src/vulkan/anv_wsi_wayland.c

   1 /*
   2  * Copyright © 2015 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, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include <wayland-client.h>
  25 #include <wayland-drm-client-protocol.h>
  26
  27 #include "anv_wsi.h"
  28
  29 #include <util/hash_table.h>
  30
  31 #define MIN_NUM_IMAGES 2
  32
  33 struct wsi_wl_display {
  34    struct wl_display *                          display;
  35    struct wl_drm *                              drm;
  36
  37    /* Vector of VkFormats supported */
  38    struct anv_vector                            formats;
  39
  40    uint32_t                                     capabilities;
  41 };
  42
  43 struct wsi_wayland {
  44    struct anv_wsi_implementation                base;
  45
  46    struct anv_instance *                        instance;
  47
  48     pthread_mutex_t                             mutex;
  49     /* Hash table of wl_display -> wsi_wl_display mappings */
  50     struct hash_table *                         displays;
  51 };
  52
  53 static void
  54 wsi_wl_display_add_vk_format(struct wsi_wl_display *display, VkFormat format)
  55 {
  56    /* Don't add a format that's already in the list */
  57    VkFormat *f;
  58    anv_vector_foreach(f, &display->formats)
  59       if (*f == format)
  60          return;
  61
  62    /* Don't add formats which aren't supported by the driver */
  63    if (anv_format_for_vk_format(format)->cpp == 0)
  64       return;
  65
  66    f = anv_vector_add(&display->formats);
  67    if (f)
  68       *f = format;
  69 }
  70
  71 static void
  72 drm_handle_device(void *data, struct wl_drm *drm, const char *name)
  73 {
  74    fprintf(stderr, "wl_drm.device(%s)\n", name);
  75 }
  76
  77 static uint32_t
  78 wl_drm_format_for_vk_format(VkFormat vk_format, bool alpha)
  79 {
  80    switch (vk_format) {
  81    case VK_FORMAT_R4G4B4A4_UNORM:
  82       return alpha ? WL_DRM_FORMAT_ABGR4444 : WL_DRM_FORMAT_XBGR4444;
  83    case VK_FORMAT_R5G6B5_UNORM:
  84       return WL_DRM_FORMAT_BGR565;
  85    case VK_FORMAT_R5G5B5A1_UNORM:
  86       return alpha ? WL_DRM_FORMAT_ABGR1555 : WL_DRM_FORMAT_XBGR1555;
  87    case VK_FORMAT_R8G8B8_UNORM:
  88       return WL_DRM_FORMAT_XBGR8888;
  89    case VK_FORMAT_R8G8B8A8_UNORM:
  90       return alpha ? WL_DRM_FORMAT_ABGR8888 : WL_DRM_FORMAT_XBGR8888;
  91    case VK_FORMAT_R10G10B10A2_UNORM:
  92       return alpha ? WL_DRM_FORMAT_ABGR2101010 : WL_DRM_FORMAT_XBGR2101010;
  93    case VK_FORMAT_B4G4R4A4_UNORM:
  94       return alpha ? WL_DRM_FORMAT_ARGB4444 : WL_DRM_FORMAT_XRGB4444;
  95    case VK_FORMAT_B5G6R5_UNORM:
  96       return WL_DRM_FORMAT_RGB565;
  97    case VK_FORMAT_B5G5R5A1_UNORM:
  98       return alpha ? WL_DRM_FORMAT_XRGB1555 : WL_DRM_FORMAT_XRGB1555;
  99    case VK_FORMAT_B8G8R8_UNORM:
 100       return WL_DRM_FORMAT_BGRX8888;
 101    case VK_FORMAT_B8G8R8A8_UNORM:
 102       return alpha ? WL_DRM_FORMAT_ARGB8888 : WL_DRM_FORMAT_XRGB8888;
 103    case VK_FORMAT_B10G10R10A2_UNORM:
 104       return alpha ? WL_DRM_FORMAT_ARGB2101010 : WL_DRM_FORMAT_XRGB2101010;
 105
 106    default:
 107       assert("!Unsupported Vulkan format");
 108       return 0;
 109    }
 110 }
 111
 112 static void
 113 drm_handle_format(void *data, struct wl_drm *drm, uint32_t wl_format)
 114 {
 115    struct wsi_wl_display *display = data;
 116
 117    switch (wl_format) {
 118    case WL_DRM_FORMAT_ABGR4444:
 119    case WL_DRM_FORMAT_XBGR4444:
 120       wsi_wl_display_add_vk_format(display, VK_FORMAT_R4G4B4A4_UNORM);
 121       break;
 122    case WL_DRM_FORMAT_BGR565:
 123       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G6B5_UNORM);
 124       break;
 125    case WL_DRM_FORMAT_ABGR1555:
 126    case WL_DRM_FORMAT_XBGR1555:
 127       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G5B5A1_UNORM);
 128       break;
 129    case WL_DRM_FORMAT_XBGR8888:
 130       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8_UNORM);
 131       /* fallthrough */
 132    case WL_DRM_FORMAT_ABGR8888:
 133       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8A8_UNORM);
 134       break;
 135    case WL_DRM_FORMAT_ABGR2101010:
 136    case WL_DRM_FORMAT_XBGR2101010:
 137       wsi_wl_display_add_vk_format(display, VK_FORMAT_R10G10B10A2_UNORM);
 138       break;
 139    case WL_DRM_FORMAT_ARGB4444:
 140    case WL_DRM_FORMAT_XRGB4444:
 141       wsi_wl_display_add_vk_format(display, VK_FORMAT_B4G4R4A4_UNORM);
 142       break;
 143    case WL_DRM_FORMAT_RGB565:
 144       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G6R5_UNORM);
 145       break;
 146    case WL_DRM_FORMAT_ARGB1555:
 147    case WL_DRM_FORMAT_XRGB1555:
 148       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G5R5A1_UNORM);
 149       break;
 150    case WL_DRM_FORMAT_XRGB8888:
 151       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8_UNORM);
 152       /* fallthrough */
 153    case WL_DRM_FORMAT_ARGB8888:
 154       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_UNORM);
 155       break;
 156    case WL_DRM_FORMAT_ARGB2101010:
 157    case WL_DRM_FORMAT_XRGB2101010:
 158       wsi_wl_display_add_vk_format(display, VK_FORMAT_B10G10R10A2_UNORM);
 159       break;
 160    }
 161 }
 162
 163 static void
 164 drm_handle_authenticated(void *data, struct wl_drm *drm)
 165 {
 166 }
 167
 168 static void
 169 drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t capabilities)
 170 {
 171    struct wsi_wl_display *display = data;
 172
 173    display->capabilities = capabilities;
 174 }
 175
 176 static const struct wl_drm_listener drm_listener = {
 177    drm_handle_device,
 178    drm_handle_format,
 179    drm_handle_authenticated,
 180    drm_handle_capabilities,
 181 };
 182
 183 static void
 184 registry_handle_global(void *data, struct wl_registry *registry,
 185                        uint32_t name, const char *interface, uint32_t version)
 186 {
 187    struct wsi_wl_display *display = data;
 188
 189    if (strcmp(interface, "wl_drm") == 0) {
 190       assert(display->drm == NULL);
 191
 192       assert(version >= 2);
 193       display->drm = wl_registry_bind(registry, name, &wl_drm_interface, 2);
 194
 195       if (display->drm)
 196          wl_drm_add_listener(display->drm, &drm_listener, display);
 197    }
 198 }
 199
 200 static void
 201 registry_handle_global_remove(void *data, struct wl_registry *registry,
 202                               uint32_t name)
 203 { /* No-op */ }
 204
 205 static const struct wl_registry_listener registry_listener = {
 206    registry_handle_global,
 207    registry_handle_global_remove
 208 };
 209
 210 static void
 211 wsi_wl_display_destroy(struct wsi_wayland *wsi, struct wsi_wl_display *display)
 212 {
 213    anv_vector_finish(&display->formats);
 214    if (display->drm)
 215       wl_drm_destroy(display->drm);
 216    anv_instance_free(wsi->instance, display);
 217 }
 218
 219 static struct wsi_wl_display *
 220 wsi_wl_display_create(struct wsi_wayland *wsi, struct wl_display *wl_display)
 221 {
 222    struct wsi_wl_display *display =
 223       anv_instance_alloc(wsi->instance, sizeof(*display), 8,
 224                          VK_SYSTEM_ALLOC_TYPE_INTERNAL);
 225    if (!display)
 226       return NULL;
 227
 228    memset(display, 0, sizeof(*display));
 229
 230    display->display = wl_display;
 231
 232    if (!anv_vector_init(&display->formats, sizeof(VkFormat), 8))
 233       goto fail;
 234
 235    struct wl_registry *registry = wl_display_get_registry(wl_display);
 236    if (!registry)
 237       return NULL;
 238
 239    wl_registry_add_listener(registry, &registry_listener, display);
