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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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#ifndef RAYQLEN |
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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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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_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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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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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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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 |
