2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. 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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * This is an emulation of the GLX API which allows Mesa/GLX-based programs
29 * to run on X servers which do not have the real GLX extension.
31 * Thanks to the contributors:
33 * Initial version: Philip Brown (phil@bolthole.com)
34 * Better glXGetConfig() support: Armin Liebchen (liebchen@asylum.cs.utah.edu)
35 * Further visual-handling refinements: Wolfram Gloger
36 * (wmglo@Dent.MED.Uni-Muenchen.DE).
39 * Don't be fooled, stereo isn't supported yet.
45 #include "glxheader.h"
47 #include "main/context.h"
48 #include "main/config.h"
49 #include "main/macros.h"
50 #include "main/imports.h"
51 #include "main/mtypes.h"
52 #include "main/version.h"
56 /* This indicates the client-side GLX API and GLX encoder version. */
57 #define CLIENT_MAJOR_VERSION 1
58 #define CLIENT_MINOR_VERSION 4 /* but don't have 1.3's pbuffers, etc yet */
60 /* This indicates the server-side GLX decoder version.
61 * GLX 1.4 indicates OpenGL 1.3 support
63 #define SERVER_MAJOR_VERSION 1
64 #define SERVER_MINOR_VERSION 4
66 /* This is appended onto the glXGetClient/ServerString version strings. */
67 #define MESA_GLX_VERSION "Mesa " PACKAGE_VERSION
69 /* Who implemented this GLX? */
70 #define VENDOR "Brian Paul"
73 "GLX_MESA_set_3dfx_mode " \
74 "GLX_MESA_copy_sub_buffer " \
75 "GLX_MESA_pixmap_colormap " \
76 "GLX_MESA_release_buffers " \
77 "GLX_ARB_create_context " \
78 "GLX_ARB_get_proc_address " \
79 "GLX_EXT_texture_from_pixmap " \
80 "GLX_EXT_visual_info " \
81 "GLX_EXT_visual_rating " \
82 /*"GLX_SGI_video_sync "*/ \
83 "GLX_SGIX_fbconfig " \
88 /**********************************************************************/
89 /*** GLX Visual Code ***/
90 /**********************************************************************/
95 static XMesaVisual
*VisualTable
= NULL
;
96 static int NumVisuals
= 0;
100 * This struct and some code fragments borrowed
101 * from Mark Kilgard's GLUT library.
103 typedef struct _OverlayInfo
{
104 /* Avoid 64-bit portability problems by being careful to use
105 longs due to the way XGetWindowProperty is specified. Note
106 that these parameters are passed as CARD32s over X
108 unsigned long overlay_visual
;
109 long transparent_type
;
116 /* Macro to handle c_class vs class field name in XVisualInfo struct */
117 #if defined(__cplusplus) || defined(c_plusplus)
118 #define CLASS c_class
126 * Test if the given XVisualInfo is usable for Mesa rendering.
129 is_usable_visual( XVisualInfo
*vinfo
)
131 switch (vinfo
->CLASS
) {
134 /* Any StaticGray/GrayScale visual works in RGB or CI mode */
138 /* Color-index rendering is not supported. */
142 /* Any depth of TrueColor or DirectColor works in RGB mode */
145 /* This should never happen */
153 * Get an array OverlayInfo records for specified screen.
154 * \param dpy the display
155 * \param screen screen number
156 * \param numOverlays returns numver of OverlayInfo records
157 * \return pointer to OverlayInfo array, free with XFree()
160 GetOverlayInfo(Display
*dpy
, int screen
, int *numOverlays
)
162 Atom overlayVisualsAtom
;
165 unsigned char *ovInfo
;
166 unsigned long sizeData
, bytesLeft
;
170 * The SERVER_OVERLAY_VISUALS property on the root window contains
171 * a list of overlay visuals. Get that list now.
173 overlayVisualsAtom
= XInternAtom(dpy
,"SERVER_OVERLAY_VISUALS", True
);
174 if (overlayVisualsAtom
== None
) {
178 status
= XGetWindowProperty(dpy
, RootWindow(dpy
, screen
),
179 overlayVisualsAtom
, 0L, (long) 10000, False
,
180 overlayVisualsAtom
, &actualType
, &actualFormat
,
181 &sizeData
, &bytesLeft
,
184 if (status
!= Success
|| actualType
!= overlayVisualsAtom
||
185 actualFormat
!= 32 || sizeData
< 4) {
186 /* something went wrong */
187 free((void *) ovInfo
);
192 *numOverlays
= sizeData
/ 4;
193 return (OverlayInfo
*) ovInfo
;
199 * Return the level (overlay, normal, underlay) of a given XVisualInfo.
200 * Input: dpy - the X display
201 * vinfo - the XVisualInfo to test
202 * Return: level of the visual:
204 * >0 = overlay planes
205 * <0 = underlay planes
208 level_of_visual( Display
*dpy
, XVisualInfo
*vinfo
)
210 OverlayInfo
*overlay_info
;
211 int numOverlaysPerScreen
, i
;
213 overlay_info
= GetOverlayInfo(dpy
, vinfo
->screen
, &numOverlaysPerScreen
);
218 /* search the overlay visual list for the visual ID of interest */
219 for (i
= 0; i
< numOverlaysPerScreen
; i
++) {
220 const OverlayInfo
*ov
= overlay_info
+ i
;
221 if (ov
->overlay_visual
== vinfo
->visualid
) {
222 /* found the visual */
223 if (/*ov->transparent_type==1 &&*/ ov
->layer
!=0) {
224 int level
= ov
->layer
;
225 free((void *) overlay_info
);
229 free((void *) overlay_info
);
235 /* The visual ID was not found in the overlay list. */
236 free((void *) overlay_info
);
244 * Given an XVisualInfo and RGB, Double, and Depth buffer flags, save the
245 * configuration in our list of GLX visuals.
248 save_glx_visual( Display
*dpy
, XVisualInfo
*vinfo
,
249 GLboolean alphaFlag
, GLboolean dbFlag
,
250 GLboolean stereoFlag
,
251 GLint depth_size
, GLint stencil_size
,
252 GLint accumRedSize
, GLint accumGreenSize
,
253 GLint accumBlueSize
, GLint accumAlphaSize
,
254 GLint level
, GLint numAuxBuffers
)
256 GLboolean ximageFlag
= GL_TRUE
;
261 /* Check if the MESA_BACK_BUFFER env var is set */
262 char *backbuffer
= getenv("MESA_BACK_BUFFER");
264 if (backbuffer
[0]=='p' || backbuffer
[0]=='P') {
265 ximageFlag
= GL_FALSE
;
267 else if (backbuffer
[0]=='x' || backbuffer
[0]=='X') {
268 ximageFlag
= GL_TRUE
;
271 _mesa_warning(NULL
, "Mesa: invalid value for MESA_BACK_BUFFER environment variable, using an XImage.");
277 /* stereo not supported */
282 /* Force the visual to have an alpha channel */
283 if (getenv("MESA_GLX_FORCE_ALPHA"))
286 /* First check if a matching visual is already in the list */
287 for (i
=0; i
<NumVisuals
; i
++) {
288 XMesaVisual v
= VisualTable
[i
];
289 if (v
->display
== dpy
290 && v
->mesa_visual
.level
== level
291 && v
->mesa_visual
.numAuxBuffers
== numAuxBuffers
292 && v
->ximage_flag
== ximageFlag
293 && v
->mesa_visual
.doubleBufferMode
== dbFlag
294 && v
->mesa_visual
.stereoMode
== stereoFlag
295 && (v
->mesa_visual
.alphaBits
> 0) == alphaFlag
296 && (v
->mesa_visual
.depthBits
>= depth_size
|| depth_size
== 0)
297 && (v
->mesa_visual
.stencilBits
>= stencil_size
|| stencil_size
== 0)
298 && (v
->mesa_visual
.accumRedBits
>= accumRedSize
|| accumRedSize
== 0)
299 && (v
->mesa_visual
.accumGreenBits
>= accumGreenSize
|| accumGreenSize
== 0)
300 && (v
->mesa_visual
.accumBlueBits
>= accumBlueSize
|| accumBlueSize
== 0)
301 && (v
->mesa_visual
.accumAlphaBits
>= accumAlphaSize
|| accumAlphaSize
== 0)) {
302 /* now compare visual IDs */
303 if (v
->visinfo
->visualid
== vinfo
->visualid
) {
309 /* Create a new visual and add it to the list. */
311 xmvis
= XMesaCreateVisual( dpy
, vinfo
, GL_TRUE
, alphaFlag
, dbFlag
,
312 stereoFlag
, ximageFlag
,
313 depth_size
, stencil_size
,
314 accumRedSize
, accumBlueSize
,
315 accumBlueSize
, accumAlphaSize
, 0, level
,
318 /* Allocate more space for additional visual */
319 VisualTable
= realloc(VisualTable
, sizeof(XMesaVisual
) * (NumVisuals
+ 1));
320 /* add xmvis to the list */
321 VisualTable
[NumVisuals
] = xmvis
;
323 /* XXX minor hack, because XMesaCreateVisual doesn't support an
324 * aux buffers parameter.
326 xmvis
->mesa_visual
.numAuxBuffers
= numAuxBuffers
;
333 * Return the default number of bits for the Z buffer.
334 * If defined, use the MESA_GLX_DEPTH_BITS env var value.
335 * Otherwise, use the DEFAULT_SOFTWARE_DEPTH_BITS constant.
336 * XXX probably do the same thing for stencil, accum, etc.
339 default_depth_bits(void)
342 const char *zEnv
= getenv("MESA_GLX_DEPTH_BITS");
346 zBits
= DEFAULT_SOFTWARE_DEPTH_BITS
;
351 default_alpha_bits(void)
354 const char *aEnv
= getenv("MESA_GLX_ALPHA_BITS");
363 default_accum_bits(void)
371 * Create a GLX visual from a regular XVisualInfo.
372 * This is called when Fake GLX is given an XVisualInfo which wasn't
373 * returned by glXChooseVisual. Since this is the first time we're
374 * considering this visual we'll take a guess at reasonable values
375 * for depth buffer size, stencil size, accum size, etc.
376 * This is the best we can do with a client-side emulation of GLX.
