| 7 |
|
* External symbols declared in rpaint.h |
| 8 |
|
*/ |
| 9 |
|
|
| 10 |
< |
/* ==================================================================== |
| 11 |
< |
* The Radiance Software License, Version 1.0 |
| 12 |
< |
* |
| 13 |
< |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
| 14 |
< |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
| 15 |
< |
* |
| 16 |
< |
* Redistribution and use in source and binary forms, with or without |
| 17 |
< |
* modification, are permitted provided that the following conditions |
| 18 |
< |
* are met: |
| 19 |
< |
* |
| 20 |
< |
* 1. Redistributions of source code must retain the above copyright |
| 21 |
< |
* notice, this list of conditions and the following disclaimer. |
| 22 |
< |
* |
| 23 |
< |
* 2. Redistributions in binary form must reproduce the above copyright |
| 24 |
< |
* notice, this list of conditions and the following disclaimer in |
| 25 |
< |
* the documentation and/or other materials provided with the |
| 26 |
< |
* distribution. |
| 27 |
< |
* |
| 28 |
< |
* 3. The end-user documentation included with the redistribution, |
| 29 |
< |
* if any, must include the following acknowledgment: |
| 30 |
< |
* "This product includes Radiance software |
| 31 |
< |
* (http://radsite.lbl.gov/) |
| 32 |
< |
* developed by the Lawrence Berkeley National Laboratory |
| 33 |
< |
* (http://www.lbl.gov/)." |
| 34 |
< |
* Alternately, this acknowledgment may appear in the software itself, |
| 35 |
< |
* if and wherever such third-party acknowledgments normally appear. |
| 36 |
< |
* |
| 37 |
< |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
| 38 |
< |
* and "The Regents of the University of California" must |
| 39 |
< |
* not be used to endorse or promote products derived from this |
| 40 |
< |
* software without prior written permission. For written |
| 41 |
< |
* permission, please contact [email protected]. |
| 42 |
< |
* |
| 43 |
< |
* 5. Products derived from this software may not be called "Radiance", |
| 44 |
< |
* nor may "Radiance" appear in their name, without prior written |
| 45 |
< |
* permission of Lawrence Berkeley National Laboratory. |
| 46 |
< |
* |
| 47 |
< |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| 48 |
< |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 49 |
< |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 50 |
< |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
| 51 |
< |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 52 |
< |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 53 |
< |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 54 |
< |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 55 |
< |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 56 |
< |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 57 |
