dri2.c revision f272117def7a7962f355581d038af6d0981a23cb 
1/*
2 * Mesa 3-D graphics library
3 * Version:  7.9
4 *
5 * Copyright 2009, VMware, Inc.
6 * All Rights Reserved.
7 * Copyright (C) 2010 LunarG Inc.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 * Authors:
27 *    Keith Whitwell <keithw@vmware.com>
28 *    Jakob Bornecrantz <wallbraker@gmail.com>
29 *    Chia-I Wu <olv@lunarg.com>
30 */
31
32#include "util/u_memory.h"
33#include "util/u_inlines.h"
34#include "util/u_format.h"
35#include "util/u_debug.h"
36#include "state_tracker/drm_driver.h"
37
38#include "dri_screen.h"
39#include "dri_context.h"
40#include "dri_drawable.h"
41#include "dri2_buffer.h"
42
43/**
44 * DRI2 flush extension.
45 */
46static void
47dri2_flush_drawable(__DRIdrawable *draw)
48{
49   struct dri_drawable *drawable = dri_drawable(draw);
50   struct dri_context *ctx = dri_get_current(draw->driScreenPriv);
51
52   if (ctx)
53      ctx->st->flush(ctx->st, 0, NULL);
54}
55
56static void
57dri2_invalidate_drawable(__DRIdrawable *dPriv)
58{
59   struct dri_drawable *drawable = dri_drawable(dPriv);
60
61   dri2InvalidateDrawable(dPriv);
62   drawable->dPriv->lastStamp = *drawable->dPriv->pStamp;
63
64   p_atomic_inc(&drawable->base.stamp);
65}
66
67static const __DRI2flushExtension dri2FlushExtension = {
68    { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
69    dri2_flush_drawable,
70    dri2_invalidate_drawable,
71};
72
73/**
74 * Retrieve __DRIbuffer from the DRI loader.
75 */
76static __DRIbuffer *
77dri2_drawable_get_buffers(struct dri_drawable *drawable,
78                          const enum st_attachment_type *statts,
79                          unsigned *count)
80{
81   __DRIdrawable *dri_drawable = drawable->dPriv;
82   struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader;
83   boolean with_format;
84   __DRIbuffer *buffers;
85   int num_buffers;
86   unsigned attachments[10];
87   unsigned num_attachments, i;
88
89   assert(loader);
90   with_format = dri_with_format(drawable->sPriv);
91
92   num_attachments = 0;
93
94   /* for Xserver 1.6.0 (DRI2 version 1) we always need to ask for the front */
95   if (!with_format)
96      attachments[num_attachments++] = __DRI_BUFFER_FRONT_LEFT;
97
98   for (i = 0; i < *count; i++) {
99      enum pipe_format format;
100      unsigned bind;
101      int att, bpp;
102
103      dri_drawable_get_format(drawable, statts[i], &format, &bind);
104      if (format == PIPE_FORMAT_NONE)
105         continue;
106
107      switch (statts[i]) {
108      case ST_ATTACHMENT_FRONT_LEFT:
109         /* already added */
110         if (!with_format)
111            continue;
112         att = __DRI_BUFFER_FRONT_LEFT;
113         break;
114      case ST_ATTACHMENT_BACK_LEFT:
115         att = __DRI_BUFFER_BACK_LEFT;
116         break;
117      case ST_ATTACHMENT_FRONT_RIGHT:
118         att = __DRI_BUFFER_FRONT_RIGHT;
119         break;
120      case ST_ATTACHMENT_BACK_RIGHT:
121         att = __DRI_BUFFER_BACK_RIGHT;
122         break;
123      case ST_ATTACHMENT_DEPTH_STENCIL:
124         att = __DRI_BUFFER_DEPTH_STENCIL;
125         break;
126      default:
127         att = -1;
128         break;
129      }
130
131      bpp = util_format_get_blocksizebits(format);
132
133      if (att >= 0) {
134         attachments[num_attachments++] = att;
135         if (with_format) {
