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
  26 #include <assert.h>
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <unistd.h>
  30 #include <errno.h>
  31 #include <string.h>
  32 #include <pthread.h>
  33
  34 #include "util/vk_util.h"
  35 #include "wsi_common_wayland.h"
  36 #include "wayland-drm-client-protocol.h"
  37
  38 #include <util/hash_table.h>
  39 #include <util/u_vector.h>
  40
  41 #define typed_memcpy(dest, src, count) ({ \
  42    STATIC_ASSERT(sizeof(*src) == sizeof(*dest)); \
  43    memcpy((dest), (src), (count) * sizeof(*(src))); \
  44 })
  45
  46 struct wsi_wayland;
  47
  48 struct wsi_wl_display {
  49    struct wl_display *                          display;
  50    struct wl_drm *                              drm;
  51
  52    struct wsi_wayland *wsi_wl;
  53    /* Vector of VkFormats supported */
  54    struct u_vector                            formats;
  55
  56    uint32_t                                     capabilities;
  57 };
  58
  59 struct wsi_wayland {
  60    struct wsi_interface                     base;
  61
  62    const VkAllocationCallbacks *alloc;
  63    VkPhysicalDevice physical_device;
  64
  65    pthread_mutex_t                              mutex;
  66    /* Hash table of wl_display -> wsi_wl_display mappings */
  67    struct hash_table *                          displays;
  68
  69    const struct wsi_callbacks *cbs;
  70 };
  71
  72 static void
  73 wsi_wl_display_add_vk_format(struct wsi_wl_display *display, VkFormat format)
  74 {
  75    /* Don't add a format that's already in the list */
  76    VkFormat *f;
  77    u_vector_foreach(f, &display->formats)
  78       if (*f == format)
  79          return;
  80
  81    /* Don't add formats that aren't renderable. */
  82    VkFormatProperties props;
  83
  84    display->wsi_wl->cbs->get_phys_device_format_properties(display->wsi_wl->physical_device,
  85                                                            format, &props);
  86    if (!(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
  87       return;
  88
  89    f = u_vector_add(&display->formats);
  90    if (f)
  91       *f = format;
  92 }
  93
  94 static void
  95 drm_handle_device(void *data, struct wl_drm *drm, const char *name)
  96 {
  97    fprintf(stderr, "wl_drm.device(%s)\n", name);
  98 }
  99
 100 static uint32_t
 101 wl_drm_format_for_vk_format(VkFormat vk_format, bool alpha)
 102 {
 103    switch (vk_format) {
 104    /* TODO: Figure out what all the formats mean and make this table
 105     * correct.
 106     */
 107 #if 0
 108    case VK_FORMAT_R4G4B4A4_UNORM:
 109       return alpha ? WL_DRM_FORMAT_ABGR4444 : WL_DRM_FORMAT_XBGR4444;
 110    case VK_FORMAT_R5G6B5_UNORM:
 111       return WL_DRM_FORMAT_BGR565;
 112    case VK_FORMAT_R5G5B5A1_UNORM:
 113       return alpha ? WL_DRM_FORMAT_ABGR1555 : WL_DRM_FORMAT_XBGR1555;
 114    case VK_FORMAT_R8G8B8_UNORM:
 115       return WL_DRM_FORMAT_XBGR8888;
 116    case VK_FORMAT_R8G8B8A8_UNORM:
 117       return alpha ? WL_DRM_FORMAT_ABGR8888 : WL_DRM_FORMAT_XBGR8888;
 118    case VK_FORMAT_R10G10B10A2_UNORM:
 119       return alpha ? WL_DRM_FORMAT_ABGR2101010 : WL_DRM_FORMAT_XBGR2101010;
 120    case VK_FORMAT_B4G4R4A4_UNORM:
 121       return alpha ? WL_DRM_FORMAT_ARGB4444 : WL_DRM_FORMAT_XRGB4444;
 122    case VK_FORMAT_B5G6R5_UNORM:
 123       return WL_DRM_FORMAT_RGB565;
 124    case VK_FORMAT_B5G5R5A1_UNORM:
 125       return alpha ? WL_DRM_FORMAT_XRGB1555 : WL_DRM_FORMAT_XRGB1555;
 126 #endif
 127    case VK_FORMAT_B8G8R8_UNORM:
 128    case VK_FORMAT_B8G8R8_SRGB:
 129       return WL_DRM_FORMAT_BGRX8888;
 130    case VK_FORMAT_B8G8R8A8_UNORM:
 131    case VK_FORMAT_B8G8R8A8_SRGB:
 132       return alpha ? WL_DRM_FORMAT_ARGB8888 : WL_DRM_FORMAT_XRGB8888;
 133 #if 0
 134    case VK_FORMAT_B10G10R10A2_UNORM:
 135       return alpha ? WL_DRM_FORMAT_ARGB2101010 : WL_DRM_FORMAT_XRGB2101010;
 136 #endif
 137
 138    default:
 139       assert(!"Unsupported Vulkan format");
 140       return 0;
 141    }
 142 }
 143
 144 static void
 145 drm_handle_format(void *data, struct wl_drm *drm, uint32_t wl_format)
 146 {
 147    struct wsi_wl_display *display = data;
 148
 149    switch (wl_format) {
 150 #if 0
 151    case WL_DRM_FORMAT_ABGR4444:
 152    case WL_DRM_FORMAT_XBGR4444:
 153       wsi_wl_display_add_vk_format(display, VK_FORMAT_R4G4B4A4_UNORM);
