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C++ fixes, mostly casts (Stephane Conversy)
[mesa.git] / src / mesa / drivers / x11 / fakeglx.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 6.5
4 *
5 * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 /*
27 * This is an emulation of the GLX API which allows Mesa/GLX-based programs
28 * to run on X servers which do not have the real GLX extension.
29 *
30 * Thanks to the contributors:
31 *
32 * Initial version: Philip Brown (phil@bolthole.com)
33 * Better glXGetConfig() support: Armin Liebchen (liebchen@asylum.cs.utah.edu)
34 * Further visual-handling refinements: Wolfram Gloger
35 * (wmglo@Dent.MED.Uni-Muenchen.DE).
36 *
37 * Notes:
38 * Don't be fooled, stereo isn't supported yet.
39 */
40
41
42
43 #include "glxheader.h"
44 #include "glxapi.h"
45 #include "GL/xmesa.h"
46 #include "context.h"
47 #include "config.h"
48 #include "macros.h"
49 #include "imports.h"
50 #include "mtypes.h"
51 #include "version.h"
52 #include "xfonts.h"
53 #include "xmesaP.h"
54
55 #ifdef __VMS
56 #define _mesa_sprintf sprintf
57 #endif
58
59 /* This indicates the client-side GLX API and GLX encoder version. */
60 #define CLIENT_MAJOR_VERSION 1
61 #define CLIENT_MINOR_VERSION 4 /* but don't have 1.3's pbuffers, etc yet */
62
63 /* This indicates the server-side GLX decoder version.
64 * GLX 1.4 indicates OpenGL 1.3 support
65 */
66 #define SERVER_MAJOR_VERSION 1
67 #define SERVER_MINOR_VERSION 4
68
69 /* This is appended onto the glXGetClient/ServerString version strings. */
70 #define MESA_GLX_VERSION "Mesa " MESA_VERSION_STRING
71
72 /* Who implemented this GLX? */
73 #define VENDOR "Brian Paul"
74
75 #define EXTENSIONS \
76 "GLX_MESA_set_3dfx_mode " \
77 "GLX_MESA_copy_sub_buffer " \
78 "GLX_MESA_pixmap_colormap " \
79 "GLX_MESA_release_buffers " \
80 "GLX_ARB_get_proc_address " \
81 "GLX_EXT_visual_info " \
82 "GLX_EXT_visual_rating " \
83 "GLX_SGI_video_sync " \
84 "GLX_SGIX_fbconfig " \
85 "GLX_SGIX_pbuffer "
86
87 /*
88 * Our fake GLX context will contain a "real" GLX context and an XMesa context.
89 *
90 * Note that a pointer to a __GLXcontext is a pointer to a fake_glx_context,
91 * and vice versa.
92 *
93 * We really just need this structure in order to make the libGL functions
94 * glXGetCurrentContext(), glXGetCurrentDrawable() and glXGetCurrentDisplay()
95 * work correctly.
96 */
97 struct fake_glx_context {
98 __GLXcontext glxContext; /* this MUST be first! */
99 XMesaContext xmesaContext;
100 };
101
102
103
104 /**********************************************************************/
105 /*** GLX Visual Code ***/
106 /**********************************************************************/
107
108 #define DONT_CARE -1
109
110
111 static XMesaVisual *VisualTable = NULL;
112 static int NumVisuals = 0;
113
114
115 /*
116 * This struct and some code fragments borrowed
117 * from Mark Kilgard's GLUT library.
118 */
119 typedef struct _OverlayInfo {
120 /* Avoid 64-bit portability problems by being careful to use
121 longs due to the way XGetWindowProperty is specified. Note
122 that these parameters are passed as CARD32s over X
123 protocol. */
124 unsigned long overlay_visual;
125 long transparent_type;
126 long value;
127 long layer;
128 } OverlayInfo;
129
130
131
132 /* Macro to handle c_class vs class field name in XVisualInfo struct */
133 #if defined(__cplusplus) || defined(c_plusplus)
134 #define CLASS c_class
135 #else
136 #define CLASS class
137 #endif
138
139
140
141 /*
142 * Test if the given XVisualInfo is usable for Mesa rendering.
143 */
144 static GLboolean
145 is_usable_visual( XVisualInfo *vinfo )
146 {
147 switch (vinfo->CLASS) {
148 case StaticGray:
149 case GrayScale:
150 /* Any StaticGray/GrayScale visual works in RGB or CI mode */
151 return GL_TRUE;
152 case StaticColor:
153 case PseudoColor:
154 /* Any StaticColor/PseudoColor visual of at least 4 bits */
155 if (vinfo->depth>=4) {
156 return GL_TRUE;
157 }
158 else {
159 return GL_FALSE;
160 }
161 case TrueColor:
162 case DirectColor:
163 /* Any depth of TrueColor or DirectColor works in RGB mode */
164 return GL_TRUE;
165 default:
166 /* This should never happen */
167 return GL_FALSE;
168 }
169 }
170
171
172
173 /**
174 * Get an array OverlayInfo records for specified screen.
175 * \param dpy the display
176 * \param screen screen number
177 * \param numOverlays returns numver of OverlayInfo records
178 * \return pointer to OverlayInfo array, free with XFree()
179 */
180 static OverlayInfo *
181 GetOverlayInfo(Display *dpy, int screen, int *numOverlays)
182 {
183 Atom overlayVisualsAtom;
184 Atom actualType;
185 Status status;
186 unsigned char *ovInfo;
187 unsigned long sizeData, bytesLeft;
188 int actualFormat;
189
190 /*
191 * The SERVER_OVERLAY_VISUALS property on the root window contains
192 * a list of overlay visuals. Get that list now.
193 */
194 overlayVisualsAtom = XInternAtom(dpy,"SERVER_OVERLAY_VISUALS", True);
195 if (overlayVisualsAtom == None) {
196 return 0;
197 }
198
199 status = XGetWindowProperty(dpy, RootWindow(dpy, screen),
200 overlayVisualsAtom, 0L, (long) 10000, False,
201 overlayVisualsAtom, &actualType, &actualFormat,
202 &sizeData, &bytesLeft,
203 &ovInfo);
204
205 if (status != Success || actualType != overlayVisualsAtom ||
206 actualFormat != 32 || sizeData < 4) {
207 /* something went wrong */
208 XFree((void *) ovInfo);
209 *numOverlays = 0;
210 return NULL;
211 }
212
213 *numOverlays = sizeData / 4;
214 return (OverlayInfo *) ovInfo;
215 }
216
217
218
219 /**
220 * Return the level (overlay, normal, underlay) of a given XVisualInfo.
221 * Input: dpy - the X display
222 * vinfo - the XVisualInfo to test
223 * Return: level of the visual:
224 * 0 = normal planes
225 * >0 = overlay planes
226 * <0 = underlay planes
227 */
228 static int
229 level_of_visual( Display *dpy, XVisualInfo *vinfo )
230 {
231 OverlayInfo *overlay_info;
232 int numOverlaysPerScreen, i;
233
234 overlay_info = GetOverlayInfo(dpy, vinfo->screen, &numOverlaysPerScreen);
235 if (!overlay_info) {
236 return 0;
237 }
238
239 /* search the overlay visual list for the visual ID of interest */
240 for (i = 0; i < numOverlaysPerScreen; i++) {
241 const OverlayInfo *ov = overlay_info + i;
242 if (ov->overlay_visual == vinfo->visualid) {
243 /* found the visual */
244 if (/*ov->transparent_type==1 &&*/ ov->layer!=0) {
245 int level = ov->layer;
246 XFree((void *) overlay_info);
247 return level;
248 }
249 else {
250 XFree((void *) overlay_info);
251 return 0;
252 }
253 }
254 }
255
256 /* The visual ID was not found in the overlay list. */
257 XFree((void *) overlay_info);
258 return 0;
259 }
260
261
262
263
264 /*
265 * Given an XVisualInfo and RGB, Double, and Depth buffer flags, save the
266 * configuration in our list of GLX visuals.
267 */
268 static XMesaVisual
269 save_glx_visual( Display *dpy, XVisualInfo *vinfo,
270 GLboolean rgbFlag, GLboolean alphaFlag, GLboolean dbFlag,
271 GLboolean stereoFlag,
272 GLint depth_size, GLint stencil_size,
273 GLint accumRedSize, GLint accumGreenSize,
274 GLint accumBlueSize, GLint accumAlphaSize,
275 GLint level, GLint numAuxBuffers )
276 {
277 GLboolean ximageFlag = GL_TRUE;
278 XMesaVisual xmvis;
279 GLint i;
280 GLboolean comparePointers;
281
282 if (dbFlag) {
283 /* Check if the MESA_BACK_BUFFER env var is set */
284 char *backbuffer = _mesa_getenv("MESA_BACK_BUFFER");
285 if (backbuffer) {
286 if (backbuffer[0]=='p' || backbuffer[0]=='P') {
287 ximageFlag = GL_FALSE;
288 }
289 else if (backbuffer[0]=='x' || backbuffer[0]=='X') {
290 ximageFlag = GL_TRUE;
291 }
292 else {
293 _mesa_warning(NULL, "Mesa: invalid value for MESA_BACK_BUFFER environment variable, using an XImage.");
294 }
295 }
296 }
297
298 /* Comparing IDs uses less memory but sometimes fails. */
299 /* XXX revisit this after 3.0 is finished. */
300 if (_mesa_getenv("MESA_GLX_VISUAL_HACK"))
301 comparePointers = GL_TRUE;
302 else
303 comparePointers = GL_FALSE;
304
305 /* Force the visual to have an alpha channel */
306 if (rgbFlag && _mesa_getenv("MESA_GLX_FORCE_ALPHA"))
307 alphaFlag = GL_TRUE;
308
309 /* First check if a matching visual is already in the list */
310 for (i=0; i<NumVisuals; i++) {
311 XMesaVisual v = VisualTable[i];
312 if (v->display == dpy
313 && v->mesa_visual.level == level
314 && v->mesa_visual.numAuxBuffers == numAuxBuffers
315 && v->ximage_flag == ximageFlag
316 && v->mesa_visual.rgbMode == rgbFlag
317 && v->mesa_visual.doubleBufferMode == dbFlag
318 && v->mesa_visual.stereoMode == stereoFlag
319 && (v->mesa_visual.alphaBits > 0) == alphaFlag
320 && (v->mesa_visual.depthBits >= depth_size || depth_size == 0)
321 && (v->mesa_visual.stencilBits >= stencil_size || stencil_size == 0)
322 && (v->mesa_visual.accumRedBits >= accumRedSize || accumRedSize == 0)
323 && (v->mesa_visual.accumGreenBits >= accumGreenSize || accumGreenSize == 0)
324 && (v->mesa_visual.accumBlueBits >= accumBlueSize || accumBlueSize == 0)
325 && (v->mesa_visual.accumAlphaBits >= accumAlphaSize || accumAlphaSize == 0)) {
326 /* now either compare XVisualInfo pointers or visual IDs */
327 if ((!comparePointers && v->visinfo->visualid == vinfo->visualid)
328 || (comparePointers && v->vishandle == vinfo)) {
329 return v;
330 }
331 }
332 }
333
334 /* Create a new visual and add it to the list. */
335
336 xmvis = XMesaCreateVisual( dpy, vinfo, rgbFlag, alphaFlag, dbFlag,
337 stereoFlag, ximageFlag,
338 depth_size, stencil_size,
339 accumRedSize, accumBlueSize,
340 accumBlueSize, accumAlphaSize, 0, level,
341 GLX_NONE_EXT );
342 if (xmvis) {
343 /* Save a copy of the pointer now so we can find this visual again
344 * if we need to search for it in find_glx_visual().
345 */
346 xmvis->vishandle = vinfo;
347 /* Allocate more space for additional visual */
348 VisualTable = (XMesaVisual *) _mesa_realloc( VisualTable,
349 sizeof(XMesaVisual) * NumVisuals,
350 sizeof(XMesaVisual) * (NumVisuals + 1));
351 /* add xmvis to the list */
352 VisualTable[NumVisuals] = xmvis;
353 NumVisuals++;
354 /* XXX minor hack, because XMesaCreateVisual doesn't support an
355 * aux buffers parameter.
356 */
357 xmvis->mesa_visual.numAuxBuffers = numAuxBuffers;
358 }
359 return xmvis;
360 }
361
362
363 /**
364 * Return the default number of bits for the Z buffer.
