src/vulkan/wsi/wsi_common_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 <assert.h>
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30 #include <unistd.h>
  31 #include <errno.h>
  32 #include <string.h>
  33 #include <pthread.h>
  34
  35 #include "wsi_common_wayland.h"
  36
  37 #include <util/hash_table.h>
  38 #include <util/u_vector.h>
  39
  40 #define typed_memcpy(dest, src, count) ({ \
  41    STATIC_ASSERT(sizeof(*src) == sizeof(*dest)); \
  42    memcpy((dest), (src), (count) * sizeof(*(src))); \
  43 })
  44
  45 struct wsi_wayland;
  46
  47 struct wsi_wl_display {
  48    struct wl_display *                          display;
  49    struct wl_drm *                              drm;
  50
  51    struct wsi_wayland *wsi_wl;
  52    /* Vector of VkFormats supported */
  53    struct u_vector                            formats;
  54
  55    uint32_t                                     capabilities;
  56 };
  57
  58 struct wsi_wayland {
  59    struct wsi_interface                     base;
  60
  61    const VkAllocationCallbacks *alloc;
  62    VkPhysicalDevice physical_device;
  63
  64    pthread_mutex_t                              mutex;
  65    /* Hash table of wl_display -> wsi_wl_display mappings */
  66    struct hash_table *                          displays;
  67
  68    const struct wsi_callbacks *cbs;
  69 };
  70
  71 static void
  72 wsi_wl_display_add_vk_format(struct wsi_wl_display *display, VkFormat format)
  73 {
  74    /* Don't add a format that's already in the list */
  75    VkFormat *f;
  76    u_vector_foreach(f, &display->formats)
  77       if (*f == format)
  78          return;
  79
  80    /* Don't add formats that aren't renderable. */
  81    VkFormatProperties props;
  82
  83    display->wsi_wl->cbs->get_phys_device_format_properties(display->wsi_wl->physical_device,
  84                                                            format, &props);
  85    if (!(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
  86       return;
  87
  88    f = u_vector_add(&display->formats);
  89    if (f)
  90       *f = format;
  91 }
  92
  93 static void
  94 drm_handle_device(void *data, struct wl_drm *drm, const char *name)
  95 {
  96    fprintf(stderr, "wl_drm.device(%s)\n", name);
  97 }
  98
  99 static uint32_t
 100 wl_drm_format_for_vk_format(VkFormat vk_format, bool alpha)
 101 {
 102    switch (vk_format) {
 103    /* TODO: Figure out what all the formats mean and make this table
 104     * correct.
 105     */
 106 #if 0
 107    case VK_FORMAT_R4G4B4A4_UNORM:
 108       return alpha ? WL_DRM_FORMAT_ABGR4444 : WL_DRM_FORMAT_XBGR4444;
 109    case VK_FORMAT_R5G6B5_UNORM:
 110       return WL_DRM_FORMAT_BGR565;
 111    case VK_FORMAT_R5G5B5A1_UNORM:
 112       return alpha ? WL_DRM_FORMAT_ABGR1555 : WL_DRM_FORMAT_XBGR1555;
 113    case VK_FORMAT_R8G8B8_UNORM:
 114       return WL_DRM_FORMAT_XBGR8888;
 115    case VK_FORMAT_R8G8B8A8_UNORM:
 116       return alpha ? WL_DRM_FORMAT_ABGR8888 : WL_DRM_FORMAT_XBGR8888;
 117    case VK_FORMAT_R10G10B10A2_UNORM:
 118       return alpha ? WL_DRM_FORMAT_ABGR2101010 : WL_DRM_FORMAT_XBGR2101010;
 119    case VK_FORMAT_B4G4R4A4_UNORM:
 120       return alpha ? WL_DRM_FORMAT_ARGB4444 : WL_DRM_FORMAT_XRGB4444;
 121    case VK_FORMAT_B5G6R5_UNORM:
 122       return WL_DRM_FORMAT_RGB565;
 123    case VK_FORMAT_B5G5R5A1_UNORM:
 124       return alpha ? WL_DRM_FORMAT_XRGB1555 : WL_DRM_FORMAT_XRGB1555;
 125 #endif
 126    case VK_FORMAT_B8G8R8_UNORM:
 127    case VK_FORMAT_B8G8R8_SRGB:
 128       return WL_DRM_FORMAT_BGRX8888;
 129    case VK_FORMAT_B8G8R8A8_UNORM:
 130    case VK_FORMAT_B8G8R8A8_SRGB:
 131       return alpha ? WL_DRM_FORMAT_ARGB8888 : WL_DRM_FORMAT_XRGB8888;
 132 #if 0
 133    case VK_FORMAT_B10G10R10A2_UNORM:
 134       return alpha ? WL_DRM_FORMAT_ARGB2101010 : WL_DRM_FORMAT_XRGB2101010;
 135 #endif
 136
 137    default:
 138       assert(!"Unsupported Vulkan format");
 139       return 0;
 140    }
 141 }
 142
 143 static void
 144 drm_handle_format(void *data, struct wl_drm *drm, uint32_t wl_format)
 145 {
 146    struct wsi_wl_display *display = data;
 147
 148    switch (wl_format) {
 149 #if 0
 150    case WL_DRM_FORMAT_ABGR4444:
 151    case WL_DRM_FORMAT_XBGR4444:
 152       wsi_wl_display_add_vk_format(display, VK_FORMAT_R4G4B4A4_UNORM);
 153       break;
 154    case WL_DRM_FORMAT_BGR565:
 155       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G6B5_UNORM);
 156       break;
 157    case WL_DRM_FORMAT_ABGR1555:
 158    case WL_DRM_FORMAT_XBGR1555:
 159       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G5B5A1_UNORM);
 160       break;
 161    case WL_DRM_FORMAT_XBGR8888:
 162       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8_UNORM);
 163       /* fallthrough */
 164    case WL_DRM_FORMAT_ABGR8888:
 165       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8A8_UNORM);
 166       break;
 167    case WL_DRM_FORMAT_ABGR2101010:
 168    case WL_DRM_FORMAT_XBGR2101010:
 169       wsi_wl_display_add_vk_format(display, VK_FORMAT_R10G10B10A2_UNORM);
 170       break;
 171    case WL_DRM_FORMAT_ARGB4444:
 172    case WL_DRM_FORMAT_XRGB4444:
 173       wsi_wl_display_add_vk_format(display, VK_FORMAT_B4G4R4A4_UNORM);
 174       break;
 175    case WL_DRM_FORMAT_RGB565:
 176       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G6R5_UNORM);
 177       break;
 178    case WL_DRM_FORMAT_ARGB1555:
 179    case WL_DRM_FORMAT_XRGB1555:
 180       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G5R5A1_UNORM);
 181       break;
 182 #endif
 183    case WL_DRM_FORMAT_XRGB8888:
 184       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8_SRGB);
 185       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8_UNORM);
 186       /* fallthrough */
 187    case WL_DRM_FORMAT_ARGB8888:
 188       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_SRGB);
 189       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_UNORM);
 190       break;
 191 #if 0
 192    case WL_DRM_FORMAT_ARGB2101010:
 193    case WL_DRM_FORMAT_XRGB2101010:
 194       wsi_wl_display_add_vk_format(display, VK_FORMAT_B10G10R10A2_UNORM);
 195       break;
 196 #endif
 197    }
 198 }
 199
 200 static void
 201 drm_handle_authenticated(void *data, struct wl_drm *drm)
 202 {
 203 }
 204
 205 static void
 206 drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t capabilities)
 207 {
 208    struct wsi_wl_display *display = data;
 209
 210    display->capabilities = capabilities;
 211 }
 212
 213 static const struct wl_drm_listener drm_listener = {
 214    drm_handle_device,
 215    drm_handle_format,
 216    drm_handle_authenticated,
 217    drm_handle_capabilities,
 218 };
 219
 220 static void
 221 registry_handle_global(void *data, struct wl_registry *registry,
 222                        uint32_t name, const char *interface, uint32_t version)
 223 {
 224    struct wsi_wl_display *display = data;
 225
 226    if (strcmp(interface, "wl_drm") == 0) {
 227       assert(display->drm == NULL);
 228
 229       assert(version >= 2);
 230       display->drm = wl_registry_bind(registry, name, &wl_drm_interface, 2);
 231
 232       if (display->drm)
 233          wl_drm_add_listener(display->drm, &drm_listener, display);
 234    }
 235 }
 236
 237 static void
 238 registry_handle_global_remove(void *data, struct wl_registry *registry,
 239                               uint32_t name)
 240 { /* No-op */ }
 241
 242 static const struct wl_registry_listener registry_listener = {
 243    registry_handle_global,
 244    registry_handle_global_remove
 245 };
 246
 247 static void
 248 wsi_wl_display_destroy(struct wsi_wayland *wsi, struct wsi_wl_display *display)
 249 {
 250    u_vector_finish(&display->formats);
 251    if (display->drm)
 252       wl_drm_destroy(display->drm);
 253    vk_free(wsi->alloc, display);
 254 }
 255
 256 static struct wsi_wl_display *
 257 wsi_wl_display_create(struct wsi_wayland *wsi, struct wl_display *wl_display)
 258 {
 259    struct wsi_wl_display *display =
 260       vk_alloc(wsi->alloc, sizeof(*display), 8,
 261                VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
 262    if (!display)
 263       return NULL;
 264
 265    memset(display, 0, sizeof(*display));
 266
 267    display->display = wl_display;
 268    display->wsi_wl = wsi;
 269
 270    if (!u_vector_init(&display->formats, sizeof(VkFormat), 8))
 271       goto fail;
 272
 273    struct wl_registry *registry = wl_display_get_registry(wl_display);
