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Merging OCC22105, OCC22354, OCC22150 , OCC22199 , OCC22391 and OCC22108
[occt.git] / src / OpenGl / OpenGl_txgl.cxx
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7fd59977 1/***********************************************************************
2
3FONCTION :
4----------
5File OpenGl_txgl :
6
7
8REMARQUES:
9----------
10
11
12HISTORIQUE DES MODIFICATIONS :
13--------------------------------
14xx-xx-xx : xxx ; Creation.
1507-02-96 : FMN ; Suppression code inutile:
16- TxglLink() et TxglUnlink()
1708-03-96 : FMN ; Suppression variables globales
18Ajout cmn_delete_from_htbl() dans TxglDestroyWindow()
1921-03-96 : CAL ; test sur previous_ctx dans TxglDestroyWindow()
20et dans TxglSetDbuff()
2101-04-96 : CAL ; Integration MINSK portage WNT
2215-04-96 : CAL ; Integration travail PIXMAP de Jim ROTH
2326-04-96 : FMN ; Correction warning de compilation
2420-06-96 : CAL ; Retrait du XDestroyWindow dans TxglDestroyWindow
2518-07-96 : FMN ; Suppression code inutile: TxglSetWindow().
2627-09-96 : CAL ; Portage WNT
2716-10-96 : GG ; Coder le parametre de GLX_DEPTH_SIZE a 1 plutot
28que 0 si l'on souhaite accroitre les performances
29de 50% en utilisant le ZBuffer hardware !!!
30Si la fenetre fournie a deja le bon visual pas
31la peine de creer une sous-fenetre.
3216-10-96 : GG ; Le dithering doit etre active aussi avec 12 plans
33de maniere a ameliorer la qualite
3417-10-96 : FMN ; Ajout fonction printVisualInfo()
3506-11-96 : CAL ; Remise a True du BackDitherProp pour < 12 plans
3612-11-96 : CAL ; BackDitherProp = True pour <= 8 plans
37BackDitherProp = False pour > 8 plans
3829-01-97 : FMN ; Amelioration du tests pour le dithering
39DitherProp = True pour <= 8 plans red
40DitherProp = False pour > 8 plans red
41Suppression de TxglSetDbuff()
4206-06-97 : FMN ; Meilleure gestion glXMakeCurrent (pb avec LightWoks)
43Suppression de previous_win
4402-07-97 : FMN ; Suppression variable ESSAI
4507-10-97 : FMN ; Simplification WNT
4613-10-97 : FMN ; Ajout wglShareLists
4706-02-98 : FMN ; PRO11674: Suppression XSetErrorHandler(0) inutile
4823-11-98 : CAL ; PRO16603: previous_ctx jamais remis a 0 pour eviter
49la perte des lists.
5007-12-98 : CAL ; PRO 16311 et PRO 11821
5102.14.100 : JR : Warnings on WNT
5214.07.06 : SAN : OCC12977: update previous_ctx properly in TxglDestroyWindow.
53Old code resulted in crashes on some ATI Radeon cards under Linux.
54
55************************************************************************/
56
57#define BUC60691 /*GG 06/06/00 Due to a severe bug in secondary
58// table hash-code computation not yet solve,
59// It's necessary to compute the primary hash-key key
60// correctly under WNT/W98. The actual method is wrong
61// because a size 4 is used for this table instead
62// a conventional prime number as under UNIX system (23).
63// Under W98 sometimes the function wglMakeContext() does
64// not work for an UNKNOWN reason, the number of DC
65// seems limited to 5 but nothing tell that the limit is
66// reached !
67// We try right now to recover this error by creating a new DC.
68*/
69
70#define RIC120303 /*GG Add new function TxglSetWindow using
71// the GLXContext defined by the user
72// Add new function TxglGetContext.
