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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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> |
/* Copyright (c) 1999 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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/* |
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* OpenGL GLX driver for holodeck display. |
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* Based on x11 driver. |
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* Based on old GLX driver using cones. |
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* |
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* Define symbol STEREO for stereo viewing. |
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* Define symbol DOBJ for display object viewing. |
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*/ |
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|
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#ifdef NOSTEREO |
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#ifdef STEREO |
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#undef STEREO |
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#else |
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#undef NOSTEREO |
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#endif |
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#endif |
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|
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#include "standard.h" |
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#include "rhd_qtree.h" |
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|
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#include <GL/glx.h> |
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#include <GL/glx.h> |
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#include <GL/glu.h> |
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#ifdef STEREO |
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#include <X11/extensions/SGIStereo.h> |
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#endif |
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|
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#include "x11icon.h" |
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#include "rhd_sample.h" |
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#ifdef DOBJ |
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#include "rhdobj.h" |
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#endif |
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|
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#include "x11icon.h" |
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|
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#ifndef RAYQLEN |
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#define RAYQLEN 1024 /* 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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|
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#ifndef MAXCONE |
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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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#endif |
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#ifndef MINVERT |
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#define MINVERT 4 /* minimum number of cone vertices */ |
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#endif |
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#ifndef DEPTHFACT |
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#define DEPTHFACT 16. /* multiplier for depth tests */ |
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#endif |
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|
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#define GAMMA 1.4 /* 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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#define MOVORB(s) ((s)&ShiftMask ? 1 : (s)&ControlMask ? -1 : 0) |
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|
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#ifndef TARGETFPS |
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#define TARGETFPS 2.0 /* target frames/sec during motion */ |
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#endif |
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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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|
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#define BORWIDTH 5 /* border width */ |
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|
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#define setstereobuf(bid) (glXWaitGL(), \ |
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XSGISetStereoBuffer(ourdisplay, gwind, bid), \ |
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glXWaitX()) |
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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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|
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struct driver odev; /* global device driver structure */ |
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|
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char odev_args[64]; /* command arguments */ |
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|
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#ifdef STEREO |
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static VIEW vwright; /* right eye view */ |
