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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"; |
12 |
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#include "rhdisp.h" |
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#include "rhdriver.h" |
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#include "selcall.h" |
15 |
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#include <ctype.h> |
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|
17 |
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#ifndef VIEWHISTLEN |
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#define VIEWHISTLEN 4 /* number of remembered views */ |
19 |
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#endif |
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|
21 |
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HOLO *hdlist[HDMAX+1]; /* global holodeck 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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|
27 |
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VIEW dvw; /* our current display view */ |
27 |
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int do_outside = 0; /* render from outside sections */ |
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|
29 |
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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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|
33 |
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#define SERV_READY 01 |
25 |
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#define DEV_READY 02 |
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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; |
39 |
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static time_t timm, tadd; |
40 |
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static long nimmrays, naddrays; |
41 |
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#endif |
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|
43 |
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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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|
47 |
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|
48 |
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
52 |
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extern int eputs(); |
53 |
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int rdy, inp, res = 0, pause = 0; |
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|
55 |
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progname = argv[0]; |
56 |
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if (argc != 2) |
56 |
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if (argc < 3) |
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error(USER, "bad command line arguments"); |
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/* open our device */ |
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dev_open(argv[1]); |
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/* open server process i/o */ |
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sstdout = fdopen(atoi(argv[2]), "w"); |
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if (argc < 4 || (inp = atoi(argv[3])) < 0) |
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sstdin = NULL; |
64 |
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else |
65 |
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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 |
69 |
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tmodesw = time(NULL); |
70 |
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#endif |
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/* enter main loop */ |
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do { |
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rdy = disp_wait(); |
74 |
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if (rdy & DEV_READY) { /* get user input */ |
43 |
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inp = dev_input(); |
44 |
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if (inp & DEV_NEWVIEW) |
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new_view(&odev.v); |
46 |
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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_WAIT) |
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pause = 1; |
50 |
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if (inp & DEV_RESUME) { |
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serv_request(DR_NOOP, 0, NULL); |
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pause = 0; |
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} |
54 |
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} |
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if (rdy & SERV_READY) { /* get server result */ |
74 |
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if (rdy & RDY_SRV) { /* process server result */ |
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res = serv_result(); |
76 |
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if (pause && res != DS_SHUTDOWN) { |
77 |
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serv_request(DR_ATTEN, 0, NULL); |
80 |
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; |
