1 |
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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
2 |
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|
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#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ SGI"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
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#endif |
6 |
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|
4 |
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/* |
5 |
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* OpenGL driver for holodeck display. |
6 |
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* Based on GLX driver using T-mesh. |
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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 <X11/extensions/SGIStereo.h> |
26 |
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#endif |
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#include <time.h> |
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|
29 |
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#include "rhd_odraw.h" |
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#ifdef DOBJ |
34 |
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#include "x11icon.h" |
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|
36 |
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#ifndef RAYQLEN |
37 |
< |
#define RAYQLEN 10240 /* max. rays to queue before flush */ |
37 |
> |
#define RAYQLEN 0 /* max. rays to queue before flush */ |
38 |
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#endif |
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#ifndef MINWIDTH |
40 |
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#define MINWIDTH 480 /* minimum graphics window width */ |
41 |
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#define MINHEIGHT 400 /* minimum graphics window height */ |
42 |
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#endif |
43 |
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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 */ |
48 |
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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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|
54 |
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#define VWHEADLOCK 01 /* head position is locked flag */ |
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#define VWPERSP 02 /* perspective view is set */ |
56 |
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#define VWORTHO 04 /* orthographic view is set */ |
57 |
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#define VWCHANGE 010 /* view has changed */ |
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#define VWSTEADY 020 /* view is now steady */ |
59 |
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#define VWMAPPED 040 /* window is mapped */ |
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|
61 |
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#define GAMMA 1.4 /* default gamma correction */ |
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|
63 |
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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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113 |
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static int headlocked; /* lock vertical motion */ |
113 |
> |
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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111 |
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static int viewsteady; /* is view steady? */ |
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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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static int atlBest[] = {GLX_RGBA, GLX_RED_SIZE,8, |
