src/egl/drivers/dri2/platform_wayland.c

   1 /*
   2  * Copyright © 2011-2012 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  19  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  20  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Kristian Høgsberg <krh@bitplanet.net>
  26  *    Benjamin Franzke <benjaminfranzke@googlemail.com>
  27  */
  28
  29 #include <stdint.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <limits.h>
  33 #include <dlfcn.h>
  34 #include <errno.h>
  35 #include <unistd.h>
  36 #include <fcntl.h>
  37 #include <xf86drm.h>
  38
  39 #include "egl_dri2.h"
  40 #include "egl_dri2_fallbacks.h"
  41 #include "loader.h"
  42
  43 #include <wayland-client.h>
  44 #include "wayland-drm-client-protocol.h"
  45
  46 enum wl_drm_format_flags {
  47    HAS_ARGB8888 = 1,
  48    HAS_XRGB8888 = 2,
  49    HAS_RGB565 = 4,
  50 };
  51
  52 static EGLBoolean
  53 dri2_wl_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
  54                       EGLint interval);
  55
  56 static void
  57 sync_callback(void *data, struct wl_callback *callback, uint32_t serial)
  58 {
  59    int *done = data;
  60
  61    *done = 1;
  62    wl_callback_destroy(callback);
  63 }
  64
  65 static const struct wl_callback_listener sync_listener = {
  66    sync_callback
  67 };
  68
  69 static int
  70 roundtrip(struct dri2_egl_display *dri2_dpy)
  71 {
  72    struct wl_callback *callback;
  73    int done = 0, ret = 0;
  74
  75    callback = wl_display_sync(dri2_dpy->wl_dpy);
  76    wl_callback_add_listener(callback, &sync_listener, &done);
  77    wl_proxy_set_queue((struct wl_proxy *) callback, dri2_dpy->wl_queue);
  78    while (ret != -1 && !done)
  79       ret = wl_display_dispatch_queue(dri2_dpy->wl_dpy, dri2_dpy->wl_queue);
  80
  81    if (!done)
  82       wl_callback_destroy(callback);
  83
  84    return ret;
  85 }
  86
  87 static void
  88 wl_buffer_release(void *data, struct wl_buffer *buffer)
  89 {
  90    struct dri2_egl_surface *dri2_surf = data;
  91    int i;
  92
  93    for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); ++i)
  94       if (dri2_surf->color_buffers[i].wl_buffer == buffer)
  95          break;
  96
  97    if (i == ARRAY_SIZE(dri2_surf->color_buffers)) {
  98       wl_buffer_destroy(buffer);
  99       return;
 100    }
 101
 102    dri2_surf->color_buffers[i].locked = 0;
 103 }
 104
 105 static struct wl_buffer_listener wl_buffer_listener = {
 106    wl_buffer_release
 107 };
 108
 109 static void
 110 resize_callback(struct wl_egl_window *wl_win, void *data)
 111 {
 112    struct dri2_egl_surface *dri2_surf = data;
 113    struct dri2_egl_display *dri2_dpy =
 114       dri2_egl_display(dri2_surf->base.Resource.Display);
 115
 116    (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
 117 }
 118
 119 /**
 120  * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
 121  */
 122 static _EGLSurface *
 123 dri2_wl_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 124                        _EGLConfig *conf, void *native_window,
 125                        const EGLint *attrib_list)
 126 {
 127    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 128    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
 129    struct wl_egl_window *window = native_window;
 130    struct dri2_egl_surface *dri2_surf;
 131
 132    (void) drv;
 133
 134    dri2_surf = calloc(1, sizeof *dri2_surf);
 135    if (!dri2_surf) {
 136       _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
 137       return NULL;
 138    }
 139
 140    if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
 141       goto cleanup_surf;
 142
 143    if (conf->RedSize == 5)
 144       dri2_surf->format = WL_DRM_FORMAT_RGB565;
 145    else if (conf->AlphaSize == 0)
 146       dri2_surf->format = WL_DRM_FORMAT_XRGB8888;
 147    else
 148       dri2_surf->format = WL_DRM_FORMAT_ARGB8888;
 149
 150    switch (type) {
 151    case EGL_WINDOW_BIT:
 152       dri2_surf->wl_win = window;
 153
 154       dri2_surf->wl_win->private = dri2_surf;
 155       dri2_surf->wl_win->resize_callback = resize_callback;
 156
 157       dri2_surf->base.Width =  -1;
 158       dri2_surf->base.Height = -1;
 159       break;
 160    default:
 161       goto cleanup_surf;
 162    }
 163
 164    dri2_surf->dri_drawable =
 165       (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
 166                                             type == EGL_WINDOW_BIT ?
 167                                             dri2_conf->dri_double_config :
 168                                             dri2_conf->dri_single_config,
 169                                             dri2_surf);
 170    if (dri2_surf->dri_drawable == NULL) {
 171       _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
 172       goto cleanup_dri_drawable;
 173    }
 174
 175    return &dri2_surf->base;
 176
 177  cleanup_dri_drawable:
 178    dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
 179  cleanup_surf:
 180    free(dri2_surf);
 181
 182    return NULL;
 183 }
 184
 185 /**
 186  * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
 187  */
 188 static _EGLSurface *
 189 dri2_wl_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
 190                               _EGLConfig *conf, void *native_window,
 191                               const EGLint *attrib_list)
 192 {
 193    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 194    _EGLSurface *surf;
 195
 196    surf = dri2_wl_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
 197                                  native_window, attrib_list);
 198
 199    if (surf != NULL)
 200       dri2_wl_swap_interval(drv, disp, surf, dri2_dpy->default_swap_interval);
 201
 202    return surf;
 203 }
 204
 205 static _EGLSurface *
 206 dri2_wl_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
 207                               _EGLConfig *conf, void *native_window,
 208                               const EGLint *attrib_list)
 209 {
 210    /* From the EGL_EXT_platform_wayland spec, version 3:
 211     *
 212     *   It is not valid to call eglCreatePlatformPixmapSurfaceEXT with a <dpy>
 213     *   that belongs to Wayland. Any such call fails and generates
 214     *   EGL_BAD_PARAMETER.