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#endif |
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|
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static int rayqleft = 0; /* rays left to queue before flush */ |
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|
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static XEvent currentevent; /* current event */ |
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|
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static int mapped = 0; /* window is mapped? */ |
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|
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static double pwidth, pheight; /* pixel dimensions (mm) */ |
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|
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static double curzmax = 1e4; /* current depth upper limit */ |
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static double nxtzmax = 0.; /* maximum (finite) depth so far */ |
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static double mindpth, maxdpth; /* min. and max. depth */ |
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|
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static struct { |
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double rad; /* cone radius */ |
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int nverts; /* number of vertices */ |
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FVECT *va; /* allocated vertex array */ |
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} cone[MAXCONE]; /* precomputed cones for drawing */ |
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double dev_zmin, dev_zmax; /* fore and aft clipping plane dist. */ |
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|
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static int inpresflags; /* input result flags */ |
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|
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static int headlocked = 0; /* lock vertical motion */ |
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|
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static int resizewindow(), getevent(), getkey(), moveview(), |
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initcones(), freecones(), |
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getmove(), fixwindow(), mytmflags(); |
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static int resizewindow(), getevent(), getkey(), moveview(), wipeclean(), |
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setglpersp(), getframe(), getmove(), fixwindow(), mytmflags(); |
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|
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#ifdef STEREO |
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static int pushright(), popright(); |
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#endif |
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static double getdistance(); |
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#define mapdepth(d) ((d)> 0.9995 ? FHUGE: dev_zmin/ \ |
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(1.-(d)*(1.-dev_zmin/dev_zmax))) |
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|
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dev_open(id) /* initialize X11 driver */ |
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extern time_t time(); |
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|
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|
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dev_open(id) /* initialize GLX driver */ |
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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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/* check for unsupported stereo */ |
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#ifdef NOSTEREO |
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error(INTERNAL, "stereo display driver unavailable"); |
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#endif |
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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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error(USER, "cannot open X-windows; DISPLAY variable set?\n"); |
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#ifdef STEREO |
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switch (XSGIQueryStereoMode(ourdisplay, ourroot)) { |
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case STEREO_TOP: |
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case STEREO_BOTTOM: |
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break; |
147 |
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case STEREO_OFF: |
148 |
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error(USER, |
149 |
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"wrong video mode: run \"/usr/gfx/setmon -n STR_TOP\" first"); |
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case X_STEREO_UNSUPPORTED: |
151 |
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error(USER, "stereo mode not supported on this screen"); |
152 |
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default: |
153 |
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error(INTERNAL, "unknown stereo mode"); |
154 |
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} |
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#endif |
