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
;
1463 if (ctx
&& draw
&& read
) {
1464 XMesaBuffer drawBuffer
, readBuffer
;
1465 XMesaContext xmctx
= glxCtx
->xmesaContext
;
1467 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'draw' */
1468 if (ctx
== MakeCurrent_PrevContext
1469 && draw
== MakeCurrent_PrevDrawable
) {
1470 drawBuffer
= MakeCurrent_PrevDrawBuffer
;
1473 drawBuffer
= XMesaFindBuffer( dpy
, draw
);
1476 /* drawable must be a new window! */
1477 drawBuffer
= XMesaCreateWindowBuffer( xmctx
->xm_visual
, draw
);
1479 /* Out of memory, or context/drawable depth mismatch */
1483 FXcreateContext( xmctx
->xm_visual
, draw
, xmctx
, drawBuffer
);
1487 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */
1488 if (ctx
== MakeCurrent_PrevContext
1489 && read
== MakeCurrent_PrevReadable
) {
1490 readBuffer
= MakeCurrent_PrevReadBuffer
;
1493 readBuffer
= XMesaFindBuffer( dpy
, read
);
1496 /* drawable must be a new window! */
1497 readBuffer
= XMesaCreateWindowBuffer( xmctx
->xm_visual
, read
);
1499 /* Out of memory, or context/drawable depth mismatch */
1503 FXcreateContext( xmctx
->xm_visual
, read
, xmctx
, readBuffer
);
1507 MakeCurrent_PrevContext
= ctx
;
1508 MakeCurrent_PrevDrawable
= draw
;
1509 MakeCurrent_PrevReadable
= read
;
1510 MakeCurrent_PrevDrawBuffer
= drawBuffer
;
1511 MakeCurrent_PrevReadBuffer
= readBuffer
;
1513 /* Now make current! */
1514 if (XMesaMakeCurrent2(xmctx
, drawBuffer
, readBuffer
)) {
1515 ((__GLXcontext
*) ctx
)->currentDpy
= dpy
;
1516 ((__GLXcontext
*) ctx
)->currentDrawable
= draw
;
1517 ((__GLXcontext
*) ctx
)->currentReadable
= read
;
1524 else if (!ctx
&& !draw
&& !read
) {
1525 /* release current context w/out assigning new one. */
1526 XMesaMakeCurrent( NULL
, NULL
);
1527 MakeCurrent_PrevContext
= 0;
1528 MakeCurrent_PrevDrawable
= 0;
1529 MakeCurrent_PrevReadable
= 0;
1530 MakeCurrent_PrevDrawBuffer
= 0;
1531 MakeCurrent_PrevReadBuffer
= 0;
1535 /* The args must either all be non-zero or all zero.
1544 Fake_glXMakeCurrent( Display
*dpy
, GLXDrawable drawable
, GLXContext ctx
)
1546 return Fake_glXMakeContextCurrent( dpy
, drawable
, drawable
, ctx
);
1551 Fake_glXCreateGLXPixmap( Display
*dpy
, XVisualInfo
*visinfo
, Pixmap pixmap
)
1556 v
= find_glx_visual( dpy
, visinfo
);
1558 v
= create_glx_visual( dpy
, visinfo
);
1560 /* unusable visual */
1565 b
= XMesaCreatePixmapBuffer( v
, pixmap
, 0 );
1573 /*** GLX_MESA_pixmap_colormap ***/
1576 Fake_glXCreateGLXPixmapMESA( Display
*dpy
, XVisualInfo
*visinfo
,
1577 Pixmap pixmap
, Colormap cmap
)
1582 v
= find_glx_visual( dpy
, visinfo
);
1584 v
= create_glx_visual( dpy
, visinfo
);
1586 /* unusable visual */
1591 b
= XMesaCreatePixmapBuffer( v
, pixmap
, cmap
);
1600 Fake_glXDestroyGLXPixmap( Display
*dpy
, GLXPixmap pixmap
)
1602 XMesaBuffer b
= XMesaFindBuffer(dpy
, pixmap
);
1604 XMesaDestroyBuffer(b
);
1606 else if (_mesa_getenv("MESA_DEBUG")) {
1607 _mesa_warning(NULL
, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n");
1613 Fake_glXCopyContext( Display
*dpy
, GLXContext src
, GLXContext dst
,
1614 unsigned long mask
)
1616 struct fake_glx_context
*fakeSrc
= (struct fake_glx_context
*) src
;
1617 struct fake_glx_context
*fakeDst
= (struct fake_glx_context
*) dst
;
1618 XMesaContext xm_src
= fakeSrc
->xmesaContext
;
1619 XMesaContext xm_dst
= fakeDst
->xmesaContext
;
1621 if (MakeCurrent_PrevContext
== src
) {
1624 st_copy_context_state( xm_src
->st
, xm_dst
->st
, (GLuint
) mask
);
1629 Fake_glXQueryExtension( Display
*dpy
, int *errorb
, int *event
)
1631 /* Mesa's GLX isn't really an X extension but we try to act like one. */
1639 extern void _kw_ungrab_all( Display
*dpy
);
1640 void _kw_ungrab_all( Display
*dpy
)
1642 XUngrabPointer( dpy
, CurrentTime
);
1643 XUngrabKeyboard( dpy
, CurrentTime
);
1648 Fake_glXDestroyContext( Display
*dpy
, GLXContext ctx
)
1650 struct fake_glx_context
*glxCtx
= (struct fake_glx_context
*) ctx
;
1652 MakeCurrent_PrevContext
= 0;
1653 MakeCurrent_PrevDrawable
= 0;
1654 MakeCurrent_PrevReadable
= 0;
1655 MakeCurrent_PrevDrawBuffer
= 0;
1656 MakeCurrent_PrevReadBuffer
= 0;
1657 XMesaDestroyContext( glxCtx
->xmesaContext
);
1658 XMesaGarbageCollect();
1664 Fake_glXIsDirect( Display
*dpy
, GLXContext ctx
)
1674 Fake_glXSwapBuffers( Display
*dpy
, GLXDrawable drawable
)
1676 XMesaBuffer buffer
= XMesaFindBuffer( dpy
, drawable
);
1679 XMesaSwapBuffers(buffer
);
1681 else if (_mesa_getenv("MESA_DEBUG")) {
1682 _mesa_warning(NULL
, "glXSwapBuffers: invalid drawable 0x%x\n",
1689 /*** GLX_MESA_copy_sub_buffer ***/
1692 Fake_glXCopySubBufferMESA( Display
*dpy
, GLXDrawable drawable
,
1693 int x
, int y
, int width
, int height
)
1695 XMesaBuffer buffer
= XMesaFindBuffer( dpy
, drawable
);
1697 XMesaCopySubBuffer(buffer
, x
, y
, width
, height
);
1699 else if (_mesa_getenv("MESA_DEBUG")) {
1700 _mesa_warning(NULL
, "Mesa: glXCopySubBufferMESA: invalid drawable\n");
1706 Fake_glXQueryVersion( Display
*dpy
, int *maj
, int *min
)
1709 /* Return GLX version, not Mesa version */
1710 assert(CLIENT_MAJOR_VERSION
== SERVER_MAJOR_VERSION
);
1711 *maj
= CLIENT_MAJOR_VERSION
;
1712 *min
= MIN2( CLIENT_MINOR_VERSION
, SERVER_MINOR_VERSION
);
1718 * Query the GLX attributes of the given XVisualInfo.
