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 |
+ |
#ifndef PORTALP |
44 |
+ |
#define PORTRED 2 /* portal red color */ |
45 |
+ |
#define PORTGRN -1 /* portal green left alone */ |
46 |
+ |
#define PORTBLU 128 /* portal blue color */ |
47 |
+ |
#define PORTALP -1 /* don't use alpha channel */ |
48 |
+ |
#endif |
49 |
+ |
#define isportal(c) ((PORTRED<0 || (c)[0]==PORTRED) && \ |
50 |
+ |
(PORTGRN<0 || (c)[1]==PORTGRN) && \ |
51 |
+ |
(PORTBLU<0 || (c)[2]==PORTBLU) && \ |
52 |
+ |
(PORTALP<0 || (c)[3]==PORTALP)) |
53 |
+ |
|
54 |
|
#ifndef FEQ |
55 |
|
#define FEQ(a,b) ((a)-(b) <= FTINY && (a)-(b) >= -FTINY) |
56 |
|
#endif |
141 |
|
{ |
142 |
|
extern char *getenv(); |
143 |
|
static RGBPRIMS myprims = STDPRIMS; |
144 |
< |
static int atlBest[] = {GLX_RGBA, GLX_RED_SIZE,8, |
145 |
< |
GLX_GREEN_SIZE,8, GLX_BLUE_SIZE,8, |
144 |
> |
#if (PORTALP<0) |
145 |
> |
static int atlBest[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
146 |
> |
GLX_RED_SIZE,8, GLX_GREEN_SIZE,8, |
147 |
> |
GLX_BLUE_SIZE,8, GLX_DEPTH_SIZE,15, None}; |
148 |
> |
static int atlOK[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
149 |
> |
GLX_RED_SIZE,4, GLX_GREEN_SIZE,4, |
150 |
> |
GLX_BLUE_SIZE,4, GLX_DEPTH_SIZE,15, None}; |
151 |
> |
#else |
152 |
> |
static int atlBest[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
153 |
> |
GLX_RED_SIZE,8, GLX_GREEN_SIZE,8, |
154 |
> |
GLX_BLUE_SIZE,8, GLX_ALPHA_SIZE,2, |
155 |
|
GLX_DEPTH_SIZE,15, None}; |
156 |
+ |
static int atlOK[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
157 |
+ |
GLX_RED_SIZE,4, GLX_GREEN_SIZE,4, |
158 |
+ |
GLX_BLUE_SIZE,4, GLX_ALPHA_SIZE,2, |
159 |
+ |
GLX_DEPTH_SIZE,15, None}; |
160 |
+ |
#endif |
161 |
|
char *ev; |
162 |
|
double gamval = GAMMA; |
163 |
|
RGBPRIMP dpri = stdprims; |
170 |
|
#endif |
171 |
|
/* open display server */ |
172 |
|
ourdisplay = XOpenDisplay(NULL); |
173 |
< |
if (ourdisplay == NULL) |
174 |
< |
error(USER, "cannot open X-windows; DISPLAY variable set?\n"); |
173 |
> |
CHECK(ourdisplay==NULL, USER, |
174 |
> |
"cannot open X-windows; DISPLAY variable set?"); |
175 |
|
#ifdef STEREO |
176 |
|
switch (XSGIQueryStereoMode(ourdisplay, ourroot)) { |
177 |
|
case STEREO_TOP: |
179 |
|
break; |
180 |
|
case STEREO_OFF: |
181 |
|
error(USER, |
182 |
< |
"wrong video mode: run \"/usr/gfx/setmon -n STR_TOP\" first"); |
182 |
> |
"wrong video mode: run \"/usr/gfx/setmon -n STR_TOP\" first"); |
183 |
|
case X_STEREO_UNSUPPORTED: |
184 |
|
error(USER, "stereo mode not supported on this screen"); |
185 |
|
default: |
189 |
|
/* find a usable visual */ |
190 |
|
ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlBest); |
191 |
|
if (ourvinf == NULL) |
192 |
< |
error(USER, "no suitable visuals available"); |
192 |
> |
ourvinf = glXChooseVisual(ourdisplay, ourscreen, atlOK); |
193 |
> |
CHECK(ourvinf==NULL, USER, "no suitable visuals available"); |
194 |
|
/* get a context */ |
195 |
|
gctx = glXCreateContext(ourdisplay, ourvinf, NULL, GL_TRUE); |
196 |
|
/* set gamma and tone mapping */ |
222 |
|
#endif |
223 |
|
BORWIDTH, ourvinf->depth, InputOutput, ourvinf->visual, |
224 |
|
CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &ourwinattr); |
225 |
< |
if (gwind == 0) |
200 |
< |