 215     */
 216    _eglError(EGL_BAD_PARAMETER, "cannot create EGL pixmap surfaces on "
 217              "Wayland");
 218    return NULL;
 219 }
 220
 221 /**
 222  * Called via eglDestroySurface(), drv->API.DestroySurface().
 223  */
 224 static EGLBoolean
 225 dri2_wl_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 226 {
 227    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 228    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 229    int i;
 230
 231    (void) drv;
 232
 233    if (!_eglPutSurface(surf))
 234       return EGL_TRUE;
 235
 236    (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
 237
 238    for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
 239       if (dri2_surf->color_buffers[i].wl_buffer)
 240          wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
 241       if (dri2_surf->color_buffers[i].dri_image)
 242          dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
 243       if (dri2_surf->color_buffers[i].linear_copy)
 244          dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
 245    }
 246
 247    for (i = 0; i < __DRI_BUFFER_COUNT; i++)
 248       if (dri2_surf->dri_buffers[i] &&
 249           dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
 250          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 251                                        dri2_surf->dri_buffers[i]);
 252
 253    if (dri2_surf->throttle_callback)
 254       wl_callback_destroy(dri2_surf->throttle_callback);
 255
 256    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 257       dri2_surf->wl_win->private = NULL;
 258       dri2_surf->wl_win->resize_callback = NULL;
 259    }
 260
 261    free(surf);
 262
 263    return EGL_TRUE;
 264 }
 265
 266 static void
 267 dri2_wl_release_buffers(struct dri2_egl_surface *dri2_surf)
 268 {
 269    struct dri2_egl_display *dri2_dpy =
 270       dri2_egl_display(dri2_surf->base.Resource.Display);
 271    int i;
 272
 273    for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
 274       if (dri2_surf->color_buffers[i].wl_buffer &&
 275           !dri2_surf->color_buffers[i].locked)
 276          wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
 277       if (dri2_surf->color_buffers[i].dri_image)
 278          dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
 279       if (dri2_surf->color_buffers[i].linear_copy)
 280          dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
 281
 282       dri2_surf->color_buffers[i].wl_buffer = NULL;
 283       dri2_surf->color_buffers[i].dri_image = NULL;
 284       dri2_surf->color_buffers[i].linear_copy = NULL;
 285       dri2_surf->color_buffers[i].locked = 0;
 286    }
 287
 288    for (i = 0; i < __DRI_BUFFER_COUNT; i++)
 289       if (dri2_surf->dri_buffers[i] &&
 290           dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
 291          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 292                                        dri2_surf->dri_buffers[i]);
 293 }
 294
 295 static int
 296 get_back_bo(struct dri2_egl_surface *dri2_surf)
 297 {
 298    struct dri2_egl_display *dri2_dpy =
 299       dri2_egl_display(dri2_surf->base.Resource.Display);
 300    int i;
 301    unsigned int dri_image_format;
 302
 303    /* currently supports three WL DRM formats,
 304     * WL_DRM_FORMAT_ARGB8888, WL_DRM_FORMAT_XRGB8888,
 305     * and WL_DRM_FORMAT_RGB565
 306     */
 307    switch (dri2_surf->format) {
 308    case WL_DRM_FORMAT_ARGB8888:
 309       dri_image_format = __DRI_IMAGE_FORMAT_ARGB8888;
 310       break;
 311    case WL_DRM_FORMAT_XRGB8888:
 312       dri_image_format = __DRI_IMAGE_FORMAT_XRGB8888;
 313       break;
 314    case WL_DRM_FORMAT_RGB565:
 315       dri_image_format = __DRI_IMAGE_FORMAT_RGB565;
 316       break;
 317    default:
 318       /* format is not supported */
 319       return -1;
 320    }
 321
 322    /* We always want to throttle to some event (either a frame callback or
 323     * a sync request) after the commit so that we can be sure the
 324     * compositor has had a chance to handle it and send us a release event
 325     * before we look for a free buffer */
 326    while (dri2_surf->throttle_callback != NULL)
 327       if (wl_display_dispatch_queue(dri2_dpy->wl_dpy,
 328                                     dri2_dpy->wl_queue) == -1)
 329          return -1;
 330
 331    if (dri2_surf->back == NULL) {
 332       for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
 333          /* Get an unlocked buffer, preferrably one with a dri_buffer
 334           * already allocated. */
 335          if (dri2_surf->color_buffers[i].locked)
 336             continue;
 337          if (dri2_surf->back == NULL)
 338             dri2_surf->back = &dri2_surf->color_buffers[i];
 339          else if (dri2_surf->back->dri_image == NULL)
 340             dri2_surf->back = &dri2_surf->color_buffers[i];
 341       }
 342    }
 343
 344    if (dri2_surf->back == NULL)
 345       return -1;
 346
 347    if (dri2_dpy->is_different_gpu &&
 348        dri2_surf->back->linear_copy == NULL) {
 349        dri2_surf->back->linear_copy =
 350           dri2_dpy->image->createImage(dri2_dpy->dri_screen,
 351                                       dri2_surf->base.Width,
 352                                       dri2_surf->base.Height,
 353                                       dri_image_format,
 354                                       __DRI_IMAGE_USE_SHARE |
 355                                       __DRI_IMAGE_USE_LINEAR,
 356                                       NULL);
 357       if (dri2_surf->back->linear_copy == NULL)
 358           return -1;
 359    }
 360
 361    if (dri2_surf->back->dri_image == NULL) {
 362       dri2_surf->back->dri_image =
 363          dri2_dpy->image->createImage(dri2_dpy->dri_screen,
 364                                       dri2_surf->base.Width,
 365                                       dri2_surf->base.Height,
 366                                       dri_image_format,
 367                                       dri2_dpy->is_different_gpu ?