< |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 58 |
< |
* SUCH DAMAGE. |
| 59 |
< |
* ==================================================================== |
| 60 |
< |
* |
| 61 |
< |
* This software consists of voluntary contributions made by many |
| 62 |
< |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
| 63 |
< |
* information on Lawrence Berkeley National Laboratory, please see |
| 64 |
< |
* <http://www.lbl.gov/>. |
| 65 |
< |
*/ |
| 10 |
> |
#include "copyright.h" |
| 11 |
|
|
| 12 |
< |
#include "ray.h" |
| 12 |
> |
#include <string.h> |
| 13 |
|
|
| 14 |
+ |
#include "ray.h" |
| 15 |
|
#include "rpaint.h" |
| 70 |
– |
|
| 16 |
|
#include "random.h" |
| 17 |
|
|
| 18 |
|
#ifndef WFLUSH |
| 19 |
< |
#ifdef SPEED |
| 75 |
< |
#define WFLUSH (5*SPEED) |
| 76 |
< |
#else |
| 77 |
< |
#define WFLUSH 100 /* flush after this many rays */ |
| 19 |
> |
#define WFLUSH 64 /* flush after this many primary rays */ |
| 20 |
|
#endif |
| 21 |
+ |
#ifndef WFLUSH1 |
| 22 |
+ |
#define WFLUSH1 512 /* or this many total rays */ |
| 23 |
|
#endif |
| 24 |
|
|
| 25 |
+ |
|
| 26 |
|
#ifdef SMLFLT |
| 27 |
|
#define sscanvec(s,v) (sscanf(s,"%f %f %f",v,v+1,v+2)==3) |
| 28 |
|
#else |
| 29 |
|
#define sscanvec(s,v) (sscanf(s,"%lf %lf %lf",v,v+1,v+2)==3) |
| 30 |
|
#endif |
| 31 |
|
|
| 32 |
+ |
extern int ray_pnprocs; |
| 33 |
|
|
| 34 |
+ |
static RNUMBER niflush; /* flushes since newimage() */ |
| 35 |
+ |
|
| 36 |
|
int |
| 37 |
< |
getrect(s, r) /* get a box */ |
| 38 |
< |
char *s; |
| 39 |
< |
register RECT *r; |
| 37 |
> |
getrect( /* get a box */ |
| 38 |
> |
char *s, |
| 39 |
> |
RECT *r |
| 40 |
> |
) |
| 41 |
|
{ |
| 42 |
|
int x0, y0, x1, y1; |
| 43 |
|
|
| 82 |
|
|
| 83 |
|
|
| 84 |
|
int |
| 85 |
< |
getinterest(s, direc, vec, mp) /* get area of interest */ |
| 86 |
< |
char *s; |
| 87 |
< |
int direc; |
| 88 |
< |
FVECT vec; |
| 89 |
< |
double *mp; |
| 85 |
> |
getinterest( /* get area of interest */ |
| 86 |
> |
char *s, |
| 87 |
> |
int direc, |
| 88 |
> |
FVECT vec, |
| 89 |
> |
double *mp |
| 90 |
> |
) |
| 91 |
|
{ |
| 92 |
|
int x, y; |
| 93 |
|
RAY thisray; |
| 94 |
< |
register int i; |
| 94 |
> |
int i; |
| 95 |
|
|
| 96 |
|
if (sscanf(s, "%lf", mp) != 1) |
| 97 |
|
*mp = 1.0; |
| 113 |
|
return(-1); |
| 114 |
|
} |
| 115 |
|
if (!direc || ourview.type == VT_PAR) { |
| 116 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
| 116 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
| 117 |
|
if (!localhit(&thisray, &thescene)) { |
| 118 |
|
error(COMMAND, "not a local object"); |
| 119 |
|
return(-1); |
| 127 |
|
VCOPY(vec, thisray.rdir); |
| 128 |
|
else |
| 129 |
|
VCOPY(vec, thisray.rop); |
| 130 |
< |
} else if (direc) |
| 131 |
< |
for (i = 0; i < 3; i++) |
| 132 |
< |
vec[i] -= ourview.vp[i]; |
| 130 |
> |
