| 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 |
|
|
| 17 |
< |
RSAMP rsL; |
| 17 |
> |
/* Each sample has a world coord point, and direction, brightness,chrominance, |
| 18 |
> |
and RGB triples |
| 19 |
> |
*/ |
| 20 |
|
|
| 21 |
+ |
#define TMSIZE sizeof(TMbright) |
| 22 |
+ |
#define SAMPSIZ (3*sizeof(SFLOAT)+sizeof(int4)+ 6*sizeof(BYTE) + TMSIZE + 2*sizeof(int)) |
| 23 |
|
|
| 24 |
< |
#define SAMPSIZ (3*sizeof(float)+sizeof(int4)+\ |
| 25 |
< |
sizeof(TMbright)+6*sizeof(BYTE)) |
| 26 |
< |
/* Initialize/clear global smL sample list for at least n samples */ |
| 27 |
< |
int |
| 28 |
< |
smAlloc_samples(sm,n,extra_points) |
| 29 |
< |
SM *sm; |
| 23 |
< |
register int n,extra_points; |
| 24 |
> |
/* Extra points world space point, vert flag and qt flag */ |
| 25 |
> |
#define POINTSIZ (3*sizeof(SFLOAT) + 2*sizeof(int)) |
| 26 |
> |
|
| 27 |
> |
/* Clear the flags for all samples */ |
| 28 |
> |
sClear_all_flags(s) |
| 29 |
> |
SAMP *s; |
| 30 |
|
{ |
| 31 |
< |
unsigned nbytes; |
| 32 |
< |
register unsigned i; |
| 33 |
< |
RSAMP *rs; |
| 31 |
> |
if(samp_flag) |
| 32 |
> |
bzero((char *)samp_flag,FLAG_BYTES(S_MAX_BASE_PT(s))); |
| 33 |
> |
} |
| 34 |
|
|
| 35 |
< |
rs = &rsL; |
| 35 |
> |
sInit(s) |
| 36 |
> |
SAMP *s; |
| 37 |
> |
{ |
| 38 |
> |
S_REPLACE_SAMP(s) = 0; |
| 39 |
> |
S_NUM_SAMP(s) = 0; |
| 40 |
> |
S_TONE_MAP(s) = 0; |
| 41 |
> |
S_FREE_SAMP(s) = -1; |
| 42 |
> |
sClear_base_points(s); |
| 43 |
|
|
| 44 |
< |
SM_SAMP(sm) = rs; |
| 44 |
> |
} |
| 45 |
|
|
| 46 |
+ |
sFree(s) |
| 47 |
+ |
SAMP *s; |
| 48 |
+ |
{ |
| 49 |
+ |
if(S_BASE(s)) |
| 50 |
+ |
{ |
| 51 |
+ |
free(S_BASE(s)); |
| 52 |
+ |
S_BASE(s)=NULL; |
| 53 |
+ |
} |
| 54 |
+ |
if(samp_flag) |
| 55 |
+ |
{ |
| 56 |
+ |
free(samp_flag); |
| 57 |
+ |
samp_flag = NULL; |
| 58 |
+ |
} |
| 59 |
+ |
} |
| 60 |
+ |
/* Initialize/clear global smL sample list for at least n samples */ |
| 61 |
+ |
SAMP |
| 62 |
+ |
*sAlloc(nptr,extra_points) |
| 63 |
+ |
int *nptr,extra_points; |
| 64 |
+ |
{ |
| 65 |
+ |
unsigned nbytes; |
| 66 |
+ |
register unsigned i; |
| 67 |
+ |
SAMP *s; |
| 68 |
+ |
int n; |
| 69 |
+ |
|
| 70 |
+ |
s = &rsL; |
| 71 |
|
/* round space up to nearest power of 2 */ |
| 72 |
< |
nbytes = n*SAMPSIZ + extra_points*SM_POINTSIZ + 8; |
| 72 |
> |
