src/intel/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_interface                     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)->isl_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_SRGB:
 107       return WL_DRM_FORMAT_BGRX8888;
 108    case VK_FORMAT_B8G8R8A8_SRGB:
 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_SRGB);
 163       /* fallthrough */
 164    case WL_DRM_FORMAT_ARGB8888:
 165       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_SRGB);
 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_INSTANCE);
 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 anv_instance *instance, struct wl_display *wl_display)
 282 {
 283    struct wsi_wayland *wsi =
 284       (struct wsi_wayland *)instance->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 285
 286    pthread_mutex_lock(&wsi->mutex);
 287
 288    struct hash_entry *entry = _mesa_hash_table_search(wsi->displays,
 289                                                       wl_display);
 290    if (!entry) {
 291       /* We're about to make a bunch of blocking calls.  Let's drop the
 292        * mutex for now so we don't block up too badly.
 293        */
 294       pthread_mutex_unlock(&wsi->mutex);
 295
 296       struct wsi_wl_display *display = wsi_wl_display_create(wsi, wl_display);
 297
 298       pthread_mutex_lock(&wsi->mutex);
 299
 300       entry = _mesa_hash_table_search(wsi->displays, wl_display);
 301       if (entry) {
 302          /* Oops, someone raced us to it */
 303          wsi_wl_display_destroy(wsi, display);
 304       } else {
 305          entry = _mesa_hash_table_insert(wsi->displays, wl_display, display);
 306       }
 307    }
 308
 309    pthread_mutex_unlock(&wsi->mutex);
 310
 311    return entry->data;
 312 }
 313
 314 VkBool32 anv_GetPhysicalDeviceWaylandPresentationSupportKHR(
 315     VkPhysicalDevice                            physicalDevice,
 316     uint32_t                                    queueFamilyIndex,
 317     struct wl_display*                          display)
 318 {
 319    ANV_FROM_HANDLE(anv_physical_device, physical_device, physicalDevice);
 320
 321    return wsi_wl_get_display(physical_device->instance, display) != NULL;
 322 }
 323
 324 static VkResult
 325 wsi_wl_surface_get_support(VkIcdSurfaceBase *surface,
 326                            struct anv_physical_device *device,
 327                            uint32_t queueFamilyIndex,
 328                            VkBool32* pSupported)
 329 {
 330    *pSupported = true;
 331
 332    return VK_SUCCESS;
 333 }
 334
 335 static const VkPresentModeKHR present_modes[] = {
 336    VK_PRESENT_MODE_MAILBOX_KHR,
 337    VK_PRESENT_MODE_FIFO_KHR,
 338 };
 339
 340 static VkResult
 341 wsi_wl_surface_get_capabilities(VkIcdSurfaceBase *surface,
 342                                 struct anv_physical_device *device,
 343                                 VkSurfaceCapabilitiesKHR* caps)
 344 {
 345    caps->minImageCount = MIN_NUM_IMAGES;
 346    caps->maxImageCount = 4;
 347    caps->currentExtent = (VkExtent2D) { -1, -1 };
 348    caps->minImageExtent = (VkExtent2D) { 1, 1 };
 349    caps->maxImageExtent = (VkExtent2D) { INT16_MAX, INT16_MAX };
 350    caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 351    caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 352    caps->maxImageArrayLayers = 1;
 353
 354    caps->supportedCompositeAlpha =
 355       VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
 356       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 357
 358    caps->supportedUsageFlags =
 359       VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 360       VK_IMAGE_USAGE_SAMPLED_BIT |
 361       VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 362       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 363
 364    return VK_SUCCESS;
 365 }
 366
 367 static VkResult
 368 wsi_wl_surface_get_formats(VkIcdSurfaceBase *icd_surface,
 369                            struct anv_physical_device *device,
 370                            uint32_t* pSurfaceFormatCount,
 371                            VkSurfaceFormatKHR* pSurfaceFormats)
 372 {
 373    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 374    struct wsi_wl_display *display =
 375       wsi_wl_get_display(device->instance, surface->display);
 376
 377    uint32_t count = anv_vector_length(&display->formats);
 378
 379    if (pSurfaceFormats == NULL) {
 380       *pSurfaceFormatCount = count;
 381       return VK_SUCCESS;
 382    }
 383
 384    assert(*pSurfaceFormatCount >= count);
 385    *pSurfaceFormatCount = count;
 386
 387    VkFormat *f;
 388    anv_vector_foreach(f, &display->formats) {
 389       *(pSurfaceFormats++) = (VkSurfaceFormatKHR) {