 154       break;
 155    case WL_DRM_FORMAT_BGR565:
 156       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G6B5_UNORM);
 157       break;
 158    case WL_DRM_FORMAT_ABGR1555:
 159    case WL_DRM_FORMAT_XBGR1555:
 160       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G5B5A1_UNORM);
 161       break;
 162    case WL_DRM_FORMAT_XBGR8888:
 163       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8_UNORM);
 164       /* fallthrough */
 165    case WL_DRM_FORMAT_ABGR8888:
 166       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8A8_UNORM);
 167       break;
 168    case WL_DRM_FORMAT_ABGR2101010:
 169    case WL_DRM_FORMAT_XBGR2101010:
 170       wsi_wl_display_add_vk_format(display, VK_FORMAT_R10G10B10A2_UNORM);
 171       break;
 172    case WL_DRM_FORMAT_ARGB4444:
 173    case WL_DRM_FORMAT_XRGB4444:
 174       wsi_wl_display_add_vk_format(display, VK_FORMAT_B4G4R4A4_UNORM);
 175       break;
 176    case WL_DRM_FORMAT_RGB565:
 177       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G6R5_UNORM);
 178       break;
 179    case WL_DRM_FORMAT_ARGB1555:
 180    case WL_DRM_FORMAT_XRGB1555:
 181       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G5R5A1_UNORM);
 182       break;
 183 #endif
 184    case WL_DRM_FORMAT_XRGB8888:
 185       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8_SRGB);
 186       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8_UNORM);
 187       /* fallthrough */
 188    case WL_DRM_FORMAT_ARGB8888:
 189       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_SRGB);
 190       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_UNORM);
 191       break;
 192 #if 0
 193    case WL_DRM_FORMAT_ARGB2101010:
 194    case WL_DRM_FORMAT_XRGB2101010:
 195       wsi_wl_display_add_vk_format(display, VK_FORMAT_B10G10R10A2_UNORM);
 196       break;
 197 #endif
 198    }
 199 }
 200
 201 static void
 202 drm_handle_authenticated(void *data, struct wl_drm *drm)
 203 {
 204 }
 205
 206 static void
 207 drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t capabilities)
 208 {
 209    struct wsi_wl_display *display = data;
 210
 211    display->capabilities = capabilities;
 212 }
 213
 214 static const struct wl_drm_listener drm_listener = {
 215    drm_handle_device,
 216    drm_handle_format,
 217    drm_handle_authenticated,
 218    drm_handle_capabilities,
 219 };
 220
 221 static void
 222 registry_handle_global(void *data, struct wl_registry *registry,
 223                        uint32_t name, const char *interface, uint32_t version)
 224 {
 225    struct wsi_wl_display *display = data;
 226
 227    if (strcmp(interface, "wl_drm") == 0) {
 228       assert(display->drm == NULL);
 229
 230       assert(version >= 2);
 231       display->drm = wl_registry_bind(registry, name, &wl_drm_interface, 2);
 232
 233       if (display->drm)
 234          wl_drm_add_listener(display->drm, &drm_listener, display);
 235    }
 236 }
 237
 238 static void
 239 registry_handle_global_remove(void *data, struct wl_registry *registry,
 240                               uint32_t name)
 241 { /* No-op */ }
 242
 243 static const struct wl_registry_listener registry_listener = {
 244    registry_handle_global,
 245    registry_handle_global_remove
 246 };
 247
 248 static void
 249 wsi_wl_display_destroy(struct wsi_wayland *wsi, struct wsi_wl_display *display)
 250 {
 251    u_vector_finish(&display->formats);
 252    if (display->drm)
 253       wl_drm_destroy(display->drm);
 254    vk_free(wsi->alloc, display);
 255 }
 256
 257 static struct wsi_wl_display *
 258 wsi_wl_display_create(struct wsi_wayland *wsi, struct wl_display *wl_display)
 259 {
 260    struct wsi_wl_display *display =
 261       vk_alloc(wsi->alloc, sizeof(*display), 8,
 262                VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
 263    if (!display)
 264       return NULL;
 265
 266    memset(display, 0, sizeof(*display));
 267
 268    display->display = wl_display;
 269    display->wsi_wl = wsi;
 270
 271    if (!u_vector_init(&display->formats, sizeof(VkFormat), 8))
 272       goto fail;
 273
 274    struct wl_registry *registry = wl_display_get_registry(wl_display);
 275    if (!registry)
 276       return NULL;
 277
 278    wl_registry_add_listener(registry, &registry_listener, display);
 279
 280    /* Round-rip to get the wl_drm global */
