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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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#ifndef lint |
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< |
static char SCCSid[] = "$SunId$ SGI"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
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#endif |
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– |
|
| 4 |
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/* |
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* Quadtree driver support routines. |
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*/ |
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#include "standard.h" |
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#include "rhd_qtree.h" |
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+ |
/* quantity of leaves to free at a time */ |
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+ |
#ifndef LFREEPCT |
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+ |
#define LFREEPCT 25 |
| 13 |
+ |
#endif |
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+ |
/* maximum allowed angle difference (deg.) */ |
| 15 |
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#ifndef MAXANG |
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#define MAXANG 20 |
| 17 |
+ |
#endif |
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#if MAXANG>0 |
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+ |
#define MAXDIFF2 ( MAXANG*MAXANG * (PI*PI/180./180.)) |
| 20 |
+ |
#endif |
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|
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+ |
#define abs(i) ((i) < 0 ? -(i) : (i)) |
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+ |
|
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RTREE qtrunk; /* our quadtree trunk */ |
| 25 |
< |
double qtDepthEps = .02; /* epsilon to compare depths (z fraction) */ |
| 25 |
> |
double qtDepthEps = .05; /* epsilon to compare depths (z fraction) */ |
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int qtMinNodesiz = 2; /* minimum node dimension (pixels) */ |
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+ |
struct rleaves qtL; /* our pile of leaves */ |
| 28 |
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|
| 29 |
< |
static RLEAF *leafpile; /* our collection of leaf values */ |
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< |
static int nleaves; /* count of leaves in our pile */ |
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< |
static int bleaf, tleaf; /* bottom and top (next) leaf index (ring) */ |
| 29 |
> |
int rayqleft = 0; /* rays left to queue before flush */ |
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|
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+ |
static int4 falleaves; /* our list of fallen leaves */ |
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|
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+ |
#define composted(li) (qtL.bl <= qtL.tl ? \ |
| 34 |
+ |
((li) < qtL.bl || (li) >= qtL.tl) : \ |
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((li) < qtL.bl && (li) >= qtL.tl)) |
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+ |
|
| 37 |
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#define TBUNDLESIZ 409 /* number of twigs in a bundle */ |
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|
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static RTREE **twigbundle; /* free twig blocks (NULL term.) */ |
