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 */ |
280 |
|
nv->vert = odev.v.vert; |
281 |
|
return(0); |
282 |
|
} |
283 |
< |
if (nv != &odev.v && /* resize window? */ |
284 |
< |
(!FEQ(nv->horiz,odev.v.horiz) || |
285 |
< |
!FEQ(nv->vert,odev.v.vert))) { |
286 |
< |
int dw = DisplayWidth(ourdisplay,ourscreen); |
287 |
< |
int dh = DisplayHeight(ourdisplay,ourscreen); |
283 |
> |
if (nv != &odev.v) { |
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); |
289 |
|
|
290 |
< |
dw -= 25; /* for window frame */ |
291 |
< |
dh -= 50; |
290 |
> |
dw -= 25; /* for window frame */ |
291 |
> |
dh -= 50; |
292 |
|
#ifdef STEREO |
293 |
< |
dh /= 2; |
293 |
> |
dh /= 2; |
294 |
|
#endif |
295 |
< |
odev.hres = 2.*VIEWDIST/pwidth * |
296 |
< |
tan(PI/180./2.*nv->horiz); |
297 |
< |
odev.vres = 2.*VIEWDIST/pheight * |
298 |
< |
tan(PI/180./2.*nv->vert); |
299 |
< |
if (odev.hres > dw) { |
300 |
< |
odev.vres = dw * odev.vres / odev.hres; |
301 |
< |
odev.hres = dw; |
295 |
> |
odev.hres = 2.*VIEWDIST/pwidth * |
296 |
> |
tan(PI/180./2.*nv->horiz); |
297 |
> |
odev.vres = 2.*VIEWDIST/pheight * |
298 |
> |
tan(PI/180./2.*nv->vert); |
299 |
> |
if (odev.hres > dw) { |
300 |
> |
odev.vres = dw * odev.vres / odev.hres; |
301 |
> |
odev.hres = dw; |
302 |
> |
} |
303 |
> |
if (odev.vres > dh) { |
304 |
> |
odev.hres = dh * odev.hres / odev.vres; |
305 |
> |
odev.vres = dh; |
306 |
> |
} |
307 |
> |
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
308 |
> |
dev_input(); /* get resize event */ |
309 |
|
} |
310 |
< |
if (odev.vres > dh) { |
295 |
< |
odev.hres = dh * odev.hres / odev.vres; |
296 |
< |
odev.vres = dh; |
297 |
< |
} |
298 |
< |
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
299 |
< |
dev_input(); /* get resize event */ |
300 |
< |
} |
301 |
< |
copystruct(&odev.v, nv); /* setview() already called */ |
302 |
< |
setglpersp(&odev.v); |
310 |
> |
copystruct(&odev.v, nv); /* setview() already called */ |
311 |
|
#ifdef STEREO |
312 |
< |
copystruct(&vwright, nv); |
313 |
< |
d = eyesepdist / sqrt(nv->hn2); |
314 |
< |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
315 |
< |
/* setview(&vwright); -- Unnecessary */ |
312 |
> |
copystruct(&vwright, nv); |
313 |
> |
d = eyesepdist / sqrt(nv->hn2); |
314 |
> |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
315 |
> |
/* setview(&vwright); -- Unnecessary */ |
316 |
|
#endif |
317 |
< |
checkglerr("setting view"); |
317 |
> |
} |
318 |
|
wipeclean(); |
319 |
|
return(1); |
320 |
|
} |
375 |
|
return; |
376 |
|
} |
377 |
|
#endif |
378 |
< |
smNewSamp(c, d, p); /* add to display representation */ |
371 |
< |
if (p != NULL) { |
378 |
> |
if (p != NULL) { /* add depth to our range */ |
379 |
|
depth = (p[0] - odev.v.vp[0])*d[0] + |
380 |
|
(p[1] - odev.v.vp[1])*d[1] + |
381 |
|
(p[2] - odev.v.vp[2])*d[2]; |
386 |
|
maxdpth = depth; |
387 |
|
} |
388 |
|
} |
389 |
+ |
smNewSamp(c, d, p); /* add to display representation */ |
390 |
|
if (!--rayqleft) |
391 |
|
dev_flush(); /* flush output */ |
392 |
|
} |
395 |
|
int |
396 |
|
dev_flush() /* flush output */ |
397 |
|
{ |
398 |
+ |
if (mapped) { |
399 |
|
#ifdef STEREO |
400 |
< |
pushright(); /* update right eye */ |
401 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
393 |
< |
