2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice including the dates of first publication and
13 * either this permission notice or a reference to
14 * http://oss.sgi.com/projects/FreeB/
15 * shall be included 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 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * Except as contained in this notice, the name of Silicon Graphics, Inc.
26 * shall not be used in advertising or otherwise to promote the sale, use or
27 * other dealings in this Software without prior written authorization from
28 * Silicon Graphics, Inc.
33 * GLX protocol interface boot-strap code.
35 * Direct rendering support added by Precision Insight, Inc.
37 * \author Kevin E. Martin <kevin@precisioninsight.com>
41 #include "glxclient.h"
42 #include <X11/extensions/Xext.h>
43 #include <X11/extensions/extutil.h>
44 #include <X11/extensions/dri2proto.h>
45 #ifdef GLX_USE_APPLEGL
46 #include "apple_glx.h"
47 #include "apple_visual.h"
49 #include "glxextensions.h"
50 #include "glcontextmodes.h"
53 #include <X11/Xlib-xcb.h>
60 void __glXDumpDrawBuffer(__GLXcontext
* ctx
);
64 ** You can set this cell to 1 to force the gl drawing stuff to be
65 ** one command per packet
67 _X_HIDDEN
int __glXDebug
= 0;
69 /* Extension required boiler plate */
71 static const char __glXExtensionName
[] = GLX_EXTENSION_NAME
;
72 static __GLXdisplayPrivate
*glx_displays
;
74 static /* const */ char *error_list
[] = {
80 "GLXBadCurrentWindow",
81 "GLXBadRenderRequest",
83 "GLXUnsupportedPrivateRequest",
86 "GLXBadCurrentDrawable",
90 #ifdef GLX_USE_APPLEGL
91 static char *__glXErrorString(Display
*dpy
, int code
, XExtCodes
*codes
,
96 XEXT_GENERATE_ERROR_STRING(__glXErrorString
, __glXExtensionName
,
97 __GLX_NUMBER_ERRORS
, error_list
)
100 __glXCloseDisplay(Display
* dpy
, XExtCodes
* codes
);
102 __glXWireToEvent(Display
*dpy
, XEvent
*event
, xEvent
*wire
);
104 __glXEventToWire(Display
*dpy
, XEvent
*event
, xEvent
*wire
);
107 * GLX events are a bit funky. We don't stuff the X event code into
108 * our user exposed (via XNextEvent) structure. Instead we use the GLX
109 * private event code namespace (and hope it doesn't conflict). Clients
110 * have to know that bit 15 in the event type field means they're getting
111 * a GLX event, and then handle the various sub-event types there, rather
112 * than simply checking the event code and handling it directly.
116 __glXWireToEvent(Display
*dpy
, XEvent
*event
, xEvent
*wire
)
118 __GLXdisplayPrivate
*glx_dpy
= __glXInitialize(dpy
);
123 switch ((wire
->u
.u
.type
& 0x7f) - glx_dpy
->codes
->first_event
) {
124 case GLX_PbufferClobber
:
126 GLXPbufferClobberEvent
*aevent
= (GLXPbufferClobberEvent
*)event
;
127 xGLXPbufferClobberEvent
*awire
= (xGLXPbufferClobberEvent
*)wire
;
128 aevent
->event_type
= awire
->type
;
129 aevent
->serial
= awire
->sequenceNumber
;
130 aevent
->event_type
= awire
->event_type
;
131 aevent
->draw_type
= awire
->draw_type
;
132 aevent
->drawable
= awire
->drawable
;
133 aevent
->buffer_mask
= awire
->buffer_mask
;
134 aevent
->aux_buffer
= awire
->aux_buffer
;
135 aevent
->x
= awire
->x
;
136 aevent
->y
= awire
->y
;
137 aevent
->width
= awire
->width
;
138 aevent
->height
= awire
->height
;
139 aevent
->count
= awire
->count
;
142 /* No easy symbol to test for this, as GLX_BufferSwapComplete is
143 * defined in the local glx.h header, but the
144 * xGLXBufferSwapComplete typedef is only available in new versions
145 * of the external glxproto.h header, which doesn't have any
146 * testable versioning define.
