8 |
|
* sm_samp.c |
9 |
|
*/ |
10 |
|
#include "standard.h" |
11 |
+ |
#include "sm_flag.h" |
12 |
+ |
#include "rhd_sample.h" |
13 |
|
|
14 |
< |
#include "sm.h" |
14 |
> |
SAMP rsL; |
15 |
> |
int4 *samp_flag=NULL; |
16 |
|
|
14 |
– |
RSAMP rsL; |
17 |
|
|
18 |
+ |
/* Each sample has a world coord point, and direction, brightness,chrominance, |
19 |
+ |
and RGB triples |
20 |
+ |
*/ |
21 |
+ |
#ifndef HP_VERSION |
22 |
+ |
#define TMSIZE sizeof(TMbright) |
23 |
+ |
#else |
24 |
+ |
#define TMSIZE 0 |
25 |
+ |
#endif |
26 |
+ |
#define SAMPSIZ (3*sizeof(float)+sizeof(int4)+ 6*sizeof(BYTE) + TMSIZE) |
27 |
|
|
28 |
< |
#define SAMPSIZ (3*sizeof(float)+sizeof(int4)+\ |
29 |
< |
sizeof(TMbright)+6*sizeof(BYTE)) |
30 |
< |
/* Initialize/clear global smL sample list for at least n samples */ |
31 |
< |
int |
32 |
< |
smAlloc_samples(sm,n,extra_points) |
33 |
< |
SM *sm; |
23 |
< |
register int n,extra_points; |
28 |
> |
/* Extra points just need direction and world space point */ |
29 |
> |
#define POINTSIZ (3*sizeof(float)) |
30 |
> |
|
31 |
> |
/* Clear the flags for all samples */ |
32 |
> |
sClear_all_flags(s) |
33 |
> |
SAMP *s; |
34 |
|
{ |
35 |
< |
unsigned nbytes; |
36 |
< |
register unsigned i; |
37 |
< |
RSAMP *rs; |
35 |
> |
if(samp_flag) |
36 |
> |
bzero((char *)samp_flag,FLAG_BYTES(S_MAX_SAMP(s))); |
37 |
> |
} |
38 |
|
|
39 |
< |
rs = &rsL; |
39 |
> |
sInit(s) |
40 |
> |
SAMP *s; |
41 |
> |
{ |
42 |
> |
S_REPLACE_SAMP(s) = 0; |
43 |
> |
S_NUM_SAMP(s) = 0; |
44 |
> |
S_TONE_MAP(s) = 0; |
45 |
> |
S_FREE_SAMP(s) = -1; |
46 |
> |
sClear_base_points(s); |
47 |
> |
sClear_all_flags(s); |
48 |
|
|
49 |
< |
SM_SAMP(sm) = rs; |
49 |
> |
} |
50 |
|
|
51 |
+ |
sFree(s) |
52 |
+ |
SAMP *s; |
53 |
+ |
{ |
54 |
+ |
if(S_BASE(s)) |
55 |
+ |
{ |
56 |
+ |
free(S_BASE(s)); |
57 |
+ |
S_BASE(s)=NULL; |
58 |
+ |
} |
59 |
+ |
if(samp_flag) |
60 |
+ |
{ |
61 |
+ |
free(samp_flag); |
62 |
+ |
samp_flag = NULL; |
63 |
+ |
} |
64 |
+ |
} |
65 |
+ |
/* Initialize/clear global smL sample list for at least n samples */ |
66 |
+ |
SAMP |
67 |
+ |
*sAlloc(nptr,extra_points) |
68 |
+ |
int *nptr,extra_points; |
69 |
+ |
{ |
70 |
+ |
unsigned nbytes; |
71 |
+ |
register unsigned i; |
72 |
+ |
SAMP *s; |
73 |
+ |
int n; |
74 |
+ |
|
75 |
+ |
s = &rsL; |
76 |
|
/* round space up to nearest power of 2 */ |
77 |
< |
nbytes = n*SAMPSIZ + extra_points*SM_POINTSIZ + 8; |
77 |
> |
nbytes = (*nptr)*SAMPSIZ + extra_points*POINTSIZ + 8; |
78 |
|
for (i = 1024; nbytes > i; i <<= 1) |
79 |
|
; |
80 |
< |
n = (i - 8 - extra_points*SM_POINTSIZ) / SAMPSIZ; |
80 |
> |
/* get number of samples that fit in block */ |
81 |
> |
n = (i - 8 - extra_points*POINTSIZ) / SAMPSIZ; |
82 |
|
|
83 |
< |