365 * If defined, use the MESA_GLX_DEPTH_BITS env var value.
366 * Otherwise, use the DEFAULT_SOFTWARE_DEPTH_BITS constant.
367 * XXX probably do the same thing for stencil, accum, etc.
368 */
369 static GLint
370 default_depth_bits(void)
371 {
372 int zBits;
373 const char *zEnv = _mesa_getenv("MESA_GLX_DEPTH_BITS");
374 if (zEnv)
375 zBits = _mesa_atoi(zEnv);
376 else
377 zBits = DEFAULT_SOFTWARE_DEPTH_BITS;
378 return zBits;
379 }
380
381 static GLint
382 default_alpha_bits(void)
383 {
384 int aBits;
385 const char *aEnv = _mesa_getenv("MESA_GLX_ALPHA_BITS");
386 if (aEnv)
387 aBits = _mesa_atoi(aEnv);
388 else
389 aBits = 0;
390 return aBits;
391 }
392
393 static GLint
394 default_accum_bits(void)
395 {
396 return 16;
397 }
398
399
400
401 /*
402 * Create a GLX visual from a regular XVisualInfo.
403 * This is called when Fake GLX is given an XVisualInfo which wasn't
404 * returned by glXChooseVisual. Since this is the first time we're
405 * considering this visual we'll take a guess at reasonable values
406 * for depth buffer size, stencil size, accum size, etc.
407 * This is the best we can do with a client-side emulation of GLX.
408 */
409 static XMesaVisual
410 create_glx_visual( Display *dpy, XVisualInfo *visinfo )
411 {
412 int vislevel;
413 GLint zBits = default_depth_bits();
414 GLint accBits = default_accum_bits();
415 GLboolean alphaFlag = default_alpha_bits() > 0;
416
417 vislevel = level_of_visual( dpy, visinfo );
418 if (vislevel) {
419 /* Configure this visual as a CI, single-buffered overlay */
420 return save_glx_visual( dpy, visinfo,
421 GL_FALSE, /* rgb */
422 GL_FALSE, /* alpha */
423 GL_FALSE, /* double */
424 GL_FALSE, /* stereo */
425 0, /* depth bits */
426 0, /* stencil bits */
427 0,0,0,0, /* accum bits */
428 vislevel, /* level */
429 0 /* numAux */
430 );
431 }
432 else if (is_usable_visual( visinfo )) {
433 if (_mesa_getenv("MESA_GLX_FORCE_CI")) {
434 /* Configure this visual as a COLOR INDEX visual. */
435 return save_glx_visual( dpy, visinfo,
436 GL_FALSE, /* rgb */
437 GL_FALSE, /* alpha */
438 GL_TRUE, /* double */
439 GL_FALSE, /* stereo */
440 zBits,
441 STENCIL_BITS,
442 0, 0, 0, 0, /* accum bits */
443 0, /* level */
444 0 /* numAux */
445 );
446 }
447 else {
448 /* Configure this visual as RGB, double-buffered, depth-buffered. */
449 /* This is surely wrong for some people's needs but what else */
450 /* can be done? They should use glXChooseVisual(). */
451 return save_glx_visual( dpy, visinfo,
452 GL_TRUE, /* rgb */
453 alphaFlag, /* alpha */
454 GL_TRUE, /* double */
455 GL_FALSE, /* stereo */
456 zBits,
457 STENCIL_BITS,
458 accBits, /* r */
459 accBits, /* g */
460 accBits, /* b */
461 accBits, /* a */
462 0, /* level */
463 0 /* numAux */
464 );
465 }
466 }
467 else {
468 _mesa_warning(NULL, "Mesa: error in glXCreateContext: bad visual\n");
469 return NULL;
470 }
471 }
472
473
474
475 /*
476 * Find the GLX visual associated with an XVisualInfo.
477 */
478 static XMesaVisual
479 find_glx_visual( Display *dpy, XVisualInfo *vinfo )
480 {
481 int i;
482
483 /* try to match visual id */
484 for (i=0;i<NumVisuals;i++) {
485 if (VisualTable[i]->display==dpy
486 && VisualTable[i]->visinfo->visualid == vinfo->visualid) {
487 return VisualTable[i];
488 }
489 }
490
491 /* if that fails, try to match pointers */
492 for (i=0;i<NumVisuals;i++) {
493 if (VisualTable[i]->display==dpy && VisualTable[i]->vishandle==vinfo) {
494 return VisualTable[i];
495 }
496 }
497
498 return NULL;
499 }
500
501
502
503 /**
504 * Return the transparent pixel value for a GLX visual.
505 * Input: glxvis - the glx_visual
506 * Return: a pixel value or -1 if no transparent pixel
507 */
508 static int
509 transparent_pixel( XMesaVisual glxvis )
510 {
511 Display *dpy = glxvis->display;
512 XVisualInfo *vinfo = glxvis->visinfo;
513 OverlayInfo *overlay_info;
514 int numOverlaysPerScreen, i;
515
516 overlay_info = GetOverlayInfo(dpy, vinfo->screen, &numOverlaysPerScreen);
517 if (!overlay_info) {
518 return -1;
519 }
520
521 for (i = 0; i < numOverlaysPerScreen; i++) {
522 const OverlayInfo *ov = overlay_info + i;
523 if (ov->overlay_visual == vinfo->visualid) {
524 /* found it! */
525 if (ov->transparent_type == 0) {
526 /* type 0 indicates no transparency */
527 XFree((void *) overlay_info);
528 return -1;
529 }
530 else {
531 /* ov->value is the transparent pixel */
532 XFree((void *) overlay_info);
533 return ov->value;
534 }
535 }
536 }
537
538 /* The visual ID was not found in the overlay list. */
539 XFree((void *) overlay_info);
540 return -1;
541 }
542
543
544
545 /**
546 * Try to get an X visual which matches the given arguments.
547 */
548 static XVisualInfo *
549 get_visual( Display *dpy, int scr, unsigned int depth, int xclass )
550 {
551 XVisualInfo temp, *vis;
552 long mask;
553 int n;
554 unsigned int default_depth;
555 int default_class;
556
557 mask = VisualScreenMask | VisualDepthMask | VisualClassMask;
558 temp.screen = scr;
559 temp.depth = depth;
560 temp.CLASS = xclass;
561
562 default_depth = DefaultDepth(dpy,scr);
563 default_class = DefaultVisual(dpy,scr)->CLASS;
564
565 if (depth==default_depth && xclass==default_class) {
566 /* try to get root window's visual */
567 temp.visualid = DefaultVisual(dpy,scr)->visualid;
568 mask |= VisualIDMask;
569 }
570
571 vis = XGetVisualInfo( dpy, mask, &temp, &n );
572
573 /* In case bits/pixel > 24, make sure color channels are still <=8 bits.
574 * An SGI Infinite Reality system, for example, can have 30bpp pixels:
575 * 10 bits per color channel. Mesa's limited to a max of 8 bits/channel.
576 */
577 if (vis && depth > 24 && (xclass==TrueColor || xclass==DirectColor)) {
578 if (_mesa_bitcount((GLuint) vis->red_mask ) <= 8 &&
579 _mesa_bitcount((GLuint) vis->green_mask) <= 8 &&
580 _mesa_bitcount((GLuint) vis->blue_mask ) <= 8) {
581 return vis;
582 }
583 else {
584 XFree((void *) vis);
585 return NULL;
586 }
587 }
588
589 return vis;
590 }
591
592
593
594 /*
595 * Retrieve the value of the given environment variable and find
596 * the X visual which matches it.
597 * Input: dpy - the display
598 * screen - the screen number
599 * varname - the name of the environment variable
600 * Return: an XVisualInfo pointer to NULL if error.
601 */
602 static XVisualInfo *
603 get_env_visual(Display *dpy, int scr, const char *varname)
604 {
605 char value[100], type[100];
606 int depth, xclass = -1;
607 XVisualInfo *vis;
608
609 if (!_mesa_getenv( varname )) {
610 return NULL;
611 }
612
613 _mesa_strncpy( value, _mesa_getenv(varname), 100 );
614 value[99] = 0;
615
616 sscanf( value, "%s %d", type, &depth );
617
618 if (_mesa_strcmp(type,"TrueColor")==0) xclass = TrueColor;
619 else if (_mesa_strcmp(type,"DirectColor")==0) xclass = DirectColor;
620 else if (_mesa_strcmp(type,"PseudoColor")==0) xclass = PseudoColor;
621 else if (_mesa_strcmp(type,"StaticColor")==0) xclass = StaticColor;
622 else if (_mesa_strcmp(type,"GrayScale")==0) xclass = GrayScale;
623 else if (_mesa_strcmp(type,"StaticGray")==0) xclass = StaticGray;
624
625 if (xclass>-1 && depth>0) {
626 vis = get_visual( dpy, scr, depth, xclass );
627 if (vis) {
628 return vis;
629 }
630 }
631
632 _mesa_warning(NULL, "GLX unable to find visual class=%s, depth=%d.",
633 type, depth);
634
635 return NULL;
636 }
637
638
639
640 /*
641 * Select an X visual which satisfies the RGBA/CI flag and minimum depth.
642 * Input: dpy, screen - X display and screen number
643 * rgba - GL_TRUE = RGBA mode, GL_FALSE = CI mode
644 * min_depth - minimum visual depth
645 * preferred_class - preferred GLX visual class or DONT_CARE
646 * Return: pointer to an XVisualInfo or NULL.
647 */
648 static XVisualInfo *
649 choose_x_visual( Display *dpy, int screen, GLboolean rgba, int min_depth,
650 int preferred_class )
651 {
652 XVisualInfo *vis;
653 int xclass, visclass = 0;
654 int depth;
655
656 if (rgba) {
657 Atom hp_cr_maps = XInternAtom(dpy, "_HP_RGB_SMOOTH_MAP_LIST", True);
658 /* First see if the MESA_RGB_VISUAL env var is defined */
659 vis = get_env_visual( dpy, screen, "MESA_RGB_VISUAL" );
660 if (vis) {
661 return vis;
662 }
663 /* Otherwise, search for a suitable visual */
664 if (preferred_class==DONT_CARE) {
665 for (xclass=0;xclass<6;xclass++) {
666 switch (xclass) {
667 case 0: visclass = TrueColor; break;
668 case 1: visclass = DirectColor; break;
669 case 2: visclass = PseudoColor; break;
670 case 3: visclass = StaticColor; break;
671 case 4: visclass = GrayScale; break;
672 case 5: visclass = StaticGray; break;
673 }
674 if (min_depth==0) {
675 /* start with shallowest */
676 for (depth=0;depth<=32;depth++) {
677 if (visclass==TrueColor && depth==8 && !hp_cr_maps) {
678 /* Special case: try to get 8-bit PseudoColor before */
679 /* 8-bit TrueColor */
680 vis = get_visual( dpy, screen, 8, PseudoColor );
681 if (vis) {
682 return vis;
683 }
684 }
685 vis = get_visual( dpy, screen, depth, visclass );
686 if (vis) {
687 return vis;
688 }
689 }
690 }
691 else {
692 /* start with deepest */
693 for (depth=32;depth>=min_depth;depth--) {
694 if (visclass==TrueColor && depth==8 && !hp_cr_maps) {
695 /* Special case: try to get 8-bit PseudoColor before */
696 /* 8-bit TrueColor */
697 vis = get_visual( dpy, screen, 8, PseudoColor );
698 if (vis) {
699 return vis;
700 }
701 }
702 vis = get_visual( dpy, screen, depth, visclass );
703 if (vis) {
704 return vis;
705 }
706 }
707 }
708 }
709 }
710 else {
711 /* search for a specific visual class */
712 switch (preferred_class) {
713 case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break;
714 case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break;
715 case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break;
716 case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break;
717 case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break;
718 case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break;
719 default: return NULL;
720 }
721 if (min_depth==0) {
722 /* start with shallowest */
723 for (depth=0;depth<=32;depth++) {
724 vis = get_visual( dpy, screen, depth, visclass );
725 if (vis) {
726 return vis;
727 }
728 }
729 }
730 else {
731 /* start with deepest */
732 for (depth=32;depth>=min_depth;depth--) {
733 vis = get_visual( dpy, screen, depth, visclass );
734 if (vis) {
735 return vis;
736 }
737 }
738 }
739 }
740 }
741 else {
742 /* First see if the MESA_CI_VISUAL env var is defined */
743 vis = get_env_visual( dpy, screen, "MESA_CI_VISUAL" );
744 if (vis) {
745 return vis;
746 }
747 /* Otherwise, search for a suitable visual, starting with shallowest */
748 if (preferred_class==DONT_CARE) {
749 for (xclass=0;xclass<4;xclass++) {
750 switch (xclass) {
751 case 0: visclass = PseudoColor; break;
752 case 1: visclass = StaticColor; break;
753 case 2: visclass = GrayScale; break;
754 case 3: visclass = StaticGray; break;
755 }
756 /* try 8-bit up through 16-bit */
757 for (depth=8;depth<=16;depth++) {
758 vis = get_visual( dpy, screen, depth, visclass );
759 if (vis) {
760 return vis;
761 }
762 }
763 /* try min_depth up to 8-bit */
764 for (depth=min_depth;depth<8;depth++) {
765 vis = get_visual( dpy, screen, depth, visclass );
766 if (vis) {
767 return vis;
768 }
769 }
770 }
771 }
772 else {
773 /* search for a specific visual class */
774 switch (preferred_class) {
775 case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break;
776 case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break;
777 case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break;
778 case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break;
779 case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break;
780 case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break;
781 default: return NULL;
782 }
783 /* try 8-bit up through 16-bit */
784 for (depth=8;depth<=16;depth++) {
785 vis = get_visual( dpy, screen, depth, visclass );
786 if (vis) {
787 return vis;
788 }
789 }
790 /* try min_depth up to 8-bit */
791 for (depth=min_depth;depth<8;depth++) {
792 vis = get_visual( dpy, screen, depth, visclass );
793 if (vis) {
794 return vis;
795 }
796 }
797 }
798 }
799
800 /* didn't find a visual */
801 return NULL;
802 }
803
804
805
806 /*
807 * Find the deepest X over/underlay visual of at least min_depth.