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static int nexttwig; /* next free twig */ |
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|
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static RTREE emptytree; /* empty tree for test below */ |
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|
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#define is_stump(t) (!bcmp((char *)(t), (char *)&emptytree, sizeof(RTREE))) |
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|
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static RTREE * |
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newtwig() /* allocate a twig */ |
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{ |
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} |
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bi = nexttwig / TBUNDLESIZ; |
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if (twigbundle[bi] == NULL) { /* new block */ |
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< |
twigbundle = (RTREE **)realloc((char *)twigbundle, |
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> |
twigbundle = (RTREE **)realloc((void *)twigbundle, |
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(bi+2)*sizeof(RTREE *)); |
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if (twigbundle == NULL) |
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goto memerr; |
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{ |
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register int i; |
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|
| 77 |
< |
if (tmTop != NULL) |
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< |
tmClearHisto(); |
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< |
bzero((char *)&qtrunk, sizeof(RTREE)); |
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nexttwig = 0; |
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> |
qtrunk.flgs = CH_ANY; /* chop down tree */ |
| 78 |
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if (twigbundle == NULL) |
| 79 |
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return; |
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+ |
i = (TBUNDLESIZ-1+nexttwig)/TBUNDLESIZ; |
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+ |
nexttwig = 0; |
| 82 |
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if (!really) { /* just clear allocated blocks */ |
| 83 |
< |
for (i = 0; twigbundle[i] != NULL; i++) |
| 83 |
> |
while (i--) |
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bzero((char *)twigbundle[i], TBUNDLESIZ*sizeof(RTREE)); |
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return; |
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} |
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/* else "really" means free up memory */ |
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for (i = 0; twigbundle[i] != NULL; i++) |
| 89 |
< |
free((char *)twigbundle[i]); |
| 90 |
< |
free((char *)twigbundle); |
| 89 |
> |
free((void *)twigbundle[i]); |
| 90 |
> |
free((void *)twigbundle); |
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twigbundle = NULL; |
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} |
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|
| 94 |
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|
| 95 |
< |
static RLEAF * |
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< |
newleaf() /* allocate a leaf from our pile */ |
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< |
{ |