RS_BASE(rs) = (char *)malloc(n*SAMPSIZ + extra_points*SM_POINTSIZ); |
84 |
< |
if (!RS_BASE(rs)) |
83 |
> |
S_BASE(s) = (char *)malloc(n*SAMPSIZ + extra_points*POINTSIZ); |
84 |
> |
if (!S_BASE(s)) |
85 |
|
error(SYSTEM,"smInit_samples(): Unable to allocate memory"); |
86 |
|
|
87 |
|
/* assign larger alignment types earlier */ |
88 |
< |
RS_W_PT(rs) = (float (*)[3])RS_BASE(rs); |
89 |
< |
RS_W_DIR(rs) = (int4 *)(RS_W_PT(rs) + n + extra_points); |
90 |
< |
RS_BRT(rs) = (TMbright *)(RS_W_DIR(rs) + n + extra_points); |
91 |
< |
RS_CHR(rs) = (BYTE (*)[3])(RS_BRT(rs) + n); |
92 |
< |
RS_RGB(rs) = (BYTE (*)[3])(RS_CHR(rs) + n); |
93 |
< |
RS_MAX_SAMP(rs) = n; |
94 |
< |
RS_MAX_AUX_PT(rs) = n + extra_points; |
88 |
> |
S_W_PT(s) = (float (*)[3])S_BASE(s); |
89 |
> |
S_W_DIR(s) = (int4 *)(S_W_PT(s) + n + extra_points); |
90 |
> |
#ifndef HP_VERSION |
91 |
> |
S_BRT(s) = (TMbright *)(S_W_DIR(s) + n); |
92 |
> |
S_CHR(s) = (BYTE (*)[3])(S_BRT(s) + n); |
93 |
> |
#else |
94 |
> |
S_CHR(s) = (BYTE (*)[3])(S_W_DIR(s) + n); |
95 |
> |
#endif |
96 |
> |
S_RGB(s) = (BYTE (*)[3])(S_CHR(s) + n); |
97 |
> |
S_MAX_SAMP(s) = n; |
98 |
> |
S_MAX_BASE_PT(s) = n + extra_points; |
99 |
|
|
100 |
< |
smClear_samples(sm); |
100 |
> |
/* Allocate memory for a per/sample bit flag */ |
101 |
> |
if(!(samp_flag = (int4 *)malloc(FLAG_BYTES(n)))) |
102 |
> |
error(SYSTEM,"smInit_samples(): Unable to allocate flag memory"); |
103 |
|
|
104 |
< |
return(n); |
104 |
> |
sInit(s); |
105 |
> |
*nptr = n; |
106 |
> |
|
107 |
> |
return(s); |
108 |
|
} |
109 |
|
|
57 |
– |
smClear_aux_samples(sm) |
58 |
– |
SM *sm; |
59 |
– |
{ |
60 |
– |
RS_NEXT_AUX_PT(SM_SAMP(sm)) = RS_MAX_SAMP(SM_SAMP(sm)); |
61 |
– |
} |
110 |
|
|
111 |
+ |
/* Add a base point to the sample structure: only the world point |
112 |
+ |
is added: These points are not displayed-they are used to form the |
113 |
+ |
initial mesh |
114 |
+ |
*/ |
115 |
|
int |
116 |
< |
smClear_samples(sm) |
117 |
< |
SM *sm; |
116 |
> |
sAdd_base_point(s,v) |
117 |
> |
SAMP *s; |
118 |
> |
FVECT v; |
119 |
|
{ |
67 |
– |
RSAMP *samp; |
68 |
– |
|
69 |
– |
samp = SM_SAMP(sm); |
70 |
– |
RS_FREE_SAMP(samp) = -1; |
71 |
– |
RS_REPLACE_SAMP(samp) = 0; |
72 |
– |
RS_NUM_SAMP(samp) = 0; |
73 |
– |
RS_TONE_MAP(samp) = 0; |
74 |
– |
smClear_aux_samples(sm); |
75 |
– |
return(1); |
76 |
– |
} |
77 |
– |
|
78 |
– |
int |
79 |
– |
smAdd_aux_point(sm,v,d) |
80 |
– |
SM *sm; |
81 |
– |
FVECT v,d; |
82 |
– |
{ |
83 |
– |
RSAMP *samp; |
120 |
|
int id; |
121 |
< |
|
86 |
< |
/* Get the SM sample array */ |
87 |
< |
samp = SM_SAMP(sm); |
121 |
> |
|
122 |
|
/* Get pointer to next available point */ |
123 |
< |
id = RS_NEXT_AUX_PT(samp); |
124 |
< |
if(id >= RS_MAX_AUX_PT(samp)) |
123 |
> |
