src/egl/drivers/dri2/platform_wayland.c

   1 /*
   2  * Copyright © 2011 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 <stdlib.h>
  30 #include <string.h>
  31 #include <limits.h>
  32 #include <dlfcn.h>
  33 #include <errno.h>
  34 #include <unistd.h>
  35 #include <fcntl.h>
  36 #include <xf86drm.h>
  37
  38 #include "egl_dri2.h"
  39
  40 #include <wayland-client.h>
  41 #include "wayland-drm-client-protocol.h"
  42
  43 enum wl_drm_format_flags {
  44    HAS_ARGB8888 = 1,
  45    HAS_XRGB8888 = 2
  46 };
  47
  48 static void
  49 sync_callback(void *data, struct wl_callback *callback, uint32_t serial)
  50 {
  51    int *done = data;
  52
  53    *done = 1;
  54    wl_callback_destroy(callback);
  55 }
  56
  57 static const struct wl_callback_listener sync_listener = {
  58    sync_callback
  59 };
  60
  61 static int
  62 roundtrip(struct dri2_egl_display *dri2_dpy)
  63 {
  64    struct wl_callback *callback;
  65    int done = 0, ret = 0;
  66
  67    callback = wl_display_sync(dri2_dpy->wl_dpy);
  68    wl_callback_add_listener(callback, &sync_listener, &done);
  69    wl_proxy_set_queue((struct wl_proxy *) callback, dri2_dpy->wl_queue);
  70    while (ret != -1 && !done)
  71       ret = wl_display_dispatch_queue(dri2_dpy->wl_dpy, dri2_dpy->wl_queue);
  72
  73    return ret;
  74 }
  75
  76 static void
  77 wl_buffer_release(void *data, struct wl_buffer *buffer)
  78 {
  79    struct dri2_egl_surface *dri2_surf = data;
  80    int i;
  81
  82    for (i = 0; i < WL_BUFFER_COUNT; ++i)
  83       if (dri2_surf->wl_drm_buffer[i] == buffer)
  84          break;
  85
  86    assert(i <= WL_BUFFER_COUNT);
  87
  88    /* not found? */
  89    if (i == WL_BUFFER_COUNT)
  90       return;
  91
  92    dri2_surf->wl_buffer_lock[i] = 0;
  93
  94 }
  95
  96 static struct wl_buffer_listener wl_buffer_listener = {
  97    wl_buffer_release
  98 };
  99
 100 /**
 101  * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
 102  */
 103 static _EGLSurface *
 104 dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 105                     _EGLConfig *conf, EGLNativeWindowType window,
 106                     const EGLint *attrib_list)
 107 {
 108    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 109    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
 110    struct dri2_egl_surface *dri2_surf;
 111    int i;
 112
 113    (void) drv;
 114
 115    dri2_surf = malloc(sizeof *dri2_surf);
 116    if (!dri2_surf) {
 117       _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
 118       return NULL;
 119    }
 120
 121    if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
 122       goto cleanup_surf;
 123
 124    for (i = 0; i < WL_BUFFER_COUNT; ++i) {
 125       dri2_surf->wl_drm_buffer[i] = NULL;
 126       dri2_surf->wl_buffer_lock[i] = 0;
 127    }
 128
 129    for (i = 0; i < __DRI_BUFFER_COUNT; ++i)
 130       dri2_surf->dri_buffers[i] = NULL;
 131
 132    dri2_surf->pending_buffer = NULL;
 133    dri2_surf->third_buffer = NULL;
 134    dri2_surf->frame_callback = NULL;
 135
 136    if (conf->AlphaSize == 0)
 137       dri2_surf->format = WL_DRM_FORMAT_XRGB8888;
 138    else
 139       dri2_surf->format = WL_DRM_FORMAT_ARGB8888;
 140
 141    switch (type) {
 142    case EGL_WINDOW_BIT:
 143       dri2_surf->wl_win = (struct wl_egl_window *) window;
 144
 145       dri2_surf->base.Width =  -1;
 146       dri2_surf->base.Height = -1;
 147       break;
 148    default:
 149       goto cleanup_surf;
 150    }
 151
 152    dri2_surf->dri_drawable =
 153       (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
 154                                             type == EGL_WINDOW_BIT ?