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/* find a usable visual */ |
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ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlBest); |
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if (ourvinf == 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 */ |
163 |
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if ((gv = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
164 |
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|| (gv = getenv("DISPLAY_GAMMA")) != NULL) |
165 |
< |
gamval = atof(gv); |
166 |
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if (tmInit(mytmflags(), stdprims, gamval) == NULL) |
163 |
> |
if ((ev = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
164 |
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|| (ev = getenv("DISPLAY_GAMMA")) != NULL) |
165 |
> |
gamval = atof(ev); |
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> |
if ((ev = getenv("DISPLAY_PRIMARIES")) != NULL && |
167 |
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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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ourvinf->visual, AllocNone); |
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gwind = XCreateWindow(ourdisplay, ourroot, 0, 0, |
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DisplayWidth(ourdisplay,ourscreen)-2*BORWIDTH, |
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#ifdef STEREO |
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(DisplayHeight(ourdisplay,ourscreen)-2*BORWIDTH)/2, |
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#else |
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DisplayHeight(ourdisplay,ourscreen)-2*BORWIDTH, |
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#endif |
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BORWIDTH, ourvinf->depth, InputOutput, ourvinf->visual, |
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CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &ourwinattr); |
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if (gwind == 0) |
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gwind, x11icon_bits, x11icon_width, x11icon_height); |
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XSetWMHints(ourdisplay, gwind, &ourxwmhints); |
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oursizhints.min_width = MINWIDTH; |
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#ifdef STEREO |
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oursizhints.min_height = MINHEIGHT/2; |
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oursizhints.max_width = DisplayWidth(ourdisplay,ourscreen)-2*BORWIDTH; |
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oursizhints.max_height = (DisplayHeight(ourdisplay,ourscreen) - |
205 |
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2*BORWIDTH)/2; |
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oursizhints.flags = PMinSize|PMaxSize; |
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#else |
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oursizhints.min_height = MINHEIGHT; |
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oursizhints.flags = PMinSize; |
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#endif |
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XSetNormalHints(ourdisplay, gwind, &oursizhints); |
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/* set GLX context */ |
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glXMakeCurrent(ourdisplay, gwind, gctx); |
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glEnable(GL_DEPTH_TEST); |
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glDepthFunc(GL_LEQUAL); |
216 |
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glShadeModel(GL_FLAT); |
216 |
> |
glShadeModel(GL_SMOOTH); |
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glDisable(GL_DITHER); |
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glDisable(GL_CULL_FACE); |
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glMatrixMode(GL_PROJECTION); |
152 |
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glOrtho(0., 1., 0., 1., -.01, 1.01); |
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glTranslated(0., 0., -1.01); |
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/* figure out sensible view */ |
220 |
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pwidth = (double)DisplayWidthMM(ourdisplay, ourscreen) / |
221 |
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DisplayWidth(ourdisplay, ourscreen); |
222 |
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pheight = (double)DisplayHeightMM(ourdisplay, ourscreen) / |
223 |
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DisplayHeight(ourdisplay, ourscreen); |
224 |
+ |
#ifdef STEREO |
225 |
+ |
pheight *= 2.; |
226 |
+ |
setstereobuf(STEREO_BUFFER_LEFT); |
227 |
+ |
#endif |
228 |
+ |
checkglerr("setting rendering parameters"); |
229 |
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copystruct(&odev.v, &stdview); |
230 |
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odev.v.type = VT_PER; |
231 |
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/* map the window */ |
232 |
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XMapWindow(ourdisplay, gwind); |
233 |
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dev_input(); /* sets size and view angles */ |
234 |
< |
/* allocate our leaf pile */ |
235 |
< |
if (!qtAllocLeaves(2 * DisplayWidth(ourdisplay,ourscreen) * |
236 |
< |
