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       goto fail;
 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_registry;
 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_registry;
 292
 293    /* We don't need this anymore */
 294    wl_registry_destroy(registry);
 295
 296    return display;
 297
 298 fail_registry:
 299    if (registry)
 300       wl_registry_destroy(registry);
 301
 302 fail:
 303    wsi_wl_display_destroy(wsi, display);
 304    return NULL;
 305 }
 306
 307 static struct wsi_wl_display *
 308 wsi_wl_get_display(struct wsi_device *wsi_device,
 309                    struct wl_display *wl_display)
 310 {
 311    struct wsi_wayland *wsi =
 312       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 313
 314    pthread_mutex_lock(&wsi->mutex);
 315
 316    struct hash_entry *entry = _mesa_hash_table_search(wsi->displays,
 317                                                       wl_display);
 318    if (!entry) {
 319       /* We're about to make a bunch of blocking calls.  Let's drop the
 320        * mutex for now so we don't block up too badly.
 321        */
 322       pthread_mutex_unlock(&wsi->mutex);
 323
 324       struct wsi_wl_display *display = wsi_wl_display_create(wsi, wl_display);
 325       if (!display)
 326          return NULL;
 327
 328       pthread_mutex_lock(&wsi->mutex);
 329
 330       entry = _mesa_hash_table_search(wsi->displays, wl_display);
 331       if (entry) {
 332          /* Oops, someone raced us to it */
 333          wsi_wl_display_destroy(wsi, display);
 334       } else {
 335          entry = _mesa_hash_table_insert(wsi->displays, wl_display, display);
 336       }
 337    }
 338
 339    pthread_mutex_unlock(&wsi->mutex);
 340
 341    return entry->data;
 342 }
 343
 344 VkBool32
 345 wsi_wl_get_presentation_support(struct wsi_device *wsi_device,
 346                                 struct wl_display *wl_display)
 347 {
 348    return wsi_wl_get_display(wsi_device, wl_display) != NULL;
 349 }
 350
 351 static VkResult
 352 wsi_wl_surface_get_support(VkIcdSurfaceBase *surface,
 353                            struct wsi_device *wsi_device,
 354                            const VkAllocationCallbacks *alloc,
 355                            uint32_t queueFamilyIndex,
 356                            int local_fd,
 357                            bool can_handle_different_gpu,
 358                            VkBool32* pSupported)
 359 {
 360    *pSupported = true;
 361
 362    return VK_SUCCESS;
 363 }
 364
 365 static const VkPresentModeKHR present_modes[] = {
 366    VK_PRESENT_MODE_MAILBOX_KHR,
 367    VK_PRESENT_MODE_FIFO_KHR,
 368 };
 369
 370 static VkResult
 371 wsi_wl_surface_get_capabilities(VkIcdSurfaceBase *surface,
 372                                 VkSurfaceCapabilitiesKHR* caps)
 373 {
 374    /* For true mailbox mode, we need at least 4 images:
 375     *  1) One to scan out from
 376     *  2) One to have queued for scan-out
 377     *  3) One to be currently held by the Wayland compositor
 378     *  4) One to render to
 379     */
 380    caps->minImageCount = 4;
 381    /* There is no real maximum */
 382    caps->maxImageCount = 0;
 383
 384    caps->currentExtent = (VkExtent2D) { -1, -1 };
 385    caps->minImageExtent = (VkExtent2D) { 1, 1 };
 386    /* This is the maximum supported size on Intel */
 387    caps->maxImageExtent = (VkExtent2D) { 1 << 14, 1 << 14 };
 388    caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 389    caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 390    caps->maxImageArrayLayers = 1;
 391
 392    caps->supportedCompositeAlpha =
 393       VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
 394       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 395
 396    caps->supportedUsageFlags =
 397       VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 398       VK_IMAGE_USAGE_SAMPLED_BIT |
 399       VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 400       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 401
 402    return VK_SUCCESS;
 403 }
 404
 405 static VkResult
 406 wsi_wl_surface_get_capabilities2(VkIcdSurfaceBase *surface,
 407                                  const void *info_next,
 408                                  VkSurfaceCapabilities2KHR* caps)
 409 {
 410    assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR);
 411
 412    return wsi_wl_surface_get_capabilities(surface, &caps->surfaceCapabilities);
 413 }
 414
 415 static VkResult
 416 wsi_wl_surface_get_formats(VkIcdSurfaceBase *icd_surface,
 417                            struct wsi_device *wsi_device,
 418                            uint32_t* pSurfaceFormatCount,
