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                            VkBool32* pSupported)
 355 {
 356    *pSupported = true;
 357
 358    return VK_SUCCESS;
 359 }
 360
 361 static const VkPresentModeKHR present_modes[] = {
 362    VK_PRESENT_MODE_MAILBOX_KHR,
 363    VK_PRESENT_MODE_FIFO_KHR,
 364 };
 365
 366 static VkResult
 367 wsi_wl_surface_get_capabilities(VkIcdSurfaceBase *surface,
 368                                 VkSurfaceCapabilitiesKHR* caps)
 369 {
 370    /* For true mailbox mode, we need at least 4 images:
 371     *  1) One to scan out from
 372     *  2) One to have queued for scan-out
 373     *  3) One to be currently held by the Wayland compositor
 374     *  4) One to render to
 375     */
 376    caps->minImageCount = 4;
 377    /* There is no real maximum */
 378    caps->maxImageCount = 0;
 379
 380    caps->currentExtent = (VkExtent2D) { -1, -1 };
 381    caps->minImageExtent = (VkExtent2D) { 1, 1 };
 382    caps->maxImageExtent = (VkExtent2D) { INT16_MAX, INT16_MAX };
 383    caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 384    caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 385    caps->maxImageArrayLayers = 1;
 386
 387    caps->supportedCompositeAlpha =
 388       VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
 389       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 390
 391    caps->supportedUsageFlags =
 392       VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 393       VK_IMAGE_USAGE_SAMPLED_BIT |
 394       VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 395       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 396
 397    return VK_SUCCESS;
 398 }
 399
 400 static VkResult
 401 wsi_wl_surface_get_formats(VkIcdSurfaceBase *icd_surface,
 402                            struct wsi_device *wsi_device,
 403                            uint32_t* pSurfaceFormatCount,
 404                            VkSurfaceFormatKHR* pSurfaceFormats)
 405 {
 406    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 407    struct wsi_wl_display *display =
 408       wsi_wl_get_display(wsi_device, surface->display);
 409    if (!display)
 410       return VK_ERROR_OUT_OF_HOST_MEMORY;
 411
 412    uint32_t count = u_vector_length(&display->formats);
 413
 414    if (pSurfaceFormats == NULL) {
 415       *pSurfaceFormatCount = count;
 416       return VK_SUCCESS;
 417    }
 418
 419    assert(*pSurfaceFormatCount >= count);
 420    *pSurfaceFormatCount = count;
 421
 422    VkFormat *f;
 423    u_vector_foreach(f, &display->formats) {
 424       *(pSurfaceFormats++) = (VkSurfaceFormatKHR) {
 425          .format = *f,
 426          /* TODO: We should get this from the compositor somehow */
 427          .colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR,
 428       };
 429    }
 430
 431    return VK_SUCCESS;
 432 }
 433
 434 static VkResult
 435 wsi_wl_surface_get_present_modes(VkIcdSurfaceBase *surface,
 436                                  uint32_t* pPresentModeCount,
 437                                  VkPresentModeKHR* pPresentModes)
 438 {
 439    if (pPresentModes == NULL) {
 440       *pPresentModeCount = ARRAY_SIZE(present_modes);
 441       return VK_SUCCESS;
 442    }
 443
 444    assert(*pPresentModeCount >= ARRAY_SIZE(present_modes));
 445    typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
 446    *pPresentModeCount = ARRAY_SIZE(present_modes);
 447
 448    return VK_SUCCESS;
 449 }
 450
 451 VkResult wsi_create_wl_surface(const VkAllocationCallbacks *pAllocator,
 452                                const VkWaylandSurfaceCreateInfoKHR *pCreateInfo,
 453                                VkSurfaceKHR *pSurface)
 454 {
 455    VkIcdSurfaceWayland *surface;
 456
 457    surface = vk_alloc(pAllocator, sizeof *surface, 8,
 458                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 459    if (surface == NULL)
 460       return VK_ERROR_OUT_OF_HOST_MEMORY;
 461
 462    surface->base.platform = VK_ICD_WSI_PLATFORM_WAYLAND;
 463    surface->display = pCreateInfo->display;
 464    surface->surface = pCreateInfo->surface;
 465
 466    *pSurface = _VkIcdSurfaceBase_to_handle(&surface->base);
 467
 468    return VK_SUCCESS;
 469 }
 470
 471 struct wsi_wl_image {
 472    VkImage image;
 473    VkDeviceMemory memory;
 474    struct wl_buffer *                           buffer;
 475    bool                                         busy;
 476 };
 477
 478 struct wsi_wl_swapchain {
 479    struct wsi_swapchain                        base;
 480
 481    struct wsi_wl_display *                      display;
 482    struct wl_event_queue *                      queue;
 483    struct wl_surface *                          surface;
 484