73*/
74
75#define OCC954 /*SAV: 13/11/02 - check GLRC before deleting it*/
76
77/*----------------------------------------------------------------------*/
78/*
79* Includes
80*/
81#include <OpenGl_tgl_all.hxx>
82#include <OpenGl_telem_util.hxx>
83#include <stdio.h>
84
85#include <OpenGl_Memory.hxx>
d4c2114a 86#include <OpenGl_ResourceCleaner.hxx>
7fd59977 87
88
89#ifdef WNT
90struct HTBL_ENTRY {
91 HDC hDC;
92 HGLRC hGLRC;
93 int nUsed;
94 IMPLEMENT_MEMORY_OPERATORS
95};
96
97
98int call_util_osd_getenv ( char*, char*, int );
99#endif /* WNT */
100
101#include <OpenGl_txgl.hxx>
102int call_util_osd_getenv( char * , char * , int ) ;
103
104/*----------------------------------------------------------------------*/
105/*
106* Variables statiques
107*/
108
109#ifndef WNT
110typedef NCollection_DataMap<Tint, GLCONTEXT> GLContextMap;
111#else
112typedef NCollection_DataMap<Tint, HTBL_ENTRY*> GLContextMap;
113#endif
114
115static GLContextMap _Txgl_Map;
116
117
118#ifndef WNT
119static int BackDitherProp = False; /* Dithering pour le background */
120static int DitherProp = True; /* Dithering pour le trace */
121static GLXContext previous_ctx = 0; /* Use for share display list */
122static GLXContext dead_ctx; /* Context to be destroyed */
123static Display *dead_dpy; /* Display associated with dead_ctx */
124#else
125static int BackDitherProp = FALSE; /* Dithering pour le background */
126static int DitherProp = TRUE; /* Dithering pour le trace */
127static BOOL s_sysPalInUse; /* Flag to check system colors usage */
128static HGLRC previous_ctx = 0; /* Use for share display list */
129#endif /* WNT */
130
131/*----------------------------------------------------------------------*/
132/*
133* Constantes
134*/
135
136#define NO_TRACE
137
138#define CALL_DEF_STRING_LENGTH 132
139
140#define WIN_HTBL_SIZE 23
141
142/*----------------------------------------------------------------------*/
143/*
144* Fonctions statiques
145*/
146
147#ifndef WNT
148#ifdef TRACE
149static GLvoid printVisualInfo( Display *, XVisualInfo *glxVisual );
150#endif
151#else
152#ifdef BUC60691
153static BOOL win95 = FALSE;
154#endif
155
156static int find_pixel_format(HTBL_ENTRY * hte, PIXELFORMATDESCRIPTOR * pfd);
157
158__declspec( dllexport ) int __fastcall __OpenGl_INIT__ (
159 unsigned hInstance, unsigned long reason_for_call
160 ) {
161 if ( reason_for_call == DLL_PROCESS_ATTACH ) {
162
163 }
164 return 1;
165
166 } /* end __OpenGl_INIT__ */
167#endif /* WNT */
168
169 /*----------------------------------------------------------------------*/
170
171 WINDOW
172 TxglCreateWindow( DISPLAY *disp, WINDOW par,
173 Tint x, Tint y, Tint w, Tint h, Tint bw,
174 Tfloat bgcolr, Tfloat bgcolg, Tfloat bgcolb )
175 {
176
177#ifndef WNT
178
179 GLCONTEXT ctx;
180 static int sdesc[11];
181 Colormap cmap;
182 XVisualInfo* vis=NULL;
183 /* XVisualInfo tmplt;*/
184 XSetWindowAttributes cwa;
185 XColor color;
186 /* Tint i, n, nret;*/
187 Tint n;
188 Tint scr;
189 int value;
190 char string[CALL_DEF_STRING_LENGTH];
191 int DBuffer = True;
192 XWindowAttributes wattr;
193
194 WINDOW win;
195
196 unsigned long mask = 0;
197 /* unsigned long background_pixel = 0;*/
198
199 if (call_util_osd_getenv("CALL_OPENGL_NO_DBF", string, CALL_DEF_STRING_LENGTH))
200 DBuffer = False;
201
202 if (call_util_osd_getenv("JWR_PIXMAP_DB", string, CALL_DEF_STRING_LENGTH))
203 TelSetPixmapDB(1);
204
205 XGetWindowAttributes( disp , par , &wattr );
206
207 n = 0;
208 sdesc[n] = GLX_RGBA;n++;
209
210 sdesc[n] = GLX_DEPTH_SIZE;n++;
211 sdesc[n] = 1;n++;
212
213 sdesc[n] = GLX_RED_SIZE;n++;
214 sdesc[n] = (wattr.depth <= 8) ? 0 : 1;n++;
215
216 sdesc[n] = GLX_GREEN_SIZE;n++;
217 sdesc[n] = (wattr.depth <= 8) ? 0 : 1;n++;
218
219 sdesc[n] = GLX_BLUE_SIZE;n++;
220 sdesc[n] = (wattr.depth <= 8) ? 0 : 1;n++;
221
222 if (DBuffer) {
223 sdesc[n] = GLX_DOUBLEBUFFER;n++;
224 }
225
226 sdesc[n] = None;n++;
227
228 scr = DefaultScreen( disp );
229
230#if defined(__linux) || defined(Linux)
231 {
232 XVisualInfo vinfo;
233 int ninfo;
234 unsigned long vmask = VisualIDMask | VisualScreenMask;
235 vinfo.visualid = wattr.visual->visualid;
236 vinfo.screen = DefaultScreen( disp );
237 vis = XGetVisualInfo( disp, vmask, &vinfo, &ninfo);
238 }
239#endif
240
241 if( !vis )
242 vis = glXChooseVisual( disp, scr, sdesc );
243 if( !vis) return TFailure;
244
245#ifdef TRACE
246 printf ("TxglCreateWindow \n");
247 printf ("Informations sur le visual\n");
248 printf ("par visualid %x%x %d\n", wattr.visual->visualid, wattr.visual->visualid);
249 printf ("vis visualid 0x%x %d\n", vis->visualid, vis->visualid);
250 printf ("vis depth %d\n", vis->depth);
251 printf ("vis class %d\n", vis->class);
252 printf ("vis red_mask %ld\n", vis->red_mask);
253 printf ("vis green_mask %ld\n", vis->green_mask);
254 printf ("vis blue_mask %ld\n", vis->blue_mask);
255 printf ("vis colormap_size %d\n", vis->colormap_size);
256 printf ("vis bits_per_rgb %d\n", vis->bits_per_rgb);
257 printVisualInfo( disp, vis );
258#endif
259
260 /*
261 * Le BackDitherProp est utilise pour le clear du background
262 * Pour eviter une difference de couleurs avec la couleur choisie
263 * par l'application (XWindow) il faut desactiver le dithering
264 * au dessus de 8 plans.
