| 1 |
– |
/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
| 2 |
– |
|
| 1 |
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#ifndef lint |
| 2 |
< |
static char SCCSid[] = "$SunId$ SGI"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
| 3 |
|
#endif |
| 6 |
– |
|
| 4 |
|
/* |
| 5 |
|
* Holodeck display process. |
| 6 |
|
*/ |
| 7 |
|
|
| 8 |
+ |
#include <string.h> |
| 9 |
+ |
#include <ctype.h> |
| 10 |
+ |
|
| 11 |
+ |
#include "rterror.h" |
| 12 |
|
#include "rholo.h" |
| 13 |
|
#include "rhdisp.h" |
| 14 |
|
#include "rhdriver.h" |
| 15 |
|
#include "selcall.h" |
| 15 |
– |
#include <ctype.h> |
| 16 |
|
|
| 17 |
|
#ifndef VIEWHISTLEN |
| 18 |
|
#define VIEWHISTLEN 4 /* number of remembered views */ |
| 22 |
|
#define FSIZDEF 0.125 /* default focus frame size */ |
| 23 |
|
#endif |
| 24 |
|
|
| 25 |
+ |
#if defined(freebsd) |
| 26 |
+ |
#define fbufcnt(f) ((f)->_r) |
| 27 |
+ |
#elif defined(__GNUC__) |
| 28 |
+ |
#define fbufcnt(f) ((f)->_IO_read_end - (f)->_IO_read_ptr) |
| 29 |
+ |
#else |
| 30 |
+ |
#define fbufcnt(f) ((f)->_cnt) |
| 31 |
+ |
#endif |
| 32 |
+ |
|
| 33 |
|
HOLO *hdlist[HDMAX+1]; /* global holodeck list */ |
| 34 |
|
|
| 35 |
+ |
char *hdgfn[HDMAX]; /* holodeck section geometry list */ |
| 36 |
+ |
char *hdpfn[HDMAX]; /* section portal list */ |
| 37 |
+ |
|
| 38 |
|
char cmdlist[DC_NCMDS][8] = DC_INIT; |
| 39 |
|
|
| 40 |
|
int imm_mode = 0; /* bundles are being delivered immediately */ |
| 48 |
|
FILE *sstdin, *sstdout; /* server's standard input and output */ |
| 49 |
|
|
| 50 |
|
#ifdef DEBUG |
| 40 |
– |
#include <sys/types.h> |
| 51 |
|
extern time_t time(); |
| 52 |
|
static time_t tmodesw; |
| 53 |
|
static time_t timm, tadd; |
| 58 |
|
#define RDY_DEV 02 |
| 59 |
|
#define RDY_SIN 04 |
| 60 |
|
|
| 61 |
+ |
static int disp_wait(void); |
| 62 |
+ |
static void add_holo(HDGRID *hdg, char *gfn, char *pfn); |
| 63 |
+ |
static void disp_bundle(PACKHEAD *p); |
| 64 |
+ |
static void new_view(VIEW *v); |
| 65 |
+ |
static void set_focus(char *args); |
| 66 |
+ |
static int usr_input(void); |
| 67 |
+ |
static void printview(void); |
| 68 |
|
|
| 69 |
< |
main(argc, argv) |
| 70 |
< |
int argc; |
| 71 |
< |
char *argv[]; |
| 69 |
> |
|
| 70 |
> |
int |
| 71 |
> |
main( |
| 72 |
> |
int argc, |
| 73 |
> |
char *argv[] |
| 74 |
> |
) |
| 75 |
|
{ |
| 56 |
– |
extern int eputs(); |
| 76 |
|
int rdy, inp, res = 0, pause = 0; |
| 77 |
|
|
| 78 |
|
progname = argv[0]; |
| 107 |
|
inp = dev_input(); |
| 108 |
|
if (inp & DFL(DC_SETVIEW)) |
| 109 |
|
new_view(&odev.v); |
| 110 |
+ |
else if (inp & DFL(DC_LASTVIEW)) |
