40 |
|
#define RAYQLEN 10240 /* max. rays to queue before flush */ |
41 |
|
#endif |
42 |
|
|
43 |
+ |
#ifndef PORTALP |
44 |
+ |
#define PORTRED 2 /* portal red color */ |
45 |
+ |
#define PORTGRN -1 /* portal green left alone */ |
46 |
+ |
#define PORTBLU 128 /* portal blue color */ |
47 |
+ |
#define PORTALP -1 /* don't use alpha channel */ |
48 |
+ |
#endif |
49 |
+ |
#define isportal(c) ((PORTRED<0 || (c)[0]==PORTRED) && \ |
50 |
+ |
(PORTGRN<0 || (c)[1]==PORTGRN) && \ |
51 |
+ |
(PORTBLU<0 || (c)[2]==PORTBLU) && \ |
52 |
+ |
(PORTALP<0 || (c)[3]==PORTALP)) |
53 |
+ |
|
54 |
|
#ifndef FEQ |
55 |
|
#define FEQ(a,b) ((a)-(b) <= FTINY && (a)-(b) >= -FTINY) |
56 |
|
#endif |
122 |
|
static int viewsteady; /* is view steady? */ |
123 |
|
|
124 |
|
static int resizewindow(), getevent(), getkey(), moveview(), wipeclean(), |
125 |
< |
xferdepth(), setglortho(), |
125 |
> |
xferdepth(), freedepth(), setglortho(), |
126 |
|
setglpersp(), getframe(), getmove(), fixwindow(), mytmflags(); |
127 |
|
|
128 |
|
static double getdistance(); |
131 |
|
static int pushright(), popright(); |
132 |
|
#endif |
133 |
|
|
134 |
+ |
extern int gmPortals; /* GL portal list id */ |
135 |
+ |
|
136 |
|
extern time_t time(); |
137 |
|
|
138 |
|
|
141 |
|
{ |
142 |
|
extern char *getenv(); |
143 |
|
static RGBPRIMS myprims = STDPRIMS; |
144 |
+ |
#if (PORTALP<0) |
145 |
|
static int atlBest[] = {GLX_RGBA, GLX_RED_SIZE,8, |
146 |
|
GLX_GREEN_SIZE,8, GLX_BLUE_SIZE,8, |
147 |
|
GLX_DEPTH_SIZE,15, None}; |
148 |
+ |
#else |
149 |
+ |
static int atlBest[] = {GLX_RGBA, GLX_RED_SIZE,8, |
150 |
+ |
GLX_GREEN_SIZE,8, GLX_BLUE_SIZE,8, |
151 |
+ |
GLX_ALPHA_SIZE,2, GLX_DEPTH_SIZE,15, None}; |
152 |
+ |
#endif |
153 |
|
char *ev; |
154 |
|
double gamval = GAMMA; |
155 |
|
RGBPRIMP dpri = stdprims; |
262 |
|
XMapWindow(ourdisplay, gwind); |
263 |
|
dev_input(); /* sets size and view angles */ |
264 |
|
if (!odInit(DisplayWidth(ourdisplay,ourscreen) * |
265 |
< |
DisplayHeight(ourdisplay,ourscreen) / 10)) |
265 |
> |
DisplayHeight(ourdisplay,ourscreen) / 4)) |
266 |
|
error(SYSTEM, "insufficient memory for value storage"); |
267 |
|
odev.name = id; |
268 |
|
odev.firstuse = 1; /* can't recycle samples */ |
275 |
|
#ifdef DOBJ |
276 |
|
dobj_cleanup(); |
277 |
|
#endif |
278 |
+ |
freedepth(); |
279 |
+ |
gmEndGeom(); |
280 |
+ |
gmEndPortal(); |
281 |
|
odDone(); |
282 |
|
glXMakeCurrent(ourdisplay, None, NULL); |
283 |
|
glXDestroyContext(ourdisplay, gctx); |
354 |
|
} |
355 |
|
|
356 |
|
|
357 |
< |
dev_section(ofn) /* add octree for geometry rendering */ |
358 |
< |
char *ofn; |
357 |
> |
dev_section(gfn, pfn) /* add octree for geometry rendering */ |
358 |
> |
char *gfn, *pfn; |
359 |
|
{ |
360 |
|
extern char *index(); |
361 |
|
char *cp; |
362 |
|
|
363 |
< |
if (ofn == NULL) |
364 |
< |
otEndOctree(); |
365 |
< |
else if (access(ofn, R_OK) == 0) |
366 |
< |
otNewOctree(ofn); |
363 |
> |
if (gfn == NULL) { |
364 |
> |
gmEndGeom(); |
365 |
> |
gmEndPortal(); |
366 |
> |
wipeclean(); /* new geometry, so redraw it */ |
367 |
> |
return; |
368 |
> |
} |
369 |
> |
if (access(gfn, R_OK) == 0) |
370 |
> |
gmNewGeom(gfn); |
371 |
|
#ifdef DEBUG |
372 |
|
else { |
373 |
< |
sprintf(errmsg, "cannot load octree \"%s\"", ofn); |
