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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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/* |
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* OpenGL GLX driver for holodeck display. |
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* Based on rview 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 "tonemap.h" |
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#include "rhdriver.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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|
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#include "x11icon.h" |
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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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#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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|
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#ifndef int4 |
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#define int4 int |
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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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#ifndef FREEPCT |
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#define FREEPCT 25 /* percentage of values to free */ |
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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 NCONEV |
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#define NCONEV 7 /* number of cone base vertices */ |
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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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#ifndef CONEH |
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#define CONEH 0.25 /* cone height (fraction of depth) */ |
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#endif |
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#ifndef CONEW |
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#define CONEW 0.035 /* cone width (fraction of screen) */ |
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#endif |
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|
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#define GAMMA 2.2 /* default gamma correction */ |
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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 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 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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#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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static unsigned long *pixval = NULL; /* allocated pixels */ |
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static unsigned long ourblack=0, ourwhite=~0; |
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|
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static Display *ourdisplay = NULL; /* our display */ |
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static Window gwind = 0; /* our graphics window */ |
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static GLXContext gctx; /* our GLX context */ |
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|
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static double mindepth = FHUGE; /* minimum depth value so far */ |
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static double maxdepth = 0.; /* maximum depth value */ |
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|
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static double pwidth, pheight; /* pixel dimensions (mm) */ |
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|
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static FVECT conev[NCONEV]; /* drawing cone */ |
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static double coneh; /* cone height */ |
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static double mindpth, maxdpth; /* min. and max. depth */ |
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|
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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 struct { |
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float (*wp)[3]; /* world intersection point array */ |
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int4 *wd; /* world direction array */ |
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TMbright *brt; /* encoded brightness array */ |
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BYTE (*chr)[3]; /* encoded chrominance array */ |
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BYTE (*rgb)[3]; /* tone-mapped color array */ |
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BYTE *alpha; /* alpha values */ |
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int nl; /* count of values */ |
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int bl, tl; /* bottom and top (next) value index */ |
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int tml; /* next value needing tone-mapping */ |
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int drl; /* next value in need of drawing */ |
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char *base; /* base of allocated memory */ |
