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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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* 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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#include "rhd_sample.h" |
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|
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#include <GL/glx.h> |
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#include <sys/types.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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#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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#include "x11icon.h" |
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|
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#ifndef RAYQLEN |
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#define RAYQLEN 250 /* 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 MOVPCT 7 /* percent distance to move /frame */ |
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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 4.0 /* 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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static VIEW vwright; /* right eye view */ |
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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(), 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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|
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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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qtDepthEps = 0.07; |
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/* check for unsupported stereo */ |
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#ifdef NOSTEREO |
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error(USER, "stereo display driver unavailable"); |
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#endif |
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/* open display server */ |
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ourdisplay = XOpenDisplay(NULL); |
131 |
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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; |
138 |
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case STEREO_OFF: |
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error(USER, |
140 |
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"wrong video mode: run \"/usr/gfx/setmon -n STR_TOP\" first"); |
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case X_STEREO_UNSUPPORTED: |
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error(USER, "stereo mode not supported on this screen"); |
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default: |
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error(INTERNAL, "unknown stereo mode"); |
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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); |
149 |
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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 */ |
154 |
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if ((gv = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
155 |
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|| (gv = getenv("DISPLAY_GAMMA")) != NULL) |
156 |
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gamval = atof(gv); |
157 |
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if (tmInit(mytmflags(), stdprims, gamval) == NULL) |
154 |
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if ((ev = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
155 |
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|| (ev = getenv("DISPLAY_GAMMA")) != NULL) |
156 |