smUpdate(&vwright, 100); |
400 |
> |
pushright(); /* update right eye */ |
401 |
> |
smUpdate(&vwright, 100); |
402 |
|
#ifdef DOBJ |
403 |
< |
dobj_render(); /* usually in foreground */ |
403 |
> |
dobj_render(); /* usually in foreground */ |
404 |
|
#endif |
405 |
< |
popright(); /* update left eye */ |
398 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
405 |
> |
popright(); /* update left eye */ |
406 |
|
#endif |
407 |
< |
smUpdate(&odev.v, 100); |
407 |
> |
smUpdate(&odev.v, 100); |
408 |
> |
checkglerr("rendering mesh"); |
409 |
|
#ifdef DOBJ |
410 |
< |
dobj_render(); |
410 |
> |
dobj_render(); |
411 |
|
#endif |
412 |
< |
glFlush(); /* flush OGL */ |
413 |
< |
checkglerr("flushing display"); |
412 |
> |
glFlush(); /* flush OGL */ |
413 |
> |
} |
414 |
|
rayqleft = RAYQLEN; |
415 |
|
/* flush X11 and return # pending */ |
416 |
|
return(odev.inpready = XPending(ourdisplay)); |
441 |
|
glPushMatrix(); |
442 |
|
d = -eyesepdist / sqrt(odev.v.hn2); |
443 |
|
glTranslated(d*odev.v.hvec[0], d*odev.v.hvec[1], d*odev.v.hvec[2]); |
444 |
+ |
checkglerr("setting right view"); |
445 |
|
} |
446 |
|
|
447 |
|
|
494 |
|
getkey(levptr(XKeyPressedEvent)); |
495 |
|
break; |
496 |
|
case ButtonPress: |
497 |
< |
getmove(levptr(XButtonPressedEvent)); |
497 |
> |
if (FRAMESTATE(levptr(XButtonPressedEvent)->state)) |
498 |
> |
getframe(levptr(XButtonPressedEvent)); |
499 |
> |
else |
500 |
> |
getmove(levptr(XButtonPressedEvent)); |
501 |
|
break; |
502 |
|
} |
503 |
|
} |
513 |
|
|
514 |
|
|
515 |
|
static |
516 |
< |
draw_grids() /* draw holodeck section grids */ |
516 |
> |
draw_grids(fore) /* draw holodeck section grids */ |
517 |
> |
int fore; |
518 |
|
{ |
519 |
< |
static BYTE gridrgba[4] = {0x0, 0xff, 0xff, 0x00}; |
520 |
< |
|
521 |
< |
if (!mapped) |
522 |
< |
return; |
510 |
< |
glColor4ub(gridrgba[0], gridrgba[1], gridrgba[2], gridrgba[3]); |
519 |
> |
if (fore) |
520 |
> |
glColor4ub(0, 255, 255, 0); |
521 |
> |
else |
522 |
> |
glColor4ub(0, 0, 0, 0); |
523 |
|
glBegin(GL_LINES); /* draw each grid line */ |
524 |
|
gridlines(draw3dline); |
525 |
|
glEnd(); |
526 |
+ |
checkglerr("drawing grid lines"); |
527 |
|
} |
528 |
|
|
529 |
|
|
537 |
|
register int li; |
538 |
|
/* start with old view */ |
539 |
|
copystruct(&nv, &odev.v); |
540 |
< |
/* change view direction */ |
540 |
> |
/* orient our motion */ |
541 |
|
if (viewray(v1, odir, &odev.v, |
542 |
|
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
543 |
|
return(0); /* outside view */ |
544 |
< |
if (mov | orb) { |
544 |
> |
if (mov | orb) { /* moving relative to geometry */ |
545 |
|
#ifdef DOBJ |
546 |
< |
d = dobj_trace(v1, odir); /* check objects */ |
547 |
< |
/* is holodeck in front? */ |
548 |
< |
if ((li = smFindSamp(v1, odir)) >= 0 && |
536 |
< |
(rsL.wp[li][0] - nv.vp[0])*odir[0] + |
537 |
< |
(rsL.wp[li][1] - nv.vp[1])*odir[1] + |
538 |
< |
(rsL.wp[li][2] - nv.vp[2])*odir[2] < d) |
546 |
> |
d = dobj_trace(NULL, v1, odir); /* check objects */ |
547 |
> |
/* check holodeck */ |
548 |
> |
if ((li = smFindSamp(v1, odir)) >= 0) { |
549 |
|
VCOPY(wip, rsL.wp[li]); |
550 |
< |
else if (d < .99*FHUGE) /* object is closer */ |
551 |
< |
VSUM(wip, nv.vp, odir, d); |
552 |
< |
else /* nothing visible */ |
553 |
< |
return(0); |
550 |
> |