 155                                             dri2_conf->dri_double_config :
 156                                             dri2_conf->dri_single_config,
 157                                             dri2_surf);
 158    if (dri2_surf->dri_drawable == NULL) {
 159       _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
 160       goto cleanup_dri_drawable;
 161    }
 162
 163    return &dri2_surf->base;
 164
 165  cleanup_dri_drawable:
 166    dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
 167  cleanup_surf:
 168    free(dri2_surf);
 169
 170    return NULL;
 171 }
 172
 173 /**
 174  * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
 175  */
 176 static _EGLSurface *
 177 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
 178                            _EGLConfig *conf, EGLNativeWindowType window,
 179                            const EGLint *attrib_list)
 180 {
 181    return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
 182                               window, attrib_list);
 183 }
 184
 185 /**
 186  * Called via eglDestroySurface(), drv->API.DestroySurface().
 187  */
 188 static EGLBoolean
 189 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 190 {
 191    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 192    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 193    int i;
 194
 195    (void) drv;
 196
 197    if (!_eglPutSurface(surf))
 198       return EGL_TRUE;
 199
 200    (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
 201
 202    for (i = 0; i < WL_BUFFER_COUNT; ++i)
 203       if (dri2_surf->wl_drm_buffer[i])
 204          wl_buffer_destroy(dri2_surf->wl_drm_buffer[i]);
 205
 206    for (i = 0; i < __DRI_BUFFER_COUNT; ++i)
 207       if (dri2_surf->dri_buffers[i])
 208          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 209                                        dri2_surf->dri_buffers[i]);
 210
 211    if (dri2_surf->third_buffer) {
 212       dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 213                                     dri2_surf->third_buffer);
 214    }
 215
 216    free(surf);
 217
 218    return EGL_TRUE;
 219 }
 220
 221 static struct wl_buffer *
 222 wayland_create_buffer(struct dri2_egl_surface *dri2_surf,
 223                       __DRIbuffer *buffer)
 224 {
 225    struct dri2_egl_display *dri2_dpy =
 226       dri2_egl_display(dri2_surf->base.Resource.Display);
 227    struct wl_buffer *buf;
 228
 229    buf = wl_drm_create_buffer(dri2_dpy->wl_drm, buffer->name,
 230                               dri2_surf->base.Width, dri2_surf->base.Height,
 231                               buffer->pitch, dri2_surf->format);
 232    wl_buffer_add_listener(buf, &wl_buffer_listener, dri2_surf);
 233
 234    return buf;
 235 }
 236
 237 static void
 238 dri2_process_back_buffer(struct dri2_egl_surface *dri2_surf, unsigned format)
 239 {
 240    struct dri2_egl_display *dri2_dpy =
 241       dri2_egl_display(dri2_surf->base.Resource.Display);
 242
 243    (void) format;
 244
 245    switch (dri2_surf->base.Type) {
 246    case EGL_WINDOW_BIT:
 247       /* allocate a front buffer for our double-buffered window*/
 248       if (dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT] != NULL)
 249          break;
 250       dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT] =
 251          dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
 252                __DRI_BUFFER_FRONT_LEFT, format,
 253                dri2_surf->base.Width, dri2_surf->base.Height);
 254       break;
 255    default:
 256       break;
 257    }
 258 }
 259
 260 static void
 261 dri2_release_pending_buffer(void *data,
 262                             struct wl_callback *callback, uint32_t time)
 263 {
 264    struct dri2_egl_surface *dri2_surf = data;
 265    struct dri2_egl_display *dri2_dpy =
 266       dri2_egl_display(dri2_surf->base.Resource.Display);
 267
 268    /* FIXME: print internal error */
 269    if (!dri2_surf->pending_buffer)