136            attachments[num_attachments++] = bpp;
137         }
138      }
139   }
140
141   if (with_format) {
142      num_attachments /= 2;
143      buffers = loader->getBuffersWithFormat(dri_drawable,
144            &dri_drawable->w, &dri_drawable->h,
145            attachments, num_attachments,
146            &num_buffers, dri_drawable->loaderPrivate);
147   }
148   else {
149      buffers = loader->getBuffers(dri_drawable,
150            &dri_drawable->w, &dri_drawable->h,
151            attachments, num_attachments,
152            &num_buffers, dri_drawable->loaderPrivate);
153   }
154
155   if (buffers) {
156      /* set one cliprect to cover the whole dri_drawable */
157      dri_drawable->x = 0;
158      dri_drawable->y = 0;
159      dri_drawable->backX = 0;
160      dri_drawable->backY = 0;
161      dri_drawable->numClipRects = 1;
162      dri_drawable->pClipRects[0].x1 = 0;
163      dri_drawable->pClipRects[0].y1 = 0;
164      dri_drawable->pClipRects[0].x2 = dri_drawable->w;
165      dri_drawable->pClipRects[0].y2 = dri_drawable->h;
166      dri_drawable->numBackClipRects = 1;
167      dri_drawable->pBackClipRects[0].x1 = 0;
168      dri_drawable->pBackClipRects[0].y1 = 0;
169      dri_drawable->pBackClipRects[0].x2 = dri_drawable->w;
170      dri_drawable->pBackClipRects[0].y2 = dri_drawable->h;
171
172      *count = num_buffers;
173   }
174
175   return buffers;
176}
177
178/**
179 * Process __DRIbuffer and convert them into pipe_resources.
180 */
181static void
182dri2_drawable_process_buffers(struct dri_drawable *drawable,
183                              __DRIbuffer *buffers, unsigned count)
184{
185   struct dri_screen *screen = dri_screen(drawable->sPriv);
186   __DRIdrawable *dri_drawable = drawable->dPriv;
187   struct pipe_resource templ;
188   struct winsys_handle whandle;
189   boolean have_depth = FALSE;
190   unsigned i, bind;
191
192   if (drawable->old_num == count &&
193       drawable->old_w == dri_drawable->w &&
194       drawable->old_h == dri_drawable->h &&
195       memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * count) == 0)
196      return;
197
198   for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
199      pipe_resource_reference(&drawable->textures[i], NULL);
200
201   memset(&templ, 0, sizeof(templ));
202   templ.target = screen->target;
203   templ.last_level = 0;
204   templ.width0 = dri_drawable->w;
205   templ.height0 = dri_drawable->h;
206   templ.depth0 = 1;
207   templ.array_size = 1;
208
209   memset(&whandle, 0, sizeof(whandle));
210
211   for (i = 0; i < count; i++) {
212      __DRIbuffer *buf = &buffers[i];
213      enum st_attachment_type statt;
214      enum pipe_format format;
215
216      switch (buf->attachment) {
217      case __DRI_BUFFER_FRONT_LEFT:
218         if (!screen->auto_fake_front) {
219            statt = ST_ATTACHMENT_INVALID;
220            break;
221         }
222         /* fallthrough */
223      case __DRI_BUFFER_FAKE_FRONT_LEFT:
224         statt = ST_ATTACHMENT_FRONT_LEFT;
225         break;
226      case __DRI_BUFFER_BACK_LEFT:
227         statt = ST_ATTACHMENT_BACK_LEFT;
228         break;
229      case __DRI_BUFFER_DEPTH:
230      case __DRI_BUFFER_DEPTH_STENCIL:
231      case __DRI_BUFFER_STENCIL:
232         /* use only the first depth/stencil buffer */
233         if (!have_depth) {