265 *
266 * Pour le DitherProp:
267 * On cherchera a activer le Dithering que si le Visual a au moins
268 * 8 plans pour le GLX_RED_SIZE. Le test est plus sur car on peut
269 * avoir une profondeur superieure a 12 mais avoir besoin du dithering.
270 * (Carte Impact avec GLX_RED_SIZE a 5 par exemple)
271 */
272
273 glXGetConfig( disp, vis, GLX_RED_SIZE, &value );
274
275 if ( value < 8 ) {
276 DitherProp = True;
277 }
278 else
279 {
280 DitherProp = False;
281 }
282
283 if ( vis->depth <= 8 ) {
284 BackDitherProp = True;
285 }
286 else
287 {
288 BackDitherProp = False;
289 }
290
291#ifdef TRACE
292 printf("Dithering %d BackDithering %d \n",DitherProp,BackDitherProp);
293#endif
294
295 if (call_util_osd_getenv ("CALL_OPENGL_NO_DITHER", string, CALL_DEF_STRING_LENGTH))
296 DitherProp = False;
297
298 if (call_util_osd_getenv ("CALL_OPENGL_NO_BACKDITHER", string, CALL_DEF_STRING_LENGTH))
299 BackDitherProp = False;
300
301 if (dead_ctx) {
302 /* recover display lists from dead_ctx, then destroy it */
303 ctx = glXCreateContext( disp, vis, dead_ctx, GL_TRUE );
304 glXDestroyContext(dead_dpy, dead_ctx);
305 dead_ctx = 0;
306 } else if (previous_ctx == 0) {
307 ctx = glXCreateContext( disp, vis, NULL, GL_TRUE );
308 } else {
309 /* ctx est une copie du previous */
310 ctx = glXCreateContext( disp, vis, previous_ctx, GL_TRUE );
311 }
312 previous_ctx = ctx;
313
314 if( !ctx) return TFailure;
315
d4c2114a 316 OpenGl_ResourceCleaner::GetInstance()->AppendContext( ctx, true );
317
7fd59977 318 cmap = XCreateColormap( disp, par, vis->visual, AllocNone );
319
320 color.red = (unsigned short) (bgcolr * 0xFFFF);
321 color.green = (unsigned short) (bgcolg * 0xFFFF);
322 color.blue = (unsigned short) (bgcolb * 0xFFFF);
323 color.flags = DoRed | DoGreen | DoBlue;
324 XAllocColor( disp, cmap, &color );
325
326 cwa.colormap = cmap;
327 cwa.event_mask = StructureNotifyMask;
328 cwa.border_pixel = color.pixel;
329 cwa.background_pixel = color.pixel;
330
331 mask = CWBackPixel | CWColormap | CWBorderPixel | CWEventMask;
332
333 if( vis->visualid == wattr.visual->visualid ) {
334 win = par;
335 }
336 else
337 {
338 win = XCreateWindow( disp, par, x, y, w, h, bw,
339 vis->depth, InputOutput, vis->visual,
340 mask, &cwa );
341 }
342
343#ifdef TRACE
344 printf ("TxglCreateWindow win %x par %x \n", win, par);
345#endif
346
347 XSetWindowBackground( disp, win, cwa.background_pixel );
348 XClearWindow( disp, win );
349
350 /* if in Pixmap double buffering mode, set up pixmap */
351
352 if (TelTestPixmapDB())
353 {
354 GC gc;
355 Pixmap pixmap;
356 GLXPixmap glxpixmap;
357
358 printf("setting up pixmap double buffering\n");
359
360 gc = XCreateGC(disp, win, 0, NULL);
361
362 pixmap = XCreatePixmap(disp, win, w, h, vis->depth);
363
364 glxpixmap = glXCreateGLXPixmap(disp, vis, pixmap);
365
366 glXMakeCurrent(disp, glxpixmap, ctx);
367
368 glDrawBuffer(GL_FRONT);
369
370 TelSetPixmapDBParams(disp, win, w, h, vis->depth, gc, pixmap, glxpixmap, ctx);
371 }
372
373 XFree((char*)vis);
374
375 _Txgl_Map.Bind( (Tint)win, ctx );
376
377 return win;
378
379#else /* WNT */
380
381 HTBL_ENTRY* hte;
382 PIXELFORMATDESCRIPTOR pfd;
383 BOOL DBuffer = TRUE;
384 int iPixelFormat;
385 char string[ CALL_DEF_STRING_LENGTH ];
386
387#ifdef BUC60691
388 OSVERSIONINFO os;
389 os.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
390 GetVersionEx(&os);
391 if( os.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS ) win95 = TRUE;
392#endif
393
394 if ( _Txgl_Map.IsBound( (Tint)par ) ) {
395 hte = _Txgl_Map.ChangeFind( (Tint)par );
396 if ( hte )
397 {
398 ++hte -> nUsed;
399 printf("*TxglCreateWindow.window %d is alreday created\n",par);
400 return par;
401 }
402 }
403
404 hte = new HTBL_ENTRY();
405
406 if ( !hte ) return 0;
407 hte -> hDC = GetDC ( par );
