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)->surface_format ==
  64        ISL_FORMAT_UNSUPPORTED) {
  65       return;
  66    }
  67
  68    f = anv_vector_add(&display->formats);
  69    if (f)
  70       *f = format;
  71 }
  72
  73 static void
  74 drm_handle_device(void *data, struct wl_drm *drm, const char *name)
  75 {
  76    fprintf(stderr, "wl_drm.device(%s)\n", name);
  77 }
  78
  79 static uint32_t
  80 wl_drm_format_for_vk_format(VkFormat vk_format, bool alpha)
  81 {
  82    switch (vk_format) {
  83    /* TODO: Figure out what all the formats mean and make this table
  84     * correct.
  85     */
  86 #if 0
  87    case VK_FORMAT_R4G4B4A4_UNORM:
  88       return alpha ? WL_DRM_FORMAT_ABGR4444 : WL_DRM_FORMAT_XBGR4444;
  89    case VK_FORMAT_R5G6B5_UNORM:
  90       return WL_DRM_FORMAT_BGR565;
  91    case VK_FORMAT_R5G5B5A1_UNORM:
  92       return alpha ? WL_DRM_FORMAT_ABGR1555 : WL_DRM_FORMAT_XBGR1555;
  93    case VK_FORMAT_R8G8B8_UNORM:
  94       return WL_DRM_FORMAT_XBGR8888;
  95    case VK_FORMAT_R8G8B8A8_UNORM:
  96       return alpha ? WL_DRM_FORMAT_ABGR8888 : WL_DRM_FORMAT_XBGR8888;
  97    case VK_FORMAT_R10G10B10A2_UNORM:
  98       return alpha ? WL_DRM_FORMAT_ABGR2101010 : WL_DRM_FORMAT_XBGR2101010;
  99    case VK_FORMAT_B4G4R4A4_UNORM:
 100       return alpha ? WL_DRM_FORMAT_ARGB4444 : WL_DRM_FORMAT_XRGB4444;
 101    case VK_FORMAT_B5G6R5_UNORM:
 102       return WL_DRM_FORMAT_RGB565;
 103    case VK_FORMAT_B5G5R5A1_UNORM:
 104       return alpha ? WL_DRM_FORMAT_XRGB1555 : WL_DRM_FORMAT_XRGB1555;
 105 #endif
 106    case VK_FORMAT_B8G8R8_UNORM:
 107       return WL_DRM_FORMAT_BGRX8888;
 108    case VK_FORMAT_B8G8R8A8_UNORM:
 109       return alpha ? WL_DRM_FORMAT_ARGB8888 : WL_DRM_FORMAT_XRGB8888;
 110 #if 0
 111    case VK_FORMAT_B10G10R10A2_UNORM:
 112       return alpha ? WL_DRM_FORMAT_ARGB2101010 : WL_DRM_FORMAT_XRGB2101010;
 113 #endif
 114
 115    default:
 116       assert("!Unsupported Vulkan format");
 117       return 0;
 118    }
 119 }
 120
 121 static void
 122 drm_handle_format(void *data, struct wl_drm *drm, uint32_t wl_format)
 123 {
 124    struct wsi_wl_display *display = data;
 125
 126    switch (wl_format) {
 127 #if 0
 128    case WL_DRM_FORMAT_ABGR4444:
 129    case WL_DRM_FORMAT_XBGR4444:
 130       wsi_wl_display_add_vk_format(display, VK_FORMAT_R4G4B4A4_UNORM);
 131       break;
 132    case WL_DRM_FORMAT_BGR565:
 133       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G6B5_UNORM);
 134       break;
 135    case WL_DRM_FORMAT_ABGR1555:
 136    case WL_DRM_FORMAT_XBGR1555:
 137       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G5B5A1_UNORM);
 138       break;
 139    case WL_DRM_FORMAT_XBGR8888:
 140       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8_UNORM);
 141       /* fallthrough */
 142    case WL_DRM_FORMAT_ABGR8888:
 143       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8A8_UNORM);
 144       break;
 145    case WL_DRM_FORMAT_ABGR2101010:
 146    case WL_DRM_FORMAT_XBGR2101010:
 147       wsi_wl_display_add_vk_format(display, VK_FORMAT_R10G10B10A2_UNORM);
 148       break;
 149    case WL_DRM_FORMAT_ARGB4444:
 150    case WL_DRM_FORMAT_XRGB4444:
 151       wsi_wl_display_add_vk_format(display, VK_FORMAT_B4G4R4A4_UNORM);
 152       break;
 153    case WL_DRM_FORMAT_RGB565:
 154       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G6R5_UNORM);
 155       break;
 156    case WL_DRM_FORMAT_ARGB1555:
 157    case WL_DRM_FORMAT_XRGB1555:
 158       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G5R5A1_UNORM);
 159       break;
 160 #endif
 161    case WL_DRM_FORMAT_XRGB8888:
 162       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8_UNORM);
 163       /* fallthrough */
 164    case WL_DRM_FORMAT_ARGB8888:
 165       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_UNORM);
 166       break;
 167 #if 0
 168    case WL_DRM_FORMAT_ARGB2101010:
 169    case WL_DRM_FORMAT_XRGB2101010:
 170       wsi_wl_display_add_vk_format(display, VK_FORMAT_B10G10R10A2_UNORM);
 171       break;
 172 #endif
 173    }
 174 }
 175
 176 static void
 177 drm_handle_authenticated(void *data, struct wl_drm *drm)
 178 {
 179 }
 180
 181 static void
 182 drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t capabilities)
 183 {
 184    struct wsi_wl_display *display = data;
 185
 186    display->capabilities = capabilities;
 187 }
 188
 189 static const struct wl_drm_listener drm_listener = {
 190    drm_handle_device,
 191    drm_handle_format,
 192    drm_handle_authenticated,
 193    drm_handle_capabilities,
 194 };
 195
 196 static void
 197 registry_handle_global(void *data, struct wl_registry *registry,
 198                        uint32_t name, const char *interface, uint32_t version)
 199 {
 200    struct wsi_wl_display *display = data;
 201
 202    if (strcmp(interface, "wl_drm") == 0) {
 203       assert(display->drm == NULL);
 204
 205       assert(version >= 2);
 206       display->drm = wl_registry_bind(registry, name, &wl_drm_interface, 2);
 207
 208       if (display->drm)
 209          wl_drm_add_listener(display->drm, &drm_listener, display);
 210    }
 211 }
 212
 213 static void
 214 registry_handle_global_remove(void *data, struct wl_registry *registry,
 215                               uint32_t name)
 216 { /* No-op */ }
 217
 218 static const struct wl_registry_listener registry_listener = {
 219    registry_handle_global,
 220    registry_handle_global_remove
 221 };
 222
 223 static void
 224 wsi_wl_display_destroy(struct wsi_wayland *wsi, struct wsi_wl_display *display)
 225 {
 226    anv_vector_finish(&display->formats);
 227    if (display->drm)
 228       wl_drm_destroy(display->drm);
 229    anv_free(&wsi->instance->alloc, display);
 230 }
 231
 232 static struct wsi_wl_display *
 233 wsi_wl_display_create(struct wsi_wayland *wsi, struct wl_display *wl_display)
 234 {
 235    struct wsi_wl_display *display =
 236       anv_alloc(&wsi->instance->alloc, sizeof(*display), 8,
 237                 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 238    if (!display)
 239       return NULL;
 240
 241    memset(display, 0, sizeof(*display));
 242
 243    display->display = wl_display;
 244
 245    if (!anv_vector_init(&display->formats, sizeof(VkFormat), 8))
 246       goto fail;
 247
 248    struct wl_registry *registry = wl_display_get_registry(wl_display);
 249    if (!registry)
 250       return NULL;
 251
 252    wl_registry_add_listener(registry, &registry_listener, display);
 253
 254    /* Round-rip to get the wl_drm global */
 255    wl_display_roundtrip(wl_display);
 256
 257    if (!display->drm)
 258       goto fail;
 259
 260    /* Round-rip to get wl_drm formats and capabilities */
 261    wl_display_roundtrip(wl_display);
 262
 263    /* We need prime support */
 264    if (!(display->capabilities & WL_DRM_CAPABILITY_PRIME))
 265       goto fail;
 266
 267    /* We don't need this anymore */
 268    wl_registry_destroy(registry);
 269
 270    return display;
 271
 272 fail:
 273    if (registry)
 274       wl_registry_destroy(registry);
 275
 276    wsi_wl_display_destroy(wsi, display);
 277    return NULL;
 278 }
 279
 280 static struct wsi_wl_display *
 281 wsi_wl_get_display(struct wsi_wayland *wsi, struct wl_display *wl_display)
 282 {
 283    pthread_mutex_lock(&wsi->mutex);
 284
 285    struct hash_entry *entry = _mesa_hash_table_search(wsi->displays,
 286                                                       wl_display);
 287    if (!entry) {
 288       /* We're about to make a bunch of blocking calls.  Let's drop the
 289        * mutex for now so we don't block up too badly.