nbytes = (*nptr)*SAMPSIZ + extra_points*POINTSIZ + 8; |
| 73 |
|
for (i = 1024; nbytes > i; i <<= 1) |
| 74 |
|
; |
| 75 |
< |
n = (i - 8 - extra_points*SM_POINTSIZ) / SAMPSIZ; |
| 75 |
> |
/* get number of samples that fit in block */ |
| 76 |
> |
n = (i - 8 - extra_points*POINTSIZ) / SAMPSIZ; |
| 77 |
|
|
| 78 |
< |
RS_BASE(rs) = (char *)malloc(n*SAMPSIZ + extra_points*SM_POINTSIZ); |
| 79 |
< |
if (!RS_BASE(rs)) |
| 80 |
< |
error(SYSTEM,"smInit_samples(): Unable to allocate memory"); |
| 78 |
> |
S_BASE(s) = (char *)malloc(n*SAMPSIZ + extra_points*POINTSIZ); |
| 79 |
> |
if (!S_BASE(s)) |
| 80 |
> |
error(SYSTEM,"sAlloc(): Unable to allocate memory"); |
| 81 |
|
|
| 82 |
|
/* assign larger alignment types earlier */ |
| 83 |
< |
RS_W_PT(rs) = (float (*)[3])RS_BASE(rs); |
| 84 |
< |
RS_W_DIR(rs) = (int4 *)(RS_W_PT(rs) + n + extra_points); |
| 85 |
< |
RS_BRT(rs) = (TMbright *)(RS_W_DIR(rs) + n + extra_points); |
| 86 |
< |
RS_CHR(rs) = (BYTE (*)[3])(RS_BRT(rs) + n); |
| 87 |
< |
RS_RGB(rs) = (BYTE (*)[3])(RS_CHR(rs) + n); |
| 88 |
< |
RS_MAX_SAMP(rs) = n; |
| 89 |
< |
RS_MAX_AUX_PT(rs) = n + extra_points; |
| 83 |
> |
S_W_PT(s) = (SFLOAT(*)[3])S_BASE(s); |
| 84 |
> |
S_W_DIR(s) = (int4 *)(S_W_PT(s) + n + extra_points); |
| 85 |
> |
S_BRT(s) = (TMbright *)(S_W_DIR(s) + n); |
| 86 |
> |
S_CHR(s) = (BYTE (*)[3])(S_BRT(s) + n); |
| 87 |
> |
S_RGB(s) = (BYTE (*)[3])(S_CHR(s) + n); |
| 88 |
> |
S_INFO(s) = (int *)(S_RGB(s)+n); |
| 89 |
> |
S_INFO1(s) = (int *)(S_INFO(s)+n+extra_points); |
| 90 |
> |
S_MAX_SAMP(s) = n; |
| 91 |
> |
S_MAX_BASE_PT(s) = n + extra_points; |
| 92 |
|
|
| 93 |
< |
smClear_samples(sm); |
| 93 |
> |
/* Allocate memory for a per/sample bit flag */ |
| 94 |
> |
if(!(samp_flag = (int4 *)malloc(FLAG_BYTES(n+extra_points)))) |
| 95 |
> |
error(SYSTEM,"sAlloc(): Unable to allocate flag memory"); |
| 96 |
> |
sInit(s); |
| 97 |
> |
sClear_all_flags(s); |
| 98 |
|
|
| 99 |
< |
return(n); |
| 99 |
> |
*nptr = n; |
| 100 |
> |
|
| 101 |
> |
return(s); |
| 102 |
|
} |
| 103 |
|
|
| 57 |
– |
smClear_aux_samples(sm) |
| 58 |
– |
SM *sm; |
| 59 |
– |
{ |
| 60 |
– |
RS_NEXT_AUX_PT(SM_SAMP(sm)) = RS_MAX_SAMP(SM_SAMP(sm)); |
| 61 |
– |
} |
| 104 |
|
|
| 105 |
+ |
/* Add a base point to the sample structure: only the world point |
| 106 |
+ |