 274    if (!registry)
 275       return NULL;
 276
 277    wl_registry_add_listener(registry, &registry_listener, display);
 278
 279    /* Round-rip to get the wl_drm global */
 280    wl_display_roundtrip(wl_display);
 281
 282    if (!display->drm)
 283       goto fail;
 284
 285    /* Round-rip to get wl_drm formats and capabilities */
 286    wl_display_roundtrip(wl_display);
 287
 288    /* We need prime support */
 289    if (!(display->capabilities & WL_DRM_CAPABILITY_PRIME))
 290       goto fail;
 291
 292    /* We don't need this anymore */
 293    wl_registry_destroy(registry);
 294
 295    return display;
 296
 297 fail:
 298    if (registry)
 299       wl_registry_destroy(registry);
 300
 301    wsi_wl_display_destroy(wsi, display);
 302    return NULL;
 303 }
 304
 305 static struct wsi_wl_display *
 306 wsi_wl_get_display(struct wsi_device *wsi_device,
 307                    struct wl_display *wl_display)
 308 {
 309    struct wsi_wayland *wsi =
 310       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 311
 312    pthread_mutex_lock(&wsi->mutex);
 313
 314    struct hash_entry *entry = _mesa_hash_table_search(wsi->displays,
 315                                                       wl_display);
 316    if (!entry) {
 317       /* We're about to make a bunch of blocking calls.  Let's drop the
 318        * mutex for now so we don't block up too badly.
 319        */
 320       pthread_mutex_unlock(&wsi->mutex);
 321
 322       struct wsi_wl_display *display = wsi_wl_display_create(wsi, wl_display);
 323       if (!display)
 324          return NULL;
 325
 326       pthread_mutex_lock(&wsi->mutex);
 327
 328       entry = _mesa_hash_table_search(wsi->displays, wl_display);
 329       if (entry) {
 330          /* Oops, someone raced us to it */
 331          wsi_wl_display_destroy(wsi, display);
 332       } else {
 333          entry = _mesa_hash_table_insert(wsi->displays, wl_display, display);
 334       }
 335    }
 336
 337    pthread_mutex_unlock(&wsi->mutex);
 338
 339    return entry->data;
 340 }
 341
 342 VkBool32
 343 wsi_wl_get_presentation_support(struct wsi_device *wsi_device,
 344                                 struct wl_display *wl_display)
 345 {
 346    return wsi_wl_get_display(wsi_device, wl_display) != NULL;
 347 }
 348
 349 static VkResult
 350 wsi_wl_surface_get_support(VkIcdSurfaceBase *surface,
 351                            struct wsi_device *wsi_device,
 352                            const VkAllocationCallbacks *alloc,
 353                            uint32_t queueFamilyIndex,
 354                            int local_fd,
 355                            VkBool32* pSupported)
 356 {
 357    *pSupported = true;
 358
 359    return VK_SUCCESS;
 360 }
 361
 362 static const VkPresentModeKHR present_modes[] = {
 363    VK_PRESENT_MODE_MAILBOX_KHR,
 364    VK_PRESENT_MODE_FIFO_KHR,
 365 };
 366
 367 static VkResult
 368 wsi_wl_surface_get_capabilities(VkIcdSurfaceBase *surface,
 369                                 VkSurfaceCapabilitiesKHR* caps)
 370 {
 371    /* For true mailbox mode, we need at least 4 images:
 372     *  1) One to scan out from
 373     *  2) One to have queued for scan-out
 374     *  3) One to be currently held by the Wayland compositor
 375     *  4) One to render to
 376     */
 377    caps->minImageCount = 4;
 378    /* There is no real maximum */
 379    caps->maxImageCount = 0;
 380
 381    caps->currentExtent = (VkExtent2D) { -1, -1 };
 382    caps->minImageExtent = (VkExtent2D) { 1, 1 };
 383    /* This is the maximum supported size on Intel */
 384    caps->maxImageExtent = (VkExtent2D) { 1 << 14, 1 << 14 };
 385    caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 386    caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 387    caps->maxImageArrayLayers = 1;
 388
 389    caps->supportedCompositeAlpha =
 390       VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
 391       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 392
 393    caps->supportedUsageFlags =
 394       VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 395       VK_IMAGE_USAGE_SAMPLED_BIT |
 396       VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 397       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 398