DisplayHeight(ourdisplay,ourscreen) / |
167 |
< |
(qtMinNodesiz*qtMinNodesiz))) |
234 |
> |
/* allocate our samples */ |
235 |
> |
if (!smInit(DisplayWidth(ourdisplay,ourscreen) * |
236 |
> |
DisplayHeight(ourdisplay,ourscreen) / 10)) |
237 |
|
error(SYSTEM, "insufficient memory for value storage"); |
238 |
+ |
mindpth = FHUGE; maxdpth = FTINY; |
239 |
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odev.name = id; |
240 |
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odev.ifd = ConnectionNumber(ourdisplay); |
171 |
– |
/* initialize cone array */ |
172 |
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initcones(); |
241 |
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} |
242 |
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|
243 |
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|
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dev_close() /* close our display and free resources */ |
245 |
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{ |
246 |
+ |
smInit(0); |
247 |
+ |
#ifdef DOBJ |
248 |
+ |
dobj_cleanup(); |
249 |
+ |
#endif |
250 |
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glXMakeCurrent(ourdisplay, None, NULL); |
251 |
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glXDestroyContext(ourdisplay, gctx); |
252 |
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XDestroyWindow(ourdisplay, gwind); |
253 |
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gwind = 0; |
254 |
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XCloseDisplay(ourdisplay); |
255 |
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ourdisplay = NULL; |
184 |
– |
qtFreeLeaves(); |
256 |
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tmDone(NULL); |
186 |
– |
freecones(); |
257 |
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odev.v.type = 0; |
258 |
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odev.hres = odev.vres = 0; |
259 |
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odev.ifd = -1; |
260 |
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} |
261 |
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|
262 |
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|
263 |
+ |
dev_clear() /* clear our representation */ |
264 |
+ |
{ |
265 |
+ |
smInit(rsL.max_samp); |
266 |
+ |
wipeclean(1); |
267 |
+ |
rayqleft = 0; /* hold off update */ |
268 |
+ |
} |
269 |
+ |
|
270 |
+ |
|
271 |
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int |
272 |
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dev_view(nv) /* assign new driver view */ |
273 |
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register VIEW *nv; |
274 |
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{ |
275 |
< |
if (nv->type == VT_PAR || /* check view legality */ |
275 |
> |
double d; |
276 |
> |
|
277 |
> |
if (nv->type != VT_PER || /* check view legality */ |
278 |
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nv->horiz > 160. || nv->vert > 160.) { |
279 |
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error(COMMAND, "illegal view type/angle"); |
280 |
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nv->type = odev.v.type; |
282 |
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nv->vert = odev.v.vert; |
283 |
|
return(0); |
284 |
|
} |
205 |
– |
if (nv->vfore > FTINY) { |
206 |
– |
error(COMMAND, "cannot handle fore clipping"); |
207 |
– |
nv->vfore = 0.; |
208 |
– |
return(0); |
209 |
– |
} |
285 |
|
if (nv != &odev.v) { |
286 |
< |
if (!FEQ(nv->horiz,odev.v.horiz) || /* resize window? */ |
286 |
> |
/* resize window? */ |
287 |
> |
if (!FEQ(nv->horiz,odev.v.horiz) || |
288 |
|
!FEQ(nv->vert,odev.v.vert)) { |
289 |
|
int dw = DisplayWidth(ourdisplay,ourscreen); |
290 |
|
int dh = DisplayHeight(ourdisplay,ourscreen); |
291 |
|
|
292 |
|
dw -= 25; /* for window frame */ |
293 |
|
dh -= 50; |
294 |
+ |
#ifdef STEREO |
295 |
+ |
dh /= 2; |
296 |
+ |
#endif |
297 |
|
odev.hres = 2.*VIEWDIST/pwidth * |
298 |
|
tan(PI/180./2.*nv->horiz); |
299 |
|
odev.vres = 2.*VIEWDIST/pheight * |
309 |
|
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
310 |
|
dev_input(); /* get resize event */ |
311 |
|
} |
312 |
< |
copystruct(&odev.v, nv); |
312 |
> |
copystruct(&odev.v, nv); /* setview() already called */ |
313 |
|
} |
314 |
< |
if (nxtzmax > FTINY) { |
315 |
< |
curzmax = nxtzmax; |
316 |
< |
nxtzmax = 0.; |
317 |
< |
} |
318 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
319 |
< |
qtReplant(); |
314 |
> |
#ifdef STEREO |
315 |
> |
copystruct(&vwright, nv); |
316 |
> |
d = eyesepdist / sqrt(nv->hn2); |
317 |
> |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
318 |
> |
/* setview(&vwright); -- Unnecessary */ |
319 |
> |
#endif |
320 |
> |
wipeclean(0); |
321 |
|
return(1); |
322 |
|
} |
323 |
|
|
324 |
|
|
325 |
+ |
dev_section(gfn, pfn) /* add octree for geometry rendering */ |
326 |
+ |
char *gfn, *pfn; |
327 |
+ |
{ |
328 |
+ |
/* unimplemented */ |
329 |
+ |
} |
330 |
+ |
|
331 |
+ |
|
332 |
+ |
dev_auxcom(cmd, args) /* process an auxiliary command */ |
333 |
+ |
char *cmd, *args; |
334 |
+ |
{ |
335 |
+ |
#ifdef DOBJ |
336 |
+ |
if (dobj_command(cmd, args) >= 0) |
337 |
+ |
return; |
338 |
+ |
#endif |
339 |
+ |
sprintf(errmsg, "%s: unknown command", cmd); |
340 |
+ |
error(COMMAND, errmsg); |
341 |
+ |
} |
342 |
+ |
|
343 |
+ |
|
344 |
+ |
VIEW * |
345 |
+ |
dev_auxview(n, hvres) /* return nth auxiliary view */ |
346 |
+ |
int n; |
347 |
+ |
int hvres[2]; |
348 |
+ |
{ |
349 |
+ |
hvres[0] = odev.hres; hvres[1] = odev.vres; |
350 |
+ |
