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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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/* Copyright (c) 1999 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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#include "standard.h" |
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|
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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 "x11icon.h" |
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|
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#ifndef RAYQLEN |
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#define RAYQLEN 10240 /* max. rays to queue before flush */ |
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#define RAYQLEN 0 /* max. rays to queue before flush */ |
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#endif |
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|
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#ifndef PORTALP |
43 |
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#define PORTRED 2 /* portal red color */ |
45 |
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#define PORTGRN -1 /* portal green left alone */ |
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#define PORTBLU 128 /* portal blue color */ |
47 |
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#define PORTALP -1 /* don't use alpha channel */ |
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#ifndef MINWIDTH |
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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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#endif |
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#define isportal(c) ((PORTRED<0 || (c)[0]==PORTRED) && \ |
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(PORTGRN<0 || (c)[1]==PORTGRN) && \ |
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(PORTBLU<0 || (c)[2]==PORTBLU) && \ |
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(PORTALP<0 || (c)[3]==PORTALP)) |
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#ifndef VIEWDIST |
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#define VIEWDIST 356 /* assumed viewing distance (mm) */ |
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#endif |
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#ifndef BORWIDTH |
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#define BORWIDTH 5 /* border width */ |
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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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|
56 |
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#define VWHEADLOCK 01 /* head position is locked flag */ |
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#define VWPERSP 02 /* perspective view is set */ |
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#define VWORTHO 04 /* orthographic view is set */ |
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#define VWCHANGE 010 /* view has changed */ |
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#define VWSTEADY 020 /* view is now steady */ |
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#define VWMAPPED 040 /* window is mapped */ |
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|
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#define GAMMA 1.4 /* default gamma correction */ |
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|
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#define FRAMESTATE(s) (((s)&(ShiftMask|ControlMask))==(ShiftMask|ControlMask)) |
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#define MOVDEG (-5) /* degrees to orbit CW/down /frame */ |
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#define MOVORB(s) ((s)&ShiftMask ? 1 : (s)&ControlMask ? -1 : 0) |
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|
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#define MINWIDTH 480 /* minimum graphics window width */ |
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#define MINHEIGHT 400 /* minimum graphics window height */ |
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|
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#define VIEWDIST 356 /* assumed viewing distance (mm) */ |