808 * Input: dpy, screen - X display and screen number
809 * level - the over/underlay level
810 * trans_type - transparent pixel type: GLX_NONE_EXT,
811 * GLX_TRANSPARENT_RGB_EXT, GLX_TRANSPARENT_INDEX_EXT,
812 * or DONT_CARE
813 * trans_value - transparent pixel value or DONT_CARE
814 * min_depth - minimum visual depth
815 * preferred_class - preferred GLX visual class or DONT_CARE
816 * Return: pointer to an XVisualInfo or NULL.
817 */
818 static XVisualInfo *
819 choose_x_overlay_visual( Display *dpy, int scr, GLboolean rgbFlag,
820 int level, int trans_type, int trans_value,
821 int min_depth, int preferred_class )
822 {
823 OverlayInfo *overlay_info;
824 int numOverlaysPerScreen;
825 int i;
826 XVisualInfo *deepvis;
827 int deepest;
828
829 /*DEBUG int tt, tv; */
830
831 switch (preferred_class) {
832 case GLX_TRUE_COLOR_EXT: preferred_class = TrueColor; break;
833 case GLX_DIRECT_COLOR_EXT: preferred_class = DirectColor; break;
834 case GLX_PSEUDO_COLOR_EXT: preferred_class = PseudoColor; break;
835 case GLX_STATIC_COLOR_EXT: preferred_class = StaticColor; break;
836 case GLX_GRAY_SCALE_EXT: preferred_class = GrayScale; break;
837 case GLX_STATIC_GRAY_EXT: preferred_class = StaticGray; break;
838 default: preferred_class = DONT_CARE;
839 }
840
841 overlay_info = GetOverlayInfo(dpy, scr, &numOverlaysPerScreen);
842 if (!overlay_info) {
843 return NULL;
844 }
845
846 /* Search for the deepest overlay which satisifies all criteria. */
847 deepest = min_depth;
848 deepvis = NULL;
849
850 for (i = 0; i < numOverlaysPerScreen; i++) {
851 const OverlayInfo *ov = overlay_info + i;
852 XVisualInfo *vislist, vistemplate;
853 int count;
854
855 if (ov->layer!=level) {
856 /* failed overlay level criteria */
857 continue;
858 }
859 if (!(trans_type==DONT_CARE
860 || (trans_type==GLX_TRANSPARENT_INDEX_EXT
861 && ov->transparent_type>0)
862 || (trans_type==GLX_NONE_EXT && ov->transparent_type==0))) {
863 /* failed transparent pixel type criteria */
864 continue;
865 }
866 if (trans_value!=DONT_CARE && trans_value!=ov->value) {
867 /* failed transparent pixel value criteria */
868 continue;
869 }
870
871 /* get XVisualInfo and check the depth */
872 vistemplate.visualid = ov->overlay_visual;
873 vistemplate.screen = scr;
874 vislist = XGetVisualInfo( dpy, VisualIDMask | VisualScreenMask,
875 &vistemplate, &count );
876
877 if (count!=1) {
878 /* something went wrong */
879 continue;
880 }
881 if (preferred_class!=DONT_CARE && preferred_class!=vislist->CLASS) {
882 /* wrong visual class */
883 continue;
884 }
885
886 /* if RGB was requested, make sure we have True/DirectColor */
887 if (rgbFlag && vislist->CLASS != TrueColor
888 && vislist->CLASS != DirectColor)
889 continue;
890
891 /* if CI was requested, make sure we have a color indexed visual */
892 if (!rgbFlag
893 && (vislist->CLASS == TrueColor || vislist->CLASS == DirectColor))
894 continue;
895
896 if (deepvis==NULL || vislist->depth > deepest) {
897 /* YES! found a satisfactory visual */
898 if (deepvis) {
899 XFree( deepvis );
900 }
901 deepest = vislist->depth;
902 deepvis = vislist;
903 /* DEBUG tt = ov->transparent_type;*/
904 /* DEBUG tv = ov->value; */
905 }
906 }
907
908 /*DEBUG
909 if (deepvis) {
910 printf("chose 0x%x: layer=%d depth=%d trans_type=%d trans_value=%d\n",
911 deepvis->visualid, level, deepvis->depth, tt, tv );
912 }
913 */
914 return deepvis;
915 }
916
917
918 /**********************************************************************/
919 /*** Begin Fake GLX API Functions ***/
920 /**********************************************************************/
921
922
923 /**
924 * Helper used by glXChooseVisual and glXChooseFBConfig.
925 * The fbConfig parameter must be GL_FALSE for the former and GL_TRUE for
926 * the later.
927 * In either case, the attribute list is terminated with the value 'None'.
928 */
929 static XMesaVisual
930 choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig )
931 {
932 const GLboolean rgbModeDefault = fbConfig;
933 const int *parselist;
934 XVisualInfo *vis;
935 int min_ci = 0;
936 int min_red=0, min_green=0, min_blue=0;
937 GLboolean rgb_flag = rgbModeDefault;
938 GLboolean alpha_flag = GL_FALSE;
939 GLboolean double_flag = GL_FALSE;
940 GLboolean stereo_flag = GL_FALSE;
941 GLint depth_size = 0;
942 GLint stencil_size = 0;
943 GLint accumRedSize = 0;
944 GLint accumGreenSize = 0;
945 GLint accumBlueSize = 0;
946 GLint accumAlphaSize = 0;
947 int level = 0;
948 int visual_type = DONT_CARE;
949 int trans_type = DONT_CARE;
950 int trans_value = DONT_CARE;
951 GLint caveat = DONT_CARE;
952 XMesaVisual xmvis = NULL;
953 int desiredVisualID = -1;
954 int numAux = 0;
955
956 parselist = list;
957
958 while (*parselist) {
959
960 switch (*parselist) {
961 case GLX_USE_GL:
962 if (fbConfig) {
963 /* invalid token */
964 return NULL;
965 }
966 else {
967 /* skip */
968 parselist++;
969 }
970 break;
971 case GLX_BUFFER_SIZE:
972 parselist++;
973 min_ci = *parselist++;
974 break;
975 case GLX_LEVEL:
976 parselist++;
977 level = *parselist++;
978 break;
979 case GLX_RGBA:
980 if (fbConfig) {
981 /* invalid token */
982 return NULL;
983 }
984 else {
985 rgb_flag = GL_TRUE;
986 parselist++;
987 }
988 break;
989 case GLX_DOUBLEBUFFER:
990 parselist++;
991 if (fbConfig) {
992 double_flag = *parselist++;
993 }
994 else {
995 double_flag = GL_TRUE;
996 }
997 break;
998 case GLX_STEREO:
999 parselist++;
1000 if (fbConfig) {
1001 stereo_flag = *parselist++;
1002 }
1003 else {
1004 stereo_flag = GL_TRUE;
1005 }
1006 return NULL; /* stereo not supported */
1007 case GLX_AUX_BUFFERS:
1008 parselist++;
1009 numAux = *parselist++;
1010 if (numAux > MAX_AUX_BUFFERS)
1011 return NULL;
1012 break;
1013 case GLX_RED_SIZE:
1014 parselist++;
1015 min_red = *parselist++;
1016 break;
1017 case GLX_GREEN_SIZE:
1018 parselist++;
1019 min_green = *parselist++;
1020 break;
1021 case GLX_BLUE_SIZE:
1022 parselist++;
1023 min_blue = *parselist++;
1024 break;
1025 case GLX_ALPHA_SIZE:
1026 parselist++;
1027 {
1028 GLint size = *parselist++;
1029 alpha_flag = size ? GL_TRUE : GL_FALSE;
1030 }
1031 break;
1032 case GLX_DEPTH_SIZE:
1033 parselist++;
1034 depth_size = *parselist++;
1035 break;
1036 case GLX_STENCIL_SIZE:
1037 parselist++;
1038 stencil_size = *parselist++;
1039 break;
1040 case GLX_ACCUM_RED_SIZE:
1041 parselist++;
1042 {
1043 GLint size = *parselist++;
1044 accumRedSize = MAX2( accumRedSize, size );
1045 }
1046 break;
1047 case GLX_ACCUM_GREEN_SIZE:
1048 parselist++;
1049 {
1050 GLint size = *parselist++;
1051 accumGreenSize = MAX2( accumGreenSize, size );
1052 }
1053 break;
1054 case GLX_ACCUM_BLUE_SIZE:
1055 parselist++;
1056 {
1057 GLint size = *parselist++;
1058 accumBlueSize = MAX2( accumBlueSize, size );
1059 }
1060 break;
1061 case GLX_ACCUM_ALPHA_SIZE:
1062 parselist++;
1063 {
1064 GLint size = *parselist++;
1065 accumAlphaSize = MAX2( accumAlphaSize, size );
1066 }
1067 break;
1068
1069 /*
1070 * GLX_EXT_visual_info extension
1071 */
1072 case GLX_X_VISUAL_TYPE_EXT:
1073 parselist++;
1074 visual_type = *parselist++;
1075 break;
1076 case GLX_TRANSPARENT_TYPE_EXT:
1077 parselist++;
1078 trans_type = *parselist++;
1079 break;
1080 case GLX_TRANSPARENT_INDEX_VALUE_EXT:
1081 parselist++;
1082 trans_value = *parselist++;
1083 break;
1084 case GLX_TRANSPARENT_RED_VALUE_EXT:
1085 case GLX_TRANSPARENT_GREEN_VALUE_EXT:
1086 case GLX_TRANSPARENT_BLUE_VALUE_EXT:
1087 case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
1088 /* ignore */
1089 parselist++;
1090 parselist++;
1091 break;
1092
1093 /*
1094 * GLX_EXT_visual_info extension
1095 */
1096 case GLX_VISUAL_CAVEAT_EXT:
1097 parselist++;
1098 caveat = *parselist++; /* ignored for now */
1099 break;
1100
1101 /*
1102 * GLX_ARB_multisample
1103 */
1104 case GLX_SAMPLE_BUFFERS_ARB:
1105 /* ms not supported */
1106 return NULL;
1107 case GLX_SAMPLES_ARB:
1108 /* ms not supported */
1109 return NULL;
1110
1111 /*
1112 * FBConfig attribs.
