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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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/* Copyright (c) 1999 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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#define VIEWHISTLEN 4 /* number of remembered views */ |
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#endif |
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|
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#ifndef FSIZDEF |
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#define FSIZDEF 0.125 /* default focus frame size */ |
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#endif |
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|
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HOLO *hdlist[HDMAX+1]; /* global holodeck list */ |
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|
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char *hdgfn[HDMAX]; /* holodeck section geometry list */ |
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char *hdpfn[HDMAX]; /* section portal list */ |
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|
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char cmdlist[DC_NCMDS][8] = DC_INIT; |
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|
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int imm_mode = 0; /* bundles are being delivered immediately */ |
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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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inp = dev_input(); |
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if (inp & DFL(DC_SETVIEW)) |
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new_view(&odev.v); |
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else if (inp & DFL(DC_LASTVIEW)) |
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new_view(NULL); |
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if (inp & DFL(DC_REDRAW)) |
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imm_mode = beam_sync(1) > 0; |
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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 & DFL(DC_FOCUS)) |
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set_focus(odev_args); |
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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_PAUSE)) |
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pause = 1; |
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if (inp & DFL(DC_REDRAW)) |
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imm_mode = beam_sync(1) > 0; |
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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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int n; |
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register int i; |
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/* see if we can avoid select call */ |
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if (hdlist[0] == NULL) |
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return(RDY_SRV); /* initialize first */ |
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flgs = 0; /* flag what's ready already */ |
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if (imm_mode || stdin->_cnt > 0) |
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flgs |= RDY_SRV; |
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} |
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add_holo(hdg) /* register a new holodeck section */ |
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add_holo(hdg, gfn, pfn) /* register a new holodeck section */ |
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HDGRID *hdg; |
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char *gfn, *pfn; |
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{ |
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VIEW nv; |
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double d; |
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error(SYSTEM, "out of memory in add_holo"); |
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bcopy((char *)hdg, (char *)hdlist[hd], sizeof(HDGRID)); |
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hdcompgrid(hdlist[hd]); |
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hdgfn[hd] = savestr(gfn); |
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hdpfn[hd] = pfn && *pfn ? savestr(pfn) : (char *)NULL; |
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if (hd) |
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return; |
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/* set initial viewpoint */ |
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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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int2 *slist; |
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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, err); |
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return; |
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} |
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if (!dev_view(v)) /* notify display driver */ |
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goto 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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} |
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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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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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beam_init(odev.firstuse); /* compute new beam set */ |
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for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) { |
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if ((slist = beam_view(dv, res[0], res[1])) == NULL) { |
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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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goto again; /* poss. overloading dev_section()? */ |
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} |
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DCHECK(*slist < 0, WARNING, "no visible sections in new_view"); |
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for ( ; *slist >= 0; slist++) |
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dev_section(hdgfn[*slist], hdpfn[*slist]); |
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} |
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dev_section(NULL,NULL); /* end section list */ |
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dev_flush(); /* update display */ |
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/* update server */ |
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imm_mode = beam_sync(0) > 0; |
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imm_mode = beam_sync(odev.firstuse) > 0; |
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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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} |
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|
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set_focus(args) /* set focus frame */ |
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char *args; |
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{ |
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double hcent, vcent, hsiz, vsiz; |
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VIEW *dv, vwfocus; |
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int i, res[2]; |
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|
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i = sscanf(args, "%lf %lf %lf %lf", &hcent, &vcent, &hsiz, &vsiz); |
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if (i < 2 || hcent < 0 || hcent > 1 || vcent < 0 || vcent > 1) { |
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beam_init(0); /* restore view */ |
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for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) |
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beam_view(dv, res[0], res[1]); |
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beam_sync(0); /* update server */ |