 399    return VK_SUCCESS;
 400 }
 401
 402 static VkResult
 403 wsi_wl_surface_get_formats(VkIcdSurfaceBase *icd_surface,
 404                            struct wsi_device *wsi_device,
 405                            uint32_t* pSurfaceFormatCount,
 406                            VkSurfaceFormatKHR* pSurfaceFormats)
 407 {
 408    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 409    struct wsi_wl_display *display =
 410       wsi_wl_get_display(wsi_device, surface->display);
 411    if (!display)
 412       return VK_ERROR_OUT_OF_HOST_MEMORY;
 413
 414    if (pSurfaceFormats == NULL) {
 415       *pSurfaceFormatCount = u_vector_length(&display->formats);
 416       return VK_SUCCESS;
 417    }
 418
 419    uint32_t count = 0;
 420    VkFormat *f;
 421    u_vector_foreach(f, &display->formats) {
 422       if (count == *pSurfaceFormatCount)
 423          return VK_INCOMPLETE;
 424
 425       pSurfaceFormats[count++] = (VkSurfaceFormatKHR) {
 426          .format = *f,
 427          /* TODO: We should get this from the compositor somehow */
 428          .colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR,
 429       };
 430    }
 431
 432    assert(*pSurfaceFormatCount <= count);
 433    *pSurfaceFormatCount = count;
 434
 435    return VK_SUCCESS;
 436 }
 437
 438 static VkResult
 439 wsi_wl_surface_get_present_modes(VkIcdSurfaceBase *surface,
 440                                  uint32_t* pPresentModeCount,
 441                                  VkPresentModeKHR* pPresentModes)
 442 {
 443    if (pPresentModes == NULL) {
 444       *pPresentModeCount = ARRAY_SIZE(present_modes);
 445       return VK_SUCCESS;
 446    }
 447
 448    *pPresentModeCount = MIN2(*pPresentModeCount, ARRAY_SIZE(present_modes));
 449    typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
 450
 451    if (*pPresentModeCount < ARRAY_SIZE(present_modes))
 452       return VK_INCOMPLETE;
 453    else
 454       return VK_SUCCESS;
 455 }
 456
 457 VkResult wsi_create_wl_surface(const VkAllocationCallbacks *pAllocator,
 458                                const VkWaylandSurfaceCreateInfoKHR *pCreateInfo,
 459                                VkSurfaceKHR *pSurface)
 460 {
 461    VkIcdSurfaceWayland *surface;
 462
 463    surface = vk_alloc(pAllocator, sizeof *surface, 8,
 464                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 465    if (surface == NULL)
 466       return VK_ERROR_OUT_OF_HOST_MEMORY;
 467
 468    surface->base.platform = VK_ICD_WSI_PLATFORM_WAYLAND;
 469    surface->display = pCreateInfo->display;
 470    surface->surface = pCreateInfo->surface;
 471
 472    *pSurface = VkIcdSurfaceBase_to_handle(&surface->base);
 473
 474    return VK_SUCCESS;
 475 }
 476
 477 struct wsi_wl_image {
 478    VkImage image;
 479    VkDeviceMemory memory;
 480    struct wl_buffer *                           buffer;
 481    bool                                         busy;
 482 };
 483
 484 struct wsi_wl_swapchain {
 485    struct wsi_swapchain                        base;
 486
 487    struct wsi_wl_display *                      display;
 488    struct wl_event_queue *                      queue;
 489    struct wl_surface *                          surface;
 490
 491    VkExtent2D                                   extent;
 492    VkFormat                                     vk_format;
 493    uint32_t                                     drm_format;
 494
 495    VkPresentModeKHR                             present_mode;
 496    bool                                         fifo_ready;
 497
 498    uint32_t                                     image_count;
 499    struct wsi_wl_image                          images[0];
 500 };
 501
 502 static VkResult
 503 wsi_wl_swapchain_get_images(struct wsi_swapchain *wsi_chain,
 504                             uint32_t *pCount, VkImage *pSwapchainImages)
 505 {
 506    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 507    uint32_t ret_count;
 508    VkResult result;
 509
 510    if (pSwapchainImages == NULL) {
 511       *pCount = chain->image_count;
 512       return VK_SUCCESS;
 513    }
 514
 515    result = VK_SUCCESS;
 516    ret_count = chain->image_count;