379 create_glx_visual( Display
*dpy
, XVisualInfo
*visinfo
)
382 GLint zBits
= default_depth_bits();
383 GLint accBits
= default_accum_bits();
384 GLboolean alphaFlag
= default_alpha_bits() > 0;
386 vislevel
= level_of_visual( dpy
, visinfo
);
388 /* Color-index rendering to overlays is not supported. */
391 else if (is_usable_visual( visinfo
)) {
392 /* Configure this visual as RGB, double-buffered, depth-buffered. */
393 /* This is surely wrong for some people's needs but what else */
394 /* can be done? They should use glXChooseVisual(). */
395 return save_glx_visual( dpy
, visinfo
,
396 alphaFlag
, /* alpha */
397 GL_TRUE
, /* double */
398 GL_FALSE
, /* stereo */
400 8, /* stencil bits */
410 _mesa_warning(NULL
, "Mesa: error in glXCreateContext: bad visual\n");
418 * Find the GLX visual associated with an XVisualInfo.
421 find_glx_visual( Display
*dpy
, XVisualInfo
*vinfo
)
425 /* try to match visual id */
426 for (i
=0;i
<NumVisuals
;i
++) {
427 if (VisualTable
[i
]->display
==dpy
428 && VisualTable
[i
]->visinfo
->visualid
== vinfo
->visualid
) {
429 return VisualTable
[i
];
439 * Return the transparent pixel value for a GLX visual.
440 * Input: glxvis - the glx_visual
441 * Return: a pixel value or -1 if no transparent pixel
444 transparent_pixel( XMesaVisual glxvis
)
446 Display
*dpy
= glxvis
->display
;
447 XVisualInfo
*vinfo
= glxvis
->visinfo
;
448 OverlayInfo
*overlay_info
;
449 int numOverlaysPerScreen
, i
;
451 overlay_info
= GetOverlayInfo(dpy
, vinfo
->screen
, &numOverlaysPerScreen
);
456 for (i
= 0; i
< numOverlaysPerScreen
; i
++) {
457 const OverlayInfo
*ov
= overlay_info
+ i
;
458 if (ov
->overlay_visual
== vinfo
->visualid
) {
460 if (ov
->transparent_type
== 0) {
461 /* type 0 indicates no transparency */
462 free((void *) overlay_info
);
466 /* ov->value is the transparent pixel */
467 free((void *) overlay_info
);
473 /* The visual ID was not found in the overlay list. */
474 free((void *) overlay_info
);
481 * Try to get an X visual which matches the given arguments.
484 get_visual( Display
*dpy
, int scr
, unsigned int depth
, int xclass
)
486 XVisualInfo temp
, *vis
;
489 unsigned int default_depth
;
492 mask
= VisualScreenMask
| VisualDepthMask
| VisualClassMask
;
497 default_depth
= DefaultDepth(dpy
,scr
);
498 default_class
= DefaultVisual(dpy
,scr
)->CLASS
;
500 if (depth
==default_depth
&& xclass
==default_class
) {
501 /* try to get root window's visual */
502 temp
.visualid
= DefaultVisual(dpy
,scr
)->visualid
;
503 mask
|= VisualIDMask
;
506 vis
= XGetVisualInfo( dpy
, mask
, &temp
, &n
);
508 /* In case bits/pixel > 24, make sure color channels are still <=8 bits.
509 * An SGI Infinite Reality system, for example, can have 30bpp pixels:
510 * 10 bits per color channel. Mesa's limited to a max of 8 bits/channel.
512 if (vis
&& depth
> 24 && (xclass
==TrueColor
|| xclass
==DirectColor
)) {
513 if (_mesa_bitcount((GLuint
) vis
->red_mask
) <= 8 &&
514 _mesa_bitcount((GLuint
) vis
->green_mask
) <= 8 &&
515 _mesa_bitcount((GLuint
) vis
->blue_mask
) <= 8) {
530 * Retrieve the value of the given environment variable and find
531 * the X visual which matches it.
532 * Input: dpy - the display
533 * screen - the screen number
534 * varname - the name of the environment variable
535 * Return: an XVisualInfo pointer to NULL if error.
538 get_env_visual(Display
*dpy
, int scr
, const char *varname
)
540 char value
[100], type
[100];
541 int depth
, xclass
= -1;
544 if (!getenv( varname
)) {
548 strncpy( value
, getenv(varname
), 100 );
551 sscanf( value
, "%s %d", type
, &depth
);
553 if (strcmp(type
,"TrueColor")==0) xclass
= TrueColor
;
554 else if (strcmp(type
,"DirectColor")==0) xclass
= DirectColor
;
555 else if (strcmp(type
,"GrayScale")==0) xclass
= GrayScale
;
556 else if (strcmp(type
,"StaticGray")==0) xclass
= StaticGray
;
558 if (xclass
>-1 && depth
>0) {
559 vis
= get_visual( dpy
, scr
, depth
, xclass
);
565 _mesa_warning(NULL
, "GLX unable to find visual class=%s, depth=%d.",
574 * Select an X visual which satisfies the RGBA/CI flag and minimum depth.
575 * Input: dpy, screen - X display and screen number
576 * min_depth - minimum visual depth
577 * preferred_class - preferred GLX visual class or DONT_CARE
578 * Return: pointer to an XVisualInfo or NULL.
581 choose_x_visual(Display
*dpy
, int screen
, int min_depth
, int preferred_class
)
584 int xclass
, visclass
= 0;
587 /* First see if the MESA_RGB_VISUAL env var is defined */
588 vis
= get_env_visual( dpy
, screen
, "MESA_RGB_VISUAL" );
592 /* Otherwise, search for a suitable visual */
593 if (preferred_class
==DONT_CARE
) {
594 for (xclass
=0;xclass
<4;xclass
++) {
596 case 0: visclass
= TrueColor
; break;
597 case 1: visclass
= DirectColor
; break;
598 case 2: visclass
= GrayScale
; break;
599 case 3: visclass
= StaticGray
; break;
602 /* start with shallowest */
603 for (depth
=0;depth
<=32;depth
++) {
604 vis
= get_visual( dpy
, screen
, depth
, visclass
);
611 /* start with deepest */
612 for (depth
=32;depth
>=min_depth
;depth
--) {
613 vis
= get_visual( dpy
, screen
, depth
, visclass
);
622 /* search for a specific visual class */
623 switch (preferred_class
) {
624 case GLX_TRUE_COLOR_EXT
: visclass
= TrueColor
; break;
625 case GLX_DIRECT_COLOR_EXT
: visclass
= DirectColor
; break;
626 case GLX_GRAY_SCALE_EXT
: visclass
= GrayScale
; break;
627 case GLX_STATIC_GRAY_EXT
: visclass
= StaticGray
; break;
628 case GLX_PSEUDO_COLOR_EXT
:
629 case GLX_STATIC_COLOR_EXT
:
630 default: return NULL
;
633 /* start with shallowest */
634 for (depth
=0;depth
<=32;depth
++) {
635 vis
= get_visual( dpy
, screen
, depth
, visclass
);
642 /* start with deepest */
643 for (depth
=32;depth
>=min_depth
;depth
--) {
644 vis
= get_visual( dpy
, screen
, depth
, visclass
);
652 /* didn't find a visual */
659 * Find the deepest X over/underlay visual of at least min_depth.
660 * Input: dpy, screen - X display and screen number
661 * level - the over/underlay level
662 * trans_type - transparent pixel type: GLX_NONE_EXT,
663 * GLX_TRANSPARENT_RGB_EXT, GLX_TRANSPARENT_INDEX_EXT,
665 * trans_value - transparent pixel value or DONT_CARE
666 * min_depth - minimum visual depth
667 * preferred_class - preferred GLX visual class or DONT_CARE
668 * Return: pointer to an XVisualInfo or NULL.
671 choose_x_overlay_visual( Display
*dpy
, int scr
,
672 int level
, int trans_type
, int trans_value
,
673 int min_depth
, int preferred_class
)
675 OverlayInfo
*overlay_info
;
676 int numOverlaysPerScreen
;
678 XVisualInfo
*deepvis
;
681 /*DEBUG int tt, tv; */
683 switch (preferred_class
) {
684 case GLX_TRUE_COLOR_EXT
: preferred_class
= TrueColor
; break;
685 case GLX_DIRECT_COLOR_EXT
: preferred_class
= DirectColor
; break;
686 case GLX_PSEUDO_COLOR_EXT
: preferred_class
= PseudoColor
; break;
687 case GLX_STATIC_COLOR_EXT
: preferred_class
= StaticColor
; break;
688 case GLX_GRAY_SCALE_EXT
: preferred_class
= GrayScale
; break;
689 case GLX_STATIC_GRAY_EXT
: preferred_class
= StaticGray
; break;
690 default: preferred_class
= DONT_CARE
;
693 overlay_info
= GetOverlayInfo(dpy
, scr
, &numOverlaysPerScreen
);
698 /* Search for the deepest overlay which satisifies all criteria. */
702 for (i
= 0; i
< numOverlaysPerScreen
; i
++) {
703 const OverlayInfo
*ov
= overlay_info
+ i
;
704 XVisualInfo
*vislist
, vistemplate
;
707 if (ov
->layer
!=level
) {
708 /* failed overlay level criteria */
711 if (!(trans_type
==DONT_CARE
712 || (trans_type
==GLX_TRANSPARENT_INDEX_EXT
713 && ov
->transparent_type
>0)
714 || (trans_type
==GLX_NONE_EXT
&& ov
->transparent_type
==0))) {
715 /* failed transparent pixel type criteria */
718 if (trans_value
!=DONT_CARE
&& trans_value
!=ov
->value
) {
719 /* failed transparent pixel value criteria */
723 /* get XVisualInfo and check the depth */
724 vistemplate
.visualid
= ov
->overlay_visual
;
725 vistemplate
.screen
= scr
;
726 vislist
= XGetVisualInfo( dpy
, VisualIDMask
| VisualScreenMask
,
727 &vistemplate
, &count
);
735 /* something went wrong */
739 if (preferred_class
!=DONT_CARE
&& preferred_class
!=vislist
->CLASS
) {
740 /* wrong visual class */
745 /* Color-index rendering is not supported. Make sure we have True/DirectColor */
746 if (vislist
->CLASS
!= TrueColor
&& vislist
->CLASS
!= DirectColor
) {
751 if (deepvis
!=NULL
&& vislist
->depth
<= deepest
) {
756 /* YES! found a satisfactory visual */
758 deepest
= vislist
->depth
;
760 /* DEBUG tt = ov->transparent_type;*/
761 /* DEBUG tv = ov->value; */
766 printf("chose 0x%x: layer=%d depth=%d trans_type=%d trans_value=%d\n",
767 deepvis->visualid, level, deepvis->depth, tt, tv );
774 /**********************************************************************/
775 /*** Display-related functions ***/
776 /**********************************************************************/
780 * Free all XMesaVisuals which are associated with the given display.
