dri2.c revision c72d7df16879e3210946ba92a7edc823815b6f16 
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 *dPriv)
48{
49   struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv);
50   struct dri_drawable *drawable = dri_drawable(dPriv);
51
52   struct pipe_resource *ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
53
54   if (ctx) {
55      if (ptex && ctx->pp && drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL])
56         pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
57
58      ctx->st->flush(ctx->st, 0, NULL);
59   }
60}
61
62static void
63dri2_invalidate_drawable(__DRIdrawable *dPriv)
64{
65   struct dri_drawable *drawable = dri_drawable(dPriv);
66
67   dri2InvalidateDrawable(dPriv);
68   drawable->dPriv->lastStamp = drawable->dPriv->dri2.stamp;
69
70   p_atomic_inc(&drawable->base.stamp);
71}
72
73static const __DRI2flushExtension dri2FlushExtension = {
74    { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
75    dri2_flush_drawable,
76    dri2_invalidate_drawable,
77};
78
79/**
80 * Retrieve __DRIbuffer from the DRI loader.
81 */
82static __DRIbuffer *
83dri2_drawable_get_buffers(struct dri_drawable *drawable,
84                          const enum st_attachment_type *statts,
85                          unsigned *count)
86{
87   __DRIdrawable *dri_drawable = drawable->dPriv;
88   struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader;
89   boolean with_format;
90   __DRIbuffer *buffers;
91   int num_buffers;
92   unsigned attachments[10];
93   unsigned num_attachments, i;
94
95   assert(loader);
96   with_format = dri_with_format(drawable->sPriv);
97
98   num_attachments = 0;
99
100   /* for Xserver 1.6.0 (DRI2 version 1) we always need to ask for the front */
101   if (!with_format)
102      attachments[num_attachments++] = __DRI_BUFFER_FRONT_LEFT;
103
104   for (i = 0; i < *count; i++) {
105      enum pipe_format format;
106      unsigned bind;
107      int att, depth;
108
109      dri_drawable_get_format(drawable, statts[i], &format, &bind);
110      if (format == PIPE_FORMAT_NONE)
111         continue;
112
113      switch (statts[i]) {
114      case ST_ATTACHMENT_FRONT_LEFT:
115         /* already added */
116         if (!with_format)
117            continue;
118         att = __DRI_BUFFER_FRONT_LEFT;
119         break;
120      case ST_ATTACHMENT_BACK_LEFT:
121         att = __DRI_BUFFER_BACK_LEFT;
122         break;
123      case ST_ATTACHMENT_FRONT_RIGHT:
124         att = __DRI_BUFFER_FRONT_RIGHT;
125         break;
126      case ST_ATTACHMENT_BACK_RIGHT:
127         att = __DRI_BUFFER_BACK_RIGHT;
128         break;
129      case ST_ATTACHMENT_DEPTH_STENCIL:
130         att = __DRI_BUFFER_DEPTH_STENCIL;
131         break;
132      default:
133         att = -1;
134         break;
135      }
136
137      /*
138       * In this switch statement we must support all formats that
139       * may occur as the stvis->color_format or
140       * stvis->depth_stencil_format.