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} rV; /* our collection of values */ |
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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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#define redraw() (rV.drl = rV.bl) |
106 |
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#ifdef STEREO |
107 |
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static int pushright(), popright(); |
108 |
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#endif |
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|
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static int resizewindow(), getevent(), getkey(), moveview(), |
105 |
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setGLview(), getmove(), fixwindow(), mytmflags(), |
106 |
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newvalue(), drawvalue(), Compost(), |
107 |
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FindValue(), AllocValues(), TMapValues(), FreeValues(); |
110 |
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extern time_t time(); |
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|
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|
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dev_open(id) /* initialize X11 driver */ |
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dev_open(id) /* initialize GLX driver */ |
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char *id; |
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{ |
116 |
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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, |
120 |
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GLX_ALPHA_SIZE,8, GLX_DEPTH_SIZE,23, |
121 |
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/*GLX_DOUBLEBUFFER,*/ None}; |
118 |
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static int atlOK[] = {GLX_RGBA, GLX_RED_SIZE,4, |
119 |
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GLX_GREEN_SIZE,4, GLX_BLUE_SIZE,4, |
120 |
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GLX_ALPHA_SIZE,4, GLX_DEPTH_SIZE,15, |
121 |
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/*GLX_DOUBLEBUFFER,*/ None}; |
122 |
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char *gv; |
120 |
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GLX_DEPTH_SIZE,15, None}; |
121 |
> |
char *ev; |
122 |
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double gamval = GAMMA; |
123 |
+ |
RGBPRIMP dpri = stdprims; |
124 |
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XSetWindowAttributes ourwinattr; |
125 |
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XWMHints ourxwmhints; |
126 |
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XSizeHints oursizhints; |
127 |
+ |
/* check for unsupported stereo */ |
128 |
+ |
#ifdef NOSTEREO |
129 |
+ |
error(INTERNAL, "stereo display driver unavailable"); |
130 |
+ |
#endif |
131 |
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/* open display server */ |
132 |
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ourdisplay = XOpenDisplay(NULL); |
133 |
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if (ourdisplay == NULL) |
134 |
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error(USER, "cannot open X-windows; DISPLAY variable set?\n"); |
135 |
+ |
#ifdef STEREO |
136 |
+ |
switch (XSGIQueryStereoMode(ourdisplay, ourroot)) { |
137 |
+ |
case STEREO_TOP: |
138 |
+ |
case STEREO_BOTTOM: |
139 |
+ |
break; |
140 |
+ |
case STEREO_OFF: |
141 |
+ |
error(USER, |
142 |
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"wrong video mode: run \"/usr/gfx/setmon -n STR_TOP\" first"); |
143 |
+ |
case X_STEREO_UNSUPPORTED: |
144 |
+ |
error(USER, "stereo mode not supported on this screen"); |
145 |
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default: |
146 |
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error(INTERNAL, "unknown stereo mode"); |
147 |
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} |
148 |
+ |
#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) |
134 |
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ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlOK); |
135 |
– |
if (ourvinf == NULL) |
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error(USER, "no suitable visuals available"); |
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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 */ |
156 |
< |
if ((gv = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
157 |
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|| (gv = getenv("DISPLAY_GAMMA")) != NULL) |
158 |
< |
gamval = atof(gv); |
159 |
< |
if (tmInit(mytmflags(), stdprims, gamval) == NULL) |
156 |
> |
if ((ev = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
157 |
> |
|| (ev = getenv("DISPLAY_GAMMA")) != NULL) |
158 |
> |
gamval = atof(ev); |
159 |
> |
if ((ev = getenv("DISPLAY_PRIMARIES")) != NULL && |
160 |
> |
sscanf(ev, "%f %f %f %f %f %f %f %f", |
161 |
> |
&myprims[RED][CIEX],&myprims[RED][CIEY], |
162 |
> |
&myprims[GRN][CIEX],&myprims[GRN][CIEY], |
163 |
> |
&myprims[BLU][CIEX],&myprims[BLU][CIEY], |
164 |
> |
&myprims[WHT][CIEX],&myprims[WHT][CIEY]) >= 6) |
165 |
> |
dpri = myprims; |
166 |
> |
