| 1 | < | /* Copyright (c) 1997 Silicon Graphics, Inc. */ | 
| 1 | > | /* Copyright (c) 1998 Silicon Graphics, Inc. */ | 
| 2 |  |  | 
| 3 |  | #ifndef lint | 
| 4 |  | static char SCCSid[] = "$SunId$ SGI"; | 
| 26 |  |  | 
| 27 |  | int     do_outside = 0;         /* render from outside sections */ | 
| 28 |  |  | 
| 29 | + | double  eyesepdist = 1;         /* eye separation distance */ | 
| 30 | + |  | 
| 31 |  | char    *progname;              /* global argv[0] */ | 
| 32 |  |  | 
| 33 |  | FILE    *sstdin, *sstdout;      /* server's standard input and output */ | 
| 88 |  | printview(); | 
| 89 |  | if (inp & DFL(DC_LASTVIEW)) | 
| 90 |  | new_view(NULL); | 
| 89 | – | if (inp & DFL(DC_RESUME)) { | 
| 90 | – | serv_request(DR_NOOP, 0, NULL); | 
| 91 | – | pause = 0; | 
| 92 | – | } | 
| 93 | – | if (inp & DFL(DC_PAUSE)) | 
| 94 | – | pause = 1; | 
| 95 | – | if (inp & DFL(DC_REDRAW)) | 
| 96 | – | imm_mode = beam_sync() > 0; | 
| 91 |  | if (inp & DFL(DC_KILL)) { | 
| 92 |  | serv_request(DR_KILL, 0, NULL); | 
| 93 |  | pause = 0; | 
| 98 |  | serv_request(DR_RESTART, 0, NULL); | 
| 99 |  | pause = 0; | 
| 100 |  | } | 
| 101 | + | if (inp & DFL(DC_RESUME)) { | 
| 102 | + | serv_request(DR_NOOP, 0, NULL); | 
| 103 | + | pause = 0; | 
| 104 | + | } | 
| 105 | + | if (inp & DFL(DC_PAUSE)) | 
| 106 | + | pause = 1; | 
| 107 | + | if (inp & DFL(DC_REDRAW)) | 
| 108 | + | imm_mode = beam_sync(1) > 0; | 
| 109 |  | if (inp & DFL(DC_QUIT)) | 
| 110 |  | serv_request(DR_SHUTDOWN, 0, NULL); | 
| 111 |  | } | 
| 146 |  | int     n; | 
| 147 |  | register int    i; | 
| 148 |  | /* see if we can avoid select call */ | 
| 149 | + | flgs = 0;               /* flag what's ready already */ | 
| 150 |  | if (imm_mode || stdin->_cnt > 0) | 
| 151 | < | return(RDY_SRV); | 
| 151 | > | flgs |= RDY_SRV; | 
| 152 |  | if (sstdin != NULL && sstdin->_cnt > 0) | 
| 153 | < | return(RDY_SIN); | 
| 154 | < | if (dev_flush()) | 
| 153 | > | flgs |= RDY_SIN; | 
| 154 | > | if (odev.inpready) | 
| 155 | > | flgs |= RDY_DEV; | 
| 156 | > | if (flgs)               /* got something? */ | 
| 157 | > | return(flgs); | 
| 158 | > | if (dev_flush())        /* else flush output & check keyboard+mouse */ | 
| 159 |  | return(RDY_DEV); | 
| 160 | < | /* make the call */ | 
| 160 | > | /* if nothing, we need to call select */ | 
| 161 |  | FD_ZERO(&readset); FD_ZERO(&errset); | 
| 162 |  | FD_SET(0, &readset); | 
| 163 |  | FD_SET(0, &errset); | 
| 166 |  | n = odev.ifd+1; | 
| 167 |  | if (sstdin != NULL) { | 
| 168 |  | FD_SET(fileno(sstdin), &readset); | 
| 169 | + | FD_SET(fileno(sstdin), &errset); | 
| 170 |  | if (fileno(sstdin) >= n) | 
| 171 |  | n = fileno(sstdin) + 1; | 
| 172 |  | } | 
| 176 |  | return(0); | 
| 177 |  | error(SYSTEM, "select call failure in disp_wait"); | 
| 178 |  | } | 
| 171 | – | flgs = 0;               /* flag what's ready */ | 