 281    wl_display_roundtrip(wl_display);
 282
 283    if (!display->drm)
 284       goto fail;
 285
 286    /* Round-rip to get wl_drm formats and capabilities */
 287    wl_display_roundtrip(wl_display);
 288
 289    /* We need prime support */
 290    if (!(display->capabilities & WL_DRM_CAPABILITY_PRIME))
 291       goto fail;
 292
 293    /* We don't need this anymore */
 294    wl_registry_destroy(registry);
 295
 296    return display;
 297
 298 fail:
 299    if (registry)
 300       wl_registry_destroy(registry);
 301
 302    wsi_wl_display_destroy(wsi, display);
 303    return NULL;
 304 }
 305
 306 static struct wsi_wl_display *
 307 wsi_wl_get_display(struct wsi_device *wsi_device,
 308                    struct wl_display *wl_display)
 309 {
 310    struct wsi_wayland *wsi =
 311       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 312
 313    pthread_mutex_lock(&wsi->mutex);
 314
 315    struct hash_entry *entry = _mesa_hash_table_search(wsi->displays,
 316                                                       wl_display);
 317    if (!entry) {
 318       /* We're about to make a bunch of blocking calls.  Let's drop the
 319        * mutex for now so we don't block up too badly.
 320        */
 321       pthread_mutex_unlock(&wsi->mutex);
 322
 323       struct wsi_wl_display *display = wsi_wl_display_create(wsi, wl_display);
 324       if (!display)
 325          return NULL;
 326
 327       pthread_mutex_lock(&wsi->mutex);
 328
 329       entry = _mesa_hash_table_search(wsi->displays, wl_display);
 330       if (entry) {
 331          /* Oops, someone raced us to it */
 332          wsi_wl_display_destroy(wsi, display);
 333       } else {
 334          entry = _mesa_hash_table_insert(wsi->displays, wl_display, display);
 335       }
 336    }
 337
 338    pthread_mutex_unlock(&wsi->mutex);
 339
 340    return entry->data;
 341 }
 342
 343 VkBool32
 344 wsi_wl_get_presentation_support(struct wsi_device *wsi_device,
 345                                 struct wl_display *wl_display)
 346 {
 347    return wsi_wl_get_display(wsi_device, wl_display) != NULL;
 348 }
 349
 350 static VkResult
 351 wsi_wl_surface_get_support(VkIcdSurfaceBase *surface,
 352                            struct wsi_device *wsi_device,
 353                            const VkAllocationCallbacks *alloc,
 354                            uint32_t queueFamilyIndex,
 355                            int local_fd,
 356                            bool can_handle_different_gpu,
 357                            VkBool32* pSupported)
 358 {
 359    *pSupported = true;
 360
 361    return VK_SUCCESS;
 362 }
 363
 364 static const VkPresentModeKHR present_modes[] = {
 365    VK_PRESENT_MODE_MAILBOX_KHR,
 366    VK_PRESENT_MODE_FIFO_KHR,
 367 };
 368
 369 static VkResult
 370 wsi_wl_surface_get_capabilities(VkIcdSurfaceBase *surface,
 371                                 VkSurfaceCapabilitiesKHR* caps)
 372 {
 373    /* For true mailbox mode, we need at least 4 images:
 374     *  1) One to scan out from
 375     *  2) One to have queued for scan-out
 376     *  3) One to be currently held by the Wayland compositor
 377     *  4) One to render to
 378     */
 379    caps->minImageCount = 4;
 380    /* There is no real maximum */
 381    caps->maxImageCount = 0;
 382
 383    caps->currentExtent = (VkExtent2D) { -1, -1 };
 384    caps->minImageExtent = (VkExtent2D) { 1, 1 };
 385    /* This is the maximum supported size on Intel */
 386    caps->maxImageExtent = (VkExtent2D) { 1 << 14, 1 << 14 };
 387    caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 388    caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 389    caps->maxImageArrayLayers = 1;
 390
 391    caps->supportedCompositeAlpha =
 392       VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
 393       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 394
 395    caps->supportedUsageFlags =
 396       VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 397       VK_IMAGE_USAGE_SAMPLED_BIT |
 398       VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 399       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 400
 401    return VK_SUCCESS;
 402 }
 403
 404 static VkResult
 405 wsi_wl_surface_get_formats(VkIcdSurfaceBase *icd_surface,
 406                            struct wsi_device *wsi_device,