 270       return;
 271
 272    dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 273                                  dri2_surf->pending_buffer);
 274    dri2_surf->pending_buffer = NULL;
 275
 276    wl_callback_destroy(callback);
 277 }
 278
 279 static const struct wl_callback_listener release_buffer_listener = {
 280    dri2_release_pending_buffer
 281 };
 282
 283 static void
 284 dri2_release_buffers(struct dri2_egl_surface *dri2_surf)
 285 {
 286    struct dri2_egl_display *dri2_dpy =
 287       dri2_egl_display(dri2_surf->base.Resource.Display);
 288    struct wl_callback *callback;
 289    int i;
 290
 291    if (dri2_surf->third_buffer) {
 292       dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 293                                     dri2_surf->third_buffer);
 294       dri2_surf->third_buffer = NULL;
 295    }
 296
 297    for (i = 0; i < __DRI_BUFFER_COUNT; ++i) {
 298       if (dri2_surf->dri_buffers[i]) {
 299          switch (i) {
 300          case __DRI_BUFFER_FRONT_LEFT:
 301             if (dri2_surf->pending_buffer)
 302                roundtrip(dri2_dpy);
 303             dri2_surf->pending_buffer = dri2_surf->dri_buffers[i];
 304             callback = wl_display_sync(dri2_dpy->wl_dpy);
 305             wl_callback_add_listener(callback,
 306                                      &release_buffer_listener, dri2_surf);
 307             wl_proxy_set_queue((struct wl_proxy *) callback,
 308                                dri2_dpy->wl_queue);
 309             break;
 310          default:
 311             dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 312                                           dri2_surf->dri_buffers[i]);
 313             break;
 314          }
 315          dri2_surf->dri_buffers[i] = NULL;
 316       }
 317    }
 318 }
 319
 320 static inline void
 321 pointer_swap(const void **p1, const void **p2)
 322 {
 323    const void *tmp = *p1;
 324    *p1 = *p2;
 325    *p2 = tmp;
 326 }
 327
 328 static void
 329 destroy_third_buffer(struct dri2_egl_surface *dri2_surf)
 330 {
 331    struct dri2_egl_display *dri2_dpy =
 332       dri2_egl_display(dri2_surf->base.Resource.Display);
 333
 334    if (dri2_surf->third_buffer == NULL)
 335       return;
 336
 337    dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 338                                  dri2_surf->third_buffer);
 339    dri2_surf->third_buffer = NULL;
 340
 341    if (dri2_surf->wl_drm_buffer[WL_BUFFER_THIRD])
 342       wl_buffer_destroy(dri2_surf->wl_drm_buffer[WL_BUFFER_THIRD]);
 343    dri2_surf->wl_drm_buffer[WL_BUFFER_THIRD] = NULL;
 344    dri2_surf->wl_buffer_lock[WL_BUFFER_THIRD] = 0;
 345 }
 346
 347 static void
 348 swap_wl_buffers(struct dri2_egl_surface *dri2_surf,
 349                 enum wayland_buffer_type a, enum wayland_buffer_type b)
 350 {
 351    int tmp;
 352
 353    tmp = dri2_surf->wl_buffer_lock[a];
 354    dri2_surf->wl_buffer_lock[a] = dri2_surf->wl_buffer_lock[b];
 355    dri2_surf->wl_buffer_lock[b] = tmp;
 356
 357    pointer_swap((const void **) &dri2_surf->wl_drm_buffer[a],
 358                 (const void **) &dri2_surf->wl_drm_buffer[b]);
 359 }
 360
 361 static void
 362 swap_back_and_third(struct dri2_egl_surface *dri2_surf)
 363 {
 364    if (dri2_surf->wl_buffer_lock[WL_BUFFER_THIRD])
 365       destroy_third_buffer(dri2_surf);
 366
 367    pointer_swap((const void **) &dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT],
 368                 (const void **) &dri2_surf->third_buffer);
 369
 370    swap_wl_buffers(dri2_surf, WL_BUFFER_BACK, WL_BUFFER_THIRD);
 371 }
 372
 373 static void
 374 dri2_prior_buffer_creation(struct dri2_egl_surface *dri2_surf,
 375                            unsigned int type)
 376 {
 377    switch (type) {
 378    case __DRI_BUFFER_BACK_LEFT:
 379          if (dri2_surf->wl_buffer_lock[WL_BUFFER_BACK])
 380             swap_back_and_third(dri2_surf);
 381          else if (dri2_surf->third_buffer)
 382             destroy_third_buffer(dri2_surf);