 368                                          0 : __DRI_IMAGE_USE_SHARE,
 369                                       NULL);
 370       dri2_surf->back->age = 0;
 371    }
 372    if (dri2_surf->back->dri_image == NULL)
 373       return -1;
 374
 375    dri2_surf->back->locked = 1;
 376
 377    return 0;
 378 }
 379
 380
 381 static void
 382 back_bo_to_dri_buffer(struct dri2_egl_surface *dri2_surf, __DRIbuffer *buffer)
 383 {
 384    struct dri2_egl_display *dri2_dpy =
 385       dri2_egl_display(dri2_surf->base.Resource.Display);
 386    __DRIimage *image;
 387    int name, pitch;
 388
 389    image = dri2_surf->back->dri_image;
 390
 391    dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
 392    dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &pitch);
 393
 394    buffer->attachment = __DRI_BUFFER_BACK_LEFT;
 395    buffer->name = name;
 396    buffer->pitch = pitch;
 397    buffer->cpp = 4;
 398    buffer->flags = 0;
 399 }
 400
 401 static int
 402 get_aux_bo(struct dri2_egl_surface *dri2_surf,
 403            unsigned int attachment, unsigned int format, __DRIbuffer *buffer)
 404 {
 405    struct dri2_egl_display *dri2_dpy =
 406       dri2_egl_display(dri2_surf->base.Resource.Display);
 407    __DRIbuffer *b = dri2_surf->dri_buffers[attachment];
 408
 409    if (b == NULL) {
 410       b = dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
 411                                          attachment, format,
 412                                          dri2_surf->base.Width,
 413                                          dri2_surf->base.Height);
 414       dri2_surf->dri_buffers[attachment] = b;
 415    }
 416    if (b == NULL)
 417       return -1;
 418
 419    memcpy(buffer, b, sizeof *buffer);
 420
 421    return 0;
 422 }
 423
 424 static int
 425 update_buffers(struct dri2_egl_surface *dri2_surf)
 426 {
 427    struct dri2_egl_display *dri2_dpy =
 428       dri2_egl_display(dri2_surf->base.Resource.Display);
 429    int i;
 430
 431    if (dri2_surf->base.Type == EGL_WINDOW_BIT &&
 432        (dri2_surf->base.Width != dri2_surf->wl_win->width ||
 433         dri2_surf->base.Height != dri2_surf->wl_win->height)) {
 434
 435       dri2_wl_release_buffers(dri2_surf);
 436
 437       dri2_surf->base.Width  = dri2_surf->wl_win->width;
 438       dri2_surf->base.Height = dri2_surf->wl_win->height;
 439       dri2_surf->dx = dri2_surf->wl_win->dx;
 440       dri2_surf->dy = dri2_surf->wl_win->dy;
 441    }
 442
 443    if (get_back_bo(dri2_surf) < 0) {
 444       _eglError(EGL_BAD_ALLOC, "failed to allocate color buffer");
 445       return -1;
 446    }
 447
 448    /* If we have an extra unlocked buffer at this point, we had to do triple
 449     * buffering for a while, but now can go back to just double buffering.
 450     * That means we can free any unlocked buffer now. */
 451    for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
 452       if (!dri2_surf->color_buffers[i].locked &&
 453           dri2_surf->color_buffers[i].wl_buffer) {
 454          wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
 455          dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
 456          if (dri2_dpy->is_different_gpu)
 457             dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
 458          dri2_surf->color_buffers[i].wl_buffer = NULL;
 459          dri2_surf->color_buffers[i].dri_image = NULL;
 460          dri2_surf->color_buffers[i].linear_copy = NULL;
 461       }
 462    }
 463
 464    return 0;
 465 }
 466
 467 static __DRIbuffer *
 468 dri2_wl_get_buffers_with_format(__DRIdrawable * driDrawable,
 469                                 int *width, int *height,
 470                                 unsigned int *attachments, int count,
 471                                 int *out_count, void *loaderPrivate)
 472 {
 473    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 474    int i, j;
 475
 476    if (update_buffers(dri2_surf) < 0)
 477       return NULL;
 478
 479    for (i = 0, j = 0; i < 2 * count; i += 2, j++) {
 480       switch (attachments[i]) {
 481       case __DRI_BUFFER_BACK_LEFT:
 482          back_bo_to_dri_buffer(dri2_surf, &dri2_surf->buffers[j]);
 483          break;
 484       default:
 485          if (get_aux_bo(dri2_surf, attachments[i], attachments[i + 1],
 486                         &dri2_surf->buffers[j]) < 0) {
 487             _eglError(EGL_BAD_ALLOC, "failed to allocate aux buffer");
 488             return NULL;
 489          }
 490          break;
 491       }
 492    }
 493
 494    *out_count = j;
 495    if (j == 0)
 496            return NULL;
 497
 498    *width = dri2_surf->base.Width;
 499    *height = dri2_surf->base.Height;
 500
 501    return dri2_surf->buffers;
 502 }
 503
 504 static __DRIbuffer *
 505 dri2_wl_get_buffers(__DRIdrawable * driDrawable,
 506                     int *width, int *height,