 290        */
 291       pthread_mutex_unlock(&wsi->mutex);
 292
 293       struct wsi_wl_display *display = wsi_wl_display_create(wsi, wl_display);
 294
 295       pthread_mutex_lock(&wsi->mutex);
 296
 297       entry = _mesa_hash_table_search(wsi->displays, wl_display);
 298       if (entry) {
 299          /* Oops, someone raced us to it */
 300          wsi_wl_display_destroy(wsi, display);
 301       } else {
 302          entry = _mesa_hash_table_insert(wsi->displays, wl_display, display);
 303       }
 304    }
 305
 306    pthread_mutex_unlock(&wsi->mutex);
 307
 308    return entry->data;
 309 }
 310
 311 static VkResult
 312 wsi_wl_get_window_supported(struct anv_wsi_implementation *impl,
 313                             struct anv_physical_device *physical_device,
 314                             const VkSurfaceDescriptionWindowKHR *window,
 315                             VkBool32 *pSupported)
 316 {
 317    struct wsi_wayland *wsi = (struct wsi_wayland *)impl;
 318
 319    *pSupported = wsi_wl_get_display(wsi, window->pPlatformHandle) != NULL;
 320
 321    return VK_SUCCESS;
 322 }
 323
 324 static const VkPresentModeKHR present_modes[] = {
 325    VK_PRESENT_MODE_MAILBOX_KHR,
 326    VK_PRESENT_MODE_FIFO_KHR,
 327 };
 328
 329 static VkResult
 330 wsi_wl_get_surface_properties(struct anv_wsi_implementation *impl,
 331                               struct anv_device *device,
 332                               const VkSurfaceDescriptionWindowKHR *window,
 333                               VkSurfacePropertiesKHR *props)
 334 {
 335    props->minImageCount = MIN_NUM_IMAGES;
 336    props->maxImageCount = 4;
 337    props->currentExtent = (VkExtent2D) { -1, -1 };
 338    props->minImageExtent = (VkExtent2D) { 1, 1 };
 339    props->maxImageExtent = (VkExtent2D) { INT16_MAX, INT16_MAX };
 340    props->supportedTransforms = VK_SURFACE_TRANSFORM_NONE_BIT_KHR;
 341    props->currentTransform = VK_SURFACE_TRANSFORM_NONE_KHR;
 342    props->maxImageArraySize = 1;
 343    props->supportedUsageFlags =
 344       VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 345       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 346
 347    return VK_SUCCESS;
 348 }
 349
 350 static VkResult
 351 wsi_wl_get_surface_formats(struct anv_wsi_implementation *impl,
 352                            struct anv_device *device,
 353                            const VkSurfaceDescriptionWindowKHR *window,
 354                            uint32_t *pCount,
 355                            VkSurfaceFormatKHR *pSurfaceFormats)
 356 {
 357    struct wsi_wayland *wsi = (struct wsi_wayland *)impl;
 358    struct wsi_wl_display *display =
 359       wsi_wl_get_display(wsi, window->pPlatformHandle);
 360
 361    uint32_t count = anv_vector_length(&display->formats);
 362
 363    if (pSurfaceFormats == NULL) {
 364       *pCount = count;
 365       return VK_SUCCESS;
 366    }
 367
 368    assert(*pCount >= count);
 369    *pCount = count;
 370
 371    VkFormat *f;
 372    anv_vector_foreach(f, &display->formats) {
 373       *(pSurfaceFormats++) = (VkSurfaceFormatKHR) {
 374          .format = *f,
 375          /* TODO: We should get this from the compositor somehow */
 376          .colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR,
 377       };
 378    }
 379
 380    return VK_SUCCESS;
 381 }
 382
 383 static VkResult
 384 wsi_wl_get_surface_present_modes(struct anv_wsi_implementation *impl,
