21 |
|
#endif |
22 |
|
|
23 |
|
#include "standard.h" |
24 |
– |
#include "rhd_sample.h" |
24 |
|
|
25 |
|
#include <sys/types.h> |
26 |
|
#include <GL/glx.h> |
28 |
|
#ifdef STEREO |
29 |
|
#include <X11/extensions/SGIStereo.h> |
30 |
|
#endif |
31 |
+ |
|
32 |
+ |
#include "rhd_sample.h" |
33 |
|
#ifdef DOBJ |
34 |
|
#include "rhdobj.h" |
35 |
|
#endif |
37 |
|
#include "x11icon.h" |
38 |
|
|
39 |
|
#ifndef RAYQLEN |
40 |
< |
#define RAYQLEN 250 /* max. rays to queue before flush */ |
40 |
> |
#define RAYQLEN 1024 /* max. rays to queue before flush */ |
41 |
|
#endif |
42 |
|
|
43 |
|
#ifndef FEQ |
46 |
|
|
47 |
|
#define GAMMA 1.4 /* default gamma correction */ |
48 |
|
|
49 |
+ |
#define FRAMESTATE(s) (((s)&(ShiftMask|ControlMask))==(ShiftMask|ControlMask)) |
50 |
+ |
|
51 |
|
#define MOVPCT 7 /* percent distance to move /frame */ |
52 |
|
#define MOVDIR(b) ((b)==Button1 ? 1 : (b)==Button2 ? 0 : -1) |
53 |
|
#define MOVDEG (-5) /* degrees to orbit CW/down /frame */ |
77 |
|
|
78 |
|
struct driver odev; /* global device driver structure */ |
79 |
|
|
80 |
+ |
char odev_args[64]; /* command arguments */ |
81 |
+ |
|
82 |
+ |
#ifdef STEREO |
83 |
|
static VIEW vwright; /* right eye view */ |
84 |
+ |
#endif |
85 |
|
|
86 |
|
static int rayqleft = 0; /* rays left to queue before flush */ |
87 |
|
|
106 |
|
static int headlocked = 0; /* lock vertical motion */ |
107 |
|
|
108 |
|
static int resizewindow(), getevent(), getkey(), moveview(), wipeclean(), |
109 |
< |
setglpersp(), getmove(), fixwindow(), mytmflags(); |
109 |
> |
setglpersp(), getframe(), getmove(), fixwindow(), mytmflags(); |
110 |
|
|
111 |
|
#ifdef STEREO |
112 |
|
static int pushright(), popright(); |
131 |
|
XSizeHints oursizhints; |
132 |
|
/* check for unsupported stereo */ |
133 |
|
#ifdef NOSTEREO |
134 |
< |
error(USER, "stereo display driver unavailable"); |
134 |
> |
error(INTERNAL, "stereo display driver unavailable"); |
135 |
|
#endif |
136 |
|
/* open display server */ |
137 |
|
ourdisplay = XOpenDisplay(NULL); |
223 |
|
pheight *= 2.; |
224 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
225 |
|
#endif |
226 |
+ |
checkglerr("setting rendering parameters"); |
227 |
|
copystruct(&odev.v, &stdview); |
228 |
|
odev.v.type = VT_PER; |
229 |
|
/* map the window */ |
281 |
|
return(0); |
282 |
|
} |
283 |
|
if (nv != &odev.v) { |
284 |
< |
if (!FEQ(nv->horiz,odev.v.horiz) || /* resize window? */ |
284 |
> |
/* resize window? */ |
285 |
> |
if (!FEQ(nv->horiz,odev.v.horiz) || |
286 |
|
!FEQ(nv->vert,odev.v.vert)) { |
287 |
|
int dw = DisplayWidth(ourdisplay,ourscreen); |
288 |
|
int dh = DisplayHeight(ourdisplay,ourscreen); |
308 |
|
dev_input(); /* get resize event */ |
309 |
|
} |
310 |
|
copystruct(&odev.v, nv); /* setview() already called */ |
311 |
< |
setglpersp(&odev.v); |
311 |
> |
} |
312 |
|
#ifdef STEREO |
313 |
< |
copystruct(&vwright, nv); |
314 |
< |
d = eyesepdist / sqrt(nv->hn2); |
315 |
< |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
316 |
< |
