37 |
|
#include "x11icon.h" |
38 |
|
|
39 |
|
#ifndef RAYQLEN |
40 |
< |
#define RAYQLEN 10240 /* max. rays to queue before flush */ |
40 |
> |
#define RAYQLEN 50000 /* max. rays to queue before flush */ |
41 |
|
#endif |
42 |
|
|
43 |
+ |
/* values other than 0 or 255 do not map reliably */ |
44 |
|
#ifndef PORTALP |
45 |
< |
#define PORTRED 2 /* portal red color */ |
46 |
< |
#define PORTGRN -1 /* portal green left alone */ |
47 |
< |
#define PORTBLU 128 /* portal blue color */ |
48 |
< |
#define PORTALP -1 /* don't use alpha channel */ |
45 |
> |
#define PORTRED 0 /* -1, 0 or 255 */ |
46 |
> |
#define PORTGRN -1 /* -1, 0 or 255 */ |
47 |
> |
#define PORTBLU 255 /* -1, 0 or 255 */ |
48 |
> |
#define PORTALP -1 /* -1 or 255 */ |
49 |
|
#endif |
50 |
|
#define isportal(c) ((PORTRED<0 || (c)[0]==PORTRED) && \ |
51 |
|
(PORTGRN<0 || (c)[1]==PORTGRN) && \ |
52 |
|
(PORTBLU<0 || (c)[2]==PORTBLU) && \ |
53 |
|
(PORTALP<0 || (c)[3]==PORTALP)) |
54 |
+ |
#define doportals() if (gmPortals) \ |
55 |
+ |
gmDrawPortals(PORTRED,PORTGRN,PORTBLU,PORTALP); else |
56 |
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|
57 |
|
#ifndef FEQ |
58 |
|
#define FEQ(a,b) ((a)-(b) <= FTINY && (a)-(b) >= -FTINY) |
59 |
|
#endif |
60 |
|
|
61 |
+ |
#define VWHEADLOCK 01 /* head position is locked flag */ |
62 |
+ |
#define VWPERSP 02 /* perspective view is set */ |
63 |
+ |
#define VWORTHO 04 /* orthographic view is set */ |
64 |
+ |
#define VWCHANGE 010 /* view has changed */ |
65 |
+ |
#define VWSTEADY 020 /* view is now steady */ |
66 |
+ |
#define VWMAPPED 040 /* window is mapped */ |
67 |
+ |
|
68 |
|
#define GAMMA 1.4 /* default gamma correction */ |
69 |
|
|
70 |
|
#define FRAMESTATE(s) (((s)&(ShiftMask|ControlMask))==(ShiftMask|ControlMask)) |
107 |
|
|
108 |
|
static XEvent currentevent; /* current event */ |
109 |
|
|
100 |
– |
static int mapped = 0; /* window is mapped? */ |
110 |
|
static unsigned long ourblack=0, ourwhite=~0; |
111 |
|
|
112 |
|
static Display *ourdisplay = NULL; /* our display */ |
124 |
|
|
125 |
|
static int inpresflags; /* input result flags */ |
126 |
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|
127 |
< |
static int headlocked; /* lock vertical motion */ |
127 |
> |
static int viewflags; /* what's happening with view */ |
128 |
|
|
120 |
– |
static int isperspective; /* perspective/ortho view */ |
121 |
– |
|
122 |
– |
static int viewsteady; /* is view steady? */ |
123 |
– |
|
129 |
|
static int resizewindow(), getevent(), getkey(), moveview(), wipeclean(), |
130 |
|
xferdepth(), freedepth(), setglortho(), |
131 |
|
setglpersp(), getframe(), getmove(), fixwindow(), mytmflags(); |
147 |
|
extern char *getenv(); |
148 |
|
static RGBPRIMS myprims = STDPRIMS; |
149 |
|
#if (PORTALP<0) |
150 |
< |
static int atlBest[] = {GLX_RGBA, GLX_RED_SIZE,8, |
151 |
< |
GLX_GREEN_SIZE,8, GLX_BLUE_SIZE,8, |
152 |
< |
GLX_DEPTH_SIZE,15, None}; |
150 |
> |
static int atlBest[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
151 |
> |
GLX_RED_SIZE,8, GLX_GREEN_SIZE,8, |
152 |
> |
GLX_BLUE_SIZE,8, GLX_DEPTH_SIZE,15, None}; |
153 |
> |
static int atlOK[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
154 |
> |
GLX_RED_SIZE,4, GLX_GREEN_SIZE,4, |
155 |
> |
GLX_BLUE_SIZE,4, GLX_DEPTH_SIZE,15, None}; |
156 |
|
#else |
157 |
< |