1721 get_config( XMesaVisual xmvis
, int attrib
, int *value
, GLboolean fbconfig
)
1727 return GLX_BAD_ATTRIBUTE
;
1728 *value
= (int) True
;
1730 case GLX_BUFFER_SIZE
:
1731 *value
= xmvis
->visinfo
->depth
;
1734 *value
= xmvis
->mesa_visual
.level
;
1738 return GLX_BAD_ATTRIBUTE
;
1739 if (xmvis
->mesa_visual
.rgbMode
) {
1746 case GLX_DOUBLEBUFFER
:
1747 *value
= (int) xmvis
->mesa_visual
.doubleBufferMode
;
1750 *value
= (int) xmvis
->mesa_visual
.stereoMode
;
1752 case GLX_AUX_BUFFERS
:
1753 *value
= xmvis
->mesa_visual
.numAuxBuffers
;
1756 *value
= xmvis
->mesa_visual
.redBits
;
1758 case GLX_GREEN_SIZE
:
1759 *value
= xmvis
->mesa_visual
.greenBits
;
1762 *value
= xmvis
->mesa_visual
.blueBits
;
1764 case GLX_ALPHA_SIZE
:
1765 *value
= xmvis
->mesa_visual
.alphaBits
;
1767 case GLX_DEPTH_SIZE
:
1768 *value
= xmvis
->mesa_visual
.depthBits
;
1770 case GLX_STENCIL_SIZE
:
1771 *value
= xmvis
->mesa_visual
.stencilBits
;
1773 case GLX_ACCUM_RED_SIZE
:
1774 *value
= xmvis
->mesa_visual
.accumRedBits
;
1776 case GLX_ACCUM_GREEN_SIZE
:
1777 *value
= xmvis
->mesa_visual
.accumGreenBits
;
1779 case GLX_ACCUM_BLUE_SIZE
:
1780 *value
= xmvis
->mesa_visual
.accumBlueBits
;
1782 case GLX_ACCUM_ALPHA_SIZE
:
1783 *value
= xmvis
->mesa_visual
.accumAlphaBits
;
1787 * GLX_EXT_visual_info extension
1789 case GLX_X_VISUAL_TYPE_EXT
:
1790 switch (xmvis
->visinfo
->CLASS
) {
1791 case StaticGray
: *value
= GLX_STATIC_GRAY_EXT
; return 0;
1792 case GrayScale
: *value
= GLX_GRAY_SCALE_EXT
; return 0;
1793 case StaticColor
: *value
= GLX_STATIC_GRAY_EXT
; return 0;
1794 case PseudoColor
: *value
= GLX_PSEUDO_COLOR_EXT
; return 0;
1795 case TrueColor
: *value
= GLX_TRUE_COLOR_EXT
; return 0;
1796 case DirectColor
: *value
= GLX_DIRECT_COLOR_EXT
; return 0;
1799 case GLX_TRANSPARENT_TYPE_EXT
:
1800 if (xmvis
->mesa_visual
.level
==0) {
1802 *value
= GLX_NONE_EXT
;
1804 else if (xmvis
->mesa_visual
.level
>0) {
1806 if (xmvis
->mesa_visual
.rgbMode
) {
1807 *value
= GLX_TRANSPARENT_RGB_EXT
;
1810 *value
= GLX_TRANSPARENT_INDEX_EXT
;
1813 else if (xmvis
->mesa_visual
.level
<0) {
1815 *value
= GLX_NONE_EXT
;
1818 case GLX_TRANSPARENT_INDEX_VALUE_EXT
:
1820 int pixel
= transparent_pixel( xmvis
);
1824 /* else undefined */
1827 case GLX_TRANSPARENT_RED_VALUE_EXT
:
1830 case GLX_TRANSPARENT_GREEN_VALUE_EXT
:
1833 case GLX_TRANSPARENT_BLUE_VALUE_EXT
:
1836 case GLX_TRANSPARENT_ALPHA_VALUE_EXT
:
1841 * GLX_EXT_visual_info extension
1843 case GLX_VISUAL_CAVEAT_EXT
:
1844 /* test for zero, just in case */
1845 if (xmvis
->mesa_visual
.visualRating
> 0)
1846 *value
= xmvis
->mesa_visual
.visualRating
;
1848 *value
= GLX_NONE_EXT
;
1852 * GLX_ARB_multisample
1854 case GLX_SAMPLE_BUFFERS_ARB
:
1857 case GLX_SAMPLES_ARB
:
1864 case GLX_SCREEN_EXT
:
1866 return GLX_BAD_ATTRIBUTE
;
1867 *value
= xmvis
->visinfo
->screen
;
1869 case GLX_DRAWABLE_TYPE
: /*SGIX too */
1871 return GLX_BAD_ATTRIBUTE
;
1872 *value
= GLX_WINDOW_BIT
| GLX_PIXMAP_BIT
| GLX_PBUFFER_BIT
;
1874 case GLX_RENDER_TYPE_SGIX
:
1876 return GLX_BAD_ATTRIBUTE
;
1877 if (xmvis
->mesa_visual
.rgbMode
)
1878 *value
= GLX_RGBA_BIT
;
1880 *value
= GLX_COLOR_INDEX_BIT
;
1882 case GLX_X_RENDERABLE_SGIX
:
1884 return GLX_BAD_ATTRIBUTE
;
1885 *value
= True
; /* XXX really? */
1887 case GLX_FBCONFIG_ID_SGIX
:
1889 return GLX_BAD_ATTRIBUTE
;
1890 *value
= xmvis
->visinfo
->visualid
;
1892 case GLX_MAX_PBUFFER_WIDTH
:
1894 return GLX_BAD_ATTRIBUTE
;
1895 /* XXX or MAX_WIDTH? */
1896 *value
= DisplayWidth(xmvis
->display
, xmvis
->visinfo
->screen
);
1898 case GLX_MAX_PBUFFER_HEIGHT
:
1900 return GLX_BAD_ATTRIBUTE
;
1901 *value
= DisplayHeight(xmvis
->display
, xmvis
->visinfo
->screen
);
1903 case GLX_MAX_PBUFFER_PIXELS
:
1905 return GLX_BAD_ATTRIBUTE
;
1906 *value
= DisplayWidth(xmvis
->display
, xmvis
->visinfo
->screen
) *