783 destroy_visuals_on_display(Display
*dpy
)
786 for (i
= 0; i
< NumVisuals
; i
++) {
787 if (VisualTable
[i
]->display
== dpy
) {
788 /* remove this visual */
790 XMesaDestroyVisual(VisualTable
[i
]);
791 for (j
= i
; j
< NumVisuals
- 1; j
++)
792 VisualTable
[j
] = VisualTable
[j
+ 1];
800 * Called from XCloseDisplay() to let us free our display-related data.
803 close_display_callback(Display
*dpy
, XExtCodes
*codes
)
805 destroy_visuals_on_display(dpy
);
806 xmesa_destroy_buffers_on_display(dpy
);
812 * Look for the named extension on given display and return a pointer
813 * to the _XExtension data, or NULL if extension not found.
816 lookup_extension(Display
*dpy
, const char *extName
)
819 for (ext
= dpy
->ext_procs
; ext
; ext
= ext
->next
) {
820 if (ext
->name
&& strcmp(ext
->name
, extName
) == 0) {
829 * Whenever we're given a new Display pointer, call this function to
830 * register our close_display_callback function.
833 register_with_display(Display
*dpy
)
835 const char *extName
= "MesaGLX";
838 ext
= lookup_extension(dpy
, extName
);
840 XExtCodes
*c
= XAddExtension(dpy
);
841 ext
= dpy
->ext_procs
; /* new extension is at head of list */
842 assert(c
->extension
== ext
->codes
.extension
);
843 (void) c
; /* silence warning */
844 ext
->name
= strdup(extName
);
845 ext
->close_display
= close_display_callback
;
850 /**********************************************************************/
851 /*** Begin Fake GLX API Functions ***/
852 /**********************************************************************/
856 * Helper used by glXChooseVisual and glXChooseFBConfig.
857 * The fbConfig parameter must be GL_FALSE for the former and GL_TRUE for
859 * In either case, the attribute list is terminated with the value 'None'.
862 choose_visual( Display
*dpy
, int screen
, const int *list
, GLboolean fbConfig
)
864 const GLboolean rgbModeDefault
= fbConfig
;
865 const int *parselist
;
868 int min_red
=0, min_green
=0, min_blue
=0;
869 GLboolean rgb_flag
= rgbModeDefault
;
870 GLboolean alpha_flag
= GL_FALSE
;
871 GLboolean double_flag
= GL_FALSE
;
872 GLboolean stereo_flag
= GL_FALSE
;
873 GLint depth_size
= 0;
874 GLint stencil_size
= 0;
875 GLint accumRedSize
= 0;
876 GLint accumGreenSize
= 0;
877 GLint accumBlueSize
= 0;
878 GLint accumAlphaSize
= 0;
880 int visual_type
= DONT_CARE
;
881 int trans_type
= DONT_CARE
;
882 int trans_value
= DONT_CARE
;
883 GLint caveat
= DONT_CARE
;
884 XMesaVisual xmvis
= NULL
;
885 int desiredVisualID
= -1;
893 parselist
[1] == GLX_DONT_CARE
&&
894 parselist
[0] != GLX_LEVEL
) {
895 /* For glXChooseFBConfig(), skip attributes whose value is
896 * GLX_DONT_CARE (-1), unless it's GLX_LEVEL (which can legitimately be
899 * From page 17 (23 of the pdf) of the GLX 1.4 spec:
900 * GLX DONT CARE may be specified for all attributes except GLX LEVEL.
906 switch (*parselist
) {
917 case GLX_BUFFER_SIZE
:
919 min_ci
= *parselist
++;
923 level
= *parselist
++;
935 case GLX_DOUBLEBUFFER
:
938 double_flag
= *parselist
++;
941 double_flag
= GL_TRUE
;
947 stereo_flag
= *parselist
++;
950 stereo_flag
= GL_TRUE
;
953 case GLX_AUX_BUFFERS
:
955 numAux
= *parselist
++;
956 if (numAux
> MAX_AUX_BUFFERS
)
961 min_red
= *parselist
++;
965 min_green
= *parselist
++;
969 min_blue
= *parselist
++;
974 GLint size
= *parselist
++;
975 alpha_flag
= size
? GL_TRUE
: GL_FALSE
;
980 depth_size
= *parselist
++;
982 case GLX_STENCIL_SIZE
:
984 stencil_size
= *parselist
++;
986 case GLX_ACCUM_RED_SIZE
:
989 GLint size
= *parselist
++;
990 accumRedSize
= MAX2( accumRedSize
, size
);
993 case GLX_ACCUM_GREEN_SIZE
:
996 GLint size
= *parselist
++;
997 accumGreenSize
= MAX2( accumGreenSize
, size
);
1000 case GLX_ACCUM_BLUE_SIZE
:
1003 GLint size
= *parselist
++;
1004 accumBlueSize
= MAX2( accumBlueSize
, size
);
1007 case GLX_ACCUM_ALPHA_SIZE
:
1010 GLint size
= *parselist
++;
1011 accumAlphaSize
= MAX2( accumAlphaSize
, size
);
1016 * GLX_EXT_visual_info extension
1018 case GLX_X_VISUAL_TYPE_EXT
:
1020 visual_type
= *parselist
++;
1022 case GLX_TRANSPARENT_TYPE_EXT
:
1024 trans_type
= *parselist
++;
1026 case GLX_TRANSPARENT_INDEX_VALUE_EXT
:
1028 trans_value
= *parselist
++;
1030 case GLX_TRANSPARENT_RED_VALUE_EXT
:
1031 case GLX_TRANSPARENT_GREEN_VALUE_EXT
:
1032 case GLX_TRANSPARENT_BLUE_VALUE_EXT
:
1033 case GLX_TRANSPARENT_ALPHA_VALUE_EXT
:
1040 * GLX_EXT_visual_info extension
1042 case GLX_VISUAL_CAVEAT_EXT
:
1044 caveat
= *parselist
++; /* ignored for now */
1048 * GLX_ARB_multisample
1050 case GLX_SAMPLE_BUFFERS_ARB
:
1051 case GLX_SAMPLES_ARB
:
1053 if (*parselist
++ != 0)
1054 /* ms not supported */
1061 case GLX_RENDER_TYPE
:
1065 if (*parselist
& GLX_RGBA_BIT
) {
1068 else if (*parselist
& GLX_COLOR_INDEX_BIT
) {
1069 rgb_flag
= GL_FALSE
;
1071 else if (*parselist
& (GLX_RGBA_FLOAT_BIT_ARB
|GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT
)) {
1074 else if (*parselist
== 0) {
1079 case GLX_DRAWABLE_TYPE
:
1083 if (*parselist
& ~(GLX_WINDOW_BIT
| GLX_PIXMAP_BIT
| GLX_PBUFFER_BIT
)) {
1084 return NULL
; /* bad bit */
1088 case GLX_FBCONFIG_ID
:
1093 desiredVisualID
= *parselist
++;
1095 case GLX_X_RENDERABLE
:
1096 case GLX_MAX_PBUFFER_WIDTH
:
1097 case GLX_MAX_PBUFFER_HEIGHT
:
1098 case GLX_MAX_PBUFFER_PIXELS
:
1105 #ifdef GLX_EXT_texture_from_pixmap
1106 case GLX_BIND_TO_TEXTURE_RGB_EXT
:
1107 parselist
++; /*skip*/
1109 case GLX_BIND_TO_TEXTURE_RGBA_EXT
:
1110 parselist
++; /*skip*/
1112 case GLX_BIND_TO_MIPMAP_TEXTURE_EXT
:
1113 parselist
++; /*skip*/
1115 case GLX_BIND_TO_TEXTURE_TARGETS_EXT
:
1117 if (*parselist
& ~(GLX_TEXTURE_1D_BIT_EXT
|
1118 GLX_TEXTURE_2D_BIT_EXT
|
1119 GLX_TEXTURE_RECTANGLE_BIT_EXT
)) {
1124 case GLX_Y_INVERTED_EXT
:
1125 parselist
++; /*skip*/
1134 /* undefined attribute */
1135 _mesa_warning(NULL
, "unexpected attrib 0x%x in choose_visual()",
1148 * Since we're only simulating the GLX extension this function will never
1149 * find any real GL visuals. Instead, all we can do is try to find an RGB
1150 * or CI visual of appropriate depth. Other requested attributes such as
1151 * double buffering, depth buffer, etc. will be associated with the X
1152 * visual and stored in the VisualTable[].
1154 if (desiredVisualID
!= -1) {
1155 /* try to get a specific visual, by visualID */
1158 temp
.visualid
= desiredVisualID
;
1159 temp
.screen
= screen
;
1160 vis
= XGetVisualInfo(dpy
, VisualIDMask
| VisualScreenMask
, &temp
, &n
);
1162 /* give the visual some useful GLX attributes */
1163 double_flag
= GL_TRUE
;
1164 if (vis
->depth
<= 8)
1166 depth_size
= default_depth_bits();
1173 int min_rgb
= min_red
+ min_green
+ min_blue
;
1174 if (min_rgb
>1 && min_rgb
<8) {
1175 /* a special case to be sure we can get a monochrome visual */
1180 vis
= choose_x_visual(dpy
, screen
, min_rgb
, visual_type
);
1183 vis
= choose_x_overlay_visual(dpy
, screen
, level
,
1184 trans_type
, trans_value
, min_rgb
, visual_type
);
1189 /* Note: we're not exactly obeying the glXChooseVisual rules here.
1190 * When GLX_DEPTH_SIZE = 1 is specified we're supposed to choose the
1191 * largest depth buffer size, which is 32bits/value. Instead, we
1192 * return 16 to maintain performance with earlier versions of Mesa.