 419                            VkSurfaceFormatKHR* pSurfaceFormats)
 420 {
 421    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 422    struct wsi_wl_display *display =
 423       wsi_wl_get_display(wsi_device, surface->display);
 424    if (!display)
 425       return VK_ERROR_OUT_OF_HOST_MEMORY;
 426
 427    VK_OUTARRAY_MAKE(out, pSurfaceFormats, pSurfaceFormatCount);
 428
 429    VkFormat *disp_fmt;
 430    u_vector_foreach(disp_fmt, &display->formats) {
 431       vk_outarray_append(&out, out_fmt) {
 432          out_fmt->format = *disp_fmt;
 433          out_fmt->colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 434       }
 435    }
 436
 437    return vk_outarray_status(&out);
 438 }
 439
 440 static VkResult
 441 wsi_wl_surface_get_formats2(VkIcdSurfaceBase *icd_surface,
 442                             struct wsi_device *wsi_device,
 443                             const void *info_next,
 444                             uint32_t* pSurfaceFormatCount,
 445                             VkSurfaceFormat2KHR* pSurfaceFormats)
 446 {
 447    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 448    struct wsi_wl_display *display =
 449       wsi_wl_get_display(wsi_device, surface->display);
 450    if (!display)
 451       return VK_ERROR_OUT_OF_HOST_MEMORY;
 452
 453    VK_OUTARRAY_MAKE(out, pSurfaceFormats, pSurfaceFormatCount);
 454
 455    VkFormat *disp_fmt;
 456    u_vector_foreach(disp_fmt, &display->formats) {
 457       vk_outarray_append(&out, out_fmt) {
 458          out_fmt->surfaceFormat.format = *disp_fmt;
 459          out_fmt->surfaceFormat.colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 460       }
 461    }
 462
 463    return vk_outarray_status(&out);
 464 }
 465
 466 static VkResult
 467 wsi_wl_surface_get_present_modes(VkIcdSurfaceBase *surface,
 468                                  uint32_t* pPresentModeCount,
 469                                  VkPresentModeKHR* pPresentModes)
 470 {
 471    if (pPresentModes == NULL) {
 472       *pPresentModeCount = ARRAY_SIZE(present_modes);
 473       return VK_SUCCESS;
 474    }
 475
 476    *pPresentModeCount = MIN2(*pPresentModeCount, ARRAY_SIZE(present_modes));
 477    typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
 478
 479    if (*pPresentModeCount < ARRAY_SIZE(present_modes))
 480       return VK_INCOMPLETE;
 481    else
 482       return VK_SUCCESS;
 483 }
 484
 485 VkResult wsi_create_wl_surface(const VkAllocationCallbacks *pAllocator,
 486                                const VkWaylandSurfaceCreateInfoKHR *pCreateInfo,
 487                                VkSurfaceKHR *pSurface)
 488 {
 489    VkIcdSurfaceWayland *surface;
 490
 491    surface = vk_alloc(pAllocator, sizeof *surface, 8,
 492                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 493    if (surface == NULL)
 494       return VK_ERROR_OUT_OF_HOST_MEMORY;
 495
 496    surface->base.platform = VK_ICD_WSI_PLATFORM_WAYLAND;
 497    surface->display = pCreateInfo->display;
 498    surface->surface = pCreateInfo->surface;
 499
 500    *pSurface = VkIcdSurfaceBase_to_handle(&surface->base);
 501
 502    return VK_SUCCESS;
 503 }
 504
 505 struct wsi_wl_image {
 506    VkImage image;
 507    VkDeviceMemory memory;
 508    struct wl_buffer *                           buffer;
 509    bool                                         busy;
 510 };
 511
 512 struct wsi_wl_swapchain {
 513    struct wsi_swapchain                        base;
 514
 515    struct wsi_wl_display *                      display;
 516    struct wl_event_queue *                      queue;
 517    struct wl_surface *                          surface;
 518    uint32_t                                     surface_version;
 519
 520    VkExtent2D                                   extent;
 521    VkFormat                                     vk_format;
 522    uint32_t                                     drm_format;
 523
 524    VkPresentModeKHR                             present_mode;
 525    bool                                         fifo_ready;
 526
 527    struct wsi_wl_image                          images[0];
 528 };
 529
 530 static VkResult
 531 wsi_wl_swapchain_get_images(struct wsi_swapchain *wsi_chain,
 532                             uint32_t *pCount, VkImage *pSwapchainImages)
 533 {
 534    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 535    uint32_t ret_count;
 536    VkResult result;
 537
 538    if (pSwapchainImages == NULL) {
 539       *pCount = chain->base.image_count;
 540       return VK_SUCCESS;
 541    }
 542
 543    result = VK_SUCCESS;
 544    ret_count = chain->base.image_count;
 545    if (chain->base.image_count > *pCount) {