141       */
142      switch(format) {
143      case PIPE_FORMAT_B8G8R8A8_UNORM:
144	 depth = 32;
145	 break;
146      case PIPE_FORMAT_B8G8R8X8_UNORM:
147	 depth = 24;
148	 break;
149      case PIPE_FORMAT_B5G6R5_UNORM:
150	 depth = 16;
151	 break;
152      case PIPE_FORMAT_Z16_UNORM:
153	 att = __DRI_BUFFER_DEPTH;
154	 depth = 16;
155	 break;
156      case PIPE_FORMAT_Z24X8_UNORM:
157      case PIPE_FORMAT_X8Z24_UNORM:
158	 att = __DRI_BUFFER_DEPTH;
159	 depth = 24;
160	 break;
161      case PIPE_FORMAT_Z24_UNORM_S8_UINT:
162      case PIPE_FORMAT_S8_UINT_Z24_UNORM:
163	 depth = 32;
164	 break;
165      case PIPE_FORMAT_Z32_UNORM:
166	 att = __DRI_BUFFER_DEPTH;
167	 depth = 32;
168	 break;
169      default:
170	 depth = util_format_get_blocksizebits(format);
171	 assert(!"Unexpected format in dri2_drawable_get_buffers()");
172      }
173
174      if (att >= 0) {
175         attachments[num_attachments++] = att;
176         if (with_format) {
177            attachments[num_attachments++] = depth;
178         }
179      }
180   }
181
182   if (with_format) {
183      num_attachments /= 2;
184      buffers = loader->getBuffersWithFormat(dri_drawable,
185            &dri_drawable->w, &dri_drawable->h,
186            attachments, num_attachments,
187            &num_buffers, dri_drawable->loaderPrivate);
188   }
189   else {
190      buffers = loader->getBuffers(dri_drawable,
191            &dri_drawable->w, &dri_drawable->h,
192            attachments, num_attachments,
193            &num_buffers, dri_drawable->loaderPrivate);
194   }
195
196   if (buffers)
197      *count = num_buffers;
198
199   return buffers;
200}
201
202/**
203 * Process __DRIbuffer and convert them into pipe_resources.
204 */
205static void
206dri2_drawable_process_buffers(struct dri_drawable *drawable,
207                              __DRIbuffer *buffers, unsigned count)
208{
209   struct dri_screen *screen = dri_screen(drawable->sPriv);
210   __DRIdrawable *dri_drawable = drawable->dPriv;
211   struct pipe_resource templ;
212   struct winsys_handle whandle;
213   boolean have_depth = FALSE;
214   unsigned i, bind;
215
216   if (drawable->old_num == count &&
217       drawable->old_w == dri_drawable->w &&
218       drawable->old_h == dri_drawable->h &&
219       memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * count) == 0)
220      return;
221
222   for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
223      pipe_resource_reference(&drawable->textures[i], NULL);
224
225   memset(&templ, 0, sizeof(templ));
226   templ.target = screen->target;
227   templ.last_level = 0;
228   templ.width0 = dri_drawable->w;
229   templ.height0 = dri_drawable->h;
230   templ.depth0 = 1;
231   templ.array_size = 1;
232
233   memset(&whandle, 0, sizeof(whandle));
234
235   for (i = 0; i < count; i++) {
236      __DRIbuffer *buf = &buffers[i];
237      enum st_attachment_type statt;
238      enum pipe_format format;
239
240      switch (buf->attachment) {
241      case __DRI_BUFFER_FRONT_LEFT:
242         if (!screen->auto_fake_front) {
243            statt = ST_ATTACHMENT_INVALID;
244            break;
245         }
246         /* fallthrough */
247      case __DRI_BUFFER_FAKE_FRONT_LEFT:
248         statt = ST_ATTACHMENT_FRONT_LEFT;
249         break;
250      case __DRI_BUFFER_BACK_LEFT:
251         statt = ST_ATTACHMENT_BACK_LEFT;
252         break;
253      case __DRI_BUFFER_DEPTH:
254      case __DRI_BUFFER_DEPTH_STENCIL:
255      case __DRI_BUFFER_STENCIL:
256         /* use only the first depth/stencil buffer */
