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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"; |
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#include "x11icon.h" |
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|
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#define CTRL(c) ((c)-'@') |
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#ifndef RAYQLEN |
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#define RAYQLEN 50000 /* max. rays to queue before flush */ |
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#endif |
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|
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#ifndef FEQ |
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#define FEQ(a,b) ((a)-(b) <= FTINY && (a)-(b) >= -FTINY) |
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#endif |
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|
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#define GAMMA 2.2 /* default gamma correction */ |
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|
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#define MOVPCT 10 /* percent distance to move */ |
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#define MOVPCT 7 /* percent distance to move /frame */ |
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#define MOVDIR(b) ((b)==Button1 ? 1 : (b)==Button2 ? 0 : -1) |
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#define MOVDEG (-5) /* degrees to orbit CW/down /frame */ |
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#define MOVORB(s) ((s)&ShiftMask ? 1 : (s)&ControlMask ? -1 : 0) |
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|
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#define MINWIDTH 480 /* minimum graphics window width */ |
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#define MINHEIGHT 400 /* minimum graphics window height */ |
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static unsigned long ourblack=0, ourwhite=1; |
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|
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static Display *ourdisplay = NULL; /* our display */ |
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|
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static XVisualInfo ourvinfo; /* our visual information */ |
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|
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static Window gwind = 0; /* our graphics window */ |
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|
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static GC ourgc = 0; /* our graphics context for drawing */ |
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|
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static Colormap ourmap = 0; /* our color map */ |
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static double pwidth, pheight; /* pixel dimensions (mm) */ |
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for (cp = tail; *cp && *cp != '.'; cp++) |
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; |
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if (cp-tail == 3 && !strncmp(tail, "x11", 3)) |
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return(TM_F_CAMERA); |
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return(TM_F_CAMERA|TM_F_NOSTDERR); |
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if (cp-tail == 4 && !strncmp(tail, "x11h", 4)) |
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return(TM_F_HUMAN); |
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return(TM_F_HUMAN|TM_F_NOSTDERR); |
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error(USER, "illegal driver name"); |
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} |
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|
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char *id; |
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{ |
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extern char *getenv(); |
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char *gv; |
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static RGBPRIMS myprims = STDPRIMS; |
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char *ev; |
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double gamval = GAMMA; |
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RGBPRIMP dpri = stdprims; |
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int nplanes; |
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XSetWindowAttributes ourwinattr; |
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XWMHints ourxwmhints; |
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XSizeHints oursizhints; |