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GLX_GREEN_SIZE,8, GLX_BLUE_SIZE,8, |
137 |
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GLX_DEPTH_SIZE,15, None}; |
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static int atlBest[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
136 |
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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}; |
138 |
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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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/* open display server */ |
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ourdisplay = XOpenDisplay(NULL); |
153 |
< |
if (ourdisplay == NULL) |
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error(USER, "cannot open X-windows; DISPLAY variable set?\n"); |
153 |
> |
CHECK(ourdisplay==NULL, USER, |
154 |
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"cannot open X-windows; DISPLAY variable set?"); |
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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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break; |
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case STEREO_OFF: |
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error(USER, |
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"wrong video mode: run \"/usr/gfx/setmon -n STR_TOP\" first"); |
162 |
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"wrong video mode: run \"/usr/gfx/setmon -n STR_TOP\" first"); |
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case X_STEREO_UNSUPPORTED: |
164 |
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error(USER, "stereo mode not supported on this screen"); |
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default: |
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/* find a usable visual */ |
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ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlBest); |
171 |
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if (ourvinf == NULL) |
172 |
< |
error(USER, "no suitable visuals available"); |
172 |
> |
ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlOK); |
173 |
> |
CHECK(ourvinf==NULL, USER, "no suitable visuals available"); |
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/* get a context */ |
175 |
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gctx = glXCreateContext(ourdisplay, ourvinf, NULL, GL_TRUE); |
176 |
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/* set gamma and tone mapping */ |
202 |
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#endif |
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BORWIDTH, ourvinf->depth, InputOutput, ourvinf->visual, |
204 |
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CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &ourwinattr); |
205 |
< |
if (gwind == 0) |
200 |
< |
error(SYSTEM, "cannot create window\n"); |
205 |
> |
CHECK(gwind==0, SYSTEM, "cannot create window"); |
206 |
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XStoreName(ourdisplay, gwind, id); |
207 |
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/* set window manager hints */ |
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ourxwmhints.flags = InputHint|IconPixmapHint; |
226 |
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glXMakeCurrent(ourdisplay, gwind, gctx); |
227 |
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glEnable(GL_DEPTH_TEST); |
228 |
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glDepthFunc(GL_LEQUAL); |
229 |
< |
glDisable(GL_DITHER); |
229 |
> |
glClearColor(0, 0, 0, 0); |
230 |