static int atlBest[] = {GLX_RGBA, GLX_RED_SIZE,8, |
158 |
< |
GLX_GREEN_SIZE,8, GLX_BLUE_SIZE,8, |
159 |
< |
GLX_ALPHA_SIZE,2, GLX_DEPTH_SIZE,15, None}; |
157 |
> |
static int atlBest[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
158 |
> |
GLX_RED_SIZE,8, GLX_GREEN_SIZE,8, |
159 |
> |
GLX_BLUE_SIZE,8, GLX_ALPHA_SIZE,1, |
160 |
> |
GLX_DEPTH_SIZE,15, None}; |
161 |
> |
static int atlOK[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
162 |
> |
GLX_RED_SIZE,5, GLX_GREEN_SIZE,5, |
163 |
> |
GLX_BLUE_SIZE,5, GLX_ALPHA_SIZE,1, |
164 |
> |
GLX_DEPTH_SIZE,15, None}; |
165 |
|
#endif |
166 |
|
char *ev; |
167 |
|
double gamval = GAMMA; |
175 |
|
#endif |
176 |
|
/* open display server */ |
177 |
|
ourdisplay = XOpenDisplay(NULL); |
178 |
< |
if (ourdisplay == NULL) |
179 |
< |
error(USER, "cannot open X-windows; DISPLAY variable set?\n"); |
178 |
> |
CHECK(ourdisplay==NULL, USER, |
179 |
> |
"cannot open X-windows; DISPLAY variable set?"); |
180 |
|
#ifdef STEREO |
181 |
|
switch (XSGIQueryStereoMode(ourdisplay, ourroot)) { |
182 |
|
case STEREO_TOP: |
184 |
|
break; |
185 |
|
case STEREO_OFF: |
186 |
|
error(USER, |
187 |
< |
"wrong video mode: run \"/usr/gfx/setmon -n STR_TOP\" first"); |
187 |
> |
"wrong video mode: run \"/usr/gfx/setmon -n STR_TOP\" first"); |
188 |
|
case X_STEREO_UNSUPPORTED: |
189 |
|
error(USER, "stereo mode not supported on this screen"); |
190 |
|
default: |
194 |
|
/* find a usable visual */ |
195 |
|
ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlBest); |
196 |
|
if (ourvinf == NULL) |
197 |
< |
error(USER, "no suitable visuals available"); |
197 |
> |
ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlOK); |
198 |
> |
CHECK(ourvinf==NULL, USER, "no suitable visuals available"); |
199 |
|
/* get a context */ |
200 |
|
gctx = glXCreateContext(ourdisplay, ourvinf, NULL, GL_TRUE); |
201 |
|
/* set gamma and tone mapping */ |
227 |
|
#endif |
228 |
|
BORWIDTH, ourvinf->depth, InputOutput, ourvinf->visual, |
229 |
|
CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &ourwinattr); |
230 |
< |
if (gwind == 0) |
217 |
< |
error(SYSTEM, "cannot create window\n"); |
230 |
> |
CHECK(gwind==0, SYSTEM, "cannot create window"); |
231 |
|
XStoreName(ourdisplay, gwind, id); |
232 |
|
/* set window manager hints */ |
233 |
|
ourxwmhints.flags = InputHint|IconPixmapHint; |
251 |
|
glXMakeCurrent(ourdisplay, gwind, gctx); |
252 |
|
glEnable(GL_DEPTH_TEST); |
253 |
|
glDepthFunc(GL_LEQUAL); |
254 |
< |
glDisable(GL_DITHER); |
254 |
> |
glEnable(GL_DITHER); |
255 |
|
glFrontFace(GL_CCW); |
256 |
|
glDisable(GL_CULL_FACE); |
257 |
|
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); |
268 |
|
checkglerr("setting rendering parameters"); |
269 |
|
copystruct(&odev.v, &stdview); |
270 |
|
odev.v.type = VT_PER; |
271 |
< |
headlocked = 0; /* free up head movement */ |
259 |
< |
viewsteady = 1; /* view starts static */ |
260 |
< |
isperspective = -1; /* but no view set, yet */ |
271 |
> |
viewflags = VWSTEADY; /* view starts static */ |
272 |
|
/* map the window */ |
273 |
|
XMapWindow(ourdisplay, gwind); |
274 |
|
dev_input(); /* sets size and view angles */ |
275 |
|
if (!odInit(DisplayWidth(ourdisplay,ourscreen) * |
276 |
< |
DisplayHeight(ourdisplay,ourscreen) / 10)) |
276 |
> |
DisplayHeight(ourdisplay,ourscreen) / 4)) |