1194 if (depth_size
> 24)
1196 else if (depth_size
> 16)
1198 else if (depth_size
> 0) {
1199 depth_size
= default_depth_bits();
1203 alpha_flag
= default_alpha_bits() > 0;
1206 /* we only support one size of stencil and accum buffers. */
1207 if (stencil_size
> 0)
1209 if (accumRedSize
> 0 || accumGreenSize
> 0 || accumBlueSize
> 0 ||
1210 accumAlphaSize
> 0) {
1213 accumBlueSize
= default_accum_bits();
1214 accumAlphaSize
= alpha_flag
? accumRedSize
: 0;
1217 xmvis
= save_glx_visual( dpy
, vis
, alpha_flag
, double_flag
,
1218 stereo_flag
, depth_size
, stencil_size
,
1219 accumRedSize
, accumGreenSize
,
1220 accumBlueSize
, accumAlphaSize
, level
, numAux
);
1228 static XVisualInfo
*
1229 Fake_glXChooseVisual( Display
*dpy
, int screen
, int *list
)
1233 /* register ourselves as an extension on this display */
1234 register_with_display(dpy
);
1236 xmvis
= choose_visual(dpy
, screen
, list
, GL_FALSE
);
1238 XVisualInfo
* visinfo
= malloc(sizeof(XVisualInfo
));
1240 memcpy(visinfo
, xmvis
->visinfo
, sizeof(XVisualInfo
));
1250 Fake_glXCreateContext( Display
*dpy
, XVisualInfo
*visinfo
,
1251 GLXContext share_list
, Bool direct
)
1254 XMesaContext xmesaCtx
;
1256 if (!dpy
|| !visinfo
)
1259 /* deallocate unused windows/buffers */
1261 XMesaGarbageCollect(dpy
);
1264 xmvis
= find_glx_visual( dpy
, visinfo
);
1266 /* This visual wasn't found with glXChooseVisual() */
1267 xmvis
= create_glx_visual( dpy
, visinfo
);
1273 xmesaCtx
= XMesaCreateContext(xmvis
, (XMesaContext
) share_list
);
1275 return (GLXContext
) xmesaCtx
;
1279 /* XXX these may have to be removed due to thread-safety issues. */
1280 static GLXContext MakeCurrent_PrevContext
= 0;
1281 static GLXDrawable MakeCurrent_PrevDrawable
= 0;
1282 static GLXDrawable MakeCurrent_PrevReadable
= 0;
1283 static XMesaBuffer MakeCurrent_PrevDrawBuffer
= 0;
1284 static XMesaBuffer MakeCurrent_PrevReadBuffer
= 0;
1287 /* GLX 1.3 and later */
1289 Fake_glXMakeContextCurrent( Display
*dpy
, GLXDrawable draw
,
1290 GLXDrawable read
, GLXContext ctx
)
1292 if (ctx
&& draw
&& read
) {
1293 XMesaBuffer drawBuffer
, readBuffer
;
1294 XMesaContext xmctx
= (XMesaContext
) ctx
;
1296 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'draw' */
1297 if (ctx
== MakeCurrent_PrevContext
1298 && draw
== MakeCurrent_PrevDrawable
) {
1299 drawBuffer
= MakeCurrent_PrevDrawBuffer
;
1302 drawBuffer
= XMesaFindBuffer( dpy
, draw
);
1305 /* drawable must be a new window! */
1306 drawBuffer
= XMesaCreateWindowBuffer( xmctx
->xm_visual
, draw
);
1308 /* Out of memory, or context/drawable depth mismatch */
1313 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */
1314 if (ctx
== MakeCurrent_PrevContext
1315 && read
== MakeCurrent_PrevReadable
) {
1316 readBuffer
= MakeCurrent_PrevReadBuffer
;
1319 readBuffer
= XMesaFindBuffer( dpy
, read
);
1322 /* drawable must be a new window! */
1323 readBuffer
= XMesaCreateWindowBuffer( xmctx
->xm_visual
, read
);
1325 /* Out of memory, or context/drawable depth mismatch */
1330 MakeCurrent_PrevContext
= ctx
;
1331 MakeCurrent_PrevDrawable
= draw
;
1332 MakeCurrent_PrevReadable
= read
;
1333 MakeCurrent_PrevDrawBuffer
= drawBuffer
;
1334 MakeCurrent_PrevReadBuffer
= readBuffer
;
1336 /* Now make current! */
1337 return XMesaMakeCurrent2(xmctx
, drawBuffer
, readBuffer
);
1339 else if (!ctx
&& !draw
&& !read
) {
1340 /* release current context w/out assigning new one. */
1341 XMesaMakeCurrent( NULL
, NULL
);
1342 MakeCurrent_PrevContext
= 0;
1343 MakeCurrent_PrevDrawable
= 0;
1344 MakeCurrent_PrevReadable
= 0;
1345 MakeCurrent_PrevDrawBuffer
= 0;
1346 MakeCurrent_PrevReadBuffer
= 0;
1350 /* The args must either all be non-zero or all zero.
1359 Fake_glXMakeCurrent( Display
*dpy
, GLXDrawable drawable
, GLXContext ctx
)
1361 return Fake_glXMakeContextCurrent( dpy
, drawable
, drawable
, ctx
);
1366 Fake_glXCreateGLXPixmap( Display
*dpy
, XVisualInfo
*visinfo
, Pixmap pixmap
)
1371 v
= find_glx_visual( dpy
, visinfo
);
1373 v
= create_glx_visual( dpy
, visinfo
);
1375 /* unusable visual */
1380 b
= XMesaCreatePixmapBuffer( v
, pixmap
, 0 );
1384 return b
->frontxrb
->pixmap
;
1388 /*** GLX_MESA_pixmap_colormap ***/
1391 Fake_glXCreateGLXPixmapMESA( Display
*dpy
, XVisualInfo
*visinfo
,
1392 Pixmap pixmap
, Colormap cmap
)
1397 v
= find_glx_visual( dpy
, visinfo
);
1399 v
= create_glx_visual( dpy
, visinfo
);
1401 /* unusable visual */
1406 b
= XMesaCreatePixmapBuffer( v
, pixmap
, cmap
);
1410 return b
->frontxrb
->pixmap
;
1415 Fake_glXDestroyGLXPixmap( Display
*dpy
, GLXPixmap pixmap
)
1417 XMesaBuffer b
= XMesaFindBuffer(dpy
, pixmap
);
1419 XMesaDestroyBuffer(b
);
1421 else if (getenv("MESA_DEBUG")) {
1422 _mesa_warning(NULL
, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n");
1428 Fake_glXCopyContext( Display
*dpy
, GLXContext src
, GLXContext dst
,
1429 unsigned long mask
)
1431 XMesaContext xmSrc
= (XMesaContext
) src
;
1432 XMesaContext xmDst
= (XMesaContext
) dst
;
1434 if (MakeCurrent_PrevContext
== src
) {
1437 _mesa_copy_context( &xmSrc
->mesa
, &xmDst
->mesa
, (GLuint
) mask
);
1442 Fake_glXQueryExtension( Display
*dpy
, int *errorBase
, int *eventBase
)
1445 /* Mesa's GLX isn't really an X extension but we try to act like one. */
1446 if (!XQueryExtension(dpy
, GLX_EXTENSION_NAME
, &op
, &ev
, &err
))
1452 return True
; /* we're faking GLX so always return success */
1456 extern void _kw_ungrab_all( Display
*dpy
);
1457 void _kw_ungrab_all( Display
*dpy
)
1459 XUngrabPointer( dpy
, CurrentTime
);
1460 XUngrabKeyboard( dpy
, CurrentTime
);
1465 Fake_glXDestroyContext( Display
*dpy
, GLXContext ctx
)
1469 MakeCurrent_PrevContext
= 0;
1470 MakeCurrent_PrevDrawable
= 0;
1471 MakeCurrent_PrevReadable
= 0;
1472 MakeCurrent_PrevDrawBuffer
= 0;
1473 MakeCurrent_PrevReadBuffer
= 0;
1474 XMesaDestroyContext((XMesaContext
) ctx
);
1475 XMesaGarbageCollect(dpy
);
1481 Fake_glXIsDirect( Display
*dpy
, GLXContext ctx
)
1483 XMesaContext xmCtx
= (XMesaContext
) ctx
;
1484 return xmCtx
? xmCtx
->direct
: False
;
1490 Fake_glXSwapBuffers( Display
*dpy
, GLXDrawable drawable
)
1492 XMesaBuffer buffer
= XMesaFindBuffer( dpy
, drawable
);
1495 XMesaSwapBuffers(buffer
);
1497 else if (getenv("MESA_DEBUG")) {
1498 _mesa_warning(NULL
, "glXSwapBuffers: invalid drawable 0x%x\n",
1505 /*** GLX_MESA_copy_sub_buffer ***/
1508 Fake_glXCopySubBufferMESA( Display
*dpy
, GLXDrawable drawable
,
1509 int x
, int y
, int width
, int height
)
1511 XMesaBuffer buffer
= XMesaFindBuffer( dpy
, drawable
);
1513 XMesaCopySubBuffer(buffer
, x
, y
, width
, height
);
1515 else if (getenv("MESA_DEBUG")) {
1516 _mesa_warning(NULL
, "Mesa: glXCopySubBufferMESA: invalid drawable\n");
1522 Fake_glXQueryVersion( Display
*dpy
, int *maj
, int *min
)
1525 /* Return GLX version, not Mesa version */
1526 assert(CLIENT_MAJOR_VERSION
== SERVER_MAJOR_VERSION
);
1527 *maj
= CLIENT_MAJOR_VERSION
;
1528 *min
= MIN2( CLIENT_MINOR_VERSION
, SERVER_MINOR_VERSION
);
1534 * Query the GLX attributes of the given XVisualInfo.