257         if (!have_depth) {
258            have_depth = TRUE;
259            statt = ST_ATTACHMENT_DEPTH_STENCIL;
260         }
261         else {
262            statt = ST_ATTACHMENT_INVALID;
263         }
264         break;
265      default:
266         statt = ST_ATTACHMENT_INVALID;
267         break;
268      }
269
270      dri_drawable_get_format(drawable, statt, &format, &bind);
271      if (statt == ST_ATTACHMENT_INVALID || format == PIPE_FORMAT_NONE)
272         continue;
273
274      templ.format = format;
275      templ.bind = bind;
276      whandle.handle = buf->name;
277      whandle.stride = buf->pitch;
278
279      drawable->textures[statt] =
280         screen->base.screen->resource_from_handle(screen->base.screen,
281               &templ, &whandle);
282   }
283
284   drawable->old_num = count;
285   drawable->old_w = dri_drawable->w;
286   drawable->old_h = dri_drawable->h;
287   memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count);
288}
289
290static __DRIbuffer *
291dri2_allocate_buffer(__DRIscreen *sPriv,
292                     unsigned attachment, unsigned format,
293                     int width, int height)
294{
295   struct dri_screen *screen = dri_screen(sPriv);
296   struct dri2_buffer *buffer;
297   struct pipe_resource templ;
298   enum pipe_format pf;
299   unsigned bind = 0;
300   struct winsys_handle whandle;
301
302   switch (attachment) {
303      case __DRI_BUFFER_FRONT_LEFT:
304      case __DRI_BUFFER_FAKE_FRONT_LEFT:
305         bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
306         break;
307      case __DRI_BUFFER_BACK_LEFT:
308         bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
309         break;
310      case __DRI_BUFFER_DEPTH:
311      case __DRI_BUFFER_DEPTH_STENCIL:
312      case __DRI_BUFFER_STENCIL:
313            bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
314         break;
315   }
316
317   switch (format) {
318      case 32:
319         pf = PIPE_FORMAT_B8G8R8A8_UNORM;
320         break;
321      case 24:
322         pf = PIPE_FORMAT_B8G8R8X8_UNORM;
323         break;
324      case 16:
325         pf = PIPE_FORMAT_Z16_UNORM;
326         break;
327      default:
328         return NULL;
329   }
330
331   buffer = CALLOC_STRUCT(dri2_buffer);
332   if (!buffer)
333      return NULL;
334
335   memset(&templ, 0, sizeof(templ));
336   templ.bind = bind;
337   templ.format = pf;
338   templ.target = PIPE_TEXTURE_2D;
339   templ.last_level = 0;
340   templ.width0 = width;
341   templ.height0 = height;
342   templ.depth0 = 1;
343   templ.array_size = 1;
344
345   buffer->resource =
346      screen->base.screen->resource_create(screen->base.screen, &templ);
347   if (!buffer->resource) {
348      FREE(buffer);
349      return NULL;
350   }
351
352   memset(&whandle, 0, sizeof(whandle));
353   whandle.type = DRM_API_HANDLE_TYPE_SHARED;
354   screen->base.screen->resource_get_handle(screen->base.screen,
355         buffer->resource, &whandle);
356
357   buffer->base.attachment = attachment;
358   buffer->base.name = whandle.handle;
359   buffer->base.cpp = util_format_get_blocksize(pf);
360   buffer->base.pitch = whandle.stride;
361
362   return &buffer->base;
363}
364
365static void
366dri2_release_buffer(__DRIscreen *sPriv, __DRIbuffer *bPriv)
367{
368   struct dri2_buffer *buffer = dri2_buffer(bPriv);
369
370   pipe_resource_reference(&buffer->resource, NULL);
371   FREE(buffer);
372}
373
374/*
375 * Backend functions for st_framebuffer interface.