if (tmInit(mytmflags(), dpri, gamval) == NULL) |
167 |
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error(SYSTEM, "not enough memory in dev_open"); |
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/* open window */ |
169 |
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ourwinattr.background_pixel = ourblack; |
174 |
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ourvinf->visual, AllocNone); |
175 |
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gwind = XCreateWindow(ourdisplay, ourroot, 0, 0, |
176 |
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DisplayWidth(ourdisplay,ourscreen)-2*BORWIDTH, |
177 |
+ |
#ifdef STEREO |
178 |
+ |
(DisplayHeight(ourdisplay,ourscreen)-2*BORWIDTH)/2, |
179 |
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#else |
180 |
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DisplayHeight(ourdisplay,ourscreen)-2*BORWIDTH, |
181 |
+ |
#endif |
182 |
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BORWIDTH, ourvinf->depth, InputOutput, ourvinf->visual, |
183 |
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CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &ourwinattr); |
184 |
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if (gwind == 0) |
191 |
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gwind, x11icon_bits, x11icon_width, x11icon_height); |
192 |
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XSetWMHints(ourdisplay, gwind, &ourxwmhints); |
193 |
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oursizhints.min_width = MINWIDTH; |
194 |
+ |
#ifdef STEREO |
195 |
+ |
oursizhints.min_height = MINHEIGHT/2; |
196 |
+ |
oursizhints.max_width = DisplayWidth(ourdisplay,ourscreen)-2*BORWIDTH; |
197 |
+ |
oursizhints.max_height = (DisplayHeight(ourdisplay,ourscreen) - |
198 |
+ |
2*BORWIDTH)/2; |
199 |
+ |
oursizhints.flags = PMinSize|PMaxSize; |
200 |
+ |
#else |
201 |
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oursizhints.min_height = MINHEIGHT; |
202 |
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oursizhints.flags = PMinSize; |
203 |
+ |
#endif |
204 |
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XSetNormalHints(ourdisplay, gwind, &oursizhints); |
205 |
< |
/* map the window and get its size */ |
206 |
< |
XMapWindow(ourdisplay, gwind); |
207 |
< |
dev_input(); |
208 |
< |
/* allocate our value list */ |
209 |
< |
if (!AllocValues(DisplayWidth(ourdisplay,ourscreen) * |
210 |
< |
DisplayHeight(ourdisplay,ourscreen) / 4)) |
211 |
< |
error(SYSTEM, "insufficient memory for value storage"); |
205 |
> |
/* set GLX context */ |
206 |
> |
glXMakeCurrent(ourdisplay, gwind, gctx); |
207 |
> |
glEnable(GL_DEPTH_TEST); |
208 |
> |
glDepthFunc(GL_LEQUAL); |
209 |
> |
glShadeModel(GL_SMOOTH); |
210 |
> |
glDisable(GL_DITHER); |
211 |
> |
glDisable(GL_CULL_FACE); |
212 |
|
/* figure out sensible view */ |
213 |
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pwidth = (double)DisplayWidthMM(ourdisplay, ourscreen) / |
214 |
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DisplayWidth(ourdisplay, ourscreen); |
215 |
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pheight = (double)DisplayHeightMM(ourdisplay, ourscreen) / |
216 |
|
DisplayHeight(ourdisplay, ourscreen); |
217 |
+ |
#ifdef STEREO |
218 |
+ |
pheight *= 2.; |
219 |
+ |
setstereobuf(STEREO_BUFFER_LEFT); |
220 |
+ |
#endif |
221 |
+ |
checkglerr("setting rendering parameters"); |
222 |
|
copystruct(&odev.v, &stdview); |
223 |
|
odev.v.type = VT_PER; |
224 |
< |
odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
225 |
< |
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
224 |
> |
/* map the window */ |
225 |
> |
XMapWindow(ourdisplay, gwind); |
226 |
> |
dev_input(); /* sets size and view angles */ |
227 |
> |
/* allocate our samples */ |
228 |
> |
if (!smInit(DisplayWidth(ourdisplay,ourscreen) * |
229 |
> |
DisplayHeight(ourdisplay,ourscreen) / 10)) |
230 |
> |
error(SYSTEM, "insufficient memory for value storage"); |
231 |
> |
mindpth = FHUGE; maxdpth = FTINY; |
232 |
|
odev.name = id; |
233 |
|
odev.ifd = ConnectionNumber(ourdisplay); |
188 |
– |
/* set GLX context and clear buffers */ |
189 |
– |
glXMakeCurrent(ourdisplay, gwind, gctx); |
190 |
– |
glEnable(GL_DEPTH_TEST); |
191 |
– |
glDepthFunc(GL_LEQUAL); |
192 |
– |
glShadeModel(GL_FLAT); |
193 |
– |
glDisable(GL_DITHER); |
194 |
– |
glDrawBuffer(GL_FRONT_AND_BACK); |
195 |
– |
glReadBuffer(GL_BACK); |
196 |
– |
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
197 |
– |
setGLview(); /* initialize view */ |
234 |
|
} |
235 |
|
|
236 |
|
|
237 |
|
dev_close() /* close our display and free resources */ |
238 |
|
{ |
239 |
+ |
smInit(0); |
240 |
+ |
#ifdef DOBJ |
241 |
+ |
dobj_cleanup(); |
242 |
+ |
#endif |
243 |
|
glXMakeCurrent(ourdisplay, None, NULL); |
244 |
|
glXDestroyContext(ourdisplay, gctx); |
245 |
|
XDestroyWindow(ourdisplay, gwind); |
247 |
|
XCloseDisplay(ourdisplay); |
248 |
|
ourdisplay = NULL; |
249 |
|
tmDone(NULL); |
210 |
– |
FreeValues(); |
250 |
|
odev.v.type = 0; |
251 |
|
odev.hres = odev.vres = 0; |
252 |
|
odev.ifd = -1; |
253 |
|
} |
254 |
|
|
255 |
|
|
256 |
+ |
dev_clear() /* clear our representation */ |
257 |
+ |
{ |
258 |
+ |
smInit(rsL.max_samp); |
259 |
+ |
wipeclean(); |
260 |
+ |
rayqleft = 0; /* hold off update */ |