/* setview(&vwright); -- Unnecessary */ |
313 |
> |
copystruct(&vwright, nv); |
314 |
> |
d = eyesepdist / sqrt(nv->hn2); |
315 |
> |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
316 |
> |
/* setview(&vwright); -- Unnecessary */ |
317 |
|
#endif |
309 |
– |
checkglerr("setting view"); |
310 |
– |
} |
318 |
|
wipeclean(); |
319 |
|
return(1); |
320 |
|
} |
321 |
|
|
322 |
|
|
323 |
+ |
dev_section(gfn, pfn) /* add octree for geometry rendering */ |
324 |
+ |
char *gfn, *pfn; |
325 |
+ |
{ |
326 |
+ |
/* unimplemented */ |
327 |
+ |
} |
328 |
+ |
|
329 |
+ |
|
330 |
|
dev_auxcom(cmd, args) /* process an auxiliary command */ |
331 |
|
char *cmd, *args; |
332 |
|
{ |
382 |
|
return; |
383 |
|
} |
384 |
|
#endif |
385 |
< |
smNewSamp(c, d, p); /* add to display representation */ |
372 |
< |
if (p != NULL) { |
385 |
> |
if (p != NULL) { /* add depth to our range */ |
386 |
|
depth = (p[0] - odev.v.vp[0])*d[0] + |
387 |
|
(p[1] - odev.v.vp[1])*d[1] + |
388 |
|
(p[2] - odev.v.vp[2])*d[2]; |
393 |
|
maxdpth = depth; |
394 |
|
} |
395 |
|
} |
396 |
+ |
smNewSamp(c, d, p); /* add to display representation */ |
397 |
|
if (!--rayqleft) |
398 |
|
dev_flush(); /* flush output */ |
399 |
|
} |
402 |
|
int |
403 |
|
dev_flush() /* flush output */ |
404 |
|
{ |
405 |
+ |
if (mapped) { |
406 |
|
#ifdef STEREO |
407 |
< |
pushright(); /* update right eye */ |
408 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
394 |
< |
smUpdate(&vwright, 100); |
407 |
> |
pushright(); /* update right eye */ |
408 |
> |
smUpdate(&vwright, 100); |
409 |
|
#ifdef DOBJ |
410 |
< |
dobj_render(); /* usually in foreground */ |
410 |
> |
dobj_render(); /* usually in foreground */ |
411 |
|
#endif |
412 |
< |
popright(); /* update left eye */ |
399 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
412 |
> |
popright(); /* update left eye */ |
413 |
|
#endif |
414 |
< |
smUpdate(&odev.v, 100); |
414 |
> |
smUpdate(&odev.v, 100); |
415 |
> |
checkglerr("rendering mesh"); |
416 |
|
#ifdef DOBJ |
417 |
< |
dobj_render(); |
417 |
> |
dobj_render(); |
418 |
|
#endif |
419 |
< |
glFlush(); /* flush OGL */ |
420 |
< |
checkglerr("flushing display"); |
419 |
> |
glFlush(); /* flush OGL */ |
420 |
> |
} |
421 |
|
rayqleft = RAYQLEN; |
422 |
|
/* flush X11 and return # pending */ |
423 |
|
return(odev.inpready = XPending(ourdisplay)); |
448 |
|
glPushMatrix(); |
449 |
|
d = -eyesepdist / sqrt(odev.v.hn2); |
450 |
|
glTranslated(d*odev.v.hvec[0], d*odev.v.hvec[1], d*odev.v.hvec[2]); |
451 |
+ |
checkglerr("setting right view"); |
452 |
|
} |
453 |
|
|
454 |
|
|
501 |
|
getkey(levptr(XKeyPressedEvent)); |
502 |
|
break; |
503 |
|
case ButtonPress: |
504 |
< |
getmove(levptr(XButtonPressedEvent)); |
504 |
> |
if (FRAMESTATE(levptr(XButtonPressedEvent)->state)) |
505 |
> |
getframe(levptr(XButtonPressedEvent)); |
506 |
> |
else |
507 |
> |
getmove(levptr(XButtonPressedEvent)); |
508 |
|
break; |
509 |
|
} |
510 |
|
} |
520 |
|
|
521 |
|
|
522 |
|
static |
523 |
< |
draw_grids() /* draw holodeck section grids */ |