 240
 241    /* Round-rip to get the wl_drm global */
 242    wl_display_roundtrip(wl_display);
 243
 244    if (!display->drm)
 245       goto fail;
 246
 247    /* Round-rip to get wl_drm formats and capabilities */
 248    wl_display_roundtrip(wl_display);
 249
 250    /* We need prime support */
 251    if (!(display->capabilities & WL_DRM_CAPABILITY_PRIME))
 252       goto fail;
 253
 254    /* We don't need this anymore */
 255    wl_registry_destroy(registry);
 256
 257    return display;
 258
 259 fail:
 260    if (registry)
 261       wl_registry_destroy(registry);
 262
 263    wsi_wl_display_destroy(wsi, display);
 264    return NULL;
 265 }
 266
 267 static struct wsi_wl_display *
 268 wsi_wl_get_display(struct wsi_wayland *wsi, struct wl_display *wl_display)
 269 {
 270    pthread_mutex_lock(&wsi->mutex);
 271
 272    struct hash_entry *entry = _mesa_hash_table_search(wsi->displays,
 273                                                       wl_display);
 274    if (!entry) {
 275       /* We're about to make a bunch of blocking calls.  Let's drop the
 276        * mutex for now so we don't block up too badly.
 277        */
 278       pthread_mutex_unlock(&wsi->mutex);
 279
 280       struct wsi_wl_display *display = wsi_wl_display_create(wsi, wl_display);
 281
 282       pthread_mutex_lock(&wsi->mutex);
 283
 284       entry = _mesa_hash_table_search(wsi->displays, wl_display);
 285       if (entry) {
 286          /* Oops, someone raced us to it */
 287          wsi_wl_display_destroy(wsi, display);
 288       } else {
 289          entry = _mesa_hash_table_insert(wsi->displays, wl_display, display);
 290       }
 291    }
 292
 293    pthread_mutex_unlock(&wsi->mutex);
 294
 295    return entry->data;
 296 }
 297
 298 static VkResult
 299 wsi_wl_get_window_supported(struct anv_wsi_implementation *impl,
 300                             struct anv_physical_device *physical_device,
 301                             const VkSurfaceDescriptionWindowWSI *window,
 302                             VkBool32 *pSupported)
 303 {
 304    struct wsi_wayland *wsi = (struct wsi_wayland *)impl;
 305
 306    *pSupported = wsi_wl_get_display(wsi, window->pPlatformHandle) != NULL;
 307
 308    return VK_SUCCESS;
 309 }
 310
 311 static const VkSurfacePresentModePropertiesWSI present_modes[] = {
 312    { VK_PRESENT_MODE_MAILBOX_WSI },
 313    { VK_PRESENT_MODE_FIFO_WSI },
 314 };
 315
 316 static VkResult
 317 wsi_wl_get_surface_info(struct anv_wsi_implementation *impl,
 318                         struct anv_device *device,
 319                         VkSurfaceDescriptionWindowWSI *window,
 320                         VkSurfaceInfoTypeWSI infoType,
 321                         size_t* pDataSize, void* pData)
 322 {
 323    struct wsi_wayland *wsi = (struct wsi_wayland *)impl;
 324
 325    if (pDataSize == NULL)
 326       return vk_error(VK_ERROR_INVALID_POINTER);
 327
 328    switch (infoType) {
 329    case VK_SURFACE_INFO_TYPE_PROPERTIES_WSI: {
 330       assert(*pDataSize >= sizeof(VkSurfacePropertiesWSI));
 331       VkSurfacePropertiesWSI *props = pData;
 332
 333       props->minImageCount = MIN_NUM_IMAGES;
 334       props->maxImageCount = 4;
 335       props->currentExtent = (VkExtent2D) { -1, -1 };
 336       props->minImageExtent = (VkExtent2D) { 1, 1 };
 337       props->maxImageExtent = (VkExtent2D) { INT16_MAX, INT16_MAX };
 338       props->supportedTransforms = VK_SURFACE_TRANSFORM_NONE_BIT_WSI;
 339       props->currentTransform = VK_SURFACE_TRANSFORM_NONE_WSI;
 340       props->maxImageArraySize = 1;
 341       props->supportedUsageFlags =
 342          VK_IMAGE_USAGE_TRANSFER_DESTINATION_BIT |
 343          VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 344
 345       return VK_SUCCESS;
 346    }
 347
