2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
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:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
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.
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.
30 * Thanks to the contributors:
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).
38 * Don't be fooled, stereo isn't supported yet.
43 #include "glxheader.h"
54 #include "state_tracker/st_context.h"
55 #include "state_tracker/st_public.h"
59 #define _mesa_sprintf sprintf
62 /* This indicates the client-side GLX API and GLX encoder version. */
63 #define CLIENT_MAJOR_VERSION 1
64 #define CLIENT_MINOR_VERSION 4 /* but don't have 1.3's pbuffers, etc yet */
66 /* This indicates the server-side GLX decoder version.
67 * GLX 1.4 indicates OpenGL 1.3 support
69 #define SERVER_MAJOR_VERSION 1
70 #define SERVER_MINOR_VERSION 4
72 /* This is appended onto the glXGetClient/ServerString version strings. */
73 #define MESA_GLX_VERSION "Mesa " MESA_VERSION_STRING
75 /* Who implemented this GLX? */
76 #define VENDOR "Brian Paul"
79 "GLX_MESA_set_3dfx_mode " \
80 "GLX_MESA_copy_sub_buffer " \
81 "GLX_MESA_pixmap_colormap " \
82 "GLX_MESA_release_buffers " \
83 "GLX_ARB_get_proc_address " \
84 "GLX_EXT_texture_from_pixmap " \
85 "GLX_EXT_visual_info " \
86 "GLX_EXT_visual_rating " \
87 /*"GLX_SGI_video_sync "*/ \
88 "GLX_SGIX_fbconfig " \
92 * Our fake GLX context will contain a "real" GLX context and an XMesa context.
94 * Note that a pointer to a __GLXcontext is a pointer to a fake_glx_context,
97 * We really just need this structure in order to make the libGL functions
98 * glXGetCurrentContext(), glXGetCurrentDrawable() and glXGetCurrentDisplay()
101 struct fake_glx_context {
102 __GLXcontext glxContext; /* this MUST be first! */
103 XMesaContext xmesaContext;
108 /**********************************************************************/
109 /*** GLX Visual Code ***/
110 /**********************************************************************/
115 static XMesaVisual *VisualTable = NULL;
116 static int NumVisuals = 0;
120 * This struct and some code fragments borrowed
121 * from Mark Kilgard's GLUT library.
123 typedef struct _OverlayInfo {
124 /* Avoid 64-bit portability problems by being careful to use
125 longs due to the way XGetWindowProperty is specified. Note
126 that these parameters are passed as CARD32s over X
128 unsigned long overlay_visual;
129 long transparent_type;
136 /* Macro to handle c_class vs class field name in XVisualInfo struct */
137 #if defined(__cplusplus) || defined(c_plusplus)
138 #define CLASS c_class
146 * Test if the given XVisualInfo is usable for Mesa rendering.
149 is_usable_visual( XVisualInfo *vinfo )
151 switch (vinfo->CLASS) {
154 /* Any StaticGray/GrayScale visual works in RGB or CI mode */
158 /* Any StaticColor/PseudoColor visual of at least 4 bits */
159 if (vinfo->depth>=4) {
167 /* Any depth of TrueColor or DirectColor works in RGB mode */
170 /* This should never happen */
178 * Get an array OverlayInfo records for specified screen.
179 * \param dpy the display
180 * \param screen screen number
181 * \param numOverlays returns numver of OverlayInfo records
182 * \return pointer to OverlayInfo array, free with XFree()
185 GetOverlayInfo(Display *dpy, int screen, int *numOverlays)
187 Atom overlayVisualsAtom;
190 unsigned char *ovInfo;
191 unsigned long sizeData, bytesLeft;
195 * The SERVER_OVERLAY_VISUALS property on the root window contains
196 * a list of overlay visuals. Get that list now.
198 overlayVisualsAtom = XInternAtom(dpy,"SERVER_OVERLAY_VISUALS", True);
199 if (overlayVisualsAtom == None) {
203 status = XGetWindowProperty(dpy, RootWindow(dpy, screen),
204 overlayVisualsAtom, 0L, (long) 10000, False,
205 overlayVisualsAtom, &actualType, &actualFormat,
206 &sizeData, &bytesLeft,
209 if (status != Success || actualType != overlayVisualsAtom ||
210 actualFormat != 32 || sizeData < 4) {
211 /* something went wrong */
212 XFree((void *) ovInfo);
217 *numOverlays = sizeData / 4;
218 return (OverlayInfo *) ovInfo;
224 * Return the level (overlay, normal, underlay) of a given XVisualInfo.
225 * Input: dpy - the X display
226 * vinfo - the XVisualInfo to test
227 * Return: level of the visual:
229 * >0 = overlay planes
230 * <0 = underlay planes
233 level_of_visual( Display *dpy, XVisualInfo *vinfo )
235 OverlayInfo *overlay_info;
236 int numOverlaysPerScreen, i;
238 overlay_info = GetOverlayInfo(dpy, vinfo->screen, &numOverlaysPerScreen);
243 /* search the overlay visual list for the visual ID of interest */
244 for (i = 0; i < numOverlaysPerScreen; i++) {
245 const OverlayInfo *ov = overlay_info + i;
246 if (ov->overlay_visual == vinfo->visualid) {
247 /* found the visual */
248 if (/*ov->transparent_type==1 &&*/ ov->layer!=0) {
249 int level = ov->layer;
250 XFree((void *) overlay_info);
254 XFree((void *) overlay_info);
260 /* The visual ID was not found in the overlay list. */
261 XFree((void *) overlay_info);
269 * Given an XVisualInfo and RGB, Double, and Depth buffer flags, save the
270 * configuration in our list of GLX visuals.
273 save_glx_visual( Display *dpy, XVisualInfo *vinfo,
274 GLboolean rgbFlag, GLboolean alphaFlag, GLboolean dbFlag,
275 GLboolean stereoFlag,
276 GLint depth_size, GLint stencil_size,
277 GLint accumRedSize, GLint accumGreenSize,
278 GLint accumBlueSize, GLint accumAlphaSize,
279 GLint level, GLint numAuxBuffers )
281 GLboolean ximageFlag = GL_TRUE;
284 GLboolean comparePointers;
287 /* Check if the MESA_BACK_BUFFER env var is set */
288 char *backbuffer = _mesa_getenv("MESA_BACK_BUFFER");
290 if (backbuffer[0]=='p' || backbuffer[0]=='P') {
291 ximageFlag = GL_FALSE;
293 else if (backbuffer[0]=='x' || backbuffer[0]=='X') {
294 ximageFlag = GL_TRUE;
297 _mesa_warning(NULL, "Mesa: invalid value for MESA_BACK_BUFFER environment variable, using an XImage.");
303 /* stereo not supported */
307 /* Comparing IDs uses less memory but sometimes fails. */
308 /* XXX revisit this after 3.0 is finished. */
309 if (_mesa_getenv("MESA_GLX_VISUAL_HACK"))
310 comparePointers = GL_TRUE;
312 comparePointers = GL_FALSE;
314 /* Force the visual to have an alpha channel */
315 if (rgbFlag && _mesa_getenv("MESA_GLX_FORCE_ALPHA"))
318 /* First check if a matching visual is already in the list */
319 for (i=0; i<NumVisuals; i++) {
320 XMesaVisual v = VisualTable[i];
321 if (v->display == dpy
322 && v->mesa_visual.level == level
323 && v->mesa_visual.numAuxBuffers == numAuxBuffers
324 && v->ximage_flag == ximageFlag
325 && v->mesa_visual.rgbMode == rgbFlag
326 && v->mesa_visual.doubleBufferMode == dbFlag
327 && v->mesa_visual.stereoMode == stereoFlag
328 && (v->mesa_visual.alphaBits > 0) == alphaFlag
329 && (v->mesa_visual.depthBits >= depth_size || depth_size == 0)
330 && (v->mesa_visual.stencilBits >= stencil_size || stencil_size == 0)
331 && (v->mesa_visual.accumRedBits >= accumRedSize || accumRedSize == 0)
332 && (v->mesa_visual.accumGreenBits >= accumGreenSize || accumGreenSize == 0)
333 && (v->mesa_visual.accumBlueBits >= accumBlueSize || accumBlueSize == 0)
334 && (v->mesa_visual.accumAlphaBits >= accumAlphaSize || accumAlphaSize == 0)) {
335 /* now either compare XVisualInfo pointers or visual IDs */
336 if ((!comparePointers && v->visinfo->visualid == vinfo->visualid)
337 || (comparePointers && v->vishandle == vinfo)) {
343 /* Create a new visual and add it to the list. */
345 xmvis = XMesaCreateVisual( dpy, vinfo, rgbFlag, alphaFlag, dbFlag,
346 stereoFlag, ximageFlag,
347 depth_size, stencil_size,
348 accumRedSize, accumBlueSize,
349 accumBlueSize, accumAlphaSize, 0, level,
352 /* Save a copy of the pointer now so we can find this visual again
353 * if we need to search for it in find_glx_visual().
355 xmvis->vishandle = vinfo;
356 /* Allocate more space for additional visual */
357 VisualTable = (XMesaVisual *) _mesa_realloc( VisualTable,
358 sizeof(XMesaVisual) * NumVisuals,
359 sizeof(XMesaVisual) * (NumVisuals + 1));
360 /* add xmvis to the list */
361 VisualTable[NumVisuals] = xmvis;
363 /* XXX minor hack, because XMesaCreateVisual doesn't support an
364 * aux buffers parameter.
366 xmvis->mesa_visual.numAuxBuffers = numAuxBuffers;
373 * Return the default number of bits for the Z buffer.
374 * If defined, use the MESA_GLX_DEPTH_BITS env var value.
375 * Otherwise, use the DEFAULT_SOFTWARE_DEPTH_BITS constant.
376 * XXX probably do the same thing for stencil, accum, etc.