1537 get_config( XMesaVisual xmvis
, int attrib
, int *value
, GLboolean fbconfig
)
1543 return GLX_BAD_ATTRIBUTE
;
1544 *value
= (int) True
;
1546 case GLX_BUFFER_SIZE
:
1547 *value
= xmvis
->visinfo
->depth
;
1550 *value
= xmvis
->mesa_visual
.level
;
1554 return GLX_BAD_ATTRIBUTE
;
1555 if (xmvis
->mesa_visual
.rgbMode
) {
1562 case GLX_DOUBLEBUFFER
:
1563 *value
= (int) xmvis
->mesa_visual
.doubleBufferMode
;
1566 *value
= (int) xmvis
->mesa_visual
.stereoMode
;
1568 case GLX_AUX_BUFFERS
:
1569 *value
= xmvis
->mesa_visual
.numAuxBuffers
;
1572 *value
= xmvis
->mesa_visual
.redBits
;
1574 case GLX_GREEN_SIZE
:
1575 *value
= xmvis
->mesa_visual
.greenBits
;
1578 *value
= xmvis
->mesa_visual
.blueBits
;
1580 case GLX_ALPHA_SIZE
:
1581 *value
= xmvis
->mesa_visual
.alphaBits
;
1583 case GLX_DEPTH_SIZE
:
1584 *value
= xmvis
->mesa_visual
.depthBits
;
1586 case GLX_STENCIL_SIZE
:
1587 *value
= xmvis
->mesa_visual
.stencilBits
;
1589 case GLX_ACCUM_RED_SIZE
:
1590 *value
= xmvis
->mesa_visual
.accumRedBits
;
1592 case GLX_ACCUM_GREEN_SIZE
:
1593 *value
= xmvis
->mesa_visual
.accumGreenBits
;
1595 case GLX_ACCUM_BLUE_SIZE
:
1596 *value
= xmvis
->mesa_visual
.accumBlueBits
;
1598 case GLX_ACCUM_ALPHA_SIZE
:
1599 *value
= xmvis
->mesa_visual
.accumAlphaBits
;
1603 * GLX_EXT_visual_info extension
1605 case GLX_X_VISUAL_TYPE_EXT
:
1606 switch (xmvis
->visinfo
->CLASS
) {
1607 case StaticGray
: *value
= GLX_STATIC_GRAY_EXT
; return 0;
1608 case GrayScale
: *value
= GLX_GRAY_SCALE_EXT
; return 0;
1609 case StaticColor
: *value
= GLX_STATIC_GRAY_EXT
; return 0;
1610 case PseudoColor
: *value
= GLX_PSEUDO_COLOR_EXT
; return 0;
1611 case TrueColor
: *value
= GLX_TRUE_COLOR_EXT
; return 0;
1612 case DirectColor
: *value
= GLX_DIRECT_COLOR_EXT
; return 0;
1615 case GLX_TRANSPARENT_TYPE_EXT
:
1616 if (xmvis
->mesa_visual
.level
==0) {
1618 *value
= GLX_NONE_EXT
;
1620 else if (xmvis
->mesa_visual
.level
>0) {
1622 if (xmvis
->mesa_visual
.rgbMode
) {
1623 *value
= GLX_TRANSPARENT_RGB_EXT
;
1626 *value
= GLX_TRANSPARENT_INDEX_EXT
;
1629 else if (xmvis
->mesa_visual
.level
<0) {
1631 *value
= GLX_NONE_EXT
;
1634 case GLX_TRANSPARENT_INDEX_VALUE_EXT
:
1636 int pixel
= transparent_pixel( xmvis
);
1640 /* else undefined */
1643 case GLX_TRANSPARENT_RED_VALUE_EXT
:
1646 case GLX_TRANSPARENT_GREEN_VALUE_EXT
:
1649 case GLX_TRANSPARENT_BLUE_VALUE_EXT
:
1652 case GLX_TRANSPARENT_ALPHA_VALUE_EXT
:
1657 * GLX_EXT_visual_info extension
1659 case GLX_VISUAL_CAVEAT_EXT
:
1660 /* test for zero, just in case */
1661 if (xmvis
->mesa_visual
.visualRating
> 0)
1662 *value
= xmvis
->mesa_visual
.visualRating
;
1664 *value
= GLX_NONE_EXT
;
1668 * GLX_ARB_multisample
1670 case GLX_SAMPLE_BUFFERS_ARB
:
1673 case GLX_SAMPLES_ARB
:
1680 case GLX_SCREEN_EXT
:
1682 return GLX_BAD_ATTRIBUTE
;
1683 *value
= xmvis
->visinfo
->screen
;
1685 case GLX_DRAWABLE_TYPE
: /*SGIX too */
1687 return GLX_BAD_ATTRIBUTE
;
1688 *value
= GLX_WINDOW_BIT
| GLX_PIXMAP_BIT
| GLX_PBUFFER_BIT
;
1690 case GLX_RENDER_TYPE_SGIX
:
1692 return GLX_BAD_ATTRIBUTE
;
1693 if (xmvis
->mesa_visual
.floatMode
)
1694 *value
= GLX_RGBA_FLOAT_BIT_ARB
;
1695 else if (xmvis
->mesa_visual
.rgbMode
)
1696 *value
= GLX_RGBA_BIT
;
1698 *value
= GLX_COLOR_INDEX_BIT
;
1700 case GLX_X_RENDERABLE_SGIX
:
1702 return GLX_BAD_ATTRIBUTE
;
1703 *value
= True
; /* XXX really? */
1705 case GLX_FBCONFIG_ID_SGIX
:
1707 return GLX_BAD_ATTRIBUTE
;
1708 *value
= xmvis
->visinfo
->visualid
;
1710 case GLX_MAX_PBUFFER_WIDTH
:
1712 return GLX_BAD_ATTRIBUTE
;
1713 /* XXX should be same as ctx->Const.MaxRenderbufferSize */
1714 *value
= DisplayWidth(xmvis
->display
, xmvis
->visinfo
->screen
);
1716 case GLX_MAX_PBUFFER_HEIGHT
:
1718 return GLX_BAD_ATTRIBUTE
;
1719 *value
= DisplayHeight(xmvis
->display
, xmvis
->visinfo
->screen
);
1721 case GLX_MAX_PBUFFER_PIXELS
:
1723 return GLX_BAD_ATTRIBUTE
;
1724 *value
= DisplayWidth(xmvis
->display
, xmvis
->visinfo
->screen
) *
1725 DisplayHeight(xmvis
->display
, xmvis
->visinfo
->screen
);
1729 return GLX_BAD_ATTRIBUTE
;
1730 *value
= xmvis
->visinfo
->visualid
;
1733 #ifdef GLX_EXT_texture_from_pixmap
1734 case GLX_BIND_TO_TEXTURE_RGB_EXT
:
1735 *value
= True
; /*XXX*/
1737 case GLX_BIND_TO_TEXTURE_RGBA_EXT
:
1739 *value
= xmvis
->mesa_visual
.alphaBits
> 0 ? True
: False
;
1741 case GLX_BIND_TO_MIPMAP_TEXTURE_EXT
:
1742 *value
= True
; /*XXX*/
1744 case GLX_BIND_TO_TEXTURE_TARGETS_EXT
:
1745 *value
= (GLX_TEXTURE_1D_BIT_EXT
|
1746 GLX_TEXTURE_2D_BIT_EXT
|
1747 GLX_TEXTURE_RECTANGLE_BIT_EXT
); /*XXX*/
1749 case GLX_Y_INVERTED_EXT
:
1750 *value
= True
; /*XXX*/
1755 return GLX_BAD_ATTRIBUTE
;
1762 Fake_glXGetConfig( Display
*dpy
, XVisualInfo
*visinfo
,
1763 int attrib
, int *value
)
1767 if (!dpy
|| !visinfo
)
1768 return GLX_BAD_ATTRIBUTE
;
1770 xmvis
= find_glx_visual( dpy
, visinfo
);
1772 /* this visual wasn't obtained with glXChooseVisual */
1773 xmvis
= create_glx_visual( dpy
, visinfo
);
1775 /* this visual can't be used for GL rendering */
1776 if (attrib
==GLX_USE_GL
) {
1777 *value
= (int) False
;
1781 return GLX_BAD_VISUAL
;
1786 k
= get_config(xmvis
, attrib
, value
, GL_FALSE
);
1792 Fake_glXGetCurrentContext(void)
1794 XMesaContext xmesa
= XMesaGetCurrentContext();
1795 return (GLXContext
) xmesa
;
1799 Fake_glXWaitGL( void )
1801 XMesaContext xmesa
= XMesaGetCurrentContext();
1802 XMesaFlush( xmesa
);
1808 Fake_glXWaitX( void )
1810 XMesaContext xmesa
= XMesaGetCurrentContext();
1811 XMesaFlush( xmesa
);
1816 get_extensions( void )
1818 return EXTENSIONS
+ 23; /* skip "GLX_MESA_set_3dfx_mode" */
1823 /* GLX 1.1 and later */
1825 Fake_glXQueryExtensionsString( Display
*dpy
, int screen
)
1829 return get_extensions();
1834 /* GLX 1.1 and later */
1836 Fake_glXQueryServerString( Display
*dpy
, int screen
, int name
)
1838 static char version
[1000];
1839 sprintf(version
, "%d.%d %s",
1840 SERVER_MAJOR_VERSION
, SERVER_MINOR_VERSION
, MESA_GLX_VERSION
);
1846 case GLX_EXTENSIONS
:
1847 return get_extensions();
1859 /* GLX 1.1 and later */
1861 Fake_glXGetClientString( Display
*dpy
, int name
)
1863 static char version
[1000];
1864 sprintf(version
, "%d.%d %s", CLIENT_MAJOR_VERSION
,
1865 CLIENT_MINOR_VERSION
, MESA_GLX_VERSION
);
1870 case GLX_EXTENSIONS
:
1871 return get_extensions();
1889 Fake_glXGetFBConfigAttrib( Display
*dpy
, GLXFBConfig config
,
1890 int attribute
, int *value
)
1892 XMesaVisual v
= (XMesaVisual
) config
;
1896 if (!dpy
|| !config
|| !value
)
1899 return get_config(v
, attribute
, value
, GL_TRUE
);
1903 static GLXFBConfig
*
1904 Fake_glXGetFBConfigs( Display
*dpy
, int screen
, int *nelements
)
1906 XVisualInfo
*visuals
, visTemplate
;
1907 const long visMask
= VisualScreenMask
;
1910 /* Get list of all X visuals */
1911 visTemplate
.screen
= screen
;
1912 visuals
= XGetVisualInfo(dpy
, visMask
, &visTemplate
, nelements
);
1913 if (*nelements
> 0) {
1914 XMesaVisual
*results
;
1915 results
= malloc(*nelements
* sizeof(XMesaVisual
));
1920 for (i
= 0; i
< *nelements
; i
++) {
1921 results
[i
] = create_glx_visual(dpy
, visuals
+ i
);
1924 return (GLXFBConfig
*) results
;
1930 static GLXFBConfig
*
1931 Fake_glXChooseFBConfig( Display
*dpy
, int screen
,
1932 const int *attribList
, int *nitems
)
1936 /* register ourselves as an extension on this display */
1937 register_with_display(dpy
);
1939 if (!attribList
|| !attribList
[0]) {
1940 /* return list of all configs (per GLX_SGIX_fbconfig spec) */
1941 return Fake_glXGetFBConfigs(dpy
, screen
, nitems
);
1944 xmvis
= choose_visual(dpy
