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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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*/ |
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#include "standard.h" |
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#include "rhd_qtree.h" |
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#include <X11/Xlib.h> |
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#include <X11/cursorfont.h> |
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#include <X11/Xutil.h> |
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#include "rhd_qtree.h" |
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#include "x11icon.h" |
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|
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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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#define GAMMA 2.2 /* default gamma correction */ |
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|
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#define FRAMESTATE(s) (((s)&(ShiftMask|ControlMask))==(ShiftMask|ControlMask)) |
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|
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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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struct driver odev; /* global device driver structure */ |
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char odev_args[64]; /* command arguments */ |
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|
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static XEvent currentevent; /* current event */ |
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static int ncolors = 0; /* color table size */ |
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static int headlocked = 0; /* lock vertical motion */ |
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static int getpixels(), xnewcolr(), freepixels(), resizewindow(), |
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static int getpixels(), xnewcolr(), freepixels(), resizewindow(), getframe(), |
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getevent(), getkey(), moveview(), getmove(), fixwindow(); |
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static unsigned long true_pixel(); |
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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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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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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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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->type == VT_PAR || /* check view legality */ |
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nv->horiz > 160. || nv->vert > 160.) { |
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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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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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} |
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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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while (XQLength(ourdisplay) > 0); |
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while (XPending(ourdisplay) > 0); |
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odev.inpready = 0; |
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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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getkey(levptr(XKeyPressedEvent)); |
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break; |
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case ButtonPress: |
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getmove(levptr(XButtonPressedEvent)); |
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if (FRAMESTATE(levptr(XButtonPressedEvent)->state)) |
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getframe(levptr(XButtonPressedEvent)); |
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else |
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getmove(levptr(XButtonPressedEvent)); |
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break; |
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} |
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} |
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int dp[2][2]; |
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FVECT wp[2]; |
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{ |
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static FVECT vmin = {0.,0.,0.}, vmax = {1.,1.,FHUGE}; |
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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]); |
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static FVECT vmin = {0.,0.,0.}, vmax = {1.-FTINY,1.-FTINY,FHUGE}; |
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> |
FVECT wpc[2], ip[2]; |
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double d, d0, d1; |
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/* check for points behind view */ |
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d = DOT(odev.v.vp, odev.v.vdir); |
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d0 = DOT(wp[0], odev.v.vdir) - d; |
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d1 = DOT(wp[1], odev.v.vdir) - d; |
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/* work on copy of world points */ |
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> |
if (d0 <= d1) { |
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> |
VCOPY(wpc[0], wp[0]); VCOPY(wpc[1], wp[1]); |
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} else { |
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> |
d = d0; d0 = d1; d1 = d; |
484 |
> |
VCOPY(wpc[1], wp[0]); VCOPY(wpc[0], wp[1]); |
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> |
} |
486 |
> |
if (d0 <= FTINY) { |
487 |
> |
if (d1 <= FTINY) return(0); |
488 |
> |
VSUB(wpc[0], wpc[0], wpc[1]); |
489 |
> |
d = .99*d1/(d1-d0); |
490 |
> |
VSUM(wpc[0], wpc[1], wpc[0], d); |
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> |
} |
492 |
> |
/* get view coordinates and clip to window */ |
493 |
> |
viewloc(ip[0], &odev.v, wpc[0]); |
494 |
> |
viewloc(ip[1], &odev.v, wpc[1]); |