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/* set quadtree globals */ |
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qtDepthEps = 0.02; |
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qtMinNodesiz = 2; |
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/* open display server */ |
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ourdisplay = XOpenDisplay(NULL); |
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ourwhite = WhitePixel(ourdisplay,ourscreen); |
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} |
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/* set gamma and tone mapping */ |
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if ((gv = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
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|| (gv = getenv("DISPLAY_GAMMA")) != NULL) |
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gamval = atof(gv); |
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if (tmInit(mytmflags(), stdprims, gamval) == NULL) |
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if ((ev = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
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|| (ev = getenv("DISPLAY_GAMMA")) != NULL) |
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gamval = atof(ev); |
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if ((ev = getenv("DISPLAY_PRIMARIES")) != NULL && |
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sscanf(ev, "%f %f %f %f %f %f %f %f", |
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&myprims[RED][CIEX],&myprims[RED][CIEY], |
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&myprims[GRN][CIEX],&myprims[GRN][CIEY], |
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&myprims[BLU][CIEX],&myprims[BLU][CIEY], |
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&myprims[WHT][CIEX],&myprims[WHT][CIEY]) >= 6) |
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dpri = myprims; |
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if (tmInit(mytmflags(), dpri, gamval) == NULL) |
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error(SYSTEM, "not enough memory in dev_open"); |
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/* open window */ |
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ourwinattr.background_pixel = ourblack; |
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oursizhints.min_height = MINHEIGHT; |
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oursizhints.flags = PMinSize; |
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XSetNormalHints(ourdisplay, gwind, &oursizhints); |
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/* map the window and get its size */ |
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XMapWindow(ourdisplay, gwind); |
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dev_input(); |
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/* allocate our leaf pile */ |
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if (!qtAllocLeaves(DisplayWidth(ourdisplay,ourscreen) * |
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DisplayHeight(ourdisplay,ourscreen) / |
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(qtMinNodesiz*qtMinNodesiz))) |
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error(SYSTEM, "insufficient memory for leaf storage"); |
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|
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/* figure out sensible view */ |
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pwidth = (double)DisplayWidthMM(ourdisplay, ourscreen) / |
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DisplayWidth(ourdisplay, ourscreen); |
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pheight = (double)DisplayHeightMM(ourdisplay, ourscreen) / |
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DisplayHeight(ourdisplay, ourscreen); |
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copystruct(&odev.v, &stdview); |
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odev.name = id; |
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odev.v.type = VT_PER; |
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odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
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odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
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/* map the window and get its size */ |
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XMapWindow(ourdisplay, gwind); |
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dev_input(); /* sets size and view angles */ |
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/* allocate our leaf pile */ |
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if (!qtAllocLeaves(DisplayWidth(ourdisplay,ourscreen) * |