379 default_depth_bits(void)
382 const char *zEnv = _mesa_getenv("MESA_GLX_DEPTH_BITS");
384 zBits = _mesa_atoi(zEnv);
386 zBits = DEFAULT_SOFTWARE_DEPTH_BITS;
391 default_alpha_bits(void)
394 const char *aEnv = _mesa_getenv("MESA_GLX_ALPHA_BITS");
396 aBits = _mesa_atoi(aEnv);
403 default_accum_bits(void)
411 * Create a GLX visual from a regular XVisualInfo.
412 * This is called when Fake GLX is given an XVisualInfo which wasn't
413 * returned by glXChooseVisual. Since this is the first time we're
414 * considering this visual we'll take a guess at reasonable values
415 * for depth buffer size, stencil size, accum size, etc.
416 * This is the best we can do with a client-side emulation of GLX.
419 create_glx_visual( Display *dpy, XVisualInfo *visinfo )
422 GLint zBits = 24; /*default_depth_bits();*/
423 GLint accBits = default_accum_bits();
424 GLboolean alphaFlag = default_alpha_bits() > 0;
426 vislevel = level_of_visual( dpy, visinfo );
428 /* Configure this visual as a CI, single-buffered overlay */
429 return save_glx_visual( dpy, visinfo,
431 GL_FALSE, /* alpha */
432 GL_FALSE, /* double */
433 GL_FALSE, /* stereo */
435 0, /* stencil bits */
436 0,0,0,0, /* accum bits */
437 vislevel, /* level */
441 else if (is_usable_visual( visinfo )) {
442 if (_mesa_getenv("MESA_GLX_FORCE_CI")) {
443 /* Configure this visual as a COLOR INDEX visual. */
444 return save_glx_visual( dpy, visinfo,
446 GL_FALSE, /* alpha */
447 GL_TRUE, /* double */
448 GL_FALSE, /* stereo */
451 0, 0, 0, 0, /* accum bits */
457 /* Configure this visual as RGB, double-buffered, depth-buffered. */
458 /* This is surely wrong for some people's needs but what else */
459 /* can be done? They should use glXChooseVisual(). */
460 return save_glx_visual( dpy, visinfo,
462 alphaFlag, /* alpha */
463 GL_TRUE, /* double */
464 GL_FALSE, /* stereo */
477 _mesa_warning(NULL, "Mesa: error in glXCreateContext: bad visual\n");
485 * Find the GLX visual associated with an XVisualInfo.
488 find_glx_visual( Display *dpy, XVisualInfo *vinfo )
492 /* try to match visual id */
493 for (i=0;i<NumVisuals;i++) {
494 if (VisualTable[i]->display==dpy
495 && VisualTable[i]->visinfo->visualid == vinfo->visualid) {
496 return VisualTable[i];
500 /* if that fails, try to match pointers */
501 for (i=0;i<NumVisuals;i++) {
502 if (VisualTable[i]->display==dpy && VisualTable[i]->vishandle==vinfo) {
503 return VisualTable[i];
513 * Return the transparent pixel value for a GLX visual.
514 * Input: glxvis - the glx_visual
515 * Return: a pixel value or -1 if no transparent pixel
518 transparent_pixel( XMesaVisual glxvis )
520 Display *dpy = glxvis->display;
521 XVisualInfo *vinfo = glxvis->visinfo;
522 OverlayInfo *overlay_info;
523 int numOverlaysPerScreen, i;
525 overlay_info = GetOverlayInfo(dpy, vinfo->screen, &numOverlaysPerScreen);
530 for (i = 0; i < numOverlaysPerScreen; i++) {
531 const OverlayInfo *ov = overlay_info + i;
532 if (ov->overlay_visual == vinfo->visualid) {
534 if (ov->transparent_type == 0) {
535 /* type 0 indicates no transparency */
536 XFree((void *) overlay_info);
540 /* ov->value is the transparent pixel */
541 XFree((void *) overlay_info);
547 /* The visual ID was not found in the overlay list. */
548 XFree((void *) overlay_info);
555 * Try to get an X visual which matches the given arguments.
558 get_visual( Display *dpy, int scr, unsigned int depth, int xclass )
560 XVisualInfo temp, *vis;
563 unsigned int default_depth;
566 mask = VisualScreenMask | VisualDepthMask | VisualClassMask;
571 default_depth = DefaultDepth(dpy,scr);
572 default_class = DefaultVisual(dpy,scr)->CLASS;
574 if (depth==default_depth && xclass==default_class) {
575 /* try to get root window's visual */
576 temp.visualid = DefaultVisual(dpy,scr)->visualid;
577 mask |= VisualIDMask;
580 vis = XGetVisualInfo( dpy, mask, &temp, &n );
582 /* In case bits/pixel > 24, make sure color channels are still <=8 bits.
583 * An SGI Infinite Reality system, for example, can have 30bpp pixels:
584 * 10 bits per color channel. Mesa's limited to a max of 8 bits/channel.
586 if (vis && depth > 24 && (xclass==TrueColor || xclass==DirectColor)) {
587 if (_mesa_bitcount((GLuint) vis->red_mask ) <= 8 &&
588 _mesa_bitcount((GLuint) vis->green_mask) <= 8 &&
589 _mesa_bitcount((GLuint) vis->blue_mask ) <= 8) {
604 * Retrieve the value of the given environment variable and find
605 * the X visual which matches it.
606 * Input: dpy - the display
607 * screen - the screen number
608 * varname - the name of the environment variable
609 * Return: an XVisualInfo pointer to NULL if error.
612 get_env_visual(Display *dpy, int scr, const char *varname)
614 char value[100], type[100];
615 int depth, xclass = -1;
618 if (!_mesa_getenv( varname )) {
622 _mesa_strncpy( value, _mesa_getenv(varname), 100 );
625 sscanf( value, "%s %d", type, &depth );
627 if (_mesa_strcmp(type,"TrueColor")==0) xclass = TrueColor;
628 else if (_mesa_strcmp(type,"DirectColor")==0) xclass = DirectColor;
629 else if (_mesa_strcmp(type,"PseudoColor")==0) xclass = PseudoColor;
630 else if (_mesa_strcmp(type,"StaticColor")==0) xclass = StaticColor;
631 else if (_mesa_strcmp(type,"GrayScale")==0) xclass = GrayScale;
632 else if (_mesa_strcmp(type,"StaticGray")==0) xclass = StaticGray;
634 if (xclass>-1 && depth>0) {
635 vis = get_visual( dpy, scr, depth, xclass );
641 _mesa_warning(NULL, "GLX unable to find visual class=%s, depth=%d.",
650 * Select an X visual which satisfies the RGBA/CI flag and minimum depth.
651 * Input: dpy, screen - X display and screen number
652 * rgba - GL_TRUE = RGBA mode, GL_FALSE = CI mode
653 * min_depth - minimum visual depth
654 * preferred_class - preferred GLX visual class or DONT_CARE
655 * Return: pointer to an XVisualInfo or NULL.
658 choose_x_visual( Display *dpy, int screen, GLboolean rgba, int min_depth,
659 int preferred_class )
662 int xclass, visclass = 0;
666 Atom hp_cr_maps = XInternAtom(dpy, "_HP_RGB_SMOOTH_MAP_LIST", True);
667 /* First see if the MESA_RGB_VISUAL env var is defined */
668 vis = get_env_visual( dpy, screen, "MESA_RGB_VISUAL" );
672 /* Otherwise, search for a suitable visual */
673 if (preferred_class==DONT_CARE) {
674 for (xclass=0;xclass<6;xclass++) {
676 case 0: visclass = TrueColor; break;
677 case 1: visclass = DirectColor; break;
678 case 2: visclass = PseudoColor; break;
679 case 3: visclass = StaticColor; break;
680 case 4: visclass = GrayScale; break;
681 case 5: visclass = StaticGray; break;
684 /* start with shallowest */
685 for (depth=0;depth<=32;depth++) {
686 if (visclass==TrueColor && depth==8 && !hp_cr_maps) {
687 /* Special case: try to get 8-bit PseudoColor before */
688 /* 8-bit TrueColor */
689 vis = get_visual( dpy, screen, 8, PseudoColor );
694 vis = get_visual( dpy, screen, depth, visclass );
701 /* start with deepest */
702 for (depth=32;depth>=min_depth;depth--) {
703 if (visclass==TrueColor && depth==8 && !hp_cr_maps) {
704 /* Special case: try to get 8-bit PseudoColor before */
705 /* 8-bit TrueColor */
706 vis = get_visual( dpy, screen, 8, PseudoColor );
711 vis = get_visual( dpy, screen, depth, visclass );
720 /* search for a specific visual class */
721 switch (preferred_class) {
722 case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break;
723 case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break;
724 case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break;
725 case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break;
726 case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break;
727 case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break;
728 default: return NULL;
731 /* start with shallowest */
732 for (depth=0;depth<=32;depth++) {
733 vis = get_visual( dpy, screen, depth, visclass );
740 /* start with deepest */
741 for (depth=32;depth>=min_depth;depth--) {
742 vis = get_visual( dpy, screen, depth, visclass );
751 /* First see if the MESA_CI_VISUAL env var is defined */
752 vis = get_env_visual( dpy, screen, "MESA_CI_VISUAL" );
756 /* Otherwise, search for a suitable visual, starting with shallowest */
757 if (preferred_class==DONT_CARE) {
758 for (xclass=0;xclass<4;xclass++) {
760 case 0: visclass = PseudoColor; break;
761 case 1: visclass = StaticColor; break;
762 case 2: visclass = GrayScale; break;
763 case 3: visclass = StaticGray; break;
765 /* try 8-bit up through 16-bit */
766 for (depth=8;depth<=16;depth++) {
767 vis = get_visual( dpy, screen, depth, visclass );
772 /* try min_depth up to 8-bit */
773 for (depth=min_depth;depth<8;depth++) {
774 vis = get_visual( dpy, screen, depth, visclass );
782 /* search for a specific visual class */
783 switch (preferred_class) {
784 case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break;
785 case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break;
786 case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break;
787 case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break;
788 case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break;
789 case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break;
790 default: return NULL;
792 /* try 8-bit up through 16-bit */
793 for (depth=8;depth<=16;depth++) {
794 vis = get_visual( dpy, screen, depth, visclass );
799 /* try min_depth up to 8-bit */
800 for (depth=min_depth;depth<8;depth++) {
801 vis = get_visual( dpy, screen, depth, visclass );
809 /* didn't find a visual */
816 * Find the deepest X over/underlay visual of at least min_depth.