 390          .format = *f,
 391          /* TODO: We should get this from the compositor somehow */
 392          .colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR,
 393       };
 394    }
 395
 396    return VK_SUCCESS;
 397 }
 398
 399 static VkResult
 400 wsi_wl_surface_get_present_modes(VkIcdSurfaceBase *surface,
 401                                  struct anv_physical_device *device,
 402                                  uint32_t* pPresentModeCount,
 403                                  VkPresentModeKHR* pPresentModes)
 404 {
 405    if (pPresentModes == NULL) {
 406       *pPresentModeCount = ARRAY_SIZE(present_modes);
 407       return VK_SUCCESS;
 408    }
 409
 410    assert(*pPresentModeCount >= ARRAY_SIZE(present_modes));
 411    typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
 412    *pPresentModeCount = ARRAY_SIZE(present_modes);
 413
 414    return VK_SUCCESS;
 415 }
 416
 417 static VkResult
 418 wsi_wl_surface_create_swapchain(VkIcdSurfaceBase *surface,
 419                                 struct anv_device *device,
 420                                 const VkSwapchainCreateInfoKHR* pCreateInfo,
 421                                 const VkAllocationCallbacks* pAllocator,
 422                                 struct anv_swapchain **swapchain);
 423
 424 VkResult anv_CreateWaylandSurfaceKHR(
 425     VkInstance                                  _instance,
 426     const VkWaylandSurfaceCreateInfoKHR*        pCreateInfo,
 427     const VkAllocationCallbacks*                pAllocator,
 428     VkSurfaceKHR*                               pSurface)
 429 {
 430    ANV_FROM_HANDLE(anv_instance, instance, _instance);
 431
 432    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR);
 433
 434    VkIcdSurfaceWayland *surface;
 435
 436    surface = anv_alloc2(&instance->alloc, pAllocator, sizeof *surface, 8,
 437                         VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 438    if (surface == NULL)
 439       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 440
 441    surface->base.platform = VK_ICD_WSI_PLATFORM_WAYLAND;
 442    surface->display = pCreateInfo->display;
 443    surface->surface = pCreateInfo->surface;
 444
 445    *pSurface = _VkIcdSurfaceBase_to_handle(&surface->base);
 446
 447    return VK_SUCCESS;
 448 }
 449
 450 struct wsi_wl_image {
 451    struct anv_image *                           image;
 452    struct anv_device_memory *                   memory;
 453    struct wl_buffer *                           buffer;
 454    bool                                         busy;
 455 };
 456
 457 struct wsi_wl_swapchain {
 458    struct anv_swapchain                        base;
 459
 460    struct wsi_wl_display *                      display;
 461    struct wl_event_queue *                      queue;
 462    struct wl_surface *                          surface;
 463
 464    VkExtent2D                                   extent;
 465    VkFormat                                     vk_format;
 466    uint32_t                                     drm_format;
 467
 468    VkPresentModeKHR                             present_mode;
 469    bool                                         fifo_ready;
 470
 471    uint32_t                                     image_count;
 472    struct wsi_wl_image                          images[0];
 473 };
 474
 475 static VkResult
 476 wsi_wl_swapchain_get_images(struct anv_swapchain *anv_chain,
 477                             uint32_t *pCount, VkImage *pSwapchainImages)
 478 {
 479    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)anv_chain;
 480
 481    if (pSwapchainImages == NULL) {
 482       *pCount = chain->image_count;
 483       return VK_SUCCESS;
 484    }
 485
 486    assert(chain->image_count <= *pCount);
 487    for (uint32_t i = 0; i < chain->image_count; i++)
 488       pSwapchainImages[i] = anv_image_to_handle(chain->images[i].image);
 489
 490    *pCount = chain->image_count;
 491
 492    return VK_SUCCESS;
 493 }
 494
 495 static VkResult
 496 wsi_wl_swapchain_acquire_next_image(struct anv_swapchain *anv_chain,
 497                                     uint64_t timeout,
 498                                     VkSemaphore semaphore,
 499                                     uint32_t *image_index)
 500 {
 501    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)anv_chain;
 502
 503    int ret = wl_display_dispatch_queue_pending(chain->display->display,
 504                                                chain->queue);
 505    /* XXX: I'm not sure if out-of-date is the right error here.  If
 506     * wl_display_dispatch_queue_pending fails it most likely means we got
 507     * kicked by the server so this seems more-or-less correct.