 507                     unsigned int *attachments, int count,
 508                     int *out_count, void *loaderPrivate)
 509 {
 510    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 511    unsigned int *attachments_with_format;
 512    __DRIbuffer *buffer;
 513    unsigned int bpp;
 514
 515    int i;
 516
 517    switch (dri2_surf->format) {
 518    case WL_DRM_FORMAT_ARGB8888:
 519    case WL_DRM_FORMAT_XRGB8888:
 520       bpp = 32;
 521       break;
 522    case WL_DRM_FORMAT_RGB565:
 523       bpp = 16;
 524       break;
 525    default:
 526       /* format is not supported */
 527       return NULL;
 528    }
 529
 530    attachments_with_format = calloc(count, 2 * sizeof(unsigned int));
 531    if (!attachments_with_format) {
 532       *out_count = 0;
 533       return NULL;
 534    }
 535
 536    for (i = 0; i < count; ++i) {
 537       attachments_with_format[2*i] = attachments[i];
 538       attachments_with_format[2*i + 1] = bpp;
 539    }
 540
 541    buffer =
 542       dri2_wl_get_buffers_with_format(driDrawable,
 543                                       width, height,
 544                                       attachments_with_format, count,
 545                                       out_count, loaderPrivate);
 546
 547    free(attachments_with_format);
 548
 549    return buffer;
 550 }
 551
 552 static int
 553 image_get_buffers(__DRIdrawable *driDrawable,
 554                   unsigned int format,
 555                   uint32_t *stamp,
 556                   void *loaderPrivate,
 557                   uint32_t buffer_mask,
 558                   struct __DRIimageList *buffers)
 559 {
 560    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 561
 562    if (update_buffers(dri2_surf) < 0)
 563       return 0;
 564
 565    buffers->image_mask = __DRI_IMAGE_BUFFER_BACK;
 566    buffers->back = dri2_surf->back->dri_image;
 567
 568    return 1;
 569 }
 570
 571 static void
 572 dri2_wl_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 573 {
 574    (void) driDrawable;
 575    (void) loaderPrivate;
 576 }
 577
 578 static const __DRIimageLoaderExtension image_loader_extension = {
 579    .base = { __DRI_IMAGE_LOADER, 1 },
 580
 581    .getBuffers          = image_get_buffers,
 582    .flushFrontBuffer    = dri2_wl_flush_front_buffer,
 583 };
 584
 585 static void
 586 wayland_throttle_callback(void *data,
 587                           struct wl_callback *callback,
 588                           uint32_t time)
 589 {
 590    struct dri2_egl_surface *dri2_surf = data;
 591
 592    dri2_surf->throttle_callback = NULL;
 593    wl_callback_destroy(callback);
 594 }
 595
 596 static const struct wl_callback_listener throttle_listener = {
 597    wayland_throttle_callback
 598 };
 599
 600 static void
 601 create_wl_buffer(struct dri2_egl_surface *dri2_surf)
 602 {
 603    struct dri2_egl_display *dri2_dpy =
 604       dri2_egl_display(dri2_surf->base.Resource.Display);
 605    __DRIimage *image;
 606    int fd, stride, name;
 607
 608    if (dri2_surf->current->wl_buffer != NULL)
 609       return;
 610
 611    if (dri2_dpy->is_different_gpu) {
 612       image = dri2_surf->current->linear_copy;
 613    } else {
 614       image = dri2_surf->current->dri_image;
 615    }
 616    if (dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME) {
 617       dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FD, &fd);
 618       dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
 619
 620       dri2_surf->current->wl_buffer =
 621          wl_drm_create_prime_buffer(dri2_dpy->wl_drm,
 622                                     fd,
 623                                     dri2_surf->base.Width,
 624                                     dri2_surf->base.Height,
 625                                     dri2_surf->format,
 626                                     0, stride,
 627                                     0, 0,
 628                                     0, 0);
 629       close(fd);
 630    } else {
 631       dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
 632       dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
 633
 634       dri2_surf->current->wl_buffer =
 635          wl_drm_create_buffer(dri2_dpy->wl_drm,
 636                               name,
 637                               dri2_surf->base.Width,
 638                               dri2_surf->base.Height,
 639                               stride,
 640                               dri2_surf->format);
 641    }
 642
 643    wl_proxy_set_queue((struct wl_proxy *) dri2_surf->current->wl_buffer,
 644                       dri2_dpy->wl_queue);
 645    wl_buffer_add_listener(dri2_surf->current->wl_buffer,
 646                           &wl_buffer_listener, dri2_surf);
 647 }
 648
 649 /**
 650  * Called via eglSwapBuffers(), drv->API.SwapBuffers().