817 * Input: dpy, screen - X display and screen number
818 * level - the over/underlay level
819 * trans_type - transparent pixel type: GLX_NONE_EXT,
820 * GLX_TRANSPARENT_RGB_EXT, GLX_TRANSPARENT_INDEX_EXT,
822 * trans_value - transparent pixel value or DONT_CARE
823 * min_depth - minimum visual depth
824 * preferred_class - preferred GLX visual class or DONT_CARE
825 * Return: pointer to an XVisualInfo or NULL.
828 choose_x_overlay_visual( Display *dpy, int scr, GLboolean rgbFlag,
829 int level, int trans_type, int trans_value,
830 int min_depth, int preferred_class )
832 OverlayInfo *overlay_info;
833 int numOverlaysPerScreen;
835 XVisualInfo *deepvis;
838 /*DEBUG int tt, tv; */
840 switch (preferred_class) {
841 case GLX_TRUE_COLOR_EXT: preferred_class = TrueColor; break;
842 case GLX_DIRECT_COLOR_EXT: preferred_class = DirectColor; break;
843 case GLX_PSEUDO_COLOR_EXT: preferred_class = PseudoColor; break;
844 case GLX_STATIC_COLOR_EXT: preferred_class = StaticColor; break;
845 case GLX_GRAY_SCALE_EXT: preferred_class = GrayScale; break;
846 case GLX_STATIC_GRAY_EXT: preferred_class = StaticGray; break;
847 default: preferred_class = DONT_CARE;
850 overlay_info = GetOverlayInfo(dpy, scr, &numOverlaysPerScreen);
855 /* Search for the deepest overlay which satisifies all criteria. */
859 for (i = 0; i < numOverlaysPerScreen; i++) {
860 const OverlayInfo *ov = overlay_info + i;
861 XVisualInfo *vislist, vistemplate;
864 if (ov->layer!=level) {
865 /* failed overlay level criteria */
868 if (!(trans_type==DONT_CARE
869 || (trans_type==GLX_TRANSPARENT_INDEX_EXT
870 && ov->transparent_type>0)
871 || (trans_type==GLX_NONE_EXT && ov->transparent_type==0))) {
872 /* failed transparent pixel type criteria */
875 if (trans_value!=DONT_CARE && trans_value!=ov->value) {
876 /* failed transparent pixel value criteria */
880 /* get XVisualInfo and check the depth */
881 vistemplate.visualid = ov->overlay_visual;
882 vistemplate.screen = scr;
883 vislist = XGetVisualInfo( dpy, VisualIDMask | VisualScreenMask,
884 &vistemplate, &count );
887 /* something went wrong */
890 if (preferred_class!=DONT_CARE && preferred_class!=vislist->CLASS) {
891 /* wrong visual class */
895 /* if RGB was requested, make sure we have True/DirectColor */
896 if (rgbFlag && vislist->CLASS != TrueColor
897 && vislist->CLASS != DirectColor)
900 /* if CI was requested, make sure we have a color indexed visual */
902 && (vislist->CLASS == TrueColor || vislist->CLASS == DirectColor))
905 if (deepvis==NULL || vislist->depth > deepest) {
906 /* YES! found a satisfactory visual */
910 deepest = vislist->depth;
912 /* DEBUG tt = ov->transparent_type;*/
913 /* DEBUG tv = ov->value; */
919 printf("chose 0x%x: layer=%d depth=%d trans_type=%d trans_value=%d\n",
920 deepvis->visualid, level, deepvis->depth, tt, tv );
927 /**********************************************************************/
928 /*** Display-related functions ***/
929 /**********************************************************************/
933 * Free all XMesaVisuals which are associated with the given display.
936 destroy_visuals_on_display(Display *dpy)
939 for (i = 0; i < NumVisuals; i++) {
940 if (VisualTable[i]->display == dpy) {
941 /* remove this visual */
943 free(VisualTable[i]);
944 for (j = i; j < NumVisuals - 1; j++)
945 VisualTable[j] = VisualTable[j + 1];
953 * Called from XCloseDisplay() to let us free our display-related data.
956 close_display_callback(Display *dpy, XExtCodes *codes)
958 destroy_visuals_on_display(dpy);
959 xmesa_destroy_buffers_on_display(dpy);
965 * Look for the named extension on given display and return a pointer
966 * to the _XExtension data, or NULL if extension not found.
969 lookup_extension(Display *dpy, const char *extName)
972 for (ext = dpy->ext_procs; ext; ext = ext->next) {
973 if (ext->name && strcmp(ext->name, extName) == 0) {
982 * Whenever we're given a new Display pointer, call this function to
983 * register our close_display_callback function.
986 register_with_display(Display *dpy)
988 const char *extName = "MesaGLX";
991 ext = lookup_extension(dpy, extName);
993 XExtCodes *c = XAddExtension(dpy);
994 ext = dpy->ext_procs; /* new extension is at head of list */
995 assert(c->extension == ext->codes.extension);
996 ext->name = _mesa_strdup(extName);
997 ext->close_display = close_display_callback;
1002 /**********************************************************************/
1003 /*** Begin Fake GLX API Functions ***/
1004 /**********************************************************************/
1008 * Helper used by glXChooseVisual and glXChooseFBConfig.
1009 * The fbConfig parameter must be GL_FALSE for the former and GL_TRUE for
1011 * In either case, the attribute list is terminated with the value 'None'.
1014 choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig )
1016 const GLboolean rgbModeDefault = fbConfig;
1017 const int *parselist;
1020 int min_red=0, min_green=0, min_blue=0;
1021 GLboolean rgb_flag = rgbModeDefault;
1022 GLboolean alpha_flag = GL_FALSE;
1023 GLboolean double_flag = GL_FALSE;
1024 GLboolean stereo_flag = GL_FALSE;
1025 GLint depth_size = 0;
1026 GLint stencil_size = 0;
1027 GLint accumRedSize = 0;
1028 GLint accumGreenSize = 0;
1029 GLint accumBlueSize = 0;
1030 GLint accumAlphaSize = 0;
1032 int visual_type = DONT_CARE;
1033 int trans_type = DONT_CARE;
1034 int trans_value = DONT_CARE;
1035 GLint caveat = DONT_CARE;
1036 XMesaVisual xmvis = NULL;
1037 int desiredVisualID = -1;
1042 while (*parselist) {
1044 switch (*parselist) {
1055 case GLX_BUFFER_SIZE:
1057 min_ci = *parselist++;
1061 level = *parselist++;
1073 case GLX_DOUBLEBUFFER:
1076 double_flag = *parselist++;
1079 double_flag = GL_TRUE;
1085 stereo_flag = *parselist++;
1088 stereo_flag = GL_TRUE;
1091 case GLX_AUX_BUFFERS:
1093 numAux = *parselist++;
1094 if (numAux > MAX_AUX_BUFFERS)
1099 min_red = *parselist++;
1101 case GLX_GREEN_SIZE:
1103 min_green = *parselist++;
1107 min_blue = *parselist++;
1109 case GLX_ALPHA_SIZE:
1112 GLint size = *parselist++;
1113 alpha_flag = size ? GL_TRUE : GL_FALSE;
1116 case GLX_DEPTH_SIZE:
1118 depth_size = *parselist++;
1120 case GLX_STENCIL_SIZE:
1122 stencil_size = *parselist++;
1124 case GLX_ACCUM_RED_SIZE:
1127 GLint size = *parselist++;
1128 accumRedSize = MAX2( accumRedSize, size );
1131 case GLX_ACCUM_GREEN_SIZE:
1134 GLint size = *parselist++;
1135 accumGreenSize = MAX2( accumGreenSize, size );
1138 case GLX_ACCUM_BLUE_SIZE:
1141 GLint size = *parselist++;
1142 accumBlueSize = MAX2( accumBlueSize, size );
1145 case GLX_ACCUM_ALPHA_SIZE:
1148 GLint size = *parselist++;
1149 accumAlphaSize = MAX2( accumAlphaSize, size );
1154 * GLX_EXT_visual_info extension
1156 case GLX_X_VISUAL_TYPE_EXT:
1158 visual_type = *parselist++;
1160 case GLX_TRANSPARENT_TYPE_EXT:
1162 trans_type = *parselist++;
1164 case GLX_TRANSPARENT_INDEX_VALUE_EXT:
1166 trans_value = *parselist++;
1168 case GLX_TRANSPARENT_RED_VALUE_EXT:
1169 case GLX_TRANSPARENT_GREEN_VALUE_EXT:
1170 case GLX_TRANSPARENT_BLUE_VALUE_EXT:
1171 case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
1178 * GLX_EXT_visual_info extension
1180 case GLX_VISUAL_CAVEAT_EXT:
1182 caveat = *parselist++; /* ignored for now */
1186 * GLX_ARB_multisample
1188 case GLX_SAMPLE_BUFFERS_ARB:
1189 /* ms not supported */
1191 case GLX_SAMPLES_ARB:
1192 /* ms not supported */
1198 case GLX_RENDER_TYPE:
1202 if (*parselist == GLX_RGBA_BIT) {
1205 else if (*parselist == GLX_COLOR_INDEX_BIT) {
1206 rgb_flag = GL_FALSE;
1208 else if (*parselist == 0) {
1213 case GLX_DRAWABLE_TYPE:
1217 if (*parselist & ~(GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT)) {
1218 return NULL; /* bad bit */
1222 case GLX_FBCONFIG_ID:
1226 desiredVisualID = *parselist++;
1228 case GLX_X_RENDERABLE:
1235 #ifdef GLX_EXT_texture_from_pixmap
1236 case GLX_BIND_TO_TEXTURE_RGB_EXT:
1237 parselist++; /*skip*/
1239 case GLX_BIND_TO_TEXTURE_RGBA_EXT:
1240 parselist++; /*skip*/
1242 case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
1243 parselist++; /*skip*/
1245 case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
1247 if (*parselist & ~(GLX_TEXTURE_1D_BIT_EXT |
1248 GLX_TEXTURE_2D_BIT_EXT |
1249 GLX_TEXTURE_RECTANGLE_BIT_EXT)) {
1254 case GLX_Y_INVERTED_EXT:
1255 parselist++; /*skip*/
1264 /* undefined attribute */
1265 _mesa_warning(NULL, "unexpected attrib 0x%x in choose_visual()",
1274 * Since we're only simulating the GLX extension this function will never
1275 * find any real GL visuals. Instead, all we can do is try to find an RGB
1276 * or CI visual of appropriate depth. Other requested attributes such as
1277 * double buffering, depth buffer, etc. will be associated with the X
1278 * visual and stored in the VisualTable[].