if (d < .99*FHUGE && d*d <= dist2(v1, wip)) |
551 |
> |
li = -1; /* object is closer */ |
552 |
> |
} else if (d >= .99*FHUGE) |
553 |
> |
return(0); /* nothing visible */ |
554 |
> |
if (li < 0) |
555 |
> |
VSUM(wip, v1, odir, d); /* else get object point */ |
556 |
|
#else |
557 |
|
if ((li = smFindSamp(v1, odir)) < 0) |
558 |
|
return(0); /* not on window */ |
559 |
|
VCOPY(wip, rsL.wp[li]); |
560 |
|
#endif |
561 |
< |
VSUM(odir, wip, nv.vp, -1.); |
562 |
< |
} else |
561 |
> |
#ifdef DEBUG |
562 |
> |
fprintf(stderr, "moveview: hit %s at (%f,%f,%f) (t=%f)\n", |
563 |
> |
li < 0 ? "object" : "mesh", |
564 |
> |
wip[0], wip[1], wip[2], |
565 |
> |
(wip[0]-odev.v.vp[0])*odir[0] + |
566 |
> |
(wip[1]-odev.v.vp[1])*odir[1] + |
567 |
> |
(wip[2]-odev.v.vp[2])*odir[2]); |
568 |
> |
#endif |
569 |
> |
VSUM(odir, wip, odev.v.vp, -1.); |
570 |
> |
} else /* panning with constant viewpoint */ |
571 |
|
VCOPY(nv.vdir, odir); |
572 |
|
if (orb && mov) { /* orbit left/right */ |
573 |
|
spinvector(odir, odir, nv.vup, d=MOVDEG*PI/180.*mov); |
586 |
|
} |
587 |
|
if (!mov ^ !orb && headlocked) { /* restore head height */ |
588 |
|
VSUM(v1, odev.v.vp, nv.vp, -1.); |
589 |
< |
d = DOT(v1, odev.v.vup); |
589 |
> |
d = DOT(v1, nv.vup); |
590 |
|
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
591 |
|
} |
592 |
|
if (setview(&nv) != NULL) |
598 |
|
|
599 |
|
|
600 |
|
static |
601 |
+ |
getframe(ebut) /* get focus frame */ |
602 |
+ |
XButtonPressedEvent *ebut; |
603 |
+ |
{ |
604 |
+ |
int startx = ebut->x, starty = ebut->y; |
605 |
+ |
int endx, endy; |
606 |
+ |
|
607 |
+ |
XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent)); |
608 |
+ |
endx = levptr(XButtonReleasedEvent)->x; |
609 |
+ |
endy = levptr(XButtonReleasedEvent)->y; |
610 |
+ |
if (endx == startx | endy == starty) { |
611 |
+ |
XBell(ourdisplay, 0); |
612 |
+ |
return; |
613 |
+ |
} |
614 |
+ |
if (endx < startx) {register int c = endx; endx = startx; startx = c;} |
615 |
+ |
if (endy < starty) {register int c = endy; endy = starty; starty = c;} |
616 |
+ |
sprintf(odev_args, "%.3f %.3f %.3f %.3f", |
617 |
+ |
(startx+.5)/odev.hres, 1.-(endy+.5)/odev.vres, |
618 |
+ |
(endx+.5)/odev.hres, 1.-(starty+.5)/odev.vres); |
619 |
+ |
inpresflags |= DFL(DC_FOCUS); |
620 |
+ |
} |
621 |
+ |
|
622 |
+ |
|
623 |
+ |
static |
624 |
|
getmove(ebut) /* get view change */ |
625 |
|
XButtonPressedEvent *ebut; |
626 |
|
{ |
633 |
|
int rootx, rooty, wx, wy; |
634 |
|
unsigned int statemask; |
635 |
|
|
636 |
< |
XNoOp(ourdisplay); |
636 |
> |
XNoOp(ourdisplay); /* makes sure we're not idle */ |
637 |
|
|
638 |
|
lasttime = time(0); nframes = 0; |
639 |
|
while (!XCheckMaskEvent(ourdisplay, |
640 |
|
ButtonReleaseMask, levptr(XEvent))) { |
641 |
< |
|
641 |
> |
/* get cursor position */ |
642 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
643 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
644 |
|
break; /* on another screen */ |
645 |
|
|
646 |
+ |
draw_grids(0); /* clear old grid lines */ |
647 |
+ |
#ifdef STEREO |
648 |
+ |
pushright(); draw_grids(0); popright(); |
649 |
+ |
#endif |
650 |
+ |
/* compute view motion */ |
651 |
|
if (!moveview(wx, odev.vres-1-wy, movdir, movorb)) { |
652 |
|
sleep(1); |
653 |
|
lasttime++; |
654 |
< |
continue; |