1907 DisplayHeight(xmvis
->display
, xmvis
->visinfo
->screen
);
1911 return GLX_BAD_ATTRIBUTE
;
1912 *value
= xmvis
->visinfo
->visualid
;
1915 #ifdef GLX_EXT_texture_from_pixmap
1916 case GLX_BIND_TO_TEXTURE_RGB_EXT
:
1917 *value
= True
; /*XXX*/
1919 case GLX_BIND_TO_TEXTURE_RGBA_EXT
:
1921 *value
= xmvis
->mesa_visual
.alphaBits
> 0 ? True
: False
;
1923 case GLX_BIND_TO_MIPMAP_TEXTURE_EXT
:
1924 *value
= True
; /*XXX*/
1926 case GLX_BIND_TO_TEXTURE_TARGETS_EXT
:
1927 *value
= (GLX_TEXTURE_1D_BIT_EXT
|
1928 GLX_TEXTURE_2D_BIT_EXT
|
1929 GLX_TEXTURE_RECTANGLE_BIT_EXT
); /*XXX*/
1931 case GLX_Y_INVERTED_EXT
:
1932 *value
= True
; /*XXX*/
1937 return GLX_BAD_ATTRIBUTE
;
1944 Fake_glXGetConfig( Display
*dpy
, XVisualInfo
*visinfo
,
1945 int attrib
, int *value
)
1949 if (!dpy
|| !visinfo
)
1950 return GLX_BAD_ATTRIBUTE
;
1952 xmvis
= find_glx_visual( dpy
, visinfo
);
1954 /* this visual wasn't obtained with glXChooseVisual */
1955 xmvis
= create_glx_visual( dpy
, visinfo
);
1957 /* this visual can't be used for GL rendering */
1958 if (attrib
==GLX_USE_GL
) {
1959 *value
= (int) False
;
1963 return GLX_BAD_VISUAL
;
1968 k
= get_config(xmvis
, attrib
, value
, GL_FALSE
);
1974 Fake_glXWaitGL( void )
1976 XMesaContext xmesa
= XMesaGetCurrentContext();
1977 XMesaFlush( xmesa
);
1983 Fake_glXWaitX( void )
1985 XMesaContext xmesa
= XMesaGetCurrentContext();
1986 XMesaFlush( xmesa
);
1991 get_extensions( void )
1994 const char *fx
= _mesa_getenv("MESA_GLX_FX");
1995 if (fx
&& fx
[0] != 'd') {
1999 return EXTENSIONS
+ 23; /* skip "GLX_MESA_set_3dfx_mode" */
2004 /* GLX 1.1 and later */
2006 Fake_glXQueryExtensionsString( Display
*dpy
, int screen
)
2010 return get_extensions();
2015 /* GLX 1.1 and later */
2017 Fake_glXQueryServerString( Display
*dpy
, int screen
, int name
)
2019 static char version
[1000];
2020 _mesa_sprintf(version
, "%d.%d %s",
2021 SERVER_MAJOR_VERSION
, SERVER_MINOR_VERSION
, MESA_GLX_VERSION
);
2027 case GLX_EXTENSIONS
:
2028 return get_extensions();
2040 /* GLX 1.1 and later */
2042 Fake_glXGetClientString( Display
*dpy
, int name
)
2044 static char version
[1000];
2045 _mesa_sprintf(version
, "%d.%d %s", CLIENT_MAJOR_VERSION
,
2046 CLIENT_MINOR_VERSION
, MESA_GLX_VERSION
);
2051 case GLX_EXTENSIONS
:
2052 return get_extensions();
2070 Fake_glXGetFBConfigAttrib( Display
*dpy
, GLXFBConfig config
,
2071 int attribute
, int *value
)
2073 XMesaVisual v
= (XMesaVisual
) config
;
2077 if (!dpy
|| !config
|| !value
)
2080 return get_config(v
, attribute
, value
, GL_TRUE
);
2084 static GLXFBConfig
*
2085 Fake_glXGetFBConfigs( Display
*dpy
, int screen
, int *nelements
)
2087 XVisualInfo
*visuals
, visTemplate
;
2088 const long visMask
= VisualScreenMask
;
2091 /* Get list of all X visuals */
2092 visTemplate
.screen
= screen
;
2093 visuals
= XGetVisualInfo(dpy
, visMask
, &visTemplate
, nelements
);
2094 if (*nelements
> 0) {
2095 XMesaVisual
*results
;
2096 results
= (XMesaVisual
*) _mesa_malloc(*nelements
* sizeof(XMesaVisual
));
2101 for (i
= 0; i
< *nelements
; i
++) {
2102 results
[i
] = create_glx_visual(dpy
, visuals
+ i
);
2104 return (GLXFBConfig
*) results
;
2110 static GLXFBConfig
*
2111 Fake_glXChooseFBConfig( Display
*dpy
, int screen
,
2112 const int *attribList
, int *nitems
)
2116 if (!attribList
|| !attribList
[0]) {
2117 /* return list of all configs (per GLX_SGIX_fbconfig spec) */
2118 return Fake_glXGetFBConfigs(dpy
, screen
, nitems
);
2121 xmvis
= choose_visual(dpy
, screen
, attribList
, GL_TRUE
);
2123 GLXFBConfig
*config
= (GLXFBConfig
*) _mesa_malloc(sizeof(XMesaVisual
));
2129 config
[0] = (GLXFBConfig
) xmvis
;
2130 return (GLXFBConfig
*) config
;
2139 static XVisualInfo
*
2140 Fake_glXGetVisualFromFBConfig( Display
*dpy
, GLXFBConfig config
)
2142 if (dpy
&& config
) {
2143 XMesaVisual xmvis
= (XMesaVisual
) config