| 111 |
+ |
new_view(NULL); |
| 112 |
+ |
if (inp & DFL(DC_REDRAW)) |
| 113 |
+ |
imm_mode = beam_sync(1) > 0; |
| 114 |
|
if (inp & DFL(DC_GETVIEW)) |
| 115 |
|
printview(); |
| 93 |
– |
if (inp & DFL(DC_LASTVIEW)) |
| 94 |
– |
new_view(NULL); |
| 116 |
|
if (inp & DFL(DC_FOCUS)) |
| 117 |
|
set_focus(odev_args); |
| 118 |
|
if (inp & DFL(DC_KILL)) { |
| 131 |
|
} |
| 132 |
|
if (inp & DFL(DC_PAUSE)) |
| 133 |
|
pause = 1; |
| 113 |
– |
if (inp & DFL(DC_REDRAW)) |
| 114 |
– |
imm_mode = beam_sync(1) > 0; |
| 134 |
|
if (inp & DFL(DC_QUIT)) |
| 135 |
|
serv_request(DR_SHUTDOWN, 0, NULL); |
| 136 |
|
} |
| 160 |
|
#endif |
| 161 |
|
/* all done */ |
| 162 |
|
quit(0); |
| 163 |
+ |
return 0; /* pro forma return */ |
| 164 |
|
} |
| 165 |
|
|
| 166 |
|
|
| 167 |
< |
int |
| 168 |
< |
disp_wait() /* wait for more input */ |
| 167 |
> |
static int |
| 168 |
> |
disp_wait(void) /* wait for more input */ |
| 169 |
|
{ |
| 170 |
|
fd_set readset, errset; |
| 171 |
|
int flgs; |
| 172 |
|
int n; |
| 153 |
– |
register int i; |
| 173 |
|
/* see if we can avoid select call */ |
| 174 |
+ |
if (hdlist[0] == NULL) |
| 175 |
+ |
return(RDY_SRV); /* initialize first */ |
| 176 |
|
flgs = 0; /* flag what's ready already */ |
| 177 |
< |
if (imm_mode || stdin->_cnt > 0) |
| 177 |
> |
if (imm_mode || fbufcnt(stdin) > 0) |
| 178 |
|
flgs |= RDY_SRV; |
| 179 |
< |
if (sstdin != NULL && sstdin->_cnt > 0) |
| 179 |
> |
if (sstdin != NULL && fbufcnt(sstdin) > 0) |
| 180 |
|
flgs |= RDY_SIN; |
| 181 |
|
if (odev.inpready) |
| 182 |
|
flgs |= RDY_DEV; |
| 214 |
|
} |
| 215 |
|
|
| 216 |
|
|
| 217 |
< |
add_holo(hdg) /* register a new holodeck section */ |
| 218 |
< |
HDGRID *hdg; |
| 217 |
> |
static void |
| 218 |
> |
add_holo( /* a new holodeck section */ |
| 219 |
> |
HDGRID *hdg, |
| 220 |
> |
char *gfn, |
| 221 |
> |
char *pfn |
| 222 |
> |
) |
| 223 |
|
{ |
| 224 |
|
VIEW nv; |
| 225 |
|
double d; |
| 226 |
< |
register int hd; |
| 226 |
> |
int hd; |
| 227 |
|
|
| 228 |
|
for (hd = 0; hd < HDMAX && hdlist[hd] != NULL; hd++) |
| 229 |
|
; |
| 232 |
|
hdlist[hd] = (HOLO *)malloc(sizeof(HOLO)); |
| 233 |
|
if (hdlist[hd] == NULL) |
| 234 |
|
error(SYSTEM, "out of memory in add_holo"); |
| 235 |
< |
bcopy((char *)hdg, (char *)hdlist[hd], sizeof(HDGRID)); |
| 235 |
> |
memcpy((void *)hdlist[hd], (void *)hdg, sizeof(HDGRID)); |
| 236 |
|
hdcompgrid(hdlist[hd]); |
| 237 |
+ |
hdgfn[hd] = savestr(gfn); |
| 238 |
+ |
hdpfn[hd] = pfn && *pfn ? savestr(pfn) : (char *)NULL; |
| 239 |
|
if (hd) |
| 240 |
|
return; |
| 241 |
|
/* set initial viewpoint */ |