is added: These points are not displayed-they are used to form the |
| 107 |
+ |
initial mesh |
| 108 |
+ |
*/ |
| 109 |
|
int |
| 110 |
< |
smClear_samples(sm) |
| 111 |
< |
SM *sm; |
| 110 |
> |
sAdd_base_point(s,v) |
| 111 |
> |
SAMP *s; |
| 112 |
> |
FVECT v; |
| 113 |
|
{ |
| 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; |
| 114 |
|
int id; |
| 115 |
< |
|
| 86 |
< |
/* Get the SM sample array */ |
| 87 |
< |
samp = SM_SAMP(sm); |
| 115 |
> |
|
| 116 |
|
/* Get pointer to next available point */ |
| 117 |
< |
id = RS_NEXT_AUX_PT(samp); |
| 118 |
< |
if(id >= RS_MAX_AUX_PT(samp)) |
| 117 |
> |
id = S_NEXT_BASE_PT(s); |
| 118 |
> |
if(id >= S_MAX_BASE_PT(s)) |
| 119 |
|
return(-1); |
| 120 |
|
|
| 121 |
|
/* Update free aux pointer */ |
| 122 |
< |
RS_NEXT_AUX_PT(samp)++; |
| 122 |
> |
S_NEXT_BASE_PT(s)++; |
| 123 |
|
|
| 124 |
|
/* Copy vector into point */ |
| 125 |
< |
VCOPY(RS_NTH_W_PT(samp,id),v); |
| 98 |
< |
RS_NTH_W_DIR(samp,id) = encodedir(d); |
| 125 |
> |
VCOPY(S_NTH_W_PT(s,id),v); |
| 126 |
|
return(id); |
| 127 |
|
} |
| 128 |
|
|
| 129 |
< |
void |
| 130 |
< |
smInit_sample(sm,id,c,d,p) |
| 131 |
< |
SM *sm; |
| 132 |
< |
int id; |
| 133 |
< |
COLR c; |
| 134 |
< |
FVECT d,p; |
| 129 |
> |
/* Copy the values of sample n_id into sample id: Note must not call with |
| 130 |
> |
Base point n_id |
| 131 |
> |
*/ |
| 132 |
> |
int |
| 133 |
> |
sCopy_samp(s,n_id,id) |
| 134 |
> |
SAMP *s; |
| 135 |
> |
int n_id,id; |
| 136 |
|
{ |
| 109 |
– |
RSAMP *samp; |
| 137 |
|
|
| 138 |
< |
samp = SM_SAMP(sm); |
| 139 |
< |
if(p) |
| 138 |
> |
#ifdef DEBUG |
| 139 |
> |
if(id <0||id >= S_MAX_SAMP(s)||n_id <0||n_id >= S_MAX_SAMP(s)) |
| 140 |
|
{ |
| 141 |
< |
/* Copy vector into point */ |
| 142 |
< |
VCOPY(RS_NTH_W_PT(samp,id),p); |
| 116 |
< |
RS_NTH_W_DIR(samp,id) = encodedir(d); |
| 141 |
> |
eputs("smReset_sample():invalid sample id\n"); |
| 142 |
> |
return(0); |
| 143 |
|
} |
| 118 |
– |
else |
| 119 |
– |
{ |
| 120 |
– |
VADD(RS_NTH_W_PT(samp,id),d,SM_VIEW_CENTER(sm)); |
| 121 |
– |
RS_NTH_W_DIR(samp,id) = -1; |
| 122 |
– |
} |
| 123 |
– |
|
| 124 |
– |
#ifndef TEST_DRIVER |
| 125 |
– |
tmCvColrs(&RS_NTH_BRT(samp,id),RS_NTH_CHR(samp,id),c,1); |
| 126 |
– |
#else |
| 127 |
– |
if(c) |
| 128 |
– |
{ |
| 129 |
– |
RS_NTH_RGB(samp,id)[0] = c[0]; |
| 130 |
– |