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gamval = atof(ev); |
157 |
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if ((ev = getenv("DISPLAY_PRIMARIES")) != NULL && |
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sscanf(ev, "%f %f %f %f %f %f %f %f", |
159 |
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&myprims[RED][CIEX],&myprims[RED][CIEY], |
160 |
> |
&myprims[GRN][CIEX],&myprims[GRN][CIEY], |
161 |
> |
&myprims[BLU][CIEX],&myprims[BLU][CIEY], |
162 |
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&myprims[WHT][CIEX],&myprims[WHT][CIEY]) >= 6) |
163 |
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dpri = myprims; |
164 |
> |
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) - |
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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); |
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glShadeModel(GL_FLAT); |
207 |
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glShadeModel(GL_SMOOTH); |
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glDisable(GL_DITHER); |
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glDisable(GL_CULL_FACE); |
152 |
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glMatrixMode(GL_PROJECTION); |
153 |
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glOrtho(0., 1., 0., 1., -.01, 1.01); |
154 |
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glTranslated(0., 0., -1.01); |
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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) / |
214 |
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DisplayHeight(ourdisplay, ourscreen); |
215 |
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#ifdef STEREO |
216 |
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pheight *= 2.; |
217 |
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setstereobuf(STEREO_BUFFER_LEFT); |
218 |
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#endif |
219 |
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copystruct(&odev.v, &stdview); |
220 |
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odev.v.type = VT_PER; |
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/* map the window */ |
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XMapWindow(ourdisplay, gwind); |
223 |
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dev_input(); /* sets size and view angles */ |
224 |
< |
/* allocate our leaf pile */ |
225 |
< |
if (!qtAllocLeaves(DisplayWidth(ourdisplay,ourscreen) * |
226 |
< |
DisplayHeight(ourdisplay,ourscreen) / |
168 |
< |
(qtMinNodesiz*qtMinNodesiz))) |
224 |
> |
/* allocate our samples */ |
225 |
> |
if (!smInit(DisplayWidth(ourdisplay,ourscreen) * |
226 |
> |
DisplayHeight(ourdisplay,ourscreen) / 10)) |
227 |
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error(SYSTEM, "insufficient memory for value storage"); |
228 |
+ |
mindpth = FHUGE; maxdpth = FTINY; |
229 |
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odev.name = id; |
230 |
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odev.ifd = ConnectionNumber(ourdisplay); |
172 |
– |
/* initialize cone array */ |
173 |
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initcones(); |
231 |
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} |
232 |
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|
233 |
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|
234 |
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dev_close() /* close our display and free resources */ |
235 |
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{ |
236 |
+ |
smInit(0); |
237 |
+ |
#ifdef DOBJ |
238 |
+ |
dobj_cleanup(); |
239 |
+ |
#endif |
240 |
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glXMakeCurrent(ourdisplay, None, NULL); |
241 |
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glXDestroyContext(ourdisplay, gctx); |