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< |
if (tleaf++ >= nleaves) /* get next leaf in ring */ |
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tleaf = 0; |
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< |
if (tleaf == bleaf) /* need to shake some free */ |
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< |
qtCompost(LFREEPCT); |
| 92 |
< |
return(leafpile + tleaf); |
| 93 |
< |
} |
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> |
#define LEAFSIZ (3*sizeof(float)+sizeof(int4)+\ |
| 96 |
> |
sizeof(TMbright)+6*sizeof(BYTE)) |
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|
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|
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int |
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qtAllocLeaves(n) /* allocate space for n leaves */ |
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< |
int n; |
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> |
register int n; |
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{ |
| 102 |
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unsigned nbytes; |
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register unsigned i; |
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qtFreeTree(0); /* make sure tree is empty */ |
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if (n <= 0) |
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return(0); |
| 108 |
< |
if (nleaves >= n) |
| 109 |
< |
return(nleaves); |
| 110 |
< |
else if (nleaves > 0) |
| 111 |
< |
free((char *)leafpile); |
| 108 |
> |
if (qtL.nl >= n) |
| 109 |
> |
return(qtL.nl); |
| 110 |
> |
else if (qtL.nl > 0) |
| 111 |
> |
free(qtL.base); |
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/* round space up to nearest power of 2 */ |
| 113 |
< |
nbytes = n*sizeof(RLEAF) + 8; |
| 113 |
> |
nbytes = n*LEAFSIZ + 8; |
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for (i = 1024; nbytes > i; i <<= 1) |
| 115 |
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; |
| 116 |
< |
n = (i - 8) / sizeof(RLEAF); |
| 117 |
< |
leafpile = (RLEAF *)malloc(n*sizeof(RLEAF)); |
| 118 |
< |
if (leafpile == NULL) |
| 119 |
< |
return(-1); |
| 120 |
< |
nleaves = n; |
| 121 |
< |
bleaf = tleaf = 0; |
| 122 |
< |
return(nleaves); |
| 116 |
> |
n = (i - 8) / LEAFSIZ; /* should we make sure n is even? */ |
| 117 |
> |
qtL.base = (char *)malloc(n*LEAFSIZ); |
| 118 |
> |
if (qtL.base == NULL) |
| 119 |
> |
return(0); |
| 120 |
> |
/* assign larger alignment types earlier */ |
| 121 |
> |
qtL.wp = (float (*)[3])qtL.base; |
| 122 |
> |
qtL.wd = (int4 *)(qtL.wp + n); |
| 123 |
> |
qtL.brt = (TMbright *)(qtL.wd + n); |
| 124 |
> |
qtL.chr = (BYTE (*)[3])(qtL.brt + n); |
| 125 |
> |
qtL.rgb = (BYTE (*)[3])(qtL.chr + n); |
| 126 |
> |
qtL.nl = n; |
| 127 |
> |
qtL.tml = qtL.bl = qtL.tl = 0; |
| 128 |
> |
falleaves = -1; |
| 129 |
> |
return(n); |
| 130 |
|
} |
| 131 |
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|
| 132 |
+ |
#undef LEAFSIZ |
| 133 |
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|
| 134 |
+ |
|
| 135 |
|
qtFreeLeaves() /* free our allocated leaves and twigs */ |
| 136 |
|
{ |
| 137 |
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qtFreeTree(1); /* free tree also */ |
| 138 |
< |
if (nleaves <= 0) |
| 138 |
> |
if (qtL.nl <= 0) |
| 139 |
|
return; |
| 140 |
< |
free((char *)leafpile); |
| 141 |
< |
leafpile = NULL; |
| 142 |
< |
nleaves = 0; |
| 140 |
> |
free(qtL.base); |
| 141 |
> |
qtL.base = NULL; |
| 142 |