 546      ret_count = *pCount;
 547      result = VK_INCOMPLETE;
 548    }
 549
 550    for (uint32_t i = 0; i < ret_count; i++)
 551       pSwapchainImages[i] = chain->images[i].image;
 552
 553    return result;
 554 }
 555
 556 static VkResult
 557 wsi_wl_swapchain_acquire_next_image(struct wsi_swapchain *wsi_chain,
 558                                     uint64_t timeout,
 559                                     VkSemaphore semaphore,
 560                                     uint32_t *image_index)
 561 {
 562    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 563
 564    int ret = wl_display_dispatch_queue_pending(chain->display->display,
 565                                                chain->queue);
 566    /* XXX: I'm not sure if out-of-date is the right error here.  If
 567     * wl_display_dispatch_queue_pending fails it most likely means we got
 568     * kicked by the server so this seems more-or-less correct.
 569     */
 570    if (ret < 0)
 571       return VK_ERROR_OUT_OF_DATE_KHR;
 572
 573    while (1) {
 574       for (uint32_t i = 0; i < chain->base.image_count; i++) {
 575          if (!chain->images[i].busy) {
 576             /* We found a non-busy image */
 577             *image_index = i;
 578             chain->images[i].busy = true;
 579             return VK_SUCCESS;
 580          }
 581       }
 582
 583       /* This time we do a blocking dispatch because we can't go
 584        * anywhere until we get an event.
 585        */
 586       int ret = wl_display_roundtrip_queue(chain->display->display,
 587                                            chain->queue);
 588       if (ret < 0)
 589          return VK_ERROR_OUT_OF_DATE_KHR;
 590    }
 591 }
 592
 593 static void
 594 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 595 {
 596    struct wsi_wl_swapchain *chain = data;
 597
 598    chain->fifo_ready = true;
 599
 600    wl_callback_destroy(callback);
 601 }
 602
 603 static const struct wl_callback_listener frame_listener = {
 604    frame_handle_done,
 605 };
 606
 607 static VkResult
 608 wsi_wl_swapchain_queue_present(struct wsi_swapchain *wsi_chain,
 609                                uint32_t image_index,
 610                                const VkPresentRegionKHR *damage)
 611 {
 612    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 613
 614    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 615       while (!chain->fifo_ready) {
 616          int ret = wl_display_dispatch_queue(chain->display->display,
 617                                              chain->queue);
 618          if (ret < 0)
 619             return VK_ERROR_OUT_OF_DATE_KHR;
 620       }
 621    }
 622
 623    assert(image_index < chain->base.image_count);
 624    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 625
 626    if (chain->surface_version >= 4 && damage &&
 627        damage->pRectangles && damage->rectangleCount > 0) {
 628       for (unsigned i = 0; i < damage->rectangleCount; i++) {
 629          const VkRectLayerKHR *rect = &damage->pRectangles[i];
 630          assert(rect->layer == 0);
 631          wl_surface_damage_buffer(chain->surface,
 632                                   rect->offset.x, rect->offset.y,
 633                                   rect->extent.width, rect->extent.height);
 634       }
 635    } else {
 636       wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 637    }
 638
 639    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 640       struct wl_callback *frame = wl_surface_frame(chain->surface);
 641       wl_proxy_set_queue((struct wl_proxy *)frame, chain->queue);
 642       wl_callback_add_listener(frame, &frame_listener, chain);
 643       chain->fifo_ready = false;
 644    }
 645
 646    chain->images[image_index].busy = true;
 647    wl_surface_commit(chain->surface);
 648    wl_display_flush(chain->display->display);
 649
 650    return VK_SUCCESS;
 651 }
 652
 653 static void
 654 buffer_handle_release(void *data, struct wl_buffer *buffer)
 655 {
 656    struct wsi_wl_image *image = data;
 657
 658    assert(image->buffer == buffer);
 659
 660    image->busy = false;
 661 }
 662
 663 static const struct wl_buffer_listener buffer_listener = {
 664    buffer_handle_release,
 665 };
 666
 667 static VkResult
 668 wsi_wl_image_init(struct wsi_wl_swapchain *chain,
 669                   struct wsi_wl_image *image,
 670                   const VkSwapchainCreateInfoKHR *pCreateInfo,
 671                   const VkAllocationCallbacks* pAllocator)
 672 {
 673    VkDevice vk_device = chain->base.device;
 674    VkResult result;
 675    int fd;
 676    uint32_t size;
 677    uint32_t row_pitch;