261 |
+ |
} |
262 |
+ |
|
263 |
+ |
|
264 |
|
int |
265 |
|
dev_view(nv) /* assign new driver view */ |
266 |
|
register VIEW *nv; |
267 |
|
{ |
268 |
+ |
double d; |
269 |
+ |
|
270 |
|
if (nv->type != VT_PER || /* check view legality */ |
271 |
< |
nv->horiz > 120. || nv->vert > 120.) { |
271 |
> |
nv->horiz > 160. || nv->vert > 160.) { |
272 |
|
error(COMMAND, "illegal view type/angle"); |
273 |
< |
nv->type = VT_PER; |
273 |
> |
nv->type = odev.v.type; |
274 |
|
nv->horiz = odev.v.horiz; |
275 |
|
nv->vert = odev.v.vert; |
276 |
|
return(0); |
277 |
|
} |
278 |
|
if (nv != &odev.v) { |
279 |
< |
if (!FEQ(nv->horiz,odev.v.horiz) || /* resize window? */ |
279 |
> |
/* resize window? */ |
280 |
> |
if (!FEQ(nv->horiz,odev.v.horiz) || |
281 |
|
!FEQ(nv->vert,odev.v.vert)) { |
282 |
|
int dw = DisplayWidth(ourdisplay,ourscreen); |
283 |
|
int dh = DisplayHeight(ourdisplay,ourscreen); |
284 |
|
|
285 |
|
dw -= 25; /* for window frame */ |
286 |
|
dh -= 50; |
287 |
+ |
#ifdef STEREO |
288 |
+ |
dh /= 2; |
289 |
+ |
#endif |
290 |
|
odev.hres = 2.*VIEWDIST/pwidth * |
291 |
|
tan(PI/180./2.*nv->horiz); |
292 |
|
odev.vres = 2.*VIEWDIST/pheight * |
300 |
|
odev.vres = dh; |
301 |
|
} |
302 |
|
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
303 |
+ |
dev_input(); /* get resize event */ |
304 |
|
} |
305 |
< |
copystruct(&odev.v, nv); |
306 |
< |
setGLview(); |
305 |
> |
copystruct(&odev.v, nv); /* setview() already called */ |
306 |
> |
#ifdef STEREO |
307 |
> |
copystruct(&vwright, nv); |
308 |
> |
d = eyesepdist / sqrt(nv->hn2); |
309 |
> |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
310 |
> |
/* setview(&vwright); -- Unnecessary */ |
311 |
> |
#endif |
312 |
|
} |
313 |
< |
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
255 |
< |
redraw(); |
313 |
> |
wipeclean(); |
314 |
|
return(1); |
315 |
|
} |
316 |
|
|
317 |
|
|
318 |
+ |
dev_auxcom(cmd, args) /* process an auxiliary command */ |
319 |
+ |
char *cmd, *args; |
320 |
+ |
{ |
321 |
+ |
#ifdef DOBJ |
322 |
+ |
if (dobj_command(cmd, args) >= 0) |
323 |
+ |
return; |
324 |
+ |
#endif |
325 |
+ |
sprintf(errmsg, "%s: unknown command", cmd); |
326 |
+ |
error(COMMAND, errmsg); |
327 |
+ |
} |
328 |
+ |
|
329 |
+ |
|
330 |
+ |
VIEW * |
331 |
+ |
dev_auxview(n, hvres) /* return nth auxiliary view */ |
332 |
+ |
int n; |
333 |
+ |
int hvres[2]; |
334 |
+ |
{ |
335 |
+ |
hvres[0] = odev.hres; hvres[1] = odev.vres; |
336 |
+ |
if (n == 0) |
337 |
+ |
return(&odev.v); |
338 |
+ |
#ifdef STEREO |
339 |
+ |
if (n == 1) |
340 |
+ |
return(&vwright); |
341 |
+ |
#endif |
342 |
+ |
return(NULL); |
343 |
+ |
} |
344 |
+ |
|
345 |
+ |
|
346 |
|
int |
347 |
|
dev_input() /* get X11 input */ |
348 |
|
{ |
351 |
|
do |
352 |
|
getevent(); |
353 |
|
|
354 |
< |
while (XQLength(ourdisplay) > 0); |
354 |
> |
while (XPending(ourdisplay) > 0); |
355 |
|
|
356 |
+ |
odev.inpready = 0; |
357 |
+ |
|
358 |
|
return(inpresflags); |
359 |
|
} |
360 |
|
|
361 |
|
|
362 |
< |
dev_value(c, p, v) /* add a pixel value to our list */ |
362 |
> |
dev_value(c, d, p) /* add a pixel value to our mesh */ |
363 |
|
COLR c; |
364 |
< |
FVECT p, v; |
364 |
> |
FVECT d, p; |
365 |
|
{ |
366 |
< |
register int li; |
367 |
< |
|
368 |
< |
li = newvalue(); |
369 |
< |
VCOPY(rV.wp[li], p); |
370 |
< |
rV.wd[li] = encodedir(v); |
371 |
< |
tmCvColrs(&rV.brt[li], rV.chr[li], c, 1); |
366 |
> |
double depth; |
367 |
> |
#ifdef DOBJ |
368 |
> |
if (dobj_lightsamp != NULL) { /* in light source sampling */ |
369 |
> |
(*dobj_lightsamp)(c, d, p); |
370 |
> |
return; |
371 |
> |
} |
372 |
> |
#endif |
373 |
> |
if (p != NULL) { /* add depth to our range */ |
374 |
> |
depth = (p[0] - odev.v.vp[0])*d[0] + |
375 |
> |
(p[1] - odev.v.vp[1])*d[1] + |
376 |
> |
(p[2] - odev.v.vp[2])*d[2]; |
377 |
> |
if (depth > FTINY) { |
378 |
> |
if (depth < mindpth) |
379 |
> |
mindpth = depth; |
380 |
> |
if (depth > maxdpth) |
381 |
> |
maxdpth = depth; |
382 |
> |
} |
383 |
> |
} |
384 |
> |
smNewSamp(c, d, p); /* add to display representation */ |
385 |
> |
if (!--rayqleft) |
386 |
> |
dev_flush(); /* flush output */ |
387 |
|
} |
388 |
|
|
389 |
|
|
391 |
|
dev_flush() /* flush output */ |
392 |
|
{ |
393 |
|
if (mapped) { |
394 |
< |
TMapValues(0); |
395 |
< |
while (rV.drl != rV.tl) { |
396 |
< |
drawvalue(rV.drl); |
397 |
< |
if (++rV.drl >= rV.nl) |
398 |
< |
rV.drl = 0; |
399 |
< |
} |
400 |
< |
glFlush(); |
394 |
> |
#ifdef STEREO |
395 |
> |
pushright(); /* update right eye */ |
396 |
> |
smUpdate(&vwright, 100); |
397 |
> |
#ifdef DOBJ |
398 |
> |
dobj_render(); /* usually in foreground */ |
399 |
> |
#endif |
400 |
> |
popright(); /* update left eye */ |
401 |
> |
#endif |
402 |
> |
smUpdate(&odev.v, 100); |
403 |
> |
checkglerr("rendering mesh"); |
404 |
> |
#ifdef DOBJ |
405 |
> |
dobj_render(); |
406 |
> |
#endif |
407 |
> |
glFlush(); /* flush OGL */ |
408 |
|
} |
409 |
< |
return(XPending(ourdisplay)); |
409 |
> |
rayqleft = RAYQLEN; |
410 |
> |
/* flush X11 and return # pending */ |
411 |
> |
return(odev.inpready = XPending(ourdisplay)); |
412 |
|
} |
413 |
|
|
414 |
|
|
415 |
< |
static int |
416 |
< |
mytmflags() /* figure out tone mapping flags */ |
415 |
> |
checkglerr(where) /* check for GL or GLU error */ |
416 |
> |
char *where; |
417 |
|
{ |
418 |
< |