1280 if (desiredVisualID != -1) {
1281 /* try to get a specific visual, by visualID */
1284 temp.visualid = desiredVisualID;
1285 temp.screen = screen;
1286 vis = XGetVisualInfo(dpy, VisualIDMask | VisualScreenMask, &temp, &n);
1288 /* give the visual some useful GLX attributes */
1289 double_flag = GL_TRUE;
1292 depth_size = 24; /*default_depth_bits();*/
1293 stencil_size = STENCIL_BITS;
1297 else if (level==0) {
1298 /* normal color planes */
1300 /* Get an RGB visual */
1301 int min_rgb = min_red + min_green + min_blue;
1302 if (min_rgb>1 && min_rgb<8) {
1303 /* a special case to be sure we can get a monochrome visual */
1306 vis = choose_x_visual( dpy, screen, rgb_flag, min_rgb, visual_type );
1309 /* Get a color index visual */
1310 vis = choose_x_visual( dpy, screen, rgb_flag, min_ci, visual_type );
1311 accumRedSize = accumGreenSize = accumBlueSize = accumAlphaSize = 0;
1315 /* over/underlay planes */
1318 int min_rgb = min_red + min_green + min_blue;
1319 if (min_rgb>1 && min_rgb<8) {
1320 /* a special case to be sure we can get a monochrome visual */
1323 vis = choose_x_overlay_visual( dpy, screen, rgb_flag, level,
1324 trans_type, trans_value, min_rgb, visual_type );
1327 /* color index overlay */
1328 vis = choose_x_overlay_visual( dpy, screen, rgb_flag, level,
1329 trans_type, trans_value, min_ci, visual_type );
1334 /* Note: we're not exactly obeying the glXChooseVisual rules here.
1335 * When GLX_DEPTH_SIZE = 1 is specified we're supposed to choose the
1336 * largest depth buffer size, which is 32bits/value. Instead, we
1337 * return 16 to maintain performance with earlier versions of Mesa.
1339 if (stencil_size > 0)
1340 depth_size = 24; /* if Z and stencil, always use 24+8 format */
1341 else if (depth_size > 24)
1343 else if (depth_size > 16)
1345 else if (depth_size > 0) {
1346 depth_size = default_depth_bits();
1350 alpha_flag = default_alpha_bits() > 0;
1353 /* we only support one size of stencil and accum buffers. */
1354 if (stencil_size > 0)
1355 stencil_size = STENCIL_BITS;
1356 if (accumRedSize > 0 || accumGreenSize > 0 || accumBlueSize > 0 ||
1357 accumAlphaSize > 0) {
1360 accumBlueSize = default_accum_bits();
1361 accumAlphaSize = alpha_flag ? accumRedSize : 0;
1364 xmvis = save_glx_visual( dpy, vis, rgb_flag, alpha_flag, double_flag,
1365 stereo_flag, depth_size, stencil_size,
1366 accumRedSize, accumGreenSize,
1367 accumBlueSize, accumAlphaSize, level, numAux );
1374 static XVisualInfo *
1375 Fake_glXChooseVisual( Display *dpy, int screen, int *list )
1379 /* register ourselves as an extension on this display */
1380 register_with_display(dpy);
1382 xmvis = choose_visual(dpy, screen, list, GL_FALSE);
1385 return xmvis->vishandle;
1387 /* create a new vishandle - the cached one may be stale */
1388 xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo));
1389 if (xmvis->vishandle) {
1390 _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
1392 return xmvis->vishandle;
1401 Fake_glXCreateContext( Display *dpy, XVisualInfo *visinfo,
1402 GLXContext share_list, Bool direct )
1405 struct fake_glx_context *glxCtx;
1406 struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list;
1408 if (!dpy || !visinfo)
1411 glxCtx = CALLOC_STRUCT(fake_glx_context);
1415 /* deallocate unused windows/buffers */
1417 XMesaGarbageCollect();
1420 xmvis = find_glx_visual( dpy, visinfo );
1422 /* This visual wasn't found with glXChooseVisual() */
1423 xmvis = create_glx_visual( dpy, visinfo );
1425 /* unusable visual */
1431 glxCtx->xmesaContext = XMesaCreateContext(xmvis,
1432 shareCtx ? shareCtx->xmesaContext : NULL);
1433 if (!glxCtx->xmesaContext) {
1438 glxCtx->glxContext.isDirect = GL_FALSE;
1439 glxCtx->glxContext.currentDpy = dpy;
1440 glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
1442 assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
1444 return (GLXContext) glxCtx;
1448 /* XXX these may have to be removed due to thread-safety issues. */
1449 static GLXContext MakeCurrent_PrevContext = 0;
1450 static GLXDrawable MakeCurrent_PrevDrawable = 0;
1451 static GLXDrawable MakeCurrent_PrevReadable = 0;
1452 static XMesaBuffer MakeCurrent_PrevDrawBuffer = 0;
1453 static XMesaBuffer MakeCurrent_PrevReadBuffer = 0;
1456 /* GLX 1.3 and later */
1458 Fake_glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
1459 GLXDrawable read, GLXContext ctx )
1461 struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
1462 static boolean firsttime = 1, no_rast = 0;
1465 no_rast = getenv("SP_NO_RAST") != NULL;
1470 if (ctx && draw && read) {
1471 XMesaBuffer drawBuffer, readBuffer;
1472 XMesaContext xmctx = glxCtx->xmesaContext;
1474 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'draw' */
1475 if (ctx == MakeCurrent_PrevContext
1476 && draw == MakeCurrent_PrevDrawable) {
1477 drawBuffer = MakeCurrent_PrevDrawBuffer;
1480 drawBuffer = XMesaFindBuffer( dpy, draw );
1483 /* drawable must be a new window! */
1484 drawBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, draw );
1486 /* Out of memory, or context/drawable depth mismatch */
1490 FXcreateContext( xmctx->xm_visual, draw, xmctx, drawBuffer );
1494 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */
1495 if (ctx == MakeCurrent_PrevContext
1496 && read == MakeCurrent_PrevReadable) {
1497 readBuffer = MakeCurrent_PrevReadBuffer;
1500 readBuffer = XMesaFindBuffer( dpy, read );
1503 /* drawable must be a new window! */
1504 readBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, read );
1506 /* Out of memory, or context/drawable depth mismatch */
1510 FXcreateContext( xmctx->xm_visual, read, xmctx, readBuffer );
1515 MakeCurrent_PrevContext == ctx &&
1516 MakeCurrent_PrevDrawable == draw &&
1517 MakeCurrent_PrevReadable == read &&
1518 MakeCurrent_PrevDrawBuffer == drawBuffer &&
1519 MakeCurrent_PrevReadBuffer == readBuffer)
1522 MakeCurrent_PrevContext = ctx;
1523 MakeCurrent_PrevDrawable = draw;
1524 MakeCurrent_PrevReadable = read;
1525 MakeCurrent_PrevDrawBuffer = drawBuffer;
1526 MakeCurrent_PrevReadBuffer = readBuffer;
1528 /* Now make current! */
1529 if (XMesaMakeCurrent2(xmctx, drawBuffer, readBuffer)) {
1530 ((__GLXcontext *) ctx)->currentDpy = dpy;
1531 ((__GLXcontext *) ctx)->currentDrawable = draw;
1532 ((__GLXcontext *) ctx)->currentReadable = read;
1539 else if (!ctx && !draw && !read) {
1540 /* release current context w/out assigning new one. */
1541 XMesaMakeCurrent( NULL, NULL );
1542 MakeCurrent_PrevContext = 0;
1543 MakeCurrent_PrevDrawable = 0;
1544 MakeCurrent_PrevReadable = 0;
1545 MakeCurrent_PrevDrawBuffer = 0;
1546 MakeCurrent_PrevReadBuffer = 0;
1550 /* The args must either all be non-zero or all zero.