 678    uint32_t offset;
 679    result = chain->base.image_fns->create_wsi_image(vk_device,
 680                                                     pCreateInfo,
 681                                                     pAllocator,
 682                                                     false,
 683                                                     false,
 684                                                     &image->image,
 685                                                     &image->memory,
 686                                                     &size,
 687                                                     &offset,
 688                                                     &row_pitch,
 689                                                     &fd);
 690    if (result != VK_SUCCESS)
 691       return result;
 692
 693    image->buffer = wl_drm_create_prime_buffer(chain->display->drm,
 694                                               fd, /* name */
 695                                               chain->extent.width,
 696                                               chain->extent.height,
 697                                               chain->drm_format,
 698                                               offset,
 699                                               row_pitch,
 700                                               0, 0, 0, 0 /* unused */);
 701    close(fd);
 702
 703    if (!image->buffer)
 704       goto fail_image;
 705
 706    wl_proxy_set_queue((struct wl_proxy *)image->buffer, chain->queue);
 707    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 708
 709    return VK_SUCCESS;
 710
 711 fail_image:
 712    chain->base.image_fns->free_wsi_image(vk_device, pAllocator,
 713                                          image->image, image->memory);
 714
 715    return result;
 716 }
 717
 718 static VkResult
 719 wsi_wl_swapchain_destroy(struct wsi_swapchain *wsi_chain,
 720                          const VkAllocationCallbacks *pAllocator)
 721 {
 722    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 723
 724    for (uint32_t i = 0; i < chain->base.image_count; i++) {
 725       if (chain->images[i].buffer)
 726          chain->base.image_fns->free_wsi_image(chain->base.device, pAllocator,
 727                                                chain->images[i].image,
 728                                                chain->images[i].memory);
 729    }
 730
 731    vk_free(pAllocator, chain);
 732
 733    return VK_SUCCESS;
 734 }
 735
 736 static VkResult
 737 wsi_wl_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
 738                                 VkDevice device,
 739                                 struct wsi_device *wsi_device,
 740                                 int local_fd,
 741                                 const VkSwapchainCreateInfoKHR* pCreateInfo,
 742                                 const VkAllocationCallbacks* pAllocator,
 743                                 const struct wsi_image_fns *image_fns,
 744                                 struct wsi_swapchain **swapchain_out)
 745 {
 746    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 747    struct wsi_wl_swapchain *chain;
 748    VkResult result;
 749
 750    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
 751
 752    int num_images = pCreateInfo->minImageCount;
 753
 754    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 755    chain = vk_alloc(pAllocator, size, 8,
 756                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 757    if (chain == NULL)
 758       return VK_ERROR_OUT_OF_HOST_MEMORY;
 759
 760    bool alpha = pCreateInfo->compositeAlpha ==
 761                       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 762
 763    chain->base.device = device;
 764    chain->base.destroy = wsi_wl_swapchain_destroy;
 765    chain->base.get_images = wsi_wl_swapchain_get_images;
 766    chain->base.acquire_next_image = wsi_wl_swapchain_acquire_next_image;
 767    chain->base.queue_present = wsi_wl_swapchain_queue_present;
 768    chain->base.image_fns = image_fns;
 769    chain->base.present_mode = pCreateInfo->presentMode;
 770    chain->base.image_count = num_images;
 771    chain->base.needs_linear_copy = false;
 772    chain->surface = surface->surface;
 773    chain->surface_version = wl_proxy_get_version((void *)surface->surface);
 774    chain->extent = pCreateInfo->imageExtent;
 775    chain->vk_format = pCreateInfo->imageFormat;
 776    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, alpha);
 777
 778    chain->fifo_ready = true;
 779
 780    /* Mark a bunch of stuff as NULL.  This way we can just call
 781     * destroy_swapchain for cleanup.