;
2145 return xmvis
->vishandle
;
2147 /* create a new vishandle - the cached one may be stale */
2148 xmvis
->vishandle
= (XVisualInfo
*) _mesa_malloc(sizeof(XVisualInfo
));
2149 if (xmvis
->vishandle
) {
2150 _mesa_memcpy(xmvis
->vishandle
, xmvis
->visinfo
, sizeof(XVisualInfo
));
2152 return xmvis
->vishandle
;
2162 Fake_glXCreateWindow( Display
*dpy
, GLXFBConfig config
, Window win
,
2163 const int *attribList
)
2165 XMesaVisual xmvis
= (XMesaVisual
) config
;
2170 xmbuf
= XMesaCreateWindowBuffer(xmvis
, win
);
2175 /* XXX this will segfault if actually called */
2176 FXcreateContext(xmvis
, win
, NULL
, xmbuf
);
2180 (void) attribList
; /* Ignored in GLX 1.3 */
2182 return win
; /* A hack for now */
2187 Fake_glXDestroyWindow( Display
*dpy
, GLXWindow window
)
2189 XMesaBuffer b
= XMesaFindBuffer(dpy
, (XMesaDrawable
) window
);
2191 XMesaDestroyBuffer(b
);
2192 /* don't destroy X window */
2198 Fake_glXCreatePixmap( Display
*dpy
, GLXFBConfig config
, Pixmap pixmap
,
2199 const int *attribList
)
2201 XMesaVisual v
= (XMesaVisual
) config
;
2204 int target
= 0, format
= 0, mipmap
= 0;
2207 if (!dpy
|| !config
|| !pixmap
)
2210 for (attr
= attribList
; *attr
; attr
++) {
2212 case GLX_TEXTURE_FORMAT_EXT
:
2215 case GLX_TEXTURE_FORMAT_NONE_EXT
:
2216 case GLX_TEXTURE_FORMAT_RGB_EXT
:
2217 case GLX_TEXTURE_FORMAT_RGBA_EXT
:
2225 case GLX_TEXTURE_TARGET_EXT
:
2228 case GLX_TEXTURE_1D_EXT
:
2229 case GLX_TEXTURE_2D_EXT
:
2230 case GLX_TEXTURE_RECTANGLE_EXT
:
2238 case GLX_MIPMAP_TEXTURE_EXT
:
2249 if (format
== GLX_TEXTURE_FORMAT_RGB_EXT
) {
2250 if (get_config(v
, GLX_BIND_TO_TEXTURE_RGB_EXT
,
2251 &value
, GL_TRUE
) != Success
2253 return 0; /* error! */
2256 else if (format
== GLX_TEXTURE_FORMAT_RGBA_EXT
) {
2257 if (get_config(v
, GLX_BIND_TO_TEXTURE_RGBA_EXT
,
2258 &value
, GL_TRUE
) != Success
2260 return 0; /* error! */
2264 if (get_config(v
, GLX_BIND_TO_MIPMAP_TEXTURE_EXT
,
2265 &value
, GL_TRUE
) != Success
2267 return 0; /* error! */
2270 if (target
== GLX_TEXTURE_1D_EXT
) {
2271 if (get_config(v
, GLX_BIND_TO_TEXTURE_TARGETS_EXT
,
2272 &value
, GL_TRUE
) != Success
2273 || (value
& GLX_TEXTURE_1D_BIT_EXT
) == 0) {
2274 return 0; /* error! */
2277 else if (target
== GLX_TEXTURE_2D_EXT
) {
2278 if (get_config(v
, GLX_BIND_TO_TEXTURE_TARGETS_EXT
,
2279 &value
, GL_TRUE
) != Success
2280 || (value
& GLX_TEXTURE_2D_BIT_EXT
) == 0) {
2281 return 0; /* error! */
2284 if (target
== GLX_TEXTURE_RECTANGLE_EXT
) {
2285 if (get_config(v
, GLX_BIND_TO_TEXTURE_TARGETS_EXT
,
2286 &value
, GL_TRUE
) != Success
2287 || (value
& GLX_TEXTURE_RECTANGLE_BIT_EXT
) == 0) {
2288 return 0; /* error! */
2292 if (format
|| target
|| mipmap
) {
2293 /* texture from pixmap */
2294 b
= XMesaCreatePixmapTextureBuffer(v
, pixmap
, 0, format
, target
, mipmap
);
2297 b
= XMesaCreatePixmapBuffer( v
, pixmap
, 0 );
2308 Fake_glXDestroyPixmap( Display
*dpy
, GLXPixmap pixmap
)
2310 XMesaBuffer b
= XMesaFindBuffer(dpy
, (XMesaDrawable
)pixmap
);
2312 XMesaDestroyBuffer(b
);
2313 /* don't destroy X pixmap */
2318 Fake_glXCreatePbuffer( Display
*dpy
, GLXFBConfig config
,
2319 const int *attribList
)
2321 XMesaVisual xmvis
= (XMesaVisual
) config
;
2324 int width
= 0, height
= 0;
2325 GLboolean useLargest
= GL_FALSE
, preserveContents
= GL_FALSE
;
2329 for (attrib
= attribList
; *attrib
; attrib
++) {
2331 case GLX_PBUFFER_WIDTH
:
2335 case GLX_PBUFFER_HEIGHT
:
2339 case GLX_PRESERVED_CONTENTS
:
2341 preserveContents
= *attrib
; /* ignored */
2343 case GLX_LARGEST_PBUFFER
:
2345 useLargest
= *attrib
; /* ignored */
2352 /* not used at this time */
2354 (void) preserveContents
;
2356 if (width
== 0 || height
== 0)
2359 xmbuf
= XMesaCreatePBuffer( xmvis
, 0, width
, height
);
2360 /* A GLXPbuffer handle must be an X Drawable because that's what
2361 * glXMakeCurrent takes.