> |
qtL.nl = 0; |
| 143 |
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} |
| 144 |
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|
| 145 |
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|
| 150 |
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register int i, li; |
| 151 |
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|
| 152 |
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for (i = 0; i < 4; i++) |
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< |
if (tp->flgs & BRF(i)) |
| 153 |
> |
if (tp->flgs & BRF(i)) { |
| 154 |
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shaketree(tp->k[i].b); |
| 155 |
< |
else if (tp->k[i].l != NULL) { |
| 156 |
< |
li = tp->k[i].l - leafpile; |
| 157 |
< |
if (bleaf < tleaf ? (li < bleaf || li >= tleaf) : |
| 158 |
< |
(li < bleaf && li >= tleaf)) { |
| 159 |
< |
tmAddHisto(&tp->k[i].l->brt, 1, -1); |
| 160 |
< |
tp->k[i].l = NULL; |
| 150 |
< |
} |
| 155 |
> |
if (is_stump(tp->k[i].b)) |
| 156 |
> |
tp->flgs &= ~BRF(i); |
| 157 |
> |
} else if (tp->flgs & LFF(i)) { |
| 158 |
> |
li = tp->k[i].li; |
| 159 |
> |
if (composted(li)) |
| 160 |
> |
tp->flgs &= ~LFF(i); |
| 161 |
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} |
| 162 |
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} |
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|
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qtCompost(pct) /* free up some leaves */ |
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int pct; |
| 168 |
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{ |
| 169 |
< |
int nused, nclear; |
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> |
register int4 *fl; |
| 170 |
> |
int nused, nclear, nmapped; |
| 171 |
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/* figure out how many leaves to clear */ |
| 172 |
< |
nclear = nleaves * pct / 100; |
| 172 |
> |
nclear = qtL.nl * pct / 100; |
| 173 |
> |
nused = qtL.tl - qtL.bl; |
| 174 |
> |
if (nused <= 0) nused += qtL.nl; |
| 175 |
> |
nclear -= qtL.nl - nused; |
| 176 |
|
if (nclear <= 0) |
| 177 |
|
return(0); |
| 164 |
– |
nused = tleaf > bleaf ? tleaf-bleaf : tleaf+nleaves-bleaf; |
| 178 |
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if (nclear >= nused) { /* clear them all */ |
| 179 |
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qtFreeTree(0); |
| 180 |
< |
bleaf = tleaf = 0; |
| 180 |
> |
qtL.tml = qtL.bl = qtL.tl = 0; |
| 181 |
> |
falleaves = -1; |
| 182 |
|
return(nused); |
| 183 |
|
} |
| 184 |
|
/* else clear leaves from bottom */ |
| 185 |
< |
bleaf = (bleaf + nclear) % nleaves; |
| 186 |
< |
shaketree(&qtrunk); |
| 185 |
> |
nmapped = qtL.tml - qtL.bl; |
| 186 |
> |
if (nmapped < 0) nmapped += qtL.nl; |
| 187 |
> |
qtL.bl += nclear; |
| 188 |
> |
if (qtL.bl >= qtL.nl) qtL.bl -= qtL.nl; |
| 189 |
> |
if (nmapped <= nclear) qtL.tml = qtL.bl; |
| 190 |
> |
shaketree(&qtrunk); /* dereference composted leaves */ |
| 191 |
> |
for (fl = &falleaves; *fl >= 0; fl = qtL.wd + *fl) |
| 192 |
> |
while (composted(*fl)) |
| 193 |
> |
if ((*fl = qtL.wd[*fl]) < 0) |
| 194 |
> |
return(nclear); |
| 195 |
|
return(nclear); |
| 196 |
|
} |
| 197 |
|
|
| 198 |
|
|
| 199 |
< |
RLEAF * |
| 199 |
> |
int |
| 200 |
|
qtFindLeaf(x, y) /* find closest leaf to (x,y) */ |
| 201 |
|
int x, y; |
| 202 |
|
{ |
| 203 |
|
register RTREE *tp = &qtrunk; |
| 204 |
< |
RLEAF *lp = NULL; |
| 204 |
> |
int li = -1; |
| 205 |
|
int x0=0, y0=0, x1=odev.hres, y1=odev.vres; |
| 206 |
|
int mx, my; |
| 207 |
|
