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       FREE(buffer);
 311       return NULL;
 312    }
 313
 314    memset(&whandle, 0, sizeof(whandle));
 315    whandle.type = DRM_API_HANDLE_TYPE_SHARED;
 316    screen->base.screen->resource_get_handle(screen->base.screen,
 317          buffer->resource, &whandle);
 318
 319    buffer->base.attachment = attachment;
 320    buffer->base.name = whandle.handle;
 321    buffer->base.cpp = util_format_get_blocksize(pf);
 322    buffer->base.pitch = whandle.stride;
 323
 324    return &buffer->base;
 325 }
 326
 327 static void
 328 dri2_release_buffer(__DRIscreen *sPriv, __DRIbuffer *bPriv)
 329 {
 330    struct dri2_buffer *buffer = dri2_buffer(bPriv);
 331
 332    pipe_resource_reference(&buffer->resource, NULL);
 333    FREE(buffer);
 334 }
 335
 336 /*
 337  * Backend functions for st_framebuffer interface.
 338  */
 339
 340 static void
 341 dri2_allocate_textures(struct dri_drawable *drawable,
 342                        const enum st_attachment_type *statts,
 343                        unsigned count)
 344 {
 345    __DRIbuffer *buffers;
 346    unsigned num_buffers = count;
 347
 348    buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers);
 349    if (buffers)
 350       dri2_drawable_process_buffers(drawable, buffers, num_buffers);
 351 }
 352
 353 static void
 354 dri2_flush_frontbuffer(struct dri_drawable *drawable,
 355                        enum st_attachment_type statt)
 356 {
 357    __DRIdrawable *dri_drawable = drawable->dPriv;
 358    struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader;
 359
 360    if (loader->flushFrontBuffer == NULL)
 361       return;
 362
 363    if (statt == ST_ATTACHMENT_FRONT_LEFT) {
 364       loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate);
 365    }
 366 }
 367
 368 static void
 369 dri2_update_tex_buffer(struct dri_drawable *drawable,
 370                        struct dri_context *ctx,
 371                        struct pipe_resource *res)
 372 {
 373    /* no-op */
 374 }
 375
 376 static __DRIimage *
 377 dri2_lookup_egl_image(struct dri_screen *screen, void *handle)
 378 {
 379    __DRIimageLookupExtension *loader = screen->sPriv->dri2.image;
 380    __DRIimage *img;
 381
 382    if (!loader->lookupEGLImage)
 383       return NULL;
 384
 385    img = loader->lookupEGLImage(screen->sPriv,
 386                                 handle, screen->sPriv->loaderPrivate);
 387
 388    return img;
 389 }
 390
 391 static __DRIimage *
 392 dri2_create_image_from_name(__DRIscreen *_screen,
 393                             int width, int height, int format,
 394                             int name, int pitch, void *loaderPrivate)
 395 {
 396    struct dri_screen *screen = dri_screen(_screen);
 397    __DRIimage *img;
 398    struct pipe_resource templ;
 399    struct winsys_handle whandle;
 400    unsigned tex_usage;
 401    enum pipe_format pf;
 402
 403    tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 404
 405    switch (format) {
 406    case __DRI_IMAGE_FORMAT_RGB565:
 407       pf = PIPE_FORMAT_B5G6R5_UNORM;
 408       break;
 409    case __DRI_IMAGE_FORMAT_XRGB8888:
 410       pf = PIPE_FORMAT_B8G8R8X8_UNORM;
 411       break;
 412    case __DRI_IMAGE_FORMAT_ARGB8888:
 413       pf = PIPE_FORMAT_B8G8R8A8_UNORM;
 414       break;
 415    case __DRI_IMAGE_FORMAT_ABGR8888:
 416       pf = PIPE_FORMAT_R8G8B8A8_UNORM;
 417       break;
 418    default:
 419       pf = PIPE_FORMAT_NONE;
 420       break;
 421    }
 422    if (pf == PIPE_FORMAT_NONE)
 423       return NULL;
 424
 425    img = CALLOC_STRUCT(__DRIimageRec);
 426    if (!img)
 427       return NULL;
 428
 429    memset(&templ, 0, sizeof(templ));
 430    templ.bind = tex_usage;
 431    templ.format = pf;
 432    templ.target = screen->target;
 433    templ.last_level = 0;
 434    templ.width0 = width;
 435    templ.height0 = height;
 436    templ.depth0 = 1;
 437    templ.array_size = 1;
 438
 439    memset(&whandle, 0, sizeof(whandle));
 440    whandle.handle = name;
 441    whandle.stride = pitch * util_format_get_blocksize(pf);
 442
 443    img->texture = screen->base.screen->resource_from_handle(screen->base.screen,
 444          &templ, &whandle);
 445    if (!img->texture) {
 446       FREE(img);
 447       return NULL;
 448    }
 449
 450    img->level = 0;
 451    img->layer = 0;
 452    img->loader_private = loaderPrivate;
 453
 454    return img;
 455 }
 456