 385                                  struct anv_device *device,
 386                                  const VkSurfaceDescriptionWindowKHR *window,
 387                                  uint32_t *pCount,
 388                                  VkPresentModeKHR *pPresentModes)
 389 {
 390    if (pPresentModes == NULL) {
 391       *pCount = ARRAY_SIZE(present_modes);
 392       return VK_SUCCESS;
 393    }
 394
 395    assert(*pCount >= ARRAY_SIZE(present_modes));
 396    typed_memcpy(pPresentModes, present_modes, *pCount);
 397    *pCount = ARRAY_SIZE(present_modes);
 398
 399    return VK_SUCCESS;
 400 }
 401
 402 struct wsi_wl_image {
 403    struct anv_image *                           image;
 404    struct anv_device_memory *                   memory;
 405    struct wl_buffer *                           buffer;
 406    bool                                         busy;
 407 };
 408
 409 struct wsi_wl_swapchain {
 410    struct anv_swapchain                        base;
 411
 412    struct wsi_wl_display *                      display;
 413    struct wl_event_queue *                      queue;
 414    struct wl_surface *                          surface;
 415
 416    VkExtent2D                                   extent;
 417    VkFormat                                     vk_format;
 418    uint32_t                                     drm_format;
 419
 420    VkPresentModeKHR                             present_mode;
 421    bool                                         fifo_ready;
 422
 423    uint32_t                                     image_count;
 424    struct wsi_wl_image                          images[0];
 425 };
 426
 427 static VkResult
 428 wsi_wl_get_images(struct anv_swapchain *anv_chain,
 429                   uint32_t *pCount, VkImage *pSwapchainImages)
 430 {
 431    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)anv_chain;
 432
 433    if (pSwapchainImages == NULL) {
 434       *pCount = chain->image_count;
 435       return VK_SUCCESS;
 436    }
 437
 438    assert(chain->image_count <= *pCount);
 439    for (uint32_t i = 0; i < chain->image_count; i++)
 440       pSwapchainImages[i] = anv_image_to_handle(chain->images[i].image);
 441
 442    *pCount = chain->image_count;
 443
 444    return VK_SUCCESS;
 445 }
 446
 447 static VkResult
 448 wsi_wl_acquire_next_image(struct anv_swapchain *anv_chain,
 449                           uint64_t timeout,
 450                           VkSemaphore semaphore,
 451                           uint32_t *image_index)
 452 {
 453    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)anv_chain;
 454
 455    int ret = wl_display_dispatch_queue_pending(chain->display->display,
 456                                                chain->queue);
 457    /* XXX: I'm not sure if out-of-date is the right error here.  If
 458     * wl_display_dispatch_queue_pending fails it most likely means we got
 459     * kicked by the server so this seems more-or-less correct.
 460     */
 461    if (ret < 0)
 462       return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
 463
 464    while (1) {
 465       for (uint32_t i = 0; i < chain->image_count; i++) {
 466          if (!chain->images[i].busy) {
 467             /* We found a non-busy image */
 468             *image_index = i;
 469             return VK_SUCCESS;
 470          }
 471       }
 472
 473       /* This time we do a blocking dispatch because we can't go
 474        * anywhere until we get an event.