 517    if (chain->image_count > *pCount) {
 518      ret_count = *pCount;
 519      result = VK_INCOMPLETE;
 520    }
 521
 522    for (uint32_t i = 0; i < ret_count; i++)
 523       pSwapchainImages[i] = chain->images[i].image;
 524
 525    return result;
 526 }
 527
 528 static VkResult
 529 wsi_wl_swapchain_acquire_next_image(struct wsi_swapchain *wsi_chain,
 530                                     uint64_t timeout,
 531                                     VkSemaphore semaphore,
 532                                     uint32_t *image_index)
 533 {
 534    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 535
 536    int ret = wl_display_dispatch_queue_pending(chain->display->display,
 537                                                chain->queue);
 538    /* XXX: I'm not sure if out-of-date is the right error here.  If
 539     * wl_display_dispatch_queue_pending fails it most likely means we got
 540     * kicked by the server so this seems more-or-less correct.
 541     */
 542    if (ret < 0)
 543       return VK_ERROR_OUT_OF_DATE_KHR;
 544
 545    while (1) {
 546       for (uint32_t i = 0; i < chain->image_count; i++) {
 547          if (!chain->images[i].busy) {
 548             /* We found a non-busy image */
 549             *image_index = i;
 550             chain->images[i].busy = true;
 551             return VK_SUCCESS;
 552          }
 553       }
 554
 555       /* This time we do a blocking dispatch because we can't go
 556        * anywhere until we get an event.
 557        */
 558       int ret = wl_display_roundtrip_queue(chain->display->display,
 559                                            chain->queue);
 560       if (ret < 0)
 561          return VK_ERROR_OUT_OF_DATE_KHR;
 562    }
 563 }
 564
 565 static void
 566 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 567 {
 568    struct wsi_wl_swapchain *chain = data;
 569
 570    chain->fifo_ready = true;
 571
 572    wl_callback_destroy(callback);
 573 }
 574
 575 static const struct wl_callback_listener frame_listener = {
 576    frame_handle_done,
 577 };
 578
 579 static VkResult
 580 wsi_wl_swapchain_queue_present(struct wsi_swapchain *wsi_chain,
 581                                uint32_t image_index)
 582 {
 583    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 584
 585    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 586       while (!chain->fifo_ready) {
 587          int ret = wl_display_dispatch_queue(chain->display->display,
 588                                              chain->queue);
 589          if (ret < 0)
 590             return VK_ERROR_OUT_OF_DATE_KHR;
 591       }
 592    }
 593
 594    assert(image_index < chain->image_count);
 595    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 596    wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 597
 598    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 599       struct wl_callback *frame = wl_surface_frame(chain->surface);
 600       wl_proxy_set_queue((struct wl_proxy *)frame, chain->queue);
 601       wl_callback_add_listener(frame, &frame_listener, chain);
 602       chain->fifo_ready = false;
 603    }
 604
 605    chain->images[image_index].busy = true;
 606    wl_surface_commit(chain->surface);
 607    wl_display_flush(chain->display->display);
 608
 609    return VK_SUCCESS;
 610 }
 611
 612 static void
 613 buffer_handle_release(void *data, struct wl_buffer *buffer)
 614 {
 615    struct wsi_wl_image *image = data;
 616
 617    assert(image->buffer == buffer);
 618
 619    image->busy = false;
 620 }
 621
 622 static const struct wl_buffer_listener buffer_listener = {
 623    buffer_handle_release,
 624 };
 625
 626 static VkResult
 627 wsi_wl_image_init(struct wsi_wl_swapchain *chain,
 628                   struct wsi_wl_image *image,
 629                   const VkSwapchainCreateInfoKHR *pCreateInfo,
 630                   const VkAllocationCallbacks* pAllocator)
 631 {
 632    VkDevice vk_device = chain->base.device;
 633    VkResult result;
 634    int fd;
 635    uint32_t size;
 636    uint32_t row_pitch;
 637    uint32_t offset;
 638    result = chain->base.image_fns->create_wsi_image(vk_device,
 639                                                     pCreateInfo,