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glFrontFace(GL_CCW); |
231 |
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glDisable(GL_CULL_FACE); |
232 |
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glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); |
233 |
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); |
234 |
+ |
glPixelStorei(GL_PACK_ALIGNMENT, 1); |
235 |
+ |
glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
236 |
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/* figure out sensible view */ |
237 |
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pwidth = (double)DisplayWidthMM(ourdisplay, ourscreen) / |
238 |
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DisplayWidth(ourdisplay, ourscreen); |
243 |
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setstereobuf(STEREO_BUFFER_LEFT); |
244 |
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#endif |
245 |
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checkglerr("setting rendering parameters"); |
246 |
< |
copystruct(&odev.v, &stdview); |
246 |
> |
odev.v = stdview; |
247 |
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odev.v.type = VT_PER; |
248 |
< |
headlocked = 0; /* free up head movement */ |
242 |
< |
viewsteady = 1; /* view starts static */ |
243 |
< |
isperspective = -1; /* but no view set, yet */ |
248 |
> |
viewflags = VWSTEADY; /* view starts static */ |
249 |
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/* map the window */ |
250 |
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XMapWindow(ourdisplay, gwind); |
251 |
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dev_input(); /* sets size and view angles */ |
252 |
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if (!odInit(DisplayWidth(ourdisplay,ourscreen) * |
253 |
< |
DisplayHeight(ourdisplay,ourscreen) / 10)) |
253 |
> |
DisplayHeight(ourdisplay,ourscreen) / 3)) |
254 |
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error(SYSTEM, "insufficient memory for value storage"); |
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odev.name = id; |
256 |
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odev.firstuse = 1; /* can't recycle samples */ |
282 |
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|
283 |
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dev_clear() /* clear our representation */ |
284 |
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{ |
285 |
< |
wipeclean(); |
285 |
> |
viewflags |= VWCHANGE; /* pretend our view has changed */ |
286 |
> |
wipeclean(); /* clean off display and samples */ |
287 |
> |
dev_flush(); /* redraw geometry & get depth */ |
288 |
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rayqleft = 0; /* hold off update */ |
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} |
290 |
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|
330 |
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XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
331 |
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dev_input(); /* get resize event */ |
332 |
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} |
333 |
< |
copystruct(&odev.v, nv); /* setview() already called */ |
333 |
> |
odev.v = *nv; /* setview() already called */ |
334 |
> |
viewflags |= VWCHANGE; |
335 |
> |
} |
336 |
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#ifdef STEREO |
337 |
< |
copystruct(&vwright, nv); |
338 |
< |
d = eyesepdist / sqrt(nv->hn2); |
339 |
< |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
340 |
< |
/* setview(&vwright); -- Unnecessary */ |
337 |
> |
vwright = *nv; |
338 |
> |
d = eyesepdist / sqrt(nv->hn2); |
339 |
> |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
340 |
> |
/* setview(&vwright); -- Unnecessary */ |
341 |
