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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* X11 driver for holodeck display. |
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* Based on rview driver. |
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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 <time.h> |
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#include "rhd_qtree.h" |
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#include "x11icon.h" |
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#ifndef RAYQLEN |
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#define GAMMA 2.2 /* default gamma correction */ |
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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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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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} |
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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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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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dev_section(ofn) /* add octree for geometry rendering */ |
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char *ofn; |
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{ |
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/* unimplemented */ |
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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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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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{ |
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qtUpdate(); |
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rayqleft = RAYQLEN; |
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return(XPending(ourdisplay)); |
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return(odev.inpready = XPending(ourdisplay)); |
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} |
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return(ncolors = 0); |
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if (XAllocColorCells(ourdisplay,ourmap,0,NULL,0,pixval,ncolors)) |
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break; |
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free((char *)pixval); |
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free((void *)pixval); |
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pixval = NULL; |
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} |
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if (pixval == NULL) { |
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if (ncolors == 0) |
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return; |
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XFreeColors(ourdisplay,ourmap,pixval,ncolors,0L); |
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free((char *)pixval); |
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free((void *)pixval); |
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pixval = NULL; |
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ncolors = 0; |
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if (ourmap != DefaultColormap(ourdisplay,ourscreen)) |
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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; |
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VCOPY(wpc[1], wp[0]); VCOPY(wpc[0], wp[1]); |
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} |
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if (d0 <= FTINY) { |
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if (d1 <= FTINY) return(0); |
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VSUB(wpc[0], wpc[0], wpc[1]); |
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d = .99*d1/(d1-d0); |
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VSUM(wpc[0], wpc[1], wpc[0], d); |
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} |
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/* get view coordinates and clip to window */ |
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viewloc(ip[0], &odev.v, wpc[0]); |
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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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if (!mapped) |
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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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static |
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getframe(ebut) /* get focus frame */ |
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XButtonPressedEvent *ebut; |
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{ |
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int startx = ebut->x, starty = ebut->y; |
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int endx, endy; |
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|
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XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent)); |
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endx = levptr(XButtonReleasedEvent)->x; |
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endy = levptr(XButtonReleasedEvent)->y; |
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if (endx == startx | endy == starty) { |
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XBell(ourdisplay, 0); |
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return; |
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} |
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if (endx < startx) {register int c = endx; endx = startx; startx = c;} |
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if (endy < starty) {register int c = endy; endy = starty; starty = c;} |
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sprintf(odev_args, "%.3f %.3f %.3f %.3f", |
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(startx+.5)/odev.hres, 1.-(endy+.5)/odev.vres, |
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(endx+.5)/odev.hres, 1.-(starty+.5)/odev.vres); |
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inpresflags |= DFL(DC_FOCUS); |
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} |
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|
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static |
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waitabit() /* pause a moment */ |
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{ |
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struct timespec ts; |
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ts.tv_sec = 0; |
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ts.tv_nsec = 5000000; |
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nanosleep(&ts, NULL); |
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} |
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static |
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getmove(ebut) /* get view change */ |
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XButtonPressedEvent *ebut; |
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{ |
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while (!XCheckMaskEvent(ourdisplay, |
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ButtonReleaseMask, levptr(XEvent))) { |
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waitabit(); |
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if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
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&rootx, &rooty, &wx, &wy, &statemask)) |
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break; /* on another screen */ |
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getkey(ekey) /* get input key */ |
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register XKeyPressedEvent *ekey; |
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{ |
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Window rootw, childw; |
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int rootx, rooty, wx, wy; |
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unsigned int statemask; |
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int n; |
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char buf[8]; |
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return; |
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case 'l': /* retrieve last view */ |
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inpresflags |= DFL(DC_LASTVIEW); |
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return; |
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case 'f': /* frame view position */ |
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if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
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&rootx, &rooty, &wx, &wy, &statemask)) |
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return; /* on another screen */ |
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sprintf(odev_args, "%.4f %.4f", (wx+.5)/odev.hres, |
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1.-(wy+.5)/odev.vres); |
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inpresflags |= DFL(DC_FOCUS); |
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return; |
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case 'F': /* unfocus */ |
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odev_args[0] = '\0'; |
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inpresflags |= DFL(DC_FOCUS); |
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return; |
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case 'p': /* pause computation */ |
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inpresflags |= DFL(DC_PAUSE); |