148 * I'll use the related DRI2 define, in the hope that we won't
149 * receive these events unless we know how to ask for them:
151 #ifdef X_DRI2SwapBuffers
152 case GLX_BufferSwapComplete
:
154 GLXBufferSwapComplete
*aevent
= (GLXBufferSwapComplete
*)event
;
155 xGLXBufferSwapComplete
*awire
= (xGLXBufferSwapComplete
*)wire
;
156 aevent
->event_type
= awire
->event_type
;
157 aevent
->drawable
= awire
->drawable
;
158 aevent
->ust
= ((CARD64
)awire
->ust_hi
<< 32) | awire
->ust_lo
;
159 aevent
->msc
= ((CARD64
)awire
->msc_hi
<< 32) | awire
->msc_lo
;
160 aevent
->sbc
= ((CARD64
)awire
->sbc_hi
<< 32) | awire
->sbc_lo
;
165 /* client doesn't support server event */
172 /* We don't actually support this. It doesn't make sense for clients to
173 * send each other GLX events.
176 __glXEventToWire(Display
*dpy
, XEvent
*event
, xEvent
*wire
)
178 __GLXdisplayPrivate
*glx_dpy
= __glXInitialize(dpy
);
183 switch (event
->type
) {
188 case GLX_EXCHANGE_COMPLETE_INTEL
:
190 case GLX_COPY_COMPLETE_INTEL
:
192 case GLX_FLIP_COMPLETE_INTEL
:
195 /* client doesn't support server event */
202 /************************************************************************/
204 ** Free the per screen configs data as well as the array of
205 ** __glXScreenConfigs.
208 FreeScreenConfigs(__GLXdisplayPrivate
* priv
)
210 __GLXscreenConfigs
*psc
;
213 /* Free screen configuration information */
214 screens
= ScreenCount(priv
->dpy
);
215 for (i
= 0; i
< screens
; i
++) {
216 psc
= priv
->screenConfigs
[i
];
218 _gl_context_modes_destroy(psc
->configs
);
219 if (psc
->effectiveGLXexts
)
220 Xfree(psc
->effectiveGLXexts
);
221 psc
->configs
= NULL
; /* NOTE: just for paranoia */
224 _gl_context_modes_destroy(psc
->visuals
);
225 psc
->visuals
= NULL
; /* NOTE: just for paranoia */
227 Xfree((char *) psc
->serverGLXexts
);
229 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
230 if (psc
->driScreen
) {
231 psc
->driScreen
->destroyScreen(psc
);
232 psc
->driScreen
= NULL
;
240 XFree((char *) priv
->screenConfigs
);
241 priv
->screenConfigs
= NULL
;
245 ** Release the private memory referred to in a display private
246 ** structure. The caller will free the extension structure.
249 __glXCloseDisplay(Display
* dpy
, XExtCodes
* codes
)
251 __GLXdisplayPrivate
*priv
, **prev
;
254 _XLockMutex(_Xglobal_lock
);
255 prev
= &glx_displays
;
256 for (priv
= glx_displays
; priv
; prev
= &priv
->next
, priv
= priv
->next
) {
257 if (priv
->dpy
== dpy
) {
258 (*prev
)->next
= priv
->next
;
262 _XUnlockMutex(_Xglobal_lock
);
264 gc
= __glXGetCurrentContext();
265 if (dpy
== gc
->currentDpy
) {
266 gc
->vtable
->destroy(gc
);
267 __glXSetCurrentContextNull();
270 FreeScreenConfigs(priv
);
271 if (priv
->serverGLXvendor
)
272 Xfree((char *) priv
->serverGLXvendor
);
273 if (priv
->serverGLXversion
)
274 Xfree((char *) priv
->serverGLXversion
);
276 __glxHashDestroy(priv
->drawHash
);
278 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
279 /* Free the direct rendering per display data */
280 if (priv
->driswDisplay
)
281 (*priv
->driswDisplay
->destroyDisplay
) (priv
->driswDisplay
);
282 priv
->driswDisplay
= NULL
;
284 if (priv
->driDisplay
)
285 (*priv
->driDisplay
->destroyDisplay
) (priv
->driDisplay
);
286 priv
->driDisplay
= NULL
;
288 if (priv
->dri2Display
)
289 (*priv
->dri2Display
->destroyDisplay
) (priv
->dri2Display
);
290 priv
->dri2Display
= NULL
;
293 Xfree((char *) priv
);
299 ** Query the version of the GLX extension. This procedure works even if
300 ** the client extension is not completely set up.