, screen
, attribList
, GL_TRUE
);
1946 GLXFBConfig
*config
= malloc(sizeof(XMesaVisual
));
1952 config
[0] = (GLXFBConfig
) xmvis
;
1953 return (GLXFBConfig
*) config
;
1962 static XVisualInfo
*
1963 Fake_glXGetVisualFromFBConfig( Display
*dpy
, GLXFBConfig config
)
1965 if (dpy
&& config
) {
1966 XMesaVisual xmvis
= (XMesaVisual
) config
;
1967 XVisualInfo
* visinfo
= malloc(sizeof(XVisualInfo
));
1969 memcpy(visinfo
, xmvis
->visinfo
, sizeof(XVisualInfo
));
1980 Fake_glXCreateWindow( Display
*dpy
, GLXFBConfig config
, Window win
,
1981 const int *attribList
)
1983 XMesaVisual xmvis
= (XMesaVisual
) config
;
1988 xmbuf
= XMesaCreateWindowBuffer(xmvis
, win
);
1993 (void) attribList
; /* Ignored in GLX 1.3 */
1995 return win
; /* A hack for now */
2000 Fake_glXDestroyWindow( Display
*dpy
, GLXWindow window
)
2002 XMesaBuffer b
= XMesaFindBuffer(dpy
, (XMesaDrawable
) window
);
2004 XMesaDestroyBuffer(b
);
2005 /* don't destroy X window */
2011 Fake_glXCreatePixmap( Display
*dpy
, GLXFBConfig config
, Pixmap pixmap
,
2012 const int *attribList
)
2014 XMesaVisual v
= (XMesaVisual
) config
;
2017 int target
= 0, format
= 0, mipmap
= 0;
2020 if (!dpy
|| !config
|| !pixmap
)
2023 for (attr
= attribList
; attr
&& *attr
; attr
++) {
2025 case GLX_TEXTURE_FORMAT_EXT
:
2028 case GLX_TEXTURE_FORMAT_NONE_EXT
:
2029 case GLX_TEXTURE_FORMAT_RGB_EXT
:
2030 case GLX_TEXTURE_FORMAT_RGBA_EXT
:
2038 case GLX_TEXTURE_TARGET_EXT
:
2041 case GLX_TEXTURE_1D_EXT
:
2042 case GLX_TEXTURE_2D_EXT
:
2043 case GLX_TEXTURE_RECTANGLE_EXT
:
2051 case GLX_MIPMAP_TEXTURE_EXT
:
2062 if (format
== GLX_TEXTURE_FORMAT_RGB_EXT
) {
2063 if (get_config(v
, GLX_BIND_TO_TEXTURE_RGB_EXT
,
2064 &value
, GL_TRUE
) != Success
2066 return 0; /* error! */
2069 else if (format
== GLX_TEXTURE_FORMAT_RGBA_EXT
) {
2070 if (get_config(v
, GLX_BIND_TO_TEXTURE_RGBA_EXT
,
2071 &value
, GL_TRUE
) != Success
2073 return 0; /* error! */
2077 if (get_config(v
, GLX_BIND_TO_MIPMAP_TEXTURE_EXT
,
2078 &value
, GL_TRUE
) != Success
2080 return 0; /* error! */
2083 if (target
== GLX_TEXTURE_1D_EXT
) {
2084 if (get_config(v
, GLX_BIND_TO_TEXTURE_TARGETS_EXT
,
2085 &value
, GL_TRUE
) != Success
2086 || (value
& GLX_TEXTURE_1D_BIT_EXT
) == 0) {
2087 return 0; /* error! */
2090 else if (target
== GLX_TEXTURE_2D_EXT
) {
2091 if (get_config(v
, GLX_BIND_TO_TEXTURE_TARGETS_EXT
,
2092 &value
, GL_TRUE
) != Success
2093 || (value
& GLX_TEXTURE_2D_BIT_EXT
) == 0) {
2094 return 0; /* error! */
2097 if (target
== GLX_TEXTURE_RECTANGLE_EXT
) {
2098 if (get_config(v
, GLX_BIND_TO_TEXTURE_TARGETS_EXT
,
2099 &value
, GL_TRUE
) != Success
2100 || (value
& GLX_TEXTURE_RECTANGLE_BIT_EXT
) == 0) {
2101 return 0; /* error! */
2105 if (format
|| target
|| mipmap
) {
2106 /* texture from pixmap */
2107 b
= XMesaCreatePixmapTextureBuffer(v
, pixmap
, 0, format
, target
, mipmap
);
2110 b
= XMesaCreatePixmapBuffer( v
, pixmap
, 0 );
2121 Fake_glXDestroyPixmap( Display
*dpy
, GLXPixmap pixmap
)
2123 XMesaBuffer b
= XMesaFindBuffer(dpy
, (XMesaDrawable
)pixmap
);
2125 XMesaDestroyBuffer(b
);
2126 /* don't destroy X pixmap */
2131 Fake_glXCreatePbuffer( Display
*dpy
, GLXFBConfig config
,
2132 const int *attribList
)
2134 XMesaVisual xmvis
= (XMesaVisual
) config
;
2137 int width
= 0, height
= 0;
2138 GLboolean useLargest
= GL_FALSE
, preserveContents
= GL_FALSE
;
2142 for (attrib
= attribList
; *attrib
; attrib
++) {
2144 case GLX_PBUFFER_WIDTH
:
2148 case GLX_PBUFFER_HEIGHT
:
2152 case GLX_PRESERVED_CONTENTS
:
2154 preserveContents
= *attrib
;
2156 case GLX_LARGEST_PBUFFER
:
2158 useLargest
= *attrib
;
2165 if (width
== 0 || height
== 0)
2168 if (width
> SWRAST_MAX_WIDTH
|| height
> SWRAST_MAX_HEIGHT
) {
2169 /* If allocation would have failed and GLX_LARGEST_PBUFFER is set,
2170 * allocate the largest possible buffer.
2173 width
= SWRAST_MAX_WIDTH
;
2174 height
= SWRAST_MAX_HEIGHT
;
2178 xmbuf
= XMesaCreatePBuffer( xmvis
, 0, width
, height
);
2179 /* A GLXPbuffer handle must be an X Drawable because that's what
2180 * glXMakeCurrent takes.
2183 xmbuf
->largestPbuffer
= useLargest
;
2184 xmbuf
->preservedContents
= preserveContents
;
2185 return (GLXPbuffer
) xmbuf
->frontxrb
->pixmap
;
2194 Fake_glXDestroyPbuffer( Display
*dpy
, GLXPbuffer pbuf
)
2196 XMesaBuffer b
= XMesaFindBuffer(dpy
, pbuf
);
2198 XMesaDestroyBuffer(b
);
2204 Fake_glXQueryDrawable( Display
*dpy
, GLXDrawable draw
, int attribute
,
2205 unsigned int *value
)
2207 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, draw
);
2211 /* make sure buffer's dimensions are up to date */
2212 xmesa_check_and_update_buffer_size(NULL
, xmbuf
);
2214 switch (attribute
) {
2216 *value
= xmbuf
->mesa_buffer
.Width
;
2219 *value
= xmbuf
->mesa_buffer
.Height
;
2221 case GLX_PRESERVED_CONTENTS
:
2222 *value
= xmbuf
->preservedContents
;
2224 case GLX_LARGEST_PBUFFER
:
2225 *value
= xmbuf
->largestPbuffer
;
2227 case GLX_FBCONFIG_ID
:
2228 *value
= xmbuf
->xm_visual
->visinfo
->visualid
;
2230 #ifdef GLX_EXT_texture_from_pixmap
2231 case GLX_TEXTURE_FORMAT_EXT
:
2232 *value
= xmbuf
->TextureFormat
;
2234 case GLX_TEXTURE_TARGET_EXT
:
2235 *value
= xmbuf
->TextureTarget
;
2237 case GLX_MIPMAP_TEXTURE_EXT
:
2238 *value
= xmbuf
->TextureMipmap
;
2243 return; /* raise BadValue error */
2249 Fake_glXCreateNewContext( Display
*dpy
, GLXFBConfig config
,
2250 int renderType
, GLXContext shareList
, Bool direct
)
2253 XMesaVisual xmvis
= (XMesaVisual
) config
;
2255 if (!dpy
|| !config
||
2256 (renderType
!= GLX_RGBA_TYPE
&&
2257 renderType
!= GLX_COLOR_INDEX_TYPE
&&
2258 renderType
!= GLX_RGBA_FLOAT_TYPE_ARB
&&
2259 renderType
!= GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT
))
2262 /* deallocate unused windows/buffers */
2263 XMesaGarbageCollect(dpy
);
2265 xmCtx
= XMesaCreateContext(xmvis
, (XMesaContext
) shareList
);
2267 return (GLXContext
) xmCtx
;
2272 Fake_glXQueryContext( Display
*dpy
, GLXContext ctx
, int attribute
, int *value
)
2274 XMesaContext xmctx
= (XMesaContext
) ctx
;
2278 switch (attribute
) {
2279 case GLX_FBCONFIG_ID
:
2280 *value
= xmctx
->xm_visual
->visinfo
->visualid
;
2282 case GLX_RENDER_TYPE
:
2283 *value
= GLX_RGBA_TYPE
;
2289 return GLX_BAD_ATTRIBUTE
;
2296 Fake_glXSelectEvent( Display
*dpy
, GLXDrawable drawable
, unsigned long mask
)
2298 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2300 xmbuf
->selectedEvents
= mask
;
2305 Fake_glXGetSelectedEvent( Display
*dpy
, GLXDrawable drawable
,
2306 unsigned long *mask
)
2308 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2310 *mask
= xmbuf
->selectedEvents
;
2317 /*** GLX_SGI_swap_control ***/
2320 Fake_glXSwapIntervalSGI(int interval
)
2328 /*** GLX_SGI_video_sync ***/
2330 static unsigned int FrameCounter
= 0;
2333 Fake_glXGetVideoSyncSGI(unsigned int *count
)
2335 /* this is a bogus implementation */
2336 *count
= FrameCounter
++;
2341 Fake_glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
2343 if (divisor
<= 0 || remainder
< 0)
2344 return GLX_BAD_VALUE
;
2345 /* this is a bogus implementation */
2347 while (FrameCounter
% divisor
!= remainder
)
2349 *count
= FrameCounter
;
2355 /*** GLX_SGI_make_current_read ***/
2358 Fake_glXMakeCurrentReadSGI(Display
*dpy
, GLXDrawable draw
, GLXDrawable read
, GLXContext ctx
)
2360 return Fake_glXMakeContextCurrent( dpy
, draw
, read
, ctx
);
2365 Fake_glXGetCurrentReadDrawableSGI(void)
2372 /*** GLX_SGIX_video_source ***/
2375 static GLXVideoSourceSGIX
2376 Fake_glXCreateGLXVideoSourceSGIX(Display
*dpy
, int screen
, VLServer server
, VLPath path
, int nodeClass