RS_NTH_RGB(samp,id)[1] = c[1]; |
| 131 |
– |
RS_NTH_RGB(samp,id)[2] = c[2]; |
| 132 |
– |
} |
| 133 |
– |
else |
| 134 |
– |
{ |
| 135 |
– |
RS_NTH_RGB(samp,id)[0] = 100; |
| 136 |
– |
RS_NTH_RGB(samp,id)[1] = 0; |
| 137 |
– |
RS_NTH_RGB(samp,id)[2] = 0; |
| 138 |
– |
} |
| 144 |
|
#endif |
| 145 |
+ |
if(n_id == id) |
| 146 |
+ |
return(1); |
| 147 |
+ |
/* Copy vector into point */ |
| 148 |
+ |
VCOPY(S_NTH_W_PT(s,n_id),S_NTH_W_PT(s,id)); |
| 149 |
+ |
S_NTH_W_DIR(s,n_id) = S_NTH_W_DIR(s,id); |
| 150 |
+ |
|
| 151 |
+ |
S_NTH_BRT(s,n_id) = S_NTH_BRT(s,id); |
| 152 |
+ |
S_NTH_CHR(s,n_id)[0] = S_NTH_CHR(s,id)[0]; |
| 153 |
+ |
S_NTH_CHR(s,n_id)[1] = S_NTH_CHR(s,id)[1]; |
| 154 |
+ |
S_NTH_CHR(s,n_id)[2] = S_NTH_CHR(s,id)[2]; |
| 155 |
+ |
|
| 156 |
+ |
return(1); |
| 157 |
|
} |
| 158 |
|
|
| 159 |
|
|
| 160 |
+ |
/* Initialize the sample 'id' to contain world point 'p', direction 'd' and |
| 161 |
+ |
color 'c'. If 'p' is NULL, a direction only is represented in 'd'. In |
| 162 |
+ |
this case, the world point is set to the projection of the direction on |
| 163 |
+ |
the view sphere, and the direction value is set to -1 |
| 164 |
+ |
*/ |
| 165 |
|
void |
| 166 |
< |
smReset_sample(sm,id,n_id) |
| 167 |
< |
SM *sm; |
| 168 |
< |
int id,n_id; |
| 166 |
> |
sInit_samp(s,id,c,d,p,o_id) |
| 167 |
> |
SAMP *s; |
| 168 |
> |
int id; |
| 169 |
> |
COLR c; |
| 170 |
> |
FVECT d,p; |
| 171 |
> |
int o_id; |
| 172 |
|
{ |
| 148 |
– |
RSAMP *samp; |
| 173 |
|
|
| 174 |
< |
samp = SM_SAMP(sm); |
| 175 |
< |
|
| 174 |
> |
if(o_id != INVALID) |
| 175 |
> |
sCopy_samp(s,id,o_id); |
| 176 |
> |
else |
| 177 |
> |
{ |
| 178 |
|
/* Copy vector into point */ |
| 179 |
< |
VCOPY(RS_NTH_W_PT(samp,id),RS_NTH_W_PT(samp,n_id)); |
| 180 |
< |
RS_NTH_W_DIR(samp,id) = RS_NTH_W_DIR(samp,n_id); |
| 179 |
> |
VCOPY(S_NTH_W_PT(s,id),p); |
| 180 |
> |
if(d) |
| 181 |
> |
S_NTH_W_DIR(s,id) = encodedir(d); |
| 182 |
> |
else |
| 183 |
> |
S_NTH_W_DIR(s,id) = -1; |
| 184 |
|
|
| 185 |
< |
RS_NTH_BRT(samp,id) = RS_NTH_BRT(samp,n_id); |
| 186 |
< |
RS_NTH_CHR(samp,id)[0] = RS_NTH_CHR(samp,n_id)[0]; |
| 187 |
< |
RS_NTH_CHR(samp,id)[1] = RS_NTH_CHR(samp,n_id)[1]; |
| 188 |
< |
RS_NTH_CHR(samp,id)[2] = RS_NTH_CHR(samp,n_id)[2]; |
| 189 |
< |
RS_NTH_RGB(samp,id)[0] = RS_NTH_RGB(samp,n_id)[0]; |