2364 return (GLXPbuffer
) xmbuf
->drawable
;
2371 Fake_glXDestroyPbuffer( Display
*dpy
, GLXPbuffer pbuf
)
2373 XMesaBuffer b
= XMesaFindBuffer(dpy
, pbuf
);
2375 XMesaDestroyBuffer(b
);
2381 Fake_glXQueryDrawable( Display
*dpy
, GLXDrawable draw
, int attribute
,
2382 unsigned int *value
)
2384 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, draw
);
2388 switch (attribute
) {
2390 *value
= xmesa_buffer_width(xmbuf
);
2393 *value
= xmesa_buffer_width(xmbuf
);
2395 case GLX_PRESERVED_CONTENTS
:
2398 case GLX_LARGEST_PBUFFER
:
2399 *value
= xmesa_buffer_width(xmbuf
) * xmesa_buffer_height(xmbuf
);
2401 case GLX_FBCONFIG_ID
:
2402 *value
= xmbuf
->xm_visual
->visinfo
->visualid
;
2404 #ifdef GLX_EXT_texture_from_pixmap
2405 case GLX_TEXTURE_FORMAT_EXT
:
2406 *value
= xmbuf
->TextureFormat
;
2408 case GLX_TEXTURE_TARGET_EXT
:
2409 *value
= xmbuf
->TextureTarget
;
2411 case GLX_MIPMAP_TEXTURE_EXT
:
2412 *value
= xmbuf
->TextureMipmap
;
2417 return; /* raise BadValue error */
2423 Fake_glXCreateNewContext( Display
*dpy
, GLXFBConfig config
,
2424 int renderType
, GLXContext shareList
, Bool direct
)
2426 struct fake_glx_context
*glxCtx
;
2427 struct fake_glx_context
*shareCtx
= (struct fake_glx_context
*) shareList
;
2428 XMesaVisual xmvis
= (XMesaVisual
) config
;
2430 if (!dpy
|| !config
||
2431 (renderType
!= GLX_RGBA_TYPE
&& renderType
!= GLX_COLOR_INDEX_TYPE
))
2434 glxCtx
= CALLOC_STRUCT(fake_glx_context
);
2438 /* deallocate unused windows/buffers */
2439 XMesaGarbageCollect();
2441 glxCtx
->xmesaContext
= XMesaCreateContext(xmvis
,
2442 shareCtx
? shareCtx
->xmesaContext
: NULL
);
2443 if (!glxCtx
->xmesaContext
) {
2448 glxCtx
->glxContext
.isDirect
= GL_FALSE
;
2449 glxCtx
->glxContext
.currentDpy
= dpy
;
2450 glxCtx
->glxContext
.xid
= (XID
) glxCtx
; /* self pointer */
2452 assert((void *) glxCtx
== (void *) &(glxCtx
->glxContext
));
2454 return (GLXContext
) glxCtx
;
2459 Fake_glXQueryContext( Display
*dpy
, GLXContext ctx
, int attribute
, int *value
)
2461 struct fake_glx_context
*glxCtx
= (struct fake_glx_context
*) ctx
;
2462 XMesaContext xmctx
= glxCtx
->xmesaContext
;
2467 switch (attribute
) {
2468 case GLX_FBCONFIG_ID
:
2469 *value
= xmctx
->xm_visual
->visinfo
->visualid
;
2471 case GLX_RENDER_TYPE
:
2472 if (xmctx
->xm_visual
->mesa_visual
.rgbMode
)
2473 *value
= GLX_RGBA_BIT
;
2475 *value
= GLX_COLOR_INDEX_BIT
;
2481 return GLX_BAD_ATTRIBUTE
;
2488 Fake_glXSelectEvent( Display
*dpy
, GLXDrawable drawable
, unsigned long mask
)
2490 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2492 xmbuf
->selectedEvents
= mask
;
2497 Fake_glXGetSelectedEvent( Display
*dpy
, GLXDrawable drawable
,
2498 unsigned long *mask
)
2500 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2502 *mask
= xmbuf
->selectedEvents
;
2509 /*** GLX_SGI_swap_control ***/
2512 Fake_glXSwapIntervalSGI(int interval
)
2520 /*** GLX_SGI_video_sync ***/
2522 static unsigned int FrameCounter
= 0;
2525 Fake_glXGetVideoSyncSGI(unsigned int *count
)
2527 /* this is a bogus implementation */
2528 *count
= FrameCounter
++;
2533 Fake_glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
2535 if (divisor
<= 0 || remainder
< 0)
2536 return GLX_BAD_VALUE
;
2537 /* this is a bogus implementation */
2539 while (FrameCounter
% divisor
!= remainder
)
2541 *count
= FrameCounter
;
2547 /*** GLX_SGI_make_current_read ***/
2550 Fake_glXMakeCurrentReadSGI(Display
*dpy
, GLXDrawable draw
, GLXDrawable read
, GLXContext ctx
)
2552 return Fake_glXMakeContextCurrent( dpy
, draw
, read
, ctx
);
2557 Fake_glXGetCurrentReadDrawableSGI(void)
2564 /*** GLX_SGIX_video_source ***/
2567 static GLXVideoSourceSGIX
2568 Fake_glXCreateGLXVideoSourceSGIX(Display
*dpy
, int screen
, VLServer server
, VLPath path
, int nodeClass
, VLNode drainNode
)
2580 Fake_glXDestroyGLXVideoSourceSGIX(Display
*dpy
, GLXVideoSourceSGIX src
)
2589 /*** GLX_EXT_import_context ***/
2592 Fake_glXFreeContextEXT(Display
*dpy
, GLXContext context
)
2599 Fake_glXGetContextIDEXT(const GLXContext context
)
2606 Fake_glXImportContextEXT(Display
*dpy
, GLXContextID contextID
)
2614 Fake_glXQueryContextInfoEXT(Display
*dpy
, GLXContext context
, int attribute
, int *value
)
2625 /*** GLX_SGIX_fbconfig ***/
2628 Fake_glXGetFBConfigAttribSGIX(Display
*dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
)
2630 return Fake_glXGetFBConfigAttrib(dpy
, config
, attribute
, value
);
2633 static GLXFBConfigSGIX
*
2634 Fake_glXChooseFBConfigSGIX(Display
*dpy
, int screen
, int *attrib_list
, int *nelements
)
2636 return (GLXFBConfig
*) Fake_glXChooseFBConfig(dpy
, screen
, attrib_list
, nelements
);
2641 Fake_glXCreateGLXPixmapWithConfigSGIX(Display
*dpy
, GLXFBConfigSGIX config
, Pixmap pixmap
)
2643 XMesaVisual xmvis
= (XMesaVisual
) config
;
2644 XMesaBuffer xmbuf
= XMesaCreatePixmapBuffer(xmvis
, pixmap
, 0);
2645 return xmbuf
->drawable