654 |
> |
continue; /* cursor in bad place */ |
655 |
|
} |
656 |
+ |
draw_grids(1); /* redraw grid */ |
657 |
|
#ifdef STEREO |
658 |
|
pushright(); |
659 |
< |
glClear(GL_COLOR_BUFFER_BIT); |
611 |
< |
draw_grids(); |
659 |
> |
draw_grids(1); |
660 |
|
smUpdate(&vwright, qlevel); |
661 |
|
#ifdef DOBJ |
662 |
|
dobj_render(); |
663 |
|
#endif |
664 |
|
popright(); |
665 |
|
#endif |
666 |
< |
glClear(GL_COLOR_BUFFER_BIT); |
619 |
< |
draw_grids(); |
666 |
> |
/* redraw mesh */ |
667 |
|
smUpdate(&odev.v, qlevel); |
668 |
|
#ifdef DOBJ |
669 |
< |
dobj_render(); |
669 |
> |
dobj_render(); /* redraw object */ |
670 |
|
#endif |
671 |
|
glFlush(); |
672 |
< |
checkglerr("moving view"); |
626 |
< |
nframes++; |
672 |
> |
nframes++; /* figure out good quality level */ |
673 |
|
thistime = time(0); |
674 |
|
if (thistime - lasttime >= 3 || |
675 |
|
nframes > (int)(3*3*TARGETFPS)) { |
734 |
|
odev.v.vp[1] + odev.v.vdir[1], |
735 |
|
odev.v.vp[2] + odev.v.vdir[2], |
736 |
|
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
737 |
+ |
checkglerr("setting perspective view"); |
738 |
|
} |
739 |
|
|
740 |
|
|
741 |
|
static |
742 |
|
wipeclean() /* prepare for redraw */ |
743 |
|
{ |
744 |
+ |
/* clear depth buffer */ |
745 |
|
#ifdef STEREO |
746 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
747 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
748 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
749 |
|
#endif |
750 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
751 |
< |
smClean(); |
751 |
> |
smClean(); /* reset drawing routines */ |
752 |
> |
setglpersp(&odev.v); /* reset view & clipping planes */ |
753 |
|
} |
754 |
|
|
755 |
|
|
757 |
|
getkey(ekey) /* get input key */ |
758 |
|
register XKeyPressedEvent *ekey; |
759 |
|
{ |
760 |
+ |
Window rootw, childw; |
761 |
+ |
int rootx, rooty, wx, wy; |
762 |
+ |
unsigned int statemask; |
763 |
|
int n; |
764 |
|
char buf[8]; |
765 |
|
|
782 |
|
case 'v': /* spit out view */ |
783 |
|
inpresflags |= DFL(DC_GETVIEW); |
784 |
|
return; |
785 |
+ |
case 'f': /* frame view position */ |
786 |
+ |
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
787 |
+ |
&rootx, &rooty, &wx, &wy, &statemask)) |
788 |
+ |
return; /* on another screen */ |
789 |
+ |
sprintf(odev_args, "%.4f %.4f", (wx+.5)/odev.hres, |
790 |
+ |
1.-(wy+.5)/odev.vres); |
791 |
+ |
inpresflags |= DFL(DC_FOCUS); |
792 |
+ |
return; |
793 |
+ |
case 'F': /* unfocus */ |
794 |
+ |
odev_args[0] = '\0'; |
795 |
+ |
inpresflags |= DFL(DC_FOCUS); |
796 |
+ |
return; |
797 |
|
case '\n': |
798 |
|
case '\r': /* resume computation */ |
799 |
|
inpresflags |= DFL(DC_RESUME); |
804 |
|
case CTRL('L'): /* refresh from server */ |
805 |
|
if (inpresflags & DFL(DC_REDRAW)) |
806 |
|
return; |
807 |
+ |
setglpersp(&odev.v); /* reset clipping planes */ |
808 |
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
809 |
< |
glDisable(GL_DEPTH_TEST); |
810 |
< |
draw_grids(); |
809 |
> |
glDisable(GL_DEPTH_TEST); /* so grids will clear */ |
810 |
> |
draw_grids(1); |
811 |
|
#ifdef STEREO |
812 |
|
pushright(); |
813 |
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
814 |
< |
draw_grids(); |
814 |
> |
draw_grids(1); |
815 |
|
popright(); |
816 |
|
#endif |
817 |
|
glEnable(GL_DEPTH_TEST); |