1113 */
1114 case GLX_RENDER_TYPE:
1115 if (!fbConfig)
1116 return NULL;
1117 parselist++;
1118 if (*parselist == GLX_RGBA_BIT) {
1119 rgb_flag = GL_TRUE;
1120 }
1121 else if (*parselist == GLX_COLOR_INDEX_BIT) {
1122 rgb_flag = GL_FALSE;
1123 }
1124 else if (*parselist == 0) {
1125 rgb_flag = GL_TRUE;
1126 }
1127 parselist++;
1128 break;
1129 case GLX_DRAWABLE_TYPE:
1130 if (!fbConfig)
1131 return NULL;
1132 parselist++;
1133 if (*parselist & ~(GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT)) {
1134 return NULL; /* bad bit */
1135 }
1136 parselist++;
1137 break;
1138 case GLX_FBCONFIG_ID:
1139 if (!fbConfig)
1140 return NULL;
1141 parselist++;
1142 desiredVisualID = *parselist++;
1143 break;
1144 case GLX_X_RENDERABLE:
1145 if (!fbConfig)
1146 return NULL;
1147 parselist += 2;
1148 /* ignore */
1149 break;
1150
1151 case None:
1152 /* end of list */
1153 break;
1154
1155 default:
1156 /* undefined attribute */
1157 _mesa_warning(NULL, "unexpected attrib 0x%x in choose_visual()",
1158 *parselist);
1159 return NULL;
1160 }
1161 }
1162
1163 (void) caveat;
1164
1165 /*
1166 * Since we're only simulating the GLX extension this function will never
1167 * find any real GL visuals. Instead, all we can do is try to find an RGB
1168 * or CI visual of appropriate depth. Other requested attributes such as
1169 * double buffering, depth buffer, etc. will be associated with the X
1170 * visual and stored in the VisualTable[].
1171 */
1172 if (desiredVisualID != -1) {
1173 /* try to get a specific visual, by visualID */
1174 XVisualInfo temp;
1175 int n;
1176 temp.visualid = desiredVisualID;
1177 temp.screen = screen;
1178 vis = XGetVisualInfo(dpy, VisualIDMask | VisualScreenMask, &temp, &n);
1179 if (vis) {
1180 /* give the visual some useful GLX attributes */
1181 double_flag = GL_TRUE;
1182 if (vis->depth > 8)
1183 rgb_flag = GL_TRUE;
1184 depth_size = default_depth_bits();
1185 stencil_size = STENCIL_BITS;
1186 /* XXX accum??? */
1187 }
1188 }
1189 else if (level==0) {
1190 /* normal color planes */
1191 if (rgb_flag) {
1192 /* Get an RGB visual */
1193 int min_rgb = min_red + min_green + min_blue;
1194 if (min_rgb>1 && min_rgb<8) {
1195 /* a special case to be sure we can get a monochrome visual */
1196 min_rgb = 1;
1197 }
1198 vis = choose_x_visual( dpy, screen, rgb_flag, min_rgb, visual_type );
1199 }
1200 else {
1201 /* Get a color index visual */
1202 vis = choose_x_visual( dpy, screen, rgb_flag, min_ci, visual_type );
1203 accumRedSize = accumGreenSize = accumBlueSize = accumAlphaSize = 0;
1204 }
1205 }
1206 else {
1207 /* over/underlay planes */
1208 if (rgb_flag) {
1209 /* rgba overlay */
1210 int min_rgb = min_red + min_green + min_blue;
1211 if (min_rgb>1 && min_rgb<8) {
1212 /* a special case to be sure we can get a monochrome visual */
1213 min_rgb = 1;
1214 }
1215 vis = choose_x_overlay_visual( dpy, screen, rgb_flag, level,
1216 trans_type, trans_value, min_rgb, visual_type );
1217 }
1218 else {
1219 /* color index overlay */
1220 vis = choose_x_overlay_visual( dpy, screen, rgb_flag, level,
1221 trans_type, trans_value, min_ci, visual_type );
1222 }
1223 }
1224
1225 if (vis) {
1226 /* Note: we're not exactly obeying the glXChooseVisual rules here.
1227 * When GLX_DEPTH_SIZE = 1 is specified we're supposed to choose the
1228 * largest depth buffer size, which is 32bits/value. Instead, we
1229 * return 16 to maintain performance with earlier versions of Mesa.
1230 */
1231 if (depth_size > 24)
1232 depth_size = 32;
1233 else if (depth_size > 16)
1234 depth_size = 24;
1235 else if (depth_size > 0) {
1236 depth_size = default_depth_bits();
1237 }
1238
1239 if (!alpha_flag) {
1240 alpha_flag = default_alpha_bits() > 0;
1241 }
1242
1243 /* we only support one size of stencil and accum buffers. */
1244 if (stencil_size > 0)
1245 stencil_size = STENCIL_BITS;
1246 if (accumRedSize > 0 || accumGreenSize > 0 || accumBlueSize > 0 ||
1247 accumAlphaSize > 0) {
1248 accumRedSize =
1249 accumGreenSize =
1250 accumBlueSize = default_accum_bits();
1251 accumAlphaSize = alpha_flag ? accumRedSize : 0;
1252 }
1253
1254 xmvis = save_glx_visual( dpy, vis, rgb_flag, alpha_flag, double_flag,
1255 stereo_flag, depth_size, stencil_size,
1256 accumRedSize, accumGreenSize,
1257 accumBlueSize, accumAlphaSize, level, numAux );
1258 }
1259
1260 return xmvis;
1261 }
1262
1263
1264 static XVisualInfo *
1265 Fake_glXChooseVisual( Display *dpy, int screen, int *list )
1266 {
1267 XMesaVisual xmvis = choose_visual(dpy, screen, list, GL_FALSE);
1268 if (xmvis) {
1269 #if 0
1270 return xmvis->vishandle;
1271 #else
1272 /* create a new vishandle - the cached one may be stale */
1273 xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo));
1274 if (xmvis->vishandle) {
1275 _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
1276 }
1277 return xmvis->vishandle;
1278 #endif
1279 }
1280 else
1281 return NULL;
1282 }
1283
1284
1285 static GLXContext
1286 Fake_glXCreateContext( Display *dpy, XVisualInfo *visinfo,
1287 GLXContext share_list, Bool direct )
1288 {
1289 XMesaVisual xmvis;
1290 struct fake_glx_context *glxCtx;
1291 struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list;
1292
1293 if (!dpy || !visinfo)
1294 return 0;
1295
1296 glxCtx = CALLOC_STRUCT(fake_glx_context);
1297 if (!glxCtx)
1298 return 0;
1299
1300 /* deallocate unused windows/buffers */
1301 XMesaGarbageCollect();
1302
1303 xmvis = find_glx_visual( dpy, visinfo );
1304 if (!xmvis) {
1305 /* This visual wasn't found with glXChooseVisual() */
1306 xmvis = create_glx_visual( dpy, visinfo );
1307 if (!xmvis) {
1308 /* unusable visual */
1309 FREE(glxCtx);
1310 return NULL;
1311 }
1312 }
1313
1314 glxCtx->xmesaContext = XMesaCreateContext(xmvis,
1315 shareCtx ? shareCtx->xmesaContext : NULL);
1316 if (!glxCtx->xmesaContext) {
1317 FREE(glxCtx);
1318 return NULL;
1319 }
1320
1321 glxCtx->xmesaContext->direct = GL_FALSE;
1322 glxCtx->glxContext.isDirect = GL_FALSE;
1323 glxCtx->glxContext.currentDpy = dpy;
1324 glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
1325
1326 assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
1327
1328 return (GLXContext) glxCtx;
1329 }
1330
1331
1332 /* XXX these may have to be removed due to thread-safety issues. */
1333 static GLXContext MakeCurrent_PrevContext = 0;
1334 static GLXDrawable MakeCurrent_PrevDrawable = 0;
1335 static GLXDrawable MakeCurrent_PrevReadable = 0;
1336 static XMesaBuffer MakeCurrent_PrevDrawBuffer = 0;
1337 static XMesaBuffer MakeCurrent_PrevReadBuffer = 0;
1338
1339
1340 /* GLX 1.3 and later */
1341 static Bool
1342 Fake_glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
1343 GLXDrawable read, GLXContext ctx )
1344 {
1345 struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
1346
1347 if (ctx && draw && read) {
1348 XMesaBuffer drawBuffer, readBuffer;
1349 XMesaContext xmctx = glxCtx->xmesaContext;
1350
1351 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'draw' */
1352 if (ctx == MakeCurrent_PrevContext
1353 && draw == MakeCurrent_PrevDrawable) {
1354 drawBuffer = MakeCurrent_PrevDrawBuffer;
1355 }
1356 else {
1357 drawBuffer = XMesaFindBuffer( dpy, draw );
1358 }
1359 if (!drawBuffer) {
1360 /* drawable must be a new window! */
1361 drawBuffer = XMesaCreateWindowBuffer2( xmctx->xm_visual, draw, xmctx);
1362 if (!drawBuffer) {
1363 /* Out of memory, or context/drawable depth mismatch */
1364 return False;
1365 }
1366 }
1367
1368 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */
1369 if (ctx == MakeCurrent_PrevContext
1370 && read == MakeCurrent_PrevReadable) {
1371 readBuffer = MakeCurrent_PrevReadBuffer;
1372 }
1373 else {
1374 readBuffer = XMesaFindBuffer( dpy, read );
1375 }
1376 if (!readBuffer) {
1377 /* drawable must be a new window! */
1378 readBuffer = XMesaCreateWindowBuffer2(glxCtx->xmesaContext->xm_visual,
1379 read, xmctx);
1380 if (!readBuffer) {
1381 /* Out of memory, or context/drawable depth mismatch */
1382 return False;
1383 }
1384 }
1385
1386 MakeCurrent_PrevContext = ctx;
1387 MakeCurrent_PrevDrawable = draw;
1388 MakeCurrent_PrevReadable = read;
1389 MakeCurrent_PrevDrawBuffer = drawBuffer;
1390 MakeCurrent_PrevReadBuffer = readBuffer;
1391
1392 /* Now make current! */
1393 if (XMesaMakeCurrent2(xmctx, drawBuffer, readBuffer)) {
1394 ((__GLXcontext *) ctx)->currentDpy = dpy;
1395 ((__GLXcontext *) ctx)->currentDrawable = draw;
1396 ((__GLXcontext *) ctx)->currentReadable = read;
1397 return True;
1398 }
1399 else {
1400 return False;
1401 }
1402 }
1403 else if (!ctx && !draw && !read) {
1404 /* release current context w/out assigning new one. */
1405 XMesaMakeCurrent( NULL, NULL );
1406 MakeCurrent_PrevContext = 0;
1407 MakeCurrent_PrevDrawable = 0;
1408 MakeCurrent_PrevReadable = 0;
1409 MakeCurrent_PrevDrawBuffer = 0;
1410 MakeCurrent_PrevReadBuffer = 0;
1411 return True;
1412 }
1413 else {
1414 /* The args must either all be non-zero or all zero.
1415 * This is an error.