242 |
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XDestroyWindow(ourdisplay, gwind); |
243 |
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gwind = 0; |
244 |
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XCloseDisplay(ourdisplay); |
245 |
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ourdisplay = NULL; |
185 |
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qtFreeLeaves(); |
246 |
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tmDone(NULL); |
187 |
– |
freecones(); |
247 |
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odev.v.type = 0; |
248 |
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odev.hres = odev.vres = 0; |
249 |
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odev.ifd = -1; |
250 |
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} |
251 |
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|
252 |
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|
253 |
+ |
dev_clear() /* clear our representation */ |
254 |
+ |
{ |
255 |
+ |
smInit(rsL.max_samp); |
256 |
+ |
wipeclean(); |
257 |
+ |
rayqleft = 0; /* hold off update */ |
258 |
+ |
} |
259 |
+ |
|
260 |
+ |
|
261 |
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int |
262 |
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dev_view(nv) /* assign new driver view */ |
263 |
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register VIEW *nv; |
264 |
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{ |
265 |
< |
if (nv->type == VT_PAR || /* check view legality */ |
265 |
> |
double d; |
266 |
> |
|
267 |
> |
if (nv->type != VT_PER || /* check view legality */ |
268 |
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nv->horiz > 160. || nv->vert > 160.) { |
269 |
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error(COMMAND, "illegal view type/angle"); |
270 |
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nv->type = odev.v.type; |
272 |
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nv->vert = odev.v.vert; |
273 |
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return(0); |
274 |
|
} |
275 |
< |
if (nv->vfore > FTINY) { |
276 |
< |
error(COMMAND, "cannot handle fore clipping"); |
277 |
< |
nv->vfore = 0.; |
278 |
< |
return(0); |
279 |
< |
} |
211 |
< |
if (nv != &odev.v) { |
212 |
< |
if (!FEQ(nv->horiz,odev.v.horiz) || /* resize window? */ |
213 |
< |
!FEQ(nv->vert,odev.v.vert)) { |
214 |
< |
int dw = DisplayWidth(ourdisplay,ourscreen); |
215 |
< |
int dh = DisplayHeight(ourdisplay,ourscreen); |
275 |
> |
if (nv != &odev.v && /* resize window? */ |
276 |
> |
(!FEQ(nv->horiz,odev.v.horiz) || |
277 |
> |
!FEQ(nv->vert,odev.v.vert))) { |
278 |
> |
int dw = DisplayWidth(ourdisplay,ourscreen); |
279 |
> |
int dh = DisplayHeight(ourdisplay,ourscreen); |
280 |
|
|
281 |
< |
dw -= 25; /* for window frame */ |
282 |
< |
dh -= 50; |
283 |
< |
odev.hres = 2.*VIEWDIST/pwidth * |
284 |
< |
tan(PI/180./2.*nv->horiz); |
285 |
< |
odev.vres = 2.*VIEWDIST/pheight * |
286 |
< |
tan(PI/180./2.*nv->vert); |
287 |
< |
if (odev.hres > dw) { |
288 |
< |
odev.vres = dw * odev.vres / odev.hres; |
289 |
< |
odev.hres = dw; |
290 |
< |
} |
291 |
< |
if (odev.vres > dh) { |
292 |
< |
odev.hres = dh * odev.hres / odev.vres; |
229 |
< |
odev.vres = dh; |
230 |
< |
} |
231 |
< |
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
232 |
< |
dev_input(); /* get resize event */ |
281 |
> |
dw -= 25; /* for window frame */ |
282 |
> |
dh -= 50; |
283 |
> |
#ifdef STEREO |
284 |
> |
dh /= 2; |
285 |
> |
#endif |
286 |
> |
odev.hres = 2.*VIEWDIST/pwidth * |
287 |
> |
tan(PI/180./2.*nv->horiz); |
288 |
> |
odev.vres = 2.*VIEWDIST/pheight * |
289 |
> |
tan(PI/180./2.*nv->vert); |
290 |
> |
if (odev.hres > dw) { |
291 |
> |
odev.vres = dw * odev.vres / odev.hres; |
292 |
> |
odev.hres = dw; |
293 |
|
} |