 508     */
 509    if (ret < 0)
 510       return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
 511
 512    while (1) {
 513       for (uint32_t i = 0; i < chain->image_count; i++) {
 514          if (!chain->images[i].busy) {
 515             /* We found a non-busy image */
 516             *image_index = i;
 517             return VK_SUCCESS;
 518          }
 519       }
 520
 521       /* This time we do a blocking dispatch because we can't go
 522        * anywhere until we get an event.
 523        */
 524       int ret = wl_display_roundtrip_queue(chain->display->display,
 525                                            chain->queue);
 526       if (ret < 0)
 527          return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
 528    }
 529 }
 530
 531 static void
 532 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 533 {
 534    struct wsi_wl_swapchain *chain = data;
 535
 536    chain->fifo_ready = true;
 537
 538    wl_callback_destroy(callback);
 539 }
 540
 541 static const struct wl_callback_listener frame_listener = {
 542    frame_handle_done,
 543 };
 544
 545 static VkResult
 546 wsi_wl_swapchain_queue_present(struct anv_swapchain *anv_chain,
 547                                struct anv_queue *queue,
 548                                uint32_t image_index)
 549 {
 550    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)anv_chain;
 551
 552    if (chain->present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 553       while (!chain->fifo_ready) {
 554          int ret = wl_display_dispatch_queue(chain->display->display,
 555                                              chain->queue);
 556          if (ret < 0)
 557             return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
 558       }
 559    }
 560
 561    assert(image_index < chain->image_count);
 562    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 563    wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 564
 565    if (chain->present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 566       struct wl_callback *frame = wl_surface_frame(chain->surface);
 567       wl_proxy_set_queue((struct wl_proxy *)frame, chain->queue);
 568       wl_callback_add_listener(frame, &frame_listener, chain);
 569       chain->fifo_ready = false;
 570    }
 571
 572    chain->images[image_index].busy = true;
 573    wl_surface_commit(chain->surface);
 574    wl_display_flush(chain->display->display);
 575
 576    return VK_SUCCESS;
 577 }
 578
 579 static void
 580 wsi_wl_image_finish(struct wsi_wl_swapchain *chain, struct wsi_wl_image *image,
 581                     const VkAllocationCallbacks* pAllocator)
 582 {
 583    VkDevice vk_device = anv_device_to_handle(chain->base.device);
 584    anv_FreeMemory(vk_device, anv_device_memory_to_handle(image->memory),
 585                   pAllocator);
 586    anv_DestroyImage(vk_device, anv_image_to_handle(image->image),
 587                     pAllocator);
 588 }
 589
 590 static void
 591 buffer_handle_release(void *data, struct wl_buffer *buffer)
 592 {
 593    struct wsi_wl_image *image = data;
 594
 595    assert(image->buffer == buffer);
 596
 597    image->busy = false;
 598 }
 599
 600 static const struct wl_buffer_listener buffer_listener = {
 601    buffer_handle_release,
 602 };
 603
 604 static VkResult
 605 wsi_wl_image_init(struct wsi_wl_swapchain *chain, struct wsi_wl_image *image,
 606                   const VkAllocationCallbacks* pAllocator)
 607 {
 608    VkDevice vk_device = anv_device_to_handle(chain->base.device);
 609    VkResult result;
 610
 611    VkImage vk_image;
 612    result = anv_image_create(vk_device,
 613       &(struct anv_image_create_info) {
 614          .isl_tiling_flags = ISL_TILING_X_BIT,
 615          .stride = 0,
 616          .vk_info =
 617       &(VkImageCreateInfo) {
 618          .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
 619          .imageType = VK_IMAGE_TYPE_2D,
 620          .format = chain->vk_format,
 621          .extent = {
 622             .width = chain->extent.width,
 623             .height = chain->extent.height,
 624             .depth = 1
 625          },
 626          .mipLevels = 1,
 627          .arrayLayers = 1,
 628          .samples = 1,
 629          /* FIXME: Need a way to use X tiling to allow scanout */
 630          .tiling = VK_IMAGE_TILING_OPTIMAL,
 631          .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
 632          .flags = 0,
 633       }},
 634       pAllocator,
 635       &vk_image);
 636
 637    if (result != VK_SUCCESS)
 638       return result;
 639
 640    image->image = anv_image_from_handle(vk_image);
 641    assert(anv_format_is_color(image->image->format));
 642
 643    struct anv_surface *surface = &image->image->color_surface;
 644
 645    VkDeviceMemory vk_memory;
 646    result = anv_AllocateMemory(vk_device,
 647       &(VkMemoryAllocateInfo) {