} else if (direc) { |
| 131 |
> |
for (i = 0; i < 3; i++) |
| 132 |
> |
vec[i] -= ourview.vp[i]; |
| 133 |
> |
if (normalize(vec) == 0.0) { |
| 134 |
> |
error(COMMAND, "point at view origin"); |
| 135 |
> |
return(-1); |
| 136 |
> |
} |
| 137 |
> |
} |
| 138 |
|
return(0); |
| 139 |
|
} |
| 140 |
|
|
| 141 |
|
|
| 142 |
|
float * /* keep consistent with COLOR typedef */ |
| 143 |
< |
greyof(col) /* convert color to greyscale */ |
| 144 |
< |
register COLOR col; |
| 143 |
> |
greyof( /* convert color to greyscale */ |
| 144 |
> |
COLOR col |
| 145 |
> |
) |
| 146 |
|
{ |
| 147 |
|
static COLOR gcol; |
| 148 |
|
double b; |
| 152 |
|
return(gcol); |
| 153 |
|
} |
| 154 |
|
|
| 155 |
+ |
static void |
| 156 |
+ |
recolor( /* recolor the given node */ |
| 157 |
+ |
PNODE *p |
| 158 |
+ |
) |
| 159 |
+ |
{ |
| 160 |
+ |
while (p->kid != NULL) { /* need to propogate down */ |
| 161 |
+ |
int mx = (p->xmin + p->xmax) >> 1; |
| 162 |
+ |
int my = (p->ymin + p->ymax) >> 1; |
| 163 |
+ |
int ki; |
| 164 |
+ |
if (p->x >= mx) |
| 165 |
+ |
ki = (p->y >= my) ? UR : DR; |
| 166 |
+ |
else |
| 167 |
+ |
ki = (p->y >= my) ? UL : DL; |
| 168 |
+ |
pcopy(p, p->kid+ki); |
| 169 |
+ |
p = p->kid + ki; |
| 170 |
+ |
} |
| 171 |
|
|
| 172 |
< |
void |
| 173 |
< |
paint(p, xmin, ymin, xmax, ymax) /* compute and paint a rectangle */ |
| 174 |
< |
register PNODE *p; |
| 175 |
< |
int xmin, ymin, xmax, ymax; |
| 172 |
> |
(*dev->paintr)(greyscale?greyof(p->v):p->v, |
| 173 |
> |
p->xmin, p->ymin, p->xmax, p->ymax); |
| 174 |
> |
} |
| 175 |
> |
|
| 176 |
> |
int |
| 177 |
> |
paint( /* compute and paint a rectangle */ |
| 178 |
> |
PNODE *p |
| 179 |
> |
) |
| 180 |
|
{ |
| 205 |
– |
static unsigned long lastflush = 0; |
| 181 |
|
static RAY thisray; |
| 182 |
|
double h, v; |
| 183 |
|
|
| 184 |
< |
if (xmax - xmin <= 0 || ymax - ymin <= 0) { /* empty */ |
| 185 |
< |
p->x = xmin; |
| 186 |
< |
p->y = ymin; |
| 184 |
> |
if ((p->xmax <= p->xmin) | (p->ymax <= p->ymin)) { /* empty */ |
| 185 |
> |
p->x = p->xmin; |
| 186 |
> |
p->y = p->ymin; |
| 187 |
|
setcolor(p->v, 0.0, 0.0, 0.0); |
| 188 |
< |
return; |
| 188 |
> |
return(0); |
| 189 |
|
} |
| 190 |
|
/* jitter ray direction */ |
| 191 |
< |
h = xmin + (xmax-xmin)*frandom(); |
| 192 |
< |
v = ymin + (ymax-ymin)*frandom(); |
| 191 |
> |
p->x = h = p->xmin + (p->xmax-p->xmin)*frandom(); |
| 192 |
> |
p->y = v = p->ymin + (p->ymax-p->ymin)*frandom(); |
| 193 |
|
|
| 194 |
|
if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, &ourview, |
| 195 |
|
h/hresolu, v/vresolu)) < -FTINY) { |
| 196 |
|
setcolor(thisray.rcol, 0.0, 0.0, 0.0); |
| 197 |
< |
} else { |
| 198 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
| 199 |
< |
samplendx++; |
| 200 |
< |
rayvalue(&thisray); |
| 197 |
> |
} else if (!ray_pnprocs) { /* immediate mode */ |