register int q; |
| 208 |
|
/* check limits */ |
| 209 |
|
if (x < 0 || x >= odev.hres || y < 0 || y >= odev.vres) |
| 210 |
< |
return(NULL); |
| 210 |
> |
return(-1); |
| 211 |
|
/* find nearby leaf in our tree */ |
| 212 |
|
for ( ; ; ) { |
| 213 |
|
for (q = 0; q < 4; q++) /* find any leaf this level */ |
| 214 |
< |
if (!(tp->flgs & BRF(q)) && tp->k[q].l != NULL) { |
| 215 |
< |
lp = tp->k[q].l; |
| 214 |
> |
if (tp->flgs & LFF(q)) { |
| 215 |
> |
li = tp->k[q].li; |
| 216 |
|
break; |
| 217 |
|
} |
| 218 |
|
q = 0; /* which quadrant are we? */ |
| 226 |
|
tp = tp->k[q].b; |
| 227 |
|
continue; |
| 228 |
|
} |
| 229 |
< |
if (tp->k[q].l != NULL) /* good shot! */ |
| 230 |
< |
return(tp->k[q].l); |
| 231 |
< |
return(lp); /* else return what we have */ |
| 229 |
> |
if (tp->flgs & LFF(q)) /* good shot! */ |
| 230 |
> |
return(tp->k[q].li); |
| 231 |
> |
return(li); /* else return what we have */ |
| 232 |
|
} |
| 233 |
|
} |
| 234 |
|
|
| 235 |
|
|
| 236 |
|
static |
| 237 |
< |
addleaf(lp) /* add a leaf to our tree */ |
| 238 |
< |
RLEAF *lp; |
| 237 |
> |
putleaf(li, drop) /* put a leaf in our tree */ |
| 238 |
> |
register int li; |
| 239 |
> |
int drop; |
| 240 |
|
{ |
| 241 |
|
register RTREE *tp = &qtrunk; |
| 242 |
|
int x0=0, y0=0, x1=odev.hres, y1=odev.vres; |
| 243 |
< |
RLEAF *lo = NULL; |
| 243 |
> |
register int lo = -1; |
| 244 |
> |
double d2; |
| 245 |
|
int x, y, mx, my; |
| 246 |
|
double z; |
| 247 |
< |
FVECT ip, wp; |
| 247 |
> |
FVECT ip, wp, vd; |
| 248 |
|
register int q; |
| 249 |
< |
/* compute leaf location */ |
| 250 |
< |
VCOPY(wp, lp->wp); |
| 249 |
> |
/* check for dead leaf */ |
| 250 |
> |
if (!qtL.chr[li][1] && !(qtL.chr[li][0] | qtL.chr[li][2])) |
| 251 |
> |
return(0); |
| 252 |
> |
/* compute leaf location in view */ |
| 253 |
> |
VCOPY(wp, qtL.wp[li]); |
| 254 |
|
viewloc(ip, &odev.v, wp); |
| 255 |
|
if (ip[2] <= 0. || ip[0] < 0. || ip[0] >= 1. |
| 256 |
|
|| ip[1] < 0. || ip[1] >= 1.) |
| 257 |
< |
return; |
| 257 |
> |
goto dropit; /* behind or outside view */ |
| 258 |
> |
#ifdef DEBUG |
| 259 |
> |
if (odev.v.type == VT_PAR | odev.v.vfore > FTINY) |
| 260 |
> |
error(INTERNAL, "bad view assumption in putleaf"); |
| 261 |
> |
#endif |
| 262 |
> |
for (q = 0; q < 3; q++) |
| 263 |
> |
vd[q] = (wp[q] - odev.v.vp[q])/ip[2]; |
| 264 |
> |
d2 = fdir2diff(qtL.wd[li], vd); |
| 265 |
> |
#ifdef MAXDIFF2 |
| 266 |
> |
if (d2 > MAXDIFF2) |
| 267 |
> |
goto dropit; /* leaf dir. too far off */ |
| 268 |
> |
#endif |
| 269 |
|
x = ip[0] * odev.hres; |
| 270 |
|
y = ip[1] * odev.vres; |
| 271 |
|
z = ip[2]; |
| 283 |
|
tp = tp->k[q].b; |
| 284 |
|
continue; |
| 285 |
|
} |
| 286 |
< |
if (tp->k[q].l == NULL) { /* found stem for leaf */ |
| 287 |
< |
tp->k[q].l = lp; |
| 288 |
< |
tp->flgs |= CHF(q); |
| 289 |
< |
break; |
| 286 |
> |
if (!(tp->flgs & LFF(q))) { /* found stem for leaf */ |
| 287 |
> |
tp->k[q].li = li; |
| 288 |
> |
tp->flgs |= CHLFF(q); |
| 289 |
> |
return(1); |
| 290 |
|
} |
| 291 |
< |
/* check existing leaf */ |
| 292 |
< |
if (lo != tp->k[q].l) { |
| 293 |
< |
lo = tp->k[q].l; |
| 256 |
< |
VCOPY(wp, lo->wp); |
| 291 |
> |
if (lo != tp->k[q].li) { /* check old leaf */ |
| 292 |
> |
lo = tp->k[q].li; |
| 293 |
> |
VCOPY(wp, qtL.wp[lo]); |
| 294 |
|
viewloc(ip, &odev.v, wp); |
| 295 |
|
} |
| 296 |
|
/* is node minimum size? */ |
| 297 |
< |
if (x1-x0 <= qtMinNodesiz || y1-y0 <= qtMinNodesiz) { |
| 298 |
< |
if (z > (1.-qtDepthEps)*ip[2]) /* who is closer? */ |
| 299 |
< |
return; /* old one is */ |