id = S_NEXT_BASE_PT(s); |
124 |
> |
if(id >= S_MAX_BASE_PT(s)) |
125 |
|
return(-1); |
126 |
|
|
127 |
|
/* Update free aux pointer */ |
128 |
< |
RS_NEXT_AUX_PT(samp)++; |
128 |
> |
S_NEXT_BASE_PT(s)++; |
129 |
|
|
130 |
|
/* Copy vector into point */ |
131 |
< |
VCOPY(RS_NTH_W_PT(samp,id),v); |
98 |
< |
RS_NTH_W_DIR(samp,id) = encodedir(d); |
131 |
> |
VCOPY(S_NTH_W_PT(s,id),v); |
132 |
|
return(id); |
133 |
|
} |
134 |
|
|
135 |
+ |
/* Initialize the sample 'id' to contain world point 'p', direction 'd' and |
136 |
+ |
color 'c'. If 'p' is NULL, a direction only is represented in 'd'. In |
137 |
+ |
this case, the world point is set to the projection of the direction on |
138 |
+ |
the view sphere, and the direction value is set to -1 |
139 |
+ |
*/ |
140 |
|
void |
141 |
< |
smInit_sample(sm,id,c,d,p) |
142 |
< |
SM *sm; |
141 |
> |
sInit_samp(s,id,c,d,p) |
142 |
> |
SAMP *s; |
143 |
|
int id; |
144 |
|
COLR c; |
145 |
|
FVECT d,p; |
146 |
|
{ |
147 |
< |
RSAMP *samp; |
148 |
< |
|
149 |
< |
samp = SM_SAMP(sm); |
150 |
< |
if(p) |
151 |
< |
{ |
114 |
< |
/* Copy vector into point */ |
115 |
< |
VCOPY(RS_NTH_W_PT(samp,id),p); |
116 |
< |
RS_NTH_W_DIR(samp,id) = encodedir(d); |
117 |
< |
} |
147 |
> |
/* Copy vector into point */ |
148 |
> |
VCOPY(S_NTH_W_PT(s,id),p); |
149 |
> |
if(d) |
150 |
> |
S_NTH_W_DIR(s,id) = encodedir(d); |
151 |
> |
/* direction only */ |
152 |
|
else |
153 |
< |
{ |
154 |
< |
VADD(RS_NTH_W_PT(samp,id),d,SM_VIEW_CENTER(sm)); |
155 |
< |
RS_NTH_W_DIR(samp,id) = -1; |
122 |
< |
} |
123 |
< |
|
153 |
> |
S_NTH_W_DIR(s,id) = -1; |
154 |
> |
|
155 |
> |
/* calculate the brightness and chrominance */ |
156 |
|
#ifndef TEST_DRIVER |
157 |
< |
tmCvColrs(&RS_NTH_BRT(samp,id),RS_NTH_CHR(samp,id),c,1); |
157 |
> |
tmCvColrs(&S_NTH_BRT(s,id),S_NTH_CHR(s,id),c,1); |
158 |
|
#else |
159 |
|
if(c) |
160 |
|
{ |
161 |
< |
RS_NTH_RGB(samp,id)[0] = c[0]; |
162 |
< |
RS_NTH_RGB(samp,id)[1] = c[1]; |
163 |
< |
RS_NTH_RGB(samp,id)[2] = c[2]; |
161 |
> |
S_NTH_RGB(s,id)[0] = c[0]; |
162 |
> |
S_NTH_RGB(s,id)[1] = c[1]; |
163 |
> |
S_NTH_RGB(s,id)[2] = c[2]; |
164 |
|
} |
165 |
|
else |
166 |
|
{ |
167 |
< |
RS_NTH_RGB(samp,id)[0] = 100; |
168 |
< |
RS_NTH_RGB(samp,id)[1] = 0; |
169 |
< |
RS_NTH_RGB(samp,id)[2] = 0; |
167 |
> |
S_NTH_RGB(s,id)[0] = 100; |
168 |
> |
S_NTH_RGB(s,id)[1] = 0; |
169 |
> |
S_NTH_RGB(s,id)[2] = 0; |
170 |
|
} |
171 |
|
#endif |
172 |
+ |
/* Set ACTIVE bit upon creation */ |
173 |
+ |
S_SET_FLAG(id); |
174 |
+ |
|
175 |
|
} |
176 |
|
|
177 |
|
|
178 |
< |
void |
179 |
< |
smReset_sample(sm,id,n_id) |
180 |
< |
SM *sm; |
181 |
< |
int id,n_id; |
178 |
> |
/* Copy the values of sample n_id into sample id: Note must not call with |
179 |
> |