| 198 |
> |
ray_trace(&thisray); |
| 199 |
> |
} else { /* queuing mode */ |
| 200 |
> |
int rval; |
| 201 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
| 202 |
> |
thisray.rno = (RNUMBER)p; |
| 203 |
> |
rval = ray_pqueue(&thisray); |
| 204 |
> |
if (!rval) |
| 205 |
> |
return(0); |
| 206 |
> |
if (rval < 0) |
| 207 |
> |
return(-1); |
| 208 |
> |
/* get node for returned ray */ |
| 209 |
> |
p = (PNODE *)thisray.rno; |
| 210 |
|
} |
| 211 |
|
|
| 228 |
– |
p->x = h; |
| 229 |
– |
p->y = v; |
| 212 |
|
copycolor(p->v, thisray.rcol); |
| 213 |
|
scalecolor(p->v, exposure); |
| 214 |
|
|
| 215 |
< |
(*dev->paintr)(greyscale?greyof(p->v):p->v, xmin, ymin, xmax, ymax); |
| 215 |
> |
recolor(p); /* paint it */ |
| 216 |
|
|
| 217 |
< |
if (dev->flush != NULL && nrays - lastflush >= WFLUSH) { |
| 218 |
< |
lastflush = nrays; |
| 219 |
< |
(*dev->flush)(); |
| 217 |
> |
if (dev->flush != NULL) { /* shall we check for input? */ |
| 218 |
> |
static RNUMBER lastflush = 0; |
| 219 |
> |
RNUMBER counter = raynum; |
| 220 |
> |
int flushintvl; |
| 221 |
> |
if (!ray_pnprocs) { |
| 222 |
> |
counter = nrays; |
| 223 |
> |
flushintvl = WFLUSH1; |
| 224 |
> |
} else if (ambounce == 0) |
| 225 |
> |
flushintvl = ray_pnprocs*WFLUSH; |
| 226 |
> |
else if (niflush < WFLUSH) |
| 227 |
> |
flushintvl = ray_pnprocs*niflush/(ambounce+1); |
| 228 |
> |
else |
| 229 |
> |
flushintvl = ray_pnprocs*WFLUSH/(ambounce+1); |
| 230 |
> |
if (lastflush > counter) |
| 231 |
> |
lastflush = 0; /* counter wrapped */ |
| 232 |
> |
|
| 233 |
> |
if (counter - lastflush >= flushintvl) { |
| 234 |
> |
lastflush = counter; |
| 235 |
> |
(*dev->flush)(); |
| 236 |
> |
niflush++; |
| 237 |
> |
} |
| 238 |
|
} |
| 239 |
+ |
return(1); |
| 240 |
|
} |
| 241 |
|
|
| 242 |
|
|
| 243 |
+ |
int |
| 244 |
+ |
waitrays(void) /* finish up pending rays */ |
| 245 |
+ |
{ |
| 246 |
+ |
int nwaited = 0; |
| 247 |
+ |
int rval; |
| 248 |
+ |
RAY raydone; |
| 249 |
+ |
|
| 250 |
+ |
if (!ray_pnprocs) /* immediate mode? */ |
| 251 |
+ |
return(0); |
| 252 |
+ |
while ((rval = ray_presult(&raydone, 0)) > 0) { |
| 253 |
+ |
PNODE *p = (PNODE *)raydone.rno; |
| 254 |
+ |
copycolor(p->v, raydone.rcol); |
| 255 |
+ |
scalecolor(p->v, exposure); |
| 256 |
+ |
recolor(p); |
| 257 |
+ |
nwaited++; |
| 258 |
+ |
} |
| 259 |
+ |
if (rval < 0) |
| 260 |
+ |
return(-1); |
| 261 |
+ |
return(nwaited); |
| 262 |
+ |
} |
| 263 |
+ |
|
| 264 |
+ |
|
| 265 |
|
void |
| 266 |
< |
newimage() /* start a new image */ |
| 266 |
> |
newimage( /* start a new image */ |
| 267 |
> |
char *s |
| 268 |
> |
) |
| 269 |
|
{ |
| 270 |
+ |
int newnp = 0; |
| 271 |
+ |
/* # rendering procs arg? */ |
| 272 |
+ |
if (s != NULL) |
| 273 |
+ |
sscanf(s, "%d", &newnp); |
| 274 |
|
/* free old image */ |