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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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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 ourblack=0, ourwhite=~0; |
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|
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static Display *ourdisplay = NULL; /* our display */ |
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static int inpresflags; /* input result flags */ |
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static int headlocked; /* lock vertical motion */ |
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static int viewflags; /* what's happening with view */ |
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|
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static int isperspective; /* perspective/ortho view */ |
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|
122 |
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static int viewsteady; /* is view steady? */ |
123 |
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|
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static int resizewindow(), getevent(), getkey(), moveview(), wipeclean(), |
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xferdepth(), freedepth(), setglortho(), |
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setglpersp(), getframe(), getmove(), fixwindow(), mytmflags(); |
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{ |
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extern char *getenv(); |
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static RGBPRIMS myprims = STDPRIMS; |
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#if (PORTALP<0) |
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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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#else |
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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_ALPHA_SIZE,2, GLX_DEPTH_SIZE,15, None}; |
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#endif |
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static int atlBest[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
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GLX_RED_SIZE,8, GLX_GREEN_SIZE,8, |
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GLX_BLUE_SIZE,8, GLX_DEPTH_SIZE,15, None}; |
140 |
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static int atlOK[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
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GLX_RED_SIZE,4, GLX_GREEN_SIZE,4, |
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GLX_BLUE_SIZE,4, GLX_DEPTH_SIZE,15, None}; |
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char *ev; |
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double gamval = GAMMA; |
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RGBPRIMP dpri = stdprims; |
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#endif |
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/* find a usable visual */ |
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ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlBest); |
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if (ourvinf == NULL) |
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ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlOK); |
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CHECK(ourvinf==NULL, USER, "no suitable visuals available"); |
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/* get a context */ |
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gctx = glXCreateContext(ourdisplay, ourvinf, NULL, GL_TRUE); |
228 |
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glXMakeCurrent(ourdisplay, gwind, gctx); |
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glEnable(GL_DEPTH_TEST); |
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glDepthFunc(GL_LEQUAL); |
231 |
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glDisable(GL_DITHER); |
231 |
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glClearColor(0, 0, 0, 0); |
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glFrontFace(GL_CCW); |
233 |