 485    VkExtent2D                                   extent;
 486    VkFormat                                     vk_format;
 487    uint32_t                                     drm_format;
 488
 489    VkPresentModeKHR                             present_mode;
 490    bool                                         fifo_ready;
 491
 492    uint32_t                                     image_count;
 493    struct wsi_wl_image                          images[0];
 494 };
 495
 496 static VkResult
 497 wsi_wl_swapchain_get_images(struct wsi_swapchain *wsi_chain,
 498                             uint32_t *pCount, VkImage *pSwapchainImages)
 499 {
 500    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 501    uint32_t ret_count;
 502    VkResult result;
 503
 504    if (pSwapchainImages == NULL) {
 505       *pCount = chain->image_count;
 506       return VK_SUCCESS;
 507    }
 508
 509    result = VK_SUCCESS;
 510    ret_count = chain->image_count;
 511    if (chain->image_count > *pCount) {
 512      ret_count = *pCount;
 513      result = VK_INCOMPLETE;
 514    }
 515
 516    for (uint32_t i = 0; i < ret_count; i++)
 517       pSwapchainImages[i] = chain->images[i].image;
 518
 519    return result;
 520 }
 521
 522 static VkResult
 523 wsi_wl_swapchain_acquire_next_image(struct wsi_swapchain *wsi_chain,
 524                                     uint64_t timeout,
 525                                     VkSemaphore semaphore,
 526                                     uint32_t *image_index)
 527 {
 528    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 529
 530    int ret = wl_display_dispatch_queue_pending(chain->display->display,
 531                                                chain->queue);
 532    /* XXX: I'm not sure if out-of-date is the right error here.  If
 533     * wl_display_dispatch_queue_pending fails it most likely means we got
 534     * kicked by the server so this seems more-or-less correct.
 535     */
 536    if (ret < 0)
 537       return VK_ERROR_OUT_OF_DATE_KHR;
 538
 539    while (1) {
 540       for (uint32_t i = 0; i < chain->image_count; i++) {
 541          if (!chain->images[i].busy) {
 542             /* We found a non-busy image */
 543             *image_index = i;
 544             chain->images[i].busy = true;
 545             return VK_SUCCESS;
 546          }
 547       }
 548
 549       /* This time we do a blocking dispatch because we can't go
 550        * anywhere until we get an event.
 551        */
 552       int ret = wl_display_roundtrip_queue(chain->display->display,
 553                                            chain->queue);
 554       if (ret < 0)
 555          return VK_ERROR_OUT_OF_DATE_KHR;
 556    }
 557 }
 558
 559 static void
 560 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 561 {
 562    struct wsi_wl_swapchain *chain = data;
 563
 564    chain->fifo_ready = true;
 565
 566    wl_callback_destroy(callback);
 567 }
 568
 569 static const struct wl_callback_listener frame_listener = {
 570    frame_handle_done,
 571 };
 572
 573 static VkResult
 574 wsi_wl_swapchain_queue_present(struct wsi_swapchain *wsi_chain,
 575                                uint32_t image_index)
 576 {
 577    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 578
 579    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 580       while (!chain->fifo_ready) {
 581          int ret = wl_display_dispatch_queue(chain->display->display,
 582                                              chain->queue);
 583          if (ret < 0)
 584             return VK_ERROR_OUT_OF_DATE_KHR;
 585       }
 586    }
 587
 588    assert(image_index < chain->image_count);
 589    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 590    wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 591
 592    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 593       struct wl_callback *frame = wl_surface_frame(chain->surface);
 594       wl_proxy_set_queue((struct wl_proxy *)frame, chain->queue);
 595       wl_callback_add_listener(frame, &frame_listener, chain);
 596       chain->fifo_ready = false;
 597    }
 598
 599    chain->images[image_index].busy = true;
 600    wl_surface_commit(chain->surface);
 601    wl_display_flush(chain->display->display);
 602
 603    return VK_SUCCESS;
 604 }
 605
 606 static void
 607 buffer_handle_release(void *data, struct wl_buffer *buffer)
 608 {
 609    struct wsi_wl_image *image = data;
 610
 611    assert(image->buffer == buffer);
 612
 613    image->busy = false;
 614 }
 615
 616 static const struct wl_buffer_listener buffer_listener = {
 617    buffer_handle_release,
 618 };
 619
 620 static VkResult
 621 wsi_wl_image_init(struct wsi_wl_swapchain *chain,
 622                   struct wsi_wl_image *image,