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DisplayHeight(ourdisplay,ourscreen) * 3 / |
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(qtMinNodesiz*qtMinNodesiz*2))) |
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error(SYSTEM, "insufficient memory for leaf storage"); |
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odev.name = id; |
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odev.ifd = ConnectionNumber(ourdisplay); |
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} |
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} |
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|
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dev_clear() /* clear our quadtree */ |
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{ |
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qtCompost(100); |
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if (ncolors > 0) |
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new_ctab(ncolors); |
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rayqleft = 0; /* hold off update */ |
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} |
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|
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|
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int |
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dev_view(nv) /* assign new driver view */ |
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VIEW *nv; |
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{ |
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if (nv != &odev.v) |
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if (nv->type == VT_PAR || /* check view legality */ |
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nv->horiz > 160. || nv->vert > 160.) { |
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error(COMMAND, "illegal view type/angle"); |
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nv->type = VT_PER; |
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nv->horiz = odev.v.horiz; |
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> |
nv->vert = odev.v.vert; |
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return(0); |
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> |
} |
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> |
if (nv->vfore > FTINY) { |
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> |
error(COMMAND, "cannot handle fore clipping"); |
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> |
nv->vfore = 0.; |
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> |
return(0); |
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> |
} |
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> |
if (nv != &odev.v) { |
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> |
if (!FEQ(nv->horiz,odev.v.horiz) || /* resize window? */ |
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> |
!FEQ(nv->vert,odev.v.vert)) { |
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> |
int dw = DisplayWidth(ourdisplay,ourscreen); |
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> |
int dh = DisplayHeight(ourdisplay,ourscreen); |
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> |
|
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> |
dw -= 25; /* for window frame */ |
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> |
dh -= 50; |
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> |
odev.hres = 2.*VIEWDIST/pwidth * |
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> |
tan(PI/180./2.*nv->horiz); |
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> |
odev.vres = 2.*VIEWDIST/pheight * |
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tan(PI/180./2.*nv->vert); |
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> |
if (odev.hres > dw) { |
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> |
odev.vres = dw * odev.vres / odev.hres; |
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odev.hres = dw; |
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> |
} |
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> |
if (odev.vres > dh) { |
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> |
odev.hres = dh * odev.hres / odev.vres; |
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> |
odev.vres = dh; |
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> |
} |
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> |
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
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> |
dev_input(); /* wait for resize event */ |
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} |
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copystruct(&odev.v, nv); |