| 179 |  | if (FD_ISSET(0, &readset) || FD_ISSET(0, &errset)) | 
| 180 |  | flgs |= RDY_SRV; | 
| 181 |  | if (FD_ISSET(odev.ifd, &readset) || FD_ISSET(odev.ifd, &errset)) | 
| 182 |  | flgs |= RDY_DEV; | 
| 183 | < | if (sstdin != NULL && FD_ISSET(fileno(sstdin), &readset)) | 
| 183 | > | if (sstdin != NULL && (FD_ISSET(fileno(sstdin), &readset) || | 
| 184 | > | FD_ISSET(fileno(sstdin), &errset))) | 
| 185 |  | flgs |= RDY_SIN; | 
| 186 |  | return(flgs); | 
| 187 |  | } | 
| 238 |  | for (i = p->nr; i--; ) { | 
| 239 |  | hdray(ro, rd, hdlist[p->hd], gc, packra(p)[i].r); | 
| 240 |  | d = hddepth(hdlist[p->hd], packra(p)[i].d); | 
| 241 | < | VSUM(wp, ro, rd, d);            /* might be behind viewpoint */ | 
| 242 | < | dev_value(packra(p)[i].v, wp, rd); | 
| 241 | > | if (d < .99*FHUGE) { | 
| 242 | > | VSUM(wp, ro, rd, d);    /* might be behind viewpoint */ | 
| 243 | > | dev_value(packra(p)[i].v, rd, wp); | 
| 244 | > | } else | 
| 245 | > | dev_value(packra(p)[i].v, rd, NULL); | 
| 246 |  | } | 
| 247 |  | #ifdef DEBUG | 
| 248 |  | if (imm_mode) nimmrays += p->nr; | 
| 256 |  | { | 
| 257 |  | static VIEW     viewhist[VIEWHISTLEN]; | 
| 258 |  | static unsigned nhist; | 
| 259 | + | VIEW    *dv; | 
| 260 | + | int     i, res[2]; | 
| 261 |  | char    *err; | 
| 262 |  | /* restore previous view? */ | 
| 263 |  | if (v == NULL) { | 
| 277 |  | error(COMMAND, "cannot handle parallel views"); | 
| 278 |  | return; | 
| 279 |  | } | 
| 280 | < | if (!dev_view(v))       /* update display driver */ | 
| 280 | > | if (!dev_view(v))       /* notify display driver */ | 
| 281 |  | goto again; | 
| 282 |  | dev_flush();            /* update screen */ | 
| 283 | < | if (!beam_view(v))      /* update beam list */ | 
| 284 | < | goto again; | 
| 283 | > | beam_init(0);           /* compute new beam set */ | 
| 284 | > | for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) | 
| 285 | > | if (!beam_view(dv, res[0], res[1])) { | 
| 286 | > | if (!nhist) { | 
| 287 | > | error(COMMAND, "invalid starting view"); | 
| 288 | > | return; | 
| 289 | > | } | 
| 290 | > | copystruct(v, viewhist + ((nhist-1)%VIEWHISTLEN)); | 
| 291 | > | goto again; | 
| 292 | > | } | 
| 293 | > | beam_sync(0);           /* update server */ | 
| 294 |  | /* record new view */ | 
| 295 |  | if (v < viewhist || v >= viewhist+VIEWHISTLEN) { | 
| 296 |  | copystruct(viewhist + (nhist%VIEWHISTLEN), v); | 
| 303 |  | usr_input()                     /* get user input and process it */ | 
| 304 |  | { | 
| 305 |  | VIEW    vparams; | 
| 306 | < | char    cmd[128]; | 
| 306 | > | char    cmd[256]; | 
| 307 |  | register char   *args; | 
| 308 |  | register int    i; | 
| 309 |  |  | 
| 310 | < | if (fgets(cmd, sizeof(cmd), sstdin) == NULL) | 
| 311 | < | return(DC_QUIT); | 
| 310 | > | if (fgets(cmd, sizeof(cmd), sstdin) == NULL) { | 
| 311 | > | fclose(sstdin); | 
| 312 | > | sstdin = NULL; | 