| 190 |
< |
RS_NTH_RGB(samp,id)[1] = RS_NTH_RGB(samp,n_id)[1]; |
| 191 |
< |
RS_NTH_RGB(samp,id)[2] = RS_NTH_RGB(samp,n_id)[2]; |
| 192 |
< |
|
| 185 |
> |
/* calculate the brightness and chrominance,RGB will be set by |
| 186 |
> |
tonemapping |
| 187 |
> |
*/ |
| 188 |
> |
#ifndef TEST_DRIVER |
| 189 |
> |
tmCvColrs(&S_NTH_BRT(s,id),S_NTH_CHR(s,id),c,1); |
| 190 |
> |
#endif |
| 191 |
> |
} |
| 192 |
> |
/* Set ACTIVE bit upon creation */ |
| 193 |
> |
S_SET_FLAG(id); |
| 194 |
> |
if(id < S_TONE_MAP(s)) |
| 195 |
> |
tmMapPixels(S_NTH_RGB(s,id),&S_NTH_BRT(s,id),S_NTH_CHR(s,id),1); |
| 196 |
|
} |
| 197 |
|
|
| 198 |
+ |
|
| 199 |
+ |
/* Allocate a new sample. If an existing sample was replaced: set flag */ |
| 200 |
|
int |
| 201 |
< |
rsAlloc_samp(samp,replaced) |
| 202 |
< |
RSAMP *samp; |
| 201 |
> |
sAlloc_samp(s,replaced) |
| 202 |
> |
SAMP *s; |
| 203 |
|
int *replaced; |
| 204 |
|
|
| 205 |
|
{ |
| 206 |
|
int id; |
| 207 |
|
|
| 208 |
< |
if(replaced) |
| 209 |
< |
*replaced = FALSE; |
| 176 |
< |
if(RS_NUM_SAMP(samp) < RS_MAX_SAMP(samp)) |
| 208 |
> |
/* First check if there are any freed sample available */ |
| 209 |
> |
if((id = S_FREE_SAMP(s)) != INVALID) |
| 210 |
|
{ |
| 211 |
< |
id = RS_NUM_SAMP(samp); |
| 212 |
< |
RS_NUM_SAMP(samp)++; |
| 213 |
< |
|
| 211 |
> |
*replaced = 0; |
| 212 |
> |
#if 0 |
| 213 |
> |
fprintf(stderr,"allocating previously freed sample %d\n",id); |
| 214 |
> |
#endif |
| 215 |
> |
S_FREE_SAMP(s) = S_NTH_NEXT(s,id); |
| 216 |
> |
return(id); |
| 217 |
|
} |
| 218 |
< |
else |
| 219 |
< |
if(RS_REPLACE_SAMP(samp) != -1) |
| 220 |
< |
{ |
| 221 |
< |
id = RS_REPLACE_SAMP(samp); |
| 222 |
< |
/* NOTE: NEED to do LRU later*/ |
| 223 |
< |
RS_REPLACE_SAMP(samp) = (id + 1)% RS_MAX_SAMP(samp); |
| 188 |
< |
if(replaced) |
| 189 |
< |
*replaced = TRUE; |
| 190 |
< |
} |
| 191 |
< |
else |
| 192 |
< |
if(RS_FREE_SAMP(samp) != -1) |
| 193 |
< |
{ |
| 194 |
< |
id = RS_FREE_SAMP(samp); |
| 195 |
< |
RS_FREE_SAMP(samp) = RS_NTH_W_DIR(samp,id); |
| 196 |
< |
} |
| 197 |
< |
else |
| 198 |
< |
{ |
| 199 |
< |
#ifdef DEBUG |
| 200 |
< |
eputs("rsAlloc_samp(): no samples available"); |
| 218 |
> |
/* If havn't reached end of sample array:return next sample */ |
| 219 |
> |
if(S_NUM_SAMP(s) < S_MAX_SAMP(s)) |
| 220 |
> |