, VLNode drainNode
)
2388 Fake_glXDestroyGLXVideoSourceSGIX(Display
*dpy
, GLXVideoSourceSGIX src
)
2397 /*** GLX_EXT_import_context ***/
2400 Fake_glXFreeContextEXT(Display
*dpy
, GLXContext context
)
2407 Fake_glXGetContextIDEXT(const GLXContext context
)
2414 Fake_glXImportContextEXT(Display
*dpy
, GLXContextID contextID
)
2422 Fake_glXQueryContextInfoEXT(Display
*dpy
, GLXContext context
, int attribute
, int *value
)
2433 /*** GLX_SGIX_fbconfig ***/
2436 Fake_glXGetFBConfigAttribSGIX(Display
*dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
)
2438 return Fake_glXGetFBConfigAttrib(dpy
, config
, attribute
, value
);
2441 static GLXFBConfigSGIX
*
2442 Fake_glXChooseFBConfigSGIX(Display
*dpy
, int screen
, int *attrib_list
, int *nelements
)
2444 return (GLXFBConfig
*) Fake_glXChooseFBConfig(dpy
, screen
, attrib_list
, nelements
);
2449 Fake_glXCreateGLXPixmapWithConfigSGIX(Display
*dpy
, GLXFBConfigSGIX config
, Pixmap pixmap
)
2451 XMesaVisual xmvis
= (XMesaVisual
) config
;
2452 XMesaBuffer xmbuf
= XMesaCreatePixmapBuffer(xmvis
, pixmap
, 0);
2453 return xmbuf
->frontxrb
->pixmap
; /* need to return an X ID */
2458 Fake_glXCreateContextWithConfigSGIX(Display
*dpy
, GLXFBConfigSGIX config
, int render_type
, GLXContext share_list
, Bool direct
)
2461 XMesaVisual xmvis
= (XMesaVisual
) config
;
2463 /* deallocate unused windows/buffers */
2464 XMesaGarbageCollect(dpy
);
2466 xmCtx
= XMesaCreateContext(xmvis
, (XMesaContext
) share_list
);
2468 return (GLXContext
) xmCtx
;
2472 static XVisualInfo
*
2473 Fake_glXGetVisualFromFBConfigSGIX(Display
*dpy
, GLXFBConfigSGIX config
)
2475 return Fake_glXGetVisualFromFBConfig(dpy
, config
);
2479 static GLXFBConfigSGIX
2480 Fake_glXGetFBConfigFromVisualSGIX(Display
*dpy
, XVisualInfo
*vis
)
2482 XMesaVisual xmvis
= find_glx_visual(dpy
, vis
);
2484 /* This visual wasn't found with glXChooseVisual() */
2485 xmvis
= create_glx_visual(dpy
, vis
);
2488 return (GLXFBConfigSGIX
) xmvis
;
2493 /*** GLX_SGIX_pbuffer ***/
2495 static GLXPbufferSGIX
2496 Fake_glXCreateGLXPbufferSGIX(Display
*dpy
, GLXFBConfigSGIX config
,
2497 unsigned int width
, unsigned int height
,
2500 XMesaVisual xmvis
= (XMesaVisual
) config
;
2503 GLboolean useLargest
= GL_FALSE
, preserveContents
= GL_FALSE
;
2507 for (attrib
= attribList
; attrib
&& *attrib
; attrib
++) {
2509 case GLX_PRESERVED_CONTENTS_SGIX
:
2511 preserveContents
= *attrib
; /* ignored */
2513 case GLX_LARGEST_PBUFFER_SGIX
:
2515 useLargest
= *attrib
; /* ignored */
2522 /* not used at this time */
2524 (void) preserveContents
;
2526 xmbuf
= XMesaCreatePBuffer( xmvis
, 0, width
, height
);
2527 /* A GLXPbuffer handle must be an X Drawable because that's what
2528 * glXMakeCurrent takes.
2530 return (GLXPbuffer
) xmbuf
->frontxrb
->pixmap
;
2535 Fake_glXDestroyGLXPbufferSGIX(Display
*dpy
, GLXPbufferSGIX pbuf
)
2537 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, pbuf
);
2539 XMesaDestroyBuffer(xmbuf
);
2545 Fake_glXQueryGLXPbufferSGIX(Display
*dpy
, GLXPbufferSGIX pbuf
, int attribute
, unsigned int *value
)
2547 const XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, pbuf
);
2550 /* Generate GLXBadPbufferSGIX for bad pbuffer */
2554 switch (attribute
) {
2555 case GLX_PRESERVED_CONTENTS_SGIX
:
2556 *value
= xmbuf
->preservedContents
;
2558 case GLX_LARGEST_PBUFFER_SGIX
:
2559 *value
= xmbuf
->largestPbuffer
;
2561 case GLX_WIDTH_SGIX
:
2562 *value
= xmbuf
->mesa_buffer
.Width
;
2564 case GLX_HEIGHT_SGIX
:
2565 *value
= xmbuf
->mesa_buffer
.Height
;
2567 case GLX_EVENT_MASK_SGIX
:
2568 *value
= 0; /* XXX might be wrong */
2578 Fake_glXSelectEventSGIX(Display
*dpy
, GLXDrawable drawable
, unsigned long mask
)
2580 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2582 /* Note: we'll never generate clobber events */
2583 xmbuf
->selectedEvents
= mask
;
2589 Fake_glXGetSelectedEventSGIX(Display
*dpy
, GLXDrawable drawable
, unsigned long *mask
)
2591 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2593 *mask
= xmbuf
->selectedEvents
;
2602 /*** GLX_SGI_cushion ***/
2605 Fake_glXCushionSGI(Display
*dpy
, Window win
, float cushion
)
2614 /*** GLX_SGIX_video_resize ***/
2617 Fake_glXBindChannelToWindowSGIX(Display
*dpy
, int screen
, int channel
, Window window
)
2627 Fake_glXChannelRectSGIX(Display
*dpy
, int screen
, int channel
, int x
, int y
, int w
, int h
)
2640 Fake_glXQueryChannelRectSGIX(Display
*dpy
, int screen
, int channel
, int *x
, int *y
, int *w
, int *h
)
2653 Fake_glXQueryChannelDeltasSGIX(Display
*dpy
, int screen
, int channel
, int *dx
, int *dy
, int *dw
, int *dh
)
2666 Fake_glXChannelRectSyncSGIX(Display
*dpy
, int screen
, int channel
, GLenum synctype
)
2677 /*** GLX_SGIX_dmbuffer **/
2679 #if defined(_DM_BUFFER_H_)
2681 Fake_glXAssociateDMPbufferSGIX(Display
*dpy
, GLXPbufferSGIX pbuffer
, DMparams
*params
, DMbuffer dmbuffer
)
2692 /*** GLX_SGIX_swap_group ***/
2695 Fake_glXJoinSwapGroupSGIX(Display
*dpy
, GLXDrawable drawable
, GLXDrawable member
)
2704 /*** GLX_SGIX_swap_barrier ***/
2707 Fake_glXBindSwapBarrierSGIX(Display
*dpy
, GLXDrawable drawable
, int barrier
)
2715 Fake_glXQueryMaxSwapBarriersSGIX(Display
*dpy
, int screen
, int *max
)
2725 /*** GLX_SUN_get_transparent_index ***/
2728 Fake_glXGetTransparentIndexSUN(Display
*dpy
, Window overlay
, Window underlay
, long *pTransparent
)
2733 (void) pTransparent
;
2739 /*** GLX_MESA_release_buffers ***/
2742 * Release the depth, stencil, accum buffers attached to a GLXDrawable
2743 * (a window or pixmap) prior to destroying the GLXDrawable.
2746 Fake_glXReleaseBuffersMESA( Display
*dpy
, GLXDrawable d
)
2748 XMesaBuffer b
= XMesaFindBuffer(dpy
, d
);
2750 XMesaDestroyBuffer(b
);
2758 /*** GLX_MESA_set_3dfx_mode ***/
2761 Fake_glXSet3DfxModeMESA( int mode
)
2763 return XMesaSetFXmode( mode
);
2768 /*** GLX_NV_vertex_array range ***/
2770 Fake_glXAllocateMemoryNV( GLsizei size
,
2771 GLfloat readFrequency
,
2772 GLfloat writeFrequency
,
2776 (void) readFrequency
;
2777 (void) writeFrequency
;
2784 Fake_glXFreeMemoryNV( GLvoid
*pointer
)
2790 /*** GLX_MESA_agp_offset ***/
2793 Fake_glXGetAGPOffsetMESA( const GLvoid
*pointer
)
2800 /*** GLX_EXT_texture_from_pixmap ***/
2803 Fake_glXBindTexImageEXT(Display
*dpy
, GLXDrawable drawable
, int buffer
,
2804 const int *attrib_list
)
2806 XMesaBuffer b
= XMesaFindBuffer(dpy
, drawable
);
2808 XMesaBindTexImage(dpy
, b
, buffer
, attrib_list
);
2812 Fake_glXReleaseTexImageEXT(Display
*dpy
, GLXDrawable drawable
, int buffer
)
2814 XMesaBuffer b
= XMesaFindBuffer(dpy
, drawable
);
2816 XMesaReleaseTexImage(dpy
, b
, buffer
);
2821 Fake_glXCreateContextAttribs(Display
*dpy
, GLXFBConfig config
,
2822 GLXContext share_context
, Bool direct
,
2823 const int *attrib_list
)
2826 XMesaVisual xmvis
= (XMesaVisual
) config
;
2828 int major
= 0, minor
= 0, ctxFlags
= 0, profileFlags
= 0;
2830 for (i
= 0; attrib_list
[i
]; i
+= 2) {
2831 switch (attrib_list
[i
]) {
2832 case GLX_CONTEXT_MAJOR_VERSION_ARB
:
2833 major
= attrib_list
[i
+ 1];
2835 case GLX_CONTEXT_MINOR_VERSION_ARB
:
2836 minor
= attrib_list
[i
+ 1];
2838 case GLX_CONTEXT_FLAGS_ARB
:
2839 ctxFlags
= attrib_list
[i
+ 1];
2841 case GLX_CONTEXT_PROFILE_MASK_ARB
:
2842 profileFlags
= attrib_list
[i
+ 1];
2845 fprintf(stderr
, "Bad attribute in glXCreateContextAttribs()\n");
2850 if (major
* 10 + minor
> 21) {
2851 /* swrast only supports GL 2.1 and earlier */
2855 /* These are ignored for now. We'd have to enhance XMesaCreateContext
2856 * to take these flags and the version, at least.