234            have_depth = TRUE;
235            statt = ST_ATTACHMENT_DEPTH_STENCIL;
236         }
237         else {
238            statt = ST_ATTACHMENT_INVALID;
239         }
240         break;
241      default:
242         statt = ST_ATTACHMENT_INVALID;
243         break;
244      }
245
246      dri_drawable_get_format(drawable, statt, &format, &bind);
247      if (statt == ST_ATTACHMENT_INVALID || format == PIPE_FORMAT_NONE)
248         continue;
249
250      templ.format = format;
251      templ.bind = bind;
252      whandle.handle = buf->name;
253      whandle.stride = buf->pitch;
254
255      drawable->textures[statt] =
256         screen->base.screen->resource_from_handle(screen->base.screen,
257               &templ, &whandle);
258   }
259
260   drawable->old_num = count;
261   drawable->old_w = dri_drawable->w;
262   drawable->old_h = dri_drawable->h;
263   memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count);
264}
265
266static __DRIbuffer *
267dri2_allocate_buffer(__DRIscreen *sPriv,
268                     unsigned attachment, unsigned format,
269                     int width, int height)
270{
271   struct dri_screen *screen = dri_screen(sPriv);
272   struct dri2_buffer *buffer;
273   struct pipe_resource templ;
274   enum pipe_format pf;
275   unsigned bind = 0;
276   struct winsys_handle whandle;
277
278   switch (attachment) {
279      case __DRI_BUFFER_FRONT_LEFT:
280      case __DRI_BUFFER_FAKE_FRONT_LEFT:
281         bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
282         break;
283      case __DRI_BUFFER_BACK_LEFT:
284         bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
285         break;
286      case __DRI_BUFFER_DEPTH:
287      case __DRI_BUFFER_DEPTH_STENCIL:
288      case __DRI_BUFFER_STENCIL:
289            bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
290         break;
291   }
292
293   switch (format) {
294      case 32:
295         pf = PIPE_FORMAT_B8G8R8X8_UNORM;
296         break;
297      case 16:
298         pf = PIPE_FORMAT_Z16_UNORM;
299         break;
300      default:
301         return NULL;
302   }
303
304   buffer = CALLOC_STRUCT(dri2_buffer);
305   if (!buffer)
306      return NULL;
307
308   memset(&templ, 0, sizeof(templ));
309   templ.bind = bind;
310   templ.format = pf;
311   templ.target = PIPE_TEXTURE_2D;
312   templ.last_level = 0;
313   templ.width0 = width;
314   templ.height0 = height;
315   templ.depth0 = 1;
316   templ.array_size = 1;
317
318   buffer->resource =
319      screen->base.screen->resource_create(screen->base.screen, &templ);
320   if (!buffer->resource)
321      return NULL;
322
323   memset(&whandle, 0, sizeof(whandle));
324   whandle.type = DRM_API_HANDLE_TYPE_SHARED;
325   screen->base.screen->resource_get_handle(screen->base.screen,
326         buffer->resource, &whandle);
327
328   buffer->base.attachment = attachment;
329   buffer->base.name = whandle.handle;
330   buffer->base.cpp = util_format_get_blocksize(pf);
331   buffer->base.pitch = whandle.stride;
332
333   return &buffer->base;
334}
335
336static void
337dri2_release_buffer(__DRIscreen *sPriv, __DRIbuffer *bPriv)
338{
339   struct dri2_buffer *buffer = dri2_buffer(bPriv);
340
341   pipe_resource_reference(&buffer->resource, NULL);
342   FREE(buffer);
343}
344
345/*
346 * Backend functions for st_framebuffer interface.