 348    case VK_SURFACE_INFO_TYPE_FORMATS_WSI: {
 349       VkSurfaceFormatPropertiesWSI *formats = pData;
 350
 351       struct wsi_wl_display *display =
 352          wsi_wl_get_display(wsi, window->pPlatformHandle);
 353
 354       uint32_t size = anv_vector_length(&display->formats) * sizeof(*formats);
 355
 356       if (pData == NULL) {
 357          *pDataSize = size;
 358          return VK_SUCCESS;
 359       }
 360
 361       assert(*pDataSize >= size);
 362       *pDataSize = size;
 363
 364       VkFormat *f;
 365       anv_vector_foreach(f, &display->formats)
 366          (formats++)->format = *f;
 367
 368       return VK_SUCCESS;
 369    }
 370
 371    case VK_SURFACE_INFO_TYPE_PRESENT_MODES_WSI:
 372       if (pData == NULL) {
 373          *pDataSize = sizeof(present_modes);
 374          return VK_SUCCESS;
 375       }
 376
 377       assert(*pDataSize >= sizeof(present_modes));
 378       memcpy(pData, present_modes, *pDataSize);
 379
 380       return VK_SUCCESS;
 381    default:
 382       return vk_error(VK_ERROR_INVALID_VALUE);
 383    }
 384 }
 385
 386 struct wsi_wl_image {
 387    struct anv_image *                           image;
 388    struct anv_device_memory *                   memory;
 389    struct wl_buffer *                           buffer;
 390    bool                                         busy;
 391 };
 392
 393 struct wsi_wl_swap_chain {
 394    struct anv_swap_chain                        base;
 395
 396    struct wsi_wl_display *                      display;
 397    struct wl_event_queue *                      queue;
 398    struct wl_surface *                          surface;
 399
 400    VkExtent2D                                   extent;
 401    VkFormat                                     vk_format;
 402    uint32_t                                     drm_format;
 403
 404    VkPresentModeWSI                             present_mode;
 405    bool                                         fifo_ready;
 406
 407    uint32_t                                     image_count;
 408    struct wsi_wl_image                          images[0];
 409 };
 410
 411 static VkResult
 412 wsi_wl_get_swap_chain_info(struct anv_swap_chain *anv_chain,
 413                            VkSwapChainInfoTypeWSI infoType,
 414                            size_t* pDataSize, void* pData)
 415 {
 416    struct wsi_wl_swap_chain *chain = (struct wsi_wl_swap_chain *)anv_chain;
 417    size_t size;
 418
 419    switch (infoType) {
 420    case VK_SWAP_CHAIN_INFO_TYPE_IMAGES_WSI: {
 421       VkSwapChainImagePropertiesWSI *images = pData;
 422
 423       size = chain->image_count * sizeof(*images);
 424
 425       if (pData == NULL) {
 426          *pDataSize = size;
 427          return VK_SUCCESS;
 428       }
 429
 430       assert(size <= *pDataSize);
 431       for (uint32_t i = 0; i < chain->image_count; i++)
 432          images[i].image = anv_image_to_handle(chain->images[i].image);
 433
 434       *pDataSize = size;
 435
 436       return VK_SUCCESS;
 437    }
 438
 439    default:
 440       return vk_error(VK_ERROR_INVALID_VALUE);
 441    }
 442 }
 443
 444 static VkResult
 445 wsi_wl_acquire_next_image(struct anv_swap_chain *anv_chain,
 446                           uint64_t timeout,
 447                           VkSemaphore semaphore,
 448                           uint32_t *image_index)
 449 {
 450    struct wsi_wl_swap_chain *chain = (struct wsi_wl_swap_chain *)anv_chain;
 451
 452    int ret = wl_display_dispatch_queue_pending(chain->display->display,
 453                                                chain->queue);
 454    /* XXX: I'm not sure if out-of-date is the right error here.  If
 455     * wl_display_dispatch_queue_pending fails it most likely means we got
 456     * kicked by the server so this seems more-or-less correct.