| 242 |
< |
copystruct(&nv, &odev.v); |
| 242 |
> |
nv = odev.v; |
| 243 |
|
VSUM(nv.vp, hdlist[0]->orig, hdlist[0]->xv[0], 0.5); |
| 244 |
|
VSUM(nv.vp, nv.vp, hdlist[0]->xv[1], 0.5); |
| 245 |
|
VSUM(nv.vp, nv.vp, hdlist[0]->xv[2], 0.5); |
| 255 |
|
} |
| 256 |
|
|
| 257 |
|
|
| 258 |
< |
disp_bundle(p) /* display a ray bundle */ |
| 259 |
< |
register PACKHEAD *p; |
| 258 |
> |
static void |
| 259 |
> |
disp_bundle( /* display a ray bundle */ |
| 260 |
> |
PACKHEAD *p |
| 261 |
> |
) |
| 262 |
|
{ |
| 263 |
|
GCOORD gc[2]; |
| 264 |
|
FVECT ro, rd, wp; |
| 265 |
|
double d; |
| 266 |
< |
register int i; |
| 266 |
> |
int i; |
| 267 |
|
/* get beam coordinates */ |
| 268 |
< |
if (p->hd < 0 | p->hd >= HDMAX || hdlist[p->hd] == NULL) |
| 268 |
> |
if ((p->hd < 0) | (p->hd >= HDMAX) || hdlist[p->hd] == NULL) |
| 269 |
|
error(INTERNAL, "bad holodeck number in disp_bundle"); |
| 270 |
|
if (!hdbcoord(gc, hdlist[p->hd], p->bi)) |
| 271 |
|
error(INTERNAL, "bad beam index in disp_bundle"); |
| 286 |
|
} |
| 287 |
|
|
| 288 |
|
|
| 289 |
< |
new_view(v) /* change view parameters */ |
| 290 |
< |
register VIEW *v; |
| 289 |
> |
static void |
| 290 |
> |
new_view( /* change view parameters */ |
| 291 |
> |
VIEW *v |
| 292 |
> |
) |
| 293 |
|
{ |
| 294 |
|
static VIEW viewhist[VIEWHISTLEN]; |
| 295 |
|
static unsigned nhist; |
| 296 |
|
VIEW *dv; |
| 297 |
|
int i, res[2]; |
| 298 |
+ |
int16 *slist; |
| 299 |
|
char *err; |
| 300 |
|
/* restore previous view? */ |
| 301 |
|
if (v == NULL) { |
| 311 |
|
error(COMMAND, err); |
| 312 |
|
return; |
| 313 |
|
} |
| 314 |
+ |
if (!dev_view(v)) /* notify display driver */ |
| 315 |
+ |
goto again; |
| 316 |
|
if (v->type == VT_PAR) { |
| 317 |
|
error(COMMAND, "cannot handle parallel views"); |
| 318 |
|
return; |
| 319 |
|
} |
| 320 |
< |
if (!dev_view(v)) /* notify display driver */ |
| 321 |
< |
goto again; |
| 322 |
< |
dev_flush(); /* update screen */ |
| 289 |
< |
beam_init(0); /* compute new beam set */ |
| 290 |
< |
for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) |
| 291 |
< |
if (!beam_view(dv, res[0], res[1])) { |
| 320 |
> |
beam_init(odev.firstuse); /* compute new beam set */ |
| 321 |
> |
for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) { |
| 322 |
> |
if ((slist = beam_view(dv, res[0], res[1])) == NULL) { |
| 323 |
|
if (!nhist) { |
| 324 |
|
error(COMMAND, "invalid starting view"); |
| 325 |
|
return; |
| 326 |
|
} |
| 327 |
< |
copystruct(v, viewhist + ((nhist-1)%VIEWHISTLEN)); |
| 328 |
< |
goto again; |
| 329 |
< |
} |
| 327 |
> |
*v = *(viewhist + ((nhist-1)%VIEWHISTLEN)); |