if (n == 0) |
351 |
+ |
return(&odev.v); |
352 |
+ |
#ifdef STEREO |
353 |
+ |
if (n == 1) |
354 |
+ |
return(&vwright); |
355 |
+ |
#endif |
356 |
+ |
return(NULL); |
357 |
+ |
} |
358 |
+ |
|
359 |
+ |
|
360 |
|
int |
361 |
|
dev_input() /* get X11 input */ |
362 |
|
{ |
365 |
|
do |
366 |
|
getevent(); |
367 |
|
|
368 |
< |
while (XQLength(ourdisplay) > 0); |
368 |
> |
while (XPending(ourdisplay) > 0); |
369 |
|
|
370 |
+ |
odev.inpready = 0; |
371 |
+ |
|
372 |
|
return(inpresflags); |
373 |
|
} |
374 |
|
|
375 |
|
|
376 |
+ |
dev_value(c, d, p) /* add a pixel value to our mesh */ |
377 |
+ |
COLR c; |
378 |
+ |
FVECT d, p; |
379 |
+ |
{ |
380 |
+ |
double depth; |
381 |
+ |
#ifdef DOBJ |
382 |
+ |
if (dobj_lightsamp != NULL) { /* in light source sampling */ |
383 |
+ |
(*dobj_lightsamp)(c, d, p); |
384 |
+ |
return; |
385 |
+ |
} |
386 |
+ |
#endif |
387 |
+ |
if (p != NULL) { /* add depth to our range */ |
388 |
+ |
depth = (p[0] - odev.v.vp[0])*d[0] + |
389 |
+ |
(p[1] - odev.v.vp[1])*d[1] + |
390 |
+ |
(p[2] - odev.v.vp[2])*d[2]; |
391 |
+ |
if (depth > FTINY) { |
392 |
+ |
if (depth < mindpth) |
393 |
+ |
mindpth = depth; |
394 |
+ |
if (depth > maxdpth) |
395 |
+ |
maxdpth = depth; |
396 |
+ |
} |
397 |
+ |
} |
398 |
+ |
smNewSamp(c, d, p); /* add to display representation */ |
399 |
+ |
if (!--rayqleft) |
400 |
+ |
dev_flush(); /* flush output */ |
401 |
+ |
} |
402 |
+ |
|
403 |
+ |
|
404 |
|
int |
405 |
|
dev_flush() /* flush output */ |
406 |
|
{ |
407 |
< |
qtUpdate(); |
408 |
< |
glFlush(); |
409 |
< |
return(XPending(ourdisplay)); |
407 |
> |
if (mapped) { |
408 |
> |
#ifdef STEREO |
409 |
> |
pushright(); /* update right eye */ |
410 |
> |
smUpdate(&vwright, MAXQUALITY); |
411 |
> |
#ifdef DOBJ |
412 |
> |
dobj_render(); /* usually in foreground */ |
413 |
> |
#endif |
414 |
> |
popright(); /* update left eye */ |
415 |
> |
#endif |
416 |
> |
smUpdate(&odev.v, MAXQUALITY); |
417 |
> |
checkglerr("rendering mesh"); |
418 |
> |
#ifdef DOBJ |
419 |
> |
dobj_render(); |
420 |
> |
#endif |
421 |
> |
glFlush(); /* flush OGL */ |
422 |
> |
} |
423 |
> |
rayqleft = RAYQLEN; |
424 |
> |
/* flush X11 and return # pending */ |
425 |
> |
return(odev.inpready = XPending(ourdisplay)); |
426 |
|
} |
427 |
|
|
428 |
|
|
429 |
< |
dev_cone(rgb, ip, rad) /* render a cone in view coordinates */ |
430 |
< |
BYTE rgb[3]; |
270 |
< |
FVECT ip; |
271 |
< |
double rad; |
429 |
> |
checkglerr(where) /* check for GL or GLU error */ |
430 |
> |
char *where; |
431 |
|
{ |
432 |
< |
register int ci, j; |
433 |
< |
double apexh, basez; |
434 |
< |
/* compute apex height (0. to 1.) */ |
435 |
< |
if (ip[2] > 1e6) |
436 |
< |
apexh = 1. - 1./DEPTHFACT; |
437 |
< |
else { |
279 |
< |
if (ip[2] > nxtzmax) |
280 |
< |
nxtzmax = ip[2]; |
281 |
< |
if (ip[2] >= curzmax) |
282 |
< |
apexh = 1. - 1./DEPTHFACT; |
283 |
< |
else |
284 |
< |
apexh = 1. - ip[2]/(curzmax*DEPTHFACT); |
432 |
> |
register GLenum errcode; |
433 |
> |
|
434 |
> |
while ((errcode = glGetError()) != GL_NO_ERROR) { |
435 |
> |
sprintf(errmsg, "OpenGL error %s: %s", |
436 |
> |
where, gluErrorString(errcode)); |
437 |
> |
error(WARNING, errmsg); |
438 |
|
} |
286 |
– |
rad *= 1.25; /* find conservative cone match */ |
287 |
– |
for (ci = 0; ci < MAXCONE-1; ci++) |
288 |
– |
if (cone[ci].rad >= rad) |
289 |
– |
break; |
290 |
– |
/* draw it */ |
291 |
– |
glColor3ub(rgb[0], rgb[1], rgb[2]); |
292 |
– |
glBegin(GL_TRIANGLE_FAN); |
293 |
– |
glVertex3d(ip[0], ip[1], apexh); /* start with apex */ |
294 |
– |
basez = apexh*cone[ci].va[0][2]; /* base z's all the same */ |
295 |
– |
for (j = 0; j < cone[ci].nverts; j++) /* draw each face */ |
296 |
– |
glVertex3d(ip[0]+cone[ci].va[j][0], ip[1]+cone[ci].va[j][1], |
297 |
– |
basez); |
298 |
– |
/* connect last to first */ |
299 |
– |
glVertex3d(ip[0]+cone[ci].va[0][0], ip[1]+cone[ci].va[0][1], basez); |
300 |
– |
glEnd(); /* all done */ |
439 |
|
} |
440 |
|
|
441 |
|
|
442 |
+ |
#ifdef STEREO |
443 |
+ |
static |
444 |
+ |
pushright() /* push on right view */ |
445 |
+ |
{ |
446 |
+ |
double d; |
447 |
+ |
|
448 |
+ |
setstereobuf(STEREO_BUFFER_RIGHT); |
449 |
+ |
glMatrixMode(GL_MODELVIEW); |
450 |
+ |
glPushMatrix(); |
451 |
+ |
d = -eyesepdist / sqrt(odev.v.hn2); |
452 |
+ |
glTranslated(d*odev.v.hvec[0], d*odev.v.hvec[1], d*odev.v.hvec[2]); |
453 |
+ |
checkglerr("setting right view"); |
454 |
+ |
} |
455 |
+ |
|
456 |
+ |
|
457 |
+ |
static |
458 |
+ |
popright() /* pop off right view */ |
459 |
+ |
{ |
460 |
+ |
glMatrixMode(GL_MODELVIEW); |
461 |
+ |
glPopMatrix(); |
462 |
+ |
setstereobuf(STEREO_BUFFER_LEFT); |
463 |
+ |
} |
464 |
+ |
#endif |
465 |
+ |
|
466 |
+ |
|
467 |
|
static int |
468 |
|
mytmflags() /* figure out tone mapping flags */ |
469 |
|
{ |
475 |
|
tail = cp+1; |
476 |
|
for (cp = tail; *cp && *cp != '.'; cp++) |
477 |
|
; |
478 |
< |
if (cp-tail == 3 && !strncmp(tail, "glx", 3)) |
479 |
< |
return(TM_F_CAMERA); |
480 |
< |
if (cp-tail == 4 && !strncmp(tail, "glxh", 4)) |
481 |
< |
return(TM_F_HUMAN); |
319 |
< |
error(USER, "illegal driver name"); |
478 |
> |
if (cp > tail && cp[-1] == 'h') |
479 |
> |
return(TM_F_HUMAN|TM_F_NOSTDERR); |
480 |
> |
else |
481 |
> |
return(TM_F_CAMERA|TM_F_NOSTDERR); |
482 |
|
} |
483 |
|
|
484 |
|
|
485 |
|
static |
324 |
– |
initcones() /* initialize cone vertices */ |
325 |
– |
{ |
326 |
– |
register int i, j; |
327 |
– |
double minrad, d; |
328 |
– |
|
329 |
– |
if (cone[0].nverts) |
330 |
– |
freecones(); |
331 |
– |
minrad = 2.*qtMinNodesiz/(double)(DisplayWidth(ourdisplay,ourscreen) + |