303 QueryVersion(Display
* dpy
, int opcode
, int *major
, int *minor
)
306 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
307 xcb_glx_query_version_reply_t
*reply
= xcb_glx_query_version_reply(c
,
308 xcb_glx_query_version
314 if (reply
->major_version
!= GLX_MAJOR_VERSION
) {
318 *major
= reply
->major_version
;
319 *minor
= min(reply
->minor_version
, GLX_MINOR_VERSION
);
323 xGLXQueryVersionReq
*req
;
324 xGLXQueryVersionReply reply
;
326 /* Send the glXQueryVersion request */
328 GetReq(GLXQueryVersion
, req
);
329 req
->reqType
= opcode
;
330 req
->glxCode
= X_GLXQueryVersion
;
331 req
->majorVersion
= GLX_MAJOR_VERSION
;
332 req
->minorVersion
= GLX_MINOR_VERSION
;
333 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
337 if (reply
.majorVersion
!= GLX_MAJOR_VERSION
) {
339 ** The server does not support the same major release as this
344 *major
= reply
.majorVersion
;
345 *minor
= min(reply
.minorVersion
, GLX_MINOR_VERSION
);
351 * We don't want to enable this GLX_OML_swap_method in glxext.h,
352 * because we can't support it. The X server writes it out though,
353 * so we should handle it somehow, to avoid false warnings.
356 IGNORE_GLX_SWAP_METHOD_OML
= 0x8060
361 * getVisualConfigs uses the !tagged_only path.
362 * getFBConfigs uses the tagged_only path.
365 __glXInitializeVisualConfigFromTags(__GLcontextModes
* config
, int count
,
366 const INT32
* bp
, Bool tagged_only
,
367 Bool fbconfig_style_tags
)
372 /* Copy in the first set of properties */
373 config
->visualID
= *bp
++;
375 config
->visualType
= _gl_convert_from_x_visual_type(*bp
++);
377 config
->rgbMode
= *bp
++;
379 config
->redBits
= *bp
++;
380 config
->greenBits
= *bp
++;
381 config
->blueBits
= *bp
++;
382 config
->alphaBits
= *bp
++;
383 config
->accumRedBits
= *bp
++;
384 config
->accumGreenBits
= *bp
++;
385 config
->accumBlueBits
= *bp
++;
386 config
->accumAlphaBits
= *bp
++;
388 config
->doubleBufferMode
= *bp
++;
389 config
->stereoMode
= *bp
++;
391 config
->rgbBits
= *bp
++;
392 config
->depthBits
= *bp
++;
393 config
->stencilBits
= *bp
++;
394 config
->numAuxBuffers
= *bp
++;
395 config
->level
= *bp
++;
397 #ifdef GLX_USE_APPLEGL
398 /* AppleSGLX supports pixmap and pbuffers with all config. */
399 config
->drawableType
= GLX_WINDOW_BIT
| GLX_PIXMAP_BIT
| GLX_PBUFFER_BIT
;
400 /* Unfortunately this can create an ABI compatibility problem. */
403 count
-= __GLX_MIN_CONFIG_PROPS
;
408 ** Additional properties may be in a list at the end
409 ** of the reply. They are in pairs of property type
410 ** and property value.