294 |
< |
copystruct(&odev.v, nv); |
294 |
> |
if (odev.vres > dh) { |
295 |
> |
odev.hres = dh * odev.hres / odev.vres; |
296 |
> |
odev.vres = dh; |
297 |
> |
} |
298 |
> |
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
299 |
> |
dev_input(); /* get resize event */ |
300 |
|
} |
301 |
< |
if (nxtzmax > FTINY) { |
302 |
< |
curzmax = nxtzmax; |
303 |
< |
nxtzmax = 0.; |
304 |
< |
} |
305 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
306 |
< |
qtReplant(); |
301 |
> |
copystruct(&odev.v, nv); /* setview() already called */ |
302 |
> |
setglpersp(&odev.v); |
303 |
> |
#ifdef STEREO |
304 |
> |
copystruct(&vwright, nv); |
305 |
> |
d = eyesepdist / sqrt(nv->hn2); |
306 |
> |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
307 |
> |
/* setview(&vwright); -- Unnecessary */ |
308 |
> |
#endif |
309 |
> |
checkglerr("setting view"); |
310 |
> |
wipeclean(); |
311 |
|
return(1); |
312 |
|
} |
313 |
|
|
314 |
|
|
315 |
+ |
dev_auxcom(cmd, args) /* process an auxiliary command */ |
316 |
+ |
char *cmd, *args; |
317 |
+ |
{ |
318 |
+ |
#ifdef DOBJ |
319 |
+ |
if (dobj_command(cmd, args) >= 0) |
320 |
+ |
return; |
321 |
+ |
#endif |
322 |
+ |
sprintf(errmsg, "%s: unknown command", cmd); |
323 |
+ |
error(COMMAND, errmsg); |
324 |
+ |
} |
325 |
+ |
|
326 |
+ |
|
327 |
+ |
VIEW * |
328 |
+ |
dev_auxview(n, hvres) /* return nth auxiliary view */ |
329 |
+ |
int n; |
330 |
+ |
int hvres[2]; |
331 |
+ |
{ |
332 |
+ |
hvres[0] = odev.hres; hvres[1] = odev.vres; |
333 |
+ |
if (n == 0) |
334 |
+ |
return(&odev.v); |
335 |
+ |
#ifdef STEREO |
336 |
+ |
if (n == 1) |
337 |
+ |
return(&vwright); |
338 |
+ |
#endif |
339 |
+ |
return(NULL); |
340 |
+ |
} |
341 |
+ |
|
342 |
+ |
|
343 |
|
int |
344 |
|
dev_input() /* get X11 input */ |
345 |
|
{ |
348 |
|
do |
349 |
|
getevent(); |
350 |
|
|
351 |
< |
while (XQLength(ourdisplay) > 0); |
351 |
> |
while (XPending(ourdisplay) > 0); |
352 |
|
|
353 |
+ |
odev.inpready = 0; |
354 |
+ |
|
355 |
|
return(inpresflags); |
356 |
|
} |
357 |
|
|
358 |
|
|
359 |
+ |
dev_value(c, d, p) /* add a pixel value to our mesh */ |
360 |
+ |
COLR c; |
361 |
+ |
FVECT d, p; |
362 |
+ |
{ |
363 |
+ |
double depth; |
364 |
+ |
#ifdef DOBJ |
365 |
+ |
if (dobj_lightsamp != NULL) { /* in light source sampling */ |
366 |
+ |
(*dobj_lightsamp)(c, d, p); |
367 |
+ |
return; |
368 |
+ |
} |
369 |
+ |
#endif |
370 |
+ |
smNewSamp(c, d, p); /* add to display representation */ |
371 |
+ |
if (p != NULL) { |
372 |
+ |
depth = (p[0] - odev.v.vp[0])*d[0] + |
373 |
+ |
(p[1] - odev.v.vp[1])*d[1] + |
374 |
+ |
(p[2] - odev.v.vp[2])*d[2]; |
375 |
+ |
if (depth > FTINY) { |
376 |
+ |
if (depth < mindpth) |
377 |
+ |
mindpth = depth; |
378 |
+ |
if (depth > maxdpth) |
379 |
+ |
maxdpth = depth; |
380 |
+ |
} |
381 |
+ |
} |
382 |
+ |
if (!--rayqleft) |
383 |
+ |
dev_flush(); /* flush output */ |
384 |
+ |
} |
385 |
+ |
|
386 |
+ |
|
387 |
|
int |
388 |
|
dev_flush() /* flush output */ |
389 |
|
{ |
390 |
< |
qtUpdate(); |
391 |
< |
glFlush(); |
392 |
< |
return(XPending(ourdisplay)); |
390 |
> |
#ifdef STEREO |
391 |
> |
pushright(); /* update right eye */ |
392 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
393 |
> |
smUpdate(&vwright, 100); |
394 |
> |
#ifdef DOBJ |
395 |
> |
dobj_render(); /* usually in foreground */ |
396 |
> |
#endif |
397 |
> |
popright(); /* update left eye */ |
398 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
399 |
> |
#endif |
400 |
> |
smUpdate(&odev.v, 100); |
401 |
> |
#ifdef DOBJ |
402 |
> |
dobj_render(); |
403 |
> |
#endif |
404 |
> |
glFlush(); /* flush OGL */ |
405 |
> |
checkglerr("flushing display"); |
406 |
> |
rayqleft = RAYQLEN; |
407 |
> |
/* flush X11 and return # pending */ |
408 |
> |
return(odev.inpready = XPending(ourdisplay)); |
409 |
|
} |
410 |
|
|
411 |
|
|
412 |
< |