 648          .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
 649          .allocationSize = image->image->size,
 650          .memoryTypeIndex = 0,
 651       },
 652       pAllocator,
 653       &vk_memory);
 654
 655    if (result != VK_SUCCESS)
 656       goto fail_image;
 657
 658    image->memory = anv_device_memory_from_handle(vk_memory);
 659    image->memory->bo.is_winsys_bo = true;
 660
 661    result = anv_BindImageMemory(vk_device, vk_image, vk_memory, 0);
 662
 663    if (result != VK_SUCCESS)
 664       goto fail_mem;
 665
 666    int ret = anv_gem_set_tiling(chain->base.device,
 667                                 image->memory->bo.gem_handle,
 668                                 surface->isl.row_pitch, I915_TILING_X);
 669    if (ret) {
 670       /* FINISHME: Choose a better error. */
 671       result = vk_error(VK_ERROR_OUT_OF_DEVICE_MEMORY);
 672       goto fail_mem;
 673    }
 674
 675    int fd = anv_gem_handle_to_fd(chain->base.device,
 676                                  image->memory->bo.gem_handle);
 677    if (fd == -1) {
 678       /* FINISHME: Choose a better error. */
 679       result = vk_error(VK_ERROR_OUT_OF_DEVICE_MEMORY);
 680       goto fail_mem;
 681    }
 682
 683    image->buffer = wl_drm_create_prime_buffer(chain->display->drm,
 684                                               fd, /* name */
 685                                               chain->extent.width,
 686                                               chain->extent.height,
 687                                               chain->drm_format,
 688                                               surface->offset,
 689                                               surface->isl.row_pitch,
 690                                               0, 0, 0, 0 /* unused */);
 691    wl_display_roundtrip(chain->display->display);
 692    close(fd);
 693
 694    wl_proxy_set_queue((struct wl_proxy *)image->buffer, chain->queue);
 695    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 696
 697    return VK_SUCCESS;
 698
 699 fail_mem:
 700    anv_FreeMemory(vk_device, vk_memory, pAllocator);
 701 fail_image:
 702    anv_DestroyImage(vk_device, vk_image, pAllocator);
 703
 704    return result;
 705 }
 706
 707 static VkResult
 708 wsi_wl_swapchain_destroy(struct anv_swapchain *anv_chain,
 709                          const VkAllocationCallbacks *pAllocator)
 710 {
 711    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)anv_chain;
 712
 713    for (uint32_t i = 0; i < chain->image_count; i++) {
 714       if (chain->images[i].buffer)
 715          wsi_wl_image_finish(chain, &chain->images[i], pAllocator);
 716    }
 717
 718    anv_free2(&chain->base.device->alloc, pAllocator, chain);
 719
 720    return VK_SUCCESS;
 721 }
 722
 723 static VkResult
 724 wsi_wl_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
 725                                 struct anv_device *device,
 726                                 const VkSwapchainCreateInfoKHR* pCreateInfo,
 727                                 const VkAllocationCallbacks* pAllocator,
 728                                 struct anv_swapchain **swapchain_out)
 729 {
 730    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 731    struct wsi_wl_swapchain *chain;
 732    VkResult result;
 733
 734    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
 735
 736    int num_images = pCreateInfo->minImageCount;
 737
 738    assert(num_images >= MIN_NUM_IMAGES);
 739
 740    /* For true mailbox mode, we need at least 4 images:
 741     *  1) One to scan out from
 742     *  2) One to have queued for scan-out
 743     *  3) One to be currently held by the Wayland compositor
 744     *  4) One to render to
 745     */
 746    if (pCreateInfo->presentMode == VK_PRESENT_MODE_MAILBOX_KHR)
 747       num_images = MAX2(num_images, 4);
 748
 749    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 750    chain = anv_alloc2(&device->alloc, pAllocator, size, 8,
 751                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 752    if (chain == NULL)
 753       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 754
 755    chain->base.device = device;
 756    chain->base.destroy = wsi_wl_swapchain_destroy;
 757    chain->base.get_images = wsi_wl_swapchain_get_images;
 758    chain->base.acquire_next_image = wsi_wl_swapchain_acquire_next_image;
 759    chain->base.queue_present = wsi_wl_swapchain_queue_present;
 760
 761    chain->surface = surface->surface;
 762    chain->extent = pCreateInfo->imageExtent;
 763    chain->vk_format = pCreateInfo->imageFormat;
 764    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, false);
 765
 766    chain->present_mode = pCreateInfo->presentMode;
 767    chain->fifo_ready = true;
 768
 769    chain->image_count = num_images;
 770
 771    /* Mark a bunch of stuff as NULL.  This way we can just call
 772     * destroy_swapchain for cleanup.