 475        */
 476       int ret = wl_display_dispatch_queue(chain->display->display,
 477                                           chain->queue);
 478       if (ret < 0)
 479          return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
 480    }
 481 }
 482
 483 static void
 484 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 485 {
 486    struct wsi_wl_swapchain *chain = data;
 487
 488    chain->fifo_ready = true;
 489
 490    wl_callback_destroy(callback);
 491 }
 492
 493 static const struct wl_callback_listener frame_listener = {
 494    frame_handle_done,
 495 };
 496
 497 static VkResult
 498 wsi_wl_queue_present(struct anv_swapchain *anv_chain,
 499                      struct anv_queue *queue,
 500                      uint32_t image_index)
 501 {
 502    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)anv_chain;
 503
 504    if (chain->present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 505       while (!chain->fifo_ready) {
 506          int ret = wl_display_dispatch_queue(chain->display->display,
 507                                              chain->queue);
 508          if (ret < 0)
 509             return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
 510       }
 511    }
 512
 513    assert(image_index < chain->image_count);
 514    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 515    wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 516
 517    if (chain->present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 518       struct wl_callback *frame = wl_surface_frame(chain->surface);
 519       wl_proxy_set_queue((struct wl_proxy *)frame, chain->queue);
 520       wl_callback_add_listener(frame, &frame_listener, chain);
 521       chain->fifo_ready = false;
 522    }
 523
 524    wl_surface_commit(chain->surface);
 525    wl_display_flush(chain->display->display);
 526
 527    return VK_SUCCESS;
 528 }
 529
 530 static void
 531 wsi_wl_image_finish(struct wsi_wl_swapchain *chain, struct wsi_wl_image *image)
 532 {
 533    VkDevice vk_device = anv_device_to_handle(chain->base.device);
 534    anv_FreeMemory(vk_device, anv_device_memory_to_handle(image->memory), NULL);
 535    anv_DestroyImage(vk_device, anv_image_to_handle(image->image), NULL);
 536 }
 537
 538 static void
 539 buffer_handle_release(void *data, struct wl_buffer *buffer)
 540 {
 541    struct wsi_wl_image *image = data;
 542
 543    assert(image->buffer == buffer);
 544
 545    image->busy = false;
 546 }
 547
 548 static const struct wl_buffer_listener buffer_listener = {
 549    buffer_handle_release,
 550 };
 551
 552 static VkResult
 553 wsi_wl_image_init(struct wsi_wl_swapchain *chain, struct wsi_wl_image *image)
 554 {
 555    VkDevice vk_device = anv_device_to_handle(chain->base.device);
 556    VkResult result;
 557
 558    VkImage vk_image;
 559    result = anv_image_create(vk_device,
 560       &(struct anv_image_create_info) {
 561          .force_tiling = true,
 562          .tiling = ISL_TILING_X,
 563          .stride = 0,
 564          .vk_info =
 565       &(VkImageCreateInfo) {
 566          .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
 567          .imageType = VK_IMAGE_TYPE_2D,
 568          .format = chain->vk_format,
 569          .extent = {
 570             .width = chain->extent.width,
 571             .height = chain->extent.height,
 572             .depth = 1
 573          },
 574          .mipLevels = 1,
 575          .arrayLayers = 1,
 576          .samples = 1,
 577          /* FIXME: Need a way to use X tiling to allow scanout */
 578          .tiling = VK_IMAGE_TILING_OPTIMAL,
 579          .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
 580          .flags = 0,
 581       }},
 582       NULL,
 583       &vk_image);
 584
 585    if (result != VK_SUCCESS)
 586       return result;
 587
 588    image->image = anv_image_from_handle(vk_image);
 589    assert(anv_format_is_color(image->image->format));
 590
 591    struct anv_surface *surface = &image->image->color_surface;
 592
 593    VkDeviceMemory vk_memory;
 594    result = anv_AllocateMemory(vk_device,
 595       &(VkMemoryAllocateInfo) {
 596          .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
 597          .allocationSize = image->image->size,
 598          .memoryTypeIndex = 0,
 599       },
 600       NULL,
 601       &vk_memory);
 602
 603    if (result != VK_SUCCESS)
 604       goto fail_image;
 605
 606    image->memory = anv_device_memory_from_handle(vk_memory);
 607
 608    result = anv_BindImageMemory(vk_device, vk_image, vk_memory, 0);