347 */
348
349static void
350dri2_allocate_textures(struct dri_drawable *drawable,
351                       const enum st_attachment_type *statts,
352                       unsigned count)
353{
354   __DRIbuffer *buffers;
355   unsigned num_buffers = count;
356
357   buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers);
358   if (buffers)
359      dri2_drawable_process_buffers(drawable, buffers, num_buffers);
360}
361
362static void
363dri2_flush_frontbuffer(struct dri_drawable *drawable,
364                       enum st_attachment_type statt)
365{
366   __DRIdrawable *dri_drawable = drawable->dPriv;
367   struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader;
368
369   if (loader->flushFrontBuffer == NULL)
370      return;
371
372   if (statt == ST_ATTACHMENT_FRONT_LEFT) {
373      loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate);
374   }
375}
376
377static __DRIimage *
378dri2_lookup_egl_image(struct dri_screen *screen, void *handle)
379{
380   __DRIimageLookupExtension *loader = screen->sPriv->dri2.image;
381   __DRIimage *img;
382
383   if (!loader->lookupEGLImage)
384      return NULL;
385
386   img = loader->lookupEGLImage(screen->sPriv,
387				handle, screen->sPriv->loaderPrivate);
388
389   return img;
390}
391
392static __DRIimage *
393dri2_create_image_from_name(__DRIscreen *_screen,
394                            int width, int height, int format,
395                            int name, int pitch, void *loaderPrivate)
396{
397   struct dri_screen *screen = dri_screen(_screen);
398   __DRIimage *img;
399   struct pipe_resource templ;
400   struct winsys_handle whandle;
401   unsigned tex_usage;
402   enum pipe_format pf;
403
404   tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
405
406   switch (format) {
407   case __DRI_IMAGE_FORMAT_RGB565:
408      pf = PIPE_FORMAT_B5G6R5_UNORM;
409      break;
410   case __DRI_IMAGE_FORMAT_XRGB8888:
411      pf = PIPE_FORMAT_B8G8R8X8_UNORM;
412      break;
413   case __DRI_IMAGE_FORMAT_ARGB8888:
414      pf = PIPE_FORMAT_B8G8R8A8_UNORM;
415      break;
416   default:
417      pf = PIPE_FORMAT_NONE;
418      break;
419   }
420   if (pf == PIPE_FORMAT_NONE)
421      return NULL;
422
423   img = CALLOC_STRUCT(__DRIimageRec);
424   if (!img)
425      return NULL;
426
427   memset(&templ, 0, sizeof(templ));
428   templ.bind = tex_usage;
429   templ.format = pf;
430   templ.target = screen->target;
431   templ.last_level = 0;
432   templ.width0 = width;
433   templ.height0 = height;
434   templ.depth0 = 1;
435   templ.array_size = 1;
436
437   memset(&whandle, 0, sizeof(whandle));
438   whandle.handle = name;
439   whandle.stride = pitch * util_format_get_blocksize(pf);
440
441   img->texture = screen->base.screen->resource_from_handle(screen->base.screen,
442         &templ, &whandle);
443   if (!img->texture) {
444      FREE(img);
445      return NULL;
446   }
447
448   img->level = 0;
449   img->layer = 0;
450   img->loader_private = loaderPrivate;
451
452   return img;
453}
454
455static __DRIimage *
456dri2_create_image_from_renderbuffer(__DRIcontext *context,
457				    int renderbuffer, void *loaderPrivate)
458{
459   struct dri_context *ctx = dri_context(context);
460
461   if (!ctx->st->get_resource_for_egl_image)
462      return NULL;
463
464   /* TODO */
465   return NULL;
466}
467
468static __DRIimage *
469dri2_create_image(__DRIscreen *_screen,
470                   int width, int height, int format,
471                   unsigned int use, void *loaderPrivate)
472{
