src/gallium/state_trackers/dri/drm/dri2.c

   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  */
  46 static void
  47 dri2_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
  62 static void
  63 dri2_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
  73 static 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  */
  82 static __DRIbuffer *
  83 dri2_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, bpp;
 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       bpp = util_format_get_blocksizebits(format);
 138
 139       if (att >= 0) {
 140          attachments[num_attachments++] = att;
 141          if (with_format) {
 142             attachments[num_attachments++] = bpp;
 143          }
 144       }
 145    }
 146
 147    if (with_format) {
 148       num_attachments /= 2;
 149       buffers = loader->getBuffersWithFormat(dri_drawable,
 150             &dri_drawable->w, &dri_drawable->h,
 151             attachments, num_attachments,
 152             &num_buffers, dri_drawable->loaderPrivate);
 153    }
 154    else {
 155       buffers = loader->getBuffers(dri_drawable,
 156             &dri_drawable->w, &dri_drawable->h,
 157             attachments, num_attachments,
 158             &num_buffers, dri_drawable->loaderPrivate);
 159    }
 160
 161    if (buffers)
 162       *count = num_buffers;
 163
 164    return buffers;
 165 }
 166
 167 /**
 168  * Process __DRIbuffer and convert them into pipe_resources.
 169  */
 170 static void
 171 dri2_drawable_process_buffers(struct dri_drawable *drawable,
 172                               __DRIbuffer *buffers, unsigned count)
 173 {
 174    struct dri_screen *screen = dri_screen(drawable->sPriv);
 175    __DRIdrawable *dri_drawable = drawable->dPriv;
 176    struct pipe_resource templ;
 177    struct winsys_handle whandle;
 178    boolean have_depth = FALSE;
 179    unsigned i, bind;
 180
 181    if (drawable->old_num == count &&
 182        drawable->old_w == dri_drawable->w &&
 183        drawable->old_h == dri_drawable->h &&
 184        memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * count) == 0)
 185       return;
 186
 187    for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
 188       pipe_resource_reference(&drawable->textures[i], NULL);
 189
 190    memset(&templ, 0, sizeof(templ));
 191    templ.target = screen->target;
 192    templ.last_level = 0;
 193    templ.width0 = dri_drawable->w;
 194    templ.height0 = dri_drawable->h;
 195    templ.depth0 = 1;
 196    templ.array_size = 1;
 197
 198    memset(&whandle, 0, sizeof(whandle));
 199
 200    for (i = 0; i < count; i++) {
 201       __DRIbuffer *buf = &buffers[i];
 202       enum st_attachment_type statt;
 203       enum pipe_format format;
 204
 205       switch (buf->attachment) {
 206       case __DRI_BUFFER_FRONT_LEFT:
 207          if (!screen->auto_fake_front) {
 208             statt = ST_ATTACHMENT_INVALID;
 209             break;
 210          }
 211          /* fallthrough */
 212       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 213          statt = ST_ATTACHMENT_FRONT_LEFT;
 214          break;
 215       case __DRI_BUFFER_BACK_LEFT:
 216          statt = ST_ATTACHMENT_BACK_LEFT;
 217          break;
 218       case __DRI_BUFFER_DEPTH:
 219       case __DRI_BUFFER_DEPTH_STENCIL:
 220       case __DRI_BUFFER_STENCIL:
 221          /* use only the first depth/stencil buffer */
 222          if (!have_depth) {
 223             have_depth = TRUE;
 224             statt = ST_ATTACHMENT_DEPTH_STENCIL;
 225          }
 226          else {
 227             statt = ST_ATTACHMENT_INVALID;
 228          }
 229          break;
 230       default:
 231          statt = ST_ATTACHMENT_INVALID;
 232          break;
 233       }
 234
 235       dri_drawable_get_format(drawable, statt, &format, &bind);
 236       if (statt == ST_ATTACHMENT_INVALID || format == PIPE_FORMAT_NONE)
 237          continue;
 238
 239       templ.format = format;
 240       templ.bind = bind;
 241       whandle.handle = buf->name;
 242       whandle.stride = buf->pitch;
 243
 244       drawable->textures[statt] =
 245          screen->base.screen->resource_from_handle(screen->base.screen,
 246                &templ, &whandle);
 247    }