81 |
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} |
82 |
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} |
83 |
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if (rdy & RDY_DEV) { /* user input from driver */ |
84 |
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inp = dev_input(); |
85 |
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if (inp & DFL(DC_SETVIEW)) |
86 |
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new_view(&odev.v); |
87 |
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if (inp & DFL(DC_GETVIEW)) |
88 |
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printview(); |
89 |
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if (inp & DFL(DC_LASTVIEW)) |
90 |
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new_view(NULL); |
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if (inp & DFL(DC_RESUME)) { |
92 |
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serv_request(DR_NOOP, 0, NULL); |
93 |
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pause = 0; |
94 |
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} |
95 |
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if (inp & DFL(DC_PAUSE)) |
96 |
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pause = 1; |
97 |
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if (inp & DFL(DC_REDRAW)) |
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imm_mode = beam_sync(1) > 0; |
99 |
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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; |
102 |
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} |
103 |
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if (inp & DFL(DC_CLOBBER)) |
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serv_request(DR_CLOBBER, 0, NULL); |
105 |
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if (inp & DFL(DC_RESTART)) { |
106 |
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serv_request(DR_RESTART, 0, NULL); |
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pause = 0; |
108 |
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} |
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if (inp & DFL(DC_QUIT)) |
110 |
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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 */ |
113 |
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switch (usr_input()) { |
114 |
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case DC_PAUSE: |
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pause = 1; |
116 |
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break; |
117 |
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case DC_RESUME: |
118 |
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serv_request(DR_NOOP, 0, NULL); |
119 |
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/* fall through */ |
120 |
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case DC_KILL: |
121 |
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case DC_RESTART: |
122 |
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pause = 0; |
123 |
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break; |
124 |
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} |
125 |
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} while (res != DS_SHUTDOWN); |
126 |
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#ifdef DEBUG |
127 |
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if (timm && nimmrays) |
128 |
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fprintf(stderr, |
129 |
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"%s: %.1f rays recalled/second (%ld rays total)\n", |
130 |
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progname, (double)nimmrays/timm, nimmrays); |
131 |
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if (tadd && naddrays) |
132 |
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fprintf(stderr, |
133 |
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"%s: %.1f rays calculated/second (%ld rays total)\n", |
134 |
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progname, (double)naddrays/tadd, naddrays); |
135 |
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#endif |
136 |
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/* all done */ |
137 |
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quit(0); |
138 |
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} |
147 |
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register int i; |
148 |
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/* see if we can avoid select call */ |
149 |
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if (imm_mode || stdin->_cnt > 0) |
150 |
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return(SERV_READY); |
150 |
> |
return(RDY_SRV); |
151 |
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if (sstdin != NULL && sstdin->_cnt > 0) |
152 |
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return(RDY_SIN); |
153 |
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if (dev_flush()) |
154 |
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return(DEV_READY); |
154 |
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return(RDY_DEV); |
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/* make the call */ |