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glDisable(GL_CULL_FACE); |
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glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); |
235 |
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); |
236 |
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glPixelStorei(GL_PACK_ALIGNMENT, 1); |
237 |
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
238 |
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/* figure out sensible view */ |
239 |
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pwidth = (double)DisplayWidthMM(ourdisplay, ourscreen) / |
240 |
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DisplayWidth(ourdisplay, ourscreen); |
247 |
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checkglerr("setting rendering parameters"); |
248 |
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copystruct(&odev.v, &stdview); |
249 |
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odev.v.type = VT_PER; |
250 |
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headlocked = 0; /* free up head movement */ |
257 |
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viewsteady = 1; /* view starts static */ |
258 |
< |
isperspective = -1; /* but no view set, yet */ |
250 |
> |
viewflags = VWSTEADY; /* view starts static */ |
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/* map the window */ |
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XMapWindow(ourdisplay, gwind); |
253 |
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dev_input(); /* sets size and view angles */ |
254 |
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if (!odInit(DisplayWidth(ourdisplay,ourscreen) * |
255 |
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DisplayHeight(ourdisplay,ourscreen) / 4)) |
255 |
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DisplayHeight(ourdisplay,ourscreen) / 3)) |
256 |
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error(SYSTEM, "insufficient memory for value storage"); |
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odev.name = id; |
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odev.firstuse = 1; /* can't recycle samples */ |
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|
285 |
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dev_clear() /* clear our representation */ |
286 |
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{ |
287 |
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wipeclean(); |
287 |
> |
viewflags |= VWCHANGE; /* pretend our view has changed */ |
288 |
> |
wipeclean(); /* clean off display and samples */ |
289 |
> |
dev_flush(); /* redraw geometry & get depth */ |
290 |
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rayqleft = 0; /* hold off update */ |
291 |
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} |
292 |
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|
333 |
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dev_input(); /* get resize event */ |
334 |
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} |
335 |
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copystruct(&odev.v, nv); /* setview() already called */ |
336 |
+ |
viewflags |= VWCHANGE; |
337 |
+ |
} |
338 |
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#ifdef STEREO |
339 |
< |
copystruct(&vwright, nv); |
340 |
< |
d = eyesepdist / sqrt(nv->hn2); |
341 |
< |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
342 |
< |
/* setview(&vwright); -- Unnecessary */ |
339 |
> |
copystruct(&vwright, nv); |
340 |
> |
d = eyesepdist / sqrt(nv->hn2); |
341 |
> |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
342 |
> |
/* setview(&vwright); -- Unnecessary */ |
343 |
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#endif |
348 |
– |
} else |
349 |
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viewsteady = 1; |
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wipeclean(); |
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return(1); |
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} |
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char *cmd, *args; |
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{ |
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#ifdef DOBJ |
