1 |
– |
/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
2 |
– |
|
1 |
|
#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ SGI"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
|
#endif |
6 |
– |
|
4 |
|
/* |
5 |
|
* OpenGL driver for holodeck display. |
6 |
|
* Based on GLX driver using T-mesh. |
19 |
|
|
20 |
|
#include "standard.h" |
21 |
|
|
25 |
– |
#include <sys/types.h> |
22 |
|
#include <GL/glx.h> |
23 |
|
#include <GL/glu.h> |
24 |
|
#ifdef STEREO |
25 |
|
#include <X11/extensions/SGIStereo.h> |
26 |
|
#endif |
27 |
+ |
#include <time.h> |
28 |
|
|
29 |
|
#include "rhd_odraw.h" |
30 |
|
#ifdef DOBJ |
36 |
|
#ifndef RAYQLEN |
37 |
|
#define RAYQLEN 0 /* max. rays to queue before flush */ |
38 |
|
#endif |
39 |
+ |
#ifndef MINWIDTH |
40 |
+ |
#define MINWIDTH 480 /* minimum graphics window width */ |
41 |
+ |
#define MINHEIGHT 400 /* minimum graphics window height */ |
42 |
+ |
#endif |
43 |
+ |
#ifndef VIEWDIST |
44 |
+ |
#define VIEWDIST 356 /* assumed viewing distance (mm) */ |
45 |
+ |
#endif |
46 |
+ |
#ifndef BORWIDTH |
47 |
+ |
#define BORWIDTH 5 /* border width */ |
48 |
+ |
#endif |
49 |
|
|
50 |
|
#ifndef FEQ |
51 |
|
#define FEQ(a,b) ((a)-(b) <= FTINY && (a)-(b) >= -FTINY) |
67 |
|
#define MOVDEG (-5) /* degrees to orbit CW/down /frame */ |
68 |
|
#define MOVORB(s) ((s)&ShiftMask ? 1 : (s)&ControlMask ? -1 : 0) |
69 |
|
|
63 |
– |
#define MINWIDTH 480 /* minimum graphics window width */ |
64 |
– |
#define MINHEIGHT 400 /* minimum graphics window height */ |
65 |
– |
|
66 |
– |
#define VIEWDIST 356 /* assumed viewing distance (mm) */ |
67 |
– |
|
68 |
– |
#define BORWIDTH 5 /* border width */ |
69 |
– |
|
70 |
|
#define setstereobuf(bid) (glXWaitGL(), \ |
71 |
|
XSGISetStereoBuffer(ourdisplay, gwind, bid), \ |
72 |
|
glXWaitX()) |
243 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
244 |
|
#endif |
245 |
|
checkglerr("setting rendering parameters"); |
246 |
< |
copystruct(&odev.v, &stdview); |
246 |
> |
odev.v = stdview; |
247 |
|
odev.v.type = VT_PER; |
248 |
|
viewflags = VWSTEADY; /* view starts static */ |
249 |
|
/* map the window */ |
284 |
|
{ |
285 |
|
viewflags |= VWCHANGE; /* pretend our view has changed */ |
286 |
|
wipeclean(); /* clean off display and samples */ |
287 |
+ |
dev_flush(); /* redraw geometry & get depth */ |
288 |
|
rayqleft = 0; /* hold off update */ |
289 |
|
} |
290 |
|
|
330 |
|
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
331 |
|
dev_input(); /* get resize event */ |
332 |
|
} |
333 |
< |
copystruct(&odev.v, nv); /* setview() already called */ |
333 |
< |
#ifdef STEREO |
334 |
< |
copystruct(&vwright, nv); |
335 |
< |
d = eyesepdist / sqrt(nv->hn2); |
336 |
< |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
337 |
< |
/* setview(&vwright); -- Unnecessary */ |
338 |
< |
#endif |
333 |
> |
odev.v = *nv; /* setview() already called */ |
334 |
|
viewflags |= VWCHANGE; |
335 |
|
} |
336 |
+ |
#ifdef STEREO |
337 |
+ |
vwright = *nv; |
338 |
+ |
d = eyesepdist / sqrt(nv->hn2); |
339 |
+ |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
340 |
+ |
/* setview(&vwright); -- Unnecessary */ |
341 |
+ |
#endif |
342 |
|
wipeclean(); |
343 |
|
return(1); |
344 |
|
} |
347 |
|
dev_section(gfn, pfn) /* add octree for geometry rendering */ |
348 |
|
char *gfn, *pfn; |
349 |
|
{ |
349 |
– |
extern char *index(); |
350 |
|
char *cp; |
351 |
|
|
352 |
|
if (gfn == NULL) { |
372 |
|
char *cmd, *args; |
373 |
|
{ |
374 |
|
#ifdef DOBJ |
375 |
< |
if (dobj_command(cmd, args) >= 0) |
375 |
> |
int vischange; |
376 |
> |
|
377 |
> |
if ((vischange = dobj_command(cmd, args)) >= 0) { |
378 |
> |
if (vischange) { |
379 |
> |
imm_mode = beam_sync(1) > 0; |
380 |
> |
dev_clear(); |
381 |
> |
} |
382 |
|
return; |
383 |
+ |
} |
384 |
|
#endif |
385 |
|
sprintf(errmsg, "%s: unknown command", cmd); |
386 |
|
error(COMMAND, errmsg); |
516 |