; /* need to return an X ID */
2650 Fake_glXCreateContextWithConfigSGIX(Display
*dpy
, GLXFBConfigSGIX config
, int render_type
, GLXContext share_list
, Bool direct
)
2652 XMesaVisual xmvis
= (XMesaVisual
) config
;
2653 struct fake_glx_context
*glxCtx
;
2654 struct fake_glx_context
*shareCtx
= (struct fake_glx_context
*) share_list
;
2656 glxCtx
= CALLOC_STRUCT(fake_glx_context
);
2660 /* deallocate unused windows/buffers */
2661 XMesaGarbageCollect();
2663 glxCtx
->xmesaContext
= XMesaCreateContext(xmvis
,
2664 shareCtx
? shareCtx
->xmesaContext
: NULL
);
2665 if (!glxCtx
->xmesaContext
) {
2670 glxCtx
->glxContext
.isDirect
= GL_FALSE
;
2671 glxCtx
->glxContext
.currentDpy
= dpy
;
2672 glxCtx
->glxContext
.xid
= (XID
) glxCtx
; /* self pointer */
2674 assert((void *) glxCtx
== (void *) &(glxCtx
->glxContext
));
2676 return (GLXContext
) glxCtx
;
2680 static XVisualInfo
*
2681 Fake_glXGetVisualFromFBConfigSGIX(Display
*dpy
, GLXFBConfigSGIX config
)
2683 return Fake_glXGetVisualFromFBConfig(dpy
, config
);
2687 static GLXFBConfigSGIX
2688 Fake_glXGetFBConfigFromVisualSGIX(Display
*dpy
, XVisualInfo
*vis
)
2690 XMesaVisual xmvis
= find_glx_visual(dpy
, vis
);
2692 /* This visual wasn't found with glXChooseVisual() */
2693 xmvis
= create_glx_visual(dpy
, vis
);
2696 return (GLXFBConfigSGIX
) xmvis
;
2701 /*** GLX_SGIX_pbuffer ***/
2703 static GLXPbufferSGIX
2704 Fake_glXCreateGLXPbufferSGIX(Display
*dpy
, GLXFBConfigSGIX config
,
2705 unsigned int width
, unsigned int height
,
2708 XMesaVisual xmvis
= (XMesaVisual
) config
;
2711 GLboolean useLargest
= GL_FALSE
, preserveContents
= GL_FALSE
;
2715 for (attrib
= attribList
; attrib
&& *attrib
; attrib
++) {
2717 case GLX_PRESERVED_CONTENTS_SGIX
:
2719 preserveContents
= *attrib
; /* ignored */
2721 case GLX_LARGEST_PBUFFER_SGIX
:
2723 useLargest
= *attrib
; /* ignored */
2730 /* not used at this time */
2732 (void) preserveContents
;
2734 xmbuf
= XMesaCreatePBuffer( xmvis
, 0, width
, height
);
2735 /* A GLXPbuffer handle must be an X Drawable because that's what
2736 * glXMakeCurrent takes.
2738 return (GLXPbuffer
) xmbuf
->drawable
;
2743 Fake_glXDestroyGLXPbufferSGIX(Display
*dpy
, GLXPbufferSGIX pbuf
)
2745 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, pbuf
);
2747 XMesaDestroyBuffer(xmbuf
);
2753 Fake_glXQueryGLXPbufferSGIX(Display
*dpy
, GLXPbufferSGIX pbuf
, int attribute
, unsigned int *value
)
2755 const XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, pbuf
);
2758 /* Generate GLXBadPbufferSGIX for bad pbuffer */
2762 switch (attribute
) {
2763 case GLX_PRESERVED_CONTENTS_SGIX
:
2766 case GLX_LARGEST_PBUFFER_SGIX
:
2767 *value
= xmesa_buffer_width(xmbuf
) * xmesa_buffer_height(xmbuf
);
2769 case GLX_WIDTH_SGIX
:
2770 *value
= xmesa_buffer_width(xmbuf
);
2772 case GLX_HEIGHT_SGIX
:
2773 *value
= xmesa_buffer_height(xmbuf
);
2775 case GLX_EVENT_MASK_SGIX
:
2776 *value
= 0; /* XXX might be wrong */
2786 Fake_glXSelectEventSGIX(Display
*dpy
, GLXDrawable drawable
, unsigned long mask
)
2788 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2790 /* Note: we'll never generate clobber events */
2791 xmbuf
->selectedEvents
= mask
;
2797 Fake_glXGetSelectedEventSGIX(Display
*dpy
, GLXDrawable drawable
, unsigned long *mask
)
2799 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2801 *mask
= xmbuf
->selectedEvents
;
2810 /*** GLX_SGI_cushion ***/
2813 Fake_glXCushionSGI(Display
*dpy
, Window win
, float cushion
)
2822 /*** GLX_SGIX_video_resize ***/
2825 Fake_glXBindChannelToWindowSGIX(Display
*dpy
, int screen
, int channel
, Window window
)
2835 Fake_glXChannelRectSGIX(Display
*dpy
, int screen
, int channel
, int x
, int y
, int w
, int h
)
2848 Fake_glXQueryChannelRectSGIX(Display
*dpy
, int screen
, int channel
, int *x
, int *y
, int *w
, int *h
)
2861 Fake_glXQueryChannelDeltasSGIX(Display
*dpy
, int screen
, int channel
, int *dx
, int *dy
, int *dw
, int *dh
)
2874 Fake_glXChannelRectSyncSGIX(Display
*dpy
, int screen
, int channel
, GLenum synctype
)
2885 /*** GLX_SGIX_dmbuffer **/
2887 #if defined(_DM_BUFFER_H_)
2889 Fake_glXAssociateDMPbufferSGIX(Display
*dpy
, GLXPbufferSGIX pbuffer
, DMparams
*params
, DMbuffer dmbuffer
)
2900 /*** GLX_SGIX_swap_group ***/
2903 Fake_glXJoinSwapGroupSGIX(Display
*dpy
, GLXDrawable drawable
, GLXDrawable member
)
2912 /*** GLX_SGIX_swap_barrier ***/
2915 Fake_glXBindSwapBarrierSGIX(Display
*dpy
, GLXDrawable drawable
, int barrier
)
2923 Fake_glXQueryMaxSwapBarriersSGIX(Display
*dpy
, int screen
, int *max
)
2933 /*** GLX_SUN_get_transparent_index ***/
2936 Fake_glXGetTransparentIndexSUN(Display
*dpy
, Window overlay
, Window underlay
, long *pTransparent
)
2941 (void) pTransparent
;
2947 /*** GLX_MESA_release_buffers ***/
2950 * Release the depth, stencil, accum buffers attached to a GLXDrawable
2951 * (a window or pixmap) prior to destroying the GLXDrawable.
