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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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int imm_mode = 0; /* bundles are being delivered immediately */ |
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|
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int do_outside = 0; /* render from outside sections */ |
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|
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double eyesepdist = 1; /* eye separation distance */ |
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|
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char *progname; /* global argv[0] */ |
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FILE *sstdin, *sstdout; /* server's standard input and output */ |
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|
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#ifdef DEBUG |
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#include <sys/types.h> |
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extern time_t time(); |
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static time_t tmodesw; |
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static time_t timm, tadd; |
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static long nimmrays, naddrays; |
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#endif |
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|
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#define RDY_SRV 01 |
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#define RDY_DEV 02 |
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#define RDY_SIN 04 |
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sstdin = fdopen(inp, "r"); |
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/* set command error vector */ |
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erract[COMMAND].pf = eputs; |
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#ifdef DEBUG |
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tmodesw = time(NULL); |
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#endif |
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/* enter main loop */ |
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do { |
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rdy = disp_wait(); |
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if (inp & DFL(DC_PAUSE)) |
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pause = 1; |
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if (inp & DFL(DC_REDRAW)) |
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imm_mode = beam_sync() > 0; |
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imm_mode = beam_sync(1) > 0; |
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if (inp & DFL(DC_KILL)) { |
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serv_request(DR_KILL, 0, NULL); |
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pause = 0; |
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break; |
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} |
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} while (res != DS_SHUTDOWN); |
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#ifdef DEBUG |
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if (timm && nimmrays) |
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fprintf(stderr, |
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"%s: %.1f rays recalled/second (%ld rays total)\n", |
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progname, (double)nimmrays/timm, nimmrays); |
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if (tadd && naddrays) |
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fprintf(stderr, |
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"%s: %.1f rays calculated/second (%ld rays total)\n", |
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progname, (double)naddrays/tadd, naddrays); |
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#endif |
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/* all done */ |
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quit(0); |
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} |
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n = odev.ifd+1; |
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if (sstdin != NULL) { |
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FD_SET(fileno(sstdin), &readset); |
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FD_SET(fileno(sstdin), &errset); |
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if (fileno(sstdin) >= n) |
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n = fileno(sstdin) + 1; |
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} |
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flgs |= RDY_SRV; |
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if (FD_ISSET(odev.ifd, &readset) || FD_ISSET(odev.ifd, &errset)) |
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flgs |= RDY_DEV; |
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if (sstdin != NULL && FD_ISSET(fileno(sstdin), &readset)) |
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if (sstdin != NULL && (FD_ISSET(fileno(sstdin), &readset) || |
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FD_ISSET(fileno(sstdin), &errset))) |
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flgs |= RDY_SIN; |
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return(flgs); |
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} |
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HDGRID *hdg; |
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{ |
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VIEW nv; |
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double d; |
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register int hd; |
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for (hd = 0; hd < HDMAX && hdlist[hd] != NULL; hd++) |
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VSUM(nv.vp, nv.vp, hdlist[0]->xv[2], 0.5); |
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fcross(nv.vdir, hdlist[0]->xv[1], hdlist[0]->xv[2]); |
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VCOPY(nv.vup, hdlist[0]->xv[2]); |
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if (do_outside) { |
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normalize(nv.vdir); |
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d = VLEN(hdlist[0]->xv[1]); |
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d += VLEN(hdlist[0]->xv[2]); |
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VSUM(nv.vp, nv.vp, nv.vdir, -d); |
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} |
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new_view(&nv); |
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} |
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for (i = p->nr; i--; ) { |
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hdray(ro, rd, hdlist[p->hd], gc, packra(p)[i].r); |
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d = hddepth(hdlist[p->hd], packra(p)[i].d); |
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VSUM(wp, ro, rd, d); /* might be behind viewpoint */ |
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dev_value(packra(p)[i].v, wp, rd); |
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if (d < .99*FHUGE) { |
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VSUM(wp, ro, rd, d); /* might be behind viewpoint */ |
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dev_value(packra(p)[i].v, rd, wp); |
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} else |
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dev_value(packra(p)[i].v, rd, NULL); |
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} |
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#ifdef DEBUG |
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if (imm_mode) nimmrays += p->nr; |
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else naddrays += p->nr; |
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#endif |
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} |
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{ |
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static VIEW viewhist[VIEWHISTLEN]; |
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static unsigned nhist; |
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VIEW *dv; |
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int i, res[2]; |
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char *err; |
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/* restore previous view? */ |
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if (v == NULL) { |
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error(COMMAND, "cannot handle parallel views"); |
