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#include "x11icon.h" |
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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 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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|
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#define ourscreen DefaultScreen(ourdisplay) |
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#define ourroot RootWindow(ourdisplay,ourscreen) |
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#define ourmask (StructureNotifyMask|ExposureMask|KeyPressMask|\ |
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ButtonPressMask) |
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ButtonPressMask|ButtonReleaseMask) |
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#define levptr(etype) ((etype *)¤tevent) |
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static unsigned long ourblack=0, ourwhite=1; |
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static Display *ourdisplay = NULL; /* our display */ |
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static XVisualInfo ourvinfo; /* our visual information */ |
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static Window gwind = 0; /* our graphics window */ |
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static GC ourgc = 0; /* our graphics context for drawing */ |
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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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static int inpresflags; /* input result flags */ |
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static int heightlocked = 0; /* lock vertical motion */ |
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static int headlocked = 0; /* lock vertical motion */ |
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|
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static int getpixels(), xnewcolr(), freepixels(), resizewindow(), |
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getevent(), getkey(), fixwindow(); |
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getevent(), getkey(), moveview(), getmove(), fixwindow(); |
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static unsigned long true_pixel(); |
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char *gv; |
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double gamval = GAMMA; |
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int nplanes; |
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int n; |
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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 = 2; |
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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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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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/* 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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odev.ifd = ConnectionNumber(ourdisplay); |
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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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qtDepthEps = 0.02; |
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n = odev.hres < odev.vres ? odev.hres : odev.vres; |
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qtMinNodesiz = 1; |
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if (!qtAllocLeaves(n*n/(qtMinNodesiz*qtMinNodesiz))) |
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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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odev.name = id; |
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odev.ifd = ConnectionNumber(ourdisplay); |
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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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dev_input() /* get X11 input */ |
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{ |
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inpresflags = 0; |
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|
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do |
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getevent(); |
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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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getmove(levptr(XButtonPressedEvent)); |
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break; |
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} |
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} |
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static |
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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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{ |