 651  */
 652 static EGLBoolean
 653 dri2_wl_swap_buffers_with_damage(_EGLDriver *drv,
 654                                  _EGLDisplay *disp,
 655                                  _EGLSurface *draw,
 656                                  const EGLint *rects,
 657                                  EGLint n_rects)
 658 {
 659    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 660    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
 661    int i;
 662
 663    for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++)
 664       if (dri2_surf->color_buffers[i].age > 0)
 665          dri2_surf->color_buffers[i].age++;
 666
 667    /* Make sure we have a back buffer in case we're swapping without ever
 668     * rendering. */
 669    if (get_back_bo(dri2_surf) < 0) {
 670       _eglError(EGL_BAD_ALLOC, "dri2_swap_buffers");
 671       return EGL_FALSE;
 672    }
 673
 674    if (draw->SwapInterval > 0) {
 675       dri2_surf->throttle_callback =
 676          wl_surface_frame(dri2_surf->wl_win->surface);
 677       wl_callback_add_listener(dri2_surf->throttle_callback,
 678                                &throttle_listener, dri2_surf);
 679       wl_proxy_set_queue((struct wl_proxy *) dri2_surf->throttle_callback,
 680                          dri2_dpy->wl_queue);
 681    }
 682
 683    dri2_surf->back->age = 1;
 684    dri2_surf->current = dri2_surf->back;
 685    dri2_surf->back = NULL;
 686
 687    create_wl_buffer(dri2_surf);
 688
 689    wl_surface_attach(dri2_surf->wl_win->surface,
 690                      dri2_surf->current->wl_buffer,
 691                      dri2_surf->dx, dri2_surf->dy);
 692
 693    dri2_surf->wl_win->attached_width  = dri2_surf->base.Width;
 694    dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
 695    /* reset resize growing parameters */
 696    dri2_surf->dx = 0;
 697    dri2_surf->dy = 0;
 698
 699    if (n_rects == 0) {
 700       wl_surface_damage(dri2_surf->wl_win->surface,
 701                         0, 0, INT32_MAX, INT32_MAX);
 702    } else {
 703       for (i = 0; i < n_rects; i++) {
 704          const int *rect = &rects[i * 4];
 705          wl_surface_damage(dri2_surf->wl_win->surface,
 706                            rect[0],
 707                            dri2_surf->base.Height - rect[1] - rect[3],
 708                            rect[2], rect[3]);
 709       }
 710    }
 711
 712    if (dri2_dpy->is_different_gpu) {
 713       _EGLContext *ctx = _eglGetCurrentContext();
 714       struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
 715       dri2_dpy->image->blitImage(dri2_ctx->dri_context,
 716                                  dri2_surf->current->linear_copy,
 717                                  dri2_surf->current->dri_image,
 718                                  0, 0, dri2_surf->base.Width,
 719                                  dri2_surf->base.Height,
 720                                  0, 0, dri2_surf->base.Width,
 721                                  dri2_surf->base.Height, 0);
 722    }
 723
 724    dri2_flush_drawable_for_swapbuffers(disp, draw);
 725    (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
 726
 727    wl_surface_commit(dri2_surf->wl_win->surface);
 728
 729    /* If we're not waiting for a frame callback then we'll at least throttle
 730     * to a sync callback so that we always give a chance for the compositor to
 731     * handle the commit and send a release event before checking for a free
 732     * buffer */
 733    if (dri2_surf->throttle_callback == NULL) {
 734       dri2_surf->throttle_callback = wl_display_sync(dri2_dpy->wl_dpy);
 735       wl_callback_add_listener(dri2_surf->throttle_callback,
 736                                &throttle_listener, dri2_surf);
 737       wl_proxy_set_queue((struct wl_proxy *) dri2_surf->throttle_callback,
 738                          dri2_dpy->wl_queue);
 739    }
 740
 741    wl_display_flush(dri2_dpy->wl_dpy);
 742
 743    return EGL_TRUE;
 744 }
 745
 746 static EGLint
 747 dri2_wl_query_buffer_age(_EGLDriver *drv,
 748                          _EGLDisplay *disp, _EGLSurface *surface)
 749 {
 750    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface);
 751
 752    if (get_back_bo(dri2_surf) < 0) {
 753       _eglError(EGL_BAD_ALLOC, "dri2_query_buffer_age");
 754       return 0;
 755    }
 756
 757    return dri2_surf->back->age;
 758 }
 759
 760 static EGLBoolean
 761 dri2_wl_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 762 {
 763    return dri2_wl_swap_buffers_with_damage (drv, disp, draw, NULL, 0);
 764 }
 765
 766 static struct wl_buffer *
 767 dri2_wl_create_wayland_buffer_from_image(_EGLDriver *drv,
 768                                           _EGLDisplay *disp,
 769                                           _EGLImage *img)
 770 {
 771    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 772    struct dri2_egl_image *dri2_img = dri2_egl_image(img);
 773    __DRIimage *image = dri2_img->dri_image;
 774    struct wl_buffer *buffer;
 775    int width, height, format, pitch;
 776    enum wl_drm_format wl_format;
 777
 778    dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FORMAT, &format);
 779
 780    switch (format) {
 781    case __DRI_IMAGE_FORMAT_ARGB8888:
 782       if (!(dri2_dpy->formats & HAS_ARGB8888))
 783          goto bad_format;
 784       wl_format = WL_DRM_FORMAT_ARGB8888;
 785       break;
 786    case __DRI_IMAGE_FORMAT_XRGB8888:
 787       if (!(dri2_dpy->formats & HAS_XRGB8888))