 383          break;
 384    default:
 385          break;
 386
 387    }
 388 }
 389
 390 static __DRIbuffer *
 391 dri2_get_buffers_with_format(__DRIdrawable * driDrawable,
 392                              int *width, int *height,
 393                              unsigned int *attachments, int count,
 394                              int *out_count, void *loaderPrivate)
 395 {
 396    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 397    struct dri2_egl_display *dri2_dpy =
 398       dri2_egl_display(dri2_surf->base.Resource.Display);
 399    int i;
 400
 401    if (dri2_surf->base.Type == EGL_WINDOW_BIT &&
 402        (dri2_surf->base.Width != dri2_surf->wl_win->width ||
 403         dri2_surf->base.Height != dri2_surf->wl_win->height)) {
 404
 405       dri2_release_buffers(dri2_surf);
 406
 407       dri2_surf->base.Width  = dri2_surf->wl_win->width;
 408       dri2_surf->base.Height = dri2_surf->wl_win->height;
 409       dri2_surf->dx = dri2_surf->wl_win->dx;
 410       dri2_surf->dy = dri2_surf->wl_win->dy;
 411
 412       for (i = 0; i < WL_BUFFER_COUNT; ++i) {
 413          if (dri2_surf->wl_drm_buffer[i])
 414             wl_buffer_destroy(dri2_surf->wl_drm_buffer[i]);
 415          dri2_surf->wl_drm_buffer[i]  = NULL;
 416          dri2_surf->wl_buffer_lock[i] = 0;
 417       }
 418    }
 419
 420    dri2_surf->buffer_count = 0;
 421    for (i = 0; i < 2*count; i+=2) {
 422       assert(attachments[i] < __DRI_BUFFER_COUNT);
 423       assert(dri2_surf->buffer_count < 5);
 424
 425       dri2_prior_buffer_creation(dri2_surf, attachments[i]);
 426
 427       if (dri2_surf->dri_buffers[attachments[i]] == NULL) {
 428
 429          dri2_surf->dri_buffers[attachments[i]] =
 430             dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
 431                   attachments[i], attachments[i+1],
 432                   dri2_surf->base.Width, dri2_surf->base.Height);
 433
 434          if (!dri2_surf->dri_buffers[attachments[i]])
 435             continue;
 436
 437          if (attachments[i] == __DRI_BUFFER_BACK_LEFT)
 438             dri2_process_back_buffer(dri2_surf, attachments[i+1]);
 439       }
 440
 441       memcpy(&dri2_surf->buffers[dri2_surf->buffer_count],
 442              dri2_surf->dri_buffers[attachments[i]],
 443              sizeof(__DRIbuffer));
 444
 445       dri2_surf->buffer_count++;
 446    }
 447
 448    assert(dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]);
 449
 450    *out_count = dri2_surf->buffer_count;
 451    if (dri2_surf->buffer_count == 0)
 452            return NULL;
 453
 454    *width = dri2_surf->base.Width;
 455    *height = dri2_surf->base.Height;
 456
 457    return dri2_surf->buffers;
 458 }
 459
 460 static __DRIbuffer *
 461 dri2_get_buffers(__DRIdrawable * driDrawable,
 462                  int *width, int *height,
 463                  unsigned int *attachments, int count,
 464                  int *out_count, void *loaderPrivate)
 465 {
 466    unsigned int *attachments_with_format;
 467    __DRIbuffer *buffer;
 468    const unsigned int format = 32;
 469    int i;
 470
 471    attachments_with_format = calloc(count * 2, sizeof(unsigned int));
 472    if (!attachments_with_format) {
 473       *out_count = 0;
 474       return NULL;
 475    }
 476
 477    for (i = 0; i < count; ++i) {
 478       attachments_with_format[2*i] = attachments[i];
 479       attachments_with_format[2*i + 1] = format;
 480    }
 481
 482    buffer =
 483       dri2_get_buffers_with_format(driDrawable,
 484                                    width, height,
 485                                    attachments_with_format, count,
 486                                    out_count, loaderPrivate);
 487
 488    free(attachments_with_format);
 489
 490    return buffer;
 491 }
 492
 493
 494 static void
 495 dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 496 {
 497    (void) driDrawable;
 498
 499    /* FIXME: Does EGL support front buffer rendering at all? */