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if (dobj_command(cmd, args) >= 0) |
378 |
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int vischange; |
379 |
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|
380 |
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if ((vischange = dobj_command(cmd, args)) >= 0) { |
381 |
> |
if (vischange) { |
382 |
> |
imm_mode = beam_sync(1) > 0; |
383 |
> |
dev_clear(); |
384 |
> |
} |
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return; |
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} |
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#endif |
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sprintf(errmsg, "%s: unknown command", cmd); |
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error(COMMAND, errmsg); |
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{ |
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int ndrawn; |
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|
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if (mapped && isperspective > 0) { |
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if ((viewflags&(VWMAPPED|VWPERSP)) == (VWMAPPED|VWPERSP)) { |
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#ifdef STEREO |
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pushright(); /* draw right eye */ |
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ndrawn = gmDrawGeom(); |
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#ifdef DOBJ |
451 |
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ndrawn += dobj_render(); |
452 |
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#endif |
452 |
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if (ndrawn) |
453 |
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gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
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checkglerr("rendering right eye"); |
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popright(); /* draw left eye */ |
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#endif |
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#ifdef DOBJ |
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ndrawn += dobj_render(); |
459 |
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#endif |
460 |
< |
if (ndrawn) |
462 |
< |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
460 |
> |
glXSwapBuffers(ourdisplay, gwind); |
461 |
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checkglerr("rendering base view"); |
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} |
463 |
< |
if (mapped && viewsteady) |
464 |
< |
if (isperspective > 0) { /* first time after steady */ |
465 |
< |
if (ndrawn) |
466 |
< |
xferdepth(); /* transfer and clear depth */ |
467 |
< |
setglortho(); /* set orthographic view */ |
468 |
< |
} else if (!isperspective) { |
463 |
> |
if ((viewflags&(VWMAPPED|VWSTEADY|VWPERSP|VWORTHO)) == |
464 |
> |
(VWMAPPED|VWSTEADY|VWPERSP)) { |
465 |
> |
/* first time after steady */ |
466 |
> |
if (ndrawn) |
467 |
> |
xferdepth(); /* transfer and clear depth */ |
468 |
> |
setglortho(); /* set orthographic view */ |
469 |
> |
|
470 |
> |
} |
471 |
> |
if ((viewflags&(VWMAPPED|VWSTEADY|VWPERSP|VWORTHO)) == |
472 |
> |
(VWMAPPED|VWSTEADY|VWORTHO)) { |
473 |
> |
/* else update cones */ |
474 |
|
#ifdef STEREO |
475 |
< |
pushright(); |
476 |
< |
odUpdate(1); /* draw right eye */ |
477 |
< |
popright(); |
475 |
> |
pushright(); |
476 |
> |
odUpdate(1); /* draw right eye */ |
477 |
> |
popright(); |
478 |
|
#endif |
479 |
< |
odUpdate(0); /* draw left eye */ |
480 |
< |
} |
481 |
< |
glFlush(); /* flush OpenGL */ |
479 |
> |
odUpdate(0); /* draw left eye */ |
480 |
> |
glFlush(); /* flush OpenGL */ |
481 |
> |
} |
482 |
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rayqleft = RAYQLEN; |
483 |
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/* flush X11 and return # pending */ |
484 |
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return(odev.inpready = XPending(ourdisplay)); |
502 |
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xferdepth() /* load and clear depth buffer */ |
503 |
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{ |
504 |
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register GLfloat *dbp; |