Base point n_id |
180 |
> |
*/ |
181 |
> |
int |
182 |
> |
sReset_samp(s,n_id,id) |
183 |
> |
SAMP *s; |
184 |
> |
int n_id,id; |
185 |
|
{ |
148 |
– |
RSAMP *samp; |
186 |
|
|
187 |
< |
samp = SM_SAMP(sm); |
188 |
< |
|
189 |
< |
/* Copy vector into point */ |
190 |
< |
VCOPY(RS_NTH_W_PT(samp,id),RS_NTH_W_PT(samp,n_id)); |
191 |
< |
RS_NTH_W_DIR(samp,id) = RS_NTH_W_DIR(samp,n_id); |
187 |
> |
#ifdef DEBUG |
188 |
> |
if(id <0||id >= S_MAX_SAMP(s)||n_id <0||n_id >= S_MAX_SAMP(s)) |
189 |
> |
{ |
190 |
> |
eputs("smReset_sample():invalid sample id\n"); |
191 |
> |
return(0); |
192 |
> |
} |
193 |
> |
#endif |
194 |
|
|
195 |
< |
RS_NTH_BRT(samp,id) = RS_NTH_BRT(samp,n_id); |
196 |
< |
RS_NTH_CHR(samp,id)[0] = RS_NTH_CHR(samp,n_id)[0]; |
197 |
< |
RS_NTH_CHR(samp,id)[1] = RS_NTH_CHR(samp,n_id)[1]; |
159 |
< |
RS_NTH_CHR(samp,id)[2] = RS_NTH_CHR(samp,n_id)[2]; |
160 |
< |
RS_NTH_RGB(samp,id)[0] = RS_NTH_RGB(samp,n_id)[0]; |
161 |
< |
RS_NTH_RGB(samp,id)[1] = RS_NTH_RGB(samp,n_id)[1]; |
162 |
< |
RS_NTH_RGB(samp,id)[2] = RS_NTH_RGB(samp,n_id)[2]; |
195 |
> |
/* Copy vector into point */ |
196 |
> |
VCOPY(S_NTH_W_PT(s,n_id),S_NTH_W_PT(s,id)); |
197 |
> |
S_NTH_W_DIR(s,n_id) = S_NTH_W_DIR(s,id); |
198 |
|
|
199 |
+ |
#ifndef HP_VERSION |
200 |
+ |
S_NTH_BRT(s,n_id) = S_NTH_BRT(s,id); |
201 |
+ |
#endif |
202 |
+ |
S_NTH_CHR(s,n_id)[0] = S_NTH_CHR(s,id)[0]; |
203 |
+ |
S_NTH_CHR(s,n_id)[1] = S_NTH_CHR(s,id)[1]; |
204 |
+ |
S_NTH_CHR(s,n_id)[2] = S_NTH_CHR(s,id)[2]; |
205 |
+ |
return(1); |
206 |
|
} |
207 |
|
|
208 |
+ |
/* Allocate a new sample. If an existing sample was replaced: set flag */ |
209 |
|
int |
210 |
< |
rsAlloc_samp(samp,replaced) |
211 |
< |
RSAMP *samp; |
210 |
> |
sAlloc_samp(s,replaced) |
211 |
> |
SAMP *s; |
212 |
|
int *replaced; |
213 |
|
|
214 |
|
{ |
215 |
|
int id; |
216 |
|
|
217 |
|
if(replaced) |
218 |
< |
*replaced = FALSE; |
219 |
< |
if(RS_NUM_SAMP(samp) < RS_MAX_SAMP(samp)) |
218 |
> |
*replaced = 0; |
219 |
> |
|
220 |
> |
if((id = S_FREE_SAMP(s)) != INVALID) |
221 |
|
{ |
222 |
< |
id = RS_NUM_SAMP(samp); |
223 |
< |
RS_NUM_SAMP(samp)++; |
180 |
< |
|
222 |
> |
S_FREE_SAMP(s) = INVALID; |
223 |
> |
return(id); |
224 |
|
} |
225 |
+ |
/* If havn't reached end of sample array:return next sample */ |
226 |
+ |
if(S_NUM_SAMP(s) < S_MAX_SAMP(s)) |
227 |
+ |
id = S_NUM_SAMP(s)++; |
228 |
|
else |
229 |
< |
if(RS_REPLACE_SAMP(samp) != -1) |
230 |
< |
{ |
231 |
< |
id = RS_REPLACE_SAMP(samp); |
232 |
< |
/* NOTE: NEED to do LRU later*/ |
233 |
< |
RS_REPLACE_SAMP(samp) = (id + 1)% RS_MAX_SAMP(samp); |
234 |
< |
if(replaced) |
235 |
< |
*replaced = TRUE; |
236 |
< |
} |
237 |
< |
else |
238 |
< |
if(RS_FREE_SAMP(samp) != -1) |
239 |
< |
{ |
240 |
