| 18 |
|
|
| 19 |
|
#include "x11icon.h" |
| 20 |
|
|
| 21 |
+ |
#ifndef FEQ |
| 22 |
+ |
#define FEQ(a,b) ((a)-(b) <= FTINY && (a)-(b) >= -FTINY) |
| 23 |
+ |
#endif |
| 24 |
+ |
|
| 25 |
|
#define CTRL(c) ((c)-'@') |
| 26 |
|
|
| 27 |
|
#define GAMMA 2.2 /* default gamma correction */ |
| 53 |
|
static unsigned long ourblack=0, ourwhite=1; |
| 54 |
|
|
| 55 |
|
static Display *ourdisplay = NULL; /* our display */ |
| 52 |
– |
|
| 56 |
|
static XVisualInfo ourvinfo; /* our visual information */ |
| 54 |
– |
|
| 57 |
|
static Window gwind = 0; /* our graphics window */ |
| 56 |
– |
|
| 58 |
|
static GC ourgc = 0; /* our graphics context for drawing */ |
| 58 |
– |
|
| 59 |
|
static Colormap ourmap = 0; /* our color map */ |
| 60 |
|
|
| 61 |
|
static double pwidth, pheight; /* pixel dimensions (mm) */ |
| 99 |
|
XWMHints ourxwmhints; |
| 100 |
|
XSizeHints oursizhints; |
| 101 |
|
/* set quadtree globals */ |
| 102 |
< |
qtDepthEps = 0.02; |
| 103 |
< |
qtMinNodesiz = 1; |
| 102 |
> |
qtMinNodesiz = 2; |
| 103 |
|
/* open display server */ |
| 104 |
|
ourdisplay = XOpenDisplay(NULL); |
| 105 |
|
if (ourdisplay == NULL) |
| 201 |
|
dev_view(nv) /* assign new driver view */ |
| 202 |
|
VIEW *nv; |
| 203 |
|
{ |
| 204 |
< |
if (nv != &odev.v) |
| 204 |
> |
if (nv != &odev.v) { |
| 205 |
> |
if (!FEQ(nv->horiz,odev.v.horiz) || /* resize window? */ |
| 206 |
> |
!FEQ(nv->vert,odev.v.vert)) { |
| 207 |
> |
odev.hres = 2.*VIEWDIST*tan(PI/180./2.*nv->horiz) / |
| 208 |
> |
pwidth; |
| 209 |
> |
odev.vres = 2.*VIEWDIST*tan(PI/180./2.*nv->vert) / |
| 210 |
> |
pheight; |
| 211 |
> |
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
| 212 |
> |
} |
| 213 |
|
copystruct(&odev.v, nv); |
| 214 |
+ |
} |
| 215 |
|
qtReplant(); |
| 216 |
|
} |
| 217 |
|
|
| 220 |
|
dev_input() /* get X11 input */ |
| 221 |
|
{ |
| 222 |
|
inpresflags = 0; |
| 223 |
+ |
|
| 224 |
|
do |
| 225 |
|
getevent(); |
| 226 |
|
|
| 388 |
|
|
| 389 |
|
|
| 390 |
|
static |
| 391 |
+ |
ilclip(dp, wp) /* clip world coordinates to device */ |
| 392 |
+ |
int dp[2][2]; |
| 393 |
+ |
FVECT wp[2]; |
| 394 |
+ |
{ |
| 395 |
+ |
static FVECT vmin = {0.,0.,0.}, vmax = {1.,1.,FHUGE}; |
| 396 |
+ |
FVECT ip[2]; |
| 397 |
+ |
/* not exactly right, but who cares? */ |
| 398 |
+ |
viewloc(ip[0], &odev.v, wp[0]); |
| 399 |
+ |
viewloc(ip[1], &odev.v, wp[1]); |
| 400 |
+ |
if (!clip(ip[0], ip[1], vmin, vmax)) |
| 401 |
+ |
return(0); |
| 402 |
+ |
dp[0][0] = ip[0][0]*odev.hres; |
| 403 |
+ |
dp[0][1] = ip[0][1]*odev.vres; |
| 404 |
+ |
dp[1][0] = ip[1][0]*odev.hres; |
| 405 |
+ |
dp[1][1] = ip[1][1]*odev.vres; |