extern char *progname; |
307 |
< |
register char *cp, *tail; |
308 |
< |
/* find basic name */ |
309 |
< |
for (cp = tail = progname; *cp; cp++) |
310 |
< |
if (*cp == '/') |
311 |
< |
tail = cp+1; |
312 |
< |
for (cp = tail; *cp && *cp != '.'; cp++) |
313 |
< |
; |
314 |
< |
if (cp-tail == 3 && !strncmp(tail, "glx", 3)) |
315 |
< |
return(TM_F_CAMERA); |
316 |
< |
if (cp-tail == 4 && !strncmp(tail, "glxh", 4)) |
317 |
< |
return(TM_F_HUMAN); |
318 |
< |
error(USER, "illegal driver name"); |
319 |
< |
} |
418 |
> |
register GLenum errcode; |
419 |
|
|
420 |
< |
|
421 |
< |
static |
422 |
< |
setGLview() /* set our GL view */ |
423 |
< |
{ |
325 |
< |
double xmin, xmax, ymin, ymax, zmin, zmax; |
326 |
< |
double d, cx, sx, crad; |
327 |
< |
FVECT vx, vy; |
328 |
< |
register int i, j; |
329 |
< |
/* compute view frustum */ |
330 |
< |
if (normalize(odev.v.vdir) == 0.0) |
331 |
< |
return; |
332 |
< |
if (mindepth < maxdepth) { |
333 |
< |
zmin = 0.25*mindepth; |
334 |
< |
zmax = 8.0*maxdepth; |
335 |
< |
} else { |
336 |
< |
zmin = 0.01; |
337 |
< |
zmax = 1000.; |
420 |
> |
while ((errcode = glGetError()) != GL_NO_ERROR) { |
421 |
> |
sprintf(errmsg, "OpenGL error %s: %s", |
422 |
> |
where, gluErrorString(errcode)); |
423 |
> |
error(WARNING, errmsg); |
424 |
|
} |
339 |
– |
if (odev.v.vfore > FTINY) |
340 |
– |
zmin = odev.v.vfore; |
341 |
– |
if (odev.v.vaft > FTINY) |
342 |
– |
zmax = odev.v.vaft; |
343 |
– |
xmax = zmin * tan(PI/180./2. * odev.v.horiz); |
344 |
– |
xmin = -xmax; |
345 |
– |
d = odev.v.hoff * (xmax - xmin); |
346 |
– |
xmin += d; xmax += d; |
347 |
– |
ymax = zmin * tan(PI/180./2. * odev.v.vert); |
348 |
– |
ymin = -ymax; |
349 |
– |
d = odev.v.voff * (ymax - ymin); |
350 |
– |
ymin += d; ymax += d; |
351 |
– |
/* set view matrix */ |
352 |
– |
glMatrixMode(GL_PROJECTION); |
353 |
– |
glLoadIdentity(); |
354 |
– |
glFrustum(xmin, xmax, ymin, ymax, zmin, zmax); |
355 |
– |
gluLookAt(odev.v.vp[0], odev.v.vp[1], odev.v.vp[2], |
356 |
– |
odev.v.vp[0] + odev.v.vdir[0], |
357 |
– |
odev.v.vp[1] + odev.v.vdir[1], |
358 |
– |
odev.v.vp[2] + odev.v.vdir[2], |
359 |
– |
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
360 |
– |
/* set viewport */ |
361 |
– |
glViewport(0, 0, odev.hres, odev.vres); |
362 |
– |
/* initialize cone for Vornoi polys */ |
363 |
– |
coneh = CONEH*(zmax - zmin); |
364 |
– |
crad = 0.5 * CONEW * 0.5*(xmax-xmin + ymax-ymin) * (zmin+coneh)/zmin; |
365 |
– |
vy[0] = vy[1] = vy[2] = 0.; |
366 |
– |
for (i = 0; i < 3; i++) |
367 |
– |
if (odev.v.vdir[i] < 0.6 && odev.v.vdir[i] > -0.6) |
368 |
– |
break; |
369 |
– |
vy[i] = 1.; |
370 |
– |
fcross(vx, vy, odev.v.vdir); |
371 |
– |
normalize(vx); |
372 |
– |
fcross(vy, odev.v.vdir, vx); |
373 |
– |
for (j = 0, d = 0.; j < NCONEV; j++, d += 2.*PI/NCONEV) { |
374 |
– |
cx = crad*cos(d); sx = crad*sin(d); |
375 |
– |
for (i = 0; i < 3; i++) |
376 |
– |
conev[j][i] = coneh*odev.v.vdir[i] + |
377 |
– |
cx*vx[i] + sx*vy[i]; |
378 |
– |
} |
425 |
|
} |
426 |
|
|
427 |
|
|
428 |
< |
static int |
383 |
< |
newvalue() /* allocate a leaf from our pile */ |
384 |
< |
{ |
385 |
< |
int li; |
386 |
< |
|
387 |
< |
li = rV.tl++; |
388 |
< |
if (rV.tl >= rV.nl) /* get next leaf in ring */ |
389 |
< |
rV.tl = 0; |
390 |
< |
if (rV.tl == rV.bl) /* need to shake some free */ |
391 |
< |
Compost(FREEPCT); |
392 |
< |
return(li); |
393 |
< |
} |
394 |
< |
|
395 |
< |
|
428 |
> |
#ifdef STEREO |
429 |
|
static |
430 |
< |
drawvalue(li) /* draw a pixel value as a cone */ |
398 |
< |
register int li; |
430 |
> |
pushright() /* push on right view */ |
431 |
|
{ |
432 |
< |
static FVECT apex, disp; |
401 |
< |
double d, h, v; |
402 |
< |
register int i; |
403 |
< |
/* compute cone's base displacement */ |
404 |
< |
VCOPY(apex, rV.wp[li]); |
405 |
< |
disp[0] = apex[0] - odev.v.vp[0]; |
406 |
< |
disp[1] = apex[1] - odev.v.vp[1]; |
407 |
< |
disp[2] = apex[2] - odev.v.vp[2]; |
408 |
< |
if ((d = DOT(disp,odev.v.vdir)) <= odev.v.vfore || d <= FTINY) |
409 |
< |
return; |
410 |
< |
if (d > 1e5) { /* background region */ |
411 |
< |
if (odev.v.vaft > FTINY) |
412 |
< |
return; |
413 |
< |
h = maxdepth/d; |
414 |
< |
disp[0] *= h; disp[1] *= h; disp[2] *= h; |
415 |
< |
apex[0] = odev.v.vp[0] + disp[0]; |
416 |
< |
apex[1] = odev.v.vp[1] + disp[1]; |
417 |
< |
apex[2] = odev.v.vp[2] + disp[2]; |
418 |
< |
d = maxdepth; |
419 |
< |
} else if (d > maxdepth) |
420 |
< |
maxdepth = d; |
421 |
< |
h = DOT(disp,odev.v.hvec)/(d*odev.v.hn2); |
422 |
< |
v = DOT(disp,odev.v.vvec)/(d*odev.v.vn2); |
423 |
< |
if (fabs(h - odev.v.hoff) < 0.5 && fabs(v - odev.v.voff) < 0.5 && |
424 |
< |
d < mindepth) |
425 |
< |
{ |
426 |
< |
fprintf(stderr, "min depth now %lf (%lf,%lf,%lf)\n", d, apex[0], apex[1], apex[2]); |
427 |
< |
mindepth = d; |
428 |
< |
} |
429 |
< |
for (i = 0; i < 3; i++) |
430 |
< |
disp[i] = apex[i] + coneh*(h*odev.v.hvec[i] + v*odev.v.vvec[i]); |
431 |
< |
/* draw pyramid (cone approx.) */ |
432 |
< |
glColor4ub(rV.rgb[li][0], rV.rgb[li][1], rV.rgb[li][2], rV.alpha[li]); |
433 |
< |
glBegin(GL_TRIANGLE_FAN); |
434 |
< |
glVertex3f(apex[0], apex[1], apex[2]); |
435 |
< |
for (i = 0; i < NCONEV; i++) |
436 |
< |
glVertex3d(conev[i][0] + disp[0], conev[i][1] + disp[1], |
437 |
< |
conev[i][2] + disp[2]); |
438 |
< |
/* connect last side to first */ |