277 |
|
error(SYSTEM, "insufficient memory for value storage"); |
278 |
|
odev.name = id; |
279 |
|
odev.firstuse = 1; /* can't recycle samples */ |
358 |
|
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
359 |
|
/* setview(&vwright); -- Unnecessary */ |
360 |
|
#endif |
361 |
< |
} else |
362 |
< |
viewsteady = 1; |
361 |
> |
viewflags |= VWCHANGE; |
362 |
> |
} |
363 |
|
wipeclean(); |
364 |
|
return(1); |
365 |
|
} |
374 |
|
if (gfn == NULL) { |
375 |
|
gmEndGeom(); |
376 |
|
gmEndPortal(); |
377 |
+ |
wipeclean(); /* new geometry, so redraw it */ |
378 |
|
return; |
379 |
|
} |
380 |
|
if (access(gfn, R_OK) == 0) |
455 |
|
{ |
456 |
|
int ndrawn; |
457 |
|
|
458 |
< |
if (mapped && isperspective > 0) { |
458 |
> |
if ((viewflags&(VWMAPPED|VWPERSP)) == (VWMAPPED|VWPERSP)) { |
459 |
|
#ifdef STEREO |
460 |
|
pushright(); /* draw right eye */ |
461 |
|
ndrawn = gmDrawGeom(); |
463 |
|
ndrawn += dobj_render(); |
464 |
|
#endif |
465 |
|
if (ndrawn) |
466 |
< |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
466 |
> |
doportals(); |
467 |
|
checkglerr("rendering right eye"); |
468 |
|
popright(); /* draw left eye */ |
469 |
|
#endif |
472 |
|
ndrawn += dobj_render(); |
473 |
|
#endif |
474 |
|
if (ndrawn) |
475 |
< |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
475 |
> |
doportals(); |
476 |
> |
glXSwapBuffers(ourdisplay, gwind); |
477 |
|
checkglerr("rendering base view"); |
478 |
|
} |
479 |
< |
if (mapped && viewsteady) { |
480 |
< |
if (isperspective) { /* first time after steady */ |
479 |
> |
if ((viewflags&(VWMAPPED|VWSTEADY|VWPERSP|VWORTHO)) == |
480 |
> |
(VWMAPPED|VWSTEADY|VWPERSP)) { |
481 |
> |
/* first time after steady */ |
482 |
> |
if (ndrawn) |
483 |
> |
xferdepth(); /* transfer and clear depth */ |
484 |
> |
setglortho(); /* set orthographic view */ |
485 |
> |
|
486 |
> |
} |
487 |
> |
if ((viewflags&(VWMAPPED|VWSTEADY|VWPERSP|VWORTHO)) == |
488 |
> |
(VWMAPPED|VWSTEADY|VWORTHO)) { |
489 |
> |
/* else update cones */ |
490 |
|
#ifdef STEREO |
491 |
< |
pushright(); |
492 |
< |
popright(); |
491 |
> |
pushright(); |
492 |
> |
odUpdate(1); /* draw right eye */ |
493 |
> |
popright(); |
494 |
|
#endif |
495 |
< |
if (ndrawn) |
496 |
< |
xferdepth(); /* transfer and clear depth */ |
474 |
< |
setglortho(); /* set orthographic view */ |
475 |
< |
} else { |
476 |
< |
#ifdef STEREO |
477 |
< |
pushright(); |
478 |
< |
odUpdate(1); /* draw right eye */ |
479 |
< |
popright(); |
480 |
< |
#endif |
481 |
< |
odUpdate(0); /* draw left eye */ |
482 |
< |
} |
495 |
> |
odUpdate(0); /* draw left eye */ |
496 |
> |
glFlush(); /* flush OpenGL */ |
497 |
|
} |
484 |
– |
glFlush(); /* flush OpenGL */ |
498 |
|
rayqleft = RAYQLEN; |
499 |
|
/* flush X11 and return # pending */ |
500 |
|
return(odev.inpready = XPending(ourdisplay)); |
527 |
|
#endif |
528 |
|
depthbuffer = (GLfloat *)malloc( |
529 |
|
odev.hres*odev.vres*sizeof(GLfloat)); |
530 |
< |
if (depthbuffer == NULL) |
518 |
< |
error(SYSTEM, "out of memory in xferdepth"); |
530 |
> |
CHECK(depthbuffer==NULL, SYSTEM, "out of memory in xferdepth"); |
531 |
|
} |
532 |
|
/* allocate alpha buffer for portals */ |
533 |
|
if (gmPortals) |
534 |
< |
cbuf = (GLubyte *)malloc(odev.hres*odev.vres* |
534 |
> |
cbuf = (GLubyte *)malloc(odev.hres*odev.vres * |