376 */
377
378static void
379dri2_allocate_textures(struct dri_drawable *drawable,
380                       const enum st_attachment_type *statts,
381                       unsigned count)
382{
383   __DRIbuffer *buffers;
384   unsigned num_buffers = count;
385
386   buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers);
387   if (buffers)
388      dri2_drawable_process_buffers(drawable, buffers, num_buffers);
389}
390
391static void
392dri2_flush_frontbuffer(struct dri_drawable *drawable,
393                       enum st_attachment_type statt)
394{
395   __DRIdrawable *dri_drawable = drawable->dPriv;
396   struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader;
397
398   if (loader->flushFrontBuffer == NULL)
399      return;
400
401   if (statt == ST_ATTACHMENT_FRONT_LEFT) {
402      loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate);
403   }
404}
405
406static void
407dri2_update_tex_buffer(struct dri_drawable *drawable,
408                       struct dri_context *ctx,
409                       struct pipe_resource *res)
410{
411   /* no-op */
412}
413
414static __DRIimage *
415dri2_lookup_egl_image(struct dri_screen *screen, void *handle)
416{
417   __DRIimageLookupExtension *loader = screen->sPriv->dri2.image;
418   __DRIimage *img;
419
420   if (!loader->lookupEGLImage)
421      return NULL;
422
423   img = loader->lookupEGLImage(screen->sPriv,
424				handle, screen->sPriv->loaderPrivate);
425
426   return img;
427}
428
429static __DRIimage *
430dri2_create_image_from_name(__DRIscreen *_screen,
431                            int width, int height, int format,
432                            int name, int pitch, void *loaderPrivate)
433{
434   struct dri_screen *screen = dri_screen(_screen);
435   __DRIimage *img;
436   struct pipe_resource templ;
437   struct winsys_handle whandle;
438   unsigned tex_usage;
439   enum pipe_format pf;
440
441   tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
442
443   switch (format) {
444   case __DRI_IMAGE_FORMAT_RGB565:
445      pf = PIPE_FORMAT_B5G6R5_UNORM;
446      break;
447   case __DRI_IMAGE_FORMAT_XRGB8888:
448      pf = PIPE_FORMAT_B8G8R8X8_UNORM;
449      break;
450   case __DRI_IMAGE_FORMAT_ARGB8888:
451      pf = PIPE_FORMAT_B8G8R8A8_UNORM;
452      break;
453   case __DRI_IMAGE_FORMAT_ABGR8888:
454      pf = PIPE_FORMAT_R8G8B8A8_UNORM;
455      break;
456   default:
457      pf = PIPE_FORMAT_NONE;
458      break;
459   }
460   if (pf == PIPE_FORMAT_NONE)
461      return NULL;
462
463   img = CALLOC_STRUCT(__DRIimageRec);
464   if (!img)
465      return NULL;
466
467   memset(&templ, 0, sizeof(templ));
468   templ.bind = tex_usage;
469   templ.format = pf;
470   templ.target = screen->target;
471   templ.last_level = 0;
472   templ.width0 = width;
473   templ.height0 = height;
474   templ.depth0 = 1;
475   templ.array_size = 1;
476
477   memset(&whandle, 0, sizeof(whandle));
478   whandle.handle = name;
479   whandle.stride = pitch * util_format_get_blocksize(pf);
480
481   img->texture = screen->base.screen->resource_from_handle(screen->base.screen,
482         &templ, &whandle);
483   if (!img->texture) {
484      FREE(img);
485      return NULL;
486   }
487
488   img->level = 0;
489   img->layer = 0;
490   img->loader_private = loaderPrivate;
491
492   return img;
493}
494
495static __DRIimage *
496dri2_create_image_from_renderbuffer(__DRIcontext *context,
497				    int renderbuffer, void *loaderPrivate)
498{
499   struct dri_context *ctx = dri_context(context);
500
501   if (!ctx->st->get_resource_for_egl_image)
502      return NULL;
503
504   /* TODO */
505   return NULL;
506}
507
508static __DRIimage *
509dri2_create_image(__DRIscreen *_screen,
510                   int width, int height, int format,
511                   unsigned int use, void *loaderPrivate)
512{
513   struct dri_screen *screen = dri_screen(_screen);
514   __DRIimage *img;
515   struct pipe_resource templ;
516   unsigned tex_usage;
517   enum pipe_format pf;
518