2954 Fake_glXReleaseBuffersMESA( Display
*dpy
, GLXDrawable d
)
2956 XMesaBuffer b
= XMesaFindBuffer(dpy
, d
);
2958 XMesaDestroyBuffer(b
);
2966 /*** GLX_MESA_set_3dfx_mode ***/
2969 Fake_glXSet3DfxModeMESA( int mode
)
2971 return XMesaSetFXmode( mode
);
2976 /*** GLX_NV_vertex_array range ***/
2978 Fake_glXAllocateMemoryNV( GLsizei size
,
2979 GLfloat readFrequency
,
2980 GLfloat writeFrequency
,
2984 (void) readFrequency
;
2985 (void) writeFrequency
;
2992 Fake_glXFreeMemoryNV( GLvoid
*pointer
)
2998 /*** GLX_MESA_agp_offset ***/
3001 Fake_glXGetAGPOffsetMESA( const GLvoid
*pointer
)
3008 /*** GLX_EXT_texture_from_pixmap ***/
3011 Fake_glXBindTexImageEXT(Display
*dpy
, GLXDrawable drawable
, int buffer
,
3012 const int *attrib_list
)
3014 XMesaBuffer b
= XMesaFindBuffer(dpy
, drawable
);
3016 XMesaBindTexImage(dpy
, b
, buffer
, attrib_list
);
3020 Fake_glXReleaseTexImageEXT(Display
*dpy
, GLXDrawable drawable
, int buffer
)
3022 XMesaBuffer b
= XMesaFindBuffer(dpy
, drawable
);
3024 XMesaReleaseTexImage(dpy
, b
, buffer
);
3028 /* silence warning */
3029 extern struct _glxapi_table
*_mesa_GetGLXDispatchTable(void);
3033 * Create a new GLX API dispatch table with its function pointers
3034 * initialized to point to Mesa's "fake" GLX API functions.
3035 * Note: there's a similar function (_real_GetGLXDispatchTable) that
3036 * returns a new dispatch table with all pointers initalized to point
3037 * to "real" GLX functions (which understand GLX wire protocol, etc).
3039 struct _glxapi_table
*
3040 _mesa_GetGLXDispatchTable(void)
3042 static struct _glxapi_table glx
;
3044 /* be sure our dispatch table size <= libGL's table */
3046 GLuint size
= sizeof(struct _glxapi_table
) / sizeof(void *);
3048 assert(_glxapi_get_dispatch_table_size() >= size
);
3051 /* initialize the whole table to no-ops */
3052 _glxapi_set_no_op_table(&glx
);
3054 /* now initialize the table with the functions I implement */
3055 glx
.ChooseVisual
= Fake_glXChooseVisual
;
3056 glx
.CopyContext
= Fake_glXCopyContext
;
3057 glx
.CreateContext
= Fake_glXCreateContext
;
3058 glx
.CreateGLXPixmap
= Fake_glXCreateGLXPixmap
;
3059 glx
.DestroyContext
= Fake_glXDestroyContext
;
3060 glx
.DestroyGLXPixmap
= Fake_glXDestroyGLXPixmap
;
3061 glx
.GetConfig
= Fake_glXGetConfig
;
3062 /*glx.GetCurrentContext = Fake_glXGetCurrentContext;*/
3063 /*glx.GetCurrentDrawable = Fake_glXGetCurrentDrawable;*/
3064 glx
.IsDirect
= Fake_glXIsDirect
;
3065 glx
.MakeCurrent
= Fake_glXMakeCurrent
;
3066 glx
.QueryExtension
= Fake_glXQueryExtension
;
3067 glx
.QueryVersion
= Fake_glXQueryVersion
;
3068 glx
.SwapBuffers
= Fake_glXSwapBuffers
;
3069 glx
.UseXFont
= Fake_glXUseXFont
;
3070 glx
.WaitGL
= Fake_glXWaitGL
;
3071 glx
.WaitX
= Fake_glXWaitX
;
3073 /*** GLX_VERSION_1_1 ***/
3074 glx
.GetClientString
= Fake_glXGetClientString
;
3075 glx
.QueryExtensionsString
= Fake_glXQueryExtensionsString
;
3076 glx
.QueryServerString
= Fake_glXQueryServerString
;
3078 /*** GLX_VERSION_1_2 ***/
3079 /*glx.GetCurrentDisplay = Fake_glXGetCurrentDisplay;*/
3081 /*** GLX_VERSION_1_3 ***/
3082 glx
.ChooseFBConfig
= Fake_glXChooseFBConfig
;
3083 glx
.CreateNewContext
= Fake_glXCreateNewContext
;
3084 glx
.CreatePbuffer
= Fake_glXCreatePbuffer
;
3085 glx
.CreatePixmap
= Fake_glXCreatePixmap
;
3086 glx
.CreateWindow
= Fake_glXCreateWindow
;
3087 glx
.DestroyPbuffer
= Fake_glXDestroyPbuffer
;
3088 glx
.DestroyPixmap
= Fake_glXDestroyPixmap
;
3089 glx
.DestroyWindow
= Fake_glXDestroyWindow
;
3090 /*glx.GetCurrentReadDrawable = Fake_glXGetCurrentReadDrawable;*/
3091 glx
.GetFBConfigAttrib
= Fake_glXGetFBConfigAttrib
;
3092 glx
.GetFBConfigs
= Fake_glXGetFBConfigs
;
3093 glx
.GetSelectedEvent
= Fake_glXGetSelectedEvent