 457     */
 458    if (ret < 0)
 459       return vk_error(VK_ERROR_OUT_OF_DATE_WSI);
 460
 461    while (1) {
 462       for (uint32_t i = 0; i < chain->image_count; i++) {
 463          if (!chain->images[i].busy) {
 464             /* We found a non-busy image */
 465             *image_index = i;
 466             return VK_SUCCESS;
 467          }
 468       }
 469
 470       /* This time we do a blocking dispatch because we can't go
 471        * anywhere until we get an event.
 472        */
 473       int ret = wl_display_dispatch_queue(chain->display->display,
 474                                           chain->queue);
 475       if (ret < 0)
 476          return vk_error(VK_ERROR_OUT_OF_DATE_WSI);
 477    }
 478 }
 479
 480 static void
 481 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 482 {
 483    struct wsi_wl_swap_chain *chain = data;
 484
 485    chain->fifo_ready = true;
 486
 487    wl_callback_destroy(callback);
 488 }
 489
 490 static const struct wl_callback_listener frame_listener = {
 491    frame_handle_done,
 492 };
 493
 494 static VkResult
 495 wsi_wl_queue_present(struct anv_swap_chain *anv_chain,
 496                      struct anv_queue *queue,
 497                      uint32_t image_index)
 498 {
 499    struct wsi_wl_swap_chain *chain = (struct wsi_wl_swap_chain *)anv_chain;
 500
 501    if (chain->present_mode == VK_PRESENT_MODE_FIFO_WSI) {
 502       while (!chain->fifo_ready) {
 503          int ret = wl_display_dispatch_queue(chain->display->display,
 504                                              chain->queue);
 505          if (ret < 0)
 506             return vk_error(VK_ERROR_OUT_OF_DATE_WSI);
 507       }
 508    }
 509
 510    assert(image_index < chain->image_count);
 511    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 512    wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 513    wl_surface_commit(chain->surface);
 514
 515    if (chain->present_mode == VK_PRESENT_MODE_FIFO_WSI) {
 516       struct wl_callback *frame = wl_surface_frame(chain->surface);
 517       wl_proxy_set_queue((struct wl_proxy *)frame, chain->queue);
 518       wl_callback_add_listener(frame, &frame_listener, chain);
 519    }
 520
 521    return VK_SUCCESS;
 522 }
 523
 524 static void
 525 wsi_wl_image_finish(struct wsi_wl_swap_chain *chain, struct wsi_wl_image *image)
 526 {
 527    VkDevice vk_device = anv_device_to_handle(chain->base.device);
 528    anv_FreeMemory(vk_device, anv_device_memory_to_handle(image->memory));
 529    anv_DestroyImage(vk_device, anv_image_to_handle(image->image));
 530 }
 531
 532 static void
 533 buffer_handle_release(void *data, struct wl_buffer *buffer)
 534 {
 535    struct wsi_wl_image *image = data;
 536
 537    assert(image->buffer == buffer);
 538
 539    image->busy = false;
 540 }
 541
 542 static const struct wl_buffer_listener buffer_listener = {
 543    buffer_handle_release,
 544 };
 545
 546 static VkResult
 547 wsi_wl_image_init(struct wsi_wl_swap_chain *chain, struct wsi_wl_image *image)
 548 {
 549    VkDevice vk_device = anv_device_to_handle(chain->base.device);
 550    VkResult result;
 551
 552    VkImage vk_image;
 553    result = anv_image_create(vk_device,
 554       &(struct anv_image_create_info) {
 555          .force_tile_mode = true,
 556          .tile_mode = XMAJOR,
 557          .stride = 0,
 558          .vk_info =
 559       &(VkImageCreateInfo) {
 560          .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
 561          .imageType = VK_IMAGE_TYPE_2D,
 562          .format = chain->vk_format,
 563          .extent = {
 564             .width = chain->extent.width,
 565             .height = chain->extent.height,
 566             .depth = 1
 567          },
 568          .mipLevels = 1,
 569          .arraySize = 1,
 570          .samples = 1,
 571          /* FIXME: Need a way to use X tiling to allow scanout */
 572          .tiling = VK_IMAGE_TILING_OPTIMAL,
 573          .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
 574          .flags = 0,
 575       }},
 576       &vk_image);
 577
 578    if (result != VK_SUCCESS)
 579       return result;
 580
 581    image->image = anv_image_from_handle(vk_image);
 582    assert(anv_format_is_color(image->image->format));
 583
 584    struct anv_surface *surface = &image->image->color_surface;
 585
 586    VkDeviceMemory vk_memory;
 587    result = anv_AllocMemory(vk_device,
 588       &(VkMemoryAllocInfo) {
 589          .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOC_INFO,
 590          .allocationSize = image->image->size,
 591          .memoryTypeIndex = 0,
 592       },
 593       &vk_memory);