332 |
– |
DisplayHeight(ourdisplay,ourscreen)); |
333 |
– |
for (i = 0; i < MAXCONE; i++) { |
334 |
– |
d = (double)i/(MAXCONE-1); d *= d; /* x^2 distribution */ |
335 |
– |
cone[i].rad = minrad + (1.-minrad)*d; |
336 |
– |
cone[i].nverts = MINVERT + (MAXVERT-MINVERT)*d; |
337 |
– |
cone[i].va = (FVECT *)malloc(cone[i].nverts*sizeof(FVECT)); |
338 |
– |
if (cone[i].va == NULL) |
339 |
– |
error(SYSTEM, "out of memory in initcones"); |
340 |
– |
for (j = cone[i].nverts; j--; ) { |
341 |
– |
d = 2.*PI * (j+.5) / (cone[i].nverts); |
342 |
– |
cone[i].va[j][0] = cos(d) * cone[i].rad; |
343 |
– |
cone[i].va[j][1] = sin(d) * cone[i].rad; |
344 |
– |
cone[i].va[j][2] = 1. - cone[i].rad; |
345 |
– |
} |
346 |
– |
} |
347 |
– |
} |
348 |
– |
|
349 |
– |
|
350 |
– |
static |
351 |
– |
freecones() /* free cone vertices */ |
352 |
– |
{ |
353 |
– |
register int i; |
354 |
– |
|
355 |
– |
for (i = MAXCONE; i--; ) |
356 |
– |
if (cone[i].nverts) { |
357 |
– |
free((char *)cone[i].va); |
358 |
– |
cone[i].va = NULL; |
359 |
– |
cone[i].nverts = 0; |
360 |
– |
} |
361 |
– |
} |
362 |
– |
|
363 |
– |
|
364 |
– |
static |
486 |
|
getevent() /* get next event */ |
487 |
|
{ |
488 |
|
XNextEvent(ourdisplay, levptr(XEvent)); |
503 |
|
getkey(levptr(XKeyPressedEvent)); |
504 |
|
break; |
505 |
|
case ButtonPress: |
506 |
< |
getmove(levptr(XButtonPressedEvent)); |
506 |
> |
if (FRAMESTATE(levptr(XButtonPressedEvent)->state)) |
507 |
> |
getframe(levptr(XButtonPressedEvent)); |
508 |
> |
else |
509 |
> |
getmove(levptr(XButtonPressedEvent)); |
510 |
|
break; |
511 |
|
} |
512 |
|
} |
522 |
|
|
523 |
|
|
524 |
|
static |
525 |
< |
draw_grids() /* draw holodeck section grids */ |
525 |
> |
draw_grids(fore) /* draw holodeck section grids */ |
526 |
> |
int fore; |
527 |
|
{ |
528 |
< |
static BYTE gridrgba[4] = {0x0, 0xff, 0xff, 0x00}; |
529 |
< |
double xmin, xmax, ymin, ymax, zmin, zmax; |
530 |
< |
double d, cx, sx, crad; |
531 |
< |
FVECT vx, vy; |
407 |
< |
register int i, j; |
408 |
< |
/* can we even do it? */ |
409 |
< |
if (!mapped || odev.v.type != VT_PER) |
410 |
< |
return; |
411 |
< |
/* compute view frustum */ |
412 |
< |
if (normalize(odev.v.vdir) == 0.0) |
413 |
< |
return; |
414 |
< |
zmin = 0.01; |
415 |
< |
zmax = 10000.; |
416 |
< |
if (odev.v.vfore > FTINY) |
417 |
< |
zmin = odev.v.vfore; |
418 |
< |
if (odev.v.vaft > FTINY) |
419 |
< |
zmax = odev.v.vaft; |
420 |
< |
xmax = zmin * tan(PI/180./2. * odev.v.horiz); |
421 |
< |
xmin = -xmax; |
422 |
< |
d = odev.v.hoff * (xmax - xmin); |
423 |
< |
xmin += d; xmax += d; |
424 |
< |
ymax = zmin * tan(PI/180./2. * odev.v.vert); |
425 |
< |
ymin = -ymax; |
426 |
< |
d = odev.v.voff * (ymax - ymin); |
427 |
< |
ymin += d; ymax += d; |
428 |
< |
/* set view matrix */ |
429 |
< |
glMatrixMode(GL_PROJECTION); |
430 |
< |
glPushMatrix(); |
431 |
< |
glLoadIdentity(); |
432 |
< |
glFrustum(xmin, xmax, ymin, ymax, zmin, zmax); |
433 |
< |
gluLookAt(odev.v.vp[0], odev.v.vp[1], odev.v.vp[2], |
434 |
< |
odev.v.vp[0] + odev.v.vdir[0], |
435 |
< |
odev.v.vp[1] + odev.v.vdir[1], |
436 |
< |
odev.v.vp[2] + odev.v.vdir[2], |
437 |
< |
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
438 |
< |
glDisable(GL_DEPTH_TEST); /* write no depth values */ |
439 |
< |
glColor4ub(gridrgba[0], gridrgba[1], gridrgba[2], gridrgba[3]); |
528 |
> |
if (fore) |
529 |
> |
glColor4ub(0, 255, 255, 0); |
530 |
> |
else |
531 |
> |
glColor4ub(0, 0, 0, 0); |
532 |
|
glBegin(GL_LINES); /* draw each grid line */ |
533 |
|
gridlines(draw3dline); |
534 |
|
glEnd(); |
535 |
< |
glEnable(GL_DEPTH_TEST); /* restore rendering params */ |
444 |
< |
glPopMatrix(); |
535 |
> |
checkglerr("drawing grid lines"); |
536 |
|
} |
537 |
|
|
538 |
+ |
static double |
539 |
+ |
getdistance(dx, dy, direc) /* distance from fore plane along view ray */ |
540 |
+ |
int dx, dy; |
541 |
+ |
FVECT direc; |
542 |
+ |
{ |
543 |
+ |
GLfloat gldepth; |
544 |
+ |
double dist; |
545 |
|
|
546 |
+ |
if (dx<0 | dx>=odev.hres | dy<0 | dy>=odev.vres) |
547 |
+ |
return(FHUGE); |
548 |
+ |
glReadPixels(dx,dy, 1,1, GL_DEPTH_COMPONENT,GL_FLOAT, &gldepth); |
549 |
+ |
dist = mapdepth(gldepth); |
550 |
+ |
if (dist >= .99*FHUGE) |
551 |
+ |
return(FHUGE); |
552 |
+ |
return((dist-odev.v.vfore)/DOT(direc,odev.v.vdir)); |
553 |
+ |
} |
554 |
+ |
|
555 |
+ |
|
556 |
|
static |
557 |
|
moveview(dx, dy, mov, orb) /* move our view */ |
558 |
|
int dx, dy, mov, orb; |
559 |
|
{ |
560 |
|
VIEW nv; |
561 |
< |
FVECT odir, v1; |
562 |
< |
double d; |
561 |
> |
FVECT odir, v1, wip; |
562 |
> |
double d,d1; |
563 |
|
register int li; |
564 |
|
/* start with old view */ |
565 |
|
copystruct(&nv, &odev.v); |
566 |
< |
/* change view direction */ |
567 |
< |
if (mov | orb) { |
568 |
< |
if ((li = qtFindLeaf(dx, dy)) < 0) |
569 |
< |
return(0); /* not on window */ |
570 |
< |
VSUM(odir, qtL.wp[li], nv.vp, -1.); |
571 |
< |
} else { |
572 |
< |
if (viewray(nv.vp, nv.vdir, &odev.v, |
573 |
< |
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
574 |
< |
return(0); /* outside view */ |
575 |
< |
} |
566 |
> |
/* orient our motion */ |
567 |
> |
if (viewray(v1, odir, &odev.v, |
568 |
> |
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
569 |
> |
return(0); /* outside view */ |
570 |
> |
if (mov | orb) { /* moving relative to geometry */ |
571 |
> |
d = getdistance(dx, dy, odir);/*distance from front plane */ |
572 |
> |
#ifdef DOBJ |
573 |
> |
d1 = dobj_trace(NULL, v1, odir); /* check objects */ |
574 |
> |
/* check holodeck */ |
575 |