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#endif |
333 |
– |
} else |
334 |
– |
viewsteady = 1; |
342 |
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wipeclean(); |
343 |
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return(1); |
344 |
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} |
347 |
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dev_section(gfn, pfn) /* add octree for geometry rendering */ |
348 |
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char *gfn, *pfn; |
349 |
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{ |
343 |
– |
extern char *index(); |
350 |
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char *cp; |
351 |
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|
352 |
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if (gfn == NULL) { |
353 |
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gmEndGeom(); |
354 |
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gmEndPortal(); |
355 |
+ |
wipeclean(); /* new geometry, so redraw it */ |
356 |
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return; |
357 |
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} |
358 |
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if (access(gfn, R_OK) == 0) |
372 |
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char *cmd, *args; |
373 |
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{ |
374 |
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#ifdef DOBJ |
375 |
< |
if (dobj_command(cmd, args) >= 0) |
375 |
> |
int vischange; |
376 |
> |
|
377 |
> |
if ((vischange = dobj_command(cmd, args)) >= 0) { |
378 |
> |
if (vischange) { |
379 |
> |
imm_mode = beam_sync(1) > 0; |
380 |
> |
dev_clear(); |
381 |
> |
} |
382 |
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return; |
383 |
+ |
} |
384 |
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#endif |
385 |
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sprintf(errmsg, "%s: unknown command", cmd); |
386 |
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error(COMMAND, errmsg); |
440 |
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{ |
441 |
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int ndrawn; |
442 |
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|
443 |
< |
if (mapped && isperspective > 0) { |
443 |
> |
if ((viewflags&(VWMAPPED|VWPERSP)) == (VWMAPPED|VWPERSP)) { |
444 |
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#ifdef STEREO |
445 |
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pushright(); /* draw right eye */ |
446 |
< |
gmDrawGeom(0); |
446 |
> |
ndrawn = gmDrawGeom(); |
447 |
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#ifdef DOBJ |
448 |
< |
dobj_render(); |
448 |
> |
ndrawn += dobj_render(); |
449 |
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#endif |
450 |
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checkglerr("rendering right eye"); |
451 |
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popright(); /* draw left eye */ |
452 |
|
#endif |
453 |
< |
ndrawn = gmDrawGeom(1); |
453 |
> |
ndrawn = gmDrawGeom(); |
454 |
|
#ifdef DOBJ |
455 |
|
ndrawn += dobj_render(); |
456 |
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#endif |
457 |
+ |
glXSwapBuffers(ourdisplay, gwind); |
458 |
|
checkglerr("rendering base view"); |
459 |
|
} |
460 |
< |
if (mapped && viewsteady) { |
461 |
< |
if (isperspective) { /* first time after steady */ |
460 |
> |
if ((viewflags&(VWMAPPED|VWSTEADY|VWPERSP|VWORTHO)) == |
461 |
> |
(VWMAPPED|VWSTEADY|VWPERSP)) { |
462 |
> |
/* first time after steady */ |
463 |
> |
if (ndrawn) |
464 |
> |
xferdepth(); /* transfer and clear depth */ |
465 |
> |
setglortho(); /* set orthographic view */ |
466 |
> |
|
467 |
> |
} |
468 |
> |