dev_cone(rgb, ip, rad) /* render a cone in view coordinates */ |
413 |
< |
BYTE rgb[3]; |
271 |
< |
FVECT ip; |
272 |
< |
double rad; |
412 |
> |
checkglerr(where) /* check for GL or GLU error */ |
413 |
> |
char *where; |
414 |
|
{ |
415 |
< |
register int ci, j; |
416 |
< |
double apexh, basez; |
417 |
< |
/* compute apex height (0. to 1.) */ |
418 |
< |
if (ip[2] > 1e6) |
419 |
< |
apexh = 1. - 1./DEPTHFACT; |
420 |
< |
else { |
280 |
< |
if (ip[2] > nxtzmax) |
281 |
< |
nxtzmax = ip[2]; |
282 |
< |
if (ip[2] >= curzmax) |
283 |
< |
apexh = 1. - 1./DEPTHFACT; |
284 |
< |
else |
285 |
< |
apexh = 1. - ip[2]/(curzmax*DEPTHFACT); |
415 |
> |
register GLenum errcode; |
416 |
> |
|
417 |
> |
while ((errcode = glGetError()) != GL_NO_ERROR) { |
418 |
> |
sprintf(errmsg, "OpenGL error %s: %s", |
419 |
> |
where, gluErrorString(errcode)); |
420 |
> |
error(WARNING, errmsg); |
421 |
|
} |
287 |
– |
rad *= 1.25; /* find conservative cone match */ |
288 |
– |
for (ci = 0; ci < MAXCONE-1; ci++) |
289 |
– |
if (cone[ci].rad >= rad) |
290 |
– |
break; |
291 |
– |
/* draw it */ |
292 |
– |
glColor3ub(rgb[0], rgb[1], rgb[2]); |
293 |
– |
glBegin(GL_TRIANGLE_FAN); |
294 |
– |
glVertex3d(ip[0], ip[1], apexh); /* start with apex */ |
295 |
– |
basez = apexh*cone[ci].va[0][2]; /* base z's all the same */ |
296 |
– |
for (j = 0; j < cone[ci].nverts; j++) /* draw each face */ |
297 |
– |
glVertex3d(ip[0]+cone[ci].va[j][0], ip[1]+cone[ci].va[j][1], |
298 |
– |
basez); |
299 |
– |
/* connect last to first */ |
300 |
– |
glVertex3d(ip[0]+cone[ci].va[0][0], ip[1]+cone[ci].va[0][1], basez); |
301 |
– |
glEnd(); /* all done */ |
422 |
|
} |
423 |
|
|
424 |
|
|
425 |
+ |
#ifdef STEREO |
426 |
+ |
static |
427 |
+ |
pushright() /* push on right view */ |
428 |
+ |
{ |
429 |
+ |
double d; |
430 |
+ |
|
431 |
+ |
setstereobuf(STEREO_BUFFER_RIGHT); |
432 |
+ |
glMatrixMode(GL_MODELVIEW); |
433 |
+ |
glPushMatrix(); |
434 |
+ |
d = -eyesepdist / sqrt(odev.v.hn2); |
435 |
+ |
glTranslated(d*odev.v.hvec[0], d*odev.v.hvec[1], d*odev.v.hvec[2]); |
436 |
+ |
} |
437 |
+ |
|
438 |
+ |
|
439 |
+ |
static |
440 |
+ |
popright() /* pop off right view */ |
441 |
+ |
{ |
442 |
+ |
glMatrixMode(GL_MODELVIEW); |
443 |
+ |
glPopMatrix(); |
444 |
+ |
setstereobuf(STEREO_BUFFER_LEFT); |
445 |
+ |
} |
446 |
+ |
#endif |
447 |
+ |
|
448 |
+ |
|
449 |
|
static int |
450 |
|
mytmflags() /* figure out tone mapping flags */ |
451 |
|
{ |
457 |
|
tail = cp+1; |
458 |
|
for (cp = tail; *cp && *cp != '.'; cp++) |
459 |
|
; |
460 |
< |
if (cp-tail == 3 && !strncmp(tail, "glx", 3)) |
461 |
< |
return(TM_F_CAMERA); |
462 |
< |
if (cp-tail == 4 && !strncmp(tail, "glxh", 4)) |
463 |
< |
return(TM_F_HUMAN); |
320 |
< |
error(USER, "illegal driver name"); |
460 |
> |
if (cp > tail && cp[-1] == 'h') |
461 |
> |
return(TM_F_HUMAN|TM_F_NOSTDERR); |
462 |
> |
else |
463 |
> |
return(TM_F_CAMERA|TM_F_NOSTDERR); |
464 |
|
} |
465 |
|
|
466 |
|
|
467 |
|
static |
325 |
– |
initcones() /* initialize cone vertices */ |
326 |
– |
{ |
327 |
– |
register int i, j; |
328 |
– |
double minrad, d; |
329 |
– |
|
330 |
– |
if (cone[0].nverts) |
331 |
– |
freecones(); |
332 |
– |
minrad = 2.*qtMinNodesiz/(double)(DisplayWidth(ourdisplay,ourscreen) + |
333 |
– |
DisplayHeight(ourdisplay,ourscreen)); |
334 |
– |
for (i = 0; i < MAXCONE; i++) { |
335 |
– |
d = (double)i/(MAXCONE-1); d *= d; /* x^2 distribution */ |
336 |
– |
cone[i].rad = minrad + (1.-minrad)*d; |
337 |
– |
cone[i].nverts = MINVERT + (MAXVERT-MINVERT)*d; |
338 |
– |
cone[i].va = (FVECT *)malloc(cone[i].nverts*sizeof(FVECT)); |
339 |
– |
if (cone[i].va == NULL) |
340 |
– |
error(SYSTEM, "out of memory in initcones"); |
341 |
– |
for (j = cone[i].nverts; j--; ) { |
342 |
– |
d = 2.*PI * (j+.5) / (cone[i].nverts); |
343 |
– |
cone[i].va[j][0] = cos(d) * cone[i].rad; |
344 |
– |
cone[i].va[j][1] = sin(d) * cone[i].rad; |