 594
 595    if (result != VK_SUCCESS)
 596       goto fail_image;
 597
 598    image->memory = anv_device_memory_from_handle(vk_memory);
 599
 600    result = anv_BindImageMemory(vk_device, vk_image, vk_memory, 0);
 601
 602    if (result != VK_SUCCESS)
 603       goto fail_mem;
 604
 605    int ret = anv_gem_set_tiling(chain->base.device,
 606                                 image->memory->bo.gem_handle,
 607                                 surface->stride, I915_TILING_X);
 608    if (ret) {
 609       result = vk_error(VK_ERROR_UNKNOWN);
 610       goto fail_mem;
 611    }
 612
 613    int fd = anv_gem_handle_to_fd(chain->base.device,
 614                                  image->memory->bo.gem_handle);
 615    if (fd == -1) {
 616       result = vk_error(VK_ERROR_UNKNOWN);
 617       goto fail_mem;
 618    }
 619
 620    image->buffer = wl_drm_create_prime_buffer(chain->display->drm,
 621                                               fd, /* name */
 622                                               chain->extent.width,
 623                                               chain->extent.height,
 624                                               chain->drm_format,
 625                                               surface->offset,
 626                                               surface->stride,
 627                                               0, 0, 0, 0 /* unused */);
 628    wl_display_roundtrip(chain->display->display);
 629    close(fd);
 630
 631    wl_proxy_set_queue((struct wl_proxy *)image->buffer, chain->queue);
 632    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 633
 634    return VK_SUCCESS;
 635
 636 fail_mem:
 637    anv_FreeMemory(vk_device, vk_memory);
 638 fail_image:
 639    anv_DestroyImage(vk_device, vk_image);
 640
 641    return result;
 642 }
 643
 644 static VkResult
 645 wsi_wl_destroy_swap_chain(struct anv_swap_chain *anv_chain)
 646 {
 647    struct wsi_wl_swap_chain *chain = (struct wsi_wl_swap_chain *)anv_chain;
 648
 649    for (uint32_t i = 0; i < chain->image_count; i++) {
 650       if (chain->images[i].buffer)
 651          wsi_wl_image_finish(chain, &chain->images[i]);
 652    }
 653
 654    anv_device_free(chain->base.device, chain);
 655
 656    return VK_SUCCESS;
 657 }
 658
 659 static VkResult
 660 wsi_wl_create_swap_chain(struct anv_wsi_implementation *impl,
 661                          struct anv_device *device,
 662                          const VkSwapChainCreateInfoWSI *pCreateInfo,
 663                          struct anv_swap_chain **swap_chain_out)
 664 {
 665    struct wsi_wayland *wsi = (struct wsi_wayland *)impl;
 666    struct wsi_wl_swap_chain *chain;
 667    VkResult result;
 668
 669    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAP_CHAIN_CREATE_INFO_WSI);
 670
 671    assert(pCreateInfo->pSurfaceDescription->sType ==
 672           VK_STRUCTURE_TYPE_SURFACE_DESCRIPTION_WINDOW_WSI);
 673    VkSurfaceDescriptionWindowWSI *vk_window =
 674       (VkSurfaceDescriptionWindowWSI *)pCreateInfo->pSurfaceDescription;
 675    assert(vk_window->platform == VK_PLATFORM_WAYLAND_WSI);
 676
 677    int num_images = pCreateInfo->minImageCount;
 678
 679    assert(num_images >= MIN_NUM_IMAGES);
 680
 681    /* For true mailbox mode, we need at least 4 images:
 682     *  1) One to scan out from
 683     *  2) One to have queued for scan-out
 684     *  3) One to be currently held by the Wayland compositor
 685     *  4) One to render to
 686     */
 687    if (pCreateInfo->presentMode == VK_PRESENT_MODE_MAILBOX_WSI)
 688       num_images = MAX2(num_images, 4);
 689
 690    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 691    chain = anv_device_alloc(device, size, 8,
 692                             VK_SYSTEM_ALLOC_TYPE_API_OBJECT);
 693    if (chain == NULL)
 694       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 695
 696    chain->base.device = device;
 697    chain->base.destroy = wsi_wl_destroy_swap_chain;
 698    chain->base.get_swap_chain_info = wsi_wl_get_swap_chain_info;
 699    chain->base.acquire_next_image = wsi_wl_acquire_next_image;
 700    chain->base.queue_present = wsi_wl_queue_present;
 701
 702    chain->surface = vk_window->pPlatformWindow;
 703    chain->extent = pCreateInfo->imageExtent;
 704    chain->vk_format = pCreateInfo->imageFormat;
 705    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, false);
 706
 707    chain->present_mode = pCreateInfo->presentMode;
 708    chain->fifo_ready = true;
 709
 710    chain->image_count = num_images;
 711
 712    /* Mark a bunch of stuff as NULL.  This way we can just call
 713     * destroy_swapchain for cleanup.