| 275 |
|
freepkids(&ptrunk); |
| 247 |
– |
/* save reserve memory */ |
| 248 |
– |
fillreserves(); |
| 276 |
|
/* compute resolution */ |
| 277 |
|
hresolu = dev->xsiz; |
| 278 |
|
vresolu = dev->ysiz; |
| 279 |
|
normaspect(viewaspect(&ourview), &dev->pixaspect, &hresolu, &vresolu); |
| 280 |
< |
pframe.l = pframe.d = 0; |
| 281 |
< |
pframe.r = hresolu; pframe.u = vresolu; |
| 280 |
> |
ptrunk.xmin = ptrunk.ymin = pframe.l = pframe.d = 0; |
| 281 |
> |
ptrunk.xmax = pframe.r = hresolu; |
| 282 |
> |
ptrunk.ymax = pframe.u = vresolu; |
| 283 |
|
pdepth = 0; |
| 284 |
|
/* clear device */ |
| 285 |
|
(*dev->clear)(hresolu, vresolu); |
| 286 |
< |
/* get first value */ |
| 287 |
< |
paint(&ptrunk, 0, 0, hresolu, vresolu); |
| 286 |
> |
|
| 287 |
> |
if (newparam) { /* (re)start rendering procs */ |
| 288 |
> |
if (ray_pnprocs) |
| 289 |
> |
ray_pclose(0); /* should already be closed */ |
| 290 |
> |
if (newnp > 0) |
| 291 |
> |
nproc = newnp; |
| 292 |
> |
if (nproc > 1) |
| 293 |
> |
ray_popen(nproc); |
| 294 |
> |
newparam = 0; |
| 295 |
> |
} else if ((newnp > 0) & (newnp != nproc)) { |
| 296 |
> |
if (newnp == 1) /* change # rendering procs */ |
| 297 |
> |
ray_pclose(0); |
| 298 |
> |
else if (newnp < ray_pnprocs) |
| 299 |
> |
ray_pclose(ray_pnprocs - newnp); |
| 300 |
> |
else |
| 301 |
> |
ray_popen(newnp - ray_pnprocs); |
| 302 |
> |
nproc = newnp; |
| 303 |
> |
} |
| 304 |
> |
niflush = 0; /* get first value */ |
| 305 |
> |
paint(&ptrunk); |
| 306 |
|
} |
| 307 |
|
|
| 308 |
|
|
| 309 |
|
void |
| 310 |
< |
redraw() /* redraw the image */ |
| 310 |
> |
redraw(void) /* redraw the image */ |
| 311 |
|
{ |
| 312 |
|
(*dev->clear)(hresolu, vresolu); |
| 313 |
|
(*dev->comout)("redrawing...\n"); |
| 317 |
|
|
| 318 |
|
|
| 319 |
|
void |
| 320 |
< |
repaint(xmin, ymin, xmax, ymax) /* repaint a region */ |
| 321 |
< |
int xmin, ymin, xmax, ymax; |
| 320 |
> |
repaint( /* repaint a region */ |
| 321 |
> |
int xmin, |
| 322 |
> |
int ymin, |
| 323 |
> |
int xmax, |
| 324 |
> |
int ymax |
| 325 |
> |
) |
| 326 |
|
{ |
| 327 |
|
RECT reg; |
| 328 |
|
|
| 329 |
|
reg.l = xmin; reg.r = xmax; |
| 330 |
|
reg.d = ymin; reg.u = ymax; |
| 331 |
|
|
| 332 |
< |
paintrect(&ptrunk, 0, 0, hresolu, vresolu, ®); |
| 332 |
> |
paintrect(&ptrunk, ®); |
| 333 |
|
} |
| 334 |
|
|
| 335 |
|
|
| 336 |
|
void |
| 337 |
< |
paintrect(p, xmin, ymin, xmax, ymax, r) /* paint picture rectangle */ |
| 338 |
< |
register PNODE *p; |
| 339 |
< |
int xmin, ymin, xmax, ymax; |
| 340 |
< |
register RECT *r; |
| 337 |
> |
paintrect( /* paint picture rectangle */ |
| 338 |
> |
PNODE *p, |
| 339 |
> |
RECT *r |
| 340 |
> |
) |
| 341 |
|
{ |
| 342 |
|
int mx, my; |
| 343 |
|
|
| 344 |
< |
if (xmax - xmin <= 0 || ymax - ymin <= 0) |
| 344 |
> |
if (p->xmax - p->xmin <= 0 || p->ymax - p->ymin <= 0) |