> |
if (d1 < d) |
576 |
> |
d = d1; |
577 |
> |
#endif |
578 |
> |
if (d >= .99*FHUGE) |
579 |
> |
d = 0.5*(dev_zmax+dev_zmin); /* just guess */ |
580 |
> |
VSUM(wip, v1, odir, d); |
581 |
> |
VSUB(odir, wip, odev.v.vp); |
582 |
> |
#if 0 |
583 |
> |
fprintf(stderr, "moveview: hit %s at (%f,%f,%f) (t=%f)\n", |
584 |
> |
li < 0 ? "object" : "mesh", |
585 |
> |
wip[0], wip[1], wip[2], |
586 |
> |
(wip[0]-odev.v.vp[0])*odir[0] + |
587 |
> |
(wip[1]-odev.v.vp[1])*odir[1] + |
588 |
> |
(wip[2]-odev.v.vp[2])*odir[2]); |
589 |
> |
#endif |
590 |
> |
} else /* panning with constant viewpoint */ |
591 |
> |
VCOPY(nv.vdir, odir); |
592 |
|
if (orb && mov) { /* orbit left/right */ |
593 |
|
spinvector(odir, odir, nv.vup, d=MOVDEG*PI/180.*mov); |
594 |
< |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
594 |
> |
VSUM(nv.vp, wip, odir, -1.); |
595 |
|
spinvector(nv.vdir, nv.vdir, nv.vup, d); |
596 |
|
} else if (orb) { /* orbit up/down */ |
597 |
|
fcross(v1, odir, nv.vup); |
598 |
|
if (normalize(v1) == 0.) |
599 |
|
return(0); |
600 |
|
spinvector(odir, odir, v1, d=MOVDEG*PI/180.*orb); |
601 |
< |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
601 |
> |
VSUM(nv.vp, wip, odir, -1.); |
602 |
|
spinvector(nv.vdir, nv.vdir, v1, d); |
603 |
|
} else if (mov) { /* move forward/backward */ |
604 |
|
d = MOVPCT/100. * mov; |
606 |
|
} |
607 |
|
if (!mov ^ !orb && headlocked) { /* restore head height */ |
608 |
|
VSUM(v1, odev.v.vp, nv.vp, -1.); |
609 |
< |
d = DOT(v1, odev.v.vup); |
609 |
> |
d = DOT(v1, nv.vup); |
610 |
|
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
611 |
|
} |
612 |
|
if (setview(&nv) != NULL) |
618 |
|
|
619 |
|
|
620 |
|
static |
621 |
+ |
getframe(ebut) /* get focus frame */ |
622 |
+ |
XButtonPressedEvent *ebut; |
623 |
+ |
{ |
624 |
+ |
int startx = ebut->x, starty = ebut->y; |
625 |
+ |
int endx, endy; |
626 |
+ |
|
627 |
+ |
XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent)); |
628 |
+ |
endx = levptr(XButtonReleasedEvent)->x; |
629 |
+ |
endy = levptr(XButtonReleasedEvent)->y; |
630 |
+ |
if (endx == startx | endy == starty) { |
631 |
+ |
XBell(ourdisplay, 0); |
632 |
+ |
return; |
633 |
+ |
} |
634 |
+ |
if (endx < startx) {register int c = endx; endx = startx; startx = c;} |
635 |
+ |
if (endy < starty) {register int c = endy; endy = starty; starty = c;} |
636 |
+ |
sprintf(odev_args, "%.3f %.3f %.3f %.3f", |
637 |
+ |
(startx+.5)/odev.hres, 1.-(endy+.5)/odev.vres, |
638 |
+ |
(endx+.5)/odev.hres, 1.-(starty+.5)/odev.vres); |
639 |
+ |
inpresflags |= DFL(DC_FOCUS); |
640 |
+ |
} |
641 |
+ |
|
642 |
+ |
|
643 |
+ |
static |
644 |
|
getmove(ebut) /* get view change */ |
645 |
|
XButtonPressedEvent *ebut; |
646 |
|
{ |
647 |
|
int movdir = MOVDIR(ebut->button); |
648 |
|
int movorb = MOVORB(ebut->state); |
649 |
< |
int oldnodesiz = qtMinNodesiz; |
649 |
> |
int qlevel = MAXQUALITY-1; |
650 |
> |
time_t lasttime, thistime; |
651 |
> |
int nframes; |
652 |
|
Window rootw, childw; |
653 |
|
int rootx, rooty, wx, wy; |
654 |
|
unsigned int statemask; |
655 |
|
|
656 |
< |
qtMinNodesiz = 24; /* accelerate update rate */ |
508 |
< |
XNoOp(ourdisplay); |
656 |
> |
XNoOp(ourdisplay); /* makes sure we're not idle */ |
657 |
|
|
658 |
+ |
nframes = 0; |
659 |
|
while (!XCheckMaskEvent(ourdisplay, |
660 |
|
ButtonReleaseMask, levptr(XEvent))) { |
661 |
< |
|
661 |
> |
/* get cursor position */ |
662 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
663 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
664 |
|
break; /* on another screen */ |
665 |
|
|
666 |
+ |
draw_grids(0); /* clear old grid lines */ |
667 |
+ |
#ifdef STEREO |
668 |
+ |
pushright(); draw_grids(0); popright(); |
669 |
+ |
#endif |
670 |
+ |
/* compute view motion */ |
671 |
|
if (!moveview(wx, odev.vres-1-wy, movdir, movorb)) { |
672 |
|
sleep(1); |
673 |
< |
continue; |
673 |
> |
lasttime++; |
674 |
> |
continue; /* cursor in bad place */ |
675 |
|
} |
676 |
< |
glClear(GL_COLOR_BUFFER_BIT); |
677 |
< |
qtUpdate(); |
678 |
< |
draw_grids(); |
676 |
> |
draw_grids(1); /* redraw grid */ |
677 |
> |
#ifdef STEREO |
678 |
> |
pushright(); |
679 |
> |
draw_grids(1); |
680 |
> |
smUpdate(&vwright, qlevel); |
681 |
> |
#ifdef DOBJ |
682 |
> |
dobj_render(); |
683 |
> |
#endif |
684 |
> |
popright(); |
685 |
> |
#endif |
686 |
> |
/* redraw mesh */ |
687 |
> |
smUpdate(&odev.v, qlevel); |
688 |
> |
#ifdef DOBJ |
689 |
> |
dobj_render(); /* redraw object */ |
690 |
> |
#endif |
691 |
|
glFlush(); |
692 |
+ |
/* figure out good quality level */ |
693 |
+ |
if (!nframes++) { /* ignore first frame */ |
694 |
+ |
lasttime = time(0); |
695 |
+ |
continue; |
696 |
+ |
} |
697 |
+ |
thistime = time(0); |
698 |
+ |
if (thistime - lasttime >= 6 || |
699 |
+ |
nframes > (int)(3*3*TARGETFPS)) { |
700 |
+ |
qlevel = thistime<=lasttime ? 3*MAXQUALITY : |
701 |
+ |
(int)((double)nframes/(thistime-lasttime) |
702 |
+ |
/ TARGETFPS * qlevel + 0.5); |
703 |
+ |
nframes = 0; |
704 |
+ |
if (qlevel >= MAXQUALITY) { |
705 |
+ |
if (qlevel >= 3*MAXQUALITY) { /* brakes!! */ |
706 |
+ |
sleep(1); |
707 |
+ |
lasttime++; |
708 |
+ |
} |
709 |
+ |
qlevel = MAXQUALITY-1; |
710 |
+ |
} else if (qlevel < 1) |
711 |
+ |
qlevel = 1; |
712 |
+ |
} |
713 |
|
} |
714 |
|
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
715 |
|
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
717 |
|
wy = levptr(XButtonReleasedEvent)->y; |
718 |
|
moveview(wx, odev.vres-1-wy, movdir, movorb); |
719 |
|
} |
720 |
< |
dev_flush(); |
720 |
> |
} |
721 |
|
|
722 |
< |