 248
 249    drawable->old_num = count;
 250    drawable->old_w = dri_drawable->w;
 251    drawable->old_h = dri_drawable->h;
 252    memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count);
 253 }
 254
 255 static __DRIbuffer *
 256 dri2_allocate_buffer(__DRIscreen *sPriv,
 257                      unsigned attachment, unsigned format,
 258                      int width, int height)
 259 {
 260    struct dri_screen *screen = dri_screen(sPriv);
 261    struct dri2_buffer *buffer;
 262    struct pipe_resource templ;
 263    enum pipe_format pf;
 264    unsigned bind = 0;
 265    struct winsys_handle whandle;
 266
 267    switch (attachment) {
 268       case __DRI_BUFFER_FRONT_LEFT:
 269       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 270          bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 271          break;
 272       case __DRI_BUFFER_BACK_LEFT:
 273          bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 274          break;
 275       case __DRI_BUFFER_DEPTH:
 276       case __DRI_BUFFER_DEPTH_STENCIL:
 277       case __DRI_BUFFER_STENCIL:
 278             bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
 279          break;
 280    }
 281
 282    switch (format) {
 283       case 32:
 284          pf = PIPE_FORMAT_B8G8R8X8_UNORM;
 285          break;
 286       case 16:
 287          pf = PIPE_FORMAT_Z16_UNORM;
 288          break;
 289       default:
 290          return NULL;
 291    }
 292
 293    buffer = CALLOC_STRUCT(dri2_buffer);
 294    if (!buffer)
 295       return NULL;
 296
 297    memset(&templ, 0, sizeof(templ));
 298    templ.bind = bind;
 299    templ.format = pf;
 300    templ.target = PIPE_TEXTURE_2D;
 301    templ.last_level = 0;
 302    templ.width0 = width;
 303    templ.height0 = height;
 304    templ.depth0 = 1;
 305    templ.array_size = 1;
 306
 307    buffer->resource =
 308       screen->base.screen->resource_create(screen->base.screen, &templ);
 309    if (!buffer->resource)
 310       return NULL;
 311
 312    memset(&whandle, 0, sizeof(whandle));
 313    whandle.type = DRM_API_HANDLE_TYPE_SHARED;
 314    screen->base.screen->resource_get_handle(screen->base.screen,
 315          buffer->resource, &whandle);
 316
 317    buffer->base.attachment = attachment;
 318    buffer->base.name = whandle.handle;
 319    buffer->base.cpp = util_format_get_blocksize(pf);
 320    buffer->base.pitch = whandle.stride;
 321
 322    return &buffer->base;
 323 }
 324
 325 static void
 326 dri2_release_buffer(__DRIscreen *sPriv, __DRIbuffer *bPriv)
 327 {
 328    struct dri2_buffer *buffer = dri2_buffer(bPriv);
 329
 330    pipe_resource_reference(&buffer->resource, NULL);
 331    FREE(buffer);
 332 }
 333
 334 /*
 335  * Backend functions for st_framebuffer interface.
 336  */
 337
 338 static void
 339 dri2_allocate_textures(struct dri_drawable *drawable,
 340                        const enum st_attachment_type *statts,
 341                        unsigned count)
 342 {
 343    __DRIbuffer *buffers;
 344    unsigned num_buffers = count;
 345
 346    buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers);
 347    if (buffers)
 348       dri2_drawable_process_buffers(drawable, buffers, num_buffers);
 349 }
 350
 351 static void
 352 dri2_flush_frontbuffer(struct dri_drawable *drawable,
 353                        enum st_attachment_type statt)
 354 {
 355    __DRIdrawable *dri_drawable = drawable->dPriv;
 356    struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader;
 357
 358    if (loader->flushFrontBuffer == NULL)
 359       return;
 360
 361    if (statt == ST_ATTACHMENT_FRONT_LEFT) {
 362       loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate);
 363    }
 364 }
 365
 366 static void
 367 dri2_update_tex_buffer(struct dri_drawable *drawable,
 368                        struct dri_context *ctx,
 369                        struct pipe_resource *res)
 370 {
 371    /* no-op */
 372 }
 373
 374 static __DRIimage *
 375 dri2_lookup_egl_image(struct dri_screen *screen, void *handle)
 376 {
 377    __DRIimageLookupExtension *loader = screen->sPriv->dri2.image;
 378    __DRIimage *img;
 379
 380    if (!loader->lookupEGLImage)
 381       return NULL;
 382
 383    img = loader->lookupEGLImage(screen->sPriv,