1559 Fake_glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx )
1561 return Fake_glXMakeContextCurrent( dpy, drawable, drawable, ctx );
1566 Fake_glXCreateGLXPixmap( Display *dpy, XVisualInfo *visinfo, Pixmap pixmap )
1571 v = find_glx_visual( dpy, visinfo );
1573 v = create_glx_visual( dpy, visinfo );
1575 /* unusable visual */
1580 b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
1588 /*** GLX_MESA_pixmap_colormap ***/
1591 Fake_glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visinfo,
1592 Pixmap pixmap, Colormap cmap )
1597 v = find_glx_visual( dpy, visinfo );
1599 v = create_glx_visual( dpy, visinfo );
1601 /* unusable visual */
1606 b = XMesaCreatePixmapBuffer( v, pixmap, cmap );
1615 Fake_glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap )
1617 XMesaBuffer b = XMesaFindBuffer(dpy, pixmap);
1619 XMesaDestroyBuffer(b);
1621 else if (_mesa_getenv("MESA_DEBUG")) {
1622 _mesa_warning(NULL, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n");
1628 Fake_glXCopyContext( Display *dpy, GLXContext src, GLXContext dst,
1629 unsigned long mask )
1631 struct fake_glx_context *fakeSrc = (struct fake_glx_context *) src;
1632 struct fake_glx_context *fakeDst = (struct fake_glx_context *) dst;
1633 XMesaContext xm_src = fakeSrc->xmesaContext;
1634 XMesaContext xm_dst = fakeDst->xmesaContext;
1636 if (MakeCurrent_PrevContext == src) {
1639 st_copy_context_state( xm_src->st, xm_dst->st, (GLuint) mask );
1644 Fake_glXQueryExtension( Display *dpy, int *errorb, int *event )
1646 /* Mesa's GLX isn't really an X extension but we try to act like one. */
1654 extern void _kw_ungrab_all( Display *dpy );
1655 void _kw_ungrab_all( Display *dpy )
1657 XUngrabPointer( dpy, CurrentTime );
1658 XUngrabKeyboard( dpy, CurrentTime );
1663 Fake_glXDestroyContext( Display *dpy, GLXContext ctx )
1665 struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
1667 MakeCurrent_PrevContext = 0;
1668 MakeCurrent_PrevDrawable = 0;
1669 MakeCurrent_PrevReadable = 0;
1670 MakeCurrent_PrevDrawBuffer = 0;
1671 MakeCurrent_PrevReadBuffer = 0;
1672 XMesaDestroyContext( glxCtx->xmesaContext );
1673 XMesaGarbageCollect();
1679 Fake_glXIsDirect( Display *dpy, GLXContext ctx )
1689 Fake_glXSwapBuffers( Display *dpy, GLXDrawable drawable )
1691 XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
1692 static boolean firsttime = 1, no_rast = 0;
1695 no_rast = getenv("SP_NO_RAST") != NULL;
1703 XMesaSwapBuffers(buffer);
1705 else if (_mesa_getenv("MESA_DEBUG")) {
1706 _mesa_warning(NULL, "glXSwapBuffers: invalid drawable 0x%x\n",
1713 /*** GLX_MESA_copy_sub_buffer ***/
1716 Fake_glXCopySubBufferMESA( Display *dpy, GLXDrawable drawable,
1717 int x, int y, int width, int height )
1719 XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
1721 XMesaCopySubBuffer(buffer, x, y, width, height);
1723 else if (_mesa_getenv("MESA_DEBUG")) {
1724 _mesa_warning(NULL, "Mesa: glXCopySubBufferMESA: invalid drawable\n");
1730 Fake_glXQueryVersion( Display *dpy, int *maj, int *min )
1733 /* Return GLX version, not Mesa version */
1734 assert(CLIENT_MAJOR_VERSION == SERVER_MAJOR_VERSION);
1735 *maj = CLIENT_MAJOR_VERSION;
1736 *min = MIN2( CLIENT_MINOR_VERSION, SERVER_MINOR_VERSION );
1742 * Query the GLX attributes of the given XVisualInfo.
1745 get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig )
1751 return GLX_BAD_ATTRIBUTE;
1752 *value = (int) True;
1754 case GLX_BUFFER_SIZE:
1755 *value = xmvis->visinfo->depth;
1758 *value = xmvis->mesa_visual.level;
1762 return GLX_BAD_ATTRIBUTE;
1763 if (xmvis->mesa_visual.rgbMode) {
1770 case GLX_DOUBLEBUFFER:
1771 *value = (int) xmvis->mesa_visual.doubleBufferMode;
1774 *value = (int) xmvis->mesa_visual.stereoMode;
1776 case GLX_AUX_BUFFERS:
1777 *value = xmvis->mesa_visual.numAuxBuffers;
1780 *value = xmvis->mesa_visual.redBits;
1782 case GLX_GREEN_SIZE:
1783 *value = xmvis->mesa_visual.greenBits;
1786 *value = xmvis->mesa_visual.blueBits;
1788 case GLX_ALPHA_SIZE:
1789 *value = xmvis->mesa_visual.alphaBits;
1791 case GLX_DEPTH_SIZE:
1792 *value = xmvis->mesa_visual.depthBits;
1794 case GLX_STENCIL_SIZE:
1795 *value = xmvis->mesa_visual.stencilBits;
1797 case GLX_ACCUM_RED_SIZE:
1798 *value = xmvis->mesa_visual.accumRedBits;
1800 case GLX_ACCUM_GREEN_SIZE:
1801 *value = xmvis->mesa_visual.accumGreenBits;
1803 case GLX_ACCUM_BLUE_SIZE:
1804 *value = xmvis->mesa_visual.accumBlueBits;
1806 case GLX_ACCUM_ALPHA_SIZE:
1807 *value = xmvis->mesa_visual.accumAlphaBits;
1811 * GLX_EXT_visual_info extension
1813 case GLX_X_VISUAL_TYPE_EXT:
1814 switch (xmvis->visinfo->CLASS) {
1815 case StaticGray: *value = GLX_STATIC_GRAY_EXT; return 0;
1816 case GrayScale: *value = GLX_GRAY_SCALE_EXT; return 0;
1817 case StaticColor: *value = GLX_STATIC_GRAY_EXT; return 0;
1818 case PseudoColor: *value = GLX_PSEUDO_COLOR_EXT; return 0;
1819 case TrueColor: *value = GLX_TRUE_COLOR_EXT; return 0;
1820 case DirectColor: *value = GLX_DIRECT_COLOR_EXT; return 0;
1823 case GLX_TRANSPARENT_TYPE_EXT:
1824 if (xmvis->mesa_visual.level==0) {
1826 *value = GLX_NONE_EXT;
1828 else if (xmvis->mesa_visual.level>0) {
1830 if (xmvis->mesa_visual.rgbMode) {
1831 *value = GLX_TRANSPARENT_RGB_EXT;
1834 *value = GLX_TRANSPARENT_INDEX_EXT;
1837 else if (xmvis->mesa_visual.level<0) {
1839 *value = GLX_NONE_EXT;
1842 case GLX_TRANSPARENT_INDEX_VALUE_EXT:
1844 int pixel = transparent_pixel( xmvis );
1848 /* else undefined */
1851 case GLX_TRANSPARENT_RED_VALUE_EXT:
1854 case GLX_TRANSPARENT_GREEN_VALUE_EXT:
1857 case GLX_TRANSPARENT_BLUE_VALUE_EXT:
1860 case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
1865 * GLX_EXT_visual_info extension
1867 case GLX_VISUAL_CAVEAT_EXT:
1868 /* test for zero, just in case */
1869 if (xmvis->mesa_visual.visualRating > 0)
1870 *value = xmvis->mesa_visual.visualRating;
1872 *value = GLX_NONE_EXT;
1876 * GLX_ARB_multisample
1878 case GLX_SAMPLE_BUFFERS_ARB:
1881 case GLX_SAMPLES_ARB:
1888 case GLX_SCREEN_EXT:
1890 return GLX_BAD_ATTRIBUTE;
1891 *value = xmvis->visinfo->screen;
1893 case GLX_DRAWABLE_TYPE: /*SGIX too */
1895 return GLX_BAD_ATTRIBUTE;
1896 *value = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT;
1898 case GLX_RENDER_TYPE_SGIX:
1900 return GLX_BAD_ATTRIBUTE;
1901 if (xmvis->mesa_visual.rgbMode)
1902 *value = GLX_RGBA_BIT;
1904 *value = GLX_COLOR_INDEX_BIT;
1906 case GLX_X_RENDERABLE_SGIX:
1908 return GLX_BAD_ATTRIBUTE;
1909 *value = True; /* XXX really? */
1911 case GLX_FBCONFIG_ID_SGIX:
1913 return GLX_BAD_ATTRIBUTE;
1914 *value = xmvis->visinfo->visualid;
1916 case GLX_MAX_PBUFFER_WIDTH:
1918 return GLX_BAD_ATTRIBUTE;
1919 /* XXX or MAX_WIDTH? */
1920 *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen);
1922 case GLX_MAX_PBUFFER_HEIGHT:
1924 return GLX_BAD_ATTRIBUTE;
1925 *value = DisplayHeight(xmvis->display, xmvis->visinfo->screen);
1927 case GLX_MAX_PBUFFER_PIXELS:
1929 return GLX_BAD_ATTRIBUTE;
1930 *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen) *
1931 DisplayHeight(xmvis->display, xmvis->visinfo->screen);
1935 return GLX_BAD_ATTRIBUTE;
1936 *value = xmvis->visinfo->visualid;
1939 #ifdef GLX_EXT_texture_from_pixmap
1940 case GLX_BIND_TO_TEXTURE_RGB_EXT:
1941 *value = True; /*XXX*/
1943 case GLX_BIND_TO_TEXTURE_RGBA_EXT:
1945 *value = xmvis->mesa_visual.alphaBits > 0 ? True : False;
1947 case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
1948 *value = True; /*XXX*/
1950 case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
1951 *value = (GLX_TEXTURE_1D_BIT_EXT |
1952 GLX_TEXTURE_2D_BIT_EXT |
1953 GLX_TEXTURE_RECTANGLE_BIT_EXT); /*XXX*/
1955 case GLX_Y_INVERTED_EXT:
1956 *value = True; /*XXX*/
1961 return GLX_BAD_ATTRIBUTE;
1968 Fake_glXGetConfig( Display *dpy, XVisualInfo *visinfo,
1969 int attrib, int *value )
1973 if (!dpy || !visinfo)
1974 return GLX_BAD_ATTRIBUTE;
1976 xmvis = find_glx_visual( dpy, visinfo );
1978 /* this visual wasn't obtained with glXChooseVisual */
1979 xmvis = create_glx_visual( dpy, visinfo );
1981 /* this visual can't be used for GL rendering */
1982 if (attrib==GLX_USE_GL) {
1983 *value = (int) False;
1987 return GLX_BAD_VISUAL;
1992 k = get_config(xmvis, attrib, value, GL_FALSE);
1998 Fake_glXWaitGL( void )
2000 XMesaContext xmesa = XMesaGetCurrentContext();
2001 XMesaFlush( xmesa );
2007 Fake_glXWaitX( void )
2009 XMesaContext xmesa = XMesaGetCurrentContext();
2010 XMesaFlush( xmesa );
2015 get_extensions( void )
2018 const char *fx = _mesa_getenv("MESA_GLX_FX");
2019 if (fx && fx[0] != 'd') {
2023 return EXTENSIONS + 23; /* skip "GLX_MESA_set_3dfx_mode" */
2028 /* GLX 1.1 and later */
2030 Fake_glXQueryExtensionsString( Display *dpy, int screen )
2034 return get_extensions();
2039 /* GLX 1.1 and later */
2041 Fake_glXQueryServerString( Display *dpy, int screen, int name )
2043 static char version[1000];
2044 _mesa_sprintf(version, "%d.%d %s",
2045 SERVER_MAJOR_VERSION, SERVER_MINOR_VERSION, MESA_GLX_VERSION);
2051 case GLX_EXTENSIONS:
2052 return get_extensions();
2064 /* GLX 1.1 and later */
2066 Fake_glXGetClientString( Display *dpy, int name )
2068 static char version[1000];
2069 _mesa_sprintf(version, "%d.%d %s", CLIENT_MAJOR_VERSION,
2070 CLIENT_MINOR_VERSION, MESA_GLX_VERSION);
2075 case GLX_EXTENSIONS:
2076 return get_extensions();
2094 Fake_glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config,
2095 int attribute, int *value )
2097 XMesaVisual v = (XMesaVisual) config;
2101 if (!dpy || !config || !value)
2104 return get_config(v, attribute, value, GL_TRUE);
2108 static GLXFBConfig *
2109 Fake_glXGetFBConfigs( Display *dpy, int screen, int *nelements )
2111 XVisualInfo *visuals, visTemplate;
2112 const long visMask = VisualScreenMask;
2115 /* Get list of all X visuals */
2116 visTemplate.screen = screen;
2117 visuals = XGetVisualInfo(dpy, visMask, &visTemplate, nelements);
2118 if (*nelements > 0) {
2119 XMesaVisual *results;
2120 results = (XMesaVisual *) _mesa_malloc(*nelements * sizeof(XMesaVisual));
2125 for (i = 0; i < *nelements; i++) {
2126 results[i] = create_glx_visual(dpy, visuals + i);
2128 return (GLXFBConfig *) results;
2134 static GLXFBConfig *
2135 Fake_glXChooseFBConfig( Display *dpy, int screen,
2136 const int *attribList, int *nitems )
2140 if (!attribList || !attribList[0]) {
2141 /* return list of all configs (per GLX_SGIX_fbconfig spec) */
2142 return Fake_glXGetFBConfigs(dpy, screen, nitems);
2145 xmvis = choose_visual(dpy, screen, attribList, GL_TRUE);
2147 GLXFBConfig *config = (GLXFBConfig *) _mesa_malloc(sizeof(XMesaVisual));
2153 config[0] = (GLXFBConfig) xmvis;
2154 return (GLXFBConfig *) config;
2163 static XVisualInfo *
2164 Fake_glXGetVisualFromFBConfig( Display *dpy, GLXFBConfig config )
2166 if (dpy && config) {
2167 XMesaVisual xmvis = (XMesaVisual) config;
2169 return xmvis->vishandle;
2171 /* create a new vishandle - the cached one may be stale */
2172 xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo));
2173 if (xmvis->vishandle) {
2174 _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
2176 return xmvis->vishandle;
2186 Fake_glXCreateWindow( Display *dpy, GLXFBConfig config, Window win,
2187 const int *attribList )
2189 XMesaVisual xmvis = (XMesaVisual) config;
2194 xmbuf = XMesaCreateWindowBuffer(xmvis, win);
2199 /* XXX this will segfault if actually called */
2200 FXcreateContext(xmvis, win, NULL, xmbuf);
2204 (void) attribList; /* Ignored in GLX 1.3 */
2206 return win; /* A hack for now */
2211 Fake_glXDestroyWindow( Display *dpy, GLXWindow window )
2213 XMesaBuffer b = XMesaFindBuffer(dpy, (XMesaDrawable) window);
2215 XMesaDestroyBuffer(b);
2216 /* don't destroy X window */
2222 Fake_glXCreatePixmap( Display *dpy, GLXFBConfig config, Pixmap pixmap,
2223 const int *attribList )
2225 XMesaVisual v = (XMesaVisual) config;
2228 int target = 0, format = 0, mipmap = 0;
2231 if (!dpy || !config || !pixmap)
2234 for (attr = attribList; *attr; attr++) {
2236 case GLX_TEXTURE_FORMAT_EXT:
2239 case GLX_TEXTURE_FORMAT_NONE_EXT:
2240 case GLX_TEXTURE_FORMAT_RGB_EXT:
2241 case GLX_TEXTURE_FORMAT_RGBA_EXT:
2249 case GLX_TEXTURE_TARGET_EXT:
2252 case GLX_TEXTURE_1D_EXT:
2253 case GLX_TEXTURE_2D_EXT:
2254 case GLX_TEXTURE_RECTANGLE_EXT:
2262 case GLX_MIPMAP_TEXTURE_EXT:
2273 if (format == GLX_TEXTURE_FORMAT_RGB_EXT) {
2274 if (get_config(v, GLX_BIND_TO_TEXTURE_RGB_EXT,
2275 &value, GL_TRUE) != Success
2277 return 0; /* error! */
2280 else if (format == GLX_TEXTURE_FORMAT_RGBA_EXT) {
2281 if (get_config(v, GLX_BIND_TO_TEXTURE_RGBA_EXT,
2282 &value, GL_TRUE) != Success
2284 return 0; /* error! */
2288 if (get_config(v, GLX_BIND_TO_MIPMAP_TEXTURE_EXT,
2289 &value, GL_TRUE) != Success
2291 return 0; /* error! */
2294 if (target == GLX_TEXTURE_1D_EXT) {
2295 if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
2296 &value, GL_TRUE) != Success
2297 || (value & GLX_TEXTURE_1D_BIT_EXT) == 0) {
2298 return 0; /* error! */
2301 else if (target == GLX_TEXTURE_2D_EXT) {
2302 if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
2303 &value, GL_TRUE) != Success
2304 || (value & GLX_TEXTURE_2D_BIT_EXT) == 0) {
2305 return 0; /* error! */
2308 if (target == GLX_TEXTURE_RECTANGLE_EXT) {
2309 if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
2310 &value, GL_TRUE) != Success
2311 || (value & GLX_TEXTURE_RECTANGLE_BIT_EXT) == 0) {
2312 return 0; /* error! */
2316 if (format || target || mipmap) {
2317 /* texture from pixmap */
2318 b = XMesaCreatePixmapTextureBuffer(v, pixmap, 0, format, target, mipmap);
2321 b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
2332 Fake_glXDestroyPixmap( Display *dpy, GLXPixmap pixmap )
2334 XMesaBuffer b = XMesaFindBuffer(dpy, (XMesaDrawable)pixmap);
2336 XMesaDestroyBuffer(b);
2337 /* don't destroy X pixmap */
2342 Fake_glXCreatePbuffer( Display *dpy, GLXFBConfig config,
2343 const int *attribList )
2345 XMesaVisual xmvis = (XMesaVisual) config;
2348 int width = 0, height = 0;
2349 GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
2353 for (attrib = attribList; *attrib; attrib++) {
2355 case GLX_PBUFFER_WIDTH:
2359 case GLX_PBUFFER_HEIGHT:
2363 case GLX_PRESERVED_CONTENTS:
2365 preserveContents = *attrib; /* ignored */
2367 case GLX_LARGEST_PBUFFER:
2369 useLargest = *attrib; /* ignored */
2376 /* not used at this time */
2378 (void) preserveContents;
2380 if (width == 0 || height == 0)
2383 xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
2384 /* A GLXPbuffer handle must be an X Drawable because that's what
2385 * glXMakeCurrent takes.