| 406 |
+ |
return(1); |
| 407 |
+ |
} |
| 408 |
+ |
|
| 409 |
+ |
|
| 410 |
+ |
static |
| 411 |
+ |
draw3dline(wp) /* draw 3d line in world coordinates */ |
| 412 |
+ |
FVECT wp[2]; |
| 413 |
+ |
{ |
| 414 |
+ |
int dp[2][2]; |
| 415 |
+ |
|
| 416 |
+ |
if (!ilclip(dp, wp)) |
| 417 |
+ |
return; |
| 418 |
+ |
XDrawLine(ourdisplay, gwind, ourgc, |
| 419 |
+ |
dp[0][0], odev.vres-1 - dp[0][1], |
| 420 |
+ |
dp[1][0], odev.vres-1 - dp[1][1]); |
| 421 |
+ |
} |
| 422 |
+ |
|
| 423 |
+ |
|
| 424 |
+ |
static |
| 425 |
+ |
draw_grids() /* draw holodeck section grids */ |
| 426 |
+ |
{ |
| 427 |
+ |
static BYTE gridrgb[3] = {0x0, 0xff, 0xff}; |
| 428 |
+ |
unsigned long pixel; |
| 429 |
+ |
|
| 430 |
+ |
if (!mapped || odev.v.type != VT_PER) |
| 431 |
+ |
return; |
| 432 |
+ |
if (ncolors > 0) |
| 433 |
+ |
pixel = pixval[get_pixel(gridrgb, xnewcolr)]; |
| 434 |
+ |
else |
| 435 |
+ |
pixel = true_pixel(gridrgb); |
| 436 |
+ |
XSetForeground(ourdisplay, ourgc, pixel); |
| 437 |
+ |
/* draw each grid line */ |
| 438 |
+ |
gridlines(draw3dline); |
| 439 |
+ |
} |
| 440 |
+ |
|
| 441 |
+ |
|
| 442 |
+ |
static |
| 443 |
|
moveview(dx, dy, move) /* move our view */ |
| 444 |
|
int dx, dy, move; |
| 445 |
|
{ |
| 446 |
|
VIEW nv; |
| 447 |
|
double d; |
| 448 |
< |
register int i; |
| 448 |
> |
register int i, li; |
| 449 |
|
/* start with old view */ |
| 450 |
|
copystruct(&nv, &odev.v); |
| 451 |
|
/* change view direction */ |
| 452 |
|
if (move) { |
| 453 |
< |
register RLEAF *lp; |
| 393 |
< |
if ((lp = qtFindLeaf(dx, dy)) == NULL) |
| 453 |
> |
if ((li = qtFindLeaf(dx, dy)) < 0) |
| 454 |
|
return(0); /* not on window */ |
| 455 |
|
for (i = 0; i < 3; i++) |
| 456 |
< |
nv.vdir[i] = lp->wp[i] - nv.vp[i]; |
| 456 |
> |
nv.vdir[i] = qtL.wp[li][i] - nv.vp[i]; |
| 457 |
|
} else { |
| 458 |
|
if (viewray(nv.vp, nv.vdir, &odev.v, |
| 459 |
|
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
| 492 |
|
unsigned int statemask; |
| 493 |
|
|
| 494 |
|
qtMinNodesiz = 16; /* for quicker update */ |
| 495 |
+ |
XNoOp(ourdisplay); |
| 496 |
|
|
| 497 |
< |
do { |
| 497 |
> |
while (!XCheckMaskEvent(ourdisplay, |
| 498 |
> |
ButtonReleaseMask, levptr(XEvent))) { |
| 499 |
> |
|
| 500 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
| 501 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
| 502 |
|
break; /* on another screen */ |
| 503 |
|
|
| 504 |
< |
if (!moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton))) |
| 504 |
> |
if (!moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton))) { |
| 505 |
|
sleep(1); |
| 506 |
< |
|
| 507 |
< |