 500
 501 #if 0
 502    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 503
 504    dri2WaitGL(dri2_surf);
 505 #else
 506    (void) loaderPrivate;
 507 #endif
 508 }
 509
 510 static void
 511 wayland_frame_callback(void *data, struct wl_callback *callback, uint32_t time)
 512 {
 513    struct dri2_egl_surface *dri2_surf = data;
 514
 515    dri2_surf->frame_callback = NULL;
 516    wl_callback_destroy(callback);
 517 }
 518
 519 static const struct wl_callback_listener frame_listener = {
 520         wayland_frame_callback
 521 };
 522
 523 /**
 524  * Called via eglSwapBuffers(), drv->API.SwapBuffers().
 525  */
 526 static EGLBoolean
 527 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 528 {
 529    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 530    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
 531    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
 532    int ret = 0;
 533
 534    while (dri2_surf->frame_callback && ret != -1)
 535       ret = wl_display_dispatch_queue(dri2_dpy->wl_dpy, dri2_dpy->wl_queue);
 536    if (ret < 0)
 537       return EGL_FALSE;
 538
 539    dri2_surf->frame_callback = wl_surface_frame(dri2_surf->wl_win->surface);
 540    wl_callback_add_listener(dri2_surf->frame_callback,
 541                             &frame_listener, dri2_surf);
 542    wl_proxy_set_queue((struct wl_proxy *) dri2_surf->frame_callback,
 543                       dri2_dpy->wl_queue);
 544
 545    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 546       pointer_swap(
 547             (const void **) &dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT],
 548             (const void **) &dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]);
 549
 550       dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT]->attachment =
 551          __DRI_BUFFER_FRONT_LEFT;
 552       dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]->attachment =
 553          __DRI_BUFFER_BACK_LEFT;
 554
 555       swap_wl_buffers(dri2_surf, WL_BUFFER_FRONT, WL_BUFFER_BACK);
 556
 557       if (!dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT])
 558          dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT] =
 559             wayland_create_buffer(dri2_surf,
 560                   dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT]);
 561
 562       wl_surface_attach(dri2_surf->wl_win->surface,
 563             dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT],
 564             dri2_surf->dx, dri2_surf->dy);
 565       dri2_surf->wl_buffer_lock[WL_BUFFER_FRONT] = 1;
 566
 567       dri2_surf->wl_win->attached_width  = dri2_surf->base.Width;
 568       dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
 569       /* reset resize growing parameters */
 570       dri2_surf->dx = 0;
 571       dri2_surf->dy = 0;
 572
 573       wl_surface_damage(dri2_surf->wl_win->surface, 0, 0,
 574             dri2_surf->base.Width, dri2_surf->base.Height);
 575
 576       wl_surface_commit(dri2_surf->wl_win->surface);
 577    }
 578
 579    _EGLContext *ctx;
 580    if (dri2_drv->glFlush) {
 581       ctx = _eglGetCurrentContext();
 582       if (ctx && ctx->DrawSurface == &dri2_surf->base)
 583          dri2_drv->glFlush();
 584    }
 585
 586    (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
 587    (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
 588
 589    return EGL_TRUE;
 590 }
 591
 592 static int
 593 dri2_wayland_authenticate(_EGLDisplay *disp, uint32_t id)
 594 {
 595    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 596    int ret = 0;
 597
 598    dri2_dpy->authenticated = 0;
 599
 600    wl_drm_authenticate(dri2_dpy->wl_drm, id);
 601    if (roundtrip(dri2_dpy) < 0)
 602       ret = -1;
 603
 604    if (!dri2_dpy->authenticated)
 605       ret = -1;
 606
 607    /* reset authenticated */
 608    dri2_dpy->authenticated = 1;
 609
 610    return ret;
 611 }
 612
 613 /**
 614  * Called via eglTerminate(), drv->API.Terminate().