| 328 |
> |
goto again; /* XXX overloading dev_section()? */ |
| 329 |
> |
} |
| 330 |
> |
DCHECK(*slist < 0, WARNING, "no visible sections in new_view"); |
| 331 |
> |
for ( ; *slist >= 0; slist++) |
| 332 |
> |
dev_section(hdgfn[*slist], hdpfn[*slist]); |
| 333 |
> |
} |
| 334 |
> |
dev_section(NULL,NULL); /* end section list */ |
| 335 |
> |
dev_flush(); /* update display */ |
| 336 |
|
/* update server */ |
| 337 |
< |
imm_mode = beam_sync(0) > 0; |
| 337 |
> |
imm_mode = beam_sync(odev.firstuse) > 0; |
| 338 |
|
/* record new view */ |
| 339 |
|
if (v < viewhist || v >= viewhist+VIEWHISTLEN) { |
| 340 |
< |
copystruct(viewhist + (nhist%VIEWHISTLEN), v); |
| 340 |
> |
*(viewhist + (nhist%VIEWHISTLEN)) = *v; |
| 341 |
|
nhist++; |
| 342 |
|
} |
| 343 |
|
} |
| 344 |
|
|
| 345 |
|
|
| 346 |
< |
set_focus(args) /* set focus frame */ |
| 347 |
< |
char *args; |
| 346 |
> |
static void |
| 347 |
> |
set_focus( /* set focus frame */ |
| 348 |
> |
char *args |
| 349 |
> |
) |
| 350 |
|
{ |
| 351 |
|
double hcent, vcent, hsiz, vsiz; |
| 352 |
|
VIEW *dv, vwfocus; |
| 369 |
|
beam_init(0); /* add basic views */ |
| 370 |
|
for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) |
| 371 |
|
beam_view(dv, res[0]>>4, res[1]>>4); |
| 372 |
< |
copystruct(&vwfocus, &odev.v); /* add focus view */ |
| 372 |
> |
vwfocus = odev.v; /* add focus view */ |
| 373 |
|
switch (odev.v.type) { |
| 374 |
|
case VT_PER: |
| 375 |
|
vwfocus.horiz = 2.*180./PI*atan( |
| 382 |
|
vwfocus.horiz = hsiz * odev.v.horiz; |
| 383 |
|
vwfocus.vert = vsiz * odev.v.vert; |
| 384 |
|
break; |
| 385 |
+ |
case VT_PLS: |
| 386 |
+ |
vwfocus.horiz = hsiz * sin((PI/180./2.)*odev.v.horiz) / |
| 387 |
+ |
(1.0 + cos((PI/180./2.)*odev.v.horiz)); |
| 388 |
+ |
vwfocus.horiz *= vwfocus.horiz; |
| 389 |
+ |
vwfocus.horiz = (2.*180./PI)*acos((1. - vwfocus.horiz) / |
| 390 |
+ |
(1. + vwfocus.horiz)); |
| 391 |
+ |
vwfocus.vert = vsiz * sin((PI/180./2.)*odev.v.vert) / |
| 392 |
+ |
(1.0 + cos((PI/180./2.)*odev.v.vert)); |
| 393 |
+ |
vwfocus.vert *= vwfocus.vert; |
| 394 |
+ |
vwfocus.vert = (2.*180./PI)*acos((1. - vwfocus.vert) / |
| 395 |
+ |
(1. + vwfocus.vert)); |
| 396 |
+ |
break; |
| 397 |
|
case VT_HEM: |
| 398 |
|
vwfocus.horiz = 2.*180./PI*asin( |
| 399 |
|
hsiz * sin(PI/180./2.*odev.v.horiz) ); |
| 417 |
|
} |
| 418 |
|
|
| 419 |
|
|
| 420 |
< |
int |
| 421 |
< |
usr_input() /* get user input and process it */ |
| 420 |
> |
static int |
| 421 |
> |
usr_input(void) /* get user input and process it */ |
| 422 |
|
{ |
| 423 |
|
VIEW vparams; |
| 424 |
|
char cmd[256]; |