 407                            uint32_t* pSurfaceFormatCount,
 408                            VkSurfaceFormatKHR* pSurfaceFormats)
 409 {
 410    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 411    struct wsi_wl_display *display =
 412       wsi_wl_get_display(wsi_device, surface->display);
 413    if (!display)
 414       return VK_ERROR_OUT_OF_HOST_MEMORY;
 415
 416    VK_OUTARRAY_MAKE(out, pSurfaceFormats, pSurfaceFormatCount);
 417
 418    VkFormat *disp_fmt;
 419    u_vector_foreach(disp_fmt, &display->formats) {
 420       vk_outarray_append(&out, out_fmt) {
 421          out_fmt->format = *disp_fmt;
 422          out_fmt->colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 423       }
 424    }
 425
 426    return vk_outarray_status(&out);
 427 }
 428
 429 static VkResult
 430 wsi_wl_surface_get_present_modes(VkIcdSurfaceBase *surface,
 431                                  uint32_t* pPresentModeCount,
 432                                  VkPresentModeKHR* pPresentModes)
 433 {
 434    if (pPresentModes == NULL) {
 435       *pPresentModeCount = ARRAY_SIZE(present_modes);
 436       return VK_SUCCESS;
 437    }
 438
 439    *pPresentModeCount = MIN2(*pPresentModeCount, ARRAY_SIZE(present_modes));
 440    typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
 441
 442    if (*pPresentModeCount < ARRAY_SIZE(present_modes))
 443       return VK_INCOMPLETE;
 444    else
 445       return VK_SUCCESS;
 446 }
 447
 448 VkResult wsi_create_wl_surface(const VkAllocationCallbacks *pAllocator,
 449                                const VkWaylandSurfaceCreateInfoKHR *pCreateInfo,
 450                                VkSurfaceKHR *pSurface)
 451 {
 452    VkIcdSurfaceWayland *surface;
 453
 454    surface = vk_alloc(pAllocator, sizeof *surface, 8,
 455                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 456    if (surface == NULL)
 457       return VK_ERROR_OUT_OF_HOST_MEMORY;
 458
 459    surface->base.platform = VK_ICD_WSI_PLATFORM_WAYLAND;
 460    surface->display = pCreateInfo->display;
 461    surface->surface = pCreateInfo->surface;
 462
 463    *pSurface = VkIcdSurfaceBase_to_handle(&surface->base);
 464
 465    return VK_SUCCESS;
 466 }
 467
 468 struct wsi_wl_image {
 469    VkImage image;
 470    VkDeviceMemory memory;
 471    struct wl_buffer *                           buffer;
 472    bool                                         busy;
 473 };
 474
 475 struct wsi_wl_swapchain {
 476    struct wsi_swapchain                        base;
 477
 478    struct wsi_wl_display *                      display;
 479    struct wl_event_queue *                      queue;
 480    struct wl_surface *                          surface;
 481    uint32_t                                     surface_version;
 482
 483    VkExtent2D                                   extent;
 484    VkFormat                                     vk_format;
 485    uint32_t                                     drm_format;
 486
 487    VkPresentModeKHR                             present_mode;
 488    bool                                         fifo_ready;
 489
 490    struct wsi_wl_image                          images[0];
 491 };
 492
 493 static VkResult
 494 wsi_wl_swapchain_get_images(struct wsi_swapchain *wsi_chain,
 495                             uint32_t *pCount, VkImage *pSwapchainImages)
 496 {
 497    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 498    uint32_t ret_count;
 499    VkResult result;
 500
 501    if (pSwapchainImages == NULL) {
 502       *pCount = chain->base.image_count;
 503       return VK_SUCCESS;
 504    }
 505
 506    result = VK_SUCCESS;
 507    ret_count = chain->base.image_count;
 508    if (chain->base.image_count > *pCount) {
 509      ret_count = *pCount;
 510      result = VK_INCOMPLETE;
 511    }
 512
 513    for (uint32_t i = 0; i < ret_count; i++)
 514       pSwapchainImages[i] = chain->images[i].image;
 515
 516    return result;
 517 }
 518
 519 static VkResult
 520 wsi_wl_swapchain_acquire_next_image(struct wsi_swapchain *wsi_chain,
 521                                     uint64_t timeout,
 522                                     VkSemaphore semaphore,
 523                                     uint32_t *image_index)
 524 {
 525    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 526
 527    int ret = wl_display_dispatch_queue_pending(chain->display->display,