505 |
< |
register GLubyte *cbuf; |
505 |
> |
register GLubyte *pbuf; |
506 |
|
|
507 |
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if (depthbuffer == NULL) { /* allocate private depth buffer */ |
508 |
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#ifdef STEREO |
515 |
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} |
516 |
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/* allocate alpha buffer for portals */ |
517 |
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if (gmPortals) |
518 |
< |
cbuf = (GLubyte *)malloc(odev.hres*odev.vres* |
516 |
< |
(4*sizeof(GLubyte))); |
518 |
> |
pbuf = (GLubyte *)malloc(odev.hres*odev.vres*sizeof(GLubyte)); |
519 |
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else |
520 |
< |
cbuf = NULL; |
520 |
> |
pbuf = NULL; |
521 |
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#ifdef STEREO |
522 |
< |
setstereobuf(STEREO_BUFFER_RIGHT); |
522 |
> |
pushright(); |
523 |
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glReadPixels(0, 0, odev.hres, odev.vres, |
524 |
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GL_DEPTH_COMPONENT, GL_FLOAT, depthright); |
525 |
< |
if (cbuf != NULL) |
525 |
> |
if (pbuf != NULL) { |
526 |
> |
glClear(GL_COLOR_BUFFER_BIT); |
527 |
> |
gmDrawPortals(0xff, -1, -1, -1); |
528 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
529 |
< |
GL_RGBA, GL_UNSIGNED_BYTE, cbuf); |
529 |
> |
GL_RED, GL_UNSIGNED_BYTE, pbuf); |
530 |
> |
} |
531 |
|
for (dbp = depthright + odev.hres*odev.vres; dbp-- > depthright; ) |
532 |
< |
if (cbuf != NULL && isportal(cbuf+4*(dbp-depthright))) |
532 |
> |
if (pbuf != NULL && pbuf[dbp-depthright]&0x40) |
533 |
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*dbp = FHUGE; |
534 |
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else |
535 |
|
*dbp = mapdepth(*dbp); |
536 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
532 |
– |
setstereobuf(STEREO_BUFFER_LEFT); |
537 |
|
odDepthMap(1, depthright); |
538 |
+ |
popright(); |
539 |
|
#endif |
540 |
|
/* read back depth buffer */ |
541 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
542 |
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GL_DEPTH_COMPONENT, GL_FLOAT, depthbuffer); |
543 |
< |
if (cbuf != NULL) |
543 |
> |
if (pbuf != NULL) { |
544 |
> |
glClear(GL_COLOR_BUFFER_BIT); /* find portals */ |
545 |
> |
gmDrawPortals(0xff, -1, -1, -1); |
546 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
547 |
< |
GL_RGBA, GL_UNSIGNED_BYTE, cbuf); |
547 |
> |
GL_RED, GL_UNSIGNED_BYTE, pbuf); |
548 |
> |
#ifdef DEBUG |
549 |
> |
glXSwapBuffers(ourdisplay, gwind); |
550 |
> |
#endif |
551 |
> |
} |
552 |
|
for (dbp = depthbuffer + odev.hres*odev.vres; dbp-- > depthbuffer; ) |
553 |
< |
if (cbuf != NULL && isportal(cbuf+4*(dbp-depthbuffer))) |
553 |
> |
if (pbuf != NULL && pbuf[dbp-depthbuffer]&0x40) |
554 |
|
*dbp = FHUGE; |
555 |
|
else |
556 |
|
*dbp = mapdepth(*dbp); |
557 |
|
glClear(GL_DEPTH_BUFFER_BIT); /* clear system depth buffer */ |
547 |
– |
if (cbuf != NULL) |
548 |
– |
free((char *)cbuf); /* free our color buffer */ |
558 |
|
odDepthMap(0, depthbuffer); /* transfer depth data */ |
559 |
+ |
if (pbuf != NULL) |
560 |
+ |
free((char *)pbuf); /* free our portal buffer */ |
561 |
|
} |
562 |
|
|
563 |
|
|
583 |
|
FVECT direc; |
584 |
|
{ |
585 |
|
GLfloat gldepth; |
575 |
– |
GLubyte glcolor[4]; |
586 |
|
double dist; |
587 |
|
|
588 |
|
if (dx<0 | dx>=odev.hres | dy<0 | dy>=odev.vres) |
592 |
|
else { |
593 |
|
glReadPixels(dx,dy, 1,1, GL_DEPTH_COMPONENT, |
594 |
|
GL_FLOAT, &gldepth); |
585 |
– |
if (gmPortals) { |
586 |
– |
glReadPixels(dx,dy, 1,1, GL_RGBA, |
587 |
– |
GL_UNSIGNED_BYTE, glcolor); |
588 |
– |
if (isportal(glcolor)) |
589 |
– |
return(FHUGE); |
590 |
– |
} |
595 |
|
dist = mapdepth(gldepth); |
596 |
|
} |
597 |
|
if (dist >= .99*FHUGE) |
607 |
|
double d; |
608 |
|
|
609 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
610 |
< |
if (isperspective > 0) { |
610 |
> |
if (viewflags & VWPERSP) { |
611 |
|
glMatrixMode(GL_MODELVIEW); |
612 |
|
glPushMatrix(); |
613 |
|
d = -eyesepdist / sqrt(odev.v.hn2); |
621 |
|
static |
622 |
|
popright() /* pop off right view & buffer */ |
623 |
|
{ |
624 |
< |
if (isperspective > 0) { |
624 |
> |
if (viewflags & VWPERSP) { |