345 |
– |
cone[i].va[j][2] = 1. - cone[i].rad; |
346 |
– |
} |
347 |
– |
} |
348 |
– |
} |
349 |
– |
|
350 |
– |
|
351 |
– |
static |
352 |
– |
freecones() /* free cone vertices */ |
353 |
– |
{ |
354 |
– |
register int i; |
355 |
– |
|
356 |
– |
for (i = MAXCONE; i--; ) |
357 |
– |
if (cone[i].nverts) { |
358 |
– |
free((char *)cone[i].va); |
359 |
– |
cone[i].va = NULL; |
360 |
– |
cone[i].nverts = 0; |
361 |
– |
} |
362 |
– |
} |
363 |
– |
|
364 |
– |
|
365 |
– |
static |
468 |
|
getevent() /* get next event */ |
469 |
|
{ |
470 |
|
XNextEvent(ourdisplay, levptr(XEvent)); |
504 |
|
draw_grids() /* draw holodeck section grids */ |
505 |
|
{ |
506 |
|
static BYTE gridrgba[4] = {0x0, 0xff, 0xff, 0x00}; |
507 |
< |
double xmin, xmax, ymin, ymax, zmin, zmax; |
508 |
< |
double d, cx, sx, crad; |
407 |
< |
FVECT vx, vy; |
408 |
< |
register int i, j; |
409 |
< |
/* can we even do it? */ |
410 |
< |
if (!mapped || odev.v.type != VT_PER) |
507 |
> |
|
508 |
> |
if (!mapped) |
509 |
|
return; |
412 |
– |
/* compute view frustum */ |
413 |
– |
if (normalize(odev.v.vdir) == 0.0) |
414 |
– |
return; |
415 |
– |
zmin = 0.01; |
416 |
– |
zmax = 10000.; |
417 |
– |
if (odev.v.vfore > FTINY) |
418 |
– |
zmin = odev.v.vfore; |
419 |
– |
if (odev.v.vaft > FTINY) |
420 |
– |
zmax = odev.v.vaft; |
421 |
– |
xmax = zmin * tan(PI/180./2. * odev.v.horiz); |
422 |
– |
xmin = -xmax; |
423 |
– |
d = odev.v.hoff * (xmax - xmin); |
424 |
– |
xmin += d; xmax += d; |
425 |
– |
ymax = zmin * tan(PI/180./2. * odev.v.vert); |
426 |
– |
ymin = -ymax; |
427 |
– |
d = odev.v.voff * (ymax - ymin); |
428 |
– |
ymin += d; ymax += d; |
429 |
– |
/* set view matrix */ |
430 |
– |
glMatrixMode(GL_PROJECTION); |
431 |
– |
glPushMatrix(); |
432 |
– |
glLoadIdentity(); |
433 |
– |
glFrustum(xmin, xmax, ymin, ymax, zmin, zmax); |
434 |
– |
gluLookAt(odev.v.vp[0], odev.v.vp[1], odev.v.vp[2], |
435 |
– |
odev.v.vp[0] + odev.v.vdir[0], |
436 |
– |
odev.v.vp[1] + odev.v.vdir[1], |
437 |
– |
odev.v.vp[2] + odev.v.vdir[2], |
438 |
– |
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
439 |
– |
glDisable(GL_DEPTH_TEST); /* write no depth values */ |
510 |
|
glColor4ub(gridrgba[0], gridrgba[1], gridrgba[2], gridrgba[3]); |
511 |
|
glBegin(GL_LINES); /* draw each grid line */ |
512 |
|
gridlines(draw3dline); |
513 |
|
glEnd(); |
444 |
– |
glEnable(GL_DEPTH_TEST); /* restore rendering params */ |
445 |
– |
glPopMatrix(); |
514 |
|
} |
515 |
|
|
516 |
|
|
519 |
|
int dx, dy, mov, orb; |
520 |
|
{ |
521 |
|
VIEW nv; |
522 |
< |
FVECT odir, v1; |
522 |
> |
FVECT odir, v1, wip; |
523 |
|
double d; |
524 |
|
register int li; |
525 |
|
/* start with old view */ |
526 |
|
copystruct(&nv, &odev.v); |
527 |
|
/* change view direction */ |
528 |
+ |
if (viewray(v1, odir, &odev.v, |
529 |
+ |
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
530 |
+ |
return(0); /* outside view */ |
531 |
|
if (mov | orb) { |
532 |
< |
if ((li = qtFindLeaf(dx, dy)) < 0) |
532 |
> |
#ifdef DOBJ |
533 |
> |
d = dobj_trace(v1, odir); /* check objects */ |
534 |
> |
/* is holodeck in front? */ |
535 |
> |
if ((li = smFindSamp(v1, odir)) >= 0 && |
536 |
> |
(rsL.wp[li][0] - nv.vp[0])*odir[0] + |
537 |
> |
(rsL.wp[li][1] - nv.vp[1])*odir[1] + |
538 |
> |
(rsL.wp[li][2] - nv.vp[2])*odir[2] < d) |
539 |
> |
VCOPY(wip, rsL.wp[li]); |
540 |
> |
else if (d < .99*FHUGE) /* object is closer */ |
541 |
> |
VSUM(wip, nv.vp, odir, d); |
542 |
> |
else /* nothing visible */ |
543 |
> |
return(0); |
544 |
> |
#else |
545 |
> |
if ((li = smFindSamp(v1, odir)) < 0) |
546 |
|
return(0); /* not on window */ |
547 |
< |
VSUM(odir, qtL.wp[li], nv.vp, -1.); |
548 |
< |
} else { |
549 |
< |
if (viewray(nv.vp, nv.vdir, &odev.v, |
550 |
< |
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
551 |
< |
return(0); /* outside view */ |
468 |
< |
} |
547 |