|
else |
517 |
|
pbuf = NULL; |
518 |
|
#ifdef STEREO |
519 |
< |
setstereobuf(STEREO_BUFFER_RIGHT); |
519 |
> |
pushright(); |
520 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
521 |
|
GL_DEPTH_COMPONENT, GL_FLOAT, depthright); |
522 |
|
if (pbuf != NULL) { |
531 |
|
else |
532 |
|
*dbp = mapdepth(*dbp); |
533 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
527 |
– |
setstereobuf(STEREO_BUFFER_LEFT); |
534 |
|
odDepthMap(1, depthright); |
535 |
+ |
popright(); |
536 |
|
#endif |
537 |
|
/* read back depth buffer */ |
538 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
554 |
|
glClear(GL_DEPTH_BUFFER_BIT); /* clear system depth buffer */ |
555 |
|
odDepthMap(0, depthbuffer); /* transfer depth data */ |
556 |
|
if (pbuf != NULL) |
557 |
< |
free((char *)pbuf); /* free our portal buffer */ |
557 |
> |
free((void *)pbuf); /* free our portal buffer */ |
558 |
|
} |
559 |
|
|
560 |
|
|
565 |
|
return; |
566 |
|
#ifdef STEREO |
567 |
|
odDepthMap(1, NULL); |
568 |
< |
free((char *)depthright); |
568 |
> |
free((void *)depthright); |
569 |
|
depthright = NULL; |
570 |
|
#endif |
571 |
|
odDepthMap(0, NULL); |
572 |
< |
free((char *)depthbuffer); |
572 |
> |
free((void *)depthbuffer); |
573 |
|
depthbuffer = NULL; |
574 |
|
} |
575 |
|
|
719 |
|
double d, d1; |
720 |
|
register int li; |
721 |
|
/* start with old view */ |
722 |
< |
copystruct(&nv, &odev.v); |
722 |
> |
nv = odev.v; |
723 |
|
/* orient our motion */ |
724 |
|
if (viewray(v1, odir, &odev.v, |
725 |
|
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
789 |
|
|
790 |
|
|
791 |
|
static |
792 |
+ |
waitabit() /* pause a moment */ |
793 |
+ |
{ |
794 |
+ |
struct timespec ts; |
795 |
+ |
ts.tv_sec = 0; |
796 |
+ |
ts.tv_nsec = 50000000; |
797 |
+ |
nanosleep(&ts, NULL); |
798 |
+ |
} |
799 |
+ |
|
800 |
+ |
|
801 |
+ |
static |
802 |
|
getmove(ebut) /* get view change */ |
803 |
|
XButtonPressedEvent *ebut; |
804 |
|
{ |
815 |
|
setglpersp(); /* start us off in perspective */ |
816 |
|
while (!XCheckMaskEvent(ourdisplay, |
817 |
|
ButtonReleaseMask, levptr(XEvent))) { |
818 |
+ |
/* pause so as not to move too fast */ |
819 |
+ |
waitabit(); |
820 |
|
/* get cursor position */ |
821 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
822 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
868 |
|
dev_zmax = 100.; |
869 |
|
} else { |
870 |
|
dev_zmin = 0.5*depthlim[0]; |
871 |
< |
dev_zmax = 2.0*depthlim[1]; |
871 |
> |
dev_zmax = 1.25*depthlim[1]; |
872 |
|
if (dev_zmin > dev_zmax/5.) |
873 |
|
dev_zmin = dev_zmax/5.; |
874 |
|
} |
876 |
|
dev_zmin = odev.v.vfore; |
877 |
|
if (odev.v.vaft > FTINY) |
878 |
|
dev_zmax = odev.v.vaft; |
879 |
< |
if (dev_zmin < dev_zmax/100.) |
880 |
< |
dev_zmin = dev_zmax/100.; |
879 |
> |
if (dev_zmin*500. < dev_zmax) |
880 |
> |
dev_zmin = dev_zmax/500.; |
881 |
|
setzrat(); |
882 |
|
xmax = dev_zmin * tan(PI/180./2. * odev.v.horiz); |
883 |
|
xmin = -xmax; |
953 |
|
viewflags &= ~VWCHANGE; /* change noted */ |
954 |
|
} else if (viewflags & VWSTEADY) |
955 |
|
odRedrawAll(); |
956 |
< |
setglpersp(&odev.v); /* reset view & clipping planes */ |
956 |
> |
setglpersp(); /* reset view & clipping planes */ |
957 |
|
} |
958 |
|
|
959 |
|
|
1013 |
|
return; |
1014 |
|
case CTRL('L'): /* refresh from server */ |
1015 |
|
if (inpresflags & DFL(DC_REDRAW)) |
1016 |
< |
return; |
1016 |
> |
return; /* already called */ |
1017 |
|
XRaiseWindow(ourdisplay, gwind); |
1018 |
|
XFlush(ourdisplay); /* raise up window */ |
1019 |
|
sleep(1); /* wait for restacking */ |
1020 |
|
dev_clear(); /* clear buffer and samples */ |
1021 |
|
odRemap(1); /* start fresh histogram */ |
1003 |
– |
dev_flush(); /* redraw geometry */ |
1004 |
– |
rayqleft = 0; /* hold off update */ |
1022 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
1023 |
|
return; |
1024 |
|
case 'K': /* kill rtrace process(es) */ |