373 |
> |
sprintf(errmsg, "cannot load octree \"%s\"", gfn); |
374 |
|
error(WARNING, errmsg); |
375 |
|
} |
376 |
|
#endif |
377 |
+ |
if (pfn != NULL) |
378 |
+ |
gmNewPortal(pfn); |
379 |
|
} |
380 |
|
|
381 |
|
|
447 |
|
if (mapped && isperspective > 0) { |
448 |
|
#ifdef STEREO |
449 |
|
pushright(); /* draw right eye */ |
450 |
< |
otDrawOctrees(); |
450 |
> |
ndrawn = gmDrawGeom(); |
451 |
|
#ifdef DOBJ |
452 |
< |
dobj_render(); |
452 |
> |
ndrawn += dobj_render(); |
453 |
|
#endif |
454 |
+ |
if (ndrawn) |
455 |
+ |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
456 |
|
checkglerr("rendering right eye"); |
457 |
|
popright(); /* draw left eye */ |
458 |
|
#endif |
459 |
< |
ndrawn = otDrawOctrees(); |
459 |
> |
ndrawn = gmDrawGeom(); |
460 |
|
#ifdef DOBJ |
461 |
|
ndrawn += dobj_render(); |
462 |
|
#endif |
463 |
+ |
if (ndrawn) |
464 |
+ |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
465 |
|
checkglerr("rendering base view"); |
466 |
|
} |
467 |
< |
if (mapped && viewsteady) { |
468 |
< |
if (isperspective) { /* first time after steady */ |
437 |
< |
#ifdef STEREO |
438 |
< |
pushright(); |
439 |
< |
popright(); |
440 |
< |
#endif |
467 |
> |
if (mapped && viewsteady) |
468 |
> |
if (isperspective > 0) { /* first time after steady */ |
469 |
|
if (ndrawn) |
470 |
|
xferdepth(); /* transfer and clear depth */ |
471 |
|
setglortho(); /* set orthographic view */ |
472 |
< |
} else { |
472 |
> |
} else if (!isperspective) { |
473 |
|
#ifdef STEREO |
474 |
|
pushright(); |
475 |
|
odUpdate(1); /* draw right eye */ |
477 |
|
#endif |
478 |
|
odUpdate(0); /* draw left eye */ |
479 |
|
} |
452 |
– |
} |
480 |
|
glFlush(); /* flush OpenGL */ |
481 |
|
rayqleft = RAYQLEN; |
482 |
|
/* flush X11 and return # pending */ |
501 |
|
xferdepth() /* load and clear depth buffer */ |
502 |
|
{ |
503 |
|
register GLfloat *dbp; |
504 |
+ |
register GLubyte *cbuf; |
505 |
|
|
506 |
< |
if (depthbuffer == NULL) { |
506 |
> |
if (depthbuffer == NULL) { /* allocate private depth buffer */ |
507 |
|
#ifdef STEREO |
508 |
|
depthright = (GLfloat *)malloc( |
509 |
|
odev.hres*odev.vres*sizeof(GLfloat)); |
513 |
|
if (depthbuffer == NULL) |
514 |
|
error(SYSTEM, "out of memory in xferdepth"); |
515 |
|
} |
516 |
+ |
/* allocate alpha buffer for portals */ |
517 |
+ |
if (gmPortals) |
518 |
+ |
cbuf = (GLubyte *)malloc(odev.hres*odev.vres* |
519 |
+ |
(4*sizeof(GLubyte))); |
520 |
+ |
else |
521 |
+ |
cbuf = NULL; |
522 |
|
#ifdef STEREO |
523 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
524 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
525 |
|
GL_DEPTH_COMPONENT, GL_FLOAT, depthright); |
526 |
< |
setstereobuf(STEREO_BUFFER_LEFT); |
526 |
> |
if (cbuf != NULL) |
527 |
> |
glReadPixels(0, 0, odev.hres, odev.vres, |
528 |
> |
GL_RGBA, GL_UNSIGNED_BYTE, cbuf); |
529 |
|
for (dbp = depthright + odev.hres*odev.vres; dbp-- > depthright; ) |
530 |
< |
*dbp = mapdepth(*dbp); |
531 |
< |
odDepthMap(1, depthright); |
530 |
> |
if (cbuf != NULL && isportal(cbuf+4*(dbp-depthright))) |
531 |
> |
*dbp = FHUGE; |
532 |
> |
else |
533 |
> |
*dbp = mapdepth(*dbp); |
534 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
535 |
+ |
setstereobuf(STEREO_BUFFER_LEFT); |
536 |
+ |