 782     */
 783    for (uint32_t i = 0; i < chain->base.image_count; i++)
 784       chain->images[i].buffer = NULL;
 785    chain->queue = NULL;
 786
 787    chain->display = wsi_wl_get_display(wsi_device,
 788                                        surface->display);
 789    if (!chain->display) {
 790       result = VK_ERROR_INITIALIZATION_FAILED;
 791       goto fail;
 792    }
 793
 794    chain->queue = wl_display_create_queue(chain->display->display);
 795    if (!chain->queue) {
 796       result = VK_ERROR_INITIALIZATION_FAILED;
 797       goto fail;
 798    }
 799
 800    for (uint32_t i = 0; i < chain->base.image_count; i++) {
 801       result = wsi_wl_image_init(chain, &chain->images[i],
 802                                  pCreateInfo, pAllocator);
 803       if (result != VK_SUCCESS)
 804          goto fail;
 805       chain->images[i].busy = false;
 806    }
 807
 808    *swapchain_out = &chain->base;
 809
 810    return VK_SUCCESS;
 811
 812 fail:
 813    wsi_wl_swapchain_destroy(&chain->base, pAllocator);
 814
 815    return result;
 816 }
 817
 818 VkResult
 819 wsi_wl_init_wsi(struct wsi_device *wsi_device,
 820                 const VkAllocationCallbacks *alloc,
 821                 VkPhysicalDevice physical_device,
 822                 const struct wsi_callbacks *cbs)
 823 {
 824    struct wsi_wayland *wsi;
 825    VkResult result;
 826
 827    wsi = vk_alloc(alloc, sizeof(*wsi), 8,
 828                    VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
 829    if (!wsi) {
 830       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 831       goto fail;
 832    }
 833
 834    wsi->physical_device = physical_device;
 835    wsi->alloc = alloc;
 836    wsi->cbs = cbs;
 837    int ret = pthread_mutex_init(&wsi->mutex, NULL);
 838    if (ret != 0) {
 839       if (ret == ENOMEM) {
 840          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 841       } else {
 842          /* FINISHME: Choose a better error. */
 843          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 844       }
 845
 846       goto fail_alloc;
 847    }
 848
 849    wsi->displays = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
 850                                            _mesa_key_pointer_equal);
 851    if (!wsi->displays) {
 852       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 853       goto fail_mutex;
 854    }
 855
 856    wsi->base.get_support = wsi_wl_surface_get_support;
 857    wsi->base.get_capabilities = wsi_wl_surface_get_capabilities;
 858    wsi->base.get_capabilities2 = wsi_wl_surface_get_capabilities2;
 859    wsi->base.get_formats = wsi_wl_surface_get_formats;
 860    wsi->base.get_formats2 = wsi_wl_surface_get_formats2;
 861    wsi->base.get_present_modes = wsi_wl_surface_get_present_modes;
 862    wsi->base.create_swapchain = wsi_wl_surface_create_swapchain;
 863
 864    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = &wsi->base;
 865
 866    return VK_SUCCESS;
 867
 868 fail_mutex:
 869    pthread_mutex_destroy(&wsi->mutex);
 870
 871 fail_alloc:
 872    vk_free(alloc, wsi);
 873 fail:
 874    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = NULL;
 875
 876    return result;
 877 }
 878
 879 void
 880 wsi_wl_finish_wsi(struct wsi_device *wsi_device,
 881                   const VkAllocationCallbacks *alloc)
 882 {
 883    struct wsi_wayland *wsi =
 884       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 885
 886    if (wsi) {
 887       struct hash_entry *entry;
 888       hash_table_foreach(wsi->displays, entry)
 889          wsi_wl_display_destroy(wsi, entry->data);
 890
 891       _mesa_hash_table_destroy(wsi->displays, NULL);
 892
 893       pthread_mutex_destroy(&wsi->mutex);
 894
 895       vk_free(alloc, wsi);
 896    }
 897 }