625 |
|
glMatrixMode(GL_MODELVIEW); |
626 |
|
glPopMatrix(); |
627 |
|
} |
664 |
|
resizewindow(levptr(XConfigureEvent)); |
665 |
|
break; |
666 |
|
case UnmapNotify: |
667 |
< |
mapped = 0; |
667 |
> |
viewflags &= ~VWMAPPED; |
668 |
|
break; |
669 |
|
case MapNotify: |
670 |
|
odRemap(0); |
671 |
< |
mapped = 1; |
671 |
> |
viewflags |= VWMAPPED; |
672 |
|
break; |
673 |
|
case Expose: |
674 |
|
fixwindow(levptr(XExposeEvent)); |
702 |
|
glPushAttrib(GL_LIGHTING_BIT|GL_ENABLE_BIT); |
703 |
|
glDisable(GL_LIGHTING); |
704 |
|
if (fore) |
705 |
< |
glColor3ub(0, 255, 255); |
705 |
> |
glColor3ub(4, 250, 250); |
706 |
|
else |
707 |
|
glColor3ub(0, 0, 0); |
708 |
|
glBegin(GL_LINES); /* draw each grid line */ |
755 |
|
d = MOVPCT/100. * mov; |
756 |
|
VSUM(nv.vp, nv.vp, odir, d); |
757 |
|
} |
758 |
< |
if (!mov ^ !orb && headlocked) { /* restore head height */ |
758 |
> |
if (!mov ^ !orb && viewflags&VWHEADLOCK) { /* restore height */ |
759 |
|
VSUM(v1, odev.v.vp, nv.vp, -1.); |
760 |
|
d = DOT(v1, nv.vup); |
761 |
|
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
804 |
|
|
805 |
|
XNoOp(ourdisplay); /* makes sure we're not idle */ |
806 |
|
|
807 |
< |
viewsteady = 0; /* flag moving view */ |
808 |
< |
setglpersp(&odev.v); /* start us off in perspective */ |
807 |
> |
viewflags &= ~VWSTEADY; /* flag moving view */ |
808 |
> |
setglpersp(); /* start us off in perspective */ |
809 |
|
while (!XCheckMaskEvent(ourdisplay, |
810 |
|
ButtonReleaseMask, levptr(XEvent))) { |
811 |
|
/* get cursor position */ |
825 |
|
#ifdef DOBJ |
826 |
|
ndrawn += dobj_render(); |
827 |
|
#endif |
824 |
– |
if (ndrawn) |
825 |
– |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
828 |
|
popright(); |
829 |
|
#endif |
830 |
|
/* redraw octrees */ |
832 |
|
#ifdef DOBJ |
833 |
|
ndrawn += dobj_render(); /* redraw objects */ |
834 |
|
#endif |
835 |
< |
if (ndrawn) |
836 |
< |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
835 |
< |
glFlush(); |
836 |
< |
if (!ndrawn) { |
835 |
> |
glXSwapBuffers(ourdisplay, gwind); |
836 |
> |
if (!ndrawn) |
837 |
|
sleep(1); /* for reasonable interaction */ |
838 |
– |
#ifdef STEREO |
839 |
– |
pushright(); |
840 |
– |
draw_grids(0); |
841 |
– |
popright(); |
842 |
– |
#endif |
843 |
– |
draw_grids(0); |
844 |
– |
} |
838 |
|
} |
839 |
|
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
840 |
|
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
842 |
|
wy = levptr(XButtonReleasedEvent)->y; |
843 |
|
moveview(wx, odev.vres-1-wy, movdir, movorb); |
844 |
|
} |
845 |
+ |
viewflags |= VWSTEADY; /* done goofing around */ |
846 |
|
} |
847 |
|
|
848 |
|
|
849 |
|
static |
850 |
< |
setglpersp(vp) /* set perspective view in GL */ |
857 |
< |
register VIEW *vp; |
850 |
> |
setglpersp() /* set perspective view in GL */ |
851 |
|
{ |
852 |
|
double d, xmin, xmax, ymin, ymax; |
853 |
|
GLfloat vec[4]; |
859 |
|
dev_zmax = 100.; |
860 |
|
} else { |
861 |
|
dev_zmin = 0.5*depthlim[0]; |
862 |
< |
dev_zmax = 1.75*depthlim[1]; |
862 |
> |
dev_zmax = 1.25*depthlim[1]; |
863 |
|
if (dev_zmin > dev_zmax/5.) |
864 |
|
dev_zmin = dev_zmax/5.; |
865 |
|
} |
867 |
|
dev_zmin = odev.v.vfore; |
868 |
|
if (odev.v.vaft > FTINY) |
869 |
|
dev_zmax = odev.v.vaft; |
870 |
< |
if (dev_zmin < dev_zmax/100.) |
871 |
< |
dev_zmin = dev_zmax/100.; |
870 |
> |
if (dev_zmin*500. < dev_zmax) |
871 |
> |
dev_zmax = dev_zmin*500.; |
872 |
|
setzrat(); |
873 |
|
xmax = dev_zmin * tan(PI/180./2. * odev.v.horiz); |
874 |
|
xmin = -xmax; |
888 |
|
odev.v.vp[2] + odev.v.vdir[2], |
889 |
|
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
890 |
|
checkglerr("setting perspective view"); |
898 |
– |
isperspective = 1; |
891 |
|
vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.; |
892 |
|
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, vec); |
893 |
|
vec[0] = -odev.v.vdir[0]; |
903 |
|
glEnable(GL_LIGHT0); |
904 |
|
glEnable(GL_LIGHTING); /* light our GL objects */ |
905 |
|
glShadeModel(GL_SMOOTH); |
906 |
+ |
viewflags &= ~VWORTHO; |
907 |
+ |
viewflags |= VWPERSP; |
908 |
|
} |
909 |
|
|
910 |
|
|
911 |
|
static |
912 |
|
setglortho() /* set up orthographic view for cone drawing */ |
913 |
|
{ |
914 |
+ |
glDrawBuffer(GL_FRONT); /* use single-buffer mode */ |
915 |
|