odDepthMap(1, depthright); |
537 |
|
#endif |
538 |
+ |
/* read back depth buffer */ |
539 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
540 |
|
GL_DEPTH_COMPONENT, GL_FLOAT, depthbuffer); |
541 |
+ |
if (cbuf != NULL) |
542 |
+ |
glReadPixels(0, 0, odev.hres, odev.vres, |
543 |
+ |
GL_RGBA, GL_UNSIGNED_BYTE, cbuf); |
544 |
|
for (dbp = depthbuffer + odev.hres*odev.vres; dbp-- > depthbuffer; ) |
545 |
< |
*dbp = mapdepth(*dbp); |
545 |
> |
if (cbuf != NULL && isportal(cbuf+4*(dbp-depthbuffer))) |
546 |
> |
*dbp = FHUGE; |
547 |
> |
else |
548 |
> |
*dbp = mapdepth(*dbp); |
549 |
> |
glClear(GL_DEPTH_BUFFER_BIT); /* clear system depth buffer */ |
550 |
> |
if (cbuf != NULL) |
551 |
> |
free((char *)cbuf); /* free our color buffer */ |
552 |
|
odDepthMap(0, depthbuffer); /* transfer depth data */ |
503 |
– |
glClear(GL_DEPTH_BUFFER_BIT); /* clear system buffer */ |
553 |
|
} |
554 |
|
|
555 |
|
|
556 |
+ |
static |
557 |
+ |
freedepth() /* free recorded depth buffer */ |
558 |
+ |
{ |
559 |
+ |
if (depthbuffer == NULL) |
560 |
+ |
return; |
561 |
+ |
#ifdef STEREO |
562 |
+ |
odDepthMap(1, NULL); |
563 |
+ |
free((char *)depthright); |
564 |
+ |
depthright = NULL; |
565 |
+ |
#endif |
566 |
+ |
odDepthMap(0, NULL); |
567 |
+ |
free((char *)depthbuffer); |
568 |
+ |
depthbuffer = NULL; |
569 |
+ |
} |
570 |
+ |
|
571 |
+ |
|
572 |
|
static double |
573 |
|
getdistance(dx, dy, direc) /* distance from fore plane along view ray */ |
574 |
|
int dx, dy; |
575 |
|
FVECT direc; |
576 |
|
{ |
577 |
|
GLfloat gldepth; |
578 |
+ |
GLubyte glcolor[4]; |
579 |
|
double dist; |
580 |
|
|
581 |
|
if (dx<0 | dx>=odev.hres | dy<0 | dy>=odev.vres) |
585 |
|
else { |
586 |
|
glReadPixels(dx,dy, 1,1, GL_DEPTH_COMPONENT, |
587 |
|
GL_FLOAT, &gldepth); |
588 |
+ |
if (gmPortals) { |
589 |
+ |
glReadPixels(dx,dy, 1,1, GL_RGBA, |
590 |
+ |
GL_UNSIGNED_BYTE, glcolor); |
591 |
+ |
if (isportal(glcolor)) |
592 |
+ |
return(FHUGE); |
593 |
+ |
} |
594 |
|
dist = mapdepth(gldepth); |
595 |
|
} |
596 |
|
if (dist >= .99*FHUGE) |
666 |
|
mapped = 0; |
667 |
|
break; |
668 |
|
case MapNotify: |
669 |
+ |
odRemap(0); |
670 |
|
mapped = 1; |
671 |
|
break; |
672 |
|
case Expose: |
762 |
|
if (setview(&nv) != NULL) |
763 |
|
return(0); /* illegal view */ |
764 |
|
dev_view(&nv); |
765 |
< |
inpresflags |= DFL(DC_SETVIEW)|DFL(DC_REDRAW); |
765 |
> |
inpresflags |= DFL(DC_SETVIEW); |
766 |
|
return(1); |
767 |
|
} |
768 |
|
|
796 |
|
{ |
797 |
|
int movdir = MOVDIR(ebut->button); |
798 |
|
int movorb = MOVORB(ebut->state); |
799 |
+ |
int ndrawn; |
800 |
|
Window rootw, childw; |
801 |
|
int rootx, rooty, wx, wy; |
802 |
|
unsigned int statemask; |
820 |
|
#ifdef STEREO |
821 |
|
pushright(); |
822 |
|
draw_grids(1); |
823 |
< |
otDrawOctrees(); |
823 |
> |
ndrawn = gmDrawGeom(); |
824 |
|
#ifdef DOBJ |
825 |
< |
dobj_render(); |
825 |
> |
ndrawn += dobj_render(); |
826 |
|
#endif |
827 |
+ |
if (ndrawn) |
828 |
+ |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
829 |
|
popright(); |
830 |
|
#endif |
831 |
|
/* redraw octrees */ |
832 |
< |
otDrawOctrees(); |
832 |
> |
ndrawn = gmDrawGeom(); |
833 |
|
#ifdef DOBJ |
834 |
< |
dobj_render(); /* redraw objects */ |
834 |
> |
ndrawn += dobj_render(); /* redraw objects */ |