 609
 610    if (result != VK_SUCCESS)
 611       goto fail_mem;
 612
 613    int ret = anv_gem_set_tiling(chain->base.device,
 614                                 image->memory->bo.gem_handle,
 615                                 surface->stride, I915_TILING_X);
 616    if (ret) {
 617       /* FINISHME: Choose a better error. */
 618       result = vk_error(VK_ERROR_OUT_OF_DEVICE_MEMORY);
 619       goto fail_mem;
 620    }
 621
 622    int fd = anv_gem_handle_to_fd(chain->base.device,
 623                                  image->memory->bo.gem_handle);
 624    if (fd == -1) {
 625       /* FINISHME: Choose a better error. */
 626       result = vk_error(VK_ERROR_OUT_OF_DEVICE_MEMORY);
 627       goto fail_mem;
 628    }
 629
 630    image->buffer = wl_drm_create_prime_buffer(chain->display->drm,
 631                                               fd, /* name */
 632                                               chain->extent.width,
 633                                               chain->extent.height,
 634                                               chain->drm_format,
 635                                               surface->offset,
 636                                               surface->stride,
 637                                               0, 0, 0, 0 /* unused */);
 638    wl_display_roundtrip(chain->display->display);
 639    close(fd);
 640
 641    wl_proxy_set_queue((struct wl_proxy *)image->buffer, chain->queue);
 642    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 643
 644    return VK_SUCCESS;
 645
 646 fail_mem:
 647    anv_FreeMemory(vk_device, vk_memory, NULL);
 648 fail_image:
 649    anv_DestroyImage(vk_device, vk_image, NULL);
 650
 651    return result;
 652 }
 653
 654 static VkResult
 655 wsi_wl_destroy_swapchain(struct anv_swapchain *anv_chain)
 656 {
 657    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)anv_chain;
 658
 659    for (uint32_t i = 0; i < chain->image_count; i++) {
 660       if (chain->images[i].buffer)
 661          wsi_wl_image_finish(chain, &chain->images[i]);
 662    }
 663
 664    anv_free(&chain->base.device->alloc, chain);
 665
 666    return VK_SUCCESS;
 667 }
 668
 669 static VkResult
 670 wsi_wl_create_swapchain(struct anv_wsi_implementation *impl,
 671                          struct anv_device *device,
 672                          const VkSwapchainCreateInfoKHR *pCreateInfo,
 673                          struct anv_swapchain **swapchain_out)
 674 {
 675    struct wsi_wayland *wsi = (struct wsi_wayland *)impl;
 676    struct wsi_wl_swapchain *chain;
 677    VkResult result;
 678
 679    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
 680
 681    assert(pCreateInfo->pSurfaceDescription->sType ==
 682           VK_STRUCTURE_TYPE_SURFACE_DESCRIPTION_WINDOW_KHR);
 683    VkSurfaceDescriptionWindowKHR *vk_window =
 684       (VkSurfaceDescriptionWindowKHR *)pCreateInfo->pSurfaceDescription;
 685    assert(vk_window->platform == VK_PLATFORM_WAYLAND_KHR);
 686
 687    int num_images = pCreateInfo->minImageCount;
 688
 689    assert(num_images >= MIN_NUM_IMAGES);
 690
 691    /* For true mailbox mode, we need at least 4 images:
 692     *  1) One to scan out from
 693     *  2) One to have queued for scan-out
 694     *  3) One to be currently held by the Wayland compositor
 695     *  4) One to render to
 696     */
 697    if (pCreateInfo->presentMode == VK_PRESENT_MODE_MAILBOX_KHR)
 698       num_images = MAX2(num_images, 4);
 699
 700    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 701    chain = anv_alloc(&device->alloc, size, 8,
 702                      VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 703    if (chain == NULL)
 704       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 705
 706    chain->base.device = device;
 707    chain->base.destroy = wsi_wl_destroy_swapchain;
 708    chain->base.get_images = wsi_wl_get_images;
 709    chain->base.acquire_next_image = wsi_wl_acquire_next_image;
 710    chain->base.queue_present = wsi_wl_queue_present;
 711
 712    chain->surface = vk_window->pPlatformWindow;
 713    chain->extent = pCreateInfo->imageExtent;
 714    chain->vk_format = pCreateInfo->imageFormat;
 715    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, false);
 716
 717    chain->present_mode = pCreateInfo->presentMode;
 718    chain->fifo_ready = true;
 719
 720    chain->image_count = num_images;
 721
 722    /* Mark a bunch of stuff as NULL.  This way we can just call
 723     * destroy_swapchain for cleanup.