408
409 iPixelFormat = find_pixel_format(hte, &pfd);
410
411 if ( !iPixelFormat )
412 {
413 printf ("*OpenGL interface: ChoosePixelFormat failed. Error code: %d\n",GetLastError ());
414
415 ReleaseDC ( par, hte -> hDC );
416 delete hte;
417
418 return 0;
419 }
420
421 if ( pfd.dwFlags & PFD_NEED_PALETTE )
422 {
8ab673bb 423 WINDOW_DATA* wd = ( WINDOW_DATA* )GetWindowLongPtr ( par, GWLP_USERDATA );
7fd59977 424
425 InterfaceGraphic_RealizePalette (hte -> hDC, wd -> hPal, FALSE,
426 s_sysPalInUse = pfd.dwFlags & PFD_NEED_SYSTEM_PALETTE ? TRUE : FALSE);
427 }
428
429 if ( pfd.cColorBits <= 8 )
430 {
431 DitherProp = TRUE;
432 BackDitherProp = TRUE;
433 }
434
435 if (call_util_osd_getenv ("CALL_OPENGL_NO_DITHER", string, CALL_DEF_STRING_LENGTH))
436 DitherProp = FALSE;
437
438 if (call_util_osd_getenv ("CALL_OPENGL_NO_BACKDITHER", string, CALL_DEF_STRING_LENGTH))
439 BackDitherProp = FALSE;
440
441 if ( !SetPixelFormat ( hte -> hDC, iPixelFormat, &pfd ) )
442 {
443 printf ("*OpenGL interface: SetPixelFormat failed. Error code %d\n",GetLastError ());
444 ReleaseDC ( par, hte -> hDC );
445 delete hte;
446 return 0;
447 }
448
449 hte -> hGLRC = wglCreateContext ( hte -> hDC );
450
451 if ( !hte -> hGLRC )
452 {
453 printf ("*OpenGL interface: wglCreateContext failed. Error code: %d\n",GetLastError ());
454 return 0;
455 }
456
d4c2114a 457 Standard_Boolean isShared = Standard_True;
458
459 if (previous_ctx == 0 )
8ab673bb 460 previous_ctx = hte -> hGLRC;
d4c2114a 461 // if we already have some shared context
462 else
463 {
464 // try to share context with one from resource cleaner list
465 GLCONTEXT shareCtx = OpenGl_ResourceCleaner::GetInstance()->GetSharedContext();
466
467 if (shareCtx != 0)
468 isShared = (Standard_Boolean)wglShareLists(shareCtx, hte -> hGLRC);
469 else
470 {
471 isShared = (Standard_Boolean)wglShareLists(previous_ctx, hte -> hGLRC);
472 // add shared previous_ctx to a control list if it's not there
473 if (isShared)
474 OpenGl_ResourceCleaner::GetInstance()->AppendContext(previous_ctx, isShared);
475 }
476 }
7fd59977 477
d4c2114a 478 // add the context to OpenGl_ResourceCleaner control list
479 OpenGl_ResourceCleaner::GetInstance()->AppendContext( hte -> hGLRC, isShared);
7fd59977 480 _Txgl_Map.Bind( (Tint)par, hte );
481
482 return par;
483
484#endif /* WNT */
485
486 }
487
488#ifdef RIC120302
489 WINDOW
490 TxglSetWindow( DISPLAY *disp, WINDOW par, GLCONTEXT ctx)
491 {
492#ifndef WNT
493 XVisualInfo* vis;
494 char string[CALL_DEF_STRING_LENGTH];
495 XWindowAttributes wattr;
496
497 XGetWindowAttributes( disp , par , &wattr );
498 {
499 unsigned long vmask = VisualIDMask | VisualScreenMask;
500 XVisualInfo vinfo;
501 int ninfo;
502 vinfo.visualid = wattr.visual->visualid;
503 vinfo.screen = DefaultScreen( disp );
504 vis = XGetVisualInfo( disp, vmask, &vinfo, &ninfo);
505 }
506
507 if( !vis) return TFailure;
508
509#ifdef TRACE
510 printf ("TxglSetWindow \n");
511 printf ("Informations sur le visual\n");
512 printf ("par visualid %x%x %d\n", wattr.visual->visualid, wattr.visual->visualid);
513 printf ("vis visualid 0x%x %d\n", vis->visualid, vis->visualid);
514 printf ("vis depth %d\n", vis->depth);
515 printf ("vis class %d\n", vis->class);
516 printf ("vis red_mask %ld\n", vis->red_mask);
517 printf ("vis green_mask %ld\n", vis->green_mask);
518 printf ("vis blue_mask %ld\n", vis->blue_mask);
519 printf ("vis colormap_size %d\n", vis->colormap_size);
520 printf ("vis bits_per_rgb %d\n", vis->bits_per_rgb);
521 printVisualInfo( disp, vis );
522#endif
523
524 /*
525 * Le BackDitherProp est utilise pour le clear du background
526 * Pour eviter une difference de couleurs avec la couleur choisie
527 * par l'application (XWindow) il faut desactiver le dithering
528 * au dessus de 8 plans.