error(SYSTEM, "cannot create window\n"); |
225 |
> |
CHECK(gwind==0, SYSTEM, "cannot create window"); |
226 |
|
XStoreName(ourdisplay, gwind, id); |
227 |
|
/* set window manager hints */ |
228 |
|
ourxwmhints.flags = InputHint|IconPixmapHint; |
246 |
|
glXMakeCurrent(ourdisplay, gwind, gctx); |
247 |
|
glEnable(GL_DEPTH_TEST); |
248 |
|
glDepthFunc(GL_LEQUAL); |
249 |
< |
glDisable(GL_DITHER); |
249 |
> |
glEnable(GL_DITHER); |
250 |
|
glFrontFace(GL_CCW); |
251 |
|
glDisable(GL_CULL_FACE); |
252 |
|
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); |
270 |
|
XMapWindow(ourdisplay, gwind); |
271 |
|
dev_input(); /* sets size and view angles */ |
272 |
|
if (!odInit(DisplayWidth(ourdisplay,ourscreen) * |
273 |
< |
DisplayHeight(ourdisplay,ourscreen) / 10)) |
273 |
> |
DisplayHeight(ourdisplay,ourscreen) / 4)) |
274 |
|
error(SYSTEM, "insufficient memory for value storage"); |
275 |
|
odev.name = id; |
276 |
|
odev.firstuse = 1; /* can't recycle samples */ |
355 |
|
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
356 |
|
/* setview(&vwright); -- Unnecessary */ |
357 |
|
#endif |
358 |
< |
} else |
334 |
< |
viewsteady = 1; |
358 |
> |
} |
359 |
|
wipeclean(); |
360 |
|
return(1); |
361 |
|
} |
370 |
|
if (gfn == NULL) { |
371 |
|
gmEndGeom(); |
372 |
|
gmEndPortal(); |
373 |
+ |
wipeclean(); /* new geometry, so redraw it */ |
374 |
|
return; |
375 |
|
} |
376 |
|
if (access(gfn, R_OK) == 0) |
454 |
|
if (mapped && isperspective > 0) { |
455 |
|
#ifdef STEREO |
456 |
|
pushright(); /* draw right eye */ |
457 |
< |
gmDrawGeom(0); |
457 |
> |
ndrawn = gmDrawGeom(); |
458 |
|
#ifdef DOBJ |
459 |
< |
dobj_render(); |
459 |
> |
ndrawn += dobj_render(); |
460 |
|
#endif |
461 |
+ |
if (ndrawn && gmPortals) |
462 |
+ |
gmDrawPortals(PORTRED,PORTGRN,PORTBLU,PORTALP); |
463 |
|
checkglerr("rendering right eye"); |
464 |
|
popright(); /* draw left eye */ |
465 |
|
#endif |
466 |
< |
ndrawn = gmDrawGeom(1); |
466 |
> |
ndrawn = gmDrawGeom(); |
467 |
|
#ifdef DOBJ |
468 |
|
ndrawn += dobj_render(); |
469 |
|
#endif |
470 |
+ |
if (ndrawn && gmPortals) |
471 |
+ |
gmDrawPortals(PORTRED,PORTGRN,PORTBLU,PORTALP); |
472 |
+ |
glXSwapBuffers(ourdisplay, gwind); |
473 |
|
checkglerr("rendering base view"); |
474 |
|
} |
475 |
< |
if (mapped && viewsteady) { |
476 |
< |
if (isperspective) { /* first time after steady */ |
447 |
< |
#ifdef STEREO |
448 |
< |
pushright(); |
449 |
< |
popright(); |
450 |
< |
#endif |
475 |
> |
if (mapped && viewsteady) |
476 |
> |
if (isperspective > 0) { /* first time after steady */ |
477 |
|
if (ndrawn) |
478 |
|
xferdepth(); /* transfer and clear depth */ |
479 |
|
setglortho(); /* set orthographic view */ |
480 |
< |
} else { |
480 |
> |
} else if (!isperspective) { |
481 |
|
#ifdef STEREO |
482 |
|
pushright(); |
483 |
|
odUpdate(1); /* draw right eye */ |
484 |
|
popright(); |
485 |
|
#endif |
486 |
|
odUpdate(0); /* draw left eye */ |
487 |
+ |
glFlush(); /* flush OpenGL */ |
488 |
|
} |
462 |
– |
} |
463 |
– |
glFlush(); /* flush OpenGL */ |
489 |
|
rayqleft = RAYQLEN; |
490 |
|
/* flush X11 and return # pending */ |
491 |
|
return(odev.inpready = XPending(ourdisplay)); |
509 |
|
xferdepth() /* load and clear depth buffer */ |
510 |
|
{ |
511 |
|
register GLfloat *dbp; |