439 |
< |
glVertex3d(conev[0][0] + disp[0], conev[0][1] + disp[1], |
440 |
< |
conev[0][2] + disp[2]); |
441 |
< |
glEnd(); /* done */ |
442 |
< |
} |
432 |
> |
double d; |
433 |
|
|
434 |
< |
|
435 |
< |
#define LEAFSIZ (3*sizeof(float)+sizeof(int4)+\ |
436 |
< |
sizeof(TMbright)+7*sizeof(BYTE)) |
437 |
< |
|
438 |
< |
static |
439 |
< |
AllocValues(n) /* allocate space for n values */ |
450 |
< |
register int n; |
451 |
< |
{ |
452 |
< |
unsigned nbytes; |
453 |
< |
register unsigned i; |
454 |
< |
|
455 |
< |
if (n <= 0) |
456 |
< |
return(0); |
457 |
< |
if (rV.nl >= n) |
458 |
< |
return(rV.nl); |
459 |
< |
else if (rV.nl > 0) |
460 |
< |
free(rV.base); |
461 |
< |
/* round space up to nearest power of 2 */ |
462 |
< |
nbytes = n*LEAFSIZ + 8; |
463 |
< |
for (i = 1024; nbytes > i; i <<= 1) |
464 |
< |
; |
465 |
< |
n = (i - 8) / LEAFSIZ; /* should we make sure n is even? */ |
466 |
< |
rV.base = (char *)malloc(n*LEAFSIZ); |
467 |
< |
if (rV.base == NULL) |
468 |
< |
return(0); |
469 |
< |
/* assign larger alignment types earlier */ |
470 |
< |
rV.wp = (float (*)[3])rV.base; |
471 |
< |
rV.wd = (int4 *)(rV.wp + n); |
472 |
< |
rV.brt = (TMbright *)(rV.wd + n); |
473 |
< |
rV.chr = (BYTE (*)[3])(rV.brt + n); |
474 |
< |
rV.rgb = (BYTE (*)[3])(rV.chr + n); |
475 |
< |
rV.alpha = (BYTE *)(rV.rgb + n); |
476 |
< |
rV.nl = n; |
477 |
< |
rV.drl = rV.tml = rV.bl = rV.tl = 0; |
478 |
< |
return(n); |
434 |
> |
setstereobuf(STEREO_BUFFER_RIGHT); |
435 |
> |
glMatrixMode(GL_MODELVIEW); |
436 |
> |
glPushMatrix(); |
437 |
> |
d = -eyesepdist / sqrt(odev.v.hn2); |
438 |
> |
glTranslated(d*odev.v.hvec[0], d*odev.v.hvec[1], d*odev.v.hvec[2]); |
439 |
> |
checkglerr("setting right view"); |
440 |
|
} |
441 |
|
|
481 |
– |
#undef LEAFSIZ |
442 |
|
|
483 |
– |
|
443 |
|
static |
444 |
< |
FreeValues() /* free our allocated values */ |
444 |
> |
popright() /* pop off right view */ |
445 |
|
{ |
446 |
< |
if (rV.nl <= 0) |
447 |
< |
return; |
448 |
< |
free(rV.base); |
490 |
< |
rV.base = NULL; |
491 |
< |
rV.nl = 0; |
446 |
> |
glMatrixMode(GL_MODELVIEW); |
447 |
> |
glPopMatrix(); |
448 |
> |
setstereobuf(STEREO_BUFFER_LEFT); |
449 |
|
} |
450 |
+ |
#endif |
451 |
|
|
452 |
|
|
495 |
– |
static |
496 |
– |
TMapValues(redo) /* map our values to RGB */ |
497 |
– |
int redo; |
498 |
– |
{ |
499 |
– |
int aorg, alen, borg, blen; |
500 |
– |
/* recompute mapping? */ |
501 |
– |
if (redo) |
502 |
– |
rV.tml = rV.bl; |
503 |
– |
/* already done? */ |
504 |
– |
if (rV.tml == rV.tl) |
505 |
– |
return(1); |
506 |
– |
/* compute segments */ |
507 |
– |
aorg = rV.tml; |
508 |
– |
if (rV.tl >= aorg) { |
509 |
– |
alen = rV.tl - aorg; |
510 |
– |
blen = 0; |
511 |
– |
} else { |
512 |
– |
alen = rV.nl - aorg; |
513 |
– |
borg = 0; |
514 |
– |
blen = rV.tl; |
515 |
– |
} |
516 |
– |
/* (re)compute tone mapping? */ |
517 |
– |
if (rV.tml == rV.bl) { |
518 |
– |
tmClearHisto(); |
519 |
– |
tmAddHisto(rV.brt+aorg, alen, 1); |
520 |
– |
if (blen > 0) |
521 |
– |
tmAddHisto(rV.brt+borg, blen, 1); |
522 |
– |
if (tmComputeMapping(0., 0., 0.) != TM_E_OK) |
523 |
– |
return(0); |
524 |
– |
rV.drl = rV.bl; |
525 |
– |
} |
526 |
– |
if (tmMapPixels(rV.rgb+aorg, rV.brt+aorg, |
527 |
– |
rV.chr+aorg, alen) != TM_E_OK) |
528 |
– |
return(0); |
529 |
– |
if (blen > 0) |
530 |
– |
tmMapPixels(rV.rgb+borg, rV.brt+borg, |
531 |
– |
rV.chr+borg, blen); |
532 |
– |
/* compute unique alpha values */ |
533 |
– |
rV.tml = rV.tl; |
534 |
– |
return(1); |
535 |
– |
} |
536 |
– |
|
537 |
– |
|
453 |
|
static int |
454 |
< |
Compost(pct) /* free up some values */ |
540 |
< |
int pct; |
454 |
> |
mytmflags() /* figure out tone mapping flags */ |
455 |
|
{ |
456 |
< |
int nused, nclear, nmapped, ndrawn; |
457 |
< |
/* figure out how many values to clear */ |
458 |
< |
nclear = rV.nl * pct / 100; |
459 |
< |
nused = rV.tl - rV.bl; |
460 |
< |
if (nused <= 0) nused += rV.nl; |
461 |
< |
nclear -= rV.nl - nused; |
462 |
< |
if (nclear <= 0) |
463 |
< |
return(0); |
464 |
< |
if (nclear >= nused) { /* clear them all */ |
465 |
< |
rV.drl = rV.tml = rV.bl = rV.tl = 0; |
466 |
< |
return(nused); |
467 |
< |
} |
554 |
< |
/* else clear values from bottom */ |
555 |
< |
ndrawn = rV.drl - rV.bl; |
556 |
< |
if (ndrawn < 0) ndrawn += rV.nl; |
557 |
< |
nmapped = rV.tml - rV.bl; |
558 |
< |
if (nmapped < 0) nmapped += rV.nl; |
559 |
< |
rV.bl += nclear; |
560 |
< |
if (rV.bl >= rV.nl) rV.bl -= rV.nl; |
561 |
< |
if (ndrawn < nclear) rV.drl = rV.bl; |
562 |
< |
if (nmapped < nclear) rV.tml = rV.bl; |
563 |
< |
return(nclear); |
456 |
> |
extern char *progname; |
457 |
> |
register char *cp, *tail; |
458 |
> |
/* find basic name */ |
459 |
> |
for (cp = tail = progname; *cp; cp++) |
460 |
> |
if (*cp == '/') |
461 |
> |
tail = cp+1; |
462 |
> |
for (cp = tail; *cp && *cp != '.'; cp++) |
463 |
> |
; |
464 |
> |
if (cp > tail && cp[-1] == 'h') |
465 |
> |
return(TM_F_HUMAN|TM_F_NOSTDERR); |
466 |
> |
else |
467 |
> |
return(TM_F_CAMERA|TM_F_NOSTDERR); |
468 |
|
} |
469 |
|
|
470 |
|
|
505 |
|
|
506 |
|
|
507 |
|
static |
508 |
< |
draw_grids() /* draw holodeck section grids */ |
508 |
> |
draw_grids(fore) /* draw holodeck section grids */ |
509 |
> |
int fore; |
510 |
|
{ |
511 |
< |
static GLubyte gridrgba[4] = {0x0, 0xff, 0xff, 0x00}; |
512 |