> |
VCOPY(wip, rsL.wp[li]); |
548 |
> |
#endif |
549 |
> |
VSUM(odir, wip, nv.vp, -1.); |
550 |
> |
} else |
551 |
> |
VCOPY(nv.vdir, odir); |
552 |
|
if (orb && mov) { /* orbit left/right */ |
553 |
|
spinvector(odir, odir, nv.vup, d=MOVDEG*PI/180.*mov); |
554 |
< |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
554 |
> |
VSUM(nv.vp, wip, odir, -1.); |
555 |
|
spinvector(nv.vdir, nv.vdir, nv.vup, d); |
556 |
|
} else if (orb) { /* orbit up/down */ |
557 |
|
fcross(v1, odir, nv.vup); |
558 |
|
if (normalize(v1) == 0.) |
559 |
|
return(0); |
560 |
|
spinvector(odir, odir, v1, d=MOVDEG*PI/180.*orb); |
561 |
< |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
561 |
> |
VSUM(nv.vp, wip, odir, -1.); |
562 |
|
spinvector(nv.vdir, nv.vdir, v1, d); |
563 |
|
} else if (mov) { /* move forward/backward */ |
564 |
|
d = MOVPCT/100. * mov; |
583 |
|
{ |
584 |
|
int movdir = MOVDIR(ebut->button); |
585 |
|
int movorb = MOVORB(ebut->state); |
586 |
< |
int oldnodesiz = qtMinNodesiz; |
586 |
> |
int qlevel = 99; |
587 |
> |
time_t lasttime, thistime; |
588 |
> |
int nframes; |
589 |
|
Window rootw, childw; |
590 |
|
int rootx, rooty, wx, wy; |
591 |
|
unsigned int statemask; |
592 |
|
|
508 |
– |
qtMinNodesiz = 24; /* accelerate update rate */ |
593 |
|
XNoOp(ourdisplay); |
594 |
|
|
595 |
+ |
lasttime = time(0); nframes = 0; |
596 |
|
while (!XCheckMaskEvent(ourdisplay, |
597 |
|
ButtonReleaseMask, levptr(XEvent))) { |
598 |
|
|
602 |
|
|
603 |
|
if (!moveview(wx, odev.vres-1-wy, movdir, movorb)) { |
604 |
|
sleep(1); |
605 |
+ |
lasttime++; |
606 |
|
continue; |
607 |
|
} |
608 |
+ |
#ifdef STEREO |
609 |
+ |
pushright(); |
610 |
|
glClear(GL_COLOR_BUFFER_BIT); |
523 |
– |
qtUpdate(); |
611 |
|
draw_grids(); |
612 |
+ |
smUpdate(&vwright, qlevel); |
613 |
+ |
#ifdef DOBJ |
614 |
+ |
dobj_render(); |
615 |
+ |
#endif |
616 |
+ |
popright(); |
617 |
+ |
#endif |
618 |
+ |
glClear(GL_COLOR_BUFFER_BIT); |
619 |
+ |
draw_grids(); |
620 |
+ |
smUpdate(&odev.v, qlevel); |
621 |
+ |
#ifdef DOBJ |
622 |
+ |
dobj_render(); |
623 |
+ |
#endif |
624 |
|
glFlush(); |
625 |
+ |
checkglerr("moving view"); |
626 |
+ |
nframes++; |
627 |
+ |
thistime = time(0); |
628 |
+ |
if (thistime - lasttime >= 3 || |
629 |
+ |
nframes > (int)(3*3*TARGETFPS)) { |
630 |
+ |
qlevel = thistime<=lasttime ? 1000 : |
631 |
+ |
(int)((double)nframes/(thistime-lasttime) |
632 |
+ |
/ TARGETFPS * qlevel + 0.5); |
633 |
+ |
lasttime = thistime; nframes = 0; |
634 |
+ |
if (qlevel > 99) { |
635 |
+ |
if (qlevel > 300) { /* put on the brakes */ |
636 |
+ |
sleep(1); |
637 |
+ |
lasttime++; |
638 |
+ |
} |
639 |
+ |
qlevel = 99; |
640 |
+ |
} else if (qlevel < 1) |
641 |
+ |
qlevel = 1; |
642 |
+ |
} |
643 |
|
} |
644 |
|
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
645 |
|
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
647 |
|
wy = levptr(XButtonReleasedEvent)->y; |
648 |
|
moveview(wx, odev.vres-1-wy, movdir, movorb); |
649 |
|
} |
650 |
< |
dev_flush(); |
650 |
> |
} |
651 |
|
|
652 |
< |
qtMinNodesiz = oldnodesiz; /* restore quadtree resolution */ |
652 |
> |
|
653 |
> |
static |
654 |
> |
setglpersp(vp) /* set perspective view in GL */ |
655 |
> |
register VIEW *vp; |
656 |
> |
{ |
657 |
> |
double d, xmin, xmax, ymin, ymax; |
658 |
> |
|
659 |
> |
if (mindpth >= maxdpth) { |
660 |
> |
dev_zmin = 0.1; |
661 |
> |
dev_zmax = 100.; |
662 |
> |
} else { |
663 |
> |
dev_zmin = 0.5*mindpth; |
664 |
> |
dev_zmax = 1.5*maxdpth; |
665 |
> |
if (dev_zmin > dev_zmax/100.) |
666 |
> |
dev_zmin = dev_zmax/100.; |
667 |
> |
} |
668 |
> |
if (odev.v.vfore > FTINY) |
669 |
> |
dev_zmin = odev.v.vfore; |
670 |
> |
if (odev.v.vaft > FTINY) |
671 |
> |
dev_zmax = odev.v.vaft; |
672 |
> |
if (dev_zmin < dev_zmax/5000.) |
673 |
> |
dev_zmin = dev_zmax/5000.; |
674 |
> |
xmax = dev_zmin * tan(PI/180./2. * odev.v.horiz); |