| 345 |
|
return; |
| 346 |
|
|
| 347 |
|
if (p->kid == NULL) { |
| 348 |
|
(*dev->paintr)(greyscale?greyof(p->v):p->v, |
| 349 |
< |
xmin, ymin, xmax, ymax); /* do this */ |
| 349 |
> |
p->xmin, p->ymin, p->xmax, p->ymax); /* do this */ |
| 350 |
|
return; |
| 351 |
|
} |
| 352 |
< |
mx = (xmin + xmax) >> 1; /* do kids */ |
| 353 |
< |
my = (ymin + ymax) >> 1; |
| 352 |
> |
mx = (p->xmin + p->xmax) >> 1; /* do kids */ |
| 353 |
> |
my = (p->ymin + p->ymax) >> 1; |
| 354 |
|
if (mx > r->l) { |
| 355 |
|
if (my > r->d) |
| 356 |
< |
paintrect(p->kid+DL, xmin, ymin, mx, my, r); |
| 356 |
> |
paintrect(p->kid+DL, r); |
| 357 |
|
if (my < r->u) |
| 358 |
< |
paintrect(p->kid+UL, xmin, my, mx, ymax, r); |
| 358 |
> |
paintrect(p->kid+UL, r); |
| 359 |
|
} |
| 360 |
|
if (mx < r->r) { |
| 361 |
|
if (my > r->d) |
| 362 |
< |
paintrect(p->kid+DR, mx, ymin, xmax, my, r); |
| 362 |
> |
paintrect(p->kid+DR, r); |
| 363 |
|
if (my < r->u) |
| 364 |
< |
paintrect(p->kid+UR, mx, my, xmax, ymax, r); |
| 364 |
> |
paintrect(p->kid+UR, r); |
| 365 |
|
} |
| 366 |
|
} |
| 367 |
|
|
| 368 |
|
|
| 369 |
|
PNODE * |
| 370 |
< |
findrect(x, y, p, r, pd) /* find a rectangle */ |
| 371 |
< |
int x, y; |
| 372 |
< |
register PNODE *p; |
| 373 |
< |
register RECT *r; |
| 374 |
< |
int pd; |
| 370 |
> |
findrect( /* find a rectangle */ |
| 371 |
> |
int x, |
| 372 |
> |
int y, |
| 373 |
> |
PNODE *p, |
| 374 |
> |
int pd |
| 375 |
> |
) |
| 376 |
|
{ |
| 377 |
|
int mx, my; |
| 378 |
|
|
| 379 |
|
while (p->kid != NULL && pd--) { |
| 380 |
|
|
| 381 |
< |
mx = (r->l + r->r) >> 1; |
| 382 |
< |
my = (r->d + r->u) >> 1; |
| 381 |
> |
mx = (p->xmin + p->xmax) >> 1; |
| 382 |
> |
my = (p->ymin + p->ymax) >> 1; |
| 383 |
|
|
| 384 |
|
if (x < mx) { |
| 334 |
– |
r->r = mx; |
| 385 |
|
if (y < my) { |
| 336 |
– |
r->u = my; |
| 386 |
|
p = p->kid+DL; |
| 387 |
|
} else { |
| 339 |
– |
r->d = my; |
| 388 |
|
p = p->kid+UL; |
| 389 |
|
} |
| 390 |
|
} else { |
| 343 |
– |
r->l = mx; |
| 391 |
|
if (y < my) { |
| 345 |
– |
r->u = my; |
| 392 |
|
p = p->kid+DR; |
| 393 |
|
} else { |
| 348 |
– |
r->d = my; |
| 394 |
|
p = p->kid+UR; |
| 395 |
|
} |
| 396 |
|
} |
| 400 |
|
|
| 401 |
|
|
| 402 |
|
void |
| 403 |
< |
scalepict(p, sf) /* scale picture values */ |
| 404 |
< |
register PNODE *p; |
| 405 |
< |
double sf; |
| 403 |
> |
compavg( /* recompute averages */ |
| 404 |
> |
PNODE *p |
| 405 |
> |
) |
| 406 |
|
{ |
| 407 |
+ |
int i, navg; |
| 408 |
+ |
|
| 409 |
+ |
if (p->kid == NULL) |
| 410 |
+ |
return; |
| 411 |
+ |
|
| 412 |
+ |
setcolor(p->v, .0, .0, .0); |
| 413 |
+ |
navg = 0; |
| 414 |
+ |
for (i = 0; i < 4; i++) { |
| 415 |
+ |
if (p->kid[i].xmin >= p->kid[i].xmax) continue; |
| 416 |
+ |
if (p->kid[i].ymin >= p->kid[i].ymax) continue; |
| 417 |