523 |
> |
draw_grids(fore) /* draw holodeck section grids */ |
524 |
> |
int fore; |
525 |
|
{ |
526 |
< |
static BYTE gridrgba[4] = {0x0, 0xff, 0xff, 0x00}; |
527 |
< |
|
528 |
< |
if (!mapped) |
529 |
< |
return; |
511 |
< |
glColor4ub(gridrgba[0], gridrgba[1], gridrgba[2], gridrgba[3]); |
526 |
> |
if (fore) |
527 |
> |
glColor4ub(0, 255, 255, 0); |
528 |
> |
else |
529 |
> |
glColor4ub(0, 0, 0, 0); |
530 |
|
glBegin(GL_LINES); /* draw each grid line */ |
531 |
|
gridlines(draw3dline); |
532 |
|
glEnd(); |
533 |
+ |
checkglerr("drawing grid lines"); |
534 |
|
} |
535 |
|
|
536 |
|
|
544 |
|
register int li; |
545 |
|
/* start with old view */ |
546 |
|
copystruct(&nv, &odev.v); |
547 |
< |
/* change view direction */ |
547 |
> |
/* orient our motion */ |
548 |
|
if (viewray(v1, odir, &odev.v, |
549 |
|
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
550 |
|
return(0); /* outside view */ |
551 |
< |
if (mov | orb) { |
551 |
> |
if (mov | orb) { /* moving relative to geometry */ |
552 |
|
#ifdef DOBJ |
553 |
< |
d = dobj_trace(v1, odir); /* check objects */ |
554 |
< |
/* is holodeck in front? */ |
555 |
< |
if ((li = smFindSamp(v1, odir)) >= 0 && |
537 |
< |
(rsL.wp[li][0] - nv.vp[0])*odir[0] + |
538 |
< |
(rsL.wp[li][1] - nv.vp[1])*odir[1] + |
539 |
< |
(rsL.wp[li][2] - nv.vp[2])*odir[2] < d) |
553 |
> |
d = dobj_trace(NULL, v1, odir); /* check objects */ |
554 |
> |
/* check holodeck */ |
555 |
> |
if ((li = smFindSamp(v1, odir)) >= 0) { |
556 |
|
VCOPY(wip, rsL.wp[li]); |
557 |
< |
else if (d < .99*FHUGE) /* object is closer */ |
558 |
< |
VSUM(wip, nv.vp, odir, d); |
559 |
< |
else /* nothing visible */ |
560 |
< |
return(0); |
557 |
> |
if (d < .99*FHUGE && d*d <= dist2(v1, wip)) |
558 |
> |
li = -1; /* object is closer */ |
559 |
> |
} else if (d >= .99*FHUGE) |
560 |
> |
return(0); /* nothing visible */ |
561 |
> |
if (li < 0) |
562 |
> |
VSUM(wip, v1, odir, d); /* else get object point */ |
563 |
|
#else |
564 |
|
if ((li = smFindSamp(v1, odir)) < 0) |
565 |
|
return(0); /* not on window */ |
566 |
|
VCOPY(wip, rsL.wp[li]); |
567 |
|
#endif |
568 |
< |
VSUM(odir, wip, nv.vp, -1.); |
569 |
< |
} else |
568 |
> |
#ifdef DEBUG |
569 |
> |
fprintf(stderr, "moveview: hit %s at (%f,%f,%f) (t=%f)\n", |
570 |
> |
li < 0 ? "object" : "mesh", |
571 |
> |
wip[0], wip[1], wip[2], |
572 |
> |
(wip[0]-odev.v.vp[0])*odir[0] + |
573 |
> |
(wip[1]-odev.v.vp[1])*odir[1] + |
574 |
> |
(wip[2]-odev.v.vp[2])*odir[2]); |
575 |
> |
#endif |
576 |
> |
VSUM(odir, wip, odev.v.vp, -1.); |
577 |
> |
} else /* panning with constant viewpoint */ |
578 |
|
VCOPY(nv.vdir, odir); |
579 |
|
if (orb && mov) { /* orbit left/right */ |
580 |
|
spinvector(odir, odir, nv.vup, d=MOVDEG*PI/180.*mov); |
593 |
|
} |
594 |
|
if (!mov ^ !orb && headlocked) { /* restore head height */ |
595 |
|
VSUM(v1, odev.v.vp, nv.vp, -1.); |
596 |
< |
d = DOT(v1, odev.v.vup); |
596 |
> |
d = DOT(v1, nv.vup); |
597 |
|
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
598 |
|
} |
599 |
|