473   struct dri_screen *screen = dri_screen(_screen);
474   __DRIimage *img;
475   struct pipe_resource templ;
476   unsigned tex_usage;
477   enum pipe_format pf;
478
479   tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
480   if (use & __DRI_IMAGE_USE_SCANOUT)
481      tex_usage |= PIPE_BIND_SCANOUT;
482   if (use & __DRI_IMAGE_USE_SHARE)
483      tex_usage |= PIPE_BIND_SHARED;
484   if (use & __DRI_IMAGE_USE_CURSOR) {
485      if (width != 64 || height != 64)
486         return NULL;
487      tex_usage |= PIPE_BIND_CURSOR;
488   }
489
490   switch (format) {
491   case __DRI_IMAGE_FORMAT_RGB565:
492      pf = PIPE_FORMAT_B5G6R5_UNORM;
493      break;
494   case __DRI_IMAGE_FORMAT_XRGB8888:
495      pf = PIPE_FORMAT_B8G8R8X8_UNORM;
496      break;
497   case __DRI_IMAGE_FORMAT_ARGB8888:
498      pf = PIPE_FORMAT_B8G8R8A8_UNORM;
499      break;
500   default:
501      pf = PIPE_FORMAT_NONE;
502      break;
503   }
504   if (pf == PIPE_FORMAT_NONE)
505      return NULL;
506
507   img = CALLOC_STRUCT(__DRIimageRec);
508   if (!img)
509      return NULL;
510
511   memset(&templ, 0, sizeof(templ));
512   templ.bind = tex_usage;
513   templ.format = pf;
514   templ.target = PIPE_TEXTURE_2D;
515   templ.last_level = 0;
516   templ.width0 = width;
517   templ.height0 = height;
518   templ.depth0 = 1;
519   templ.array_size = 1;
520
521   img->texture = screen->base.screen->resource_create(screen->base.screen, &templ);
522   if (!img->texture) {
523      FREE(img);
524      return NULL;
525   }
526
527   img->level = 0;
528   img->layer = 0;
529
530   img->loader_private = loaderPrivate;
531   return img;
532}
533
534static GLboolean
535dri2_query_image(__DRIimage *image, int attrib, int *value)
536{
537   struct winsys_handle whandle;
538   memset(&whandle, 0, sizeof(whandle));
539
540   switch (attrib) {
541   case __DRI_IMAGE_ATTRIB_STRIDE:
542      image->texture->screen->resource_get_handle(image->texture->screen,
543            image->texture, &whandle);
544      *value = whandle.stride;
545      return GL_TRUE;
546   case __DRI_IMAGE_ATTRIB_HANDLE:
547      whandle.type = DRM_API_HANDLE_TYPE_KMS;
548      image->texture->screen->resource_get_handle(image->texture->screen,
549         image->texture, &whandle);
550      *value = whandle.handle;
551      return GL_TRUE;
552   case __DRI_IMAGE_ATTRIB_NAME:
553      whandle.type = DRM_API_HANDLE_TYPE_SHARED;
554      image->texture->screen->resource_get_handle(image->texture->screen,
555         image->texture, &whandle);
556      *value = whandle.handle;
557      return GL_TRUE;
558   default:
559      return GL_FALSE;
560   }
561}
562
563static __DRIimage *
564dri2_dup_image(__DRIimage *image, void *loaderPrivate)
565{
566   __DRIimage *img;
567
568   img = CALLOC_STRUCT(__DRIimageRec);
569   if (!img)
570      return NULL;
571
572   img->texture = NULL;
573   pipe_resource_reference(&img->texture, image->texture);
574   img->level = image->level;
575   img->layer = image->layer;
576   img->loader_private = loaderPrivate;
577
578   return img;
579}
580
581static void
582dri2_destroy_image(__DRIimage *img)
583{
584   pipe_resource_reference(&img->texture, NULL);
585   FREE(img);
586}
587
588static struct __DRIimageExtensionRec dri2ImageExtension = {
589    { __DRI_IMAGE, __DRI_IMAGE_VERSION },
590    dri2_create_image_from_name,
591    dri2_create_image_from_renderbuffer,
592    dri2_destroy_image,
593    dri2_create_image,
594    dri2_query_image,
595    dri2_dup_image,
596};
597
598/*
599 * Backend function init_screen.