413 #define FETCH_OR_SET(tag) \
414 config-> tag = ( fbconfig_style_tags ) ? *bp++ : 1
416 for (i
= 0; i
< count
; i
+= 2) {
417 long int tag
= *bp
++;
421 FETCH_OR_SET(rgbMode
);
423 case GLX_BUFFER_SIZE
:
424 config
->rgbBits
= *bp
++;
427 config
->level
= *bp
++;
429 case GLX_DOUBLEBUFFER
:
430 FETCH_OR_SET(doubleBufferMode
);
433 FETCH_OR_SET(stereoMode
);
435 case GLX_AUX_BUFFERS
:
436 config
->numAuxBuffers
= *bp
++;
439 config
->redBits
= *bp
++;
442 config
->greenBits
= *bp
++;
445 config
->blueBits
= *bp
++;
448 config
->alphaBits
= *bp
++;
451 config
->depthBits
= *bp
++;
453 case GLX_STENCIL_SIZE
:
454 config
->stencilBits
= *bp
++;
456 case GLX_ACCUM_RED_SIZE
:
457 config
->accumRedBits
= *bp
++;
459 case GLX_ACCUM_GREEN_SIZE
:
460 config
->accumGreenBits
= *bp
++;
462 case GLX_ACCUM_BLUE_SIZE
:
463 config
->accumBlueBits
= *bp
++;
465 case GLX_ACCUM_ALPHA_SIZE
:
466 config
->accumAlphaBits
= *bp
++;
468 case GLX_VISUAL_CAVEAT_EXT
:
469 config
->visualRating
= *bp
++;
471 case GLX_X_VISUAL_TYPE
:
472 config
->visualType
= *bp
++;
474 case GLX_TRANSPARENT_TYPE
:
475 config
->transparentPixel
= *bp
++;
477 case GLX_TRANSPARENT_INDEX_VALUE
:
478 config
->transparentIndex
= *bp
++;
480 case GLX_TRANSPARENT_RED_VALUE
:
481 config
->transparentRed
= *bp
++;
483 case GLX_TRANSPARENT_GREEN_VALUE
:
484 config
->transparentGreen
= *bp
++;
486 case GLX_TRANSPARENT_BLUE_VALUE
:
487 config
->transparentBlue
= *bp
++;
489 case GLX_TRANSPARENT_ALPHA_VALUE
:
490 config
->transparentAlpha
= *bp
++;
493 config
->visualID
= *bp
++;
495 case GLX_DRAWABLE_TYPE
:
496 config
->drawableType
= *bp
++;
497 #ifdef GLX_USE_APPLEGL
498 /* AppleSGLX supports pixmap and pbuffers with all config. */
499 config
->drawableType
|= GLX_WINDOW_BIT
| GLX_PIXMAP_BIT
| GLX_PBUFFER_BIT
;
502 case GLX_RENDER_TYPE
:
503 config
->renderType
= *bp
++;
505 case GLX_X_RENDERABLE
:
506 config
->xRenderable
= *bp
++;
508 case GLX_FBCONFIG_ID
:
509 config
->fbconfigID
= *bp
++;
511 case GLX_MAX_PBUFFER_WIDTH
:
512 config
->maxPbufferWidth
= *bp
++;
514 case GLX_MAX_PBUFFER_HEIGHT
:
515 config
->maxPbufferHeight
= *bp
++;
517 case GLX_MAX_PBUFFER_PIXELS
:
518 config
->maxPbufferPixels
= *bp
++;
520 #ifndef GLX_USE_APPLEGL
521 case GLX_OPTIMAL_PBUFFER_WIDTH_SGIX
:
522 config
->optimalPbufferWidth
= *bp
++;
524 case GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX
:
525 config
->optimalPbufferHeight
= *bp
++;
527 case GLX_VISUAL_SELECT_GROUP_SGIX
:
528 config
->visualSelectGroup
= *bp
++;
530 case GLX_SWAP_METHOD_OML
:
531 config
->swapMethod
= *bp
++;
534 case GLX_SAMPLE_BUFFERS_SGIS
:
535 config
->sampleBuffers
= *bp
++;
537 case GLX_SAMPLES_SGIS
:
538 config
->samples
= *bp
++;
540 #ifdef GLX_USE_APPLEGL