if (setview(&nv) != NULL) |
605 |
|
|
606 |
|
|
607 |
|
static |
608 |
+ |
getframe(ebut) /* get focus frame */ |
609 |
+ |
XButtonPressedEvent *ebut; |
610 |
+ |
{ |
611 |
+ |
int startx = ebut->x, starty = ebut->y; |
612 |
+ |
int endx, endy; |
613 |
+ |
|
614 |
+ |
XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent)); |
615 |
+ |
endx = levptr(XButtonReleasedEvent)->x; |
616 |
+ |
endy = levptr(XButtonReleasedEvent)->y; |
617 |
+ |
if (endx == startx | endy == starty) { |
618 |
+ |
XBell(ourdisplay, 0); |
619 |
+ |
return; |
620 |
+ |
} |
621 |
+ |
if (endx < startx) {register int c = endx; endx = startx; startx = c;} |
622 |
+ |
if (endy < starty) {register int c = endy; endy = starty; starty = c;} |
623 |
+ |
sprintf(odev_args, "%.3f %.3f %.3f %.3f", |
624 |
+ |
(startx+.5)/odev.hres, 1.-(endy+.5)/odev.vres, |
625 |
+ |
(endx+.5)/odev.hres, 1.-(starty+.5)/odev.vres); |
626 |
+ |
inpresflags |= DFL(DC_FOCUS); |
627 |
+ |
} |
628 |
+ |
|
629 |
+ |
|
630 |
+ |
static |
631 |
|
getmove(ebut) /* get view change */ |
632 |
|
XButtonPressedEvent *ebut; |
633 |
|
{ |
640 |
|
int rootx, rooty, wx, wy; |
641 |
|
unsigned int statemask; |
642 |
|
|
643 |
< |
XNoOp(ourdisplay); |
643 |
> |
XNoOp(ourdisplay); /* makes sure we're not idle */ |
644 |
|
|
645 |
|
lasttime = time(0); nframes = 0; |
646 |
|
while (!XCheckMaskEvent(ourdisplay, |
647 |
|
ButtonReleaseMask, levptr(XEvent))) { |
648 |
< |
|
648 |
> |
/* get cursor position */ |
649 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
650 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
651 |
|
break; /* on another screen */ |
652 |
|
|
653 |
+ |
draw_grids(0); /* clear old grid lines */ |
654 |
+ |
#ifdef STEREO |
655 |
+ |
pushright(); draw_grids(0); popright(); |
656 |
+ |
#endif |
657 |
+ |
/* compute view motion */ |
658 |
|
if (!moveview(wx, odev.vres-1-wy, movdir, movorb)) { |
659 |
|
sleep(1); |
660 |
|
lasttime++; |
661 |
< |
continue; |
661 |
> |
continue; /* cursor in bad place */ |
662 |
|
} |
663 |
+ |
draw_grids(1); /* redraw grid */ |
664 |
|
#ifdef STEREO |
665 |
|
pushright(); |
666 |
< |
glClear(GL_COLOR_BUFFER_BIT); |
612 |
< |
draw_grids(); |
666 |
> |
draw_grids(1); |
667 |
|
smUpdate(&vwright, qlevel); |
668 |
|
#ifdef DOBJ |
669 |
|
dobj_render(); |
670 |
|
#endif |
671 |
|
popright(); |
672 |
|
#endif |
673 |
< |
glClear(GL_COLOR_BUFFER_BIT); |
620 |
< |
draw_grids(); |
673 |
> |
/* redraw mesh */ |
674 |
|
smUpdate(&odev.v, qlevel); |
675 |
|
#ifdef DOBJ |
676 |
< |
dobj_render(); |
676 |
> |
dobj_render(); /* redraw object */ |
677 |
|
#endif |
678 |
|
glFlush(); |
679 |
< |
checkglerr("moving view"); |
627 |
< |
nframes++; |
679 |
> |
nframes++; /* figure out good quality level */ |
680 |
|
thistime = time(0); |
681 |
|
if (thistime - lasttime >= 3 || |
682 |
|
nframes > (int)(3*3*TARGETFPS)) { |
710 |
|
double d, xmin, xmax, ymin, ymax; |
711 |
|
|
712 |
|
if (mindpth >= maxdpth) { |
713 |
< |
dev_zmin = 0.1; |
713 |
> |
dev_zmin = 1.; |
714 |
|
dev_zmax = 100.; |
715 |
|