835 |
|
#endif |
836 |
+ |
if (ndrawn) |
837 |
+ |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
838 |
|
glFlush(); |
839 |
+ |
if (!ndrawn) { |
840 |
+ |
sleep(1); /* for reasonable interaction */ |
841 |
+ |
#ifdef STEREO |
842 |
+ |
pushright(); |
843 |
+ |
draw_grids(0); |
844 |
+ |
popright(); |
845 |
+ |
#endif |
846 |
+ |
draw_grids(0); |
847 |
+ |
} |
848 |
|
} |
849 |
|
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
850 |
|
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
863 |
|
GLfloat vec[4]; |
864 |
|
double depthlim[2]; |
865 |
|
/* set depth limits */ |
866 |
< |
otDepthLimit(depthlim, odev.v.vp, odev.v.vdir); |
866 |
> |
gmDepthLimit(depthlim, odev.v.vp, odev.v.vdir); |
867 |
|
if (depthlim[0] >= depthlim[1]) { |
868 |
|
dev_zmin = 1.; |
869 |
|
dev_zmax = 100.; |
870 |
|
} else { |
871 |
|
dev_zmin = 0.5*depthlim[0]; |
872 |
< |
dev_zmax = 1.5*depthlim[1]; |
872 |
> |
dev_zmax = 1.75*depthlim[1]; |
873 |
|
if (dev_zmin > dev_zmax/5.) |
874 |
|
dev_zmin = dev_zmax/5.; |
875 |
|
} |
944 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
945 |
|
if (viewsteady) /* clear samples if steady */ |
946 |
|
odClean(); |
947 |
< |
if (depthbuffer != NULL) { /* free recorded depth buffer */ |
861 |
< |
#ifdef STEREO |
862 |
< |
odDepthMap(1, NULL); |
863 |
< |
free((char *)depthright); |
864 |
< |
depthright = NULL; |
865 |
< |
#endif |
866 |
< |
odDepthMap(0, NULL); |
867 |
< |
free((char *)depthbuffer); |
868 |
< |
depthbuffer = NULL; |
869 |
< |
} |
947 |
> |
freedepth(); |
948 |
|
setglpersp(&odev.v); /* reset view & clipping planes */ |
949 |
|
} |
950 |
|
|
995 |
|
inpresflags |= DFL(DC_RESUME); |
996 |
|
return; |
997 |
|
case CTRL('R'): /* redraw screen */ |
998 |
< |
odRemap(); |
998 |
> |
odRemap(0); |
999 |
|
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
1000 |
|
#ifdef STEREO |
1001 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
1010 |
|
XFlush(ourdisplay); |
1011 |
|
sleep(1); |
1012 |
|
wipeclean(); /* fresh display */ |
1013 |
< |
odRemap(); /* new tone mapping */ |
1013 |
> |
odRemap(1); /* fresh tone mapping */ |
1014 |
|
dev_flush(); /* draw octrees */ |
1015 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
1016 |
|
rayqleft = 0; /* hold off update */ |
1047 |
|
xmin = eexp->x; xmax = eexp->x + eexp->width; |
1048 |
|
ymin = odev.vres - eexp->y - eexp->height; ymax = odev.vres - eexp->y; |
1049 |
|
/* clear portion of depth */ |
1050 |
+ |
glPushAttrib(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
1051 |
|
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); |
1052 |
|
glDepthFunc(GL_ALWAYS); |
1053 |
|
glBegin(GL_POLYGON); |
1067 |
|
odRedraw(1, xmin, ymin, xmax, ymax); |
1068 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
1069 |
|
#endif |
1070 |
< |
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); |
992 |
< |
glDepthFunc(GL_LEQUAL); |
1070 |
> |
glPopAttrib(); |
1071 |
|
odRedraw(0, xmin, ymin, xmax, ymax); |
1072 |
|
} |
1073 |
|
|
1087 |
|
odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
1088 |
|
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
1089 |
|
|
1090 |
< |
inpresflags |= DFL(DC_SETVIEW)|DFL(DC_REDRAW); |
1090 |
> |
inpresflags |= DFL(DC_SETVIEW); |
1091 |
|
} |