 788          goto bad_format;
 789       wl_format = WL_DRM_FORMAT_XRGB8888;
 790       break;
 791    default:
 792       goto bad_format;
 793    }
 794
 795    dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_WIDTH, &width);
 796    dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_HEIGHT, &height);
 797    dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &pitch);
 798
 799    if (dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME) {
 800       int fd;
 801
 802       dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FD, &fd);
 803
 804       buffer =
 805          wl_drm_create_prime_buffer(dri2_dpy->wl_drm,
 806                                     fd,
 807                                     width, height,
 808                                     wl_format,
 809                                     0, pitch,
 810                                     0, 0,
 811                                     0, 0);
 812
 813       close(fd);
 814    } else {
 815       int name;
 816
 817       dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
 818
 819       buffer =
 820          wl_drm_create_buffer(dri2_dpy->wl_drm,
 821                               name,
 822                               width, height,
 823                               pitch,
 824                               wl_format);
 825    }
 826
 827    /* The buffer object will have been created with our internal event queue
 828     * because it is using the wl_drm object as a proxy factory. We want the
 829     * buffer to be used by the application so we'll reset it to the display's
 830     * default event queue */
 831    if (buffer)
 832       wl_proxy_set_queue((struct wl_proxy *) buffer, NULL);
 833
 834    return buffer;
 835
 836 bad_format:
 837    _eglError(EGL_BAD_MATCH, "unsupported image format");
 838    return NULL;
 839 }
 840
 841 static char
 842 is_fd_render_node(int fd)
 843 {
 844    struct stat render;
 845
 846    if (fstat(fd, &render))
 847       return 0;
 848
 849    if (!S_ISCHR(render.st_mode))
 850       return 0;
 851
 852    if (render.st_rdev & 0x80)
 853       return 1;
 854    return 0;
 855 }
 856
 857 static int
 858 dri2_wl_authenticate(_EGLDisplay *disp, uint32_t id)
 859 {
 860    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 861    int ret = 0;
 862
 863    if (dri2_dpy->is_render_node) {
 864       _eglLog(_EGL_WARNING, "wayland-egl: client asks server to "
 865                             "authenticate for render-nodes");
 866       return 0;
 867    }
 868    dri2_dpy->authenticated = 0;
 869
 870    wl_drm_authenticate(dri2_dpy->wl_drm, id);
 871    if (roundtrip(dri2_dpy) < 0)
 872       ret = -1;
 873
 874    if (!dri2_dpy->authenticated)
 875       ret = -1;
 876
 877    /* reset authenticated */
 878    dri2_dpy->authenticated = 1;
 879
 880    return ret;
 881 }
 882
 883 static void
 884 drm_handle_device(void *data, struct wl_drm *drm, const char *device)
 885 {
 886    struct dri2_egl_display *dri2_dpy = data;
 887    drm_magic_t magic;
 888
 889    dri2_dpy->device_name = strdup(device);
 890    if (!dri2_dpy->device_name)
 891       return;
 892
 893 #ifdef O_CLOEXEC
 894    dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR | O_CLOEXEC);
 895    if (dri2_dpy->fd == -1 && errno == EINVAL)
 896 #endif
 897    {
 898       dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
 899       if (dri2_dpy->fd != -1)
 900          fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) |
 901             FD_CLOEXEC);
 902    }
 903    if (dri2_dpy->fd == -1) {
 904       _eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)",
 905               dri2_dpy->device_name, strerror(errno));
 906       return;
 907    }
 908
 909    if (is_fd_render_node(dri2_dpy->fd)) {
 910       dri2_dpy->authenticated = 1;
 911    } else {
 912       drmGetMagic(dri2_dpy->fd, &magic);
 913       wl_drm_authenticate(dri2_dpy->wl_drm, magic);
 914    }
 915 }
 916
 917 static void
 918 drm_handle_format(void *data, struct wl_drm *drm, uint32_t format)
 919 {
 920    struct dri2_egl_display *dri2_dpy = data;
 921
 922    switch (format) {
 923    case WL_DRM_FORMAT_ARGB8888:
 924       dri2_dpy->formats |= HAS_ARGB8888;
 925       break;
 926    case WL_DRM_FORMAT_XRGB8888:
 927       dri2_dpy->formats |= HAS_XRGB8888;
 928       break;
 929    case WL_DRM_FORMAT_RGB565:
 930       dri2_dpy->formats |= HAS_RGB565;
 931       break;
 932    }
 933 }
 934
 935 static void
 936 drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t value)
 937 {
 938    struct dri2_egl_display *dri2_dpy = data;
 939
 940    dri2_dpy->capabilities = value;
 941 }
 942
 943 static void
 944 drm_handle_authenticated(void *data, struct wl_drm *drm)
 945 {
 946    struct dri2_egl_display *dri2_dpy = data;
 947
 948    dri2_dpy->authenticated = 1;
 949 }
 950
 951 static const struct wl_drm_listener drm_listener = {
 952         drm_handle_device,
 953         drm_handle_format,
 954         drm_handle_authenticated,
 955         drm_handle_capabilities
 956 };
 957
 958 static void
 959 registry_handle_global(void *data, struct wl_registry *registry, uint32_t name,
 960                        const char *interface, uint32_t version)
 961 {
 962    struct dri2_egl_display *dri2_dpy = data;
 963
 964    if (version > 1)
 965       version = 2;
 966    if (strcmp(interface, "wl_drm") == 0) {
 967       dri2_dpy->wl_drm =