675 |
> |
xmin = -xmax; |
676 |
> |
d = odev.v.hoff * (xmax - xmin); |
677 |
> |
xmin += d; xmax += d; |
678 |
> |
ymax = dev_zmin * tan(PI/180./2. * odev.v.vert); |
679 |
> |
ymin = -ymax; |
680 |
> |
d = odev.v.voff * (ymax - ymin); |
681 |
> |
ymin += d; ymax += d; |
682 |
> |
/* set view matrix */ |
683 |
> |
glMatrixMode(GL_PROJECTION); |
684 |
> |
glLoadIdentity(); |
685 |
> |
glFrustum(xmin, xmax, ymin, ymax, dev_zmin, dev_zmax); |
686 |
> |
gluLookAt(odev.v.vp[0], odev.v.vp[1], odev.v.vp[2], |
687 |
> |
odev.v.vp[0] + odev.v.vdir[0], |
688 |
> |
odev.v.vp[1] + odev.v.vdir[1], |
689 |
> |
odev.v.vp[2] + odev.v.vdir[2], |
690 |
> |
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
691 |
|
} |
692 |
|
|
693 |
|
|
694 |
|
static |
695 |
+ |
wipeclean() /* prepare for redraw */ |
696 |
+ |
{ |
697 |
+ |
#ifdef STEREO |
698 |
+ |
setstereobuf(STEREO_BUFFER_RIGHT); |
699 |
+ |
glClear(GL_DEPTH_BUFFER_BIT); |
700 |
+ |
setstereobuf(STEREO_BUFFER_LEFT); |
701 |
+ |
#endif |
702 |
+ |
glClear(GL_DEPTH_BUFFER_BIT); |
703 |
+ |
smClean(); |
704 |
+ |
} |
705 |
+ |
|
706 |
+ |
|
707 |
+ |
static |
708 |
|
getkey(ekey) /* get input key */ |
709 |
|
register XKeyPressedEvent *ekey; |
710 |
|
{ |
735 |
|
inpresflags |= DFL(DC_RESUME); |
736 |
|
return; |
737 |
|
case CTRL('R'): /* redraw screen */ |
738 |
< |
if (nxtzmax > FTINY) { |
571 |
< |
curzmax = nxtzmax; |
572 |
< |
nxtzmax = 0.; |
573 |
< |
} |
574 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
575 |
< |
qtRedraw(0, 0, odev.hres, odev.vres); |
738 |
> |
wipeclean(); |
739 |
|
return; |
740 |
|
case CTRL('L'): /* refresh from server */ |
741 |
|
if (inpresflags & DFL(DC_REDRAW)) |
742 |
|
return; |
580 |
– |
if (nxtzmax > FTINY) { |
581 |
– |
curzmax = nxtzmax; |
582 |
– |
nxtzmax = 0.; |
583 |
– |
} |
743 |
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
744 |
+ |
glDisable(GL_DEPTH_TEST); |
745 |
|
draw_grids(); |
746 |
+ |
#ifdef STEREO |
747 |
+ |
pushright(); |
748 |
+ |
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
749 |
+ |
draw_grids(); |
750 |
+ |
popright(); |
751 |
+ |
#endif |
752 |
+ |
glEnable(GL_DEPTH_TEST); |
753 |
|
glFlush(); |
754 |
< |
qtCompost(100); /* get rid of old values */ |
754 |
> |
smInit(rsL.max_samp); /* get rid of old values */ |
755 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
756 |
+ |
rayqleft = 0; /* hold off update */ |
757 |
|
return; |
758 |
|
case 'K': /* kill rtrace process(es) */ |
759 |
|
inpresflags |= DFL(DC_KILL); |
778 |
|
fixwindow(eexp) /* repair damage to window */ |
779 |
|
register XExposeEvent *eexp; |
780 |
|
{ |
781 |
< |
int xmin, xmax, ymin, ymax; |
614 |
< |
|
615 |
< |
if (odev.hres == 0 || odev.vres == 0) /* first exposure */ |
781 |
> |
if (odev.hres == 0 | odev.vres == 0) { /* first exposure */ |
782 |
|
resizewindow((XConfigureEvent *)eexp); |
783 |
< |
xmin = eexp->x; xmax = eexp->x + eexp->width; |
784 |
< |
ymin = odev.vres - eexp->y - eexp->height; ymax = odev.vres - eexp->y; |
785 |
< |
/* clear portion of depth */ |
786 |
< |
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); |
787 |
< |
glDepthFunc(GL_ALWAYS); |
622 |
< |
glBegin(GL_POLYGON); |
623 |
< |
glVertex3d((double)xmin/odev.hres, (double)ymin/odev.vres, 0.); |
624 |
< |
glVertex3d((double)xmax/odev.hres, (double)ymin/odev.vres, 0.); |
625 |
< |
glVertex3d((double)xmax/odev.hres, (double)ymax/odev.vres, 0.); |
626 |
< |
glVertex3d((double)xmin/odev.hres, (double)ymax/odev.vres, 0.); |
627 |
< |
glEnd(); |
628 |
< |
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); |
629 |
< |
glDepthFunc(GL_LEQUAL); |
630 |
< |
qtRedraw(xmin, ymin, xmax, ymax); |
783 |
> |
return; |
784 |
> |
} |
785 |
> |
if (eexp->count) /* wait for final exposure */ |
786 |
> |
return; |
787 |
> |
wipeclean(); /* clear depth */ |
788 |
|
} |
789 |
|
|
790 |
|
|