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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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#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 MAXCONE 16 /* number of different cone sizes */ |
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#endif |
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#ifndef MAXVERT |
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#define MAXVERT 32 /* maximum number of cone vertices */ |
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#define MAXVERT 64 /* maximum number of cone vertices */ |
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#endif |
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#ifndef MINVERT |
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#define MINVERT 4 /* minimum number of cone vertices */ |
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char *id; |
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{ |
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extern char *getenv(); |
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static RGBPRIMS myprims = STDPRIMS; |
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static int atlBest[] = {GLX_RGBA, GLX_RED_SIZE,8, |
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GLX_GREEN_SIZE,8, GLX_BLUE_SIZE,8, |
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GLX_DEPTH_SIZE,15, None}; |
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char *gv; |
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char *ev; |
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double gamval = GAMMA; |
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RGBPRIMP dpri = stdprims; |
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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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qtMinNodesiz = 3; |
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qtDepthEps = 0.07; |
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/* open display server */ |
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ourdisplay = XOpenDisplay(NULL); |
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if (ourdisplay == NULL) |
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/* get a context */ |
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gctx = glXCreateContext(ourdisplay, ourvinf, NULL, GL_TRUE); |
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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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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(2 * DisplayWidth(ourdisplay,ourscreen) * |
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DisplayHeight(ourdisplay,ourscreen) / |
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(qtMinNodesiz*qtMinNodesiz))) |
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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 value storage"); |
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odev.name = id; |
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odev.ifd = ConnectionNumber(ourdisplay); |
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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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glClear(GL_DEPTH_BUFFER_BIT); |
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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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register 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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|
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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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{ |
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qtUpdate(); |
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glFlush(); |
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rayqleft = RAYQLEN; |
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return(XPending(ourdisplay)); |
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} |
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{ |
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register int ci, j; |
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double apexh, basez; |
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/* is window mapped? */ |
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if (!mapped) |
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return; |
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/* compute apex height (0. to 1.) */ |
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if (ip[2] > 1e6) |
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apexh = 1. - 1./DEPTHFACT; |
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for (cp = tail; *cp && *cp != '.'; cp++) |
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; |
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if (cp-tail == 3 && !strncmp(tail, "glx", 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, "glxh", 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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for (i = 0; i < MAXCONE; i++) { |
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d = (double)i/(MAXCONE-1); d *= d; /* x^2 distribution */ |
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cone[i].rad = minrad + (1.-minrad)*d; |
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cone[i].nverts = MINVERT + (MAXVERT-MINVERT)*d; |
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cone[i].nverts = MINVERT + 0.5 + (MAXVERT-MINVERT)*d; |
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cone[i].va = (FVECT *)malloc(cone[i].nverts*sizeof(FVECT)); |
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if (cone[i].va == NULL) |
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error(SYSTEM, "out of memory in initcones"); |
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inpresflags |= DFL(DC_RESUME); |
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return; |
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case CTRL('R'): /* redraw screen */ |
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if (nxtzmax > FTINY) { |
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curzmax = nxtzmax; |
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nxtzmax = 0.; |
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} |
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glClear(GL_DEPTH_BUFFER_BIT); |
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qtRedraw(0, 0, odev.hres, odev.vres); |
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return; |
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case CTRL('L'): /* refresh from server */ |
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if (inpresflags & DFL(DC_REDRAW)) |
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return; |
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if (nxtzmax > FTINY) { |
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curzmax = nxtzmax; |
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nxtzmax = 0.; |
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} |
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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draw_grids(); |
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glFlush(); |
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qtCompost(100); /* get rid of old values */ |
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inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
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rayqleft = 0; /* hold off update */ |
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return; |
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case 'K': /* kill rtrace process(es) */ |
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inpresflags |= DFL(DC_KILL); |