| 300 |
< |
tp->k[q].l = lp; /* new one is */ |
| 297 |
> |
if (y1-y0 <= qtMinNodesiz || x1-x0 <= qtMinNodesiz) { |
| 298 |
> |
if (z > (1.+qtDepthEps)*ip[2]) |
| 299 |
> |
break; /* old one closer */ |
| 300 |
> |
if (z >= (1.-qtDepthEps)*ip[2] && |
| 301 |
> |
fdir2diff(qtL.wd[lo], vd) < d2) |
| 302 |
> |
break; /* old one better */ |
| 303 |
> |
tp->k[q].li = li; /* attach new */ |
| 304 |
|
tp->flgs |= CHF(q); |
| 305 |
< |
tmAddHisto(&lo->brt, 1, -1); /* drop old one */ |
| 305 |
> |
li = lo; /* drop old... */ |
| 306 |
|
break; |
| 307 |
|
} |
| 308 |
< |
tp->flgs |= CHBRF(q); /* else grow tree */ |
| 308 |
> |
tp->flgs &= ~LFF(q); /* else grow tree */ |
| 309 |
> |
tp->flgs |= CHBRF(q); |
| 310 |
|
tp = tp->k[q].b = newtwig(); |
| 270 |
– |
tp->flgs |= CH_ANY; /* all new */ |
| 311 |
|
q = 0; /* old leaf -> new branch */ |
| 312 |
|
mx = ip[0] * odev.hres; |
| 313 |
|
my = ip[1] * odev.vres; |
| 314 |
|
if (mx >= (x0 + x1) >> 1) q |= 01; |
| 315 |
|
if (my >= (y0 + y1) >> 1) q |= 02; |
| 316 |
< |
tp->k[q].l = lo; |
| 316 |
> |
tp->flgs = CH_ANY|LFF(q); /* all new */ |
| 317 |
> |
tp->k[q].li = lo; |
| 318 |
|
} |
| 319 |
< |
tmAddHisto(&lp->brt, 1, 1); /* add leaf to histogram */ |
| 319 |
> |
dropit: |
| 320 |
> |
if (drop) |
| 321 |
> |
if (li+1 == (qtL.tl ? qtL.tl : qtL.nl)) |
| 322 |
> |
qtL.tl = li; /* special case */ |
| 323 |
> |
else { |
| 324 |
> |
qtL.chr[li][0] = qtL.chr[li][1] = qtL.chr[li][2] = 0; |
| 325 |
> |
qtL.wd[li] = falleaves; |
| 326 |
> |
falleaves = li; |
| 327 |
> |
} |
| 328 |
> |
return(li == lo); |
| 329 |
|
} |
| 330 |
|
|
| 331 |
|
|
| 332 |
< |
dev_value(c, p) /* add a pixel value to our output queue */ |
| 332 |
> |
dev_value(c, d, p) /* add a pixel value to our quadtree */ |
| 333 |
|
COLR c; |
| 334 |
< |
FVECT p; |
| 334 |
> |
FVECT d, p; |
| 335 |
|
{ |
| 336 |
< |
register RLEAF *lp; |
| 337 |
< |
|
| 338 |
< |
lp = newleaf(); |
| 339 |
< |
VCOPY(lp->wp, p); |
| 340 |
< |
tmCvColrs(&lp->brt, lp->chr, c, 1); |
| 341 |
< |
addleaf(lp); |
| 336 |
> |
register int li; |
| 337 |
> |
int mapit; |
| 338 |
> |
/* grab a leaf */ |
| 339 |
> |
if (!imm_mode && falleaves >= 0) { /* check for fallen leaves */ |
| 340 |
> |
li = falleaves; |
| 341 |
> |
falleaves = qtL.wd[li]; |
| 342 |
> |
mapit = qtL.tml <= qtL.tl ? |
| 343 |
> |
(li < qtL.tml || li >= qtL.tl) : |
| 344 |
> |
(li < qtL.tml && li >= qtL.tl) ; |
| 345 |
> |
} else { /* else allocate new one */ |
| 346 |
> |
li = qtL.tl++; |
| 347 |
> |
if (qtL.tl >= qtL.nl) /* next leaf in ring */ |
| 348 |
> |
qtL.tl = 0; |
| 349 |
> |
if (qtL.tl == qtL.bl) /* need to shake some free */ |
| 350 |
> |
qtCompost(LFREEPCT); |
| 351 |
> |
mapit = 0; /* we'll map it later */ |
| 352 |
> |
} |
| 353 |
> |
if (p == NULL) |
| 354 |
> |
VSUM(qtL.wp[li], odev.v.vp, d, FHUGE); |
| 355 |
> |
else |
| 356 |
> |
VCOPY(qtL.wp[li], p); |
| 357 |
> |
qtL.wd[li] = encodedir(d); |
| 358 |
> |
tmCvColrs(&qtL.brt[li], qtL.chr[li], (COLR *)c, 1); |
| 359 |
> |
if (putleaf(li, 1)) { |
| 360 |
> |
if (mapit) |
| 361 |
> |
tmMapPixels((BYTE *)(qtL.rgb+li), qtL.brt+li, |
| 362 |
> |
(BYTE *)(qtL.chr+li), 1); |
| 363 |
> |
if (--rayqleft == 0) |
| 364 |
> |
dev_flush(); /* flush output */ |
| 365 |
> |
} |
| 366 |
|
} |
| 367 |
|
|
| 368 |
|
|
| 369 |
|
qtReplant() /* replant our tree using new view */ |
| 370 |
|
{ |
| 371 |
|
register int i; |
| 372 |
< |
|
| 373 |
< |
if (bleaf == tleaf) /* anything to replant? */ |
| 372 |
> |
/* anything to replant? */ |
| 373 |
> |
if (qtL.bl == qtL.tl) |