/* set view matrix */ |
916 |
|
glMatrixMode(GL_PROJECTION); |
917 |
|
glLoadIdentity(); |
918 |
|
glOrtho(0., (double)odev.hres, 0., (double)odev.vres, |
919 |
|
0.001*OMAXDEPTH, 1.001*(-OMAXDEPTH)); |
920 |
|
checkglerr("setting orthographic view"); |
926 |
– |
isperspective = 0; |
921 |
|
glDisable(GL_LIGHTING); /* cones are constant color */ |
922 |
|
glShadeModel(GL_FLAT); |
923 |
+ |
viewflags &= ~VWPERSP; |
924 |
+ |
viewflags |= VWORTHO; |
925 |
|
} |
926 |
|
|
927 |
|
|
928 |
|
static |
929 |
|
wipeclean() /* prepare for redraw */ |
930 |
|
{ |
931 |
< |
/* clear depth buffer */ |
931 |
> |
glDrawBuffer(GL_BACK); /* use double-buffer mode */ |
932 |
> |
glReadBuffer(GL_BACK); |
933 |
> |
/* clear buffers */ |
934 |
|
#ifdef STEREO |
935 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
936 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
936 |
> |
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
937 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
938 |
|
#endif |
939 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
942 |
< |
if (viewsteady) /* clear samples if steady */ |
943 |
< |
odClean(); |
939 |
> |
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
940 |
|
freedepth(); |
941 |
< |
setglpersp(&odev.v); /* reset view & clipping planes */ |
941 |
> |
if ((viewflags&(VWCHANGE|VWSTEADY)) == |
942 |
> |
(VWCHANGE|VWSTEADY)) { /* clear samples if new */ |
943 |
> |
odClean(); |
944 |
> |
viewflags &= ~VWCHANGE; /* change noted */ |
945 |
> |
} else if (viewflags & VWSTEADY) |
946 |
> |
odRedrawAll(); |
947 |
> |
setglpersp(); /* reset view & clipping planes */ |
948 |
|
} |
949 |
|
|
950 |
|
|
963 |
|
return; |
964 |
|
switch (buf[0]) { |
965 |
|
case 'h': /* turn on height motion lock */ |
966 |
< |
headlocked = 1; |
966 |
> |
viewflags |= VWHEADLOCK; |
967 |
|
return; |
968 |
|
case 'H': /* turn off height motion lock */ |
969 |
< |
headlocked = 0; |
969 |
> |
viewflags &= ~VWHEADLOCK; |
970 |
|
return; |
971 |
|
case 'l': /* retrieve last view */ |
972 |
|
inpresflags |= DFL(DC_LASTVIEW); |
994 |
|
inpresflags |= DFL(DC_RESUME); |
995 |
|
return; |
996 |
|
case CTRL('R'): /* redraw screen */ |
997 |
< |
odRemap(0); |
998 |
< |
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
997 |
> |
odRemap(0); /* new tone mapping */ |
998 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
999 |
|
#ifdef STEREO |
1000 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
1001 |
< |
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
1001 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
1002 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
1003 |
|
#endif |
1004 |
|
return; |
1005 |
|
case CTRL('L'): /* refresh from server */ |
1006 |
|
if (inpresflags & DFL(DC_REDRAW)) |
1007 |
< |
return; |
1007 |
> |
return; /* already called */ |
1008 |
|
XRaiseWindow(ourdisplay, gwind); |
1009 |
< |
XFlush(ourdisplay); |
1010 |
< |
sleep(1); |
1011 |
< |
wipeclean(); /* fresh display */ |
1012 |
< |
odRemap(1); /* fresh tone mapping */ |
1011 |
< |
dev_flush(); /* draw octrees */ |
1009 |
> |
XFlush(ourdisplay); /* raise up window */ |
1010 |
> |
sleep(1); /* wait for restacking */ |
1011 |
> |
dev_clear(); /* clear buffer and samples */ |
1012 |
> |
odRemap(1); /* start fresh histogram */ |
1013 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
1013 |
– |
rayqleft = 0; /* hold off update */ |
1014 |
|
return; |
1015 |
|
case 'K': /* kill rtrace process(es) */ |
1016 |
|
inpresflags |= DFL(DC_KILL); |
1043 |
|
} |
1044 |
|
xmin = eexp->x; xmax = eexp->x + eexp->width; |
1045 |
|
ymin = odev.vres - eexp->y - eexp->height; ymax = odev.vres - eexp->y; |
1046 |
+ |
|
1047 |
+ |
if (xmin <= 0 && xmax >= odev.hres-1 && |
1048 |
+ |
ymin <= 0 && ymax >= odev.vres) { |
1049 |
+ |
DCHECK(eexp->count, WARNING, "multiple clear in fixwindow"); |
1050 |
+ |
wipeclean(); /* make sure we're go */ |
1051 |
+ |
return; |
1052 |
+ |
} |
1053 |
|
/* clear portion of depth */ |
1054 |
|
glPushAttrib(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
1055 |
|
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); |
1092 |
|
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
1093 |
|
|
1094 |
|
inpresflags |= DFL(DC_SETVIEW); |
1095 |
+ |
viewflags |= VWCHANGE; |
1096 |
|
} |