| 425 |
< |
register char *args; |
| 426 |
< |
register int i; |
| 425 |
> |
char *args; |
| 426 |
> |
int i; |
| 427 |
|
|
| 428 |
|
if (fgets(cmd, sizeof(cmd), sstdin) == NULL) { |
| 429 |
|
fclose(sstdin); |
| 447 |
|
} |
| 448 |
|
switch (i) { |
| 449 |
|
case DC_SETVIEW: /* set the view */ |
| 450 |
< |
copystruct(&vparams, &odev.v); |
| 450 |
> |
vparams = odev.v; |
| 451 |
|
if (!sscanview(&vparams, args)) |
| 452 |
|
error(COMMAND, "missing view options"); |
| 453 |
|
else |
| 489 |
|
} |
| 490 |
|
|
| 491 |
|
|
| 492 |
< |
printview() /* print our current view to server stdout */ |
| 492 |
> |
static void |
| 493 |
> |
printview(void) /* print our current view to server stdout */ |
| 494 |
|
{ |
| 495 |
|
fputs(VIEWSTR, sstdout); |
| 496 |
|
fprintview(&odev.v, sstdout); |
| 500 |
|
|
| 501 |
|
|
| 502 |
|
int |
| 503 |
< |
serv_result() /* get next server result and process it */ |
| 503 |
> |
serv_result(void) /* get next server result and process it */ |
| 504 |
|
{ |
| 505 |
|
static char *buf = NULL; |
| 506 |
|
static int bufsiz = 0; |
| 507 |
|
MSGHEAD msg; |
| 456 |
– |
int n; |
| 508 |
|
/* read message header */ |
| 509 |
< |
if (fread((char *)&msg, sizeof(MSGHEAD), 1, stdin) != 1) |
| 509 |
> |
if (getbinary(&msg, sizeof(MSGHEAD), 1, stdin) != 1) |
| 510 |
|
goto readerr; |
| 511 |
|
if (msg.nbytes > 0) { /* get the message body */ |
| 512 |
|
if (msg.nbytes > bufsiz) { |
| 513 |
|
if (buf == NULL) |
| 514 |
|
buf = (char *)malloc(bufsiz=msg.nbytes); |
| 515 |
|
else |
| 516 |
< |
buf = (char *)realloc(buf, bufsiz=msg.nbytes); |
| 516 |
> |
buf = (char *)realloc((void *)buf, |
| 517 |
> |
bufsiz=msg.nbytes); |
| 518 |
|
if (buf == NULL) |
| 519 |
|
error(SYSTEM, "out of memory in serv_result"); |
| 520 |
|
} |
| 521 |
< |
if (fread(buf, 1, msg.nbytes, stdin) != msg.nbytes) |
| 521 |
> |
if (getbinary(buf, 1, msg.nbytes, stdin) != msg.nbytes) |
| 522 |
|
goto readerr; |
| 523 |
|
} |
| 524 |
|
switch (msg.type) { /* process results */ |
| 529 |
|
disp_bundle((PACKHEAD *)buf); |
| 530 |
|
break; |
| 531 |
|
case DS_ADDHOLO: |
| 532 |
< |
if (msg.nbytes != sizeof(HDGRID)) |
| 532 |
> |
if (msg.nbytes < sizeof(HDGRID)+2) |
| 533 |
|
error(INTERNAL, "bad holodeck record from server"); |
| 534 |
< |
add_holo((HDGRID *)buf); |
| 534 |
> |
add_holo((HDGRID *)buf, buf+sizeof(HDGRID), |
| 535 |
> |
buf+sizeof(HDGRID)+strlen(buf+sizeof(HDGRID))+1); |
| 536 |
|
break; |
| 537 |
|
case DS_OUTSECT: |
| 538 |
|
do_outside = 1; |
| 543 |
|
break; |
| 544 |
|
case DS_STARTIMM: |
| 545 |
|
case DS_ENDIMM: |
| 546 |
+ |