 968          wl_registry_bind(registry, name, &wl_drm_interface, version);
 969       wl_drm_add_listener(dri2_dpy->wl_drm, &drm_listener, dri2_dpy);
 970    }
 971 }
 972
 973 static void
 974 registry_handle_global_remove(void *data, struct wl_registry *registry,
 975                               uint32_t name)
 976 {
 977 }
 978
 979 static const struct wl_registry_listener registry_listener = {
 980    registry_handle_global,
 981    registry_handle_global_remove
 982 };
 983
 984 static EGLBoolean
 985 dri2_wl_swap_interval(_EGLDriver *drv,
 986                    _EGLDisplay *disp,
 987                    _EGLSurface *surf,
 988                    EGLint interval)
 989 {
 990    if (interval > surf->Config->MaxSwapInterval)
 991       interval = surf->Config->MaxSwapInterval;
 992    else if (interval < surf->Config->MinSwapInterval)
 993       interval = surf->Config->MinSwapInterval;
 994
 995    surf->SwapInterval = interval;
 996
 997    return EGL_TRUE;
 998 }
 999
1000 static void
1001 dri2_wl_setup_swap_interval(struct dri2_egl_display *dri2_dpy)
1002 {
1003    GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
1004
1005    /* We can't use values greater than 1 on Wayland because we are using the
1006     * frame callback to synchronise the frame and the only way we be sure to
1007     * get a frame callback is to attach a new buffer. Therefore we can't just
1008     * sit drawing nothing to wait until the next ‘n’ frame callbacks */
1009
1010    if (dri2_dpy->config)
1011       dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
1012                                      "vblank_mode", &vblank_mode);
1013    switch (vblank_mode) {
1014    case DRI_CONF_VBLANK_NEVER:
1015       dri2_dpy->min_swap_interval = 0;
1016       dri2_dpy->max_swap_interval = 0;
1017       dri2_dpy->default_swap_interval = 0;
1018       break;
1019    case DRI_CONF_VBLANK_ALWAYS_SYNC:
1020       dri2_dpy->min_swap_interval = 1;
1021       dri2_dpy->max_swap_interval = 1;
1022       dri2_dpy->default_swap_interval = 1;
1023       break;
1024    case DRI_CONF_VBLANK_DEF_INTERVAL_0:
1025       dri2_dpy->min_swap_interval = 0;
1026       dri2_dpy->max_swap_interval = 1;
1027       dri2_dpy->default_swap_interval = 0;
1028       break;
1029    default:
1030    case DRI_CONF_VBLANK_DEF_INTERVAL_1:
1031       dri2_dpy->min_swap_interval = 0;
1032       dri2_dpy->max_swap_interval = 1;
1033       dri2_dpy->default_swap_interval = 1;
1034       break;
1035    }
1036 }
1037
1038 static struct dri2_egl_display_vtbl dri2_wl_display_vtbl = {
1039    .authenticate = dri2_wl_authenticate,
1040    .create_window_surface = dri2_wl_create_window_surface,
1041    .create_pixmap_surface = dri2_wl_create_pixmap_surface,
1042    .create_pbuffer_surface = dri2_fallback_create_pbuffer_surface,
1043    .destroy_surface = dri2_wl_destroy_surface,
1044    .create_image = dri2_create_image_khr,
1045    .swap_interval = dri2_wl_swap_interval,
1046    .swap_buffers = dri2_wl_swap_buffers,
1047    .swap_buffers_with_damage = dri2_wl_swap_buffers_with_damage,
1048    .swap_buffers_region = dri2_fallback_swap_buffers_region,
1049    .post_sub_buffer = dri2_fallback_post_sub_buffer,
1050    .copy_buffers = dri2_fallback_copy_buffers,
1051    .query_buffer_age = dri2_wl_query_buffer_age,
1052    .create_wayland_buffer_from_image = dri2_wl_create_wayland_buffer_from_image,
1053    .get_sync_values = dri2_fallback_get_sync_values,
1054 };
1055
1056 EGLBoolean
1057 dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
1058 {
1059    struct dri2_egl_display *dri2_dpy;
1060    const __DRIconfig *config;
1061    uint32_t types;
1062    int i;
1063    static const unsigned int argb_masks[4] =
1064       { 0xff0000, 0xff00, 0xff, 0xff000000 };
1065    static const unsigned int rgb_masks[4] = { 0xff0000, 0xff00, 0xff, 0 };
1066    static const unsigned int rgb565_masks[4] = { 0xf800, 0x07e0, 0x001f, 0 };
1067
1068    loader_set_logger(_eglLog);
1069
1070    dri2_dpy = calloc(1, sizeof *dri2_dpy);
1071    if (!dri2_dpy)
1072       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1073
1074    disp->DriverData = (void *) dri2_dpy;
1075    if (disp->PlatformDisplay == NULL) {
1076       dri2_dpy->wl_dpy = wl_display_connect(NULL);
1077       if (dri2_dpy->wl_dpy == NULL)
1078          goto cleanup_dpy;
1079       dri2_dpy->own_device = 1;
1080    } else {
1081       dri2_dpy->wl_dpy = disp->PlatformDisplay;
1082    }
1083
1084    dri2_dpy->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
1085
1086    if (dri2_dpy->own_device)
1087       wl_display_dispatch_pending(dri2_dpy->wl_dpy);
1088
1089    dri2_dpy->wl_registry = wl_display_get_registry(dri2_dpy->wl_dpy);
1090    wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_registry,
1091                       dri2_dpy->wl_queue);
1092    wl_registry_add_listener(dri2_dpy->wl_registry,
1093                             &registry_listener, dri2_dpy);
1094    if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_drm == NULL)
1095       goto cleanup_registry;
1096
1097    if (roundtrip(dri2_dpy) < 0 || dri2_dpy->fd == -1)
1098       goto cleanup_drm;
1099
1100    if (roundtrip(dri2_dpy) < 0 || !dri2_dpy->authenticated)
1101       goto cleanup_fd;
1102
1103    dri2_dpy->fd = loader_get_user_preferred_fd(dri2_dpy->fd,
1104                                                &dri2_dpy->is_different_gpu);
1105    if (dri2_dpy->is_different_gpu) {
1106       free(dri2_dpy->device_name);