1416 */
1417 return False;
1418 }
1419 }
1420
1421
1422 static Bool
1423 Fake_glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx )
1424 {
1425 return Fake_glXMakeContextCurrent( dpy, drawable, drawable, ctx );
1426 }
1427
1428
1429 static GLXPixmap
1430 Fake_glXCreateGLXPixmap( Display *dpy, XVisualInfo *visinfo, Pixmap pixmap )
1431 {
1432 XMesaVisual v;
1433 XMesaBuffer b;
1434
1435 v = find_glx_visual( dpy, visinfo );
1436 if (!v) {
1437 v = create_glx_visual( dpy, visinfo );
1438 if (!v) {
1439 /* unusable visual */
1440 return 0;
1441 }
1442 }
1443
1444 b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
1445 if (!b) {
1446 return 0;
1447 }
1448 return b->frontxrb->pixmap;
1449 }
1450
1451
1452 /*** GLX_MESA_pixmap_colormap ***/
1453
1454 static GLXPixmap
1455 Fake_glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visinfo,
1456 Pixmap pixmap, Colormap cmap )
1457 {
1458 XMesaVisual v;
1459 XMesaBuffer b;
1460
1461 v = find_glx_visual( dpy, visinfo );
1462 if (!v) {
1463 v = create_glx_visual( dpy, visinfo );
1464 if (!v) {
1465 /* unusable visual */
1466 return 0;
1467 }
1468 }
1469
1470 b = XMesaCreatePixmapBuffer( v, pixmap, cmap );
1471 if (!b) {
1472 return 0;
1473 }
1474 return b->frontxrb->pixmap;
1475 }
1476
1477
1478 static void
1479 Fake_glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap )
1480 {
1481 XMesaBuffer b = XMesaFindBuffer(dpy, pixmap);
1482 if (b) {
1483 XMesaDestroyBuffer(b);
1484 }
1485 else if (_mesa_getenv("MESA_DEBUG")) {
1486 _mesa_warning(NULL, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n");
1487 }
1488 }
1489
1490
1491 static void
1492 Fake_glXCopyContext( Display *dpy, GLXContext src, GLXContext dst,
1493 unsigned long mask )
1494 {
1495 struct fake_glx_context *fakeSrc = (struct fake_glx_context *) src;
1496 struct fake_glx_context *fakeDst = (struct fake_glx_context *) dst;
1497 XMesaContext xm_src = fakeSrc->xmesaContext;
1498 XMesaContext xm_dst = fakeDst->xmesaContext;
1499 (void) dpy;
1500 _mesa_copy_context( &(xm_src->mesa), &(xm_dst->mesa), (GLuint) mask );
1501 }
1502
1503
1504 static Bool
1505 Fake_glXQueryExtension( Display *dpy, int *errorb, int *event )
1506 {
1507 /* Mesa's GLX isn't really an X extension but we try to act like one. */
1508 (void) dpy;
1509 (void) errorb;
1510 (void) event;
1511 return True;
1512 }
1513
1514
1515 extern void _kw_ungrab_all( Display *dpy );
1516 void _kw_ungrab_all( Display *dpy )
1517 {
1518 XUngrabPointer( dpy, CurrentTime );
1519 XUngrabKeyboard( dpy, CurrentTime );
1520 }
1521
1522
1523 static void
1524 Fake_glXDestroyContext( Display *dpy, GLXContext ctx )
1525 {
1526 struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
1527 (void) dpy;
1528 MakeCurrent_PrevContext = 0;
1529 MakeCurrent_PrevDrawable = 0;
1530 MakeCurrent_PrevReadable = 0;
1531 MakeCurrent_PrevDrawBuffer = 0;
1532 MakeCurrent_PrevReadBuffer = 0;
1533 XMesaDestroyContext( glxCtx->xmesaContext );
1534 XMesaGarbageCollect();
1535 }
1536
1537
1538 static Bool
1539 Fake_glXIsDirect( Display *dpy, GLXContext ctx )
1540 {
1541 struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
1542 (void) dpy;
1543 return glxCtx->xmesaContext->direct;
1544 }
1545
1546
1547
1548 static void
1549 Fake_glXSwapBuffers( Display *dpy, GLXDrawable drawable )
1550 {
1551 XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
1552
1553 if (buffer) {
1554 XMesaSwapBuffers(buffer);
1555 }
1556 else if (_mesa_getenv("MESA_DEBUG")) {
1557 _mesa_warning(NULL, "glXSwapBuffers: invalid drawable 0x%x\n",
1558 (int) drawable);
1559 }
1560 }
1561
1562
1563
1564 /*** GLX_MESA_copy_sub_buffer ***/
1565
1566 static void
1567 Fake_glXCopySubBufferMESA( Display *dpy, GLXDrawable drawable,
1568 int x, int y, int width, int height )
1569 {
1570 XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
1571 if (buffer) {
1572 XMesaCopySubBuffer(buffer, x, y, width, height);
1573 }
1574 else if (_mesa_getenv("MESA_DEBUG")) {
1575 _mesa_warning(NULL, "Mesa: glXCopySubBufferMESA: invalid drawable\n");
1576 }
1577 }
1578
1579
1580 static Bool
1581 Fake_glXQueryVersion( Display *dpy, int *maj, int *min )
1582 {
1583 (void) dpy;
1584 /* Return GLX version, not Mesa version */
1585 assert(CLIENT_MAJOR_VERSION == SERVER_MAJOR_VERSION);
1586 *maj = CLIENT_MAJOR_VERSION;
1587 *min = MIN2( CLIENT_MINOR_VERSION, SERVER_MINOR_VERSION );
1588 return True;
1589 }
1590
1591
1592 /*
1593 * Query the GLX attributes of the given XVisualInfo.
1594 */
1595 static int
1596 get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig )
1597 {
1598 ASSERT(xmvis);
1599 switch(attrib) {
1600 case GLX_USE_GL:
1601 if (fbconfig)
1602 return GLX_BAD_ATTRIBUTE;
1603 *value = (int) True;
1604 return 0;
1605 case GLX_BUFFER_SIZE:
1606 *value = xmvis->visinfo->depth;
1607 return 0;
1608 case GLX_LEVEL:
1609 *value = xmvis->mesa_visual.level;
1610 return 0;
1611 case GLX_RGBA:
1612 if (fbconfig)
1613 return GLX_BAD_ATTRIBUTE;
1614 if (xmvis->mesa_visual.rgbMode) {
1615 *value = True;
1616 }
1617 else {
1618 *value = False;
1619 }
1620 return 0;
1621 case GLX_DOUBLEBUFFER:
1622 *value = (int) xmvis->mesa_visual.doubleBufferMode;
1623 return 0;
1624 case GLX_STEREO:
1625 *value = (int) xmvis->mesa_visual.stereoMode;
1626 return 0;
1627 case GLX_AUX_BUFFERS:
1628 *value = xmvis->mesa_visual.numAuxBuffers;
1629 return 0;
1630 case GLX_RED_SIZE:
1631 *value = xmvis->mesa_visual.redBits;
1632 return 0;
1633 case GLX_GREEN_SIZE:
1634 *value = xmvis->mesa_visual.greenBits;
1635 return 0;
1636 case GLX_BLUE_SIZE:
1637 *value = xmvis->mesa_visual.blueBits;
1638 return 0;
1639 case GLX_ALPHA_SIZE:
1640 *value = xmvis->mesa_visual.alphaBits;
1641 return 0;
1642 case GLX_DEPTH_SIZE:
1643 *value = xmvis->mesa_visual.depthBits;
1644 return 0;
1645 case GLX_STENCIL_SIZE:
1646 *value = xmvis->mesa_visual.stencilBits;
1647 return 0;
1648 case GLX_ACCUM_RED_SIZE:
1649 *value = xmvis->mesa_visual.accumRedBits;
1650 return 0;
1651 case GLX_ACCUM_GREEN_SIZE:
1652 *value = xmvis->mesa_visual.accumGreenBits;
1653 return 0;
1654 case GLX_ACCUM_BLUE_SIZE:
1655 *value = xmvis->mesa_visual.accumBlueBits;
1656 return 0;
1657 case GLX_ACCUM_ALPHA_SIZE:
1658 *value = xmvis->mesa_visual.accumAlphaBits;
1659 return 0;
1660
1661 /*
1662 * GLX_EXT_visual_info extension
1663 */
1664 case GLX_X_VISUAL_TYPE_EXT:
1665 switch (xmvis->visinfo->CLASS) {
1666 case StaticGray: *value = GLX_STATIC_GRAY_EXT; return 0;
1667 case GrayScale: *value = GLX_GRAY_SCALE_EXT; return 0;
1668 case StaticColor: *value = GLX_STATIC_GRAY_EXT; return 0;
1669 case PseudoColor: *value = GLX_PSEUDO_COLOR_EXT; return 0;
1670 case TrueColor: *value = GLX_TRUE_COLOR_EXT; return 0;
1671 case DirectColor: *value = GLX_DIRECT_COLOR_EXT; return 0;
1672 }
1673 return 0;
1674 case GLX_TRANSPARENT_TYPE_EXT:
1675 if (xmvis->mesa_visual.level==0) {
1676 /* normal planes */
1677 *value = GLX_NONE_EXT;
1678 }
1679 else if (xmvis->mesa_visual.level>0) {
1680 /* overlay */
1681 if (xmvis->mesa_visual.rgbMode) {
1682 *value = GLX_TRANSPARENT_RGB_EXT;
1683 }
1684 else {
1685 *value = GLX_TRANSPARENT_INDEX_EXT;
1686 }
1687 }
1688 else if (xmvis->mesa_visual.level<0) {
1689 /* underlay */
1690 *value = GLX_NONE_EXT;
1691 }
1692 return 0;
1693 case GLX_TRANSPARENT_INDEX_VALUE_EXT:
1694 {
1695 int pixel = transparent_pixel( xmvis );
1696 if (pixel>=0) {
1697 *value = pixel;
1698 }
1699 /* else undefined */
1700 }
1701 return 0;
1702 case GLX_TRANSPARENT_RED_VALUE_EXT:
1703 /* undefined */
1704 return 0;
1705 case GLX_TRANSPARENT_GREEN_VALUE_EXT:
1706 /* undefined */
1707 return 0;
1708 case GLX_TRANSPARENT_BLUE_VALUE_EXT:
1709 /* undefined */
1710 return 0;
1711 case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
1712 /* undefined */
1713 return 0;
1714
1715 /*
1716 * GLX_EXT_visual_info extension
1717 */
1718 case GLX_VISUAL_CAVEAT_EXT:
1719 /* test for zero, just in case */
1720 if (xmvis->mesa_visual.visualRating > 0)
1721 *value = xmvis->mesa_visual.visualRating;
1722 else
1723 *value = GLX_NONE_EXT;
1724 return 0;
1725
1726 /*
1727 * GLX_ARB_multisample
1728 */
1729 case GLX_SAMPLE_BUFFERS_ARB:
1730 *value = 0;
1731 return 0;
1732 case GLX_SAMPLES_ARB:
1733 *value = 0;
1734 return 0;
1735
1736 /*
1737 * For FBConfigs:
1738 */
1739 case GLX_SCREEN_EXT:
1740 if (!fbconfig)
1741 return GLX_BAD_ATTRIBUTE;
1742 *value = xmvis->visinfo->screen;
1743 break;
1744 case GLX_DRAWABLE_TYPE: /*SGIX too */
1745 if (!fbconfig)
1746 return GLX_BAD_ATTRIBUTE;
1747 *value = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT;
1748 break;
1749 case GLX_RENDER_TYPE_SGIX:
1750 if (!fbconfig)
1751 return GLX_BAD_ATTRIBUTE;
1752 if (xmvis->mesa_visual.rgbMode)
1753 *value = GLX_RGBA_BIT;