if ((viewflags&(VWMAPPED|VWSTEADY|VWPERSP|VWORTHO)) == |
469 |
> |
(VWMAPPED|VWSTEADY|VWORTHO)) { |
470 |
> |
/* else update cones */ |
471 |
|
#ifdef STEREO |
472 |
< |
pushright(); |
473 |
< |
popright(); |
472 |
> |
pushright(); |
473 |
> |
odUpdate(1); /* draw right eye */ |
474 |
> |
popright(); |
475 |
|
#endif |
476 |
< |
if (ndrawn) |
477 |
< |
xferdepth(); /* transfer and clear depth */ |
453 |
< |
setglortho(); /* set orthographic view */ |
454 |
< |
} else { |
455 |
< |
#ifdef STEREO |
456 |
< |
pushright(); |
457 |
< |
odUpdate(1); /* draw right eye */ |
458 |
< |
popright(); |
459 |
< |
#endif |
460 |
< |
odUpdate(0); /* draw left eye */ |
461 |
< |
} |
476 |
> |
odUpdate(0); /* draw left eye */ |
477 |
> |
glFlush(); /* flush OpenGL */ |
478 |
|
} |
463 |
– |
glFlush(); /* flush OpenGL */ |
479 |
|
rayqleft = RAYQLEN; |
480 |
|
/* flush X11 and return # pending */ |
481 |
|
return(odev.inpready = XPending(ourdisplay)); |
499 |
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xferdepth() /* load and clear depth buffer */ |
500 |
|
{ |
501 |
|
register GLfloat *dbp; |
502 |
< |
register GLubyte *abuf; |
502 |
> |
register GLubyte *pbuf; |
503 |
|
|
504 |
< |
if (depthbuffer == NULL) { |
504 |
> |
if (depthbuffer == NULL) { /* allocate private depth buffer */ |
505 |
|
#ifdef STEREO |
506 |
|
depthright = (GLfloat *)malloc( |
507 |
|
odev.hres*odev.vres*sizeof(GLfloat)); |
508 |
|
#endif |
509 |
|
depthbuffer = (GLfloat *)malloc( |
510 |
|
odev.hres*odev.vres*sizeof(GLfloat)); |
511 |
< |
if (depthbuffer == NULL) |
497 |
< |
error(SYSTEM, "out of memory in xferdepth"); |
511 |
> |
CHECK(depthbuffer==NULL, SYSTEM, "out of memory in xferdepth"); |
512 |
|
} |
513 |
+ |
/* allocate alpha buffer for portals */ |
514 |
+ |
if (gmPortals) |
515 |
+ |
pbuf = (GLubyte *)malloc(odev.hres*odev.vres*sizeof(GLubyte)); |
516 |
+ |
else |
517 |
+ |
pbuf = NULL; |
518 |
|
#ifdef STEREO |
519 |
< |
setstereobuf(STEREO_BUFFER_RIGHT); |
519 |
> |
pushright(); |
520 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
521 |
|
GL_DEPTH_COMPONENT, GL_FLOAT, depthright); |
522 |
< |
setstereobuf(STEREO_BUFFER_LEFT); |
522 |
> |
if (pbuf != NULL) { |
523 |
> |
glClear(GL_COLOR_BUFFER_BIT); |
524 |
> |
gmDrawPortals(0xff, -1, -1, -1); |
525 |
> |
glReadPixels(0, 0, odev.hres, odev.vres, |
526 |
> |
GL_RED, GL_UNSIGNED_BYTE, pbuf); |
527 |
> |
} |
528 |
|
for (dbp = depthright + odev.hres*odev.vres; dbp-- > depthright; ) |
529 |
< |
*dbp = mapdepth(*dbp); |
530 |
< |
odDepthMap(1, depthright); |
529 |
> |
if (pbuf != NULL && pbuf[dbp-depthright]&0x40) |
530 |
> |
*dbp = FHUGE; |
531 |
> |
else |
532 |
> |
*dbp = mapdepth(*dbp); |
533 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
534 |
+ |
odDepthMap(1, depthright); |
535 |
+ |
popright(); |
536 |
|
#endif |
537 |
|
/* read back depth buffer */ |
538 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
539 |
|
GL_DEPTH_COMPONENT, GL_FLOAT, depthbuffer); |
540 |
< |
/* read alpha buffer for portals */ |
541 |
< |
if (gmPortals) |
542 |
< |
abuf = (GLubyte *)malloc(odev.hres*odev.vres*sizeof(GLubyte)); |
515 |
< |
else |
516 |
< |
abuf = NULL; |
517 |
< |
if (abuf != NULL) |
540 |
> |
if (pbuf != NULL) { |
541 |
> |
glClear(GL_COLOR_BUFFER_BIT); /* find portals */ |
542 |
> |
gmDrawPortals(0xff, -1, -1, -1); |
543 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
544 |
< |
GL_ALPHA, GL_UNSIGNED_BYTE, abuf); |
544 |
> |
GL_RED, GL_UNSIGNED_BYTE, pbuf); |
545 |
> |
#ifdef DEBUG |
546 |
> |
glXSwapBuffers(ourdisplay, gwind); |
547 |
> |
#endif |
548 |
> |
} |
549 |
|
for (dbp = depthbuffer + odev.hres*odev.vres; dbp-- > depthbuffer; ) |
550 |
< |
if (abuf != NULL && abuf[dbp-depthbuffer]) |
550 |
> |
if (pbuf != NULL && pbuf[dbp-depthbuffer]&0x40) |
551 |
|
*dbp = FHUGE; |