qtMinNodesiz = oldnodesiz; /* restore quadtree resolution */ |
722 |
> |
|
723 |
> |
static |
724 |
> |
setglpersp(vp) /* set perspective view in GL */ |
725 |
> |
register VIEW *vp; |
726 |
> |
{ |
727 |
> |
double d, xmin, xmax, ymin, ymax; |
728 |
> |
|
729 |
> |
if (mindpth >= maxdpth) { |
730 |
> |
dev_zmin = 1.; |
731 |
> |
dev_zmax = 100.; |
732 |
> |
} else { |
733 |
> |
dev_zmin = 0.1*mindpth; |
734 |
> |
dev_zmax = 5.0*maxdpth; |
735 |
> |
} |
736 |
> |
if (odev.v.vfore > FTINY) |
737 |
> |
dev_zmin = odev.v.vfore; |
738 |
> |
if (odev.v.vaft > FTINY) |
739 |
> |
dev_zmax = odev.v.vaft; |
740 |
> |
if (dev_zmin < dev_zmax/500.) |
741 |
> |
dev_zmin = dev_zmax/500.; |
742 |
> |
xmax = dev_zmin * tan(PI/180./2. * odev.v.horiz); |
743 |
> |
xmin = -xmax; |
744 |
> |
d = odev.v.hoff * (xmax - xmin); |
745 |
> |
xmin += d; xmax += d; |
746 |
> |
ymax = dev_zmin * tan(PI/180./2. * odev.v.vert); |
747 |
> |
ymin = -ymax; |
748 |
> |
d = odev.v.voff * (ymax - ymin); |
749 |
> |
ymin += d; ymax += d; |
750 |
> |
/* set view matrix */ |
751 |
> |
glMatrixMode(GL_PROJECTION); |
752 |
> |
glLoadIdentity(); |
753 |
> |
glFrustum(xmin, xmax, ymin, ymax, dev_zmin, dev_zmax); |
754 |
> |
gluLookAt(odev.v.vp[0], odev.v.vp[1], odev.v.vp[2], |
755 |
> |
odev.v.vp[0] + odev.v.vdir[0], |
756 |
> |
odev.v.vp[1] + odev.v.vdir[1], |
757 |
> |
odev.v.vp[2] + odev.v.vdir[2], |
758 |
> |
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
759 |
> |
checkglerr("setting perspective view"); |
760 |
|
} |
761 |
|
|
762 |
|
|
763 |
|
static |
764 |
+ |
wipeclean(tmflag) /* prepare for redraw */ |
765 |
+ |
int tmflag; |
766 |
+ |
{ |
767 |
+ |
/* clear depth buffer */ |
768 |
+ |
#ifdef STEREO |
769 |
+ |
setstereobuf(STEREO_BUFFER_RIGHT); |
770 |
+ |
glClear(GL_DEPTH_BUFFER_BIT); |
771 |
+ |
setstereobuf(STEREO_BUFFER_LEFT); |
772 |
+ |
#endif |
773 |
+ |
glClear(GL_DEPTH_BUFFER_BIT); |
774 |
+ |
smClean(tmflag); /* reset drawing routines */ |
775 |
+ |
setglpersp(&odev.v); /* reset view & clipping planes */ |
776 |
+ |
} |
777 |
+ |
|
778 |
+ |
|
779 |
+ |
static |
780 |
|
getkey(ekey) /* get input key */ |
781 |
|
register XKeyPressedEvent *ekey; |
782 |
|
{ |
783 |
+ |
Window rootw, childw; |
784 |
+ |
int rootx, rooty, wx, wy; |
785 |
+ |
unsigned int statemask; |
786 |
|
int n; |
787 |
|
char buf[8]; |
788 |
|
|
805 |
|
case 'v': /* spit out view */ |
806 |
|
inpresflags |= DFL(DC_GETVIEW); |
807 |
|
return; |
808 |
+ |
case 'f': /* frame view position */ |
809 |
+ |
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
810 |
+ |
&rootx, &rooty, &wx, &wy, &statemask)) |
811 |
+ |
return; /* on another screen */ |
812 |
+ |
sprintf(odev_args, "%.4f %.4f", (wx+.5)/odev.hres, |
813 |
+ |
1.-(wy+.5)/odev.vres); |
814 |
+ |
inpresflags |= DFL(DC_FOCUS); |
815 |
+ |
return; |
816 |
+ |
case 'F': /* unfocus */ |
817 |
+ |
odev_args[0] = '\0'; |
818 |
+ |
inpresflags |= DFL(DC_FOCUS); |
819 |
+ |
return; |
820 |
|
case '\n': |
821 |
|
case '\r': /* resume computation */ |
822 |
|
inpresflags |= DFL(DC_RESUME); |
823 |
|
return; |
824 |
|
case CTRL('R'): /* redraw screen */ |
825 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
570 |
< |
qtRedraw(0, 0, odev.hres, odev.vres); |
825 |
> |
wipeclean(1); |
826 |
|
return; |
827 |
|
case CTRL('L'): /* refresh from server */ |
828 |
|
if (inpresflags & DFL(DC_REDRAW)) |
829 |
|
return; |
830 |
+ |
setglpersp(&odev.v); /* reset clipping planes */ |
831 |
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
832 |
< |
draw_grids(); |
832 |
> |
glDisable(GL_DEPTH_TEST); /* so grids will clear */ |
833 |
> |
draw_grids(1); |
834 |
> |
#ifdef STEREO |
835 |
> |
pushright(); |
836 |
> |
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
837 |
> |
draw_grids(1); |
838 |
> |
popright(); |
839 |
> |
#endif |
840 |
> |
glEnable(GL_DEPTH_TEST); |
841 |
|
glFlush(); |
842 |
< |
qtCompost(100); /* get rid of old values */ |
842 |
> |
smInit(rsL.max_samp); /* get rid of old values */ |
843 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
844 |
+ |
rayqleft = 0; /* hold off update */ |
845 |
|
return; |
846 |
|
case 'K': /* kill rtrace process(es) */ |
847 |
|
inpresflags |= DFL(DC_KILL); |
866 |
|
fixwindow(eexp) /* repair damage to window */ |
867 |
|
register XExposeEvent *eexp; |
868 |
|
{ |
869 |
< |
int xmin, xmax, ymin, ymax; |
605 |
< |
|
606 |
< |
if (odev.hres == 0 || odev.vres == 0) /* first exposure */ |
869 |
> |
if (odev.hres == 0 | odev.vres == 0) { /* first exposure */ |
870 |
|
resizewindow((XConfigureEvent *)eexp); |
871 |
< |
xmin = eexp->x; xmax = eexp->x + eexp->width; |
872 |
< |
ymin = odev.vres - eexp->y - eexp->height; ymax = odev.vres - eexp->y; |
873 |
< |
/* clear portion of depth */ |
874 |
< |
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); |
875 |
< |
glDepthFunc(GL_ALWAYS); |
613 |
< |
glBegin(GL_POLYGON); |
614 |
< |
glVertex3d((double)xmin/odev.hres, (double)ymin/odev.vres, 0.); |
615 |
< |
glVertex3d((double)xmax/odev.hres, (double)ymin/odev.vres, 0.); |
616 |
< |
glVertex3d((double)xmax/odev.hres, (double)ymax/odev.vres, 0.); |
617 |
< |
glVertex3d((double)xmin/odev.hres, (double)ymax/odev.vres, 0.); |
618 |
< |
glEnd(); |
619 |
< |
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); |
620 |
< |
glDepthFunc(GL_LEQUAL); |
621 |
< |
qtRedraw(xmin, ymin, xmax, ymax); |
871 |
> |
return; |
872 |
> |
} |
873 |
> |
if (eexp->count) /* wait for final exposure */ |
874 |
> |
return; |
875 |
> |
wipeclean(0); /* clear depth */ |
876 |
|
} |
877 |
|
|
878 |
|
|