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} |
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qtReplant(); |
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return(1); |
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} |
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|
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dev_auxcom(cmd, args) /* process an auxiliary command */ |
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char *cmd, *args; |
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{ |
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sprintf(errmsg, "%s: unknown command", cmd); |
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error(COMMAND, errmsg); |
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} |
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|
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|
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VIEW * |
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dev_auxview(n, hvres) /* return nth auxiliary view */ |
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int n; |
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int hvres[2]; |
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{ |
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if (n) |
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return(NULL); |
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hvres[0] = odev.hres; hvres[1] = odev.vres; |
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return(&odev.v); |
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} |
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|
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|
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int |
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dev_input() /* get X11 input */ |
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{ |
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do |
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getevent(); |
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|
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< |
while (XQLength(ourdisplay) > 0); |
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> |
while (XPending(ourdisplay) > 0); |
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|
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+ |
odev.inpready = 0; |
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+ |
|
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return(inpresflags); |
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} |
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dev_flush() /* flush output */ |
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{ |
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qtUpdate(); |
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< |
return(XPending(ourdisplay)); |
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> |
rayqleft = RAYQLEN; |
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> |
return(odev.inpready = XPending(ourdisplay)); |
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} |
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static |
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< |
moveview(dx, dy, move) /* move our view */ |
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< |
int dx, dy, move; |
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> |
ilclip(dp, wp) /* clip world coordinates to device */ |
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> |
int dp[2][2]; |
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> |
FVECT wp[2]; |
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|
{ |
| 467 |
+ |
static FVECT vmin = {0.,0.,0.}, vmax = {1.,1.,FHUGE}; |
| 468 |
+ |
FVECT ip[2]; |
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+ |
/* not exactly right, but who cares? */ |
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+ |
viewloc(ip[0], &odev.v, wp[0]); |
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+ |
viewloc(ip[1], &odev.v, wp[1]); |
| 472 |
+ |
if (!clip(ip[0], ip[1], vmin, vmax)) |
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+ |
return(0); |
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+ |
dp[0][0] = ip[0][0]*odev.hres; |
| 475 |
+ |
dp[0][1] = ip[0][1]*odev.vres; |
| 476 |
+ |
dp[1][0] = ip[1][0]*odev.hres; |
| 477 |
+ |
dp[1][1] = ip[1][1]*odev.vres; |
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+ |
return(1); |
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+ |
} |
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+ |
|
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+ |
|
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+ |
static |
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+ |