529 *
530 * Pour le DitherProp:
531 * On cherchera a activer le Dithering que si le Visual a au moins
532 * 8 plans pour le GLX_RED_SIZE. Le test est plus sur car on peut
533 * avoir une profondeur superieure a 12 mais avoir besoin du dithering.
534 * (Carte Impact avec GLX_RED_SIZE a 5 par exemple)
535 */
536
537 {
538 int value;
539 glXGetConfig( disp, vis, GLX_RED_SIZE, &value );
540
541 if ( value < 8 ) {
542 DitherProp = True;
543 } else {
544 DitherProp = False;
545 }
546
547 if ( vis->depth <= 8 ) {
548 BackDitherProp = True;
549 } else {
550 BackDitherProp = False;
551 }
552 }
553
554#ifdef TRACE
555 printf("Dithering %d BackDithering %d \n",DitherProp,BackDitherProp);
556#endif
557
558 if (call_util_osd_getenv ("CALL_OPENGL_NO_DITHER", string, CALL_DEF_STRING_LENGTH))
559 DitherProp = False;
560
561 if (call_util_osd_getenv ("CALL_OPENGL_NO_BACKDITHER", string, CALL_DEF_STRING_LENGTH))
562 BackDitherProp = False;
563
564 previous_ctx = ctx;
565
566 XFree((char*)vis);
567
568 _Txgl_Map.Bind( ( Tint )par, ctx );
569#else /* WNT */
570
571 /* abd
572 cmn_htbl_elem rec;*/
573 HTBL_ENTRY* hte;
574 PIXELFORMATDESCRIPTOR pfd;
575 BOOL DBuffer = TRUE;
576 int iPixelFormat;
577 char string[ CALL_DEF_STRING_LENGTH ];
578
579#ifdef BUC60691
580 OSVERSIONINFO os;
581 os.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
582 GetVersionEx(&os);
583 if( os.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS ) win95 = TRUE;
584#endif
585
586 if ( _Txgl_Map.IsBound( ( Tint )par ) )
587 {
588 hte = _Txgl_Map.ChangeFind( ( Tint )par );
589 ++hte -> nUsed;
590 printf("*TxglSetWindow.window %d is alreday created\n",par);
591 return par;
592 }
593
594 hte = new HTBL_ENTRY();
595
596 if ( !hte ) return 0;
597
598 hte -> hDC = GetDC ( par );
599 iPixelFormat = find_pixel_format(hte, &pfd);
600
601 if ( !iPixelFormat )
602 {
603 printf ("*OpenGL interface: ChoosePixelFormat failed. Error code: %d\n",GetLastError ());
604
605 ReleaseDC ( par, hte -> hDC );
606 delete hte;
607
608 return 0;
609 }
610
611 if ( pfd.dwFlags & PFD_NEED_PALETTE )
612 {
8ab673bb 613 WINDOW_DATA* wd = ( WINDOW_DATA* )GetWindowLongPtr ( par, GWLP_USERDATA );
7fd59977 614
615 InterfaceGraphic_RealizePalette (hte -> hDC, wd -> hPal, FALSE,
616 s_sysPalInUse = pfd.dwFlags & PFD_NEED_SYSTEM_PALETTE ? TRUE : FALSE);
617 }
618
619 if ( pfd.cColorBits <= 8 )
620 {
621 DitherProp = TRUE;
622 BackDitherProp = TRUE;
623 }
624
625 if (call_util_osd_getenv ("CALL_OPENGL_NO_DITHER", string, CALL_DEF_STRING_LENGTH))
626 DitherProp = FALSE;
627
628 if (call_util_osd_getenv ("CALL_OPENGL_NO_BACKDITHER", string, CALL_DEF_STRING_LENGTH))
629 BackDitherProp = FALSE;
630
631 if ( !SetPixelFormat ( hte -> hDC, iPixelFormat, &pfd ) )
632 {
633 printf ("*OpenGL interface: SetPixelFormat failed. Error code %d\n",GetLastError ());
634 ReleaseDC ( par, hte -> hDC );
635 delete hte;
636 return 0;
637 }
638
639 hte -> hGLRC = previous_ctx = ctx;
640
641 _Txgl_Map.Bind( ( Tint )par, hte );
642#endif /* WNT */
643
644 return par;
645
646 }
647#endif /*RIC120302*/
648
649 /*----------------------------------------------------------------------*/
650
651 TStatus
652 TxglWinset( DISPLAY *disp, WINDOW win )
653 {
654
655#ifndef WNT
656
657 Bool i;