552 |
|
else |
553 |
|
*dbp = mapdepth(*dbp); |
554 |
+ |
glClear(GL_DEPTH_BUFFER_BIT); /* clear system depth buffer */ |
555 |
|
odDepthMap(0, depthbuffer); /* transfer depth data */ |
556 |
< |
glClear(GL_DEPTH_BUFFER_BIT); /* clear system buffer */ |
557 |
< |
if (abuf != NULL) |
528 |
< |
free((char *)abuf); /* free alpha buffer */ |
556 |
> |
if (pbuf != NULL) |
557 |
> |
free((void *)pbuf); /* free our portal buffer */ |
558 |
|
} |
559 |
|
|
560 |
|
|
565 |
|
return; |
566 |
|
#ifdef STEREO |
567 |
|
odDepthMap(1, NULL); |
568 |
< |
free((char *)depthright); |
568 |
> |
free((void *)depthright); |
569 |
|
depthright = NULL; |
570 |
|
#endif |
571 |
|
odDepthMap(0, NULL); |
572 |
< |
free((char *)depthbuffer); |
572 |
> |
free((void *)depthbuffer); |
573 |
|
depthbuffer = NULL; |
574 |
|
} |
575 |
|
|
580 |
|
FVECT direc; |
581 |
|
{ |
582 |
|
GLfloat gldepth; |
554 |
– |
GLubyte glalpha; |
583 |
|
double dist; |
584 |
|
|
585 |
|
if (dx<0 | dx>=odev.hres | dy<0 | dy>=odev.vres) |
589 |
|
else { |
590 |
|
glReadPixels(dx,dy, 1,1, GL_DEPTH_COMPONENT, |
591 |
|
GL_FLOAT, &gldepth); |
592 |
< |
if (gmPortals) |
565 |
< |
glReadPixels(dx,dy, 1,1, GL_ALPHA, |
566 |
< |
GL_UNSIGNED_BYTE, &glalpha); |
567 |
< |
else |
568 |
< |
glalpha = 0; |
569 |
< |
dist = glalpha ? FHUGE : mapdepth(gldepth); |
592 |
> |
dist = mapdepth(gldepth); |
593 |
|
} |
594 |
|
if (dist >= .99*FHUGE) |
595 |
|
return(FHUGE); |
604 |
|
double d; |
605 |
|
|
606 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
607 |
< |
if (isperspective > 0) { |
607 |
> |
if (viewflags & VWPERSP) { |
608 |
|
glMatrixMode(GL_MODELVIEW); |
609 |
|
glPushMatrix(); |
610 |
|
d = -eyesepdist / sqrt(odev.v.hn2); |
618 |
|
static |
619 |
|
popright() /* pop off right view & buffer */ |
620 |
|
{ |
621 |
< |
if (isperspective > 0) { |
621 |
> |
if (viewflags & VWPERSP) { |
622 |
|
glMatrixMode(GL_MODELVIEW); |
623 |
|
glPopMatrix(); |
624 |
|
} |
661 |
|
resizewindow(levptr(XConfigureEvent)); |
662 |
|
break; |
663 |
|
case UnmapNotify: |
664 |
< |
mapped = 0; |
664 |
> |
viewflags &= ~VWMAPPED; |
665 |
|
break; |
666 |
|
case MapNotify: |
667 |
|
odRemap(0); |
668 |
< |
mapped = 1; |
668 |
> |
viewflags |= VWMAPPED; |
669 |
|
break; |
670 |
|
case Expose: |
671 |
|
fixwindow(levptr(XExposeEvent)); |
699 |
|
glPushAttrib(GL_LIGHTING_BIT|GL_ENABLE_BIT); |
700 |
|
glDisable(GL_LIGHTING); |
701 |
|
if (fore) |
702 |
< |
glColor3ub(0, 255, 255); |
702 |
> |
glColor3ub(4, 250, 250); |
703 |
|
else |
704 |
|
glColor3ub(0, 0, 0); |
705 |
|
glBegin(GL_LINES); /* draw each grid line */ |
719 |
|
double d, d1; |
720 |
|
register int li; |
721 |
|
/* start with old view */ |
722 |
< |
copystruct(&nv, &odev.v); |
722 |
> |
nv = odev.v; |
723 |
|
/* orient our motion */ |
724 |
|
if (viewray(v1, odir, &odev.v, |
725 |
|
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
752 |
|
d = MOVPCT/100. * mov; |
753 |
|
VSUM(nv.vp, nv.vp, odir, d); |
754 |
|
} |
755 |
< |
if (!mov ^ !orb && headlocked) { /* restore head height */ |
755 |
> |
if (!mov ^ !orb && viewflags&VWHEADLOCK) { /* restore height */ |
756 |
|
VSUM(v1, odev.v.vp, nv.vp, -1.); |
757 |
|
d = DOT(v1, nv.vup); |
758 |
|
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
789 |
|
|
790 |
|
|
791 |
|
static |
792 |
+ |
waitabit() /* pause a moment */ |
793 |
+ |
{ |
794 |
+ |
struct timespec ts; |
795 |
+ |
ts.tv_sec = 0; |
796 |
+ |
ts.tv_nsec = 50000000; |
797 |
+ |
nanosleep(&ts, NULL); |
798 |
+ |
} |
799 |
+ |
|
800 |
+ |
|
801 |
+ |
static |
802 |
|
getmove(ebut) /* get view change */ |
803 |
|
XButtonPressedEvent *ebut; |
804 |
|
{ |
811 |
|
|
812 |
|
XNoOp(ourdisplay); /* makes sure we're not idle */ |
813 |
|
|
814 |
< |
viewsteady = 0; /* flag moving view */ |
815 |
< |