519   tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
520   if (use & __DRI_IMAGE_USE_SCANOUT)
521      tex_usage |= PIPE_BIND_SCANOUT;
522   if (use & __DRI_IMAGE_USE_SHARE)
523      tex_usage |= PIPE_BIND_SHARED;
524   if (use & __DRI_IMAGE_USE_CURSOR) {
525      if (width != 64 || height != 64)
526         return NULL;
527      tex_usage |= PIPE_BIND_CURSOR;
528   }
529
530   switch (format) {
531   case __DRI_IMAGE_FORMAT_RGB565:
532      pf = PIPE_FORMAT_B5G6R5_UNORM;
533      break;
534   case __DRI_IMAGE_FORMAT_XRGB8888:
535      pf = PIPE_FORMAT_B8G8R8X8_UNORM;
536      break;
537   case __DRI_IMAGE_FORMAT_ARGB8888:
538      pf = PIPE_FORMAT_B8G8R8A8_UNORM;
539      break;
540   case __DRI_IMAGE_FORMAT_ABGR8888:
541      pf = PIPE_FORMAT_R8G8B8A8_UNORM;
542      break;
543   default:
544      pf = PIPE_FORMAT_NONE;
545      break;
546   }
547   if (pf == PIPE_FORMAT_NONE)
548      return NULL;
549
550   img = CALLOC_STRUCT(__DRIimageRec);
551   if (!img)
552      return NULL;
553
554   memset(&templ, 0, sizeof(templ));
555   templ.bind = tex_usage;
556   templ.format = pf;
557   templ.target = PIPE_TEXTURE_2D;
558   templ.last_level = 0;
559   templ.width0 = width;
560   templ.height0 = height;
561   templ.depth0 = 1;
562   templ.array_size = 1;
563
564   img->texture = screen->base.screen->resource_create(screen->base.screen, &templ);
565   if (!img->texture) {
566      FREE(img);
567      return NULL;
568   }
569
570   img->level = 0;
571   img->layer = 0;
572
573   img->loader_private = loaderPrivate;
574   return img;
575}
576
577static GLboolean
578dri2_query_image(__DRIimage *image, int attrib, int *value)
579{
580   struct winsys_handle whandle;
581   memset(&whandle, 0, sizeof(whandle));
582
583   switch (attrib) {
584   case __DRI_IMAGE_ATTRIB_STRIDE:
585      image->texture->screen->resource_get_handle(image->texture->screen,
586            image->texture, &whandle);
587      *value = whandle.stride;
588      return GL_TRUE;
589   case __DRI_IMAGE_ATTRIB_HANDLE:
590      whandle.type = DRM_API_HANDLE_TYPE_KMS;
591      image->texture->screen->resource_get_handle(image->texture->screen,
592         image->texture, &whandle);
593      *value = whandle.handle;
594      return GL_TRUE;
595   case __DRI_IMAGE_ATTRIB_NAME:
596      whandle.type = DRM_API_HANDLE_TYPE_SHARED;
597      image->texture->screen->resource_get_handle(image->texture->screen,
598         image->texture, &whandle);
599      *value = whandle.handle;
600      return GL_TRUE;
601   default:
602      return GL_FALSE;
603   }
604}
605
606static __DRIimage *
607dri2_dup_image(__DRIimage *image, void *loaderPrivate)
608{
609   __DRIimage *img;
610
611   img = CALLOC_STRUCT(__DRIimageRec);
612   if (!img)
613      return NULL;
614
615   img->texture = NULL;
616   pipe_resource_reference(&img->texture, image->texture);
617   img->level = image->level;
618   img->layer = image->layer;
619   img->loader_private = loaderPrivate;
620
621   return img;
622}
623
624static void
625dri2_destroy_image(__DRIimage *img)
626{
627   pipe_resource_reference(&img->texture, NULL);
628   FREE(img);
629}
630
631static struct __DRIimageExtensionRec dri2ImageExtension = {
632    { __DRI_IMAGE, 1 },
633    dri2_create_image_from_name,
634    dri2_create_image_from_renderbuffer,
635    dri2_destroy_image,
636    dri2_create_image,
637    dri2_query_image,
638    dri2_dup_image,
639};
640
641/*
642 * Backend function init_screen.
643 */
644
645static const __DRIextension *dri_screen_extensions[] = {
646   &driTexBufferExtension.base,
647   &dri2FlushExtension.base,
648   &dri2ImageExtension.base,
649   &dri2ConfigQueryExtension.base,
650   NULL
651};
652
653static const __DRIextension *dri_screen_extensions_throttle[] = {
654   &driTexBufferExtension.base,
655   &dri2FlushExtension.base,
656   &dri2ImageExtension.base,
657   &dri2ConfigQueryExtension.base,
658   &dri2ThrottleExtension.base,
659   NULL
660};
661
662/**
663 * This is the driver specific part of the createNewScreen entry point.