 724     */
 725    for (uint32_t i = 0; i < chain->image_count; i++)
 726       chain->images[i].buffer = NULL;
 727    chain->queue = NULL;
 728
 729    chain->display = wsi_wl_get_display(wsi, vk_window->pPlatformHandle);
 730    if (!chain->display)
 731       goto fail;
 732
 733    chain->queue = wl_display_create_queue(chain->display->display);
 734    if (!chain->queue)
 735       goto fail;
 736
 737    for (uint32_t i = 0; i < chain->image_count; i++) {
 738       result = wsi_wl_image_init(chain, &chain->images[i]);
 739       if (result != VK_SUCCESS)
 740          goto fail;
 741       chain->images[i].busy = false;
 742    }
 743
 744    *swapchain_out = &chain->base;
 745
 746    return VK_SUCCESS;
 747
 748 fail:
 749    wsi_wl_destroy_swapchain(&chain->base);
 750
 751    return result;
 752 }
 753
 754 VkResult
 755 anv_wl_init_wsi(struct anv_instance *instance)
 756 {
 757    struct wsi_wayland *wsi;
 758    VkResult result;
 759
 760    wsi = anv_alloc(&instance->alloc, sizeof(*wsi), 8,
 761                    VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 762    if (!wsi)
 763       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 764
 765    wsi->base.get_window_supported = wsi_wl_get_window_supported;
 766    wsi->base.get_surface_properties = wsi_wl_get_surface_properties;
 767    wsi->base.get_surface_formats = wsi_wl_get_surface_formats;
 768    wsi->base.get_surface_present_modes = wsi_wl_get_surface_present_modes;
 769    wsi->base.create_swapchain = wsi_wl_create_swapchain;
 770
 771    wsi->instance = instance;
 772
 773    int ret = pthread_mutex_init(&wsi->mutex, NULL);
 774    if (ret != 0) {
 775       if (ret == ENOMEM) {
 776          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 777       } else {
 778          /* FINISHME: Choose a better error. */
 779          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 780       }
 781
 782       goto fail_alloc;
 783    }
 784
 785    wsi->displays = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
 786                                            _mesa_key_pointer_equal);
 787    if (!wsi->displays) {
 788       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 789       goto fail_mutex;
 790    }
 791
 792    instance->wsi_impl[VK_PLATFORM_WAYLAND_KHR] = &wsi->base;
 793
 794    return VK_SUCCESS;
 795
 796 fail_mutex:
 797    pthread_mutex_destroy(&wsi->mutex);
 798
 799 fail_alloc:
 800    anv_free(&instance->alloc, wsi);
 801
 802    return result;
 803 }
 804
 805 void
 806 anv_wl_finish_wsi(struct anv_instance *instance)
 807 {
 808    struct wsi_wayland *wsi =
 809       (struct wsi_wayland *)instance->wsi_impl[VK_PLATFORM_WAYLAND_KHR];
 810
 811    _mesa_hash_table_destroy(wsi->displays, NULL);
 812
 813    pthread_mutex_destroy(&wsi->mutex);
 814
 815    anv_free(&instance->alloc, wsi);
 816 }