVECT Pick_v0[500],Pick_v1[500],Pick_v2[500];
234 + extern int Pick_q[500];
235   extern FVECT P0,P1,P2;
236   extern int Pick_cnt;
237   extern FVECT FrustumNear[4],FrustumFar[4];
238   #endif
239  
240 < #ifdef DEBUG
241 < extern int Malloc_cnt;
242 < #endif
240 >
241 > /*
242 > * int
243 > * smInit(n)            : Initialize/clear data structures for n entries
244 > * int  n;
245 > *
246 > * Initialize sampL and other data structures for at least n samples.
247 > * If n is 0, then free data structures.  Return number actually allocated.
248 > *
249 > *
250 > * int
251 > * smNewSamp(c, p, v)   : register new sample point and return index
252 > * COLR c;              : pixel color (RGBE)
253 > * FVECT        p;      : world intersection point
254 > * FVECT        v;      : ray direction vector
255 > *
256 > * Add new sample point to data structures, removing old values as necessary.
257 > * New sample representation will be output in next call to smUpdate().
258 > *
259 > *
260 > * int
261 > * smFindSamp(orig, dir): intersect ray with 3D rep. and find closest sample
262 > * FVECT        orig, dir;
263 > *
264 > * Find the closest sample to the given ray.  Return -1 on failure.
265 > *
266 > *
267 > * smClean()            : display has been wiped clean
268 > *
269 > * Called after display has been effectively cleared, meaning that all
270 > * geometry must be resent down the pipeline in the next call to smUpdate().
271 > *
272 > *
273 > * smUpdate(vp, qua)    : update OpenGL output geometry for view vp
274 > * VIEW *vp;            : desired view
275 > * int  qua;            : quality level (percentage on linear time scale)
276 > *
277 > * Draw new geometric representation using OpenGL calls.  Assume that the
278 > * view has already been set up and the correct frame buffer has been
279 > * selected for drawing.  The quality level is on a linear scale, where 100%
280 > * is full (final) quality.  It is not necessary to redraw geometry that has
281 > * been output since the last call to smClean().  (The last view drawn will
282 > * be vp==&odev.v each time.)
283 > */
284   #endif
285  
286  

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