 528                                                chain->queue);
 529    /* XXX: I'm not sure if out-of-date is the right error here.  If
 530     * wl_display_dispatch_queue_pending fails it most likely means we got
 531     * kicked by the server so this seems more-or-less correct.
 532     */
 533    if (ret < 0)
 534       return VK_ERROR_OUT_OF_DATE_KHR;
 535
 536    while (1) {
 537       for (uint32_t i = 0; i < chain->base.image_count; i++) {
 538          if (!chain->images[i].busy) {
 539             /* We found a non-busy image */
 540             *image_index = i;
 541             chain->images[i].busy = true;
 542             return VK_SUCCESS;
 543          }
 544       }
 545
 546       /* This time we do a blocking dispatch because we can't go
 547        * anywhere until we get an event.
 548        */
 549       int ret = wl_display_roundtrip_queue(chain->display->display,
 550                                            chain->queue);
 551       if (ret < 0)
 552          return VK_ERROR_OUT_OF_DATE_KHR;
 553    }
 554 }
 555
 556 static void
 557 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 558 {
 559    struct wsi_wl_swapchain *chain = data;
 560
 561    chain->fifo_ready = true;
 562
 563    wl_callback_destroy(callback);
 564 }
 565
 566 static const struct wl_callback_listener frame_listener = {
 567    frame_handle_done,
 568 };
 569
 570 static VkResult
 571 wsi_wl_swapchain_queue_present(struct wsi_swapchain *wsi_chain,
 572                                uint32_t image_index,
 573                                const VkPresentRegionKHR *damage)
 574 {
 575    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 576
 577    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 578       while (!chain->fifo_ready) {
 579          int ret = wl_display_dispatch_queue(chain->display->display,
 580                                              chain->queue);
 581          if (ret < 0)
 582             return VK_ERROR_OUT_OF_DATE_KHR;
 583       }
 584    }
 585
 586    assert(image_index < chain->base.image_count);
 587    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 588
 589    if (chain->surface_version >= 4 && damage &&
 590        damage->pRectangles && damage->rectangleCount > 0) {
 591       for (unsigned i = 0; i < damage->rectangleCount; i++) {
 592          const VkRectLayerKHR *rect = &damage->pRectangles[i];
 593          assert(rect->layer == 0);
 594          wl_surface_damage_buffer(chain->surface,
 595                                   rect->offset.x, rect->offset.y,
 596                                   rect->extent.width, rect->extent.height);
 597       }
 598    } else {
 599       wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 600    }
 601
 602    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 603       struct wl_callback *frame = wl_surface_frame(chain->surface);
 604       wl_proxy_set_queue((struct wl_proxy *)frame, chain->queue);
 605       wl_callback_add_listener(frame, &frame_listener, chain);
 606       chain->fifo_ready = false;
 607    }
 608
 609    chain->images[image_index].busy = true;
 610    wl_surface_commit(chain->surface);
 611    wl_display_flush(chain->display->display);
 612
 613    return VK_SUCCESS;
 614 }
 615
 616 static void
 617 buffer_handle_release(void *data, struct wl_buffer *buffer)
 618 {
 619    struct wsi_wl_image *image = data;
 620
 621    assert(image->buffer == buffer);
 622
 623    image->busy = false;
 624 }
 625
 626 static const struct wl_buffer_listener buffer_listener = {
 627    buffer_handle_release,
 628 };
 629
 630 static VkResult
 631 wsi_wl_image_init(struct wsi_wl_swapchain *chain,
 632                   struct wsi_wl_image *image,
 633                   const VkSwapchainCreateInfoKHR *pCreateInfo,
 634                   const VkAllocationCallbacks* pAllocator)
 635 {
 636    VkDevice vk_device = chain->base.device;
 637    VkResult result;
 638    int fd;
 639    uint32_t size;
 640    uint32_t row_pitch;
 641    uint32_t offset;
 642    result = chain->base.image_fns->create_wsi_image(vk_device,
 643                                                     pCreateInfo,
 644                                                     pAllocator,
 645                                                     false,
 646                                                     false,