| 313 | > | return(-1); | 
| 314 | > | } | 
| 315 | > | if (*cmd == '\n') | 
| 316 | > | return(DC_RESUME); | 
| 317 |  | for (args = cmd; *args && !isspace(*args); args++) | 
| 318 |  | ; | 
| 319 |  | while (isspace(*args)) | 
| 320 |  | *args++ = '\0'; | 
| 294 | – | if (!*cmd) | 
| 295 | – | return(DC_RESUME); | 
| 321 |  | if (*args && args[i=strlen(args)-1] == '\n') | 
| 322 |  | args[i] = '\0'; | 
| 323 |  | for (i = 0; i < DC_NCMDS; i++) | 
| 324 |  | if (!strcmp(cmd, cmdlist[i])) | 
| 325 |  | break; | 
| 326 |  | if (i >= DC_NCMDS) { | 
| 327 | < | sprintf(errmsg, "unknown command: %s", cmd); | 
| 303 | < | error(COMMAND, errmsg); | 
| 327 | > | dev_auxcom(cmd, args); | 
| 328 |  | return(-1); | 
| 329 |  | } | 
| 330 |  | switch (i) { | 
| 346 |  | /* handled in main() */ | 
| 347 |  | break; | 
| 348 |  | case DC_REDRAW:                 /* redraw from server */ | 
| 349 | < | imm_mode = beam_sync() > 0; | 
| 349 | > | imm_mode = beam_sync(1) > 0; | 
| 350 |  | dev_clear(); | 
| 351 |  | break; | 
| 352 |  | case DC_KILL:                   /* kill rtrace process(es) */ | 
| 413 |  | break; | 
| 414 |  | case DS_OUTSECT: | 
| 415 |  | do_outside = 1; | 
| 416 | + | goto noargs; | 
| 417 | + | case DS_EYESEP: | 
| 418 | + | if (msg.nbytes <= 1 || (eyesepdist = atof(buf)) <= FTINY) | 
| 419 | + | error(INTERNAL, "bad eye separation from server"); | 
| 420 |  | break; | 
| 421 |  | case DS_STARTIMM: | 
| 422 |  | case DS_ENDIMM: | 
| 429 |  | } | 
| 430 |  | #endif | 
| 431 |  | imm_mode = msg.type==DS_STARTIMM; | 
| 432 | < | /* fall through */ | 
| 432 | > | goto noargs; | 
| 433 |  | case DS_ACKNOW: | 
| 434 |  | case DS_SHUTDOWN: | 
| 435 | < | if (msg.nbytes) { | 
| 408 | < | sprintf(errmsg, | 
| 409 | < | "unexpected body with server message %d", | 
| 410 | < | msg.type); | 
| 411 | < | error(INTERNAL, errmsg); | 
| 412 | < | } | 
| 413 | < | break; | 
| 435 | > | goto noargs; | 
| 436 |  | default: | 
| 437 |  | error(INTERNAL, "unrecognized result from server process"); | 
| 438 |  | } | 
| 439 |  | return(msg.type);               /* return message type */ | 
| 440 | + | noargs: | 
| 441 | + | if (msg.nbytes) { | 
| 442 | + | sprintf(errmsg, "unexpected body with server message %d", | 
| 443 | + | msg.type); | 
| 444 | + | error(INTERNAL, errmsg); | 
| 445 | + | } | 
| 446 | + | return(msg.type); | 
| 447 |  | readerr: | 
| 448 |  | if (feof(stdin)) | 
| 449 |  | error(SYSTEM, "server process died"); | 
| 457 |  | { | 
| 458 |  | MSGHEAD msg; | 
| 459 |  | int     m; | 
| 460 | + | /* consistency checks */ | 
| 461 | + | #ifdef DEBUG | 
| 462 | + | if (nbytes < 0 || nbytes > 0 & p == NULL) | 
| 463 | + | error(CONSISTENCY, "bad buffer handed to serv_request"); | 
| 464 | + | #endif | 
| 465 |  | /* get server's attention for big request */ | 
| 466 |  | if (nbytes >= BIGREQSIZ-sizeof(MSGHEAD)) { | 
| 467 |  | serv_request(DR_ATTEN, 0, NULL); |