| 12 |
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#include "rhdisp.h" |
| 13 |
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#include "rhdriver.h" |
| 14 |
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#include "selcall.h" |
| 15 |
+ |
#include <ctype.h> |
| 16 |
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|
| 17 |
+ |
#ifndef VIEWHISTLEN |
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#define VIEWHISTLEN 4 /* number of remembered views */ |
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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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|
| 25 |
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int imm_mode = 0; /* bundles are being delivered immediately */ |
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|
| 20 |
– |
VIEW dvw; /* our current display view */ |
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– |
|
| 27 |
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char *progname; /* global argv[0] */ |
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|
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< |
#define RDY_SRV 01 |
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< |
#define RDY_DEV 02 |
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> |
FILE *sstdin, *sstdout; /* server's standard input and output */ |
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|
| 31 |
+ |
#define RDY_SRV 01 |
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#define RDY_DEV 02 |
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#define RDY_SIN 04 |
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|
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|
| 36 |
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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extern int eputs(); |
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int rdy, inp, res = 0, pause = 0; |
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|
| 43 |
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progname = argv[0]; |
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if (argc != 2) |
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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; |
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else |
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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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/* enter main loop */ |
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do { |
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rdy = disp_wait(); |
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if (rdy & RDY_DEV) { /* get user input */ |
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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_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_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 = 1; /* preempt updates */ |
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beam_sync(); |
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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_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 & DEV_WAIT) |
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if (inp & DFL(DC_PAUSE)) |
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pause = 1; |
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if (inp & DEV_RESUME) { |
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serv_request(DR_NOOP, 0, NULL); |
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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_SRV) { /* get server result */ |
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if (rdy & RDY_SIN) /* user input from sstdin */ |
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switch (usr_input()) { |
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case DC_PAUSE: |
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pause = 1; |
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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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/* see if we can avoid select call */ |
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if (imm_mode || stdin->_cnt > 0) |
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return(RDY_SRV); |
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if (sstdin != NULL && sstdin->_cnt > 0) |
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return(RDY_SIN); |
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if (dev_flush()) |
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return(RDY_DEV); |
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/* make the call */ |
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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; |
| 136 |
> |
n = odev.ifd+1; |
| 137 |
> |
if (sstdin != NULL) { |
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> |
FD_SET(fileno(sstdin), &readset); |
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> |
if (fileno(sstdin) >= n) |
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> |
n = fileno(sstdin) + 1; |
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} |
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n = select(n, &readset, NULL, &errset, NULL); |
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if (n < 0) { |
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if (errno == EINTR) |
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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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flgs |= RDY_SIN; |