535 |
|
(4*sizeof(GLubyte))); |
536 |
|
else |
537 |
|
cbuf = NULL; |
622 |
|
double d; |
623 |
|
|
624 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
625 |
< |
if (isperspective > 0) { |
625 |
> |
if (viewflags & VWPERSP) { |
626 |
|
glMatrixMode(GL_MODELVIEW); |
627 |
|
glPushMatrix(); |
628 |
|
d = -eyesepdist / sqrt(odev.v.hn2); |
636 |
|
static |
637 |
|
popright() /* pop off right view & buffer */ |
638 |
|
{ |
639 |
< |
if (isperspective > 0) { |
639 |
> |
if (viewflags & VWPERSP) { |
640 |
|
glMatrixMode(GL_MODELVIEW); |
641 |
|
glPopMatrix(); |
642 |
|
} |
679 |
|
resizewindow(levptr(XConfigureEvent)); |
680 |
|
break; |
681 |
|
case UnmapNotify: |
682 |
< |
mapped = 0; |
682 |
> |
viewflags &= ~VWMAPPED; |
683 |
|
break; |
684 |
|
case MapNotify: |
685 |
|
odRemap(0); |
686 |
< |
mapped = 1; |
686 |
> |
viewflags |= VWMAPPED; |
687 |
|
break; |
688 |
|
case Expose: |
689 |
|
fixwindow(levptr(XExposeEvent)); |
717 |
|
glPushAttrib(GL_LIGHTING_BIT|GL_ENABLE_BIT); |
718 |
|
glDisable(GL_LIGHTING); |
719 |
|
if (fore) |
720 |
< |
glColor3ub(0, 255, 255); |
720 |
> |
glColor3ub(4, 250, 250); |
721 |
|
else |
722 |
|
glColor3ub(0, 0, 0); |
723 |
|
glBegin(GL_LINES); /* draw each grid line */ |
770 |
|
d = MOVPCT/100. * mov; |
771 |
|
VSUM(nv.vp, nv.vp, odir, d); |
772 |
|
} |
773 |
< |
if (!mov ^ !orb && headlocked) { /* restore head height */ |
773 |
> |
if (!mov ^ !orb && viewflags&VWHEADLOCK) { /* restore height */ |
774 |
|
VSUM(v1, odev.v.vp, nv.vp, -1.); |
775 |
|
d = DOT(v1, nv.vup); |
776 |
|
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
819 |
|
|
820 |
|
XNoOp(ourdisplay); /* makes sure we're not idle */ |
821 |
|
|
822 |
< |
viewsteady = 0; /* flag moving view */ |
822 |
> |
viewflags &= ~VWSTEADY; /* flag moving view */ |
823 |
|
setglpersp(&odev.v); /* start us off in perspective */ |
824 |
|
while (!XCheckMaskEvent(ourdisplay, |
825 |
|
ButtonReleaseMask, levptr(XEvent))) { |
841 |
|
ndrawn += dobj_render(); |
842 |
|
#endif |
843 |
|
if (ndrawn) |
844 |
< |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
844 |
> |
doportals(); |
845 |
|
popright(); |
846 |
|
#endif |
847 |
|
/* redraw octrees */ |
850 |
|
ndrawn += dobj_render(); /* redraw objects */ |
851 |
|
#endif |
852 |
|
if (ndrawn) |
853 |
< |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
854 |
< |
glFlush(); |
855 |
< |
if (!ndrawn) { |
853 |
> |
doportals(); |
854 |
> |
glXSwapBuffers(ourdisplay, gwind); |
855 |
> |
if (!ndrawn) |
856 |
|
sleep(1); /* for reasonable interaction */ |
845 |
– |
#ifdef STEREO |
846 |
– |
pushright(); |
847 |
– |
draw_grids(0); |
848 |
– |
popright(); |
849 |
– |
#endif |
850 |
– |
draw_grids(0); |
851 |
– |
} |
857 |
|
} |
858 |
|
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
859 |
|
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
861 |
|
wy = levptr(XButtonReleasedEvent)->y; |
862 |
|
moveview(wx, odev.vres-1-wy, movdir, movorb); |
863 |
|
} |
864 |
+ |
viewflags |= VWSTEADY; /* done goofing around */ |
865 |
|
} |
866 |
|
|
867 |
|
|
908 |
|
odev.v.vp[2] + odev.v.vdir[2], |
909 |
|
odev.v.vup[0], odev.v.vup[1], odev.v.vup[2]); |
910 |
|
checkglerr("setting perspective view"); |
905 |
– |
isperspective = 1; |
911 |
|
vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.; |
912 |