setglpersp(&odev.v); /* start us off in perspective */ |
814 |
> |
viewflags &= ~VWSTEADY; /* flag moving view */ |
815 |
> |
setglpersp(); /* start us off in perspective */ |
816 |
|
while (!XCheckMaskEvent(ourdisplay, |
817 |
|
ButtonReleaseMask, levptr(XEvent))) { |
818 |
+ |
/* pause so as not to move too fast */ |
819 |
+ |
waitabit(); |
820 |
|
/* get cursor position */ |
821 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
822 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
830 |
|
#ifdef STEREO |
831 |
|
pushright(); |
832 |
|
draw_grids(1); |
833 |
< |
gmDrawGeom(0); |
833 |
> |
ndrawn = gmDrawGeom(); |
834 |
|
#ifdef DOBJ |
835 |
< |
dobj_render(); |
835 |
> |
ndrawn += dobj_render(); |
836 |
|
#endif |
837 |
|
popright(); |
838 |
|
#endif |
839 |
|
/* redraw octrees */ |
840 |
< |
ndrawn = gmDrawGeom(1); |
840 |
> |
ndrawn = gmDrawGeom(); |
841 |
|
#ifdef DOBJ |
842 |
|
ndrawn += dobj_render(); /* redraw objects */ |
843 |
|
#endif |
844 |
< |
glFlush(); |
845 |
< |
if (!ndrawn) { |
844 |
> |
glXSwapBuffers(ourdisplay, gwind); |
845 |
> |
if (!ndrawn) |
846 |
|
sleep(1); /* for reasonable interaction */ |
812 |
– |
#ifdef STEREO |
813 |
– |
pushright(); |
814 |
– |
draw_grids(0); |
815 |
– |
popright(); |
816 |
– |
#endif |
817 |
– |
draw_grids(0); |
818 |
– |
} |
847 |
|
} |
848 |
|
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
849 |
|
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
851 |
|
wy = levptr(XButtonReleasedEvent)->y; |
852 |
|
moveview(wx, odev.vres-1-wy, movdir, movorb); |
853 |
|
} |
854 |
+ |
viewflags |= VWSTEADY; /* done goofing around */ |
855 |
|
} |
856 |
|
|
857 |
|
|
858 |
|
static |
859 |
< |
setglpersp(vp) /* set perspective view in GL */ |
831 |
< |
register VIEW *vp; |
859 |
> |
setglpersp() /* set perspective view in GL */ |
860 |
|
{ |
861 |
|
double d, xmin, xmax, ymin, ymax; |
862 |
|
GLfloat vec[4]; |
868 |
|
dev_zmax = 100.; |
869 |
|
} else { |
870 |
|
dev_zmin = 0.5*depthlim[0]; |
871 |
< |
dev_zmax = 1.75*depthlim[1]; |
871 |
> |
dev_zmax = 1.25*depthlim[1]; |
872 |
|
if (dev_zmin > dev_zmax/5.) |
873 |
|
dev_zmin = dev_zmax/5.; |
874 |
|
} |
876 |
|
dev_zmin = odev.v.vfore; |
877 |
|
if (odev.v.vaft > FTINY) |
878 |
|
dev_zmax = odev.v.vaft; |
879 |
< |
if (dev_zmin < dev_zmax/100.) |
880 |
< |
dev_zmin = dev_zmax/100.; |
879 |
> |
if (dev_zmin*500. < dev_zmax) |
880 |
> |
dev_zmin = dev_zmax/500.; |
881 |
|
setzrat(); |
882 |
|
xmax = dev_zmin * tan(PI/180./2. * odev.v.horiz); |
883 |
|
xmin = -xmax; |
897 |
|
odev.v.vp[2] + odev.v.vdir[2], |
898 |
|
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
899 |
|
checkglerr("setting perspective view"); |
872 |
– |
isperspective = 1; |
900 |
|
vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.; |
901 |
|
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, vec); |
902 |
|
vec[0] = -odev.v.vdir[0]; |
912 |
|
glEnable(GL_LIGHT0); |
913 |
|
glEnable(GL_LIGHTING); /* light our GL objects */ |
914 |
|
glShadeModel(GL_SMOOTH); |
915 |
+ |
viewflags &= ~VWORTHO; |
916 |
+ |
viewflags |= VWPERSP; |
917 |
|
} |
918 |
|
|
919 |
|
|
920 |
|
static |
921 |
|
setglortho() /* set up orthographic view for cone drawing */ |
922 |
|
{ |
923 |
+ |
glDrawBuffer(GL_FRONT); /* use single-buffer mode */ |
924 |
|
/* set view matrix */ |
925 |
|
glMatrixMode(GL_PROJECTION); |
926 |
|
glLoadIdentity(); |
927 |
|
glOrtho(0., (double)odev.hres, 0., (double)odev.vres, |
928 |
|
0.001*OMAXDEPTH, 1.001*(-OMAXDEPTH)); |
929 |
|
checkglerr("setting orthographic view"); |
900 |
– |
isperspective = 0; |
930 |
|
glDisable(GL_LIGHTING); /* cones are constant color */ |
931 |
|
glShadeModel(GL_FLAT); |
932 |
+ |
viewflags &= ~VWPERSP; |
933 |
+ |
viewflags |= VWORTHO; |
934 |
|
} |
935 |
|
|
936 |
|
|
937 |
|
static |
938 |
|