658 GLXContext ctx;
659 GLenum errorcode;
660 const GLubyte *errorstring;
661
662 if ( !_Txgl_Map.IsBound( win ) )
663 return TFailure;
664
665 ctx = _Txgl_Map.ChangeFind( win );
666
667
668#ifdef TRACE
669 printf ("TxglWinset::glXMakeCurrent %x \n", win);
670#endif
671 if (TelTestPixmapDB())
672 {
673 i = glXMakeCurrent(disp, TelGetGLXPixmap(), ctx);
674 }
675 else
676 {
677 i = glXMakeCurrent(disp, win, ctx); /* TRUE/FALSE */
678 }
679 if (!i)
680 {
681 errorcode = glGetError();
682 errorstring = gluErrorString(errorcode);
683 printf("glXMakeCurrent failed: %d %s\n", errorcode, errorstring);
684 }
685
686 return i == True ? TSuccess : TFailure;
687
688#else /* WNT */
689
690 HTBL_ENTRY* hte;
691 HDC hdc = NULL;
692 HGLRC hglrc = NULL;
693 TStatus retVal = TFailure;
694
695 __try {
696
697 if ( !_Txgl_Map.IsBound( ( Tint )win ) ) {
698 printf("OpenGL interface: TxglWinset failed.UNKNOWN win %x\n",win);
699 __leave;
700 }
701 hte = _Txgl_Map.ChangeFind( ( Tint )win );
702
703#ifdef BUC60691
704 if( win95 ) {
705 retVal = (TStatus)ReleaseDC ( win, hte -> hDC );
706 hte -> hDC = GetDC ( win );
707 }
708#endif
709 if ( !wglMakeCurrent ( hte -> hDC, hte -> hGLRC ) )
710 {
711#ifdef BUC60691
712 GLenum errorcode;
713 const GLubyte *errorstring;
714
715 errorcode = glGetError();
716 errorstring = gluErrorString(errorcode);
717 printf("wglMakeCurrent failed: %d %s\n", errorcode, errorstring);
718#else
719 printf ("OpenGL interface: wglMakeCurrent failed. Error code: %d\n",GetLastError ());
720#endif
721 retVal = TFailure;
722 } else retVal = TSuccess;
723
724 } /* end __try */
725
726
727 __finally
728 {
729 }
730
731 return retVal;
732
733#endif /* WNT */
734
735 }
736
737 /*----------------------------------------------------------------------*/
738
739 WINDOW
740 TxglGetSubWindow( DISPLAY *disp, WINDOW win )
741 /* This function assumes that there is only
742 one child for the parent */
743 {
744
745#ifndef WNT
746
747 Window root, parent, *child, w;
748 unsigned int num;
749
750 if( XQueryTree( disp, win, &root, &parent, &child, &num ) )
751 {
752 if (! num) return win;
753 w = child[0];
754 XFree( (char *)child );
755 return w;
756 }
757 else
758 return 0;
759
760#else /* WNT */
761
762 return win;
763
764#endif /* WNT */
765
766 }
767
768 /*----------------------------------------------------------------------*/
769
770 void
771 TxglDestroyWindow( DISPLAY *disp, WINDOW win )
772 {
773
774#ifndef WNT
775
776 GLXContext ctx;
777 Tint dummy;
778
779 if ( !_Txgl_Map.IsBound(win) )
780 return;
781 ctx = _Txgl_Map.ChangeFind(win);
782
783 /* FSXXX sync necessary if non-direct rendering */
784 glXWaitGL();
785
d4c2114a 786 OpenGl_ResourceCleaner::GetInstance()->RemoveContext( ctx );
7fd59977 787 _Txgl_Map.UnBind( win );
788
789 if (previous_ctx == ctx) {
790 /* san -- OCC12977: it's important to put some valid GLXContext or null into
791 previous_ctx here, otherwise next glxCreateContext() will crash on some ATI Radeon cards
792 */
793 previous_ctx = NULL;
794 if ( _Txgl_Map.Size() > 0 ) {
795 GLContextMap::Iterator it(_Txgl_Map);
796 previous_ctx = it.Value();
797 }
798 /*
799 * if this is the last remaining context, do not destroy it yet, to avoid
800 * losing any shared display lists (fonts...)