600 */
601
602static const __DRIextension *dri_screen_extensions[] = {
603   &driReadDrawableExtension,
604   &driCopySubBufferExtension.base,
605   &driSwapControlExtension.base,
606   &driMediaStreamCounterExtension.base,
607   &driTexBufferExtension.base,
608   &dri2FlushExtension.base,
609   &dri2ImageExtension.base,
610   &dri2ConfigQueryExtension.base,
611   NULL
612};
613
614/**
615 * This is the driver specific part of the createNewScreen entry point.
616 *
617 * Returns the struct gl_config supported by this driver.
618 */
619static const __DRIconfig **
620dri2_init_screen(__DRIscreen * sPriv)
621{
622   const __DRIconfig **configs;
623   struct dri_screen *screen;
624   struct pipe_screen *pscreen;
625
626   screen = CALLOC_STRUCT(dri_screen);
627   if (!screen)
628      return NULL;
629
630   screen->sPriv = sPriv;
631   screen->fd = sPriv->fd;
632
633   sPriv->private = (void *)screen;
634   sPriv->extensions = dri_screen_extensions;
635
636   pscreen = driver_descriptor.create_screen(screen->fd);
637   /* dri_init_screen_helper checks pscreen for us */
638
639   configs = dri_init_screen_helper(screen, pscreen, 32);
640   if (!configs)
641      goto fail;
642
643   sPriv->api_mask = 0;
644   if (screen->st_api->profile_mask & ST_PROFILE_DEFAULT_MASK)
645      sPriv->api_mask |= 1 << __DRI_API_OPENGL;
646   if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES1_MASK)
647      sPriv->api_mask |= 1 << __DRI_API_GLES;
648   if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES2_MASK)
649      sPriv->api_mask |= 1 << __DRI_API_GLES2;
650
651   screen->auto_fake_front = dri_with_format(sPriv);
652   screen->broken_invalidate = !sPriv->dri2.useInvalidate;
653   screen->lookup_egl_image = dri2_lookup_egl_image;
654
655   return configs;
656fail:
657   dri_destroy_screen_helper(screen);
658   FREE(screen);
659   return NULL;
660}
661
662static boolean
663dri2_create_buffer(__DRIscreen * sPriv,
664                   __DRIdrawable * dPriv,
665                   const struct gl_config * visual, boolean isPixmap)
666{
667   struct dri_drawable *drawable = NULL;
668
669   if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
670      return FALSE;
671
672   drawable = dPriv->driverPrivate;
673
674   drawable->allocate_textures = dri2_allocate_textures;
675   drawable->flush_frontbuffer = dri2_flush_frontbuffer;
676
677   return TRUE;
678}
679
680/**
681 * DRI driver virtual function table.
682 *
683 * DRI versions differ in their implementation of init_screen and swap_buffers.
684 */
685const struct __DriverAPIRec driDriverAPI = {
686   .InitScreen = NULL,
687   .InitScreen2 = dri2_init_screen,
688   .DestroyScreen = dri_destroy_screen,
689   .CreateContext = dri_create_context,
690   .DestroyContext = dri_destroy_context,
691   .CreateBuffer = dri2_create_buffer,
692   .DestroyBuffer = dri_destroy_buffer,
693   .MakeCurrent = dri_make_current,
694   .UnbindContext = dri_unbind_context,
695
696   .GetSwapInfo = NULL,
697   .GetDrawableMSC = NULL,
698   .WaitForMSC = NULL,
699
700   .SwapBuffers = NULL,
701   .CopySubBuffer = NULL,
702
703   .AllocateBuffer = dri2_allocate_buffer,
704   .ReleaseBuffer  = dri2_release_buffer,
705};
706
707/* This is the table of extensions that the loader will dlsym() for. */
708PUBLIC const __DRIextension *__driDriverExtensions[] = {
709    &driCoreExtension.base,
710    &driLegacyExtension.base,
711    &driDRI2Extension.base,
712    NULL
713};
714
715/* vim: set sw=3 ts=8 sts=3 expandtab: */
716