1107       dri2_dpy->device_name = loader_get_device_name_for_fd(dri2_dpy->fd);
1108       if (!dri2_dpy->device_name) {
1109          _eglError(EGL_BAD_ALLOC, "wayland-egl: failed to get device name "
1110                                   "for requested GPU");
1111          goto cleanup_fd;
1112       }
1113    }
1114
1115    /* we have to do the check now, because loader_get_user_preferred_fd
1116     * will return a render-node when the requested gpu is different
1117     * to the server, but also if the client asks for the same gpu than
1118     * the server by requesting its pci-id */
1119    dri2_dpy->is_render_node = is_fd_render_node(dri2_dpy->fd);
1120
1121    dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd, 0);
1122    if (dri2_dpy->driver_name == NULL) {
1123       _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
1124       goto cleanup_fd;
1125    }
1126
1127    if (!dri2_load_driver(disp))
1128       goto cleanup_driver_name;
1129
1130    dri2_dpy->extensions[0] = &image_loader_extension.base;
1131    dri2_dpy->extensions[1] = &image_lookup_extension.base;
1132    dri2_dpy->extensions[2] = &use_invalidate.base;
1133
1134    /* render nodes cannot use Gem names, and thus do not support
1135     * the __DRI_DRI2_LOADER extension */
1136    if (!dri2_dpy->is_render_node) {
1137       dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
1138       dri2_dpy->dri2_loader_extension.base.version = 3;
1139       dri2_dpy->dri2_loader_extension.getBuffers = dri2_wl_get_buffers;
1140       dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_wl_flush_front_buffer;
1141       dri2_dpy->dri2_loader_extension.getBuffersWithFormat =
1142          dri2_wl_get_buffers_with_format;
1143       dri2_dpy->extensions[3] = &dri2_dpy->dri2_loader_extension.base;
1144       dri2_dpy->extensions[4] = NULL;
1145    } else
1146       dri2_dpy->extensions[3] = NULL;
1147
1148    dri2_dpy->swap_available = EGL_TRUE;
1149
1150    if (!dri2_create_screen(disp))
1151       goto cleanup_driver;
1152
1153    dri2_wl_setup_swap_interval(dri2_dpy);
1154
1155    /* To use Prime, we must have _DRI_IMAGE v7 at least.
1156     * createImageFromFds support indicates that Prime export/import
1157     * is supported by the driver. Fall back to
1158     * gem names if we don't have Prime support. */
1159
1160    if (dri2_dpy->image->base.version < 7 ||
1161        dri2_dpy->image->createImageFromFds == NULL)
1162       dri2_dpy->capabilities &= ~WL_DRM_CAPABILITY_PRIME;
1163
1164    /* We cannot use Gem names with render-nodes, only prime fds (dma-buf).
1165     * The server needs to accept them */
1166    if (dri2_dpy->is_render_node &&
1167        !(dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME)) {
1168       _eglLog(_EGL_WARNING, "wayland-egl: display is not render-node capable");
1169       goto cleanup_screen;
1170    }
1171
1172    if (dri2_dpy->is_different_gpu &&
1173        (dri2_dpy->image->base.version < 9 ||
1174         dri2_dpy->image->blitImage == NULL)) {
1175       _eglLog(_EGL_WARNING, "wayland-egl: Different GPU selected, but the "
1176                             "Image extension in the driver is not "
1177                             "compatible. Version 9 or later and blitImage() "
1178                             "are required");
1179       goto cleanup_screen;
1180    }
1181
1182    types = EGL_WINDOW_BIT;
1183    for (i = 0; dri2_dpy->driver_configs[i]; i++) {
1184       config = dri2_dpy->driver_configs[i];
1185       if (dri2_dpy->formats & HAS_XRGB8888)
1186          dri2_add_config(disp, config, i + 1, types, NULL, rgb_masks);
1187       if (dri2_dpy->formats & HAS_ARGB8888)
1188          dri2_add_config(disp, config, i + 1, types, NULL, argb_masks);
1189       if (dri2_dpy->formats & HAS_RGB565)
1190         dri2_add_config(disp, config, i + 1, types, NULL, rgb565_masks);
1191    }
1192
1193    disp->Extensions.WL_bind_wayland_display = EGL_TRUE;
1194    /* When cannot convert EGLImage to wl_buffer when on a different gpu,
1195     * because the buffer of the EGLImage has likely a tiling mode the server
1196     * gpu won't support. These is no way to check for now. Thus do not support the
1197     * extension */
1198    if (!dri2_dpy->is_different_gpu) {
1199       disp->Extensions.WL_create_wayland_buffer_from_image = EGL_TRUE;
1200    } else {
1201       dri2_wl_display_vtbl.create_wayland_buffer_from_image =
1202          dri2_fallback_create_wayland_buffer_from_image;
1203    }
1204    disp->Extensions.EXT_buffer_age = EGL_TRUE;
1205
1206    disp->Extensions.EXT_swap_buffers_with_damage = EGL_TRUE;
1207
1208    /* we're supporting EGL 1.4 */
1209    disp->VersionMajor = 1;
1210    disp->VersionMinor = 4;
1211
1212    /* Fill vtbl last to prevent accidentally calling virtual function during
1213     * initialization.
1214     */
1215    dri2_dpy->vtbl = &dri2_wl_display_vtbl;
1216
1217    return EGL_TRUE;
1218
1219  cleanup_screen:
1220    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
1221  cleanup_driver:
1222    dlclose(dri2_dpy->driver);
1223  cleanup_driver_name:
1224    free(dri2_dpy->driver_name);
1225  cleanup_fd:
1226    close(dri2_dpy->fd);
1227  cleanup_drm:
1228    free(dri2_dpy->device_name);
1229    wl_drm_destroy(dri2_dpy->wl_drm);
1230  cleanup_registry:
1231    wl_registry_destroy(dri2_dpy->wl_registry);
1232    wl_event_queue_destroy(dri2_dpy->wl_queue);
1233  cleanup_dpy:
1234    free(dri2_dpy);
1235
1236    return EGL_FALSE;
1237 }