draw3dline(wp) /* draw 3d line in world coordinates */ |
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+ |
FVECT wp[2]; |
| 485 |
+ |
{ |
| 486 |
+ |
int dp[2][2]; |
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+ |
|
| 488 |
+ |
if (!ilclip(dp, wp)) |
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+ |
return; |
| 490 |
+ |
XDrawLine(ourdisplay, gwind, ourgc, |
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dp[0][0], odev.vres-1 - dp[0][1], |
| 492 |
+ |
dp[1][0], odev.vres-1 - dp[1][1]); |
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+ |
} |
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+ |
|
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+ |
|
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static |
| 497 |
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draw_grids() /* draw holodeck section grids */ |
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+ |
{ |
| 499 |
+ |
static BYTE gridrgb[3] = {0x0, 0xff, 0xff}; |
| 500 |
+ |
unsigned long pixel; |
| 501 |
+ |
|
| 502 |
+ |
if (!mapped) |
| 503 |
+ |
return; |
| 504 |
+ |
if (ncolors > 0) |
| 505 |
+ |
pixel = pixval[get_pixel(gridrgb, xnewcolr)]; |
| 506 |
+ |
else |
| 507 |
+ |
pixel = true_pixel(gridrgb); |
| 508 |
+ |
XSetForeground(ourdisplay, ourgc, pixel); |
| 509 |
+ |
/* draw each grid line */ |
| 510 |
+ |
gridlines(draw3dline); |
| 511 |
+ |
} |
| 512 |
+ |
|
| 513 |
+ |
|
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+ |
static |
| 515 |
+ |
moveview(dx, dy, mov, orb) /* move our view */ |
| 516 |
+ |
int dx, dy, mov, orb; |
| 517 |
+ |
{ |
| 518 |
|
VIEW nv; |
| 519 |
+ |
FVECT odir, v1; |
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|
double d; |
| 521 |
< |
register int i, li; |
| 521 |
> |
register int li; |
| 522 |
|
/* start with old view */ |
| 523 |
|
copystruct(&nv, &odev.v); |
| 524 |
|
/* change view direction */ |
| 525 |
< |
if (move) { |
| 525 |
> |
if (mov | orb) { |
| 526 |
|
if ((li = qtFindLeaf(dx, dy)) < 0) |
| 527 |
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return(0); /* not on window */ |
| 528 |
< |
for (i = 0; i < 3; i++) |
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< |
nv.vdir[i] = qtL.wp[li][i] - nv.vp[i]; |
| 528 |
> |
VSUM(odir, qtL.wp[li], nv.vp, -1.); |
| 529 |
|
} else { |
| 530 |
|
if (viewray(nv.vp, nv.vdir, &odev.v, |
| 531 |
|
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
| 532 |
|
return(0); /* outside view */ |
| 533 |
|
} |
| 534 |
< |
/* move viewpoint */ |
| 535 |
< |
if (move > 0) |
| 536 |
< |
for (i = 0; i < 3; i++) |
| 537 |
< |
nv.vp[i] += MOVPCT/100. * nv.vdir[i]; |
| 538 |
< |
else if (move < 0) |
| 539 |
< |
for (i = 0; i < 3; i++) |
| 540 |
< |
nv.vp[i] -= MOVPCT/100. * nv.vdir[i]; |
| 541 |
< |
if (move && headlocked) { |
| 542 |
< |
d = 0; /* bring head back to same height */ |
| 543 |
< |
for (i = 0; i < 3; i++) |
| 544 |
< |
d += odev.v.vup[i] * (odev.v.vp[i] - nv.vp[i]); |
| 545 |
< |
for (i = 0; i < 3; i++) |
| 546 |
< |
nv.vp[i] += d * odev.v.vup[i]; |
| 534 |
> |
if (orb && mov) { /* orbit left/right */ |
| 535 |
> |
spinvector(odir, odir, nv.vup, d=MOVDEG*PI/180.*mov); |
| 536 |
> |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
| 537 |
> |
spinvector(nv.vdir, nv.vdir, nv.vup, d); |
| 538 |
> |
} else if (orb) { /* orbit up/down */ |
| 539 |
> |
fcross(v1, odir, nv.vup); |
| 540 |
> |
if (normalize(v1) == 0.) |
| 541 |
> |
return(0); |
| 542 |
> |
spinvector(odir, odir, v1, d=MOVDEG*PI/180.*orb); |
| 543 |
> |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
| 544 |
> |
spinvector(nv.vdir, nv.vdir, v1, d); |
| 545 |
> |
} else if (mov) { /* move forward/backward */ |
| 546 |
> |
d = MOVPCT/100. * mov; |
| 547 |
> |
VSUM(nv.vp, nv.vp, odir, d); |
| 548 |
|
} |
| 549 |
+ |
if (!mov ^ !orb && headlocked) { /* restore head height */ |
| 550 |
+ |
VSUM(v1, odev.v.vp, nv.vp, -1.); |
| 551 |
+ |
d = DOT(v1, odev.v.vup); |
| 552 |
+ |
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
| 553 |
+ |
} |
| 554 |
|
if (setview(&nv) != NULL) |
| 555 |
|
return(0); /* illegal view */ |
| 556 |
|
dev_view(&nv); |
| 557 |
< |
inpresflags |= DEV_NEWVIEW; |
| 557 |
> |
inpresflags |= DFL(DC_SETVIEW); |
| 558 |
|
return(1); |
| 559 |
|
} |
| 560 |
|
|
| 563 |
|
getmove(ebut) /* get view change */ |
| 564 |
|
XButtonPressedEvent *ebut; |
| 565 |
|
{ |
| 566 |
< |
int whichbutton = ebut->button; |
| 566 |
> |
int movdir = MOVDIR(ebut->button); |
| 567 |
> |
int movorb = MOVORB(ebut->state); |
| 568 |
|
int oldnodesiz = qtMinNodesiz; |
| 569 |
|
Window rootw, childw; |
| 570 |
|
int rootx, rooty, wx, wy; |
| 571 |
|
unsigned int statemask; |
| 572 |
|
|
| 573 |
|
qtMinNodesiz = 16; /* for quicker update */ |
| 574 |
+ |
XNoOp(ourdisplay); |
| 575 |
|
|
| 576 |