2388 return (GLXPbuffer) xmbuf->drawable;
2395 Fake_glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf )
2397 XMesaBuffer b = XMesaFindBuffer(dpy, pbuf);
2399 XMesaDestroyBuffer(b);
2405 Fake_glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute,
2406 unsigned int *value )
2408 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, draw);
2412 switch (attribute) {
2414 *value = xmesa_buffer_width(xmbuf);
2417 *value = xmesa_buffer_width(xmbuf);
2419 case GLX_PRESERVED_CONTENTS:
2422 case GLX_LARGEST_PBUFFER:
2423 *value = xmesa_buffer_width(xmbuf) * xmesa_buffer_height(xmbuf);
2425 case GLX_FBCONFIG_ID:
2426 *value = xmbuf->xm_visual->visinfo->visualid;
2428 #ifdef GLX_EXT_texture_from_pixmap
2429 case GLX_TEXTURE_FORMAT_EXT:
2430 *value = xmbuf->TextureFormat;
2432 case GLX_TEXTURE_TARGET_EXT:
2433 *value = xmbuf->TextureTarget;
2435 case GLX_MIPMAP_TEXTURE_EXT:
2436 *value = xmbuf->TextureMipmap;
2441 return; /* raise BadValue error */
2447 Fake_glXCreateNewContext( Display *dpy, GLXFBConfig config,
2448 int renderType, GLXContext shareList, Bool direct )
2450 struct fake_glx_context *glxCtx;
2451 struct fake_glx_context *shareCtx = (struct fake_glx_context *) shareList;
2452 XMesaVisual xmvis = (XMesaVisual) config;
2454 if (!dpy || !config ||
2455 (renderType != GLX_RGBA_TYPE && renderType != GLX_COLOR_INDEX_TYPE))
2458 glxCtx = CALLOC_STRUCT(fake_glx_context);
2462 /* deallocate unused windows/buffers */
2463 XMesaGarbageCollect();
2465 glxCtx->xmesaContext = XMesaCreateContext(xmvis,
2466 shareCtx ? shareCtx->xmesaContext : NULL);
2467 if (!glxCtx->xmesaContext) {
2472 glxCtx->glxContext.isDirect = GL_FALSE;
2473 glxCtx->glxContext.currentDpy = dpy;
2474 glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
2476 assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
2478 return (GLXContext) glxCtx;
2483 Fake_glXQueryContext( Display *dpy, GLXContext ctx, int attribute, int *value )
2485 struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
2486 XMesaContext xmctx = glxCtx->xmesaContext;
2491 switch (attribute) {
2492 case GLX_FBCONFIG_ID:
2493 *value = xmctx->xm_visual->visinfo->visualid;
2495 case GLX_RENDER_TYPE:
2496 if (xmctx->xm_visual->mesa_visual.rgbMode)
2497 *value = GLX_RGBA_BIT;
2499 *value = GLX_COLOR_INDEX_BIT;
2505 return GLX_BAD_ATTRIBUTE;
2512 Fake_glXSelectEvent( Display *dpy, GLXDrawable drawable, unsigned long mask )
2514 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
2516 xmbuf->selectedEvents = mask;
2521 Fake_glXGetSelectedEvent( Display *dpy, GLXDrawable drawable,
2522 unsigned long *mask )
2524 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
2526 *mask = xmbuf->selectedEvents;
2533 /*** GLX_SGI_swap_control ***/
2536 Fake_glXSwapIntervalSGI(int interval)
2544 /*** GLX_SGI_video_sync ***/
2546 static unsigned int FrameCounter = 0;
2549 Fake_glXGetVideoSyncSGI(unsigned int *count)
2551 /* this is a bogus implementation */
2552 *count = FrameCounter++;
2557 Fake_glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
2559 if (divisor <= 0 || remainder < 0)
2560 return GLX_BAD_VALUE;
2561 /* this is a bogus implementation */
2563 while (FrameCounter % divisor != remainder)
2565 *count = FrameCounter;
2571 /*** GLX_SGI_make_current_read ***/
2574 Fake_glXMakeCurrentReadSGI(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx)
2576 return Fake_glXMakeContextCurrent( dpy, draw, read, ctx );
2581 Fake_glXGetCurrentReadDrawableSGI(void)
2588 /*** GLX_SGIX_video_source ***/
2591 static GLXVideoSourceSGIX
2592 Fake_glXCreateGLXVideoSourceSGIX(Display *dpy, int screen, VLServer server, VLPath path, int nodeClass, VLNode drainNode)
2604 Fake_glXDestroyGLXVideoSourceSGIX(Display *dpy, GLXVideoSourceSGIX src)
2613 /*** GLX_EXT_import_context ***/
2616 Fake_glXFreeContextEXT(Display *dpy, GLXContext context)
2623 Fake_glXGetContextIDEXT(const GLXContext context)
2630 Fake_glXImportContextEXT(Display *dpy, GLXContextID contextID)
2638 Fake_glXQueryContextInfoEXT(Display *dpy, GLXContext context, int attribute, int *value)
2649 /*** GLX_SGIX_fbconfig ***/
2652 Fake_glXGetFBConfigAttribSGIX(Display *dpy, GLXFBConfigSGIX config, int attribute, int *value)
2654 return Fake_glXGetFBConfigAttrib(dpy, config, attribute, value);
2657 static GLXFBConfigSGIX *
2658 Fake_glXChooseFBConfigSGIX(Display *dpy, int screen, int *attrib_list, int *nelements)
2660 return (GLXFBConfig *) Fake_glXChooseFBConfig(dpy, screen, attrib_list, nelements);
2665 Fake_glXCreateGLXPixmapWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, Pixmap pixmap)
2667 XMesaVisual xmvis = (XMesaVisual) config;
2668 XMesaBuffer xmbuf = XMesaCreatePixmapBuffer(xmvis, pixmap, 0);
2669 return xmbuf->drawable; /* need to return an X ID */
2674 Fake_glXCreateContextWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, int render_type, GLXContext share_list, Bool direct)
2676 XMesaVisual xmvis = (XMesaVisual) config;
2677 struct fake_glx_context *glxCtx;
2678 struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list;
2680 glxCtx = CALLOC_STRUCT(fake_glx_context);
2684 /* deallocate unused windows/buffers */
2685 XMesaGarbageCollect();
2687 glxCtx->xmesaContext = XMesaCreateContext(xmvis,
2688 shareCtx ? shareCtx->xmesaContext : NULL);
2689 if (!glxCtx->xmesaContext) {
2694 glxCtx->glxContext.isDirect = GL_FALSE;
2695 glxCtx->glxContext.currentDpy = dpy;
2696 glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
2698 assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
2700 return (GLXContext) glxCtx;
2704 static XVisualInfo *
2705 Fake_glXGetVisualFromFBConfigSGIX(Display *dpy, GLXFBConfigSGIX config)
2707 return Fake_glXGetVisualFromFBConfig(dpy, config);
2711 static GLXFBConfigSGIX
2712 Fake_glXGetFBConfigFromVisualSGIX(Display *dpy, XVisualInfo *vis)
2714 XMesaVisual xmvis = find_glx_visual(dpy, vis);
2716 /* This visual wasn't found with glXChooseVisual() */
2717 xmvis = create_glx_visual(dpy, vis);
2720 return (GLXFBConfigSGIX) xmvis;
2725 /*** GLX_SGIX_pbuffer ***/
2727 static GLXPbufferSGIX
2728 Fake_glXCreateGLXPbufferSGIX(Display *dpy, GLXFBConfigSGIX config,
2729 unsigned int width, unsigned int height,
2732 XMesaVisual xmvis = (XMesaVisual) config;
2735 GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
2739 for (attrib = attribList; attrib && *attrib; attrib++) {
2741 case GLX_PRESERVED_CONTENTS_SGIX:
2743 preserveContents = *attrib; /* ignored */
2745 case GLX_LARGEST_PBUFFER_SGIX:
2747 useLargest = *attrib; /* ignored */
2754 /* not used at this time */
2756 (void) preserveContents;
2758 xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
2759 /* A GLXPbuffer handle must be an X Drawable because that's what
2760 * glXMakeCurrent takes.
2762 return (GLXPbuffer) xmbuf->drawable;
2767 Fake_glXDestroyGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf)
2769 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
2771 XMesaDestroyBuffer(xmbuf);
2777 Fake_glXQueryGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf, int attribute, unsigned int *value)
2779 const XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
2782 /* Generate GLXBadPbufferSGIX for bad pbuffer */
2786 switch (attribute) {
2787 case GLX_PRESERVED_CONTENTS_SGIX:
2790 case GLX_LARGEST_PBUFFER_SGIX:
2791 *value = xmesa_buffer_width(xmbuf) * xmesa_buffer_height(xmbuf);
2793 case GLX_WIDTH_SGIX:
2794 *value = xmesa_buffer_width(xmbuf);
2796 case GLX_HEIGHT_SGIX:
2797 *value = xmesa_buffer_height(xmbuf);
2799 case GLX_EVENT_MASK_SGIX:
2800 *value = 0; /* XXX might be wrong */
2810 Fake_glXSelectEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long mask)
2812 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
2814 /* Note: we'll never generate clobber events */
2815 xmbuf->selectedEvents = mask;
2821 Fake_glXGetSelectedEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long *mask)
2823 XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
2825 *mask = xmbuf->selectedEvents;
2834 /*** GLX_SGI_cushion ***/
2837 Fake_glXCushionSGI(Display *dpy, Window win, float cushion)
2846 /*** GLX_SGIX_video_resize ***/
2849 Fake_glXBindChannelToWindowSGIX(Display *dpy, int screen, int channel , Window window)
2859 Fake_glXChannelRectSGIX(Display *dpy, int screen, int channel, int x, int y, int w, int h)
2872 Fake_glXQueryChannelRectSGIX(Display *dpy, int screen, int channel, int *x, int *y, int *w, int *h)
2885 Fake_glXQueryChannelDeltasSGIX(Display *dpy, int screen, int channel, int *dx, int *dy, int *dw, int *dh)
2898 Fake_glXChannelRectSyncSGIX(Display *dpy, int screen, int channel, GLenum synctype)
2909 /*** GLX_SGIX_dmbuffer **/
2911 #if defined(_DM_BUFFER_H_)
2913 Fake_glXAssociateDMPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuffer, DMparams *params, DMbuffer dmbuffer)
2924 /*** GLX_SGIX_swap_group ***/
2927 Fake_glXJoinSwapGroupSGIX(Display *dpy, GLXDrawable drawable, GLXDrawable member)
2936 /*** GLX_SGIX_swap_barrier ***/
2939 Fake_glXBindSwapBarrierSGIX(Display *dpy, GLXDrawable drawable, int barrier)
2947 Fake_glXQueryMaxSwapBarriersSGIX(Display *dpy, int screen, int *max)
2957 /*** GLX_SUN_get_transparent_index ***/
2960 Fake_glXGetTransparentIndexSUN(Display *dpy, Window overlay, Window underlay, long *pTransparent)
2965 (void) pTransparent;
2971 /*** GLX_MESA_release_buffers ***/
2974 * Release the depth, stencil, accum buffers attached to a GLXDrawable
2975 * (a window or pixmap) prior to destroying the GLXDrawable.