 647                                                     &image->image,
 648                                                     &image->memory,
 649                                                     &size,
 650                                                     &offset,
 651                                                     &row_pitch,
 652                                                     &fd);
 653    if (result != VK_SUCCESS)
 654       return result;
 655
 656    image->buffer = wl_drm_create_prime_buffer(chain->display->drm,
 657                                               fd, /* name */
 658                                               chain->extent.width,
 659                                               chain->extent.height,
 660                                               chain->drm_format,
 661                                               offset,
 662                                               row_pitch,
 663                                               0, 0, 0, 0 /* unused */);
 664    wl_display_roundtrip(chain->display->display);
 665    close(fd);
 666
 667    if (!image->buffer)
 668       goto fail_image;
 669
 670    wl_proxy_set_queue((struct wl_proxy *)image->buffer, chain->queue);
 671    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 672
 673    return VK_SUCCESS;
 674
 675 fail_image:
 676    chain->base.image_fns->free_wsi_image(vk_device, pAllocator,
 677                                          image->image, image->memory);
 678
 679    return result;
 680 }
 681
 682 static VkResult
 683 wsi_wl_swapchain_destroy(struct wsi_swapchain *wsi_chain,
 684                          const VkAllocationCallbacks *pAllocator)
 685 {
 686    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 687
 688    for (uint32_t i = 0; i < chain->base.image_count; i++) {
 689       if (chain->images[i].buffer)
 690          chain->base.image_fns->free_wsi_image(chain->base.device, pAllocator,
 691                                                chain->images[i].image,
 692                                                chain->images[i].memory);
 693    }
 694
 695    vk_free(pAllocator, chain);
 696
 697    return VK_SUCCESS;
 698 }
 699
 700 static VkResult
 701 wsi_wl_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
 702                                 VkDevice device,
 703                                 struct wsi_device *wsi_device,
 704                                 int local_fd,
 705                                 const VkSwapchainCreateInfoKHR* pCreateInfo,
 706                                 const VkAllocationCallbacks* pAllocator,
 707                                 const struct wsi_image_fns *image_fns,
 708                                 struct wsi_swapchain **swapchain_out)
 709 {
 710    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 711    struct wsi_wl_swapchain *chain;
 712    VkResult result;
 713
 714    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
 715
 716    int num_images = pCreateInfo->minImageCount;
 717
 718    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 719    chain = vk_alloc(pAllocator, size, 8,
 720                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 721    if (chain == NULL)
 722       return VK_ERROR_OUT_OF_HOST_MEMORY;
 723
 724    bool alpha = pCreateInfo->compositeAlpha ==
 725                       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 726
 727    chain->base.device = device;
 728    chain->base.destroy = wsi_wl_swapchain_destroy;
 729    chain->base.get_images = wsi_wl_swapchain_get_images;
 730    chain->base.acquire_next_image = wsi_wl_swapchain_acquire_next_image;
 731    chain->base.queue_present = wsi_wl_swapchain_queue_present;
 732    chain->base.image_fns = image_fns;
 733    chain->base.present_mode = pCreateInfo->presentMode;
 734    chain->base.image_count = num_images;
 735    chain->base.needs_linear_copy = false;
 736    chain->surface = surface->surface;
 737    chain->surface_version = wl_proxy_get_version((void *)surface->surface);
 738    chain->extent = pCreateInfo->imageExtent;
 739    chain->vk_format = pCreateInfo->imageFormat;
 740    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, alpha);
 741
 742    chain->fifo_ready = true;
 743
 744    /* Mark a bunch of stuff as NULL.  This way we can just call
 745     * destroy_swapchain for cleanup.