| 374 |
|
return; |
| 375 |
< |
qtFreeTree(0); /* blow the tree away */ |
| 376 |
< |
/* now rebuild it */ |
| 377 |
< |
for (i = bleaf; i != tleaf; ) { |
| 378 |
< |
addleaf(leafpile+i); |
| 379 |
< |
if (++i >= nleaves) i = 0; |
| 375 |
> |
qtFreeTree(0); /* blow the old tree away */ |
| 376 |
> |
/* regrow it in new place */ |
| 377 |
> |
for (i = qtL.bl; i != qtL.tl; ) { |
| 378 |
> |
putleaf(i, 0); |
| 379 |
> |
if (++i >= qtL.nl) i = 0; |
| 380 |
|
} |
| 307 |
– |
tmComputeMapping(0., 0., 0.); /* update the display */ |
| 308 |
– |
qtUpdate(); |
| 381 |
|
} |
| 382 |
|
|
| 383 |
|
|
| 384 |
< |
static |
| 385 |
< |
redraw(ca, tp, x0, y0, x1, y1, l) /* redraw portion of a tree */ |
| 314 |
< |
BYTE ca[3]; /* returned average color */ |
| 315 |
< |
register RTREE *tp; |
| 316 |
< |
int x0, y0, x1, y1; |
| 317 |
< |
int l[2][2]; |
| 384 |
> |
qtMapLeaves(redo) /* map our leaves to RGB */ |
| 385 |
> |
int redo; |
| 386 |
|
{ |
| 387 |
< |
int csm[3], nc; |
| 388 |
< |
BYTE rgb[3]; |
| 389 |
< |
int quads = CH_ANY; |
| 390 |
< |
int mx, my; |
| 391 |
< |
register int i; |
| 392 |
< |
/* compute midpoint */ |
| 393 |
< |
mx = (x0 + x1) >> 1; |
| 394 |
< |
my = (y0 + y1) >> 1; |
| 395 |
< |
/* see what to do */ |
| 396 |
< |
if (l[0][0] >= mx) |
| 397 |
< |
quads &= ~(CHF(2)|CHF(0)); |
| 398 |
< |
else if (l[0][1] <= mx) |
| 331 |
< |
quads &= ~(CHF(3)|CHF(1)); |
| 332 |
< |
if (l[1][0] >= my) |
| 333 |
< |
quads &= ~(CHF(1)|CHF(0)); |
| 334 |
< |
else if (l[1][1] <= my) |
| 335 |
< |
quads &= ~(CHF(3)|CHF(2)); |
| 336 |
< |
tp->flgs &= ~quads; /* mark them done */ |
| 337 |
< |
csm[0] = csm[1] = csm[2] = nc = 0; |
| 338 |
< |
/* do leaves first */ |
| 339 |
< |
for (i = 0; i < 4; i++) |
| 340 |
< |
if (quads & CHF(i) && !(tp->flgs & BRF(i)) && |
| 341 |
< |
tp->k[i].l != NULL) { |
| 342 |
< |
tmMapPixels(rgb, &tp->k[i].l->brt, tp->k[i].l->chr, 1); |
| 343 |
< |
dev_paintr(rgb, i&01 ? mx : x0, i&02 ? my : y0, |
| 344 |
< |
i&01 ? x1 : mx, i&02 ? y1 : my); |
| 345 |
< |
csm[0] += rgb[0]; csm[1] += rgb[1]; csm[2] += rgb[2]; |
| 346 |
< |
nc++; |
| 347 |
< |
quads &= ~CHF(i); |
| 348 |
< |
} |
| 349 |
< |
/* now do branches */ |
| 350 |
< |
for (i = 0; i < 4; i++) |
| 351 |
< |
if (quads & CHF(i) && tp->flgs & BRF(i)) { |
| 352 |
< |
redraw(rgb, tp->k[i].b, i&01 ? mx : x0, i&02 ? my : y0, |
| 353 |
< |
i&01 ? x1 : mx, i&02 ? y1 : my, l); |
| 354 |
< |
csm[0] += rgb[0]; csm[1] += rgb[1]; csm[2] += rgb[2]; |
| 355 |
< |
nc++; |
| 356 |
< |
quads &= ~CHF(i); |
| 357 |
< |
} |
| 358 |
< |
if (nc > 1) { |
| 359 |
< |
ca[0] = csm[0]/nc; ca[1] = csm[1]/nc; ca[2] = csm[2]/nc; |
| 387 |
> |
int aorg, alen, borg, blen; |
| 388 |
> |
/* recompute mapping? */ |
| 389 |
> |
if (redo) |
| 390 |
> |
qtL.tml = qtL.bl; |
| 391 |
> |
/* already done? */ |
| 392 |
> |
if (qtL.tml == qtL.tl) |
| 393 |
> |
return(1); |
| 394 |
> |
/* compute segments */ |
| 395 |
> |
aorg = qtL.tml; |
| 396 |
> |
if (qtL.tl >= aorg) { |
| 397 |
> |
alen = qtL.tl - aorg; |
| 398 |
> |
blen = 0; |
| 399 |
|
} else { |
| 400 |
< |
ca[0] = csm[0]; ca[1] = csm[1]; ca[2] = csm[2]; |
| 400 |
> |
alen = qtL.nl - aorg; |
| 401 |
> |
borg = 0; |
| 402 |
> |
blen = qtL.tl; |
| 403 |
|
} |
| 404 |
< |
if (!quads) return; |
| 405 |
< |
/* fill in gaps with average */ |
| 406 |
< |
for (i = 0; i < 4; i++) |
| 407 |
< |
if (quads & CHF(i)) |
| 408 |
< |
dev_paintr(ca, i&01 ? mx : x0, i&02 ? my : y0, |
| 409 |
< |
i&01 ? x1 : mx, i&02 ? y1 : my); |
| 410 |
< |
} |
| 411 |
< |
|
| 371 |
< |
|
| 372 |
< |
static |