{ |
| 221 |
> |
id = S_NUM_SAMP(s)++; |
| 222 |
> |
#if 0 |
| 223 |
> |
fprintf(stderr,"allocating sample %d\n",id); |
| 224 |
|
#endif |
| 225 |
< |
id = -1; |
| 226 |
< |
} |
| 227 |
< |
|
| 205 |
< |
return(id); |
| 206 |
< |
} |
| 225 |
> |
*replaced = 0; |
| 226 |
> |
return(id); |
| 227 |
> |
} |
| 228 |
|
|
| 229 |
< |
int |
| 209 |
< |
rsDelete_sample(samp,id) |
| 210 |
< |
RSAMP *samp; |
| 211 |
< |
int id; |
| 229 |
> |
#ifdef DEBUG |
| 230 |
|
{ |
| 231 |
< |
/* First check for a valid id */ |
| 232 |
< |
if(id >= RS_MAX_SAMP(samp) || id < 0) |
| 233 |
< |
return(FALSE); |
| 234 |
< |
|
| 235 |
< |
RS_NTH_W_DIR(samp,id) = RS_FREE_SAMP(samp); |
| 236 |
< |
RS_FREE_SAMP(samp) = id; |
| 219 |
< |
|
| 220 |
< |
return(TRUE); |
| 231 |
> |
static int replace = 0; |
| 232 |
> |
if(replace == 0) |
| 233 |
> |
{ |
| 234 |
> |
eputs("Out of samples: using replacement strategy\n"); |
| 235 |
> |
replace =1 ; |
| 236 |
> |
} |
| 237 |
|
} |
| 238 |
< |
|
| 223 |
< |
int |
| 224 |
< |
smDelete_sample(sm,id) |
| 225 |
< |
SM *sm; |
| 226 |
< |
int id; |
| 227 |
< |
{ |
| 228 |
< |
RSAMP *samp; |
| 229 |
< |
|
| 230 |
< |
samp = SM_SAMP(sm); |
| 231 |
< |
return(rsDelete_sample(samp,id)); |
| 232 |
< |
} |
| 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; |
| 238 |
> |
#endif |
| 239 |
|
|
| 240 |
< |
/* Get the SM sample array */ |
| 241 |
< |
samp = SM_SAMP(sm); |
| 242 |
< |
/* Get pointer to next available point */ |
| 243 |
< |
id = rsAlloc_samp(samp,&replaced); |
| 244 |
< |
if(id < 0) |
| 245 |
< |
return(-1); |
| 246 |
< |
|
| 247 |
< |
if(replaced) |
| 248 |
< |
smMesh_remove_vertex(sm,id); |
| 249 |
< |
|
| 250 |
< |
smInit_sample(sm,id,c,dir,p); |
| 251 |
< |
|
| 240 |
> |
/* CLOCKED LRU replacement policy: Search through samples starting |
| 241 |
> |
with S_REPLACE_SAMP for a sample that does not have its active |
| 242 |
> |
bit set. Clear bit along the way |
| 243 |
> |
*/ |
| 244 |
> |
id = S_REPLACE_SAMP(s); |
| 245 |
> |
while(S_IS_FLAG(id)) |
| 246 |
> |
{ |
| 247 |
> |
S_CLR_FLAG(id); |
| 248 |
> |
id = (id +1)% S_MAX_SAMP(s); |
| 249 |
> |
} |
| 250 |
> |
S_REPLACE_SAMP(s) = (id +1)% S_MAX_SAMP(s); |
| 251 |
> |
*replaced = 1; |
| 252 |
|
return(id); |
| 253 |
|
} |
| 254 |
+ |
|
| 255 |
+ |
|
| 256 |
|
|
| 257 |
|
|
| 258 |
|
|