< |
|
513 |
< |
if (!mapped) |
514 |
< |
return; |
515 |
< |
glColor4ub(gridrgba[0], gridrgba[1], gridrgba[2], gridrgba[3]); |
611 |
< |
/* draw each grid line */ |
612 |
< |
glBegin(GL_LINES); |
511 |
> |
if (fore) |
512 |
> |
glColor4ub(0, 255, 255, 0); |
513 |
> |
else |
514 |
> |
glColor4ub(0, 0, 0, 0); |
515 |
> |
glBegin(GL_LINES); /* draw each grid line */ |
516 |
|
gridlines(draw3dline); |
517 |
|
glEnd(); |
518 |
+ |
checkglerr("drawing grid lines"); |
519 |
|
} |
520 |
|
|
521 |
|
|
618 |
– |
static int |
619 |
– |
FindValue(dx, dy) /* find a value on the display */ |
620 |
– |
int dx, dy; |
621 |
– |
{ |
622 |
– |
return(-1); /* not found */ |
623 |
– |
} |
624 |
– |
|
625 |
– |
|
522 |
|
static |
523 |
|
moveview(dx, dy, mov, orb) /* move our view */ |
524 |
|
int dx, dy, mov, orb; |
525 |
|
{ |
526 |
|
VIEW nv; |
527 |
< |
FVECT odir, v1; |
527 |
> |
FVECT odir, v1, wip; |
528 |
|
double d; |
529 |
|
register int li; |
530 |
|
/* start with old view */ |
531 |
|
copystruct(&nv, &odev.v); |
532 |
< |
/* change view direction */ |
533 |
< |
if (mov | orb) { |
534 |
< |
if ((li = FindValue(dx, dy)) < 0) |
532 |
> |
/* orient our motion */ |
533 |
> |
if (viewray(v1, odir, &odev.v, |
534 |
> |
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
535 |
> |
return(0); /* outside view */ |
536 |
> |
if (mov | orb) { /* moving relative to geometry */ |
537 |
> |
#ifdef DOBJ |
538 |
> |
d = dobj_trace(NULL, v1, odir); /* check objects */ |
539 |
> |
/* check holodeck */ |
540 |
> |
if ((li = smFindSamp(v1, odir)) >= 0) { |
541 |
> |
VCOPY(wip, rsL.wp[li]); |
542 |
> |
if (d < .99*FHUGE && d*d <= dist2(v1, wip)) |
543 |
> |
li = -1; /* object is closer */ |
544 |
> |
} else if (d >= .99*FHUGE) |
545 |
> |
return(0); /* nothing visible */ |
546 |
> |
if (li < 0) |
547 |
> |
VSUM(wip, v1, odir, d); /* else get object point */ |
548 |
> |
#else |
549 |
> |
if ((li = smFindSamp(v1, odir)) < 0) |
550 |
|
return(0); /* not on window */ |
551 |
< |
VSUM(odir, rV.wp[li], nv.vp, -1.); |
552 |
< |
} else { |
553 |
< |
if (viewray(nv.vp, nv.vdir, &odev.v, |
554 |
< |
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
555 |
< |
return(0); /* outside view */ |
645 |
< |
} |
551 |
> |
VCOPY(wip, rsL.wp[li]); |
552 |
> |
#endif |
553 |
> |
VSUM(odir, wip, odev.v.vp, -1.); |
554 |
> |
} else /* panning with constant viewpoint */ |
555 |
> |
VCOPY(nv.vdir, odir); |
556 |
|
if (orb && mov) { /* orbit left/right */ |
557 |
|
spinvector(odir, odir, nv.vup, d=MOVDEG*PI/180.*mov); |
558 |
< |
VSUM(nv.vp, rV.wp[li], odir, -1.); |
558 |
> |
VSUM(nv.vp, wip, odir, -1.); |
559 |
|
spinvector(nv.vdir, nv.vdir, nv.vup, d); |
560 |
|
} else if (orb) { /* orbit up/down */ |
561 |
|
fcross(v1, odir, nv.vup); |
562 |
|
if (normalize(v1) == 0.) |
563 |
|
return(0); |
564 |
|
spinvector(odir, odir, v1, d=MOVDEG*PI/180.*orb); |
565 |
< |
VSUM(nv.vp, rV.wp[li], odir, -1.); |
565 |
> |
VSUM(nv.vp, wip, odir, -1.); |
566 |
|
spinvector(nv.vdir, nv.vdir, v1, d); |
567 |
|
} else if (mov) { /* move forward/backward */ |
568 |
|
d = MOVPCT/100. * mov; |
570 |
|
} |
571 |
|
if (!mov ^ !orb && headlocked) { /* restore head height */ |
572 |
|
VSUM(v1, odev.v.vp, nv.vp, -1.); |
573 |
< |
d = DOT(v1, odev.v.vup); |
573 |
> |
d = DOT(v1, nv.vup); |
574 |
|
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
575 |
|
} |
576 |
|
if (setview(&nv) != NULL) |
587 |
|
{ |
588 |
|
int movdir = MOVDIR(ebut->button); |
589 |
|
int movorb = MOVORB(ebut->state); |
590 |
+ |
int qlevel = 99; |
591 |
+ |
time_t lasttime, thistime; |
592 |
+ |
int nframes; |
593 |
|
Window rootw, childw; |
594 |
|
int rootx, rooty, wx, wy; |
595 |
|
unsigned int statemask; |
596 |
|
|
597 |
< |
XNoOp(ourdisplay); |
597 |
> |
XNoOp(ourdisplay); /* makes sure we're not idle */ |
598 |
|
|
599 |
+ |
lasttime = time(0); nframes = 0; |
600 |
|
while (!XCheckMaskEvent(ourdisplay, |
601 |
|
ButtonReleaseMask, levptr(XEvent))) { |
602 |
< |
|
602 |
> |
/* get cursor position */ |
603 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
604 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
605 |
|
break; /* on another screen */ |
606 |
|
|
607 |
+ |
draw_grids(0); /* clear old grid lines */ |
608 |
+ |
#ifdef STEREO |
609 |
+ |
pushright(); draw_grids(0); popright(); |
610 |
+ |
#endif |
611 |
+ |
/* compute view motion */ |
612 |
|
if (!moveview(wx, odev.vres-1-wy, movdir, movorb)) { |
613 |
|
sleep(1); |
614 |
< |
continue; |
614 |
> |
lasttime++; |
615 |
> |
continue; /* cursor in bad place */ |
616 |
|
} |
617 |
< |
draw_grids(); |
618 |
< |
dev_flush(); |
617 |
> |
draw_grids(1); /* redraw grid */ |
618 |
> |
#ifdef STEREO |
619 |
> |
pushright(); |
620 |
> |
draw_grids(1); |
621 |
> |
smUpdate(&vwright, qlevel); |
622 |
> |
#ifdef DOBJ |
623 |
> |
dobj_render(); |
624 |
> |
#endif |
625 |
> |
popright(); |
626 |
> |
#endif |
627 |
> |
/* redraw mesh */ |
628 |
> |
smUpdate(&odev.v, qlevel); |
629 |
> |
#ifdef DOBJ |
630 |
> |
dobj_render(); /* redraw object */ |
631 |
> |
#endif |
632 |
> |
glFlush(); |
633 |
> |
nframes++; /* figure out good quality level */ |
634 |
> |
thistime = time(0); |
635 |
> |
if (thistime - lasttime >= 3 || |
636 |
> |
nframes > (int)(3*3*TARGETFPS)) { |
637 |
> |
qlevel = thistime<=lasttime ? 1000 : |
638 |
> |