1754 else
1755 *value = GLX_COLOR_INDEX_BIT;
1756 break;
1757 case GLX_X_RENDERABLE_SGIX:
1758 if (!fbconfig)
1759 return GLX_BAD_ATTRIBUTE;
1760 *value = True; /* XXX really? */
1761 break;
1762 case GLX_FBCONFIG_ID_SGIX:
1763 if (!fbconfig)
1764 return GLX_BAD_ATTRIBUTE;
1765 *value = xmvis->visinfo->visualid;
1766 break;
1767 case GLX_MAX_PBUFFER_WIDTH:
1768 if (!fbconfig)
1769 return GLX_BAD_ATTRIBUTE;
1770 /* XXX or MAX_WIDTH? */
1771 *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen);
1772 break;
1773 case GLX_MAX_PBUFFER_HEIGHT:
1774 if (!fbconfig)
1775 return GLX_BAD_ATTRIBUTE;
1776 *value = DisplayHeight(xmvis->display, xmvis->visinfo->screen);
1777 break;
1778 case GLX_MAX_PBUFFER_PIXELS:
1779 if (!fbconfig)
1780 return GLX_BAD_ATTRIBUTE;
1781 *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen) *
1782 DisplayHeight(xmvis->display, xmvis->visinfo->screen);
1783 break;
1784 case GLX_VISUAL_ID:
1785 if (!fbconfig)
1786 return GLX_BAD_ATTRIBUTE;
1787 *value = xmvis->visinfo->visualid;
1788 break;
1789
1790 default:
1791 return GLX_BAD_ATTRIBUTE;
1792 }
1793 return Success;
1794 }
1795
1796
1797 static int
1798 Fake_glXGetConfig( Display *dpy, XVisualInfo *visinfo,
1799 int attrib, int *value )
1800 {
1801 XMesaVisual xmvis;
1802 int k;
1803 if (!dpy || !visinfo)
1804 return GLX_BAD_ATTRIBUTE;
1805
1806 xmvis = find_glx_visual( dpy, visinfo );
1807 if (!xmvis) {
1808 /* this visual wasn't obtained with glXChooseVisual */
1809 xmvis = create_glx_visual( dpy, visinfo );
1810 if (!xmvis) {
1811 /* this visual can't be used for GL rendering */
1812 if (attrib==GLX_USE_GL) {
1813 *value = (int) False;
1814 return 0;
1815 }
1816 else {
1817 return GLX_BAD_VISUAL;
1818 }
1819 }
1820 }
1821
1822 k = get_config(xmvis, attrib, value, GL_FALSE);
1823 return k;
1824 }
1825
1826
1827 static void
1828 Fake_glXWaitGL( void )
1829 {
1830 XMesaContext xmesa = XMesaGetCurrentContext();
1831 XMesaFlush( xmesa );
1832 }
1833
1834
1835
1836 static void
1837 Fake_glXWaitX( void )
1838 {
1839 XMesaContext xmesa = XMesaGetCurrentContext();
1840 XMesaFlush( xmesa );
1841 }
1842
1843
1844 static const char *
1845 get_extensions( void )
1846 {
1847 #ifdef FX
1848 const char *fx = _mesa_getenv("MESA_GLX_FX");
1849 if (fx && fx[0] != 'd') {
1850 return EXTENSIONS;
1851 }
1852 #endif
1853 return EXTENSIONS + 23; /* skip "GLX_MESA_set_3dfx_mode" */
1854 }
1855
1856
1857
1858 /* GLX 1.1 and later */
1859 static const char *
1860 Fake_glXQueryExtensionsString( Display *dpy, int screen )
1861 {
1862 (void) dpy;
1863 (void) screen;
1864 return get_extensions();
1865 }
1866
1867
1868
1869 /* GLX 1.1 and later */
1870 static const char *
1871 Fake_glXQueryServerString( Display *dpy, int screen, int name )
1872 {
1873 static char version[1000];
1874 _mesa_sprintf(version, "%d.%d %s",
1875 SERVER_MAJOR_VERSION, SERVER_MINOR_VERSION, MESA_GLX_VERSION);
1876
1877 (void) dpy;
1878 (void) screen;
1879
1880 switch (name) {
1881 case GLX_EXTENSIONS:
1882 return get_extensions();
1883 case GLX_VENDOR:
1884 return VENDOR;
1885 case GLX_VERSION:
1886 return version;
1887 default:
1888 return NULL;
1889 }
1890 }
1891
1892
1893
1894 /* GLX 1.1 and later */
1895 static const char *
1896 Fake_glXGetClientString( Display *dpy, int name )
1897 {
1898 static char version[1000];
1899 _mesa_sprintf(version, "%d.%d %s", CLIENT_MAJOR_VERSION,
1900 CLIENT_MINOR_VERSION, MESA_GLX_VERSION);
1901
1902 (void) dpy;
1903
1904 switch (name) {
1905 case GLX_EXTENSIONS:
1906 return get_extensions();
1907 case GLX_VENDOR:
1908 return VENDOR;
1909 case GLX_VERSION:
1910 return version;
1911 default:
1912 return NULL;
1913 }
1914 }
1915
1916
1917
1918 /*
1919 * GLX 1.3 and later
1920 */
1921
1922
1923 static int
1924 Fake_glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config,
1925 int attribute, int *value )
1926 {
1927 XMesaVisual v = (XMesaVisual) config;
1928 (void) dpy;
1929 (void) config;
1930
1931 if (!dpy || !config || !value)
1932 return -1;
1933
1934 return get_config(v, attribute, value, GL_TRUE);
1935 }
1936
1937
1938 static GLXFBConfig *
1939 Fake_glXGetFBConfigs( Display *dpy, int screen, int *nelements )
1940 {
1941 XVisualInfo *visuals, visTemplate;
1942 const long visMask = VisualScreenMask;
1943 int i;
1944
1945 /* Get list of all X visuals */
1946 visTemplate.screen = screen;
1947 visuals = XGetVisualInfo(dpy, visMask, &visTemplate, nelements);
1948 if (*nelements > 0) {
1949 XMesaVisual *results;
1950 results = (XMesaVisual *) _mesa_malloc(*nelements * sizeof(XMesaVisual));
1951 if (!results) {
1952 *nelements = 0;
1953 return NULL;
1954 }
1955 for (i = 0; i < *nelements; i++) {
1956 results[i] = create_glx_visual(dpy, visuals + i);
1957 }
1958 return (GLXFBConfig *) results;
1959 }
1960 return NULL;
1961 }
1962
1963
1964 static GLXFBConfig *
1965 Fake_glXChooseFBConfig( Display *dpy, int screen,
1966 const int *attribList, int *nitems )
1967 {
1968 XMesaVisual xmvis;
1969
1970 if (!attribList || !attribList[0]) {
1971 /* return list of all configs (per GLX_SGIX_fbconfig spec) */
1972 return Fake_glXGetFBConfigs(dpy, screen, nitems);
1973 }
1974
1975 xmvis = choose_visual(dpy, screen, attribList, GL_TRUE);
1976 if (xmvis) {
1977 GLXFBConfig *config = (GLXFBConfig *) _mesa_malloc(sizeof(XMesaVisual));
1978 if (!config) {
1979 *nitems = 0;
1980 return NULL;
1981 }
1982 *nitems = 1;
1983 config[0] = (GLXFBConfig) xmvis;
1984 return (GLXFBConfig *) config;
1985 }
1986 else {
1987 *nitems = 0;
1988 return NULL;
1989 }
1990 }
1991
1992
1993 static XVisualInfo *
1994 Fake_glXGetVisualFromFBConfig( Display *dpy, GLXFBConfig config )
1995 {
1996 if (dpy && config) {
1997 XMesaVisual xmvis = (XMesaVisual) config;
1998 #if 0
1999 return xmvis->vishandle;
2000 #else
2001 /* create a new vishandle - the cached one may be stale */
2002 xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo));
2003 if (xmvis->vishandle) {
2004 _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
2005 }
2006 return xmvis->vishandle;
2007 #endif
2008 }
2009 else {
2010 return NULL;
2011 }
2012 }
2013
2014
2015 static GLXWindow
2016 Fake_glXCreateWindow( Display *dpy, GLXFBConfig config, Window win,
2017 const int *attribList )
2018 {
2019 XMesaVisual xmvis = (XMesaVisual) config;
2020 XMesaBuffer xmbuf;
2021 if (!xmvis)
2022 return 0;
2023
2024 xmbuf = XMesaCreateWindowBuffer2(xmvis, win, NULL);
2025 if (!xmbuf)
2026 return 0;
2027
2028 (void) dpy;
2029 (void) attribList; /* Ignored in GLX 1.3 */
2030
2031 return win; /* A hack for now */
2032 }
2033
2034
2035 static void
2036 Fake_glXDestroyWindow( Display *dpy, GLXWindow window )
2037 {
2038 XMesaBuffer b = XMesaFindBuffer(dpy, (XMesaDrawable) window);
2039 if (b)
2040 XMesaDestroyBuffer(b);
2041 /* don't destroy X window */
2042 }
2043
2044
2045 /* XXX untested */
2046 static GLXPixmap
2047 Fake_glXCreatePixmap( Display *dpy, GLXFBConfig config, Pixmap pixmap,
2048 const int *attribList )
2049 {
2050 XMesaVisual v = (XMesaVisual) config;
2051 XMesaBuffer b;
2052
2053 (void) dpy;
2054 (void) config;
2055 (void) pixmap;
2056 (void) attribList; /* Ignored in GLX 1.3 */
2057
2058 if (!dpy || !config || !pixmap)
2059 return 0;
2060
2061 b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
2062 if (!b) {
2063 return 0;
2064 }
2065
2066 return pixmap;
2067 }
2068
2069
2070 static void
2071 Fake_glXDestroyPixmap( Display *dpy, GLXPixmap pixmap )
2072 {
2073 XMesaBuffer b = XMesaFindBuffer(dpy, (XMesaDrawable)pixmap);
2074 if (b)
2075 XMesaDestroyBuffer(b);
2076 /* don't destroy X pixmap */
2077 }
2078
2079
2080 static GLXPbuffer
2081 Fake_glXCreatePbuffer( Display *dpy, GLXFBConfig config,
2082 const int *attribList )
2083 {
2084 XMesaVisual xmvis = (XMesaVisual) config;
2085 XMesaBuffer xmbuf;
2086 const int *attrib;
2087 int width = 0, height = 0;
2088 GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
2089
2090 (void) dpy;
2091
2092 for (attrib = attribList; *attrib; attrib++) {
2093 switch (*attrib) {
2094 case GLX_PBUFFER_WIDTH:
2095 attrib++;
2096 width = *attrib;
2097 break;
2098 case GLX_PBUFFER_HEIGHT:
2099 attrib++;
2100 height = *attrib;
2101 break;
2102 case GLX_PRESERVED_CONTENTS:
2103 attrib++;
2104 preserveContents = *attrib; /* ignored */
2105 break;
2106 case GLX_LARGEST_PBUFFER:
2107 attrib++;
2108 useLargest = *attrib; /* ignored */
2109 break;
2110 default:
2111 return 0;
2112 }
2113 }
2114
2115 /* not used at this time */
2116 (void) useLargest;
2117 (void) preserveContents;
2118
2119 if (width == 0 || height == 0)
2120 return 0;
2121
2122 xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
2123 /* A GLXPbuffer handle must be an X Drawable because that's what
2124 * glXMakeCurrent takes.