541 case IGNORE_GLX_SWAP_METHOD_OML
:
542 /* We ignore this tag. See the comment above this function. */
546 case GLX_BIND_TO_TEXTURE_RGB_EXT
:
547 config
->bindToTextureRgb
= *bp
++;
549 case GLX_BIND_TO_TEXTURE_RGBA_EXT
:
550 config
->bindToTextureRgba
= *bp
++;
552 case GLX_BIND_TO_MIPMAP_TEXTURE_EXT
:
553 config
->bindToMipmapTexture
= *bp
++;
555 case GLX_BIND_TO_TEXTURE_TARGETS_EXT
:
556 config
->bindToTextureTargets
= *bp
++;
558 case GLX_Y_INVERTED_EXT
:
559 config
->yInverted
= *bp
++;
563 if (fbconfig_style_tags
)
570 if(getenv("LIBGL_DIAGNOSTIC")) {
571 long int tagvalue
= *bp
++;
572 fprintf(stderr
, "WARNING: unknown GLX tag from server: "
573 "tag 0x%lx value 0x%lx\n", tag
, tagvalue
);
575 /* Ignore the unrecognized tag's value */
583 (config
->rgbMode
) ? GLX_RGBA_BIT
: GLX_COLOR_INDEX_BIT
;
585 config
->haveAccumBuffer
= ((config
->accumRedBits
+
586 config
->accumGreenBits
+
587 config
->accumBlueBits
+
588 config
->accumAlphaBits
) > 0);
589 config
->haveDepthBuffer
= (config
->depthBits
> 0);
590 config
->haveStencilBuffer
= (config
->stencilBits
> 0);
593 static __GLcontextModes
*
594 createConfigsFromProperties(Display
* dpy
, int nvisuals
, int nprops
,
595 int screen
, GLboolean tagged_only
)
597 INT32 buf
[__GLX_TOTAL_CONFIG
], *props
;
599 __GLcontextModes
*modes
, *m
;
605 /* FIXME: Is the __GLX_MIN_CONFIG_PROPS test correct for FBconfigs? */
607 /* Check number of properties */
608 if (nprops
< __GLX_MIN_CONFIG_PROPS
|| nprops
> __GLX_MAX_CONFIG_PROPS
)
611 /* Allocate memory for our config structure */
612 modes
= _gl_context_modes_create(nvisuals
, sizeof(__GLcontextModes
));
616 prop_size
= nprops
* __GLX_SIZE_INT32
;
617 if (prop_size
<= sizeof(buf
))
620 props
= Xmalloc(prop_size
);
622 /* Read each config structure and convert it into our format */
624 for (i
= 0; i
< nvisuals
; i
++) {
625 _XRead(dpy
, (char *) props
, prop_size
);
626 #ifdef GLX_USE_APPLEGL
627 /* Older X servers don't send this so we default it here. */
628 m
->drawableType
= GLX_WINDOW_BIT
;
631 * The XQuartz 2.3.2.1 X server doesn't set this properly, so
632 * set the proper bits here.
633 * AppleSGLX supports windows, pixmaps, and pbuffers with all config.
635 m
->drawableType
= GLX_WINDOW_BIT
| GLX_PIXMAP_BIT
| GLX_PBUFFER_BIT
;
637 __glXInitializeVisualConfigFromTags(m
, nprops
, props
,
638 tagged_only
, GL_TRUE
);
650 getVisualConfigs(__GLXscreenConfigs
*psc
,
651 __GLXdisplayPrivate
*priv
, int screen
)
653 xGLXGetVisualConfigsReq
*req
;
654 xGLXGetVisualConfigsReply reply
;
655 Display
*dpy
= priv
->dpy
;
660 GetReq(GLXGetVisualConfigs
, req
);
661 req
->reqType
= priv
->majorOpcode
;
662 req
->glxCode
= X_GLXGetVisualConfigs
;
663 req
->screen
= screen
;
665 if (!_XReply(dpy
, (xReply
*) & reply