< |
id = RS_FREE_SAMP(samp); |
241 |
< |
RS_FREE_SAMP(samp) = RS_NTH_W_DIR(samp,id); |
242 |
< |
} |
243 |
< |
else |
198 |
< |
{ |
199 |
< |
#ifdef DEBUG |
200 |
< |
eputs("rsAlloc_samp(): no samples available"); |
201 |
< |
#endif |
202 |
< |
id = -1; |
203 |
< |
} |
204 |
< |
|
229 |
> |
{ |
230 |
> |
/* CLOCKED LRU replacement policy: Search through samples starting |
231 |
> |
with S_REPLACE_SAMP for a sample that does not have its active |
232 |
> |
bit set. Clear bit along the way |
233 |
> |
*/ |
234 |
> |
id = S_REPLACE_SAMP(s); |
235 |
> |
while(S_IS_FLAG(id)) |
236 |
> |
{ |
237 |
> |
S_CLR_FLAG(id); |
238 |
> |
id = (id +1)% S_MAX_SAMP(s); |
239 |
> |
} |
240 |
> |
S_REPLACE_SAMP(s) = id = (id +1)% S_MAX_SAMP(s); |
241 |
> |
if(replaced) |
242 |
> |
*replaced = 1; |
243 |
> |
} |
244 |
|
return(id); |
245 |
|
} |
246 |
|
|
247 |
< |
int |
248 |
< |
rsDelete_sample(samp,id) |
249 |
< |
RSAMP *samp; |
211 |
< |
int id; |
212 |
< |
{ |
213 |
< |
/* First check for a valid id */ |
214 |
< |
if(id >= RS_MAX_SAMP(samp) || id < 0) |
215 |
< |
return(FALSE); |
216 |
< |
|
217 |
< |
RS_NTH_W_DIR(samp,id) = RS_FREE_SAMP(samp); |
218 |
< |
RS_FREE_SAMP(samp) = id; |
247 |
> |
/* Set the sample flag to be unused- so will get replaced on next LRU |
248 |
> |
iteration |
249 |
> |
*/ |
250 |
|
|
251 |
< |
return(TRUE); |
221 |
< |
} |
222 |
< |
|
251 |
> |
/* NOTE: Do we want a free list as well? */ |
252 |
|
int |
253 |
< |
smDelete_sample(sm,id) |
254 |
< |
SM *sm; |
253 |
> |
sDelete_samp(s,id) |
254 |
> |
SAMP *s; |
255 |
|
int id; |
256 |
|
{ |
257 |
< |
RSAMP *samp; |
258 |
< |
|
259 |
< |
samp = SM_SAMP(sm); |
260 |
< |
return(rsDelete_sample(samp,id)); |
261 |
< |
} |
233 |
< |
|
234 |
< |
/* NEEDS: to add free list- and bit for clocked LRU */ |
235 |
< |
int |
236 |
< |
smAdd_sample_point(sm,c,dir,p) |
237 |
< |
SM *sm; |
238 |
< |
COLR c; |
239 |
< |
FVECT dir; |
240 |
< |
FVECT p; |
241 |
< |
|
242 |
< |
{ |
243 |
< |
RSAMP *samp; |
244 |
< |
int id; |
245 |
< |
int replaced; |
257 |
> |
#ifdef DEBUG |
258 |
> |
/* Fist check for a valid id */ |
259 |
> |
if(id >= S_MAX_SAMP(s) || id < 0) |
260 |
> |
return(0); |
261 |
> |
#endif |
262 |
|
|
263 |
< |
/* Get the SM sample array */ |
264 |
< |
samp = SM_SAMP(sm); |
249 |
< |
/* Get pointer to next available point */ |
250 |
< |
id = rsAlloc_samp(samp,&replaced); |
251 |
< |
if(id < 0) |
252 |
< |
return(-1); |
253 |
< |
|
254 |
< |
if(replaced) |
255 |
< |
smMesh_remove_vertex(sm,id); |
256 |
< |
|
257 |
< |
smInit_sample(sm,id,c,dir,p); |
258 |
< |
|
259 |
< |
return(id); |
263 |
> |
S_CLR_FLAG(id); |
264 |
> |
return(1); |
265 |
|
} |
261 |
– |
|
262 |
– |
|
263 |
– |
|
264 |
– |
|
266 |
|
|
267 |
|
|
268 |
|
|