2125 */
2126 if (xmbuf)
2127 return (GLXPbuffer) xmbuf->frontxrb->pixmap;
2128 else
2129 return 0;
2130 }
2131
2132
2133 static void
2134 Fake_glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf )
2135 {
2136 XMesaBuffer b = XMesaFindBuffer(dpy, pbuf);
2137 if (b) {
2138 XMesaDestroyBuffer(b);
2139 }
2140 }
2141
2142
2143 static void
2144 Fake_glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute,
2145 unsigned int *value )
2146 {
2147 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, draw);
2148 if (!xmbuf)
2149 return;
2150
2151 switch (attribute) {
2152 case GLX_WIDTH:
2153 *value = xmbuf->mesa_buffer.Width;
2154 break;
2155 case GLX_HEIGHT:
2156 *value = xmbuf->mesa_buffer.Height;
2157 break;
2158 case GLX_PRESERVED_CONTENTS:
2159 *value = True;
2160 break;
2161 case GLX_LARGEST_PBUFFER:
2162 *value = xmbuf->mesa_buffer.Width * xmbuf->mesa_buffer.Height;
2163 break;
2164 case GLX_FBCONFIG_ID:
2165 *value = xmbuf->xm_visual->visinfo->visualid;
2166 return;
2167 default:
2168 return; /* GLX_BAD_ATTRIBUTE? */
2169 }
2170 }
2171
2172
2173 static GLXContext
2174 Fake_glXCreateNewContext( Display *dpy, GLXFBConfig config,
2175 int renderType, GLXContext shareList, Bool direct )
2176 {
2177 struct fake_glx_context *glxCtx;
2178 struct fake_glx_context *shareCtx = (struct fake_glx_context *) shareList;
2179 XMesaVisual xmvis = (XMesaVisual) config;
2180
2181 if (!dpy || !config ||
2182 (renderType != GLX_RGBA_TYPE && renderType != GLX_COLOR_INDEX_TYPE))
2183 return 0;
2184
2185 glxCtx = CALLOC_STRUCT(fake_glx_context);
2186 if (!glxCtx)
2187 return 0;
2188
2189 /* deallocate unused windows/buffers */
2190 XMesaGarbageCollect();
2191
2192 glxCtx->xmesaContext = XMesaCreateContext(xmvis,
2193 shareCtx ? shareCtx->xmesaContext : NULL);
2194 if (!glxCtx->xmesaContext) {
2195 FREE(glxCtx);
2196 return NULL;
2197 }
2198
2199 glxCtx->xmesaContext->direct = GL_FALSE;
2200 glxCtx->glxContext.isDirect = GL_FALSE;
2201 glxCtx->glxContext.currentDpy = dpy;
2202 glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
2203
2204 assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
2205
2206 return (GLXContext) glxCtx;
2207 }
2208
2209
2210 static int
2211 Fake_glXQueryContext( Display *dpy, GLXContext ctx, int attribute, int *value )
2212 {
2213 struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
2214 XMesaContext xmctx = glxCtx->xmesaContext;
2215
2216 (void) dpy;
2217 (void) ctx;
2218
2219 switch (attribute) {
2220 case GLX_FBCONFIG_ID:
2221 *value = xmctx->xm_visual->visinfo->visualid;
2222 break;
2223 case GLX_RENDER_TYPE:
2224 if (xmctx->xm_visual->mesa_visual.rgbMode)
2225 *value = GLX_RGBA_BIT;
2226 else
2227 *value = GLX_COLOR_INDEX_BIT;
2228 break;
2229 case GLX_SCREEN:
2230 *value = 0;
2231 return Success;
2232 default:
2233 return GLX_BAD_ATTRIBUTE;
2234 }
2235 return 0;
2236 }
2237
2238
2239 static void
2240 Fake_glXSelectEvent( Display *dpy, GLXDrawable drawable, unsigned long mask )
2241 {
2242 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
2243 if (xmbuf)
2244 xmbuf->selectedEvents = mask;
2245 }
2246
2247
2248 static void
2249 Fake_glXGetSelectedEvent( Display *dpy, GLXDrawable drawable,
2250 unsigned long *mask )
2251 {
2252 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
2253 if (xmbuf)
2254 *mask = xmbuf->selectedEvents;
2255 else
2256 *mask = 0;
2257 }
2258
2259
2260
2261 /*** GLX_SGI_swap_control ***/
2262
2263 static int
2264 Fake_glXSwapIntervalSGI(int interval)
2265 {
2266 (void) interval;
2267 return 0;
2268 }
2269
2270
2271
2272 /*** GLX_SGI_video_sync ***/
2273
2274 static int
2275 Fake_glXGetVideoSyncSGI(unsigned int *count)
2276 {
2277 (void) count;
2278 return 0;
2279 }
2280
2281 static int
2282 Fake_glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
2283 {
2284 (void) divisor;
2285 (void) remainder;
2286 (void) count;
2287 return 0;
2288 }
2289
2290
2291
2292 /*** GLX_SGI_make_current_read ***/
2293
2294 static Bool
2295 Fake_glXMakeCurrentReadSGI(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx)
2296 {
2297 return Fake_glXMakeContextCurrent( dpy, draw, read, ctx );
2298 }
2299
2300 /* not used
2301 static GLXDrawable
2302 Fake_glXGetCurrentReadDrawableSGI(void)
2303 {
2304 return 0;
2305 }
2306 */
2307
2308
2309 /*** GLX_SGIX_video_source ***/
2310 #if defined(_VL_H)
2311
2312 static GLXVideoSourceSGIX
2313 Fake_glXCreateGLXVideoSourceSGIX(Display *dpy, int screen, VLServer server, VLPath path, int nodeClass, VLNode drainNode)
2314 {
2315 (void) dpy;
2316 (void) screen;
2317 (void) server;
2318 (void) path;
2319 (void) nodeClass;
2320 (void) drainNode;
2321 return 0;
2322 }
2323
2324 static void
2325 Fake_glXDestroyGLXVideoSourceSGIX(Display *dpy, GLXVideoSourceSGIX src)
2326 {
2327 (void) dpy;
2328 (void) src;
2329 }
2330
2331 #endif
2332
2333
2334 /*** GLX_EXT_import_context ***/
2335
2336 static void
2337 Fake_glXFreeContextEXT(Display *dpy, GLXContext context)
2338 {
2339 (void) dpy;
2340 (void) context;
2341 }
2342
2343 static GLXContextID
2344 Fake_glXGetContextIDEXT(const GLXContext context)
2345 {
2346 (void) context;
2347 return 0;
2348 }
2349
2350 static GLXContext
2351 Fake_glXImportContextEXT(Display *dpy, GLXContextID contextID)
2352 {
2353 (void) dpy;
2354 (void) contextID;
2355 return 0;
2356 }
2357
2358 static int
2359 Fake_glXQueryContextInfoEXT(Display *dpy, GLXContext context, int attribute, int *value)
2360 {
2361 (void) dpy;
2362 (void) context;
2363 (void) attribute;
2364 (void) value;
2365 return 0;
2366 }
2367
2368
2369
2370 /*** GLX_SGIX_fbconfig ***/
2371
2372 static int
2373 Fake_glXGetFBConfigAttribSGIX(Display *dpy, GLXFBConfigSGIX config, int attribute, int *value)
2374 {
2375 return Fake_glXGetFBConfigAttrib(dpy, config, attribute, value);
2376 }
2377
2378 static GLXFBConfigSGIX *
2379 Fake_glXChooseFBConfigSGIX(Display *dpy, int screen, int *attrib_list, int *nelements)
2380 {
2381 return (GLXFBConfig *) Fake_glXChooseFBConfig(dpy, screen, attrib_list, nelements);
2382 }
2383
2384
2385 static GLXPixmap
2386 Fake_glXCreateGLXPixmapWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, Pixmap pixmap)
2387 {
2388 XMesaVisual xmvis = (XMesaVisual) config;
2389 XMesaBuffer xmbuf = XMesaCreatePixmapBuffer(xmvis, pixmap, 0);
2390 return xmbuf->frontxrb->pixmap; /* need to return an X ID */
2391 }
2392
2393
2394 static GLXContext
2395 Fake_glXCreateContextWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, int render_type, GLXContext share_list, Bool direct)
2396 {
2397 XMesaVisual xmvis = (XMesaVisual) config;
2398 struct fake_glx_context *glxCtx;
2399 struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list;
2400
2401 glxCtx = CALLOC_STRUCT(fake_glx_context);
2402 if (!glxCtx)
2403 return 0;
2404
2405 /* deallocate unused windows/buffers */
2406 XMesaGarbageCollect();
2407
2408 glxCtx->xmesaContext = XMesaCreateContext(xmvis,
2409 shareCtx ? shareCtx->xmesaContext : NULL);
2410 if (!glxCtx->xmesaContext) {
2411 FREE(glxCtx);
2412 return NULL;
2413 }
2414
2415 glxCtx->xmesaContext->direct = GL_FALSE;
2416 glxCtx->glxContext.isDirect = GL_FALSE;
2417 glxCtx->glxContext.currentDpy = dpy;
2418 glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
2419
2420 assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
2421
2422 return (GLXContext) glxCtx;
2423 }
2424
2425
2426 static XVisualInfo *
2427 Fake_glXGetVisualFromFBConfigSGIX(Display *dpy, GLXFBConfigSGIX config)
2428 {
2429 return Fake_glXGetVisualFromFBConfig(dpy, config);
2430 }
2431
2432
2433 static GLXFBConfigSGIX
2434 Fake_glXGetFBConfigFromVisualSGIX(Display *dpy, XVisualInfo *vis)
2435 {
2436 XMesaVisual xmvis = find_glx_visual(dpy, vis);
2437 if (!xmvis) {
2438 /* This visual wasn't found with glXChooseVisual() */
2439 xmvis = create_glx_visual(dpy, vis);
2440 }
2441
2442 return (GLXFBConfigSGIX) xmvis;
2443 }
2444
2445
2446
2447 /*** GLX_SGIX_pbuffer ***/
2448
2449 static GLXPbufferSGIX
2450 Fake_glXCreateGLXPbufferSGIX(Display *dpy, GLXFBConfigSGIX config,
2451 unsigned int width, unsigned int height,
2452 int *attribList)
2453 {
2454 XMesaVisual xmvis = (XMesaVisual) config;
2455 XMesaBuffer xmbuf;
2456 const int *attrib;
2457 GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
2458
2459 (void) dpy;
2460
2461 for (attrib = attribList; attrib && *attrib; attrib++) {
2462 switch (*attrib) {
2463 case GLX_PRESERVED_CONTENTS_SGIX:
2464 attrib++;
2465 preserveContents = *attrib; /* ignored */
2466 break;
2467 case GLX_LARGEST_PBUFFER_SGIX:
2468 attrib++;
2469 useLargest = *attrib; /* ignored */
2470 break;
2471 default:
2472 return 0;
2473 }
2474 }
2475
2476 /* not used at this time */
2477 (void) useLargest;
2478 (void) preserveContents;
2479
2480 xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
2481 /* A GLXPbuffer handle must be an X Drawable because that's what
2482 * glXMakeCurrent takes.
2483 */
2484 return (GLXPbuffer) xmbuf->frontxrb->pixmap;
2485 }
2486
2487
2488 static void
2489 Fake_glXDestroyGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf)
2490 {
2491 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
2492 if (xmbuf) {
2493 XMesaDestroyBuffer(xmbuf);
2494 }
2495 }
2496
2497
2498 static int
2499 Fake_glXQueryGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf, int attribute, unsigned int *value)
2500 {
2501 const XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
2502
2503 if (!xmbuf) {
2504 /* Generate GLXBadPbufferSGIX for bad pbuffer */
2505 return 0;
2506 }
2507
2508 switch (attribute) {
2509 case GLX_PRESERVED_CONTENTS_SGIX:
2510 *value = True;
2511 break;
2512 case GLX_LARGEST_PBUFFER_SGIX:
2513 *value = xmbuf->mesa_buffer.Width * xmbuf->mesa_buffer.Height;
2514 break;
2515 case GLX_WIDTH_SGIX:
2516 *value = xmbuf->mesa_buffer.Width;
2517 break;
2518 case GLX_HEIGHT_SGIX:
2519 *value = xmbuf->mesa_buffer.Height;
2520 break;
2521 case GLX_EVENT_MASK_SGIX:
2522 *value = 0; /* XXX might be wrong */
2523 break;
2524 default:
2525 *value = 0;
2526 }
2527 return 0;
2528 }
2529
2530
2531 static void
2532 Fake_glXSelectEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long mask)
2533 {
2534 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
2535 if (xmbuf) {
2536 /* Note: we'll never generate clobber events */
2537 xmbuf->selectedEvents = mask;
2538 }
2539 }
2540
2541
2542 static void
2543 Fake_glXGetSelectedEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long *mask)
2544 {
2545 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
2546 if (xmbuf) {
2547 *mask = xmbuf->selectedEvents;
2548 }
2549 else {
2550 *mask = 0;
2551 }
2552 }
2553
2554
2555
2556 /*** GLX_SGI_cushion ***/
2557
2558 static void
2559 Fake_glXCushionSGI(Display *dpy, Window win, float cushion)
2560 {
2561 (void) dpy;
2562 (void) win;
2563 (void) cushion;
2564 }
2565
2566
2567
2568 /*** GLX_SGIX_video_resize ***/
2569
2570 static int
2571 Fake_glXBindChannelToWindowSGIX(Display *dpy, int screen, int channel , Window window)
2572 {
2573 (void) dpy;
2574 (void) screen;
2575 (void) channel;
2576 (void) window;
2577 return 0;
2578 }
2579
2580 static int
2581 Fake_glXChannelRectSGIX(Display *dpy, int screen, int channel, int x, int y, int w, int h)
2582 {
2583 (void) dpy;
2584 (void) screen;
2585 (void) channel;
2586 (void) x;
2587 (void) y;
2588 (void) w;
2589 (void) h;
2590 return 0;
2591 }
2592
2593 static int
2594 Fake_glXQueryChannelRectSGIX(Display *dpy, int screen, int channel, int *x, int *y, int *w, int *h)
2595 {
2596 (void) dpy;
2597 (void) screen;
2598 (void) channel;
2599 (void) x;
2600 (void) y;
2601 (void) w;
2602 (void) h;
2603 return 0;
2604 }
2605
2606 static int
2607 Fake_glXQueryChannelDeltasSGIX(Display *dpy, int screen, int channel, int *dx, int *dy, int *dw, int *dh)
2608 {
2609 (void) dpy;
2610 (void) screen;
2611 (void) channel;
2612 (void) dx;
2613 (void) dy;
2614 (void) dw;
2615 (void) dh;
2616 return 0;
2617 }
2618
2619 static int
2620 Fake_glXChannelRectSyncSGIX(Display *dpy, int screen, int channel, GLenum synctype)
2621 {
2622 (void) dpy;
2623 (void) screen;
2624 (void) channel;
2625 (void) synctype;
2626 return 0;
2627 }
2628
2629
2630
2631 /*** GLX_SGIX_dmbuffer **/
2632
2633 #if defined(_DM_BUFFER_H_)
2634 static Bool
2635 Fake_glXAssociateDMPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuffer, DMparams *params, DMbuffer dmbuffer)
2636 {
2637 (void) dpy;
2638 (void) pbuffer;
2639 (void) params;
2640 (void) dmbuffer;
2641 return False;
2642 }
2643 #endif
2644
2645
2646 /*** GLX_SGIX_swap_group ***/
2647
2648 static void
2649 Fake_glXJoinSwapGroupSGIX(Display *dpy, GLXDrawable drawable, GLXDrawable member)
2650 {
2651 (void) dpy;
2652 (void) drawable;
2653 (void) member;
2654 }
2655
2656
2657
2658 /*** GLX_SGIX_swap_barrier ***/
2659
2660 static void
2661 Fake_glXBindSwapBarrierSGIX(Display *dpy, GLXDrawable drawable, int barrier)
2662 {
2663 (void) dpy;
2664 (void) drawable;
2665 (void) barrier;
2666 }
2667
2668 static Bool
2669 Fake_glXQueryMaxSwapBarriersSGIX(Display *dpy, int screen, int *max)
2670 {
2671 (void) dpy;
2672 (void) screen;
2673 (void) max;
2674 return False;
2675 }
2676
2677
2678
2679 /*** GLX_SUN_get_transparent_index ***/
2680
2681 static Status
2682 Fake_glXGetTransparentIndexSUN(Display *dpy, Window overlay, Window underlay, long *pTransparent)
2683 {
2684 (void) dpy;
2685 (void) overlay;
2686 (void) underlay;
2687 (void) pTransparent;
2688 return 0;
2689 }
2690
2691
2692
2693 /*** GLX_MESA_release_buffers ***/
2694
2695 /*
2696 * Release the depth, stencil, accum buffers attached to a GLXDrawable
2697 * (a window or pixmap) prior to destroying the GLXDrawable.