+ |
compavg(p->kid+i); |
| 418 |
+ |
addcolor(p->v, p->kid[i].v); |
| 419 |
+ |
navg++; |
| 420 |
+ |
} |
| 421 |
+ |
if (navg > 1) |
| 422 |
+ |
scalecolor(p->v, 1./navg); |
| 423 |
+ |
} |
| 424 |
+ |
|
| 425 |
+ |
|
| 426 |
+ |
void |
| 427 |
+ |
scalepict( /* scale picture values */ |
| 428 |
+ |
PNODE *p, |
| 429 |
+ |
double sf |
| 430 |
+ |
) |
| 431 |
+ |
{ |
| 432 |
|
scalecolor(p->v, sf); /* do this node */ |
| 433 |
|
|
| 434 |
|
if (p->kid == NULL) |
| 442 |
|
|
| 443 |
|
|
| 444 |
|
void |
| 445 |
< |
getpictcolrs(yoff, scan, p, xsiz, ysiz) /* get scanline from picture */ |
| 446 |
< |
int yoff; |
| 447 |
< |
register COLR *scan; |
| 448 |
< |
register PNODE *p; |
| 449 |
< |
int xsiz, ysiz; |
| 445 |
> |
getpictcolrs( /* get scanline from picture */ |
| 446 |
> |
int yoff, |
| 447 |
> |
COLR *scan, |
| 448 |
> |
PNODE *p, |
| 449 |
> |
int xsiz, |
| 450 |
> |
int ysiz |
| 451 |
> |
) |
| 452 |
|
{ |
| 453 |
< |
register int mx; |
| 453 |
> |
int mx; |
| 454 |
|
int my; |
| 455 |
|
|
| 456 |
|
if (p->kid == NULL) { /* do this node */ |
| 475 |
|
|
| 476 |
|
|
| 477 |
|
void |
| 478 |
< |
freepkids(p) /* free pnode's children */ |
| 479 |
< |
register PNODE *p; |
| 478 |
> |
freepkids( /* free pnode's children */ |
| 479 |
> |
PNODE *p |
| 480 |
> |
) |
| 481 |
|
{ |
| 482 |
|
if (p->kid == NULL) |
| 483 |
|
return; |
| 491 |
|
|
| 492 |
|
|
| 493 |
|
void |
| 494 |
< |
newview(vp) /* change viewing parameters */ |
| 495 |
< |
register VIEW *vp; |
| 494 |
> |
newview( /* change viewing parameters */ |
| 495 |
> |
VIEW *vp |
| 496 |
> |
) |
| 497 |
|
{ |
| 498 |
|
char *err; |
| 499 |
|
|
| 500 |
|
if ((err = setview(vp)) != NULL) { |
| 501 |
|
sprintf(errmsg, "view not set - %s", err); |
| 502 |
|
error(COMMAND, errmsg); |
| 503 |
< |
} else if (bcmp((char *)vp, (char *)&ourview, sizeof(VIEW))) { |
| 504 |
< |
copystruct(&oldview, &ourview); |
| 505 |
< |
copystruct(&ourview, vp); |
| 506 |
< |
newimage(); |
| 503 |
> |
} else if (memcmp((char *)vp, (char *)&ourview, sizeof(VIEW))) { |
| 504 |
> |
oldview = ourview; |
| 505 |
> |
ourview = *vp; |
| 506 |
> |
newimage(NULL); |
| 507 |
|
} |
| 508 |
|
} |
| 509 |
|
|
| 510 |
|
|
| 511 |
|
void |
| 512 |
< |
moveview(angle, elev, mag, vc) /* move viewpoint */ |
| 513 |
< |
double angle, elev, mag; |
| 514 |
< |
FVECT vc; |
| 512 |
> |
moveview( /* move viewpoint */ |
| 513 |
> |
double angle, |
| 514 |
> |
double elev, |
| 515 |
> |
double mag, |
| 516 |
> |
FVECT vc |
| 517 |
> |
) |
| 518 |
|
{ |
| 519 |
|
double d; |
| 520 |
|
FVECT v1; |
| 521 |
< |
VIEW nv; |
| 522 |
< |
register int i; |
| 521 |
> |
VIEW nv = ourview; |
| 522 |
> |
int i; |
| 523 |
|
|
| 447 |
– |
VCOPY(nv.vup, ourview.vup); |
| 448 |
– |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
| 524 |
|