512 |
< |
register GLubyte *abuf; |
512 |
> |
register GLubyte *cbuf; |
513 |
|
|
514 |
< |
if (depthbuffer == NULL) { |
514 |
> |
if (depthbuffer == NULL) { /* allocate private depth buffer */ |
515 |
|
#ifdef STEREO |
516 |
|
depthright = (GLfloat *)malloc( |
517 |
|
odev.hres*odev.vres*sizeof(GLfloat)); |
518 |
|
#endif |
519 |
|
depthbuffer = (GLfloat *)malloc( |
520 |
|
odev.hres*odev.vres*sizeof(GLfloat)); |
521 |
< |
if (depthbuffer == NULL) |
497 |
< |
error(SYSTEM, "out of memory in xferdepth"); |
521 |
> |
CHECK(depthbuffer==NULL, SYSTEM, "out of memory in xferdepth"); |
522 |
|
} |
523 |
+ |
/* allocate alpha buffer for portals */ |
524 |
+ |
if (gmPortals) |
525 |
+ |
cbuf = (GLubyte *)malloc(odev.hres*odev.vres * |
526 |
+ |
(4*sizeof(GLubyte))); |
527 |
+ |
else |
528 |
+ |
cbuf = NULL; |
529 |
|
#ifdef STEREO |
530 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
531 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
532 |
|
GL_DEPTH_COMPONENT, GL_FLOAT, depthright); |
533 |
< |
setstereobuf(STEREO_BUFFER_LEFT); |
533 |
> |
if (cbuf != NULL) |
534 |
> |
glReadPixels(0, 0, odev.hres, odev.vres, |
535 |
> |
GL_RGBA, GL_UNSIGNED_BYTE, cbuf); |
536 |
|
for (dbp = depthright + odev.hres*odev.vres; dbp-- > depthright; ) |
537 |
< |
*dbp = mapdepth(*dbp); |
538 |
< |
odDepthMap(1, depthright); |
537 |
> |
if (cbuf != NULL && isportal(cbuf+4*(dbp-depthright))) |
538 |
> |
*dbp = FHUGE; |
539 |
> |
else |
540 |
> |
*dbp = mapdepth(*dbp); |
541 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
542 |
+ |
setstereobuf(STEREO_BUFFER_LEFT); |
543 |
+ |
odDepthMap(1, depthright); |
544 |
|
#endif |
545 |
|
/* read back depth buffer */ |
546 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
547 |
|
GL_DEPTH_COMPONENT, GL_FLOAT, depthbuffer); |
548 |
< |
/* read alpha buffer for portals */ |
513 |
< |
if (gmPortals) |
514 |
< |
abuf = (GLubyte *)malloc(odev.hres*odev.vres*sizeof(GLubyte)); |
515 |
< |
else |
516 |
< |
abuf = NULL; |
517 |
< |
if (abuf != NULL) |
548 |
> |
if (cbuf != NULL) |
549 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
550 |
< |
GL_ALPHA, GL_UNSIGNED_BYTE, abuf); |
550 |
> |
GL_RGBA, GL_UNSIGNED_BYTE, cbuf); |
551 |
|
for (dbp = depthbuffer + odev.hres*odev.vres; dbp-- > depthbuffer; ) |
552 |
< |
if (abuf != NULL && abuf[dbp-depthbuffer]) |
552 |
> |
if (cbuf != NULL && isportal(cbuf+4*(dbp-depthbuffer))) |
553 |
|
*dbp = FHUGE; |
554 |
|
else |
555 |
|
*dbp = mapdepth(*dbp); |
556 |
+ |
glClear(GL_DEPTH_BUFFER_BIT); /* clear system depth buffer */ |
557 |
+ |
if (cbuf != NULL) |
558 |
+ |
free((char *)cbuf); /* free our color buffer */ |
559 |
|
odDepthMap(0, depthbuffer); /* transfer depth data */ |
526 |
– |
glClear(GL_DEPTH_BUFFER_BIT); /* clear system buffer */ |
527 |
– |
if (abuf != NULL) |
528 |
– |
free((char *)abuf); /* free alpha buffer */ |
560 |
|
} |
561 |
|
|
562 |
|
|
582 |
|
FVECT direc; |
583 |
|
{ |
584 |
|
GLfloat gldepth; |
585 |
< |
GLubyte glalpha; |
585 |
> |
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); |
595 |
< |
if (gmPortals) |
596 |
< |
glReadPixels(dx,dy, 1,1, GL_ALPHA, |
597 |
< |
GL_UNSIGNED_BYTE, &glalpha); |
598 |
< |
else |
599 |
< |
glalpha = 0; |
600 |
< |