, 0, False
))
668 psc
->visuals
= createConfigsFromProperties(dpy
,
675 return psc
->visuals
!= NULL
;
679 getFBConfigs(__GLXscreenConfigs
*psc
, __GLXdisplayPrivate
*priv
, int screen
)
681 xGLXGetFBConfigsReq
*fb_req
;
682 xGLXGetFBConfigsSGIXReq
*sgi_req
;
683 xGLXVendorPrivateWithReplyReq
*vpreq
;
684 xGLXGetFBConfigsReply reply
;
685 Display
*dpy
= priv
->dpy
;
688 __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
, GLX_EXTENSIONS
);
693 if (atof(priv
->serverGLXversion
) >= 1.3) {
694 GetReq(GLXGetFBConfigs
, fb_req
);
695 fb_req
->reqType
= priv
->majorOpcode
;
696 fb_req
->glxCode
= X_GLXGetFBConfigs
;
697 fb_req
->screen
= screen
;
699 else if (strstr(psc
->serverGLXexts
, "GLX_SGIX_fbconfig") != NULL
) {
700 GetReqExtra(GLXVendorPrivateWithReply
,
701 sz_xGLXGetFBConfigsSGIXReq
+
702 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
703 sgi_req
= (xGLXGetFBConfigsSGIXReq
*) vpreq
;
704 sgi_req
->reqType
= priv
->majorOpcode
;
705 sgi_req
->glxCode
= X_GLXVendorPrivateWithReply
;
706 sgi_req
->vendorCode
= X_GLXvop_GetFBConfigsSGIX
;
707 sgi_req
->screen
= screen
;
712 if (!_XReply(dpy
, (xReply
*) & reply
, 0, False
))
715 psc
->configs
= createConfigsFromProperties(dpy
,
717 reply
.numAttribs
* 2,
722 return psc
->configs
!= NULL
;
726 glx_screen_init(__GLXscreenConfigs
*psc
,
727 int screen
, __GLXdisplayPrivate
* priv
)
729 /* Initialize per screen dynamic client GLX extensions */
730 psc
->ext_list_first_time
= GL_TRUE
;
732 psc
->dpy
= priv
->dpy
;
735 getVisualConfigs(psc
, priv
, screen
);
736 getFBConfigs(psc
, priv
, screen
);
742 ** Allocate the memory for the per screen configs for each screen.
743 ** If that works then fetch the per screen configs data.
746 AllocAndFetchScreenConfigs(Display
* dpy
, __GLXdisplayPrivate
* priv
)
748 __GLXscreenConfigs
*psc
;
752 ** First allocate memory for the array of per screen configs.
754 screens
= ScreenCount(dpy
);
755 priv
->screenConfigs
= Xmalloc(screens
* sizeof *priv
->screenConfigs
);
756 if (!priv
->screenConfigs
)
759 priv
->serverGLXversion
=
760 __glXQueryServerString(dpy
, priv
->majorOpcode
, 0, GLX_VERSION
);
761 if (priv
->serverGLXversion
== NULL
) {
762 FreeScreenConfigs(priv
);
766 for (i
= 0; i
< screens
; i
++, psc
++) {
768 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
769 if (priv
->dri2Display
)
770 psc
= (*priv
->dri2Display
->createScreen
) (i
, priv
);
771 if (psc
== NULL
&& priv
->driDisplay
)
772 psc
= (*priv
->driDisplay
->createScreen
) (i
, priv
);
773 if (psc
== NULL
&& priv
->driswDisplay
)
774 psc
= (*priv
->driswDisplay
->createScreen
) (i
, priv
);
777 psc
= indirect_create_screen(i
, priv
);
778 priv
->screenConfigs
[i
] = psc
;
785 ** Initialize the client side extension code.