if (!(imm_mode = (msg.type==DS_STARTIMM))) |
| 547 |
+ |
dev_flush(); |
| 548 |
|
#ifdef DEBUG |
| 549 |
|
{ |
| 550 |
|
time_t tnow = time(NULL); |
| 553 |
|
tmodesw = tnow; |
| 554 |
|
} |
| 555 |
|
#endif |
| 501 |
– |
if (!(imm_mode = msg.type==DS_STARTIMM)) |
| 502 |
– |
dev_flush(); |
| 556 |
|
goto noargs; |
| 557 |
|
case DS_ACKNOW: |
| 558 |
|
case DS_SHUTDOWN: |
| 572 |
|
if (feof(stdin)) |
| 573 |
|
error(SYSTEM, "server process died"); |
| 574 |
|
error(SYSTEM, "error reading from server process"); |
| 575 |
+ |
return -1; |
| 576 |
|
} |
| 577 |
|
|
| 578 |
|
|
| 579 |
< |
serv_request(type, nbytes, p) /* send a request to the server process */ |
| 580 |
< |
int type, nbytes; |
| 581 |
< |
char *p; |
| 579 |
> |
void |
| 580 |
> |
serv_request( /* send a request to the server process */ |
| 581 |
> |
int type, |
| 582 |
> |
int nbytes, |
| 583 |
> |
char *p |
| 584 |
> |
) |
| 585 |
|
{ |
| 586 |
|
MSGHEAD msg; |
| 587 |
|
int m; |
| 588 |
|
/* consistency checks */ |
| 589 |
< |
#ifdef DEBUG |
| 590 |
< |
if (nbytes < 0 || nbytes > 0 & p == NULL) |
| 534 |
< |
error(CONSISTENCY, "bad buffer handed to serv_request"); |
| 535 |
< |
#endif |
| 589 |
> |
DCHECK(nbytes < 0 || nbytes > 0 & p == NULL, |
| 590 |
> |
CONSISTENCY, "bad buffer handed to serv_request"); |
| 591 |
|
/* get server's attention for big request */ |
| 592 |
|
if (nbytes >= BIGREQSIZ-sizeof(MSGHEAD)) { |
| 593 |
|
serv_request(DR_ATTEN, 0, NULL); |
| 597 |
|
} |
| 598 |
|
msg.type = type; /* write and flush the message */ |
| 599 |
|
msg.nbytes = nbytes; |
| 600 |
< |
fwrite((char *)&msg, sizeof(MSGHEAD), 1, stdout); |
| 600 |
> |
putbinary(&msg, sizeof(MSGHEAD), 1, stdout); |
| 601 |
|
if (nbytes > 0) |
| 602 |
< |
fwrite(p, 1, nbytes, stdout); |
| 602 |
> |
putbinary(p, 1, nbytes, stdout); |
| 603 |
|
if (fflush(stdout) < 0) |
| 604 |
|
error(SYSTEM, "write error in serv_request"); |
| 605 |
|
} |
| 606 |
|
|
| 607 |
|
|
| 608 |
< |
eputs(s) /* put error message to stderr */ |
| 609 |
< |
register char *s; |
| 608 |
> |
void |
| 609 |
> |
eputs( /* put error message to stderr */ |
| 610 |
> |
const char *s |
| 611 |
> |
) |
| 612 |
|
{ |
| 613 |
|
static int midline = 0; |
| 614 |
|
|
| 626 |
|
} |
| 627 |
|
|
| 628 |
|
|
| 629 |
< |
quit(code) /* clean up and exit */ |
| 630 |
< |
int code; |
| 629 |
> |
void |
| 630 |
> |
quit( /* clean up and exit */ |
| 631 |
> |
int code |
| 632 |
> |
) |
| 633 |
|
{ |
| 634 |
+ |
if (code) |
| 635 |
+ |
exit(code); |
| 636 |
|
if (odev.v.type) |
| 637 |
|
dev_close(); |
| 638 |
< |
exit(code); |
| 638 |
> |
exit(0); |
| 639 |
|
} |