664 *
665 * Returns the struct gl_config supported by this driver.
666 */
667static const __DRIconfig **
668dri2_init_screen(__DRIscreen * sPriv)
669{
670   const __DRIconfig **configs;
671   struct dri_screen *screen;
672   struct pipe_screen *pscreen;
673   const struct drm_conf_ret *throttle_ret = NULL;
674
675   screen = CALLOC_STRUCT(dri_screen);
676   if (!screen)
677      return NULL;
678
679   screen->sPriv = sPriv;
680   screen->fd = sPriv->fd;
681
682   sPriv->driverPrivate = (void *)screen;
683
684   pscreen = driver_descriptor.create_screen(screen->fd);
685   if (driver_descriptor.configuration)
686      throttle_ret = driver_descriptor.configuration(DRM_CONF_THROTTLE);
687
688   if (throttle_ret && throttle_ret->val.val_int != -1) {
689      sPriv->extensions = dri_screen_extensions_throttle;
690      screen->default_throttle_frames = throttle_ret->val.val_int;
691   } else
692      sPriv->extensions = dri_screen_extensions;
693
694   /* dri_init_screen_helper checks pscreen for us */
695
696   configs = dri_init_screen_helper(screen, pscreen, 32);
697   if (!configs)
698      goto fail;
699
700   sPriv->api_mask = 0;
701   if (screen->st_api->profile_mask & ST_PROFILE_DEFAULT_MASK)
702      sPriv->api_mask |= 1 << __DRI_API_OPENGL;
703   if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES1_MASK)
704      sPriv->api_mask |= 1 << __DRI_API_GLES;
705   if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES2_MASK)
706      sPriv->api_mask |= 1 << __DRI_API_GLES2;
707
708   screen->auto_fake_front = dri_with_format(sPriv);
709   screen->broken_invalidate = !sPriv->dri2.useInvalidate;
710   screen->lookup_egl_image = dri2_lookup_egl_image;
711
712   return configs;
713fail:
714   dri_destroy_screen_helper(screen);
715   FREE(screen);
716   return NULL;
717}
718
719static boolean
720dri2_create_buffer(__DRIscreen * sPriv,
721                   __DRIdrawable * dPriv,
722                   const struct gl_config * visual, boolean isPixmap)
723{
724   struct dri_drawable *drawable = NULL;
725
726   if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
727      return FALSE;
728
729   drawable = dPriv->driverPrivate;
730
731   drawable->allocate_textures = dri2_allocate_textures;
732   drawable->flush_frontbuffer = dri2_flush_frontbuffer;
733   drawable->update_tex_buffer = dri2_update_tex_buffer;
734
735   return TRUE;
736}
737
738/**
739 * DRI driver virtual function table.
740 *
741 * DRI versions differ in their implementation of init_screen and swap_buffers.
742 */
743const struct __DriverAPIRec driDriverAPI = {
744   .InitScreen = dri2_init_screen,
745   .DestroyScreen = dri_destroy_screen,
746   .CreateContext = dri_create_context,
747   .DestroyContext = dri_destroy_context,
748   .CreateBuffer = dri2_create_buffer,
749   .DestroyBuffer = dri_destroy_buffer,
750   .MakeCurrent = dri_make_current,
751   .UnbindContext = dri_unbind_context,
752
753   .AllocateBuffer = dri2_allocate_buffer,
754   .ReleaseBuffer  = dri2_release_buffer,
755};
756
757/* This is the table of extensions that the loader will dlsym() for. */
758PUBLIC const __DRIextension *__driDriverExtensions[] = {
759    &driCoreExtension.base,
760    &driDRI2Extension.base,
761    NULL
762};
763
764/* vim: set sw=3 ts=8 sts=3 expandtab: */
765