wipeclean() /* prepare for redraw */ |
939 |
|
{ |
940 |
< |
/* clear depth buffer */ |
940 |
> |
glDrawBuffer(GL_BACK); /* use double-buffer mode */ |
941 |
> |
glReadBuffer(GL_BACK); |
942 |
> |
/* clear buffers */ |
943 |
|
#ifdef STEREO |
944 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
945 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
945 |
> |
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
946 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
947 |
|
#endif |
948 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
916 |
< |
if (viewsteady) /* clear samples if steady */ |
917 |
< |
odClean(); |
948 |
> |
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
949 |
|
freedepth(); |
950 |
< |
setglpersp(&odev.v); /* reset view & clipping planes */ |
950 |
> |
if ((viewflags&(VWCHANGE|VWSTEADY)) == |
951 |
> |
(VWCHANGE|VWSTEADY)) { /* clear samples if new */ |
952 |
> |
odClean(); |
953 |
> |
viewflags &= ~VWCHANGE; /* change noted */ |
954 |
> |
} else if (viewflags & VWSTEADY) |
955 |
> |
odRedrawAll(); |
956 |
> |
setglpersp(); /* reset view & clipping planes */ |
957 |
|
} |
958 |
|
|
959 |
|
|
972 |
|
return; |
973 |
|
switch (buf[0]) { |
974 |
|
case 'h': /* turn on height motion lock */ |
975 |
< |
headlocked = 1; |
975 |
> |
viewflags |= VWHEADLOCK; |
976 |
|
return; |
977 |
|
case 'H': /* turn off height motion lock */ |
978 |
< |
headlocked = 0; |
978 |
> |
viewflags &= ~VWHEADLOCK; |
979 |
|
return; |
980 |
|
case 'l': /* retrieve last view */ |
981 |
|
inpresflags |= DFL(DC_LASTVIEW); |
1003 |
|
inpresflags |= DFL(DC_RESUME); |
1004 |
|
return; |
1005 |
|
case CTRL('R'): /* redraw screen */ |
1006 |
< |
odRemap(0); |
1007 |
< |
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
1006 |
> |
odRemap(0); /* new tone mapping */ |
1007 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
1008 |
|
#ifdef STEREO |
1009 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
1010 |
< |
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
1010 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
1011 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
1012 |
|
#endif |
1013 |
|
return; |
1014 |
|
case CTRL('L'): /* refresh from server */ |
1015 |
|
if (inpresflags & DFL(DC_REDRAW)) |
1016 |
< |
return; |
1016 |
> |
return; /* already called */ |
1017 |
|
XRaiseWindow(ourdisplay, gwind); |
1018 |
< |
XFlush(ourdisplay); |
1019 |
< |
sleep(1); |
1020 |
< |
wipeclean(); /* fresh display */ |
1021 |
< |
odRemap(1); /* fresh tone mapping */ |
985 |
< |
dev_flush(); /* draw octrees */ |
1018 |
> |
XFlush(ourdisplay); /* raise up window */ |
1019 |
> |
sleep(1); /* wait for restacking */ |
1020 |
> |
dev_clear(); /* clear buffer and samples */ |
1021 |
> |
odRemap(1); /* start fresh histogram */ |
1022 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
987 |
– |
rayqleft = 0; /* hold off update */ |
1023 |
|
return; |
1024 |
|
case 'K': /* kill rtrace process(es) */ |
1025 |
|
inpresflags |= DFL(DC_KILL); |
1052 |
|
} |
1053 |
|
xmin = eexp->x; xmax = eexp->x + eexp->width; |
1054 |
|
ymin = odev.vres - eexp->y - eexp->height; ymax = odev.vres - eexp->y; |
1055 |
+ |
|
1056 |
+ |
if (xmin <= 0 && xmax >= odev.hres-1 && |
1057 |
+ |
ymin <= 0 && ymax >= odev.vres) { |
1058 |
+ |
DCHECK(eexp->count, WARNING, "multiple clear in fixwindow"); |
1059 |
+ |
wipeclean(); /* make sure we're go */ |
1060 |
+ |
return; |
1061 |
+ |
} |
1062 |
|
/* clear portion of depth */ |
1063 |
|
glPushAttrib(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
1064 |
|
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); |
1101 |
|
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
1102 |
|
|
1103 |
|
inpresflags |= DFL(DC_SETVIEW); |
1104 |
+ |
viewflags |= VWCHANGE; |
1105 |
|
} |