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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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if (!clip(ip[0], ip[1], vmin, vmax)) |
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return(0); |
428 |
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dp[0][0] = ip[0][0]*odev.hres; |
429 |
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dp[0][1] = ip[0][1]*odev.vres; |
430 |
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dp[1][0] = ip[1][0]*odev.hres; |
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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]; |
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{ |
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int dp[2][2]; |
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|
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if (!ilclip(dp, wp)) |
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return; |
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XDrawLine(ourdisplay, gwind, ourgc, |
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dp[0][0], odev.vres-1 - dp[0][1], |
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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 |
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draw_grids() /* draw holodeck section grids */ |
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{ |
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static BYTE gridrgb[3] = {0x0, 0xff, 0xff}; |
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unsigned long pixel; |
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|
456 |
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if (!mapped || odev.v.type != VT_PER) |
457 |
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return; |
458 |
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if (ncolors > 0) |
459 |
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pixel = pixval[get_pixel(gridrgb, xnewcolr)]; |
460 |
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else |
461 |
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pixel = true_pixel(gridrgb); |
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XSetForeground(ourdisplay, ourgc, pixel); |
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/* draw each grid line */ |
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gridlines(draw3dline); |
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} |
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|
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|
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static |
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moveview(dx, dy, mov, orb) /* move our view */ |
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int dx, dy, mov, orb; |
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{ |
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VIEW nv; |
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FVECT odir, v1; |
474 |
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double d; |
475 |
+ |
register int li; |
476 |
+ |
/* start with old view */ |
477 |
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copystruct(&nv, &odev.v); |
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/* change view direction */ |
479 |
+ |
if (mov | orb) { |
480 |
+ |
if ((li = qtFindLeaf(dx, dy)) < 0) |
481 |
+ |
return(0); /* not on window */ |
482 |
+ |
VSUM(odir, qtL.wp[li], nv.vp, -1.); |
483 |
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} else { |
484 |
+ |
if (viewray(nv.vp, nv.vdir, &odev.v, |
485 |
+ |
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
486 |
+ |
return(0); /* outside view */ |
487 |
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} |
488 |
+ |
if (orb && mov) { /* orbit left/right */ |
489 |
+ |
spinvector(odir, odir, nv.vup, d=MOVDEG*PI/180.*mov); |
490 |
+ |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
491 |
+ |
spinvector(nv.vdir, nv.vdir, nv.vup, d); |
492 |
+ |
} else if (orb) { /* orbit up/down */ |
493 |
+ |
fcross(v1, odir, nv.vup); |
494 |
+ |
if (normalize(v1) == 0.) |
495 |
+ |
return(0); |
496 |
+ |
spinvector(odir, odir, v1, d=MOVDEG*PI/180.*orb); |
497 |
+ |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
498 |
+ |
spinvector(nv.vdir, nv.vdir, v1, d); |
499 |
+ |
} else if (mov) { /* move forward/backward */ |
500 |
+ |
d = MOVPCT/100. * mov; |
501 |
+ |
VSUM(nv.vp, nv.vp, odir, d); |
502 |
+ |
} |
503 |
+ |
if (!mov ^ !orb && headlocked) { /* restore head height */ |
504 |
+ |
VSUM(v1, odev.v.vp, nv.vp, -1.); |
505 |
+ |
d = DOT(v1, odev.v.vup); |
506 |
+ |
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
507 |
+ |
} |
508 |
+ |
if (setview(&nv) != NULL) |
509 |
+ |
return(0); /* illegal view */ |
510 |
+ |
dev_view(&nv); |
511 |
+ |
inpresflags |= DFL(DC_SETVIEW); |
512 |
+ |
return(1); |
513 |
+ |
} |
514 |
+ |
|
515 |
+ |
|
516 |
+ |
static |
517 |
+ |
getmove(ebut) /* get view change */ |
518 |
+ |
XButtonPressedEvent *ebut; |