 773     */
 774    for (uint32_t i = 0; i < chain->image_count; i++)
 775       chain->images[i].buffer = NULL;
 776    chain->queue = NULL;
 777
 778    chain->display = wsi_wl_get_display(device->instance, surface->display);
 779    if (!chain->display)
 780       goto fail;
 781
 782    chain->queue = wl_display_create_queue(chain->display->display);
 783    if (!chain->queue)
 784       goto fail;
 785
 786    for (uint32_t i = 0; i < chain->image_count; i++) {
 787       result = wsi_wl_image_init(chain, &chain->images[i], pAllocator);
 788       if (result != VK_SUCCESS)
 789          goto fail;
 790       chain->images[i].busy = false;
 791    }
 792
 793    *swapchain_out = &chain->base;
 794
 795    return VK_SUCCESS;
 796
 797 fail:
 798    wsi_wl_swapchain_destroy(&chain->base, pAllocator);
 799
 800    return result;
 801 }
 802
 803 VkResult
 804 anv_wl_init_wsi(struct anv_instance *instance)
 805 {
 806    struct wsi_wayland *wsi;
 807    VkResult result;
 808
 809    wsi = anv_alloc(&instance->alloc, sizeof(*wsi), 8,
 810                    VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
 811    if (!wsi) {
 812       result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 813       goto fail;
 814    }
 815
 816    wsi->instance = instance;
 817
 818    int ret = pthread_mutex_init(&wsi->mutex, NULL);
 819    if (ret != 0) {
 820       if (ret == ENOMEM) {
 821          result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 822       } else {
 823          /* FINISHME: Choose a better error. */
 824          result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 825       }
 826
 827       goto fail_alloc;
 828    }
 829
 830    wsi->displays = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
 831                                            _mesa_key_pointer_equal);
 832    if (!wsi->displays) {
 833       result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 834       goto fail_mutex;
 835    }
 836
 837    wsi->base.get_support = wsi_wl_surface_get_support;
 838    wsi->base.get_capabilities = wsi_wl_surface_get_capabilities;
 839    wsi->base.get_formats = wsi_wl_surface_get_formats;
 840    wsi->base.get_present_modes = wsi_wl_surface_get_present_modes;
 841    wsi->base.create_swapchain = wsi_wl_surface_create_swapchain;
 842
 843    instance->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = &wsi->base;
 844
 845    return VK_SUCCESS;
 846
 847 fail_mutex:
 848    pthread_mutex_destroy(&wsi->mutex);
 849
 850 fail_alloc:
 851    anv_free(&instance->alloc, wsi);
 852 fail:
 853    instance->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = NULL;
 854
 855    return result;
 856 }
 857
 858 void
 859 anv_wl_finish_wsi(struct anv_instance *instance)
 860 {
 861    struct wsi_wayland *wsi =
 862       (struct wsi_wayland *)instance->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 863
 864    if (wsi) {
 865       _mesa_hash_table_destroy(wsi->displays, NULL);
 866
 867       pthread_mutex_destroy(&wsi->mutex);
 868
 869       anv_free(&instance->alloc, wsi);
 870    }
 871 }