801 */
802 if (previous_ctx) {
803 glXDestroyContext(disp, ctx);
804 } else {
805 dead_ctx = ctx;
806 dead_dpy = disp;
807 }
808 } else {
809 glXDestroyContext(disp, ctx);
810 }
811
812#else /* WNT */
813
814 HTBL_ENTRY* hte;
815#ifdef _DEBUG
816 WINDOW_DATA* wd;
817#endif /* _DEBUG */
818 if ( !_Txgl_Map.IsBound(( Tint )win) )
819 return;
820 hte = _Txgl_Map.ChangeFind(( Tint )win);
821
822#ifdef _DEBUG
823 /* In release version of application we need to process */
824 /* palette messages in the main application message loop. */
825 /* In debug version we don't have message loop for most */
826 /* cases. So, let's restore system colors here now. */
8ab673bb 827 wd = ( WINDOW_DATA* )GetWindowLongPtr ( win, GWLP_USERDATA );
7fd59977 828
829 if ( wd != NULL ) InterfaceGraphic_RealizePalette (
830 hte -> hDC, wd -> hPal, TRUE, s_sysPalInUse);
831#endif /* _DEBUG */
832
833 if ( --hte -> nUsed == 0 )
834 {
d4c2114a 835 OpenGl_ResourceCleaner::GetInstance()->RemoveContext( hte -> hGLRC );
7fd59977 836#ifdef OCC954
837 if ( wglGetCurrentContext() != NULL )
838#endif
839 wglDeleteContext ( hte -> hGLRC );
840 ReleaseDC ( win, hte -> hDC );
841 _Txgl_Map.UnBind( (Tint ) win );
d4c2114a 842 if( _Txgl_Map.Size() == 0 ) {
843 previous_ctx = 0;
844 }
7fd59977 845 delete hte;
846 }
847
848#endif /* WNT */
849
850 }
851
852 /*----------------------------------------------------------------------*/
853
854 int
855 TxglGetDither(void)
856 {
857 return DitherProp;
858 }
859
860 /*----------------------------------------------------------------------*/
861
862 int
863 TxglGetBackDither(void)
864 {
865 return BackDitherProp;
866 }
867
868
869 /*----------------------------------------------------------------------*/
870 /*RIC120302*/
871 GLCONTEXT
872 TxglGetContext( WINDOW win )
873 {
874 GLCONTEXT ctx = NULL;
875 if ( _Txgl_Map.IsBound( (Tint) win ) )
876 ctx =
877#ifdef WNT
878 _Txgl_Map.Find( (Tint) win )->hGLRC;
879#else
880 _Txgl_Map.Find( win );
881#endif
882
883 return ctx;
884 }
885 /*RIC120302*/
886
887 /*----------------------------------------------------------------------*/
888 enum { ZERO = 0, ONE, TWO, THREE, FOUR, FIVE, SIX, SEVEN, EIGHT, NINE, TEN };
889
890 /* Unused :*/
891#ifdef TRACE
892 static const char*
893 className( int class )
894 {
895 static char *classes[] = {
896 "StaticGray",
897 "GrayScale",
898 "StaticColor",
899 "PseudoColor",
900 "TrueColor",
901 "DirectColor",
902 };
903
904 if ( class < ZERO || class > FIVE )
905 return "unknown";
906 else
907 return classes[class];
908 }
909#endif
910 /*----------------------------------------------------------------------*/
911#ifndef WNT
912
913#ifdef TRACE
914 static GLvoid printVisualInfo( DISPLAY *display, XVisualInfo *glxVisual )
915 {
916
917#define TrueFalse(x) ( x ? "True" : "False" )
918
919 int tmp;
920
921 printf("\n" );
922 printf(" X Visual Information ...\n\n" );
923 printf("\tvisualid : 0x%x\n", glxVisual->visualid );
924 printf("\tclass : %s\n\n", className( glxVisual->class ) );
925
926 glXGetConfig(display, glxVisual, GLX_USE_GL, &tmp);
927 printf( "\tSupport GL ( GLX_USE_GL ) : %s\n", TrueFalse(tmp) );
928
929 glXGetConfig(display, glxVisual, GLX_LEVEL, &tmp);
930 printf( "\tFramebuffer ( GLX_LEVEL ) : %s\n\n",
931 (tmp < ZERO) ? "Underlay" : (tmp == ZERO ? "Normal" : tmp > ONE ? "Overlay" : "Popup") );
932
933 glXGetConfig(display, glxVisual, GLX_BUFFER_SIZE, &tmp);
934 printf( "\tFramebuffer depth ( GLX_BUFFER_SIZE ) : %d\n", tmp );
935
936 glXGetConfig(display, glxVisual, GLX_DOUBLEBUFFER, &tmp);
937 printf( "\tDoublebuffer ( GLX_DOUBLEBUFFER ) : %s\n",
938 TrueFalse(tmp) );
939
940 glXGetConfig(display, glxVisual, GLX_DEPTH_SIZE, &tmp);
941 printf( "\tDepth buffer depth ( GLX_DEPTH_SIZE ) : %d\n", tmp );
942
943 glXGetConfig(display, glxVisual, GLX_STENCIL_SIZE, &tmp);