519 |
+ |
{ |
520 |
+ |
int movdir = MOVDIR(ebut->button); |
521 |
+ |
int movorb = MOVORB(ebut->state); |
522 |
+ |
int oldnodesiz = qtMinNodesiz; |
523 |
+ |
Window rootw, childw; |
524 |
+ |
int rootx, rooty, wx, wy; |
525 |
+ |
unsigned int statemask; |
526 |
+ |
|
527 |
+ |
qtMinNodesiz = 16; /* for quicker update */ |
528 |
+ |
XNoOp(ourdisplay); |
529 |
+ |
|
530 |
+ |
while (!XCheckMaskEvent(ourdisplay, |
531 |
+ |
ButtonReleaseMask, levptr(XEvent))) { |
532 |
+ |
|
533 |
+ |
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
534 |
+ |
&rootx, &rooty, &wx, &wy, &statemask)) |
535 |
+ |
break; /* on another screen */ |
536 |
+ |
|
537 |
+ |
if (!moveview(wx, odev.vres-1-wy, movdir, movorb)) { |
538 |
+ |
sleep(1); |
539 |
+ |
continue; |
540 |
+ |
} |
541 |
+ |
XClearWindow(ourdisplay, gwind); |
542 |
+ |
qtUpdate(); |
543 |
+ |
draw_grids(); |
544 |
+ |
} |
545 |
+ |
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
546 |
+ |
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
547 |
+ |
wx = levptr(XButtonReleasedEvent)->x; |
548 |
+ |
wy = levptr(XButtonReleasedEvent)->y; |
549 |
+ |
moveview(wx, odev.vres-1-wy, movdir, movorb); |
550 |
+ |
} |
551 |
+ |
dev_flush(); |
552 |
+ |
|
553 |
+ |
qtMinNodesiz = oldnodesiz; /* restore quadtree resolution */ |
554 |
+ |
} |
555 |
+ |
|
556 |
+ |
|
557 |
+ |
static |
558 |
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getkey(ekey) /* get input key */ |
559 |
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register XKeyPressedEvent *ekey; |
560 |
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{ |
566 |
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return; |
567 |
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switch (buf[0]) { |
568 |
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case 'h': /* turn on height motion lock */ |
569 |
< |
heightlocked = 1; |
569 |
> |
headlocked = 1; |
570 |
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return; |
571 |
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case 'H': /* turn off height motion lock */ |
572 |
< |
heightlocked = 0; |
572 |
> |
headlocked = 0; |
573 |
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return; |
574 |
< |
case 'Q': |
574 |
> |
case 'l': /* retrieve last view */ |
575 |
> |
inpresflags |= DFL(DC_LASTVIEW); |
576 |
> |
return; |
577 |
> |
case 'p': /* pause computation */ |
578 |
> |
inpresflags |= DFL(DC_PAUSE); |
579 |
> |
return; |
580 |
> |
case 'v': /* spit out view */ |
581 |
> |
inpresflags |= DFL(DC_GETVIEW); |
582 |
> |
return; |
583 |
> |
case '\n': |
584 |
> |
case '\r': /* resume computation */ |
585 |
> |
inpresflags |= DFL(DC_RESUME); |
586 |
> |
return; |
587 |
> |
case CTRL('R'): /* redraw screen */ |
588 |
> |
if (ncolors > 0) |
589 |
> |
new_ctab(ncolors); |
590 |
> |
qtRedraw(0, 0, odev.hres, odev.vres); |
591 |
> |
return; |
592 |
> |
case CTRL('L'): /* refresh from server */ |
593 |
> |
if (inpresflags & DFL(DC_REDRAW)) |
594 |
> |
return; |
595 |
> |
XClearWindow(ourdisplay, gwind); |
596 |
> |
draw_grids(); |
597 |
> |
XFlush(ourdisplay); |
598 |
> |
qtCompost(100); /* unload the old tree */ |
599 |
> |
if (ncolors > 0) |
600 |
> |
new_ctab(ncolors); |
601 |
> |
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
602 |
> |
return; |
603 |
> |
case 'K': /* kill rtrace process(es) */ |
604 |
> |
inpresflags |= DFL(DC_KILL); |
605 |
> |
break; |
606 |
> |
case 'R': /* restart rtrace */ |
607 |
> |
inpresflags |= DFL(DC_RESTART); |
608 |
> |
break; |
609 |
> |
case 'C': /* clobber holodeck */ |
610 |
> |
inpresflags |= DFL(DC_CLOBBER); |
611 |
> |
break; |
612 |
|
case 'q': /* quit the program */ |
613 |
< |
inpresflags |= DEV_SHUTDOWN; |
613 |
> |
inpresflags |= DFL(DC_QUIT); |
614 |
|
return; |
615 |
|
default: |
616 |
|
XBell(ourdisplay, 0); |
624 |
|
register XExposeEvent *eexp; |
625 |
|
{ |
626 |
|
if (odev.hres == 0 || odev.vres == 0) { /* first exposure */ |
407 |
– |
eputs("Resizing window in fixwindow\n"); |
627 |
|
odev.hres = eexp->width; |
628 |
|
odev.vres = eexp->height; |
410 |
– |
inpresflags |= DEV_NEWSIZE; |
629 |
|
} |
630 |
|
qtRedraw(eexp->x, odev.vres - eexp->y - eexp->height, |
631 |
|
eexp->x + eexp->width, odev.vres - eexp->y); |
639 |
|
if (ersz->width == odev.hres && ersz->height == odev.vres) |
640 |
|
return; |
641 |
|
|
424 |
– |
if (odev.hres != 0 && odev.vres != 0) { |
425 |
– |
odev.v.horiz = 2.*180./PI * atan( |
426 |
– |
tan(PI/180./2.*odev.v.horiz) * ersz->width/odev.hres ); |
427 |
– |
odev.v.vert = 2.*180./PI * atan( |
428 |
– |
tan(PI/180./2.*odev.v.vert) * ersz->height/odev.vres ); |
429 |
– |
inpresflags |= DEV_NEWVIEW; |
430 |
– |
} |
642 |
|
odev.hres = ersz->width; |
643 |
|
odev.vres = ersz->height; |
644 |
|
|
645 |
< |
inpresflags |= DEV_NEWSIZE; |
645 |
> |
odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
646 |
> |
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
647 |
> |
|
648 |
> |
inpresflags |= DFL(DC_SETVIEW); |
649 |
|
} |