< |
do { |
| 576 |
> |
while (!XCheckMaskEvent(ourdisplay, |
| 577 |
> |
ButtonReleaseMask, levptr(XEvent))) { |
| 578 |
> |
|
| 579 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
| 580 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
| 581 |
|
break; /* on another screen */ |
| 582 |
|
|
| 583 |
< |
if (!moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton))) |
| 583 |
> |
if (!moveview(wx, odev.vres-1-wy, movdir, movorb)) { |
| 584 |
|
sleep(1); |
| 585 |
< |
else |
| 586 |
< |
qtUpdate(); |
| 587 |
< |
|
| 588 |
< |
} while (!XCheckMaskEvent(ourdisplay, |
| 589 |
< |
ButtonReleaseMask, levptr(XEvent))); |
| 590 |
< |
|
| 591 |
< |
if (!(inpresflags & DEV_NEWVIEW)) { /* do final motion */ |
| 592 |
< |
whichbutton = levptr(XButtonReleasedEvent)->button; |
| 585 |
> |
continue; |
| 586 |
> |
} |
| 587 |
> |
XClearWindow(ourdisplay, gwind); |
| 588 |
> |
qtUpdate(); |
| 589 |
> |
draw_grids(); |
| 590 |
> |
} |
| 591 |
> |
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
| 592 |
> |
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
| 593 |
|
wx = levptr(XButtonReleasedEvent)->x; |
| 594 |
|
wy = levptr(XButtonReleasedEvent)->y; |
| 595 |
< |
moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton)); |
| 454 |
< |
dev_flush(); |
| 595 |
> |
moveview(wx, odev.vres-1-wy, movdir, movorb); |
| 596 |
|
} |
| 597 |
+ |
dev_flush(); |
| 598 |
|
|
| 599 |
|
qtMinNodesiz = oldnodesiz; /* restore quadtree resolution */ |
| 600 |
|
} |
| 617 |
|
case 'H': /* turn off height motion lock */ |
| 618 |
|
headlocked = 0; |
| 619 |
|
return; |
| 620 |
< |
case CTRL('S'): |
| 620 |
> |
case 'l': /* retrieve last view */ |
| 621 |
> |
inpresflags |= DFL(DC_LASTVIEW); |
| 622 |
> |
return; |
| 623 |
|
case 'p': /* pause computation */ |
| 624 |
< |
inpresflags |= DEV_WAIT; |
| 624 |
> |
inpresflags |= DFL(DC_PAUSE); |
| 625 |
|
return; |
| 626 |
|
case 'v': /* spit out view */ |
| 627 |
< |
fputs(VIEWSTR, stderr); |
| 484 |
< |
fprintview(&odev.v, stderr); |
| 485 |
< |
fputc('\n', stderr); |
| 627 |
> |
inpresflags |= DFL(DC_GETVIEW); |
| 628 |
|
return; |
| 487 |
– |
case CTRL('Q'): |
| 629 |
|
case '\n': |
| 630 |
|
case '\r': /* resume computation */ |
| 631 |
< |
inpresflags |= DEV_RESUME; |
| 631 |
> |
inpresflags |= DFL(DC_RESUME); |
| 632 |
|
return; |
| 633 |
|
case CTRL('R'): /* redraw screen */ |
| 634 |
|
if (ncolors > 0) |
| 636 |
|
qtRedraw(0, 0, odev.hres, odev.vres); |
| 637 |
|
return; |
| 638 |
|
case CTRL('L'): /* refresh from server */ |
| 639 |
< |
if (inpresflags & DEV_REDRAW) |
| 639 |
> |
if (inpresflags & DFL(DC_REDRAW)) |
| 640 |
|
return; |
| 641 |
|
XClearWindow(ourdisplay, gwind); |
| 642 |
+ |
draw_grids(); |
| 643 |
|
XFlush(ourdisplay); |
| 644 |
|
qtCompost(100); /* unload the old tree */ |
| 645 |
|
if (ncolors > 0) |
| 646 |
|
new_ctab(ncolors); |
| 647 |
< |
inpresflags |= DEV_REDRAW; /* resend values from server */ |
| 647 |
> |
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
| 648 |
> |
rayqleft = 0; /* hold off update */ |
| 649 |
|
return; |
| 650 |
< |
case CTRL('D'): |
| 651 |
< |
case 'Q': |
| 650 |
> |
case 'K': /* kill rtrace process(es) */ |
| 651 |
> |
inpresflags |= DFL(DC_KILL); |
| 652 |
> |
break; |
| 653 |
> |
case 'R': /* restart rtrace */ |
| 654 |
> |
inpresflags |= DFL(DC_RESTART); |
| 655 |
> |
break; |
| 656 |
> |
case 'C': /* clobber holodeck */ |
| 657 |
> |
inpresflags |= DFL(DC_CLOBBER); |
| 658 |
> |
break; |
| 659 |
|
case 'q': /* quit the program */ |
| 660 |
< |
inpresflags |= DEV_SHUTDOWN; |
| 660 |
> |
inpresflags |= DFL(DC_QUIT); |
| 661 |
|
return; |
| 662 |
|
default: |
| 663 |
|
XBell(ourdisplay, 0); |
| 673 |
|
if (odev.hres == 0 || odev.vres == 0) { /* first exposure */ |
| 674 |
|
odev.hres = eexp->width; |
| 675 |
|
odev.vres = eexp->height; |
| 526 |
– |
inpresflags |= DEV_NEWSIZE; |
| 676 |
|
} |
| 677 |
|
qtRedraw(eexp->x, odev.vres - eexp->y - eexp->height, |
| 678 |
|
eexp->x + eexp->width, odev.vres - eexp->y); |
| 686 |
|
if (ersz->width == odev.hres && ersz->height == odev.vres) |
| 687 |
|
return; |
| 688 |
|
|
| 540 |
– |
if (odev.hres != 0 && odev.vres != 0) { |
| 541 |
– |
odev.v.horiz = 2.*180./PI * atan( |
| 542 |
– |
tan(PI/180./2.*odev.v.horiz) * ersz->width/odev.hres ); |
| 543 |
– |
odev.v.vert = 2.*180./PI * atan( |
| 544 |
– |
tan(PI/180./2.*odev.v.vert) * ersz->height/odev.vres ); |
| 545 |
– |
inpresflags |= DEV_NEWVIEW; |
| 546 |
– |
} |
| 689 |
|
odev.hres = ersz->width; |
| 690 |
|
odev.vres = ersz->height; |
| 691 |
|
|
| 692 |
< |
inpresflags |= DEV_NEWSIZE; |
| 692 |
> |
odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
| 693 |
> |
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
| 694 |
> |
|
| 695 |
> |
inpresflags |= DFL(DC_SETVIEW); |
| 696 |
|
} |