2698 */
2699 static Bool
2700 Fake_glXReleaseBuffersMESA( Display *dpy, GLXDrawable d )
2701 {
2702 XMesaBuffer b = XMesaFindBuffer(dpy, d);
2703 if (b) {
2704 XMesaDestroyBuffer(b);
2705 return True;
2706 }
2707 return False;
2708 }
2709
2710
2711
2712 /*** GLX_MESA_set_3dfx_mode ***/
2713
2714 static Bool
2715 Fake_glXSet3DfxModeMESA( int mode )
2716 {
2717 return XMesaSetFXmode( mode );
2718 }
2719
2720
2721
2722 /*** GLX_NV_vertex_array range ***/
2723 static void *
2724 Fake_glXAllocateMemoryNV( GLsizei size,
2725 GLfloat readFrequency,
2726 GLfloat writeFrequency,
2727 GLfloat priority )
2728 {
2729 (void) size;
2730 (void) readFrequency;
2731 (void) writeFrequency;
2732 (void) priority;
2733 return NULL;
2734 }
2735
2736
2737 static void
2738 Fake_glXFreeMemoryNV( GLvoid *pointer )
2739 {
2740 (void) pointer;
2741 }
2742
2743
2744 /*** GLX_MESA_agp_offset ***/
2745
2746 static GLuint
2747 Fake_glXGetAGPOffsetMESA( const GLvoid *pointer )
2748 {
2749 (void) pointer;
2750 return ~0;
2751 }
2752
2753
2754 /* silence warning */
2755 extern struct _glxapi_table *_mesa_GetGLXDispatchTable(void);
2756
2757
2758 /**
2759 * Create a new GLX API dispatch table with its function pointers
2760 * initialized to point to Mesa's "fake" GLX API functions.
2761 * Note: there's a similar function (_real_GetGLXDispatchTable) that
2762 * returns a new dispatch table with all pointers initalized to point
2763 * to "real" GLX functions (which understand GLX wire protocol, etc).
2764 */
2765 struct _glxapi_table *
2766 _mesa_GetGLXDispatchTable(void)
2767 {
2768 static struct _glxapi_table glx;
2769
2770 /* be sure our dispatch table size <= libGL's table */
2771 {
2772 GLuint size = sizeof(struct _glxapi_table) / sizeof(void *);
2773 (void) size;
2774 assert(_glxapi_get_dispatch_table_size() >= size);
2775 }
2776
2777 /* initialize the whole table to no-ops */
2778 _glxapi_set_no_op_table(&glx);
2779
2780 /* now initialize the table with the functions I implement */
2781 glx.ChooseVisual = Fake_glXChooseVisual;
2782 glx.CopyContext = Fake_glXCopyContext;
2783 glx.CreateContext = Fake_glXCreateContext;
2784 glx.CreateGLXPixmap = Fake_glXCreateGLXPixmap;
2785 glx.DestroyContext = Fake_glXDestroyContext;
2786 glx.DestroyGLXPixmap = Fake_glXDestroyGLXPixmap;
2787 glx.GetConfig = Fake_glXGetConfig;
2788 /*glx.GetCurrentContext = Fake_glXGetCurrentContext;*/
2789 /*glx.GetCurrentDrawable = Fake_glXGetCurrentDrawable;*/
2790 glx.IsDirect = Fake_glXIsDirect;
2791 glx.MakeCurrent = Fake_glXMakeCurrent;
2792 glx.QueryExtension = Fake_glXQueryExtension;
2793 glx.QueryVersion = Fake_glXQueryVersion;
2794 glx.SwapBuffers = Fake_glXSwapBuffers;
2795 glx.UseXFont = Fake_glXUseXFont;
2796 glx.WaitGL = Fake_glXWaitGL;
2797 glx.WaitX = Fake_glXWaitX;
2798
2799 /*** GLX_VERSION_1_1 ***/
2800 glx.GetClientString = Fake_glXGetClientString;
2801 glx.QueryExtensionsString = Fake_glXQueryExtensionsString;
2802 glx.QueryServerString = Fake_glXQueryServerString;
2803
2804 /*** GLX_VERSION_1_2 ***/
2805 /*glx.GetCurrentDisplay = Fake_glXGetCurrentDisplay;*/
2806
2807 /*** GLX_VERSION_1_3 ***/
2808 glx.ChooseFBConfig = Fake_glXChooseFBConfig;
2809 glx.CreateNewContext = Fake_glXCreateNewContext;
2810 glx.CreatePbuffer = Fake_glXCreatePbuffer;
2811 glx.CreatePixmap = Fake_glXCreatePixmap;
2812 glx.CreateWindow = Fake_glXCreateWindow;
2813 glx.DestroyPbuffer = Fake_glXDestroyPbuffer;
2814 glx.DestroyPixmap = Fake_glXDestroyPixmap;
2815 glx.DestroyWindow = Fake_glXDestroyWindow;
2816 /*glx.GetCurrentReadDrawable = Fake_glXGetCurrentReadDrawable;*/
2817 glx.GetFBConfigAttrib = Fake_glXGetFBConfigAttrib;
2818 glx.GetFBConfigs = Fake_glXGetFBConfigs;
2819 glx.GetSelectedEvent = Fake_glXGetSelectedEvent;
2820 glx.GetVisualFromFBConfig = Fake_glXGetVisualFromFBConfig;
2821 glx.MakeContextCurrent = Fake_glXMakeContextCurrent;
2822 glx.QueryContext = Fake_glXQueryContext;
2823 glx.QueryDrawable = Fake_glXQueryDrawable;
2824 glx.SelectEvent = Fake_glXSelectEvent;
2825
2826 /*** GLX_SGI_swap_control ***/
2827 glx.SwapIntervalSGI = Fake_glXSwapIntervalSGI;
2828
2829 /*** GLX_SGI_video_sync ***/
2830 glx.GetVideoSyncSGI = Fake_glXGetVideoSyncSGI;
2831 glx.WaitVideoSyncSGI = Fake_glXWaitVideoSyncSGI;
2832
2833 /*** GLX_SGI_make_current_read ***/
2834 glx.MakeCurrentReadSGI = Fake_glXMakeCurrentReadSGI;
2835 /*glx.GetCurrentReadDrawableSGI = Fake_glXGetCurrentReadDrawableSGI;*/
2836
2837 /*** GLX_SGIX_video_source ***/
2838 #if defined(_VL_H)
2839 glx.CreateGLXVideoSourceSGIX = Fake_glXCreateGLXVideoSourceSGIX;
2840 glx.DestroyGLXVideoSourceSGIX = Fake_glXDestroyGLXVideoSourceSGIX;
2841 #endif
2842
2843 /*** GLX_EXT_import_context ***/
2844 glx.FreeContextEXT = Fake_glXFreeContextEXT;
2845 glx.GetContextIDEXT = Fake_glXGetContextIDEXT;
2846 /*glx.GetCurrentDisplayEXT = Fake_glXGetCurrentDisplayEXT;*/
2847 glx.ImportContextEXT = Fake_glXImportContextEXT;
2848 glx.QueryContextInfoEXT = Fake_glXQueryContextInfoEXT;
2849
2850 /*** GLX_SGIX_fbconfig ***/
2851 glx.GetFBConfigAttribSGIX = Fake_glXGetFBConfigAttribSGIX;
2852 glx.ChooseFBConfigSGIX = Fake_glXChooseFBConfigSGIX;
2853 glx.CreateGLXPixmapWithConfigSGIX = Fake_glXCreateGLXPixmapWithConfigSGIX;
2854 glx.CreateContextWithConfigSGIX = Fake_glXCreateContextWithConfigSGIX;
2855 glx.GetVisualFromFBConfigSGIX = Fake_glXGetVisualFromFBConfigSGIX;
2856 glx.GetFBConfigFromVisualSGIX = Fake_glXGetFBConfigFromVisualSGIX;
2857
2858 /*** GLX_SGIX_pbuffer ***/
2859 glx.CreateGLXPbufferSGIX = Fake_glXCreateGLXPbufferSGIX;
2860 glx.DestroyGLXPbufferSGIX = Fake_glXDestroyGLXPbufferSGIX;
2861 glx.QueryGLXPbufferSGIX = Fake_glXQueryGLXPbufferSGIX;
2862 glx.SelectEventSGIX = Fake_glXSelectEventSGIX;
2863 glx.GetSelectedEventSGIX = Fake_glXGetSelectedEventSGIX;
2864
2865 /*** GLX_SGI_cushion ***/
2866 glx.CushionSGI = Fake_glXCushionSGI;
2867
2868 /*** GLX_SGIX_video_resize ***/
2869 glx.BindChannelToWindowSGIX = Fake_glXBindChannelToWindowSGIX;
2870 glx.ChannelRectSGIX = Fake_glXChannelRectSGIX;
2871 glx.QueryChannelRectSGIX = Fake_glXQueryChannelRectSGIX;
2872 glx.QueryChannelDeltasSGIX = Fake_glXQueryChannelDeltasSGIX;
2873 glx.ChannelRectSyncSGIX = Fake_glXChannelRectSyncSGIX;
2874
2875 /*** GLX_SGIX_dmbuffer **/
2876 #if defined(_DM_BUFFER_H_)
2877 glx.AssociateDMPbufferSGIX = NULL;
2878 #endif
2879
2880 /*** GLX_SGIX_swap_group ***/
2881 glx.JoinSwapGroupSGIX = Fake_glXJoinSwapGroupSGIX;
2882
2883 /*** GLX_SGIX_swap_barrier ***/
2884 glx.BindSwapBarrierSGIX = Fake_glXBindSwapBarrierSGIX;
2885 glx.QueryMaxSwapBarriersSGIX = Fake_glXQueryMaxSwapBarriersSGIX;
2886
2887 /*** GLX_SUN_get_transparent_index ***/
2888 glx.GetTransparentIndexSUN = Fake_glXGetTransparentIndexSUN;
2889
2890 /*** GLX_MESA_copy_sub_buffer ***/
2891 glx.CopySubBufferMESA = Fake_glXCopySubBufferMESA;
2892
2893 /*** GLX_MESA_release_buffers ***/
2894 glx.ReleaseBuffersMESA = Fake_glXReleaseBuffersMESA;
2895
2896 /*** GLX_MESA_pixmap_colormap ***/
2897 glx.CreateGLXPixmapMESA = Fake_glXCreateGLXPixmapMESA;
2898
2899 /*** GLX_MESA_set_3dfx_mode ***/
2900 glx.Set3DfxModeMESA = Fake_glXSet3DfxModeMESA;
2901
2902 /*** GLX_NV_vertex_array_range ***/
2903 glx.AllocateMemoryNV = Fake_glXAllocateMemoryNV;
2904 glx.FreeMemoryNV = Fake_glXFreeMemoryNV;
2905
2906 /*** GLX_MESA_agp_offset ***/
2907 glx.GetAGPOffsetMESA = Fake_glXGetAGPOffsetMESA;
2908
2909 return &glx;
2910 }