 457 static __DRIimage *
 458 dri2_create_image_from_renderbuffer(__DRIcontext *context,
 459                                     int renderbuffer, void *loaderPrivate)
 460 {
 461    struct dri_context *ctx = dri_context(context);
 462
 463    if (!ctx->st->get_resource_for_egl_image)
 464       return NULL;
 465
 466    /* TODO */
 467    return NULL;
 468 }
 469
 470 static __DRIimage *
 471 dri2_create_image(__DRIscreen *_screen,
 472                    int width, int height, int format,
 473                    unsigned int use, void *loaderPrivate)
 474 {
 475    struct dri_screen *screen = dri_screen(_screen);
 476    __DRIimage *img;
 477    struct pipe_resource templ;
 478    unsigned tex_usage;
 479    enum pipe_format pf;
 480
 481    tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 482    if (use & __DRI_IMAGE_USE_SCANOUT)
 483       tex_usage |= PIPE_BIND_SCANOUT;
 484    if (use & __DRI_IMAGE_USE_SHARE)
 485       tex_usage |= PIPE_BIND_SHARED;
 486    if (use & __DRI_IMAGE_USE_CURSOR) {
 487       if (width != 64 || height != 64)
 488          return NULL;
 489       tex_usage |= PIPE_BIND_CURSOR;
 490    }
 491
 492    switch (format) {
 493    case __DRI_IMAGE_FORMAT_RGB565:
 494       pf = PIPE_FORMAT_B5G6R5_UNORM;
 495       break;
 496    case __DRI_IMAGE_FORMAT_XRGB8888:
 497       pf = PIPE_FORMAT_B8G8R8X8_UNORM;
 498       break;
 499    case __DRI_IMAGE_FORMAT_ARGB8888:
 500       pf = PIPE_FORMAT_B8G8R8A8_UNORM;
 501       break;
 502    case __DRI_IMAGE_FORMAT_ABGR8888:
 503       pf = PIPE_FORMAT_R8G8B8A8_UNORM;
 504       break;
 505    default:
 506       pf = PIPE_FORMAT_NONE;
 507       break;
 508    }
 509    if (pf == PIPE_FORMAT_NONE)
 510       return NULL;
 511
 512    img = CALLOC_STRUCT(__DRIimageRec);
 513    if (!img)
 514       return NULL;
 515
 516    memset(&templ, 0, sizeof(templ));
 517    templ.bind = tex_usage;
 518    templ.format = pf;
 519    templ.target = PIPE_TEXTURE_2D;
 520    templ.last_level = 0;
 521    templ.width0 = width;
 522    templ.height0 = height;
 523    templ.depth0 = 1;
 524    templ.array_size = 1;
 525
 526    img->texture = screen->base.screen->resource_create(screen->base.screen, &templ);
 527    if (!img->texture) {
 528       FREE(img);
 529       return NULL;
 530    }
 531
 532    img->level = 0;
 533    img->layer = 0;
 534
 535    img->loader_private = loaderPrivate;
 536    return img;
 537 }
 538
 539 static GLboolean
 540 dri2_query_image(__DRIimage *image, int attrib, int *value)
 541 {
 542    struct winsys_handle whandle;
 543    memset(&whandle, 0, sizeof(whandle));
 544
 545    switch (attrib) {
 546    case __DRI_IMAGE_ATTRIB_STRIDE:
 547       image->texture->screen->resource_get_handle(image->texture->screen,
 548             image->texture, &whandle);
 549       *value = whandle.stride;
 550       return GL_TRUE;
 551    case __DRI_IMAGE_ATTRIB_HANDLE:
 552       whandle.type = DRM_API_HANDLE_TYPE_KMS;
 553       image->texture->screen->resource_get_handle(image->texture->screen,
 554          image->texture, &whandle);
 555       *value = whandle.handle;
 556       return GL_TRUE;
 557    case __DRI_IMAGE_ATTRIB_NAME:
 558       whandle.type = DRM_API_HANDLE_TYPE_SHARED;
 559       image->texture->screen->resource_get_handle(image->texture->screen,
 560          image->texture, &whandle);
 561       *value = whandle.handle;
 562       return GL_TRUE;
 563    default:
 564       return GL_FALSE;
 565    }
 566 }
 567
 568 static __DRIimage *
 569 dri2_dup_image(__DRIimage *image, void *loaderPrivate)
 570 {
 571    __DRIimage *img;
 572
 573    img = CALLOC_STRUCT(__DRIimageRec);
 574    if (!img)
 575       return NULL;
 576
 577    img->texture = NULL;
 578    pipe_resource_reference(&img->texture, image->texture);
 579    img->level = image->level;
 580    img->layer = image->layer;
 581    img->loader_private = loaderPrivate;
 582
 583    return img;
 584 }
 585
 586 static void
 587 dri2_destroy_image(__DRIimage *img)
 588 {
 589    pipe_resource_reference(&img->texture, NULL);
 590    FREE(img);
 591 }
 592
 593 static struct __DRIimageExtensionRec dri2ImageExtension = {
 594     { __DRI_IMAGE, __DRI_IMAGE_VERSION },
 595     dri2_create_image_from_name,
 596     dri2_create_image_from_renderbuffer,
 597     dri2_destroy_image,
 598     dri2_create_image,
 599     dri2_query_image,
 600     dri2_dup_image,
 601 };
 602
 603 /*
 604  * Backend function init_screen.