944 printf( "\tStencil buffer depth ( GLX_STENCIL_SIZE ) : %d\n", tmp );
945
946 glXGetConfig(display, glxVisual, GLX_STEREO, &tmp);
947 printf( "\tStereo Buffer ( GLX_STEREO ) : %s\n",
948 TrueFalse(tmp) );
949
950 glXGetConfig(display, glxVisual, GLX_AUX_BUFFERS, &tmp);
951 printf( "\tAuxillary Buffers ( GLX_AUX_BUFFERS) : %d\n\n", tmp );
952
953 glXGetConfig(display, glxVisual, GLX_RGBA, &tmp);
954 printf( "\tColor mode ( GLX_RGBA ) : %s\n", tmp ? "RGBA" :
955 "Color Index" );
956
957 glXGetConfig(display, glxVisual, GLX_RED_SIZE, &tmp);
958 printf( "\tRed Bits ( GLX_RED_SIZE ) : %d\n", tmp );
959
960 glXGetConfig(display, glxVisual, GLX_GREEN_SIZE, &tmp);
961 printf( "\tGreen Bits ( GLX_GREEN_SIZE ) : %d\n", tmp );
962
963 glXGetConfig(display, glxVisual, GLX_BLUE_SIZE, &tmp);
964 printf( "\tBlue Bits ( GLX_BLUE_SIZE ) : %d\n", tmp );
965
966 glXGetConfig(display, glxVisual, GLX_ALPHA_SIZE, &tmp);
967 printf( "\tAlpha Bits ( GLX_ALPHA_SIZE ) : %d\n\n", tmp );
968
969 glXGetConfig(display, glxVisual, GLX_ACCUM_RED_SIZE, &tmp);
970 printf( "\tRed Accumulation Bits ( GLX_ACCUM_RED_SIZE ) : %d\n", tmp );
971
972 glXGetConfig(display, glxVisual, GLX_ACCUM_GREEN_SIZE, &tmp);
973 printf( "\tGreen Accumulation Bits ( GLX_ACCUM_GREEN_SIZE ) : %d\n", tmp );
974
975 glXGetConfig(display, glxVisual, GLX_ACCUM_BLUE_SIZE, &tmp);
976 printf( "\tBlue Accumulation Bits ( GLX_ACCUM_BLUE_SIZE ) : %d\n", tmp );
977
978 glXGetConfig(display, glxVisual, GLX_ACCUM_ALPHA_SIZE, &tmp);
979 printf( "\tAlpha Accumulation Bits ( GLX_ACCUM_ALPHA_SIZE ) : %d\n\n", tmp );
980 }
981#endif //TRACE
982#else //WNT
983 int find_pixel_format(HTBL_ENTRY * hte, PIXELFORMATDESCRIPTOR * pfd)
984 {
985 int iPixelFormat = 0;
986 int iGood = 0;
987 int i, j;
988 PIXELFORMATDESCRIPTOR pfd0;
989 char string[ CALL_DEF_STRING_LENGTH ];
990 BOOL DBuffer = TRUE;
991 const int cBits[] = { 32, 24 };
992 const int dBits[] = { 32, 24, 16 };
993
994 if (call_util_osd_getenv ("CALL_OPENGL_NO_DBF",
995 string, CALL_DEF_STRING_LENGTH))
996 DBuffer = FALSE;
997
998 pfd0.nSize = sizeof ( PIXELFORMATDESCRIPTOR );
999 pfd0.nVersion = 1;
1000 pfd0.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
1001 pfd0.dwFlags |= ( DBuffer ) ? PFD_DOUBLEBUFFER : PFD_SUPPORT_GDI;
1002 pfd0.iPixelType = PFD_TYPE_RGBA;
1003 pfd0.cRedBits = 0;
1004 pfd0.cRedShift = 0;
1005 pfd0.cGreenBits = 0;
1006 pfd0.cGreenShift = 0;
1007 pfd0.cBlueBits = 0;
1008 pfd0.cBlueShift = 0;
1009 pfd0.cAlphaBits = 0;
1010 pfd0.cAlphaShift = 0;
1011 pfd0.cAccumBits = 0;
1012 pfd0.cAccumRedBits = 0;
1013 pfd0.cAccumGreenBits = 0;
1014 pfd0.cAccumBlueBits = 0;
1015 pfd0.cAccumAlphaBits = 0;
1016 pfd0.cStencilBits = 0;
1017 pfd0.cAuxBuffers = 0;
1018 pfd0.iLayerType = PFD_MAIN_PLANE;
1019 pfd0.bReserved = 0;
1020 pfd0.dwLayerMask = 0;
1021 pfd0.dwVisibleMask = 0;
1022 pfd0.dwDamageMask = 0;
1023
1024 hte -> nUsed = 1;
1025
1026 for (i = 0; i < sizeof(dBits) / sizeof(int); i++) {
1027
1028 pfd0.cDepthBits = dBits[i];
1029 iGood = 0;
1030 for (j = 0; j < sizeof(cBits) / sizeof(int); j++) {
1031
1032 pfd0.cColorBits = cBits[j];
1033 iPixelFormat = ChoosePixelFormat ( hte -> hDC, &pfd0 );
1034
1035 if (iPixelFormat) {
1036 pfd->cDepthBits = 0;
1037 pfd->cColorBits = 0;
1038 DescribePixelFormat (hte -> hDC, iPixelFormat,
1039 sizeof ( PIXELFORMATDESCRIPTOR ), pfd);
1040 if (pfd->cColorBits >= cBits[j] && pfd->cDepthBits >= dBits[i])
1041 break;
1042 if (iGood == 0)
1043 iGood = iPixelFormat;
1044 }
1045 }
1046 if (j < sizeof(cBits) / sizeof(int))
1047 break;
1048 }
1049
1050 if ( !iPixelFormat )
1051 iPixelFormat = iGood;
1052
1053 return iPixelFormat;
1054 }
1055
1056#endif /* WNT */
1057 /*----------------------------------------------------------------------*/
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