|
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, vec); |
913 |
|
vec[0] = -odev.v.vdir[0]; |
923 |
|
glEnable(GL_LIGHT0); |
924 |
|
glEnable(GL_LIGHTING); /* light our GL objects */ |
925 |
|
glShadeModel(GL_SMOOTH); |
926 |
+ |
viewflags &= ~VWORTHO; |
927 |
+ |
viewflags |= VWPERSP; |
928 |
|
} |
929 |
|
|
930 |
|
|
931 |
|
static |
932 |
|
setglortho() /* set up orthographic view for cone drawing */ |
933 |
|
{ |
934 |
+ |
glDrawBuffer(GL_FRONT); /* use single-buffer mode */ |
935 |
|
/* set view matrix */ |
936 |
|
glMatrixMode(GL_PROJECTION); |
937 |
|
glLoadIdentity(); |
938 |
|
glOrtho(0., (double)odev.hres, 0., (double)odev.vres, |
939 |
|
0.001*OMAXDEPTH, 1.001*(-OMAXDEPTH)); |
940 |
|
checkglerr("setting orthographic view"); |
933 |
– |
isperspective = 0; |
941 |
|
glDisable(GL_LIGHTING); /* cones are constant color */ |
942 |
|
glShadeModel(GL_FLAT); |
943 |
+ |
viewflags &= ~VWPERSP; |
944 |
+ |
viewflags |= VWORTHO; |
945 |
|
} |
946 |
|
|
947 |
|
|
948 |
|
static |
949 |
|
wipeclean() /* prepare for redraw */ |
950 |
|
{ |
951 |
< |
/* clear depth buffer */ |
951 |
> |
glDrawBuffer(GL_BACK); /* use double-buffer mode */ |
952 |
> |
glReadBuffer(GL_FRONT); /* read back visible contents */ |
953 |
> |
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); |
954 |
> |
/* clear buffers */ |
955 |
|
#ifdef STEREO |
956 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
957 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
957 |
> |
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
958 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
959 |
|
#endif |
960 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
961 |
< |
if (viewsteady) /* clear samples if steady */ |
950 |
< |
odClean(); |
960 |
> |
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
961 |
> |
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_FALSE); |
962 |
|
freedepth(); |
963 |
+ |
if ((viewflags&(VWCHANGE|VWSTEADY)) == |
964 |
+ |
(VWCHANGE|VWSTEADY)) { /* clear samples if new */ |
965 |
+ |
odClean(); |
966 |
+ |
viewflags &= ~VWCHANGE; /* change noted */ |
967 |
+ |
} |
968 |
|
setglpersp(&odev.v); /* reset view & clipping planes */ |
969 |
|
} |
970 |
|
|
984 |
|
return; |
985 |
|
switch (buf[0]) { |
986 |
|
case 'h': /* turn on height motion lock */ |
987 |
< |
headlocked = 1; |
987 |
> |
viewflags |= VWHEADLOCK; |
988 |
|
return; |
989 |
|
case 'H': /* turn off height motion lock */ |
990 |
< |
headlocked = 0; |
990 |
> |
viewflags &= ~VWHEADLOCK; |
991 |
|
return; |
992 |
|
case 'l': /* retrieve last view */ |
993 |
|
inpresflags |= DFL(DC_LASTVIEW); |
1016 |
|
return; |
1017 |
|
case CTRL('R'): /* redraw screen */ |
1018 |
|
odRemap(0); |
1019 |
< |
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
1019 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
1020 |
|
#ifdef STEREO |
1021 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
1022 |
< |
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
1022 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
1023 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
1024 |
|
#endif |
1025 |
|
return; |
1108 |
|
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
1109 |
|
|
1110 |
|
inpresflags |= DFL(DC_SETVIEW); |
1111 |
+ |
viewflags |= VWCHANGE; |
1112 |
|
} |