 384                                 handle, screen->sPriv->loaderPrivate);
 385
 386    return img;
 387 }
 388
 389 static __DRIimage *
 390 dri2_create_image_from_name(__DRIscreen *_screen,
 391                             int width, int height, int format,
 392                             int name, int pitch, void *loaderPrivate)
 393 {
 394    struct dri_screen *screen = dri_screen(_screen);
 395    __DRIimage *img;
 396    struct pipe_resource templ;
 397    struct winsys_handle whandle;
 398    unsigned tex_usage;
 399    enum pipe_format pf;
 400
 401    tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 402
 403    switch (format) {
 404    case __DRI_IMAGE_FORMAT_RGB565:
 405       pf = PIPE_FORMAT_B5G6R5_UNORM;
 406       break;
 407    case __DRI_IMAGE_FORMAT_XRGB8888:
 408       pf = PIPE_FORMAT_B8G8R8X8_UNORM;
 409       break;
 410    case __DRI_IMAGE_FORMAT_ARGB8888:
 411       pf = PIPE_FORMAT_B8G8R8A8_UNORM;
 412       break;
 413    case __DRI_IMAGE_FORMAT_ABGR8888:
 414       pf = PIPE_FORMAT_R8G8B8A8_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
 455 static __DRIimage *
 456 dri2_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
 468 static __DRIimage *
 469 dri2_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    case __DRI_IMAGE_FORMAT_ABGR8888:
 501       pf = PIPE_FORMAT_R8G8B8A8_UNORM;
 502       break;
 503    default:
 504       pf = PIPE_FORMAT_NONE;
 505       break;
 506    }
 507    if (pf == PIPE_FORMAT_NONE)
 508       return NULL;
 509
 510    img = CALLOC_STRUCT(__DRIimageRec);
 511    if (!img)
 512       return NULL;
 513
 514    memset(&templ, 0, sizeof(templ));
 515    templ.bind = tex_usage;
 516    templ.format = pf;
 517    templ.target = PIPE_TEXTURE_2D;
 518    templ.last_level = 0;
 519    templ.width0 = width;
 520    templ.height0 = height;
 521    templ.depth0 = 1;
 522    templ.array_size = 1;
 523
 524    img->texture = screen->base.screen->resource_create(screen->base.screen, &templ);
 525    if (!img->texture) {
 526       FREE(img);
 527       return NULL;
 528    }
 529
 530    img->level = 0;
 531    img->layer = 0;
 532
 533    img->loader_private = loaderPrivate;
 534    return img;
 535 }
 536
 537 static GLboolean
 538 dri2_query_image(__DRIimage *image, int attrib, int *value)
 539 {
 540    struct winsys_handle whandle;
 541    memset(&whandle, 0, sizeof(whandle));
 542
 543    switch (attrib) {
 544    case __DRI_IMAGE_ATTRIB_STRIDE:
 545       image->texture->screen->resource_get_handle(image->texture->screen,
 546             image->texture, &whandle);
 547       *value = whandle.stride;
 548       return GL_TRUE;
 549    case __DRI_IMAGE_ATTRIB_HANDLE:
 550       whandle.type = DRM_API_HANDLE_TYPE_KMS;
 551       image->texture->screen->resource_get_handle(image->texture->screen,
 552          image->texture, &whandle);
 553       *value = whandle.handle;
 554       return GL_TRUE;
 555    case __DRI_IMAGE_ATTRIB_NAME:
 556       whandle.type = DRM_API_HANDLE_TYPE_SHARED;
 557       image->texture->screen->resource_get_handle(image->texture->screen,
 558          image->texture, &whandle);
 559       *value = whandle.handle;
 560       return GL_TRUE;
 561    default:
 562       return GL_FALSE;
 563    }
 564 }
 565
 566 static __DRIimage *
 567 dri2_dup_image(__DRIimage *image, void *loaderPrivate)
 568 {
 569    __DRIimage *img;
 570
 571    img = CALLOC_STRUCT(__DRIimageRec);
 572    if (!img)
 573       return NULL;
 574
 575    img->texture = NULL;
 576    pipe_resource_reference(&img->texture, image->texture);
 577    img->level = image->level;
 578    img->layer = image->layer;
 579    img->loader_private = loaderPrivate;
 580
 581    return img;
 582 }
 583
 584 static void
 585 dri2_destroy_image(__DRIimage *img)
 586 {
 587    pipe_resource_reference(&img->texture, NULL);
 588    FREE(img);
 589 }
 590
 591 static struct __DRIimageExtensionRec dri2ImageExtension = {
 592     { __DRI_IMAGE, __DRI_IMAGE_VERSION },
 593     dri2_create_image_from_name,
 594     dri2_create_image_from_renderbuffer,
 595     dri2_destroy_image,
 596     dri2_create_image,
 597     dri2_query_image,
 598     dri2_dup_image,
 599 };
 600
 601 /*
 602  * Backend function init_screen.