 640                                                     pAllocator,
 641                                                     &image->image,
 642                                                     &image->memory,
 643                                                     &size,
 644                                                     &offset,
 645                                                     &row_pitch,
 646                                                     &fd);
 647    if (result != VK_SUCCESS)
 648       return result;
 649
 650    image->buffer = wl_drm_create_prime_buffer(chain->display->drm,
 651                                               fd, /* name */
 652                                               chain->extent.width,
 653                                               chain->extent.height,
 654                                               chain->drm_format,
 655                                               offset,
 656                                               row_pitch,
 657                                               0, 0, 0, 0 /* unused */);
 658    wl_display_roundtrip(chain->display->display);
 659    close(fd);
 660
 661    if (!image->buffer)
 662       goto fail_image;
 663
 664    wl_proxy_set_queue((struct wl_proxy *)image->buffer, chain->queue);
 665    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 666
 667    return VK_SUCCESS;
 668
 669 fail_image:
 670    chain->base.image_fns->free_wsi_image(vk_device, pAllocator,
 671                                          image->image, image->memory);
 672
 673    return result;
 674 }
 675
 676 static VkResult
 677 wsi_wl_swapchain_destroy(struct wsi_swapchain *wsi_chain,
 678                          const VkAllocationCallbacks *pAllocator)
 679 {
 680    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 681
 682    for (uint32_t i = 0; i < chain->image_count; i++) {
 683       if (chain->images[i].buffer)
 684          chain->base.image_fns->free_wsi_image(chain->base.device, pAllocator,
 685                                                chain->images[i].image,
 686                                                chain->images[i].memory);
 687    }
 688
 689    vk_free(pAllocator, chain);
 690
 691    return VK_SUCCESS;
 692 }
 693
 694 static VkResult
 695 wsi_wl_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
 696                                 VkDevice device,
 697                                 struct wsi_device *wsi_device,
 698                                 const VkSwapchainCreateInfoKHR* pCreateInfo,
 699                                 const VkAllocationCallbacks* pAllocator,
 700                                 const struct wsi_image_fns *image_fns,
 701                                 struct wsi_swapchain **swapchain_out)
 702 {
 703    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 704    struct wsi_wl_swapchain *chain;
 705    VkResult result;
 706
 707    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
 708
 709    int num_images = pCreateInfo->minImageCount;
 710
 711    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 712    chain = vk_alloc(pAllocator, size, 8,
 713                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 714    if (chain == NULL)
 715       return VK_ERROR_OUT_OF_HOST_MEMORY;
 716
 717    bool alpha = pCreateInfo->compositeAlpha ==
 718                       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 719
 720    chain->base.device = device;
 721    chain->base.destroy = wsi_wl_swapchain_destroy;
 722    chain->base.get_images = wsi_wl_swapchain_get_images;
 723    chain->base.acquire_next_image = wsi_wl_swapchain_acquire_next_image;
 724    chain->base.queue_present = wsi_wl_swapchain_queue_present;
 725    chain->base.image_fns = image_fns;
 726    chain->base.present_mode = pCreateInfo->presentMode;
 727    chain->surface = surface->surface;
 728    chain->extent = pCreateInfo->imageExtent;
 729    chain->vk_format = pCreateInfo->imageFormat;
 730    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, alpha);
 731
 732    chain->fifo_ready = true;
 733
 734    chain->image_count = num_images;
 735
 736    /* Mark a bunch of stuff as NULL.  This way we can just call
 737     * destroy_swapchain for cleanup.