2978 Fake_glXReleaseBuffersMESA( Display *dpy, GLXDrawable d )
2980 XMesaBuffer b = XMesaFindBuffer(dpy, d);
2982 XMesaDestroyBuffer(b);
2990 /*** GLX_MESA_set_3dfx_mode ***/
2993 Fake_glXSet3DfxModeMESA( int mode )
2995 return XMesaSetFXmode( mode );
3000 /*** GLX_NV_vertex_array range ***/
3002 Fake_glXAllocateMemoryNV( GLsizei size,
3003 GLfloat readFrequency,
3004 GLfloat writeFrequency,
3008 (void) readFrequency;
3009 (void) writeFrequency;
3016 Fake_glXFreeMemoryNV( GLvoid *pointer )
3022 /*** GLX_MESA_agp_offset ***/
3025 Fake_glXGetAGPOffsetMESA( const GLvoid *pointer )
3032 /*** GLX_EXT_texture_from_pixmap ***/
3035 Fake_glXBindTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer,
3036 const int *attrib_list)
3038 XMesaBuffer b = XMesaFindBuffer(dpy, drawable);
3040 XMesaBindTexImage(dpy, b, buffer, attrib_list);
3044 Fake_glXReleaseTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer)
3046 XMesaBuffer b = XMesaFindBuffer(dpy, drawable);
3048 XMesaReleaseTexImage(dpy, b, buffer);
3052 /* silence warning */
3053 extern struct _glxapi_table *_mesa_GetGLXDispatchTable(void);
3057 * Create a new GLX API dispatch table with its function pointers
3058 * initialized to point to Mesa's "fake" GLX API functions.
3059 * Note: there's a similar function (_real_GetGLXDispatchTable) that
3060 * returns a new dispatch table with all pointers initalized to point
3061 * to "real" GLX functions (which understand GLX wire protocol, etc).
3063 struct _glxapi_table *
3064 _mesa_GetGLXDispatchTable(void)
3066 static struct _glxapi_table glx;
3068 /* be sure our dispatch table size <= libGL's table */
3070 GLuint size = sizeof(struct _glxapi_table) / sizeof(void *);
3072 assert(_glxapi_get_dispatch_table_size() >= size);
3075 /* initialize the whole table to no-ops */
3076 _glxapi_set_no_op_table(&glx);
3078 /* now initialize the table with the functions I implement */
3079 glx.ChooseVisual = Fake_glXChooseVisual;
3080 glx.CopyContext = Fake_glXCopyContext;
3081 glx.CreateContext = Fake_glXCreateContext;
3082 glx.CreateGLXPixmap = Fake_glXCreateGLXPixmap;
3083 glx.DestroyContext = Fake_glXDestroyContext;
3084 glx.DestroyGLXPixmap = Fake_glXDestroyGLXPixmap;
3085 glx.GetConfig = Fake_glXGetConfig;
3086 /*glx.GetCurrentContext = Fake_glXGetCurrentContext;*/
3087 /*glx.GetCurrentDrawable = Fake_glXGetCurrentDrawable;*/
3088 glx.IsDirect = Fake_glXIsDirect;
3089 glx.MakeCurrent = Fake_glXMakeCurrent;
3090 glx.QueryExtension = Fake_glXQueryExtension;
3091 glx.QueryVersion = Fake_glXQueryVersion;
3092 glx.SwapBuffers = Fake_glXSwapBuffers;
3093 glx.UseXFont = Fake_glXUseXFont;
3094 glx.WaitGL = Fake_glXWaitGL;
3095 glx.WaitX = Fake_glXWaitX;
3097 /*** GLX_VERSION_1_1 ***/
3098 glx.GetClientString = Fake_glXGetClientString;
3099 glx.QueryExtensionsString = Fake_glXQueryExtensionsString;
3100 glx.QueryServerString = Fake_glXQueryServerString;
3102 /*** GLX_VERSION_1_2 ***/
3103 /*glx.GetCurrentDisplay = Fake_glXGetCurrentDisplay;*/
3105 /*** GLX_VERSION_1_3 ***/
3106 glx.ChooseFBConfig = Fake_glXChooseFBConfig;
3107 glx.CreateNewContext = Fake_glXCreateNewContext;
3108 glx.CreatePbuffer = Fake_glXCreatePbuffer;
3109 glx.CreatePixmap = Fake_glXCreatePixmap;
3110 glx.CreateWindow = Fake_glXCreateWindow;
3111 glx.DestroyPbuffer = Fake_glXDestroyPbuffer;
3112 glx.DestroyPixmap = Fake_glXDestroyPixmap;
3113 glx.DestroyWindow = Fake_glXDestroyWindow;
3114 /*glx.GetCurrentReadDrawable = Fake_glXGetCurrentReadDrawable;*/
3115 glx.GetFBConfigAttrib = Fake_glXGetFBConfigAttrib;
3116 glx.GetFBConfigs = Fake_glXGetFBConfigs;
3117 glx.GetSelectedEvent = Fake_glXGetSelectedEvent;
3118 glx.GetVisualFromFBConfig = Fake_glXGetVisualFromFBConfig;
3119 glx.MakeContextCurrent = Fake_glXMakeContextCurrent;
3120 glx.QueryContext = Fake_glXQueryContext;
3121 glx.QueryDrawable = Fake_glXQueryDrawable;
3122 glx.SelectEvent = Fake_glXSelectEvent;
3124 /*** GLX_SGI_swap_control ***/
3125 glx.SwapIntervalSGI = Fake_glXSwapIntervalSGI;
3127 /*** GLX_SGI_video_sync ***/
3128 glx.GetVideoSyncSGI = Fake_glXGetVideoSyncSGI;
3129 glx.WaitVideoSyncSGI = Fake_glXWaitVideoSyncSGI;
3131 /*** GLX_SGI_make_current_read ***/
3132 glx.MakeCurrentReadSGI = Fake_glXMakeCurrentReadSGI;
3133 /*glx.GetCurrentReadDrawableSGI = Fake_glXGetCurrentReadDrawableSGI;*/
3135 /*** GLX_SGIX_video_source ***/
3137 glx.CreateGLXVideoSourceSGIX = Fake_glXCreateGLXVideoSourceSGIX;
3138 glx.DestroyGLXVideoSourceSGIX = Fake_glXDestroyGLXVideoSourceSGIX;
3141 /*** GLX_EXT_import_context ***/
3142 glx.FreeContextEXT = Fake_glXFreeContextEXT;
3143 glx.GetContextIDEXT = Fake_glXGetContextIDEXT;
3144 /*glx.GetCurrentDisplayEXT = Fake_glXGetCurrentDisplayEXT;*/
3145 glx.ImportContextEXT = Fake_glXImportContextEXT;
3146 glx.QueryContextInfoEXT = Fake_glXQueryContextInfoEXT;
3148 /*** GLX_SGIX_fbconfig ***/
3149 glx.GetFBConfigAttribSGIX = Fake_glXGetFBConfigAttribSGIX;
3150 glx.ChooseFBConfigSGIX = Fake_glXChooseFBConfigSGIX;
3151 glx.CreateGLXPixmapWithConfigSGIX = Fake_glXCreateGLXPixmapWithConfigSGIX;
3152 glx.CreateContextWithConfigSGIX = Fake_glXCreateContextWithConfigSGIX;
3153 glx.GetVisualFromFBConfigSGIX = Fake_glXGetVisualFromFBConfigSGIX;
3154 glx.GetFBConfigFromVisualSGIX = Fake_glXGetFBConfigFromVisualSGIX;
3156 /*** GLX_SGIX_pbuffer ***/
3157 glx.CreateGLXPbufferSGIX = Fake_glXCreateGLXPbufferSGIX;
3158 glx.DestroyGLXPbufferSGIX = Fake_glXDestroyGLXPbufferSGIX;
3159 glx.QueryGLXPbufferSGIX = Fake_glXQueryGLXPbufferSGIX;
3160 glx.SelectEventSGIX = Fake_glXSelectEventSGIX;
3161 glx.GetSelectedEventSGIX = Fake_glXGetSelectedEventSGIX;
3163 /*** GLX_SGI_cushion ***/
3164 glx.CushionSGI = Fake_glXCushionSGI;
3166 /*** GLX_SGIX_video_resize ***/
3167 glx.BindChannelToWindowSGIX = Fake_glXBindChannelToWindowSGIX;
3168 glx.ChannelRectSGIX = Fake_glXChannelRectSGIX;
3169 glx.QueryChannelRectSGIX = Fake_glXQueryChannelRectSGIX;
3170 glx.QueryChannelDeltasSGIX = Fake_glXQueryChannelDeltasSGIX;
3171 glx.ChannelRectSyncSGIX = Fake_glXChannelRectSyncSGIX;
3173 /*** GLX_SGIX_dmbuffer **/
3174 #if defined(_DM_BUFFER_H_)
3175 glx.AssociateDMPbufferSGIX = NULL;
3178 /*** GLX_SGIX_swap_group ***/
3179 glx.JoinSwapGroupSGIX = Fake_glXJoinSwapGroupSGIX;
3181 /*** GLX_SGIX_swap_barrier ***/
3182 glx.BindSwapBarrierSGIX = Fake_glXBindSwapBarrierSGIX;
3183 glx.QueryMaxSwapBarriersSGIX = Fake_glXQueryMaxSwapBarriersSGIX;
3185 /*** GLX_SUN_get_transparent_index ***/
3186 glx.GetTransparentIndexSUN = Fake_glXGetTransparentIndexSUN;
3188 /*** GLX_MESA_copy_sub_buffer ***/
3189 glx.CopySubBufferMESA = Fake_glXCopySubBufferMESA;
3191 /*** GLX_MESA_release_buffers ***/
3192 glx.ReleaseBuffersMESA = Fake_glXReleaseBuffersMESA;
3194 /*** GLX_MESA_pixmap_colormap ***/
3195 glx.CreateGLXPixmapMESA = Fake_glXCreateGLXPixmapMESA;
3197 /*** GLX_MESA_set_3dfx_mode ***/
3198 glx.Set3DfxModeMESA = Fake_glXSet3DfxModeMESA;
3200 /*** GLX_NV_vertex_array_range ***/
3201 glx.AllocateMemoryNV = Fake_glXAllocateMemoryNV;
3202 glx.FreeMemoryNV = Fake_glXFreeMemoryNV;
3204 /*** GLX_MESA_agp_offset ***/
3205 glx.GetAGPOffsetMESA = Fake_glXGetAGPOffsetMESA;
3207 /*** GLX_EXT_texture_from_pixmap ***/
3208 glx.BindTexImageEXT = Fake_glXBindTexImageEXT;
3209 glx.ReleaseTexImageEXT = Fake_glXReleaseTexImageEXT;