} while (!XCheckMaskEvent(ourdisplay, |
| 508 |
< |
ButtonReleaseMask, levptr(XEvent))); |
| 509 |
< |
|
| 506 |
> |
continue; |
| 507 |
> |
} |
| 508 |
> |
XClearWindow(ourdisplay, gwind); |
| 509 |
> |
qtUpdate(); |
| 510 |
> |
draw_grids(); |
| 511 |
> |
} |
| 512 |
|
if (!(inpresflags & DEV_NEWVIEW)) { /* do final motion */ |
| 513 |
|
whichbutton = levptr(XButtonReleasedEvent)->button; |
| 514 |
|
wx = levptr(XButtonReleasedEvent)->x; |
| 515 |
|
wy = levptr(XButtonReleasedEvent)->y; |
| 516 |
|
moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton)); |
| 517 |
|
} |
| 518 |
+ |
dev_flush(); |
| 519 |
|
|
| 520 |
|
qtMinNodesiz = oldnodesiz; /* restore quadtree resolution */ |
| 521 |
|
} |
| 538 |
|
case 'H': /* turn off height motion lock */ |
| 539 |
|
headlocked = 0; |
| 540 |
|
return; |
| 541 |
< |
case CTRL('Z'): |
| 541 |
> |
case CTRL('S'): |
| 542 |
|
case 'p': /* pause computation */ |
| 543 |
|
inpresflags |= DEV_WAIT; |
| 544 |
|
return; |
| 545 |
+ |
case 'v': /* spit out view */ |
| 546 |
+ |
inpresflags |= DEV_PUTVIEW; |
| 547 |
+ |
return; |
| 548 |
+ |
case CTRL('Q'): |
| 549 |
|
case '\n': |
| 550 |
< |
case '\r': /* release */ |
| 550 |
> |
case '\r': /* resume computation */ |
| 551 |
> |
inpresflags |= DEV_RESUME; |
| 552 |
|
return; |
| 553 |
< |
case CTRL('R'): /* redraw */ |
| 553 |
> |
case CTRL('R'): /* redraw screen */ |
| 554 |
|
if (ncolors > 0) |
| 555 |
|
new_ctab(ncolors); |
| 556 |
|
qtRedraw(0, 0, odev.hres, odev.vres); |
| 557 |
|
return; |
| 558 |
+ |
case CTRL('L'): /* refresh from server */ |
| 559 |
+ |
if (inpresflags & DEV_REDRAW) |
| 560 |
+ |
return; |
| 561 |
+ |
XClearWindow(ourdisplay, gwind); |
| 562 |
+ |
draw_grids(); |
| 563 |
+ |
XFlush(ourdisplay); |
| 564 |
+ |
qtCompost(100); /* unload the old tree */ |
| 565 |
+ |
if (ncolors > 0) |
| 566 |
+ |
new_ctab(ncolors); |
| 567 |
+ |
inpresflags |= DEV_REDRAW; /* resend values from server */ |
| 568 |
+ |
return; |
| 569 |
|
case CTRL('D'): |
| 570 |
|
case 'Q': |
| 571 |
|
case 'q': /* quit the program */ |
| 600 |
|
return; |
| 601 |
|
|
| 602 |
|
if (odev.hres != 0 && odev.vres != 0) { |
| 603 |
< |
odev.v.horiz = 2.*180./PI * atan( |
| 604 |
< |
tan(PI/180./2.*odev.v.horiz) * ersz->width/odev.hres ); |
| 523 |
< |
odev.v.vert = 2.*180./PI * atan( |
| 524 |
< |
tan(PI/180./2.*odev.v.vert) * ersz->height/odev.vres ); |
| 603 |
> |
odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
| 604 |
> |
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
| 605 |
|
inpresflags |= DEV_NEWVIEW; |
| 606 |
|
} |
| 607 |
|
odev.hres = ersz->width; |