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FD_ZERO(&readset); FD_ZERO(&errset); |
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FD_SET(0, &readset); |
158 |
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FD_SET(0, &errset); |
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FD_SET(odev.ifd, &readset); |
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FD_SET(odev.ifd, &errset); |
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n = odev.ifd + 1; |
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n = odev.ifd+1; |
162 |
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if (sstdin != NULL) { |
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FD_SET(fileno(sstdin), &readset); |
164 |
> |
FD_SET(fileno(sstdin), &errset); |
165 |
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if (fileno(sstdin) >= n) |
166 |
> |
n = fileno(sstdin) + 1; |
167 |
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} |
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n = select(n, &readset, NULL, &errset, NULL); |
169 |
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if (n < 0) { |
170 |
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if (errno == EINTR) |
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} |
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flgs = 0; /* flag what's ready */ |
175 |
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if (FD_ISSET(0, &readset) || FD_ISSET(0, &errset)) |
176 |
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flgs |= SERV_READY; |
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flgs |= RDY_SRV; |
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if (FD_ISSET(odev.ifd, &readset) || FD_ISSET(odev.ifd, &errset)) |
178 |
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flgs |= DEV_READY; |
178 |
> |
flgs |= RDY_DEV; |
179 |
> |
if (sstdin != NULL && (FD_ISSET(fileno(sstdin), &readset) || |
180 |
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FD_ISSET(fileno(sstdin), &errset))) |
181 |
> |
flgs |= RDY_SIN; |
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return(flgs); |
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} |
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|
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HDGRID *hdg; |
188 |
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{ |
189 |
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VIEW nv; |
190 |
+ |
double d; |
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register int hd; |
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|
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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]); |
210 |
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VCOPY(nv.vup, hdlist[0]->xv[2]); |
211 |
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if (do_outside) { |
212 |
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normalize(nv.vdir); |
213 |
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d = VLEN(hdlist[0]->xv[1]); |
214 |
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d += VLEN(hdlist[0]->xv[2]); |
215 |
+ |
VSUM(nv.vp, nv.vp, nv.vdir, -d); |
216 |
+ |
} |
217 |
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new_view(&nv); |
218 |
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} |
219 |
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|
234 |
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for (i = p->nr; i--; ) { |
235 |
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hdray(ro, rd, hdlist[p->hd], gc, packra(p)[i].r); |
236 |
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d = hddepth(hdlist[p->hd], packra(p)[i].d); |
237 |
< |
VSUM(wp, ro, rd, d); /* might be behind viewpoint */ |
238 |
< |
dev_value(packra(p)[i].v, wp); |
237 |
> |
if (d < .99*FHUGE) { |
238 |
> |
VSUM(wp, ro, rd, d); /* might be behind viewpoint */ |
239 |
> |
dev_value(packra(p)[i].v, rd, wp); |
240 |
> |
} else |
241 |
> |
dev_value(packra(p)[i].v, rd, NULL); |
242 |
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} |
243 |
+ |
#ifdef DEBUG |
244 |
+ |
if (imm_mode) nimmrays += p->nr; |
245 |
+ |
else naddrays += p->nr; |
246 |
+ |
#endif |
247 |
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} |
248 |
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|
249 |
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|
250 |
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new_view(v) /* change view parameters */ |
251 |
< |
VIEW *v; |
251 |
> |
register VIEW *v; |
252 |
|
{ |
253 |
+ |
static VIEW viewhist[VIEWHISTLEN]; |
254 |
+ |
static unsigned nhist; |
255 |
+ |
VIEW *dv; |
256 |
+ |
int i, res[2]; |
257 |
|
char *err; |
258 |
+ |
/* restore previous view? */ |
259 |
+ |
if (v == NULL) { |
260 |
+ |
if (nhist > 1) /* get one before last setting */ |
261 |
+ |
nhist--; |
262 |
+ |
else /* else go to end of list */ |
263 |
+ |
while (nhist < VIEWHISTLEN && viewhist[nhist].type) |
264 |
+ |
nhist++; |
265 |
+ |
v = viewhist + ((nhist-1)%VIEWHISTLEN); |
266 |
+ |
} else |
267 |
+ |
again: |
268 |
+ |
if ((err = setview(v)) != NULL) { |
269 |
+ |
error(COMMAND, err); |
270 |
+ |
return; |
271 |
+ |
} |
272 |
+ |
if (v->type == VT_PAR) { |
273 |
+ |