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return(flgs); |
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} |
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|
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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); |
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> |
dev_value(packra(p)[i].v, wp, rd); |
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} |
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} |
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|
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|
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new_view(v) /* change view parameters */ |
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< |
VIEW *v; |
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> |
register VIEW *v; |
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|
{ |
| 212 |
+ |
static VIEW viewhist[VIEWHISTLEN]; |
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+ |
static unsigned nhist; |
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|
char *err; |
| 215 |
+ |
/* restore previous view? */ |
| 216 |
+ |
if (v == NULL) { |
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+ |
if (nhist > 1) /* get one before last setting */ |
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+ |
nhist--; |
| 219 |
+ |
else /* else go to end of list */ |
| 220 |
+ |
while (nhist < VIEWHISTLEN && viewhist[nhist].type) |
| 221 |
+ |
nhist++; |
| 222 |
+ |
v = viewhist + ((nhist-1)%VIEWHISTLEN); |
| 223 |
+ |
} else if ((err = setview(v)) != NULL) { |
| 224 |
+ |
error(COMMAND, err); |
| 225 |
+ |
return; |
| 226 |
+ |
} |
| 227 |
+ |
again: |
| 228 |
+ |
if (v->type == VT_PAR) { |
| 229 |
+ |
error(COMMAND, "cannot handle parallel views"); |
| 230 |
+ |
return; |
| 231 |
+ |
} |
| 232 |
+ |
if (!dev_view(v)) /* update display driver */ |
| 233 |
+ |
goto again; |
| 234 |
+ |
dev_flush(); /* update screen */ |
| 235 |
+ |
if (!beam_view(v)) /* update beam list */ |
| 236 |
+ |
goto again; |
| 237 |
+ |
/* record new view */ |
| 238 |
+ |
if (v < viewhist || v >= viewhist+VIEWHISTLEN) { |
| 239 |
+ |
copystruct(viewhist + (nhist%VIEWHISTLEN), v); |
| 240 |
+ |
nhist++; |
| 241 |
+ |
} |
| 242 |
+ |
} |
| 243 |
|
|
| 244 |
< |
if ((err = setview(v)) != NULL) |
| 245 |
< |
error(INTERNAL, err); |
| 246 |
< |
dev_view(v); /* update display driver */ |
| 247 |
< |
beam_view(&dvw, v); /* update beam list */ |
| 248 |
< |
copystruct(&dvw, v); /* record new view */ |
| 244 |
> |
|
| 245 |
> |
int |
| 246 |
> |
usr_input() /* get user input and process it */ |
| 247 |
> |
{ |
| 248 |
> |
VIEW vparams; |
| 249 |
> |
char cmd[128]; |
| 250 |
> |
register char *args; |
| 251 |
> |
register int i; |
| 252 |
> |
|
| 253 |
> |
if (fgets(cmd, sizeof(cmd), sstdin) == NULL) |
| 254 |
> |
return(DC_QUIT); |
| 255 |
> |
for (args = cmd; *args && !isspace(*args); args++) |
| 256 |
> |
; |
| 257 |
> |
while (isspace(*args)) |
| 258 |
> |
*args++ = '\0'; |
| 259 |
> |
if (!*cmd) |
| 260 |
> |
return(DC_RESUME); |
| 261 |
> |
if (*args && args[i=strlen(args)-1] == '\n') |
| 262 |
> |
args[i] = '\0'; |
| 263 |
> |
for (i = 0; i < DC_NCMDS; i++) |
| 264 |
> |
if (!strcmp(cmd, cmdlist[i])) |
| 265 |
> |
break; |
| 266 |
> |
if (i >= DC_NCMDS) { |
| 267 |
> |
sprintf(errmsg, "unknown command: %s", cmd); |
| 268 |
> |
error(COMMAND, errmsg); |
| 269 |
> |
return(-1); |
| 270 |
> |
} |
| 271 |
> |
switch (i) { |
| 272 |
> |
case DC_SETVIEW: /* set the view */ |
| 273 |
> |
copystruct(&vparams, &odev.v); |
| 274 |
> |
if (!sscanview(&vparams, args)) |
| 275 |
> |
error(COMMAND, "missing view options"); |
| 276 |
> |
else |
| 277 |
> |
new_view(&vparams); |
| 278 |
> |
break; |
| 279 |
> |
case DC_GETVIEW: /* print the current view */ |
| 280 |
> |
printview(); |
| 281 |
> |
break; |
| 282 |
> |
case DC_LASTVIEW: /* restore previous view */ |
| 283 |
> |
new_view(NULL); |
| 284 |
> |
break; |
| 285 |
> |
case DC_PAUSE: /* pause the current calculation */ |
| 286 |
> |
case DC_RESUME: /* resume the calculation */ |
| 287 |
> |
/* handled in main() */ |
| 288 |
> |
break; |
| 289 |
> |
case DC_REDRAW: /* redraw from server */ |
| 290 |
> |
imm_mode = beam_sync() > 0; |
| 291 |
> |
break; |
| 292 |
> |
case DC_KILL: /* kill rtrace process(es) */ |
| 293 |
> |
serv_request(DR_KILL, 0, NULL); |
| 294 |
> |
break; |
| 295 |
> |
case DC_CLOBBER: /* clobber holodeck */ |
| 296 |
> |
serv_request(DR_CLOBBER, 0, NULL); |
| 297 |
> |
break; |
| 298 |
> |
case DC_RESTART: /* restart rtrace */ |
| 299 |
> |
serv_request(DR_RESTART, 0, NULL); |
| 300 |
> |
break; |
| 301 |
> |
case DC_QUIT: /* quit request */ |
| 302 |
> |
serv_request(DR_SHUTDOWN, 0, NULL); |
| 303 |
> |
break; |
| 304 |
> |
default: |
| 305 |
> |
error(CONSISTENCY, "bad command id in usr_input"); |
| 306 |
> |
} |
| 307 |
> |
return(i); |
| 308 |
|
} |
| 309 |
|
|
| 310 |
|
|
| 311 |
+ |
printview() /* print our current view to server stdout */ |
| 312 |
+ |
{ |
| 313 |
+ |
fputs(VIEWSTR, sstdout); |
| 314 |
+ |
fprintview(&odev.v, sstdout); |
| 315 |
+ |
fputc('\n', sstdout); |
| 316 |
+ |
fflush(sstdout); |
| 317 |
+ |
} |
| 318 |
+ |
|
| 319 |
+ |
|
| 320 |
|
int |
| 321 |
|
serv_result() /* get next server result and process it */ |
| 322 |
|
{ |
| 354 |
|
case DS_STARTIMM: |
| 355 |
|
case DS_ENDIMM: |
| 356 |
|
imm_mode = msg.type==DS_STARTIMM; |
| 357 |
+ |
if (msg.type == DS_ENDIMM) |
| 358 |
+ |
dev_flush(); /* update display NOW */ |
| 359 |
|
/* fall through */ |
| 360 |
|
case DS_ACKNOW: |
| 361 |
|
case DS_SHUTDOWN: |