787 _X_HIDDEN __GLXdisplayPrivate
*
788 __glXInitialize(Display
* dpy
)
790 __GLXdisplayPrivate
*dpyPriv
;
791 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
792 Bool glx_direct
, glx_accel
;
796 _XLockMutex(_Xglobal_lock
);
798 for (dpyPriv
= glx_displays
; dpyPriv
; dpyPriv
= dpyPriv
->next
) {
799 if (dpyPriv
->dpy
== dpy
) {
800 _XUnlockMutex(_Xglobal_lock
);
805 dpyPriv
= Xcalloc(1, sizeof *dpyPriv
);
809 dpyPriv
->codes
= XInitExtension(dpy
, __glXExtensionName
);
810 if (!dpyPriv
->codes
) {
812 _XUnlockMutex(_Xglobal_lock
);
817 dpyPriv
->majorOpcode
= dpyPriv
->codes
->major_opcode
;
818 dpyPriv
->serverGLXvendor
= 0x0;
819 dpyPriv
->serverGLXversion
= 0x0;
821 /* See if the versions are compatible */
822 if (!QueryVersion(dpy
, dpyPriv
->majorOpcode
,
823 &dpyPriv
->majorVersion
, &dpyPriv
->minorVersion
)) {
825 _XUnlockMutex(_Xglobal_lock
);
829 for (i
= 0; i
< __GLX_NUMBER_EVENTS
; i
++) {
830 XESetWireToEvent(dpy
, dpyPriv
->codes
->first_event
+ i
, __glXWireToEvent
);
831 XESetEventToWire(dpy
, dpyPriv
->codes
->first_event
+ i
, __glXEventToWire
);
834 XESetCloseDisplay(dpy
, dpyPriv
->codes
->extension
, __glXCloseDisplay
);
835 XESetErrorString (dpy
, dpyPriv
->codes
->extension
,__glXErrorString
);
837 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
838 glx_direct
= (getenv("LIBGL_ALWAYS_INDIRECT") == NULL
);
839 glx_accel
= (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL
);
841 dpyPriv
->drawHash
= __glxHashCreate();
844 ** Initialize the direct rendering per display data and functions.
845 ** Note: This _must_ be done before calling any other DRI routines
846 ** (e.g., those called in AllocAndFetchScreenConfigs).
848 if (glx_direct
&& glx_accel
) {
849 dpyPriv
->dri2Display
= dri2CreateDisplay(dpy
);
850 dpyPriv
->driDisplay
= driCreateDisplay(dpy
);
853 dpyPriv
->driswDisplay
= driswCreateDisplay(dpy
);
856 #ifdef GLX_USE_APPLEGL
857 if (apple_init_glx(dpy
)) {
862 if (!AllocAndFetchScreenConfigs(dpy
, dpyPriv
)) {
867 if (dpyPriv
->majorVersion
== 1 && dpyPriv
->minorVersion
>= 1)
868 __glXClientInfo(dpy
, dpyPriv
->majorOpcode
);
870 dpyPriv
->next
= glx_displays
;
871 glx_displays
= dpyPriv
;
873 _XUnlockMutex(_Xglobal_lock
);
879 ** Setup for sending a GLX command on dpy. Make sure the extension is
880 ** initialized. Try to avoid calling __glXInitialize as its kinda slow.
883 __glXSetupForCommand(Display
* dpy
)
886 __GLXdisplayPrivate
*priv
;
888 /* If this thread has a current context, flush its rendering commands */
889 gc
= __glXGetCurrentContext();
890 if (gc
->currentDpy
) {
891 /* Flush rendering buffer of the current context, if any */
892 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
894 if (gc
->currentDpy
== dpy
) {
895 /* Use opcode from gc because its right */
896 return gc
->majorOpcode
;
900 ** Have to get info about argument dpy because it might be to
901 ** a different server
906 /* Forced to lookup extension via the slow initialize route */
907 priv
= __glXInitialize(dpy
);
911 return priv
->majorOpcode
;
915 * Flush the drawing command transport buffer.
917 * \param ctx Context whose transport buffer is to be flushed.
918 * \param pc Pointer to first unused buffer location.
921 * Modify this function to use \c ctx->pc instead of the explicit
925 __glXFlushRenderBuffer(__GLXcontext
* ctx
, GLubyte
* pc
)
927 Display
*const dpy
= ctx
->currentDpy
;
929 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
933 const GLint size
= pc
- ctx
->buf
;
935 if ((dpy
!= NULL
) && (size
> 0)) {
937 xcb_glx_render(c
, ctx
->currentContextTag
, size
,
938 (const uint8_t *) ctx
->buf
);
940 /* Send the entire buffer as an X request */
942 GetReq(GLXRender
, req
);
943 req
->reqType
= ctx
->majorOpcode
;
944 req
->glxCode
= X_GLXRender
;
945 req
->contextTag
= ctx
->currentContextTag
;
946 req
->length
+= (size
+ 3) >> 2;
947 _XSend(dpy
, (char *) ctx
->buf
, size
);
953 /* Reset pointer and return it */
960 * Send a portion of a GLXRenderLarge command to the server. The advantage of
961 * this function over \c __glXSendLargeCommand is that callers can use the
962 * data buffer in the GLX context and may be able to avoid allocating an
963 * extra buffer. The disadvantage is the clients will have to do more
964 * GLX protocol work (i.e., calculating \c totalRequests, etc.).