;
3094 glx
.GetVisualFromFBConfig
= Fake_glXGetVisualFromFBConfig
;
3095 glx
.MakeContextCurrent
= Fake_glXMakeContextCurrent
;
3096 glx
.QueryContext
= Fake_glXQueryContext
;
3097 glx
.QueryDrawable
= Fake_glXQueryDrawable
;
3098 glx
.SelectEvent
= Fake_glXSelectEvent
;
3100 /*** GLX_SGI_swap_control ***/
3101 glx
.SwapIntervalSGI
= Fake_glXSwapIntervalSGI
;
3103 /*** GLX_SGI_video_sync ***/
3104 glx
.GetVideoSyncSGI
= Fake_glXGetVideoSyncSGI
;
3105 glx
.WaitVideoSyncSGI
= Fake_glXWaitVideoSyncSGI
;
3107 /*** GLX_SGI_make_current_read ***/
3108 glx
.MakeCurrentReadSGI
= Fake_glXMakeCurrentReadSGI
;
3109 /*glx.GetCurrentReadDrawableSGI = Fake_glXGetCurrentReadDrawableSGI;*/
3111 /*** GLX_SGIX_video_source ***/
3113 glx
.CreateGLXVideoSourceSGIX
= Fake_glXCreateGLXVideoSourceSGIX
;
3114 glx
.DestroyGLXVideoSourceSGIX
= Fake_glXDestroyGLXVideoSourceSGIX
;
3117 /*** GLX_EXT_import_context ***/
3118 glx
.FreeContextEXT
= Fake_glXFreeContextEXT
;
3119 glx
.GetContextIDEXT
= Fake_glXGetContextIDEXT
;
3120 /*glx.GetCurrentDisplayEXT = Fake_glXGetCurrentDisplayEXT;*/
3121 glx
.ImportContextEXT
= Fake_glXImportContextEXT
;
3122 glx
.QueryContextInfoEXT
= Fake_glXQueryContextInfoEXT
;
3124 /*** GLX_SGIX_fbconfig ***/
3125 glx
.GetFBConfigAttribSGIX
= Fake_glXGetFBConfigAttribSGIX
;
3126 glx
.ChooseFBConfigSGIX
= Fake_glXChooseFBConfigSGIX
;
3127 glx
.CreateGLXPixmapWithConfigSGIX
= Fake_glXCreateGLXPixmapWithConfigSGIX
;
3128 glx
.CreateContextWithConfigSGIX
= Fake_glXCreateContextWithConfigSGIX
;
3129 glx
.GetVisualFromFBConfigSGIX
= Fake_glXGetVisualFromFBConfigSGIX
;
3130 glx
.GetFBConfigFromVisualSGIX
= Fake_glXGetFBConfigFromVisualSGIX
;
3132 /*** GLX_SGIX_pbuffer ***/
3133 glx
.CreateGLXPbufferSGIX
= Fake_glXCreateGLXPbufferSGIX
;
3134 glx
.DestroyGLXPbufferSGIX
= Fake_glXDestroyGLXPbufferSGIX
;
3135 glx
.QueryGLXPbufferSGIX
= Fake_glXQueryGLXPbufferSGIX
;
3136 glx
.SelectEventSGIX
= Fake_glXSelectEventSGIX
;
3137 glx
.GetSelectedEventSGIX
= Fake_glXGetSelectedEventSGIX
;
3139 /*** GLX_SGI_cushion ***/
3140 glx
.CushionSGI
= Fake_glXCushionSGI
;
3142 /*** GLX_SGIX_video_resize ***/
3143 glx
.BindChannelToWindowSGIX
= Fake_glXBindChannelToWindowSGIX
;
3144 glx
.ChannelRectSGIX
= Fake_glXChannelRectSGIX
;
3145 glx
.QueryChannelRectSGIX
= Fake_glXQueryChannelRectSGIX
;
3146 glx
.QueryChannelDeltasSGIX
= Fake_glXQueryChannelDeltasSGIX
;
3147 glx
.ChannelRectSyncSGIX
= Fake_glXChannelRectSyncSGIX
;
3149 /*** GLX_SGIX_dmbuffer **/
3150 #if defined(_DM_BUFFER_H_)
3151 glx
.AssociateDMPbufferSGIX
= NULL
;
3154 /*** GLX_SGIX_swap_group ***/
3155 glx
.JoinSwapGroupSGIX
= Fake_glXJoinSwapGroupSGIX
;
3157 /*** GLX_SGIX_swap_barrier ***/
3158 glx
.BindSwapBarrierSGIX
= Fake_glXBindSwapBarrierSGIX
;
3159 glx
.QueryMaxSwapBarriersSGIX
= Fake_glXQueryMaxSwapBarriersSGIX
;
3161 /*** GLX_SUN_get_transparent_index ***/
3162 glx
.GetTransparentIndexSUN
= Fake_glXGetTransparentIndexSUN
;
3164 /*** GLX_MESA_copy_sub_buffer ***/
3165 glx
.CopySubBufferMESA
= Fake_glXCopySubBufferMESA
;
3167 /*** GLX_MESA_release_buffers ***/
3168 glx
.ReleaseBuffersMESA
= Fake_glXReleaseBuffersMESA
;
3170 /*** GLX_MESA_pixmap_colormap ***/
3171 glx
.CreateGLXPixmapMESA
= Fake_glXCreateGLXPixmapMESA
;
3173 /*** GLX_MESA_set_3dfx_mode ***/
3174 glx
.Set3DfxModeMESA
= Fake_glXSet3DfxModeMESA
;
3176 /*** GLX_NV_vertex_array_range ***/
3177 glx
.AllocateMemoryNV
= Fake_glXAllocateMemoryNV
;
3178 glx
.FreeMemoryNV
= Fake_glXFreeMemoryNV
;
3180 /*** GLX_MESA_agp_offset ***/
3181 glx
.GetAGPOffsetMESA
= Fake_glXGetAGPOffsetMESA
;
3183 /*** GLX_EXT_texture_from_pixmap ***/
3184 glx
.BindTexImageEXT
= Fake_glXBindTexImageEXT
;
3185 glx
.ReleaseTexImageEXT
= Fake_glXReleaseTexImageEXT
;