2859 (void) profileFlags
;
2861 /* deallocate unused windows/buffers */
2862 XMesaGarbageCollect(dpy
);
2864 xmCtx
= XMesaCreateContext(xmvis
, (XMesaContext
) share_context
);
2866 return (GLXContext
) xmCtx
;
2870 /* silence warning */
2871 extern struct _glxapi_table
*_mesa_GetGLXDispatchTable(void);
2875 * Create a new GLX API dispatch table with its function pointers
2876 * initialized to point to Mesa's "fake" GLX API functions.
2877 * Note: there's a similar function (_real_GetGLXDispatchTable) that
2878 * returns a new dispatch table with all pointers initalized to point
2879 * to "real" GLX functions (which understand GLX wire protocol, etc).
2881 struct _glxapi_table
*
2882 _mesa_GetGLXDispatchTable(void)
2884 static struct _glxapi_table glx
;
2886 /* be sure our dispatch table size <= libGL's table */
2888 GLuint size
= sizeof(struct _glxapi_table
) / sizeof(void *);
2890 assert(_glxapi_get_dispatch_table_size() >= size
);
2893 /* initialize the whole table to no-ops */
2894 _glxapi_set_no_op_table(&glx
);
2896 /* now initialize the table with the functions I implement */
2897 glx
.ChooseVisual
= Fake_glXChooseVisual
;
2898 glx
.CopyContext
= Fake_glXCopyContext
;
2899 glx
.CreateContext
= Fake_glXCreateContext
;
2900 glx
.CreateGLXPixmap
= Fake_glXCreateGLXPixmap
;
2901 glx
.DestroyContext
= Fake_glXDestroyContext
;
2902 glx
.DestroyGLXPixmap
= Fake_glXDestroyGLXPixmap
;
2903 glx
.GetConfig
= Fake_glXGetConfig
;
2904 glx
.GetCurrentContext
= Fake_glXGetCurrentContext
;
2905 /*glx.GetCurrentDrawable = Fake_glXGetCurrentDrawable;*/
2906 glx
.IsDirect
= Fake_glXIsDirect
;
2907 glx
.MakeCurrent
= Fake_glXMakeCurrent
;
2908 glx
.QueryExtension
= Fake_glXQueryExtension
;
2909 glx
.QueryVersion
= Fake_glXQueryVersion
;
2910 glx
.SwapBuffers
= Fake_glXSwapBuffers
;
2911 glx
.UseXFont
= Fake_glXUseXFont
;
2912 glx
.WaitGL
= Fake_glXWaitGL
;
2913 glx
.WaitX
= Fake_glXWaitX
;
2915 /*** GLX_VERSION_1_1 ***/
2916 glx
.GetClientString
= Fake_glXGetClientString
;
2917 glx
.QueryExtensionsString
= Fake_glXQueryExtensionsString
;
2918 glx
.QueryServerString
= Fake_glXQueryServerString
;
2920 /*** GLX_VERSION_1_2 ***/
2921 /*glx.GetCurrentDisplay = Fake_glXGetCurrentDisplay;*/
2923 /*** GLX_VERSION_1_3 ***/
2924 glx
.ChooseFBConfig
= Fake_glXChooseFBConfig
;
2925 glx
.CreateNewContext
= Fake_glXCreateNewContext
;
2926 glx
.CreatePbuffer
= Fake_glXCreatePbuffer
;
2927 glx
.CreatePixmap
= Fake_glXCreatePixmap
;
2928 glx
.CreateWindow
= Fake_glXCreateWindow
;
2929 glx
.DestroyPbuffer
= Fake_glXDestroyPbuffer
;
2930 glx
.DestroyPixmap
= Fake_glXDestroyPixmap
;
2931 glx
.DestroyWindow
= Fake_glXDestroyWindow
;
2932 /*glx.GetCurrentReadDrawable = Fake_glXGetCurrentReadDrawable;*/
2933 glx
.GetFBConfigAttrib
= Fake_glXGetFBConfigAttrib
;
2934 glx
.GetFBConfigs
= Fake_glXGetFBConfigs
;
2935 glx
.GetSelectedEvent
= Fake_glXGetSelectedEvent
;
2936 glx
.GetVisualFromFBConfig
= Fake_glXGetVisualFromFBConfig
;
2937 glx
.MakeContextCurrent
= Fake_glXMakeContextCurrent
;
2938 glx
.QueryContext
= Fake_glXQueryContext
;
2939 glx
.QueryDrawable
= Fake_glXQueryDrawable
;
2940 glx
.SelectEvent
= Fake_glXSelectEvent
;
2942 /*** GLX_SGI_swap_control ***/
2943 glx
.SwapIntervalSGI
= Fake_glXSwapIntervalSGI
;
2945 /*** GLX_SGI_video_sync ***/
2946 glx
.GetVideoSyncSGI
= Fake_glXGetVideoSyncSGI
;
2947 glx
.WaitVideoSyncSGI
= Fake_glXWaitVideoSyncSGI
;
2949 /*** GLX_SGI_make_current_read ***/
2950 glx
.MakeCurrentReadSGI
= Fake_glXMakeCurrentReadSGI
;
2951 /*glx.GetCurrentReadDrawableSGI = Fake_glXGetCurrentReadDrawableSGI;*/
2953 /*** GLX_SGIX_video_source ***/
2955 glx
.CreateGLXVideoSourceSGIX
= Fake_glXCreateGLXVideoSourceSGIX
;
2956 glx
.DestroyGLXVideoSourceSGIX
= Fake_glXDestroyGLXVideoSourceSGIX
;
2959 /*** GLX_EXT_import_context ***/
2960 glx
.FreeContextEXT
= Fake_glXFreeContextEXT
;
2961 glx
.GetContextIDEXT
= Fake_glXGetContextIDEXT
;
2962 /*glx.GetCurrentDisplayEXT = Fake_glXGetCurrentDisplayEXT;*/
2963 glx
.ImportContextEXT
= Fake_glXImportContextEXT
;
2964 glx
.QueryContextInfoEXT
= Fake_glXQueryContextInfoEXT
;
2966 /*** GLX_SGIX_fbconfig ***/
2967 glx
.GetFBConfigAttribSGIX
= Fake_glXGetFBConfigAttribSGIX
;
2968 glx
.ChooseFBConfigSGIX
= Fake_glXChooseFBConfigSGIX
;
2969 glx
.CreateGLXPixmapWithConfigSGIX
= Fake_glXCreateGLXPixmapWithConfigSGIX
;
2970 glx
.CreateContextWithConfigSGIX
= Fake_glXCreateContextWithConfigSGIX
;
2971 glx
.GetVisualFromFBConfigSGIX
= Fake_glXGetVisualFromFBConfigSGIX
;
2972 glx
.GetFBConfigFromVisualSGIX
= Fake_glXGetFBConfigFromVisualSGIX
;
2974 /*** GLX_SGIX_pbuffer ***/
2975 glx
.CreateGLXPbufferSGIX
= Fake_glXCreateGLXPbufferSGIX
;
2976 glx
.DestroyGLXPbufferSGIX
= Fake_glXDestroyGLXPbufferSGIX
;
2977 glx
.QueryGLXPbufferSGIX
= Fake_glXQueryGLXPbufferSGIX
;
2978 glx
.SelectEventSGIX
= Fake_glXSelectEventSGIX
;
2979 glx
.GetSelectedEventSGIX
= Fake_glXGetSelectedEventSGIX
;
2981 /*** GLX_SGI_cushion ***/
2982 glx
.CushionSGI
= Fake_glXCushionSGI
;
2984 /*** GLX_SGIX_video_resize ***/
2985 glx
.BindChannelToWindowSGIX
= Fake_glXBindChannelToWindowSGIX
;
2986 glx
.ChannelRectSGIX
= Fake_glXChannelRectSGIX
;
2987 glx
.QueryChannelRectSGIX
= Fake_glXQueryChannelRectSGIX
;
2988 glx
.QueryChannelDeltasSGIX
= Fake_glXQueryChannelDeltasSGIX
;
2989 glx
.ChannelRectSyncSGIX
= Fake_glXChannelRectSyncSGIX
;
2991 /*** GLX_SGIX_dmbuffer **/
2992 #if defined(_DM_BUFFER_H_)
2993 glx
.AssociateDMPbufferSGIX
= NULL
;
2996 /*** GLX_SGIX_swap_group ***/
2997 glx
.JoinSwapGroupSGIX
= Fake_glXJoinSwapGroupSGIX
;
2999 /*** GLX_SGIX_swap_barrier ***/
3000 glx
.BindSwapBarrierSGIX
= Fake_glXBindSwapBarrierSGIX
;
3001 glx
.QueryMaxSwapBarriersSGIX
= Fake_glXQueryMaxSwapBarriersSGIX
;
3003 /*** GLX_SUN_get_transparent_index ***/
3004 glx
.GetTransparentIndexSUN
= Fake_glXGetTransparentIndexSUN
;
3006 /*** GLX_MESA_copy_sub_buffer ***/
3007 glx
.CopySubBufferMESA
= Fake_glXCopySubBufferMESA
;
3009 /*** GLX_MESA_release_buffers ***/
3010 glx
.ReleaseBuffersMESA
= Fake_glXReleaseBuffersMESA
;
3012 /*** GLX_MESA_pixmap_colormap ***/
3013 glx
.CreateGLXPixmapMESA
= Fake_glXCreateGLXPixmapMESA
;
3015 /*** GLX_MESA_set_3dfx_mode ***/
3016 glx
.Set3DfxModeMESA
= Fake_glXSet3DfxModeMESA
;
3018 /*** GLX_NV_vertex_array_range ***/
3019 glx
.AllocateMemoryNV
= Fake_glXAllocateMemoryNV
;
3020 glx
.FreeMemoryNV
= Fake_glXFreeMemoryNV
;
3022 /*** GLX_MESA_agp_offset ***/
3023 glx
.GetAGPOffsetMESA
= Fake_glXGetAGPOffsetMESA
;
3025 /*** GLX_EXT_texture_from_pixmap ***/
3026 glx
.BindTexImageEXT
= Fake_glXBindTexImageEXT
;
3027 glx
.ReleaseTexImageEXT
= Fake_glXReleaseTexImageEXT
;
3029 glx
.CreateContextAttribs
= Fake_glXCreateContextAttribs
;