| 373 |
< |
update(ca, tp, x0, y0, x1, y1) /* update tree display as needed */ |
| 374 |
< |
BYTE ca[3]; /* returned average color */ |
| 375 |
< |
register RTREE *tp; |
| 376 |
< |
int x0, y0, x1, y1; |
| 377 |
< |
{ |
| 378 |
< |
int csm[3], nc; |
| 379 |
< |
BYTE rgb[3]; |
| 380 |
< |
int gaps = 0; |
| 381 |
< |
int mx, my; |
| 382 |
< |
register int i; |
| 383 |
< |
/* compute midpoint */ |
| 384 |
< |
mx = (x0 + x1) >> 1; |
| 385 |
< |
my = (y0 + y1) >> 1; |
| 386 |
< |
csm[0] = csm[1] = csm[2] = nc = 0; |
| 387 |
< |
/* do leaves first */ |
| 388 |
< |
for (i = 0; i < 4; i++) |
| 389 |
< |
if ((tp->flgs & CHBRF(i)) == CHF(i)) { |
| 390 |
< |
if (tp->k[i].l == NULL) { |
| 391 |
< |
gaps |= 1<<i; /* empty stem */ |
| 392 |
< |
continue; |
| 393 |
< |
} |
| 394 |
< |
tmMapPixels(rgb, &tp->k[i].l->brt, tp->k[i].l->chr, 1); |
| 395 |
< |
dev_paintr(rgb, i&01 ? mx : x0, i&02 ? my : y0, |
| 396 |
< |
i&01 ? x1 : mx, i&02 ? y1 : my); |
| 397 |
< |
csm[0] += rgb[0]; csm[1] += rgb[1]; csm[2] += rgb[2]; |
| 398 |
< |
nc++; |
| 399 |
< |
} |
| 400 |
< |
/* now do branches */ |
| 401 |
< |
for (i = 0; i < 4; i++) |
| 402 |
< |
if ((tp->flgs & CHBRF(i)) == CHBRF(i)) { |
| 403 |
< |
update(rgb, tp->k[i].b, i&01 ? mx : x0, i&02 ? my : y0, |
| 404 |
< |
i&01 ? x1 : mx, i&02 ? y1 : my); |
| 405 |
< |
csm[0] += rgb[0]; csm[1] += rgb[1]; csm[2] += rgb[2]; |
| 406 |
< |
nc++; |
| 407 |
< |
} |
| 408 |
< |
if (nc > 1) { |
| 409 |
< |
ca[0] = csm[0]/nc; ca[1] = csm[1]/nc; ca[2] = csm[2]/nc; |
| 410 |
< |
} else { |
| 411 |
< |
ca[0] = csm[0]; ca[1] = csm[1]; ca[2] = csm[2]; |
| 404 |
> |
/* (re)compute tone mapping? */ |
| 405 |
> |
if (qtL.tml == qtL.bl) { |
| 406 |
> |
tmClearHisto(); |
| 407 |
> |
tmAddHisto(qtL.brt+aorg, alen, 1); |
| 408 |
> |
if (blen > 0) |
| 409 |
> |
tmAddHisto(qtL.brt+borg, blen, 1); |
| 410 |
> |
if (tmComputeMapping(0., 0., 0.) != TM_E_OK) |
| 411 |
> |
return(0); |
| 412 |
|
} |
| 413 |
< |
/* fill in gaps with average */ |
| 414 |
< |
for (i = 0; gaps && i < 4; gaps >>= 1, i++) |
| 415 |
< |
if (gaps & 01) |
| 416 |
< |
dev_paintr(ca, i&01 ? mx : x0, i&02 ? my : y0, |
| 417 |
< |
i&01 ? x1 : mx, i&02 ? y1 : my); |
| 418 |
< |
tp->flgs &= ~CH_ANY; /* all done */ |
| 419 |
< |
} |
| 420 |
< |
|
| 421 |
< |
|
| 422 |
< |
qtRedraw(x0, y0, x1, y1) /* redraw part of our screen */ |
| 423 |
< |
int x0, y0, x1, y1; |
| 424 |
< |
{ |
| 425 |
< |
int lim[2][2]; |
| 426 |
< |
BYTE ca[3]; |
| 427 |
< |
|
| 428 |
< |
if (is_stump(&qtrunk)) |
| 429 |
< |
return; |
| 430 |
< |
if ((lim[0][0]=x0) == 0 & (lim[1][0]=y0) == 0 & |
| 431 |
< |
(lim[0][1]=x1) == odev.hres & (lim[1][1]=y1) == odev.vres || |
| 432 |
< |
tmTop->lumap == NULL) |
| 433 |
< |
tmComputeMapping(0., 0., 0.); |
| 434 |
< |
redraw(ca, &qtrunk, 0, 0, odev.hres, odev.vres, lim); |
| 435 |
< |
} |
| 436 |
< |
|
| 437 |
< |
|
| 438 |
< |
qtUpdate() /* update our tree display */ |
| 439 |
< |
{ |
| 440 |
< |
BYTE ca[3]; |
| 441 |
< |
|
| 442 |
< |
if (is_stump(&qtrunk)) |
| 443 |
< |
return; |
| 444 |
< |
if (tmTop->lumap == NULL) |
| 445 |
< |
tmComputeMapping(0., 0., 0.); |
| 446 |
< |
update(ca, &qtrunk, 0, 0, odev.hres, odev.vres); |
| 413 |
> |
if (tmMapPixels((BYTE *)(qtL.rgb+aorg), qtL.brt+aorg, |
| 414 |
> |
(BYTE *)(qtL.chr+aorg), alen) != TM_E_OK) |
| 415 |
> |
return(0); |
| 416 |
> |
if (blen > 0) |
| 417 |
> |
tmMapPixels((BYTE *)(qtL.rgb+borg), qtL.brt+borg, |
| 418 |
> |
(BYTE *)(qtL.chr+borg), blen); |
| 419 |
> |
qtL.tml = qtL.tl; |
| 420 |
> |
return(1); |
| 421 |
|
} |