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return; |
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} |
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if (!dev_view(v)) /* update display driver */ |
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if (!dev_view(v)) /* notify display driver */ |
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goto again; |
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dev_flush(); /* update screen */ |
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if (!beam_view(v)) /* update beam list */ |
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goto again; |
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beam_init(0); /* compute new beam set */ |
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for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) |
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if (!beam_view(dv, res[0], res[1])) { |
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if (!nhist) { |
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error(COMMAND, "invalid starting view"); |
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return; |
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} |
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copystruct(v, viewhist + ((nhist-1)%VIEWHISTLEN)); |
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goto again; |
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} |
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beam_sync(0); /* update server */ |
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/* record new view */ |
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if (v < viewhist || v >= viewhist+VIEWHISTLEN) { |
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copystruct(viewhist + (nhist%VIEWHISTLEN), v); |
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usr_input() /* get user input and process it */ |
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{ |
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VIEW vparams; |
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char cmd[128]; |
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char cmd[256]; |
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register char *args; |
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register int i; |
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|
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if (fgets(cmd, sizeof(cmd), sstdin) == NULL) |
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return(DC_QUIT); |
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if (fgets(cmd, sizeof(cmd), sstdin) == NULL) { |
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fclose(sstdin); |
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sstdin = NULL; |
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return(-1); |
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} |
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if (!*cmd) |
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return(DC_RESUME); |
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for (args = cmd; *args && !isspace(*args); args++) |
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; |
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while (isspace(*args)) |
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*args++ = '\0'; |
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if (!*cmd) |
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return(DC_RESUME); |
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if (*args && args[i=strlen(args)-1] == '\n') |
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args[i] = '\0'; |
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for (i = 0; i < DC_NCMDS; i++) |
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if (!strcmp(cmd, cmdlist[i])) |
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break; |
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if (i >= DC_NCMDS) { |
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sprintf(errmsg, "unknown command: %s", cmd); |
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error(COMMAND, errmsg); |
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dev_auxcom(cmd, args); |
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return(-1); |
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} |
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switch (i) { |
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/* handled in main() */ |
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break; |
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case DC_REDRAW: /* redraw from server */ |
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imm_mode = beam_sync() > 0; |
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imm_mode = beam_sync(1) > 0; |
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dev_clear(); |
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break; |
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case DC_KILL: /* kill rtrace process(es) */ |
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serv_request(DR_KILL, 0, NULL); |
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error(INTERNAL, "bad holodeck record from server"); |
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add_holo((HDGRID *)buf); |
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break; |
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case DS_OUTSECT: |
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do_outside = 1; |
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goto noargs; |
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case DS_EYESEP: |
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if (msg.nbytes <= 1 || (eyesepdist = atof(buf)) <= FTINY) |
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error(INTERNAL, "bad eye separation from server"); |
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break; |
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case DS_STARTIMM: |
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case DS_ENDIMM: |
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#ifdef DEBUG |
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if (imm_mode != (msg.type==DS_STARTIMM)) { |
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time_t tnow = time(NULL); |
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if (imm_mode) timm += tnow - tmodesw; |
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else tadd += tnow - tmodesw; |
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tmodesw = tnow; |
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} |
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#endif |
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imm_mode = msg.type==DS_STARTIMM; |
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/* fall through */ |
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goto noargs; |
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case DS_ACKNOW: |
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case DS_SHUTDOWN: |
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if (msg.nbytes) { |
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sprintf(errmsg, |
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"unexpected body with server message %d", |
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msg.type); |
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error(INTERNAL, errmsg); |
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} |
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break; |
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goto noargs; |
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default: |
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error(INTERNAL, "unrecognized result from server process"); |
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} |
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return(msg.type); /* return message type */ |
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noargs: |
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if (msg.nbytes) { |
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sprintf(errmsg, "unexpected body with server message %d", |
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msg.type); |
440 |
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error(INTERNAL, errmsg); |
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} |
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return(msg.type); |
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readerr: |
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if (feof(stdin)) |
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error(SYSTEM, "server process died"); |