 605  */
 606
 607 static const __DRIextension *dri_screen_extensions[] = {
 608    &driTexBufferExtension.base,
 609    &dri2FlushExtension.base,
 610    &dri2ImageExtension.base,
 611    &dri2ConfigQueryExtension.base,
 612    NULL
 613 };
 614
 615 static const __DRIextension *dri_screen_extensions_throttle[] = {
 616    &driTexBufferExtension.base,
 617    &dri2FlushExtension.base,
 618    &dri2ImageExtension.base,
 619    &dri2ConfigQueryExtension.base,
 620    &dri2ThrottleExtension.base,
 621    NULL
 622 };
 623
 624 /**
 625  * This is the driver specific part of the createNewScreen entry point.
 626  *
 627  * Returns the struct gl_config supported by this driver.
 628  */
 629 static const __DRIconfig **
 630 dri2_init_screen(__DRIscreen * sPriv)
 631 {
 632    const __DRIconfig **configs;
 633    struct dri_screen *screen;
 634    struct pipe_screen *pscreen;
 635    const struct drm_conf_ret *throttle_ret = NULL;
 636
 637    screen = CALLOC_STRUCT(dri_screen);
 638    if (!screen)
 639       return NULL;
 640
 641    screen->sPriv = sPriv;
 642    screen->fd = sPriv->fd;
 643
 644    sPriv->driverPrivate = (void *)screen;
 645
 646    pscreen = driver_descriptor.create_screen(screen->fd);
 647    if (driver_descriptor.configuration)
 648       throttle_ret = driver_descriptor.configuration(DRM_CONF_THROTTLE);
 649
 650    if (throttle_ret && throttle_ret->val.val_int != -1) {
 651       sPriv->extensions = dri_screen_extensions_throttle;
 652       screen->default_throttle_frames = throttle_ret->val.val_int;
 653    } else
 654       sPriv->extensions = dri_screen_extensions;
 655
 656    /* dri_init_screen_helper checks pscreen for us */
 657
 658    configs = dri_init_screen_helper(screen, pscreen, 32);
 659    if (!configs)
 660       goto fail;
 661
 662    sPriv->api_mask = 0;
 663    if (screen->st_api->profile_mask & ST_PROFILE_DEFAULT_MASK)
 664       sPriv->api_mask |= 1 << __DRI_API_OPENGL;
 665    if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES1_MASK)
 666       sPriv->api_mask |= 1 << __DRI_API_GLES;
 667    if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES2_MASK)
 668       sPriv->api_mask |= 1 << __DRI_API_GLES2;
 669
 670    screen->auto_fake_front = dri_with_format(sPriv);
 671    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
 672    screen->lookup_egl_image = dri2_lookup_egl_image;
 673
 674    return configs;
 675 fail:
 676    dri_destroy_screen_helper(screen);
 677    FREE(screen);
 678    return NULL;
 679 }
 680
 681 static boolean
 682 dri2_create_buffer(__DRIscreen * sPriv,
 683                    __DRIdrawable * dPriv,
 684                    const struct gl_config * visual, boolean isPixmap)
 685 {
 686    struct dri_drawable *drawable = NULL;
 687
 688    if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
 689       return FALSE;
 690
 691    drawable = dPriv->driverPrivate;
 692
 693    drawable->allocate_textures = dri2_allocate_textures;
 694    drawable->flush_frontbuffer = dri2_flush_frontbuffer;
 695    drawable->update_tex_buffer = dri2_update_tex_buffer;
 696
 697    return TRUE;
 698 }
 699
 700 /**
 701  * DRI driver virtual function table.
 702  *
 703  * DRI versions differ in their implementation of init_screen and swap_buffers.
 704  */
 705 const struct __DriverAPIRec driDriverAPI = {
 706    .InitScreen = dri2_init_screen,
 707    .DestroyScreen = dri_destroy_screen,
 708    .CreateContext = dri_create_context,
 709    .DestroyContext = dri_destroy_context,
 710    .CreateBuffer = dri2_create_buffer,
 711    .DestroyBuffer = dri_destroy_buffer,
 712    .MakeCurrent = dri_make_current,
 713    .UnbindContext = dri_unbind_context,
 714
 715    .AllocateBuffer = dri2_allocate_buffer,
 716    .ReleaseBuffer  = dri2_release_buffer,
 717 };
 718
 719 /* This is the table of extensions that the loader will dlsym() for. */
 720 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 721     &driCoreExtension.base,
 722     &driDRI2Extension.base,
 723     NULL
 724 };
 725
 726 /* vim: set sw=3 ts=8 sts=3 expandtab: */