 623                   const VkSwapchainCreateInfoKHR *pCreateInfo,
 624                   const VkAllocationCallbacks* pAllocator)
 625 {
 626    VkDevice vk_device = chain->base.device;
 627    VkResult result;
 628    int fd;
 629    uint32_t size;
 630    uint32_t row_pitch;
 631    uint32_t offset;
 632    result = chain->base.image_fns->create_wsi_image(vk_device,
 633                                                     pCreateInfo,
 634                                                     pAllocator,
 635                                                     &image->image,
 636                                                     &image->memory,
 637                                                     &size,
 638                                                     &offset,
 639                                                     &row_pitch,
 640                                                     &fd);
 641    if (result != VK_SUCCESS)
 642       return result;
 643
 644    image->buffer = wl_drm_create_prime_buffer(chain->display->drm,
 645                                               fd, /* name */
 646                                               chain->extent.width,
 647                                               chain->extent.height,
 648                                               chain->drm_format,
 649                                               offset,
 650                                               row_pitch,
 651                                               0, 0, 0, 0 /* unused */);
 652    wl_display_roundtrip(chain->display->display);
 653    close(fd);
 654
 655    if (!image->buffer)
 656       goto fail_image;
 657
 658    wl_proxy_set_queue((struct wl_proxy *)image->buffer, chain->queue);
 659    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 660
 661    return VK_SUCCESS;
 662
 663 fail_image:
 664    chain->base.image_fns->free_wsi_image(vk_device, pAllocator,
 665                                          image->image, image->memory);
 666
 667    return result;
 668 }
 669
 670 static VkResult
 671 wsi_wl_swapchain_destroy(struct wsi_swapchain *wsi_chain,
 672                          const VkAllocationCallbacks *pAllocator)
 673 {
 674    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 675
 676    for (uint32_t i = 0; i < chain->image_count; i++) {
 677       if (chain->images[i].buffer)
 678          chain->base.image_fns->free_wsi_image(chain->base.device, pAllocator,
 679                                                chain->images[i].image,
 680                                                chain->images[i].memory);
 681    }
 682
 683    vk_free(pAllocator, chain);
 684
 685    return VK_SUCCESS;
 686 }
 687
 688 static VkResult
 689 wsi_wl_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
 690                                 VkDevice device,
 691                                 struct wsi_device *wsi_device,
 692                                 const VkSwapchainCreateInfoKHR* pCreateInfo,
 693                                 const VkAllocationCallbacks* pAllocator,
 694                                 const struct wsi_image_fns *image_fns,
 695                                 struct wsi_swapchain **swapchain_out)
 696 {
 697    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 698    struct wsi_wl_swapchain *chain;
 699    VkResult result;
 700
 701    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
 702
 703    int num_images = pCreateInfo->minImageCount;
 704
 705    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 706    chain = vk_alloc(pAllocator, size, 8,
 707                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 708    if (chain == NULL)
 709       return VK_ERROR_OUT_OF_HOST_MEMORY;
 710
 711    bool alpha = pCreateInfo->compositeAlpha ==
 712                       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 713
 714    chain->base.device = device;
 715    chain->base.destroy = wsi_wl_swapchain_destroy;
 716    chain->base.get_images = wsi_wl_swapchain_get_images;
 717    chain->base.acquire_next_image = wsi_wl_swapchain_acquire_next_image;
 718    chain->base.queue_present = wsi_wl_swapchain_queue_present;
 719    chain->base.image_fns = image_fns;
 720    chain->base.present_mode = pCreateInfo->presentMode;
 721    chain->surface = surface->surface;
 722    chain->extent = pCreateInfo->imageExtent;
 723    chain->vk_format = pCreateInfo->imageFormat;
 724    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, alpha);
 725
 726    chain->fifo_ready = true;
 727
 728    chain->image_count = num_images;
 729
 730    /* Mark a bunch of stuff as NULL.  This way we can just call
 731     * destroy_swapchain for cleanup.