 615  */
 616 static EGLBoolean
 617 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
 618 {
 619    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 620
 621    _eglReleaseDisplayResources(drv, disp);
 622    _eglCleanupDisplay(disp);
 623
 624    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
 625    close(dri2_dpy->fd);
 626    dlclose(dri2_dpy->driver);
 627    free(dri2_dpy->driver_name);
 628    free(dri2_dpy->device_name);
 629    wl_drm_destroy(dri2_dpy->wl_drm);
 630    if (dri2_dpy->own_device)
 631       wl_display_disconnect(dri2_dpy->wl_dpy);
 632    free(dri2_dpy);
 633    disp->DriverData = NULL;
 634
 635    return EGL_TRUE;
 636 }
 637
 638 static void
 639 drm_handle_device(void *data, struct wl_drm *drm, const char *device)
 640 {
 641    struct dri2_egl_display *dri2_dpy = data;
 642    drm_magic_t magic;
 643
 644    dri2_dpy->device_name = strdup(device);
 645    if (!dri2_dpy->device_name)
 646       return;
 647
 648 #ifdef O_CLOEXEC
 649    dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR | O_CLOEXEC);
 650    if (dri2_dpy->fd == -1 && errno == EINVAL)
 651 #endif
 652    {
 653       dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
 654       if (dri2_dpy->fd != -1)
 655          fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) |
 656             FD_CLOEXEC);
 657    }
 658    if (dri2_dpy->fd == -1) {
 659       _eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)",
 660               dri2_dpy->device_name, strerror(errno));
 661       return;
 662    }
 663
 664    drmGetMagic(dri2_dpy->fd, &magic);
 665    wl_drm_authenticate(dri2_dpy->wl_drm, magic);
 666 }
 667
 668 static void
 669 drm_handle_format(void *data, struct wl_drm *drm, uint32_t format)
 670 {
 671    struct dri2_egl_display *dri2_dpy = data;
 672
 673    switch (format) {
 674    case WL_DRM_FORMAT_ARGB8888:
 675       dri2_dpy->formats |= HAS_ARGB8888;
 676       break;
 677    case WL_DRM_FORMAT_XRGB8888:
 678       dri2_dpy->formats |= HAS_XRGB8888;
 679       break;
 680    }
 681 }
 682
 683 static void
 684 drm_handle_authenticated(void *data, struct wl_drm *drm)
 685 {
 686    struct dri2_egl_display *dri2_dpy = data;
 687
 688    dri2_dpy->authenticated = 1;
 689 }
 690
 691 static const struct wl_drm_listener drm_listener = {
 692         drm_handle_device,
 693         drm_handle_format,
 694         drm_handle_authenticated
 695 };
 696
 697 static void
 698 registry_handle_global(void *data, struct wl_registry *registry, uint32_t name,
 699                        const char *interface, uint32_t version)
 700 {
 701    struct dri2_egl_display *dri2_dpy = data;
 702
 703    if (strcmp(interface, "wl_drm") == 0) {
 704       dri2_dpy->wl_drm =
 705          wl_registry_bind(registry, name, &wl_drm_interface, 1);
 706       wl_drm_add_listener(dri2_dpy->wl_drm, &drm_listener, dri2_dpy);
 707    }
 708 }
 709
 710 static const struct wl_registry_listener registry_listener = {
 711         registry_handle_global
 712 };
 713
 714 EGLBoolean
 715 dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
 716 {
 717    struct dri2_egl_display *dri2_dpy;
 718    const __DRIconfig *config;
 719    uint32_t types;
 720    int i;
 721    static const unsigned int argb_masks[4] =
 722       { 0xff0000, 0xff00, 0xff, 0xff000000 };
 723    static const unsigned int rgb_masks[4] = { 0xff0000, 0xff00, 0xff, 0 };