 603  */
 604
 605 static const __DRIextension *dri_screen_extensions[] = {
 606    &driTexBufferExtension.base,
 607    &dri2FlushExtension.base,
 608    &dri2ImageExtension.base,
 609    &dri2ConfigQueryExtension.base,
 610    NULL
 611 };
 612
 613 static const __DRIextension *dri_screen_extensions_throttle[] = {
 614    &driTexBufferExtension.base,
 615    &dri2FlushExtension.base,
 616    &dri2ImageExtension.base,
 617    &dri2ConfigQueryExtension.base,
 618    &dri2ThrottleExtension.base,
 619    NULL
 620 };
 621
 622 /**
 623  * This is the driver specific part of the createNewScreen entry point.
 624  *
 625  * Returns the struct gl_config supported by this driver.
 626  */
 627 static const __DRIconfig **
 628 dri2_init_screen(__DRIscreen * sPriv)
 629 {
 630    const __DRIconfig **configs;
 631    struct dri_screen *screen;
 632    struct pipe_screen *pscreen;
 633    const struct drm_conf_ret *throttle_ret = NULL;
 634
 635    screen = CALLOC_STRUCT(dri_screen);
 636    if (!screen)
 637       return NULL;
 638
 639    screen->sPriv = sPriv;
 640    screen->fd = sPriv->fd;
 641
 642    sPriv->driverPrivate = (void *)screen;
 643
 644    pscreen = driver_descriptor.create_screen(screen->fd);
 645    if (driver_descriptor.configuration)
 646       throttle_ret = driver_descriptor.configuration(DRM_CONF_THROTTLE);
 647
 648    if (throttle_ret && throttle_ret->val.val_int != -1) {
 649       sPriv->extensions = dri_screen_extensions_throttle;
 650       screen->default_throttle_frames = throttle_ret->val.val_int;
 651    } else
 652       sPriv->extensions = dri_screen_extensions;
 653
 654    /* dri_init_screen_helper checks pscreen for us */
 655
 656    configs = dri_init_screen_helper(screen, pscreen, 32);
 657    if (!configs)
 658       goto fail;
 659
 660    sPriv->api_mask = 0;
 661    if (screen->st_api->profile_mask & ST_PROFILE_DEFAULT_MASK)
 662       sPriv->api_mask |= 1 << __DRI_API_OPENGL;
 663    if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES1_MASK)
 664       sPriv->api_mask |= 1 << __DRI_API_GLES;
 665    if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES2_MASK)
 666       sPriv->api_mask |= 1 << __DRI_API_GLES2;
 667
 668    screen->auto_fake_front = dri_with_format(sPriv);
 669    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
 670    screen->lookup_egl_image = dri2_lookup_egl_image;
 671
 672    return configs;
 673 fail:
 674    dri_destroy_screen_helper(screen);
 675    FREE(screen);
 676    return NULL;
 677 }
 678
 679 static boolean
 680 dri2_create_buffer(__DRIscreen * sPriv,
 681                    __DRIdrawable * dPriv,
 682                    const struct gl_config * visual, boolean isPixmap)
 683 {
 684    struct dri_drawable *drawable = NULL;
 685
 686    if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
 687       return FALSE;
 688
 689    drawable = dPriv->driverPrivate;
 690
 691    drawable->allocate_textures = dri2_allocate_textures;
 692    drawable->flush_frontbuffer = dri2_flush_frontbuffer;
 693    drawable->update_tex_buffer = dri2_update_tex_buffer;
 694
 695    return TRUE;
 696 }
 697
 698 /**
 699  * DRI driver virtual function table.
 700  *
 701  * DRI versions differ in their implementation of init_screen and swap_buffers.
 702  */
 703 const struct __DriverAPIRec driDriverAPI = {
 704    .InitScreen = dri2_init_screen,
 705    .DestroyScreen = dri_destroy_screen,
 706    .CreateContext = dri_create_context,
 707    .DestroyContext = dri_destroy_context,
 708    .CreateBuffer = dri2_create_buffer,
 709    .DestroyBuffer = dri_destroy_buffer,
 710    .MakeCurrent = dri_make_current,
 711    .UnbindContext = dri_unbind_context,
 712
 713    .AllocateBuffer = dri2_allocate_buffer,
 714    .ReleaseBuffer  = dri2_release_buffer,
 715 };
 716
 717 /* This is the table of extensions that the loader will dlsym() for. */
 718 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 719     &driCoreExtension.base,
 720     &driDRI2Extension.base,
 721     NULL
 722 };
 723
 724 /* vim: set sw=3 ts=8 sts=3 expandtab: */