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#include <ctype.h> |
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#ifndef VIEWHISTLEN |
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#define VIEWHISTLEN 2 /* number of remembered views */ |
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#define VIEWHISTLEN 4 /* number of remembered views */ |
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#endif |
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HOLO *hdlist[HDMAX+1]; /* global holodeck list */ |
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int imm_mode = 0; /* bundles are being delivered immediately */ |
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int do_outside = 0; /* render from outside sections */ |
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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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/* enter main loop */ |
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do { |
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rdy = disp_wait(); |
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if (rdy & RDY_SRV) { /* process server result */ |
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res = serv_result(); |
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if (pause && res != DS_SHUTDOWN) { |
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serv_request(DR_ATTEN, 0, NULL); |
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while ((res = serv_result()) != DS_ACKNOW && |
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res != DS_SHUTDOWN) |
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; |
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} |
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} |
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if (rdy & RDY_DEV) { /* user input from driver */ |
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inp = dev_input(); |
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if (inp & DEV_PUTVIEW) |
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printview(); |
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if (inp & DEV_NEWVIEW) |
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if (inp & DFL(DC_SETVIEW)) |
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new_view(&odev.v); |
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if (inp & DEV_LASTVIEW) |
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if (inp & DFL(DC_GETVIEW)) |
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printview(); |
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if (inp & DFL(DC_LASTVIEW)) |
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new_view(NULL); |
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if (inp & DEV_SHUTDOWN) |
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serv_request(DR_SHUTDOWN, 0, NULL); |
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if (inp & DEV_REDRAW) |
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imm_mode = beam_sync() > 0; |
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if (inp & DEV_WAIT) |
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pause = 1; |
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if (inp & DEV_RESUME) { |
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if (inp & DFL(DC_RESUME)) { |
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serv_request(DR_NOOP, 0, NULL); |
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pause = 0; |
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} |
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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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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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} |
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if (inp & DFL(DC_CLOBBER)) |
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serv_request(DR_CLOBBER, 0, NULL); |
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if (inp & DFL(DC_RESTART)) { |
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serv_request(DR_RESTART, 0, NULL); |
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pause = 0; |
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} |
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if (inp & DFL(DC_QUIT)) |
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serv_request(DR_SHUTDOWN, 0, NULL); |
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} |
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if (rdy & RDY_SIN) /* user input from sstdin */ |
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switch (usr_input()) { |
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break; |
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case DC_RESUME: |
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serv_request(DR_NOOP, 0, NULL); |
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/* fall through */ |
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case DC_KILL: |
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case DC_RESTART: |
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pause = 0; |
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break; |
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} |
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if (rdy & RDY_SRV) { /* process server result */ |
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res = serv_result(); |
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if (pause && res != DS_SHUTDOWN) { |
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serv_request(DR_ATTEN, 0, NULL); |
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while ((res = serv_result()) != DS_ACKNOW && |
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res != DS_SHUTDOWN) |
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; |
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} |
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} |
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} while (res != DS_SHUTDOWN); |
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/* all done */ |
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quit(0); |
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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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char *err; |
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/* restore previous view? */ |
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if (v == NULL) { |
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if (nhist < 2) { |
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error(COMMAND, "no previous view"); |
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return; |
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} |
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nhist--; /* get one before last setting */ |
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if (nhist > 1) /* get one before last setting */ |
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nhist--; |
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else /* else go to end of list */ |
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while (nhist < VIEWHISTLEN && viewhist[nhist].type) |
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nhist++; |
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v = viewhist + ((nhist-1)%VIEWHISTLEN); |
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} else if ((err = setview(v)) != NULL) { |
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} else |
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again: |
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if ((err = setview(v)) != NULL) { |
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error(COMMAND, err); |
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return; |
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} |
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again: |
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if (v->type == VT_PAR) { |
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error(COMMAND, "cannot handle parallel views"); |
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return; |
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case DC_RESUME: /* resume the calculation */ |
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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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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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break; |
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case DC_CLOBBER: /* clobber holodeck */ |
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serv_request(DR_CLOBBER, 0, NULL); |
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break; |
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case DC_RESTART: /* restart rtrace */ |
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serv_request(DR_RESTART, 0, NULL); |
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break; |
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case DC_QUIT: /* quit request */ |
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serv_request(DR_SHUTDOWN, 0, NULL); |
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break; |
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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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break; |
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case DS_STARTIMM: |
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case DS_ENDIMM: |
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imm_mode = msg.type==DS_STARTIMM; |
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if (msg.type == DS_ENDIMM) |
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dev_flush(); /* update display NOW */ |
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/* fall through */ |
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case DS_ACKNOW: |
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case DS_SHUTDOWN: |