 746     */
 747    for (uint32_t i = 0; i < chain->base.image_count; i++)
 748       chain->images[i].buffer = NULL;
 749    chain->queue = NULL;
 750
 751    chain->display = wsi_wl_get_display(wsi_device,
 752                                        surface->display);
 753    if (!chain->display) {
 754       result = VK_ERROR_INITIALIZATION_FAILED;
 755       goto fail;
 756    }
 757
 758    chain->queue = wl_display_create_queue(chain->display->display);
 759    if (!chain->queue) {
 760       result = VK_ERROR_INITIALIZATION_FAILED;
 761       goto fail;
 762    }
 763
 764    for (uint32_t i = 0; i < chain->base.image_count; i++) {
 765       result = wsi_wl_image_init(chain, &chain->images[i],
 766                                  pCreateInfo, pAllocator);
 767       if (result != VK_SUCCESS)
 768          goto fail;
 769       chain->images[i].busy = false;
 770    }
 771
 772    *swapchain_out = &chain->base;
 773
 774    return VK_SUCCESS;
 775
 776 fail:
 777    wsi_wl_swapchain_destroy(&chain->base, pAllocator);
 778
 779    return result;
 780 }
 781
 782 VkResult
 783 wsi_wl_init_wsi(struct wsi_device *wsi_device,
 784                 const VkAllocationCallbacks *alloc,
 785                 VkPhysicalDevice physical_device,
 786                 const struct wsi_callbacks *cbs)
 787 {
 788    struct wsi_wayland *wsi;
 789    VkResult result;
 790
 791    wsi = vk_alloc(alloc, sizeof(*wsi), 8,
 792                    VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
 793    if (!wsi) {
 794       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 795       goto fail;
 796    }
 797
 798    wsi->physical_device = physical_device;
 799    wsi->alloc = alloc;
 800    wsi->cbs = cbs;
 801    int ret = pthread_mutex_init(&wsi->mutex, NULL);
 802    if (ret != 0) {
 803       if (ret == ENOMEM) {
 804          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 805       } else {
 806          /* FINISHME: Choose a better error. */
 807          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 808       }
 809
 810       goto fail_alloc;
 811    }
 812
 813    wsi->displays = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
 814                                            _mesa_key_pointer_equal);
 815    if (!wsi->displays) {
 816       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 817       goto fail_mutex;
 818    }
 819
 820    wsi->base.get_support = wsi_wl_surface_get_support;
 821    wsi->base.get_capabilities = wsi_wl_surface_get_capabilities;
 822    wsi->base.get_formats = wsi_wl_surface_get_formats;
 823    wsi->base.get_present_modes = wsi_wl_surface_get_present_modes;
 824    wsi->base.create_swapchain = wsi_wl_surface_create_swapchain;
 825
 826    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = &wsi->base;
 827
 828    return VK_SUCCESS;
 829
 830 fail_mutex:
 831    pthread_mutex_destroy(&wsi->mutex);
 832
 833 fail_alloc:
 834    vk_free(alloc, wsi);
 835 fail:
 836    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = NULL;
 837
 838    return result;
 839 }
 840
 841 void
 842 wsi_wl_finish_wsi(struct wsi_device *wsi_device,
 843                   const VkAllocationCallbacks *alloc)
 844 {
 845    struct wsi_wayland *wsi =
 846       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 847
 848    if (wsi) {
 849       struct hash_entry *entry;
 850       hash_table_foreach(wsi->displays, entry)
 851          wsi_wl_display_destroy(wsi, entry->data);
 852
 853       _mesa_hash_table_destroy(wsi->displays, NULL);
 854
 855       pthread_mutex_destroy(&wsi->mutex);
 856
 857       vk_free(alloc, wsi);
 858    }
 859 }