spinvector(nv.vdir, ourview.vdir, ourview.vup, angle*(PI/180.)); |
| 525 |
|
if (elev != 0.0) { |
| 526 |
|
fcross(v1, ourview.vup, nv.vdir); |
| 527 |
|
normalize(v1); |
| 528 |
|
spinvector(nv.vdir, nv.vdir, v1, elev*(PI/180.)); |
| 529 |
|
} |
| 530 |
< |
if ((nv.type = ourview.type) == VT_PAR) { |
| 531 |
< |
nv.horiz = ourview.horiz / mag; |
| 532 |
< |
nv.vert = ourview.vert / mag; |
| 530 |
> |
if (nv.type == VT_PAR) { |
| 531 |
> |
nv.horiz /= mag; |
| 532 |
> |
nv.vert /= mag; |
| 533 |
|
d = 0.0; /* don't move closer */ |
| 534 |
|
for (i = 0; i < 3; i++) |
| 535 |
|
d += (vc[i] - ourview.vp[i])*ourview.vdir[i]; |
| 461 |
– |
nv.vfore = ourview.vfore; |
| 462 |
– |
nv.vaft = ourview.vaft; |
| 536 |
|
} else { |
| 464 |
– |
nv.horiz = ourview.horiz; |
| 465 |
– |
nv.vert = ourview.vert; |
| 537 |
|
d = sqrt(dist2(ourview.vp, vc)) / mag; |
| 538 |
< |
if ((nv.vfore = ourview.vfore) > FTINY) { |
| 538 |
> |
if (nv.vfore > FTINY) { |
| 539 |
|
nv.vfore += d - d*mag; |
| 540 |
|
if (nv.vfore < 0.0) nv.vfore = 0.0; |
| 541 |
|
} |
| 542 |
< |
if ((nv.vaft = ourview.vaft) > FTINY) { |
| 542 |
> |
if (nv.vaft > FTINY) { |
| 543 |
|
nv.vaft += d - d*mag; |
| 544 |
|
if (nv.vaft <= nv.vfore) nv.vaft = 0.0; |
| 545 |
|
} |
| 546 |
+ |
nv.vdist /= mag; |
| 547 |
|
} |
| 548 |
|
for (i = 0; i < 3; i++) |
| 549 |
|
nv.vp[i] = vc[i] - d*nv.vdir[i]; |
| 552 |
|
|
| 553 |
|
|
| 554 |
|
void |
| 555 |
< |
pcopy(p1, p2) /* copy paint node p1 into p2 */ |
| 556 |
< |
register PNODE *p1, *p2; |
| 555 |
> |
pcopy( /* copy paint node p1 into p2 */ |
| 556 |
> |
PNODE *p1, |
| 557 |
> |
PNODE *p2 |
| 558 |
> |
) |
| 559 |
|
{ |
| 560 |
|
copycolor(p2->v, p1->v); |
| 561 |
|
p2->x = p1->x; |
| 564 |
|
|
| 565 |
|
|
| 566 |
|
void |
| 567 |
< |
zoomview(vp, zf) /* zoom in or out */ |
| 568 |
< |
register VIEW *vp; |
| 569 |
< |
double zf; |
| 567 |
> |
zoomview( /* zoom in or out */ |
| 568 |
> |
VIEW *vp, |
| 569 |
> |
double zf |
| 570 |
> |
) |
| 571 |
|
{ |
| 572 |
|
switch (vp->type) { |
| 573 |
|
case VT_PAR: /* parallel view */ |
| 581 |
|
vp->vert /= zf; |
| 582 |
|
if (vp->vert > 360.) |
| 583 |
|
vp->vert = 360.; |
| 584 |
+ |
return; |
| 585 |
+ |
case VT_PLS: /* planisphere fisheye */ |
| 586 |
+ |
vp->horiz = sin((PI/180./2.)*vp->horiz) / |
| 587 |
+ |
(1.0 + cos((PI/180./2.)*vp->horiz)) / zf; |
| 588 |
+ |
vp->horiz *= vp->horiz; |
| 589 |
+ |
vp->horiz = (2.*180./PI)*acos((1. - vp->horiz) / |
| 590 |
+ |
(1. + vp->horiz)); |
| 591 |
+ |
vp->vert = sin((PI/180./2.)*vp->vert) / |
| 592 |
+ |
(1.0 + cos((PI/180./2.)*vp->vert)) / zf; |
| 593 |
+ |
vp->vert *= vp->vert; |
| 594 |
+ |
vp->vert = (2.*180./PI)*acos((1. - vp->vert) / |
| 595 |
+ |
(1. + vp->vert)); |
| 596 |
|
return; |
| 597 |
|
case VT_CYL: /* cylindrical panorama */ |
| 598 |
|
vp->horiz /= zf; |