} else { |
716 |
|
dev_zmin = 0.5*mindpth; |
717 |
< |
dev_zmax = 1.5*maxdpth; |
666 |
< |
if (dev_zmin > dev_zmax/100.) |
667 |
< |
dev_zmin = dev_zmax/100.; |
717 |
> |
dev_zmax = 5.0*maxdpth; |
718 |
|
} |
719 |
|
if (odev.v.vfore > FTINY) |
720 |
|
dev_zmin = odev.v.vfore; |
721 |
|
if (odev.v.vaft > FTINY) |
722 |
|
dev_zmax = odev.v.vaft; |
723 |
< |
if (dev_zmin < dev_zmax/5000.) |
724 |
< |
dev_zmin = dev_zmax/5000.; |
723 |
> |
if (dev_zmin < dev_zmax/100.) |
724 |
> |
dev_zmin = dev_zmax/100.; |
725 |
|
xmax = dev_zmin * tan(PI/180./2. * odev.v.horiz); |
726 |
|
xmin = -xmax; |
727 |
|
d = odev.v.hoff * (xmax - xmin); |
739 |
|
odev.v.vp[1] + odev.v.vdir[1], |
740 |
|
odev.v.vp[2] + odev.v.vdir[2], |
741 |
|
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
742 |
+ |
checkglerr("setting perspective view"); |
743 |
|
} |
744 |
|
|
745 |
|
|
746 |
|
static |
747 |
|
wipeclean() /* prepare for redraw */ |
748 |
|
{ |
749 |
+ |
/* clear depth buffer */ |
750 |
|
#ifdef STEREO |
751 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
752 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
753 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
754 |
|
#endif |
755 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
756 |
< |
smClean(); |
756 |
> |
smClean(); /* reset drawing routines */ |
757 |
> |
setglpersp(&odev.v); /* reset view & clipping planes */ |
758 |
|
} |
759 |
|
|
760 |
|
|
762 |
|
getkey(ekey) /* get input key */ |
763 |
|
register XKeyPressedEvent *ekey; |
764 |
|
{ |
765 |
+ |
Window rootw, childw; |
766 |
+ |
int rootx, rooty, wx, wy; |
767 |
+ |
unsigned int statemask; |
768 |
|
int n; |
769 |
|
char buf[8]; |
770 |
|
|
787 |
|
case 'v': /* spit out view */ |
788 |
|
inpresflags |= DFL(DC_GETVIEW); |
789 |
|
return; |
790 |
+ |
case 'f': /* frame view position */ |
791 |
+ |
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
792 |
+ |
&rootx, &rooty, &wx, &wy, &statemask)) |
793 |
+ |
return; /* on another screen */ |
794 |
+ |
sprintf(odev_args, "%.4f %.4f", (wx+.5)/odev.hres, |
795 |
+ |
1.-(wy+.5)/odev.vres); |
796 |
+ |
inpresflags |= DFL(DC_FOCUS); |
797 |
+ |
return; |
798 |
+ |
case 'F': /* unfocus */ |
799 |
+ |
odev_args[0] = '\0'; |
800 |
+ |
inpresflags |= DFL(DC_FOCUS); |
801 |
+ |
return; |
802 |
|
case '\n': |
803 |
|
case '\r': /* resume computation */ |
804 |
|
inpresflags |= DFL(DC_RESUME); |
809 |
|
case CTRL('L'): /* refresh from server */ |
810 |
|
if (inpresflags & DFL(DC_REDRAW)) |
811 |
|
return; |
812 |
+ |
setglpersp(&odev.v); /* reset clipping planes */ |
813 |
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
814 |
< |
glDisable(GL_DEPTH_TEST); |
815 |
< |
draw_grids(); |
814 |
> |
glDisable(GL_DEPTH_TEST); /* so grids will clear */ |
815 |
> |
draw_grids(1); |
816 |
|
#ifdef STEREO |
817 |
|
pushright(); |
818 |
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
819 |
< |
draw_grids(); |
819 |
> |
draw_grids(1); |
820 |
|
popright(); |
821 |
|
#endif |
822 |
|
glEnable(GL_DEPTH_TEST); |