 732     */
 733    for (uint32_t i = 0; i < chain->image_count; i++)
 734       chain->images[i].buffer = NULL;
 735    chain->queue = NULL;
 736
 737    chain->display = wsi_wl_get_display(wsi_device,
 738                                        surface->display);
 739    if (!chain->display) {
 740       result = VK_ERROR_INITIALIZATION_FAILED;
 741       goto fail;
 742    }
 743
 744    chain->queue = wl_display_create_queue(chain->display->display);
 745    if (!chain->queue) {
 746       result = VK_ERROR_INITIALIZATION_FAILED;
 747       goto fail;
 748    }
 749
 750    for (uint32_t i = 0; i < chain->image_count; i++) {
 751       result = wsi_wl_image_init(chain, &chain->images[i],
 752                                  pCreateInfo, pAllocator);
 753       if (result != VK_SUCCESS)
 754          goto fail;
 755       chain->images[i].busy = false;
 756    }
 757
 758    *swapchain_out = &chain->base;
 759
 760    return VK_SUCCESS;
 761
 762 fail:
 763    wsi_wl_swapchain_destroy(&chain->base, pAllocator);
 764
 765    return result;
 766 }
 767
 768 VkResult
 769 wsi_wl_init_wsi(struct wsi_device *wsi_device,
 770                 const VkAllocationCallbacks *alloc,
 771                 VkPhysicalDevice physical_device,
 772                 const struct wsi_callbacks *cbs)
 773 {
 774    struct wsi_wayland *wsi;
 775    VkResult result;
 776
 777    wsi = vk_alloc(alloc, sizeof(*wsi), 8,
 778                    VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
 779    if (!wsi) {
 780       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 781       goto fail;
 782    }
 783
 784    wsi->physical_device = physical_device;
 785    wsi->alloc = alloc;
 786    wsi->cbs = cbs;
 787    int ret = pthread_mutex_init(&wsi->mutex, NULL);
 788    if (ret != 0) {
 789       if (ret == ENOMEM) {
 790          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 791       } else {
 792          /* FINISHME: Choose a better error. */
 793          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 794       }
 795
 796       goto fail_alloc;
 797    }
 798
 799    wsi->displays = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
 800                                            _mesa_key_pointer_equal);
 801    if (!wsi->displays) {
 802       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 803       goto fail_mutex;
 804    }
 805
 806    wsi->base.get_support = wsi_wl_surface_get_support;
 807    wsi->base.get_capabilities = wsi_wl_surface_get_capabilities;
 808    wsi->base.get_formats = wsi_wl_surface_get_formats;
 809    wsi->base.get_present_modes = wsi_wl_surface_get_present_modes;
 810    wsi->base.create_swapchain = wsi_wl_surface_create_swapchain;
 811
 812    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = &wsi->base;
 813
 814    return VK_SUCCESS;
 815
 816 fail_mutex:
 817    pthread_mutex_destroy(&wsi->mutex);
 818
 819 fail_alloc:
 820    vk_free(alloc, wsi);
 821 fail:
 822    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = NULL;
 823
 824    return result;
 825 }
 826
 827 void
 828 wsi_wl_finish_wsi(struct wsi_device *wsi_device,
 829                   const VkAllocationCallbacks *alloc)
 830 {
 831    struct wsi_wayland *wsi =
 832       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 833
 834    if (wsi) {
 835       struct hash_entry *entry;
 836       hash_table_foreach(wsi->displays, entry)
 837          wsi_wl_display_destroy(wsi, entry->data);
 838
 839       _mesa_hash_table_destroy(wsi->displays, NULL);
 840
 841       pthread_mutex_destroy(&wsi->mutex);
 842
 843       vk_free(alloc, wsi);
 844    }
 845 }