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return; |
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} |
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if (i < 4 || hsiz <= hcent || hsiz > 1 || vsiz <= vcent || vsiz > 1) |
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hsiz = vsiz = FSIZDEF; /* gave center only */ |
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else { |
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hsiz -= hcent; hcent += 0.5*hsiz; /* gave min and max */ |
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vsiz -= vcent; vcent += 0.5*vsiz; |
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} |
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beam_init(0); /* add basic views */ |
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for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) |
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beam_view(dv, res[0]>>4, res[1]>>4); |
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copystruct(&vwfocus, &odev.v); /* add focus view */ |
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switch (odev.v.type) { |
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case VT_PER: |
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vwfocus.horiz = 2.*180./PI*atan( |
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hsiz * tan(PI/180./2.*odev.v.horiz) ); |
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vwfocus.vert = 2.*180./PI*atan( |
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vsiz * tan(PI/180./2.*odev.v.vert) ); |
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break; |
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case VT_PAR: |
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case VT_ANG: |
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vwfocus.horiz = hsiz * odev.v.horiz; |
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vwfocus.vert = vsiz * odev.v.vert; |
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break; |
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case VT_HEM: |
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vwfocus.horiz = 2.*180./PI*asin( |
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hsiz * sin(PI/180./2.*odev.v.horiz) ); |
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vwfocus.vert = 2.*180./PI*asin( |
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vsiz * sin(PI/180./2.*odev.v.vert) ); |
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break; |
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case VT_CYL: |
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vwfocus.horiz = hsiz * odev.v.horiz; |
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vwfocus.vert = 2.*180./PI*atan( |
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vsiz * tan(PI/180./2.*odev.v.vert) ); |
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break; |
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default: |
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error(INTERNAL, "bad view type in set_focus"); |
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} |
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vwfocus.hoff = (odev.v.hoff + hcent - 0.5)/hsiz; |
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vwfocus.voff = (odev.v.voff + vcent - 0.5)/vsiz; |
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setview(&vwfocus); |
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beam_view(&vwfocus, (int)(3*odev.hres*hsiz)+100, |
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(int)(3*odev.vres*vsiz)+100); |
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beam_sync(0); /* update server */ |
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} |
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|
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|
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int |
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usr_input() /* get user input and process it */ |
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{ |
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case DC_LASTVIEW: /* restore previous view */ |
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new_view(NULL); |
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break; |
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case DC_FOCUS: /* set focus frame */ |
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set_focus(args); |
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break; |
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case DC_PAUSE: /* pause the current calculation */ |
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case DC_RESUME: /* resume the calculation */ |
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/* handled in main() */ |
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disp_bundle((PACKHEAD *)buf); |
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break; |
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case DS_ADDHOLO: |
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if (msg.nbytes != sizeof(HDGRID)) |
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if (msg.nbytes < sizeof(HDGRID)+2) |
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error(INTERNAL, "bad holodeck record from server"); |
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add_holo((HDGRID *)buf); |
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add_holo((HDGRID *)buf, buf+sizeof(HDGRID), |
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buf+sizeof(HDGRID)+strlen(buf+sizeof(HDGRID))+1); |
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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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if (!(imm_mode = msg.type==DS_STARTIMM)) |
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dev_flush(); |
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#ifdef DEBUG |
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{ |
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time_t tnow = time(NULL); |
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tmodesw = tnow; |
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} |
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#endif |
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if (!(imm_mode = msg.type==DS_STARTIMM)) |
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dev_flush(); |
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goto noargs; |
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case DS_ACKNOW: |
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case DS_SHUTDOWN: |
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MSGHEAD msg; |
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int m; |
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/* consistency checks */ |
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#ifdef DEBUG |
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if (nbytes < 0 || nbytes > 0 & p == NULL) |
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error(CONSISTENCY, "bad buffer handed to serv_request"); |
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#endif |
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DCHECK(nbytes < 0 || nbytes > 0 & p == NULL, |
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CONSISTENCY, "bad buffer handed to serv_request"); |
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/* get server's attention for big request */ |
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if (nbytes >= BIGREQSIZ-sizeof(MSGHEAD)) { |
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serv_request(DR_ATTEN, 0, NULL); |
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quit(code) /* clean up and exit */ |
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int code; |
586 |
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{ |
587 |
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if (code) |
588 |
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exit(code); |
589 |
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if (odev.v.type) |
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dev_close(); |
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exit(code); |
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exit(0); |
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} |