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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; |
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static BYTE gridrgb[3] = {0x0, 0xff, 0xff}; |
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unsigned long pixel; |
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|
458 |
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if (!mapped || odev.v.type != VT_PER) |
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return; |
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if (ncolors > 0) |
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pixel = pixval[get_pixel(gridrgb, xnewcolr)]; |
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else |
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int dx, dy, mov, orb; |
538 |
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{ |
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VIEW nv; |
540 |
< |
FVECT v1; |
540 |
> |
FVECT odir, v1; |
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double d; |
542 |
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register int li; |
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/* start with old view */ |
546 |
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if (mov | orb) { |
547 |
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if ((li = qtFindLeaf(dx, dy)) < 0) |
548 |
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return(0); /* not on window */ |
549 |
< |
VSUM(nv.vdir, qtL.wp[li], nv.vp, -1.); |
549 |
> |
VSUM(odir, qtL.wp[li], nv.vp, -1.); |
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} else { |
551 |
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if (viewray(nv.vp, nv.vdir, &odev.v, |
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(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
553 |
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return(0); /* outside view */ |
554 |
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} |
555 |
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if (orb && mov) { /* orbit left/right */ |
556 |
< |
spinvector(nv.vdir, nv.vdir, nv.vup, MOVDEG*PI/180.*mov); |
557 |
< |
VSUM(nv.vp, qtL.wp[li], nv.vdir, -1.); |
556 |
> |
spinvector(odir, odir, nv.vup, d=MOVDEG*PI/180.*mov); |
557 |
> |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
558 |
> |
spinvector(nv.vdir, nv.vdir, nv.vup, d); |
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} else if (orb) { /* orbit up/down */ |
560 |
< |
fcross(v1, nv.vdir, nv.vup); |
560 |
> |
fcross(v1, odir, nv.vup); |
561 |
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if (normalize(v1) == 0.) |
562 |
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return(0); |
563 |
< |
spinvector(nv.vdir, nv.vdir, v1, MOVDEG*PI/180.*orb); |
564 |
< |
VSUM(nv.vp, qtL.wp[li], nv.vdir, -1.); |
563 |
> |
spinvector(odir, odir, v1, d=MOVDEG*PI/180.*orb); |
564 |
> |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
565 |
> |
spinvector(nv.vdir, nv.vdir, v1, d); |
566 |
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} else if (mov) { /* move forward/backward */ |
567 |
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d = MOVPCT/100. * mov; |
568 |
< |
VSUM(nv.vp, nv.vp, nv.vdir, d); |
568 |
> |
VSUM(nv.vp, nv.vp, odir, d); |
569 |
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} |
570 |
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if (!mov ^ !orb && headlocked) { /* restore head height */ |
571 |
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VSUM(v1, odev.v.vp, nv.vp, -1.); |
581 |
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582 |
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|
583 |
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static |
584 |
+ |
getframe(ebut) /* get focus frame */ |
585 |
+ |
XButtonPressedEvent *ebut; |
586 |
+ |
{ |
587 |
+ |
int startx = ebut->x, starty = ebut->y; |
588 |
+ |
int endx, endy; |
589 |
+ |
|
590 |
+ |
XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent)); |
591 |
+ |
endx = levptr(XButtonReleasedEvent)->x; |
592 |
+ |
endy = levptr(XButtonReleasedEvent)->y; |
593 |
+ |
if (endx == startx | endy == starty) { |
594 |
+ |
XBell(ourdisplay, 0); |
595 |
+ |
return; |
596 |
+ |
} |
597 |
+ |
if (endx < startx) {register int c = endx; endx = startx; startx = c;} |
598 |
+ |
if (endy < starty) {register int c = endy; endy = starty; starty = c;} |
599 |
+ |
sprintf(odev_args, "%.3f %.3f %.3f %.3f", |
600 |
+ |
(startx+.5)/odev.hres, 1.-(endy+.5)/odev.vres, |
601 |
+ |
(endx+.5)/odev.hres, 1.-(starty+.5)/odev.vres); |
602 |
+ |
inpresflags |= DFL(DC_FOCUS); |
603 |
+ |
} |
604 |
+ |
|
605 |
+ |
|
606 |
+ |
static |
607 |
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getmove(ebut) /* get view change */ |
608 |
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XButtonPressedEvent *ebut; |
609 |
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{ |
648 |
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getkey(ekey) /* get input key */ |
649 |
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register XKeyPressedEvent *ekey; |
650 |
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{ |
651 |
+ |
Window rootw, childw; |
652 |
+ |
int rootx, rooty, wx, wy; |
653 |
+ |
unsigned int statemask; |
654 |
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int n; |
655 |
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char buf[8]; |
656 |
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|
667 |
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case 'l': /* retrieve last view */ |
668 |
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inpresflags |= DFL(DC_LASTVIEW); |
669 |
|
return; |
670 |
+ |
case 'f': /* frame view position */ |
671 |
+ |
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
672 |
+ |
&rootx, &rooty, &wx, &wy, &statemask)) |
673 |
+ |
return; /* on another screen */ |
674 |
+ |
sprintf(odev_args, "%.4f %.4f", (wx+.5)/odev.hres, |
675 |
+ |
1.-(wy+.5)/odev.vres); |
676 |
+ |
inpresflags |= DFL(DC_FOCUS); |
677 |
+ |
return; |
678 |
+ |
case 'F': /* unfocus */ |
679 |
+ |
odev_args[0] = '\0'; |
680 |
+ |
inpresflags |= DFL(DC_FOCUS); |
681 |
+ |
return; |
682 |
|
case 'p': /* pause computation */ |
683 |
|
inpresflags |= DFL(DC_PAUSE); |
684 |
|
return; |
704 |
|
if (ncolors > 0) |
705 |
|
new_ctab(ncolors); |
706 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
707 |
+ |
rayqleft = 0; /* hold off update */ |
708 |
|
return; |
709 |
|
case 'K': /* kill rtrace process(es) */ |
710 |
|
inpresflags |= DFL(DC_KILL); |