 738     */
 739    for (uint32_t i = 0; i < chain->image_count; i++)
 740       chain->images[i].buffer = NULL;
 741    chain->queue = NULL;
 742
 743    chain->display = wsi_wl_get_display(wsi_device,
 744                                        surface->display);
 745    if (!chain->display) {
 746       result = VK_ERROR_INITIALIZATION_FAILED;
 747       goto fail;
 748    }
 749
 750    chain->queue = wl_display_create_queue(chain->display->display);
 751    if (!chain->queue) {
 752       result = VK_ERROR_INITIALIZATION_FAILED;
 753       goto fail;
 754    }
 755
 756    for (uint32_t i = 0; i < chain->image_count; i++) {
 757       result = wsi_wl_image_init(chain, &chain->images[i],
 758                                  pCreateInfo, pAllocator);
 759       if (result != VK_SUCCESS)
 760          goto fail;
 761       chain->images[i].busy = false;
 762    }
 763
 764    *swapchain_out = &chain->base;
 765
 766    return VK_SUCCESS;
 767
 768 fail:
 769    wsi_wl_swapchain_destroy(&chain->base, pAllocator);
 770
 771    return result;
 772 }
 773
 774 VkResult
 775 wsi_wl_init_wsi(struct wsi_device *wsi_device,
 776                 const VkAllocationCallbacks *alloc,
 777                 VkPhysicalDevice physical_device,
 778                 const struct wsi_callbacks *cbs)
 779 {
 780    struct wsi_wayland *wsi;
 781    VkResult result;
 782
 783    wsi = vk_alloc(alloc, sizeof(*wsi), 8,
 784                    VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
 785    if (!wsi) {
 786       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 787       goto fail;
 788    }
 789
 790    wsi->physical_device = physical_device;
 791    wsi->alloc = alloc;
 792    wsi->cbs = cbs;
 793    int ret = pthread_mutex_init(&wsi->mutex, NULL);
 794    if (ret != 0) {
 795       if (ret == ENOMEM) {
 796          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 797       } else {
 798          /* FINISHME: Choose a better error. */
 799          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 800       }
 801
 802       goto fail_alloc;
 803    }
 804
 805    wsi->displays = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
 806                                            _mesa_key_pointer_equal);
 807    if (!wsi->displays) {
 808       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 809       goto fail_mutex;
 810    }
 811
 812    wsi->base.get_support = wsi_wl_surface_get_support;
 813    wsi->base.get_capabilities = wsi_wl_surface_get_capabilities;
 814    wsi->base.get_formats = wsi_wl_surface_get_formats;
 815    wsi->base.get_present_modes = wsi_wl_surface_get_present_modes;
 816    wsi->base.create_swapchain = wsi_wl_surface_create_swapchain;
 817
 818    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = &wsi->base;
 819
 820    return VK_SUCCESS;
 821
 822 fail_mutex:
 823    pthread_mutex_destroy(&wsi->mutex);
 824
 825 fail_alloc:
 826    vk_free(alloc, wsi);
 827 fail:
 828    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = NULL;
 829
 830    return result;
 831 }
 832
 833 void
 834 wsi_wl_finish_wsi(struct wsi_device *wsi_device,
 835                   const VkAllocationCallbacks *alloc)
 836 {
 837    struct wsi_wayland *wsi =
 838       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 839
 840    if (wsi) {
 841       struct hash_entry *entry;
 842       hash_table_foreach(wsi->displays, entry)
 843          wsi_wl_display_destroy(wsi, entry->data);
 844
 845       _mesa_hash_table_destroy(wsi->displays, NULL);
 846
 847       pthread_mutex_destroy(&wsi->mutex);
 848
 849       vk_free(alloc, wsi);
 850    }
 851 }