 714     */
 715    for (uint32_t i = 0; i < chain->image_count; i++)
 716       chain->images[i].buffer = NULL;
 717    chain->queue = NULL;
 718
 719    chain->display = wsi_wl_get_display(wsi, vk_window->pPlatformHandle);
 720    if (!chain->display)
 721       goto fail;
 722
 723    chain->queue = wl_display_create_queue(chain->display->display);
 724    if (!chain->queue)
 725       goto fail;
 726
 727    for (uint32_t i = 0; i < chain->image_count; i++) {
 728       result = wsi_wl_image_init(chain, &chain->images[i]);
 729       if (result != VK_SUCCESS)
 730          goto fail;
 731       chain->images[i].busy = false;
 732    }
 733
 734    *swap_chain_out = &chain->base;
 735
 736    return VK_SUCCESS;
 737
 738 fail:
 739    wsi_wl_destroy_swap_chain(&chain->base);
 740
 741    return result;
 742 }
 743
 744 VkResult
 745 anv_wl_init_wsi(struct anv_instance *instance)
 746 {
 747    struct wsi_wayland *wsi;
 748    VkResult result;
 749
 750    wsi = anv_instance_alloc(instance, sizeof(*wsi), 8,
 751                             VK_SYSTEM_ALLOC_TYPE_INTERNAL);
 752    if (!wsi)
 753       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 754
 755    wsi->base.get_window_supported = wsi_wl_get_window_supported;
 756    wsi->base.get_surface_info = wsi_wl_get_surface_info;
 757    wsi->base.create_swap_chain = wsi_wl_create_swap_chain;
 758
 759    wsi->instance = instance;
 760
 761    int ret = pthread_mutex_init(&wsi->mutex, NULL);
 762    if (ret != 0) {
 763       result = (ret == ENOMEM) ? VK_ERROR_OUT_OF_HOST_MEMORY :
 764                                  VK_ERROR_UNKNOWN;
 765       goto fail_alloc;
 766    }
 767
 768    wsi->displays = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
 769                                            _mesa_key_pointer_equal);
 770    if (!wsi->displays) {
 771       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 772       goto fail_mutex;
 773    }
 774
 775    instance->wsi_impl[VK_PLATFORM_WAYLAND_WSI] = &wsi->base;
 776
 777    return VK_SUCCESS;
 778
 779 fail_mutex:
 780    pthread_mutex_destroy(&wsi->mutex);
 781
 782 fail_alloc:
 783    anv_instance_free(instance, wsi);
 784
 785    return result;
 786 }
 787
 788 void
 789 anv_wl_finish_wsi(struct anv_instance *instance)
 790 {
 791    struct wsi_wayland *wsi =
 792       (struct wsi_wayland *)instance->wsi_impl[VK_PLATFORM_WAYLAND_WSI];
 793
 794    _mesa_hash_table_destroy(wsi->displays, NULL);
 795
 796    pthread_mutex_destroy(&wsi->mutex);
 797
 798    anv_instance_free(instance, wsi);
 799 }