dist = glalpha ? FHUGE : mapdepth(gldepth); |
595 |
> |
if (gmPortals) { |
596 |
> |
glReadPixels(dx,dy, 1,1, GL_RGBA, |
597 |
> |
GL_UNSIGNED_BYTE, glcolor); |
598 |
> |
if (isportal(glcolor)) |
599 |
> |
return(FHUGE); |
600 |
> |
} |
601 |
> |
dist = mapdepth(gldepth); |
602 |
|
} |
603 |
|
if (dist >= .99*FHUGE) |
604 |
|
return(FHUGE); |
827 |
|
#ifdef STEREO |
828 |
|
pushright(); |
829 |
|
draw_grids(1); |
830 |
< |
gmDrawGeom(0); |
830 |
> |
ndrawn = gmDrawGeom(); |
831 |
|
#ifdef DOBJ |
832 |
< |
dobj_render(); |
832 |
> |
ndrawn += dobj_render(); |
833 |
|
#endif |
834 |
+ |
if (ndrawn && gmPortals) |
835 |
+ |
gmDrawPortals(PORTRED,PORTGRN,PORTBLU,PORTALP); |
836 |
|
popright(); |
837 |
|
#endif |
838 |
|
/* redraw octrees */ |
839 |
< |
ndrawn = gmDrawGeom(1); |
839 |
> |
ndrawn = gmDrawGeom(); |
840 |
|
#ifdef DOBJ |
841 |
|
ndrawn += dobj_render(); /* redraw objects */ |
842 |
|
#endif |
843 |
< |
glFlush(); |
844 |
< |
if (!ndrawn) { |
843 |
> |
if (ndrawn && gmPortals) |
844 |
> |
gmDrawPortals(PORTRED, PORTGRN, PORTBLU, PORTALP); |
845 |
> |
glXSwapBuffers(ourdisplay, gwind); |
846 |
> |
if (!ndrawn) |
847 |
|
sleep(1); /* for reasonable interaction */ |
812 |
– |
#ifdef STEREO |
813 |
– |
pushright(); |
814 |
– |
draw_grids(0); |
815 |
– |
popright(); |
816 |
– |
#endif |
817 |
– |
draw_grids(0); |
818 |
– |
} |
848 |
|
} |
849 |
|
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
850 |
|
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
852 |
|
wy = levptr(XButtonReleasedEvent)->y; |
853 |
|
moveview(wx, odev.vres-1-wy, movdir, movorb); |
854 |
|
} |
855 |
+ |
viewsteady = 1; /* done goofing around */ |
856 |
|
} |
857 |
|
|
858 |
|
|
921 |
|
static |
922 |
|
setglortho() /* set up orthographic view for cone drawing */ |
923 |
|
{ |
924 |
+ |
glDrawBuffer(GL_FRONT); /* use single-buffer mode */ |
925 |
|
/* set view matrix */ |
926 |
|
glMatrixMode(GL_PROJECTION); |
927 |
|
glLoadIdentity(); |
937 |
|
static |
938 |
|
wipeclean() /* prepare for redraw */ |
939 |
|
{ |
940 |
< |
/* clear depth buffer */ |
940 |
> |
glDrawBuffer(GL_BACK); /* use double-buffer mode */ |
941 |
> |
/* clear buffers */ |
942 |
|
#ifdef STEREO |
943 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
944 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
944 |
> |
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
945 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
946 |
|
#endif |
947 |
< |
glClear(GL_DEPTH_BUFFER_BIT); |
947 |
> |
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
948 |
> |
freedepth(); |
949 |
|
if (viewsteady) /* clear samples if steady */ |
950 |
|
odClean(); |
918 |
– |
freedepth(); |
951 |
|
setglpersp(&odev.v); /* reset view & clipping planes */ |
952 |
|
} |
953 |
|
|
999 |
|
return; |
1000 |
|
case CTRL('R'): /* redraw screen */ |
1001 |
|
odRemap(0); |
1002 |
< |
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
1002 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
1003 |
|
#ifdef STEREO |
1004 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
1005 |
< |
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
1005 |
> |
glClear(GL_DEPTH_BUFFER_BIT); |
1006 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
1007 |
|
#endif |
1008 |
|
return; |