 724
 725    drv->API.CreateWindowSurface = dri2_create_window_surface;
 726    drv->API.DestroySurface = dri2_destroy_surface;
 727    drv->API.SwapBuffers = dri2_swap_buffers;
 728    drv->API.Terminate = dri2_terminate;
 729
 730    dri2_dpy = calloc(1, sizeof *dri2_dpy);
 731    if (!dri2_dpy)
 732       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 733
 734    disp->DriverData = (void *) dri2_dpy;
 735    if (disp->PlatformDisplay == NULL) {
 736       dri2_dpy->wl_dpy = wl_display_connect(NULL);
 737       if (dri2_dpy->wl_dpy == NULL)
 738          goto cleanup_dpy;
 739       dri2_dpy->own_device = 1;
 740    } else {
 741       dri2_dpy->wl_dpy = disp->PlatformDisplay;
 742    }
 743
 744    dri2_dpy->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
 745    dri2_dpy->wl_registry = wl_display_get_registry(dri2_dpy->wl_dpy);
 746    wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_registry,
 747                       dri2_dpy->wl_queue);
 748    wl_registry_add_listener(dri2_dpy->wl_registry,
 749                             &registry_listener, dri2_dpy);
 750    if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_drm == NULL)
 751       goto cleanup_dpy;
 752
 753    if (roundtrip(dri2_dpy) < 0 || dri2_dpy->fd == -1)
 754       goto cleanup_drm;
 755
 756    if (roundtrip(dri2_dpy) < 0 || !dri2_dpy->authenticated)
 757       goto cleanup_fd;
 758
 759    dri2_dpy->driver_name = dri2_get_driver_for_fd(dri2_dpy->fd);
 760    if (dri2_dpy->driver_name == NULL) {
 761       _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
 762       goto cleanup_fd;
 763    }
 764
 765    if (!dri2_load_driver(disp))
 766       goto cleanup_driver_name;
 767
 768    dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
 769    dri2_dpy->dri2_loader_extension.base.version = 3;
 770    dri2_dpy->dri2_loader_extension.getBuffers = dri2_get_buffers;
 771    dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
 772    dri2_dpy->dri2_loader_extension.getBuffersWithFormat =
 773       dri2_get_buffers_with_format;
 774
 775    dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base;
 776    dri2_dpy->extensions[1] = &image_lookup_extension.base;
 777    dri2_dpy->extensions[2] = &use_invalidate.base;
 778    dri2_dpy->extensions[3] = NULL;
 779
 780    if (!dri2_create_screen(disp))
 781       goto cleanup_driver;
 782
 783    types = EGL_WINDOW_BIT;
 784    for (i = 0; dri2_dpy->driver_configs[i]; i++) {
 785       config = dri2_dpy->driver_configs[i];
 786       if (dri2_dpy->formats & HAS_XRGB8888)
 787          dri2_add_config(disp, config, i + 1, 0, types, NULL, rgb_masks);
 788       if (dri2_dpy->formats & HAS_ARGB8888)
 789          dri2_add_config(disp, config, i + 1, 0, types, NULL, argb_masks);
 790    }
 791
 792    disp->Extensions.WL_bind_wayland_display = EGL_TRUE;
 793    dri2_dpy->authenticate = dri2_wayland_authenticate;
 794
 795    /* we're supporting EGL 1.4 */
 796    disp->VersionMajor = 1;
 797    disp->VersionMinor = 4;
 798
 799    return EGL_TRUE;
 800
 801  cleanup_driver:
 802    dlclose(dri2_dpy->driver);
 803  cleanup_driver_name:
 804    free(dri2_dpy->driver_name);
 805  cleanup_fd:
 806    close(dri2_dpy->fd);
 807  cleanup_drm:
 808    free(dri2_dpy->device_name);
 809    wl_drm_destroy(dri2_dpy->wl_drm);
 810  cleanup_dpy:
 811    free(dri2_dpy);
 812
 813    return EGL_FALSE;
 814 }