966 * \sa __glXSendLargeCommand
968 * \param gc GLX context
969 * \param requestNumber Which part of the whole command is this? The first
971 * \param totalRequests How many requests will there be?
972 * \param data Command data.
973 * \param dataLen Size, in bytes, of the command data.
976 __glXSendLargeChunk(__GLXcontext
* gc
, GLint requestNumber
,
977 GLint totalRequests
, const GLvoid
* data
, GLint dataLen
)
979 Display
*dpy
= gc
->currentDpy
;
981 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
982 xcb_glx_render_large(c
, gc
->currentContextTag
, requestNumber
,
983 totalRequests
, dataLen
, data
);
985 xGLXRenderLargeReq
*req
;
987 if (requestNumber
== 1) {
991 GetReq(GLXRenderLarge
, req
);
992 req
->reqType
= gc
->majorOpcode
;
993 req
->glxCode
= X_GLXRenderLarge
;
994 req
->contextTag
= gc
->currentContextTag
;
995 req
->length
+= (dataLen
+ 3) >> 2;
996 req
->requestNumber
= requestNumber
;
997 req
->requestTotal
= totalRequests
;
998 req
->dataBytes
= dataLen
;
999 Data(dpy
, data
, dataLen
);
1001 if (requestNumber
== totalRequests
) {
1005 #endif /* USE_XCB */
1010 * Send a command that is too large for the GLXRender protocol request.
1012 * Send a large command, one that is too large for some reason to
1013 * send using the GLXRender protocol request. One reason to send
1014 * a large command is to avoid copying the data.
1016 * \param ctx GLX context
1017 * \param header Header data.
1018 * \param headerLen Size, in bytes, of the header data. It is assumed that
1019 * the header data will always be small enough to fit in
1020 * a single X protocol packet.
1021 * \param data Command data.
1022 * \param dataLen Size, in bytes, of the command data.
1025 __glXSendLargeCommand(__GLXcontext
* ctx
,
1026 const GLvoid
* header
, GLint headerLen
,
1027 const GLvoid
* data
, GLint dataLen
)
1030 GLint totalRequests
, requestNumber
;
1033 ** Calculate the maximum amount of data can be stuffed into a single
1034 ** packet. sz_xGLXRenderReq is added because bufSize is the maximum
1035 ** packet size minus sz_xGLXRenderReq.
1037 maxSize
= (ctx
->bufSize
+ sz_xGLXRenderReq
) - sz_xGLXRenderLargeReq
;
1038 totalRequests
= 1 + (dataLen
/ maxSize
);
1039 if (dataLen
% maxSize
)
1043 ** Send all of the command, except the large array, as one request.
1045 assert(headerLen
<= maxSize
);
1046 __glXSendLargeChunk(ctx
, 1, totalRequests
, header
, headerLen
);
1049 ** Send enough requests until the whole array is sent.
1051 for (requestNumber
= 2; requestNumber
<= (totalRequests
- 1);
1053 __glXSendLargeChunk(ctx
, requestNumber
, totalRequests
, data
, maxSize
);
1054 data
= (const GLvoid
*) (((const GLubyte
*) data
) + maxSize
);
1056 assert(dataLen
> 0);
1059 assert(dataLen
<= maxSize
);
1060 __glXSendLargeChunk(ctx
, requestNumber
, totalRequests
, data
, dataLen
);
1063 /************************************************************************/
1067 __glXDumpDrawBuffer(__GLXcontext
* ctx
)
1069 GLubyte
*p
= ctx
->buf
;
1070 GLubyte
*end
= ctx
->pc
;
1071 GLushort opcode
, length
;
1075 opcode
= *((GLushort
*) p
);
1076 length
= *((GLushort
*) (p
+ 2));
1077 printf("%2x: %5d: ", opcode
, length
);
1080 while (length
> 0) {
1081 printf("%08x ", *((unsigned *) p
));