(int)((double)nframes/(thistime-lasttime) |
639 |
> |
/ TARGETFPS * qlevel + 0.5); |
640 |
> |
lasttime = thistime; nframes = 0; |
641 |
> |
if (qlevel > 99) { |
642 |
> |
if (qlevel > 300) { /* put on the brakes */ |
643 |
> |
sleep(1); |
644 |
> |
lasttime++; |
645 |
> |
} |
646 |
> |
qlevel = 99; |
647 |
> |
} else if (qlevel < 1) |
648 |
> |
qlevel = 1; |
649 |
> |
} |
650 |
|
} |
651 |
|
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
652 |
|
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
654 |
|
wy = levptr(XButtonReleasedEvent)->y; |
655 |
|
moveview(wx, odev.vres-1-wy, movdir, movorb); |
656 |
|
} |
706 |
– |
dev_flush(); |
657 |
|
} |
658 |
|
|
659 |
|
|
660 |
|
static |
661 |
+ |
setglpersp(vp) /* set perspective view in GL */ |
662 |
+ |
register VIEW *vp; |
663 |
+ |
{ |
664 |
+ |
double d, xmin, xmax, ymin, ymax; |
665 |
+ |
|
666 |
+ |
if (mindpth >= maxdpth) { |
667 |
+ |
dev_zmin = 0.1; |
668 |
+ |
dev_zmax = 100.; |
669 |
+ |
} else { |
670 |
+ |
dev_zmin = 0.5*mindpth; |
671 |
+ |
dev_zmax = 1.5*maxdpth; |
672 |
+ |
if (dev_zmin > dev_zmax/100.) |
673 |
+ |
dev_zmin = dev_zmax/100.; |
674 |
+ |
} |
675 |
+ |
if (odev.v.vfore > FTINY) |
676 |
+ |
dev_zmin = odev.v.vfore; |
677 |
+ |
if (odev.v.vaft > FTINY) |
678 |
+ |
dev_zmax = odev.v.vaft; |
679 |
+ |
if (dev_zmin < dev_zmax/5000.) |
680 |
+ |
dev_zmin = dev_zmax/5000.; |
681 |
+ |
xmax = dev_zmin * tan(PI/180./2. * odev.v.horiz); |
682 |
+ |
xmin = -xmax; |
683 |
+ |
d = odev.v.hoff * (xmax - xmin); |
684 |
+ |
xmin += d; xmax += d; |
685 |
+ |
ymax = dev_zmin * tan(PI/180./2. * odev.v.vert); |
686 |
+ |
ymin = -ymax; |
687 |
+ |
d = odev.v.voff * (ymax - ymin); |
688 |
+ |
ymin += d; ymax += d; |
689 |
+ |
/* set view matrix */ |
690 |
+ |
glMatrixMode(GL_PROJECTION); |
691 |
+ |
glLoadIdentity(); |
692 |
+ |
glFrustum(xmin, xmax, ymin, ymax, dev_zmin, dev_zmax); |
693 |
+ |
gluLookAt(odev.v.vp[0], odev.v.vp[1], odev.v.vp[2], |
694 |
+ |
odev.v.vp[0] + odev.v.vdir[0], |
695 |
+ |
odev.v.vp[1] + odev.v.vdir[1], |
696 |
+ |
odev.v.vp[2] + odev.v.vdir[2], |
697 |
+ |
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
698 |
+ |
checkglerr("setting perspective view"); |
699 |
+ |
} |
700 |
+ |
|
701 |
+ |
|
702 |
+ |
static |
703 |
+ |
wipeclean() /* prepare for redraw */ |
704 |
+ |
{ |
705 |
+ |
/* clear depth buffer */ |
706 |
+ |
#ifdef STEREO |
707 |
+ |
setstereobuf(STEREO_BUFFER_RIGHT); |
708 |
+ |
glClear(GL_DEPTH_BUFFER_BIT); |
709 |
+ |
setstereobuf(STEREO_BUFFER_LEFT); |
710 |
+ |
#endif |
711 |
+ |
glClear(GL_DEPTH_BUFFER_BIT); |
712 |
+ |
smClean(); /* reset drawing routines */ |
713 |
+ |
setglpersp(&odev.v); /* reset view & clipping planes */ |
714 |
+ |
} |
715 |
+ |
|
716 |
+ |
|
717 |
+ |
static |
718 |
|
getkey(ekey) /* get input key */ |
719 |
|
register XKeyPressedEvent *ekey; |
720 |
|
{ |
745 |
|
inpresflags |= DFL(DC_RESUME); |
746 |
|
return; |
747 |
|
case CTRL('R'): /* redraw screen */ |
748 |
< |
TMapValues(1); |
742 |
< |
redraw(); |
748 |
> |
wipeclean(); |
749 |
|
return; |
750 |
|
case CTRL('L'): /* refresh from server */ |
751 |
|
if (inpresflags & DFL(DC_REDRAW)) |
752 |
|
return; |
753 |
+ |
setglpersp(&odev.v); /* reset clipping planes */ |
754 |
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
755 |
< |
glDrawBuffer(GL_FRONT); |
756 |
< |
glDisable(GL_DEPTH_TEST); |
757 |
< |
draw_grids(); |
755 |
> |
glDisable(GL_DEPTH_TEST); /* so grids will clear */ |
756 |
> |
draw_grids(1); |
757 |
> |
#ifdef STEREO |
758 |
> |
pushright(); |
759 |
> |
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
760 |
> |
draw_grids(1); |
761 |
> |
popright(); |
762 |
> |
#endif |
763 |
|
glEnable(GL_DEPTH_TEST); |
752 |
– |
glDrawBuffer(GL_FRONT_AND_BACK); |
764 |
|
glFlush(); |
765 |
< |
Compost(100); /* get rid of old values */ |
765 |
> |
smInit(rsL.max_samp); /* get rid of old values */ |
766 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
767 |
+ |
rayqleft = 0; /* hold off update */ |
768 |
|
return; |
769 |
|
case 'K': /* kill rtrace process(es) */ |
770 |
|
inpresflags |= DFL(DC_KILL); |
789 |
|
fixwindow(eexp) /* repair damage to window */ |
790 |
|
register XExposeEvent *eexp; |
791 |
|
{ |
792 |
< |
if (odev.hres == 0 || odev.vres == 0) { /* first exposure */ |
793 |
< |
odev.hres = eexp->width; |
794 |
< |
odev.vres = eexp->height; |
792 |
> |
if (odev.hres == 0 | odev.vres == 0) { /* first exposure */ |
793 |
> |
resizewindow((XConfigureEvent *)eexp); |
794 |
> |
return; |
795 |
|
} |
796 |
< |
if (eexp->width == odev.hres && eexp->height == odev.vres) |
797 |
< |
TMapValues(1); |
798 |
< |
if (!eexp->count) |
787 |
< |
redraw(); |
796 |
> |
if (eexp->count) /* wait for final exposure */ |
797 |
> |
return; |
798 |
> |
wipeclean(); /* clear depth */ |
799 |
|
} |
800 |
|
|
801 |
|
|
803 |
|
resizewindow(ersz) /* resize window */ |
804 |
|
register XConfigureEvent *ersz; |
805 |
|
{ |
806 |
+ |
glViewport(0, 0, ersz->width, ersz->height); |
807 |
+ |
|
808 |
|
if (ersz->width == odev.hres && ersz->height == odev.vres) |
809 |
|
return; |
810 |
|
|
813 |
|
|
814 |
|
odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
815 |
|
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
803 |
– |
|
804 |
– |
setGLview(); |
816 |
|
|
817 |
|
inpresflags |= DFL(DC_SETVIEW); |
818 |
|
} |