error(COMMAND, "cannot handle parallel views"); |
274 |
+ |
return; |
275 |
+ |
} |
276 |
+ |
if (!dev_view(v)) /* notify display driver */ |
277 |
+ |
goto again; |
278 |
+ |
dev_flush(); /* update screen */ |
279 |
+ |
beam_init(0); /* compute new beam set */ |
280 |
+ |
for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) |
281 |
+ |
if (!beam_view(dv, res[0], res[1])) { |
282 |
+ |
if (!nhist) { |
283 |
+ |
error(COMMAND, "invalid starting view"); |
284 |
+ |
return; |
285 |
+ |
} |
286 |
+ |
copystruct(v, viewhist + ((nhist-1)%VIEWHISTLEN)); |
287 |
+ |
goto again; |
288 |
+ |
} |
289 |
+ |
beam_sync(0); /* update server */ |
290 |
+ |
/* record new view */ |
291 |
+ |
if (v < viewhist || v >= viewhist+VIEWHISTLEN) { |
292 |
+ |
copystruct(viewhist + (nhist%VIEWHISTLEN), v); |
293 |
+ |
nhist++; |
294 |
+ |
} |
295 |
+ |
} |
296 |
|
|
297 |
< |
if ((err = setview(v)) != NULL) |
298 |
< |
error(INTERNAL, err); |
299 |
< |
dev_view(v); /* update display driver */ |
300 |
< |
beam_view(&dvw, v); /* update beam list */ |
301 |
< |
copystruct(&dvw, v); /* record new view */ |
297 |
> |
|
298 |
> |
int |
299 |
> |
usr_input() /* get user input and process it */ |
300 |
> |
{ |
301 |
> |
VIEW vparams; |
302 |
> |
char cmd[256]; |
303 |
> |
register char *args; |
304 |
> |
register int i; |
305 |
> |
|
306 |
> |
if (fgets(cmd, sizeof(cmd), sstdin) == NULL) { |
307 |
> |
fclose(sstdin); |
308 |
> |
sstdin = NULL; |
309 |
> |
return(-1); |
310 |
> |
} |
311 |
> |
if (!*cmd) |
312 |
> |
return(DC_RESUME); |
313 |
> |
for (args = cmd; *args && !isspace(*args); args++) |
314 |
> |
; |
315 |
> |
while (isspace(*args)) |
316 |
> |
*args++ = '\0'; |
317 |
> |
if (*args && args[i=strlen(args)-1] == '\n') |
318 |
> |
args[i] = '\0'; |
319 |
> |
for (i = 0; i < DC_NCMDS; i++) |
320 |
> |
if (!strcmp(cmd, cmdlist[i])) |
321 |
> |
break; |
322 |
> |
if (i >= DC_NCMDS) { |
323 |
> |
dev_auxcom(cmd, args); |
324 |
> |
return(-1); |
325 |
> |
} |
326 |
> |
switch (i) { |
327 |
> |
case DC_SETVIEW: /* set the view */ |
328 |
> |
copystruct(&vparams, &odev.v); |
329 |
> |
if (!sscanview(&vparams, args)) |
330 |
> |
error(COMMAND, "missing view options"); |
331 |
> |
else |
332 |
> |
new_view(&vparams); |
333 |
> |
break; |
334 |
> |
case DC_GETVIEW: /* print the current view */ |
335 |
> |
printview(); |
336 |
> |
break; |
337 |
> |
case DC_LASTVIEW: /* restore previous view */ |
338 |
> |
new_view(NULL); |
339 |
> |
break; |
340 |
> |
case DC_PAUSE: /* pause the current calculation */ |
341 |
> |
case DC_RESUME: /* resume the calculation */ |
342 |
> |
/* handled in main() */ |
343 |
> |
break; |
344 |
> |
case DC_REDRAW: /* redraw from server */ |
345 |
> |
imm_mode = beam_sync(1) > 0; |
346 |
> |
dev_clear(); |
347 |
> |
break; |
348 |
> |
case DC_KILL: /* kill rtrace process(es) */ |
349 |
> |
serv_request(DR_KILL, 0, NULL); |
350 |
> |
break; |
351 |
> |
case DC_CLOBBER: /* clobber holodeck */ |
352 |
> |
serv_request(DR_CLOBBER, 0, NULL); |
353 |
> |
break; |
354 |
> |
case DC_RESTART: /* restart rtrace */ |
355 |
> |
serv_request(DR_RESTART, 0, NULL); |
356 |
> |
break; |
357 |
> |
case DC_QUIT: /* quit request */ |
358 |
> |
serv_request(DR_SHUTDOWN, 0, NULL); |
359 |
> |
break; |
360 |
> |
default: |
361 |
> |
error(CONSISTENCY, "bad command id in usr_input"); |
362 |
> |
} |
363 |
> |
return(i); |
364 |
|
} |
365 |
|
|
366 |
|
|
367 |
+ |
printview() /* print our current view to server stdout */ |
368 |
+ |
{ |
369 |
+ |
fputs(VIEWSTR, sstdout); |
370 |
+ |
fprintview(&odev.v, sstdout); |
371 |
+ |
fputc('\n', sstdout); |
372 |
+ |
fflush(sstdout); |
373 |
+ |
} |
374 |
+ |
|
375 |
+ |
|
376 |
|
int |
377 |
|
serv_result() /* get next server result and process it */ |
378 |
|
{ |
407 |
|
error(INTERNAL, "bad holodeck record from server"); |
408 |
|
add_holo((HDGRID *)buf); |
409 |
|
break; |
410 |
+ |
case DS_OUTSECT: |
411 |
+ |
do_outside = 1; |
412 |
+ |
goto noargs; |
413 |
+ |
case DS_EYESEP: |
414 |
+ |
if (msg.nbytes <= 1 || (eyesepdist = atof(buf)) <= FTINY) |
415 |
+ |
error(INTERNAL, "bad eye separation from server"); |
416 |
+ |
break; |
417 |
|
case DS_STARTIMM: |
418 |
|
case DS_ENDIMM: |
419 |
+ |
#ifdef DEBUG |
420 |
+ |
if (imm_mode != (msg.type==DS_STARTIMM)) { |
421 |
+ |
time_t tnow = time(NULL); |
422 |
+ |
if (imm_mode) timm += tnow - tmodesw; |
423 |
+ |
else tadd += tnow - tmodesw; |
424 |
+ |
tmodesw = tnow; |
425 |
+ |
} |
426 |
+ |
#endif |
427 |
|
imm_mode = msg.type==DS_STARTIMM; |
428 |
< |
/* fall through */ |
428 |
> |
goto noargs; |
429 |
|
case DS_ACKNOW: |
430 |
|
case DS_SHUTDOWN: |
431 |
< |
if (msg.nbytes) { |
208 |
< |
sprintf(errmsg, |
209 |
< |
"unexpected body with server message %d", |
210 |
< |
msg.type); |
211 |
< |
error(INTERNAL, errmsg); |
212 |
< |
} |
213 |
< |
break; |
431 |
> |
goto noargs; |
432 |
|
default: |
433 |
|
error(INTERNAL, "unrecognized result from server process"); |
434 |
|
} |
435 |
|
return(msg.type); /* return message type */ |
436 |
+ |
noargs: |
437 |
+ |
if (msg.nbytes) { |
438 |
+ |
sprintf(errmsg, "unexpected body with server message %d", |
439 |
+ |
msg.type); |
440 |
+ |
error(INTERNAL, errmsg); |
441 |
+ |
} |
442 |
+ |
return(msg.type); |
443 |
|
readerr: |
444 |
|
if (feof(stdin)) |
445 |
|
error(SYSTEM, "server process died"); |