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 <drm_fourcc.h>
  35
  36 #include "vk_util.h"
  37 #include "wsi_common_private.h"
  38 #include "wsi_common_wayland.h"
  39 #include "wayland-drm-client-protocol.h"
  40 #include "linux-dmabuf-unstable-v1-client-protocol.h"
  41
  42 #include <util/hash_table.h>
  43 #include <util/u_vector.h>
  44
  45 #define typed_memcpy(dest, src, count) ({ \
  46    STATIC_ASSERT(sizeof(*src) == sizeof(*dest)); \
  47    memcpy((dest), (src), (count) * sizeof(*(src))); \
  48 })
  49
  50 struct wsi_wayland;
  51
  52 struct wsi_wl_display {
  53    /* The real wl_display */
  54    struct wl_display *                          wl_display;
  55    /* Actually a proxy wrapper around the event queue */
  56    struct wl_display *                          wl_display_wrapper;
  57    struct wl_event_queue *                      queue;
  58    struct wl_drm *                              drm;
  59    struct zwp_linux_dmabuf_v1 *                 dmabuf;
  60
  61    struct wsi_wayland *wsi_wl;
  62    /* Vector of VkFormats supported */
  63    struct u_vector                            formats;
  64
  65    struct {
  66       struct u_vector                           argb8888;
  67       struct u_vector                           xrgb8888;
  68    } modifiers;
  69
  70    uint32_t                                     capabilities;
  71
  72    /* Only used for displays created by wsi_wl_display_create */
  73    uint32_t                                     refcount;
  74 };
  75
  76 struct wsi_wayland {
  77    struct wsi_interface                     base;
  78
  79    struct wsi_device *wsi;
  80
  81    const VkAllocationCallbacks *alloc;
  82    VkPhysicalDevice physical_device;
  83 };
  84
  85 static void
  86 wsi_wl_display_add_vk_format(struct wsi_wl_display *display, VkFormat format)
  87 {
  88    /* Don't add a format that's already in the list */
  89    VkFormat *f;
  90    u_vector_foreach(f, &display->formats)
  91       if (*f == format)
  92          return;
  93
  94    /* Don't add formats that aren't renderable. */
  95    VkFormatProperties props;
  96
  97    display->wsi_wl->wsi->GetPhysicalDeviceFormatProperties(display->wsi_wl->physical_device,
  98                                                            format, &props);
  99    if (!(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
 100       return;
 101
 102    f = u_vector_add(&display->formats);
 103    if (f)
 104       *f = format;
 105 }
 106
 107 static void
 108 drm_handle_device(void *data, struct wl_drm *drm, const char *name)
 109 {
 110 }
 111
 112 static uint32_t
 113 wl_drm_format_for_vk_format(VkFormat vk_format, bool alpha)
 114 {
 115    switch (vk_format) {
 116    /* TODO: Figure out what all the formats mean and make this table
 117     * correct.
 118     */
 119 #if 0
 120    case VK_FORMAT_R4G4B4A4_UNORM:
 121       return alpha ? WL_DRM_FORMAT_ABGR4444 : WL_DRM_FORMAT_XBGR4444;
 122    case VK_FORMAT_R5G6B5_UNORM:
 123       return WL_DRM_FORMAT_BGR565;
 124    case VK_FORMAT_R5G5B5A1_UNORM:
 125       return alpha ? WL_DRM_FORMAT_ABGR1555 : WL_DRM_FORMAT_XBGR1555;
 126    case VK_FORMAT_R8G8B8_UNORM:
 127       return WL_DRM_FORMAT_XBGR8888;
 128    case VK_FORMAT_R8G8B8A8_UNORM:
 129       return alpha ? WL_DRM_FORMAT_ABGR8888 : WL_DRM_FORMAT_XBGR8888;
 130    case VK_FORMAT_R10G10B10A2_UNORM:
 131       return alpha ? WL_DRM_FORMAT_ABGR2101010 : WL_DRM_FORMAT_XBGR2101010;
 132    case VK_FORMAT_B4G4R4A4_UNORM:
 133       return alpha ? WL_DRM_FORMAT_ARGB4444 : WL_DRM_FORMAT_XRGB4444;
 134    case VK_FORMAT_B5G6R5_UNORM:
 135       return WL_DRM_FORMAT_RGB565;
 136    case VK_FORMAT_B5G5R5A1_UNORM:
 137       return alpha ? WL_DRM_FORMAT_XRGB1555 : WL_DRM_FORMAT_XRGB1555;
 138 #endif
 139    case VK_FORMAT_B8G8R8_UNORM:
 140    case VK_FORMAT_B8G8R8_SRGB:
 141       return WL_DRM_FORMAT_BGRX8888;
 142    case VK_FORMAT_B8G8R8A8_UNORM:
 143    case VK_FORMAT_B8G8R8A8_SRGB:
 144       return alpha ? WL_DRM_FORMAT_ARGB8888 : WL_DRM_FORMAT_XRGB8888;
 145 #if 0
 146    case VK_FORMAT_B10G10R10A2_UNORM:
 147       return alpha ? WL_DRM_FORMAT_ARGB2101010 : WL_DRM_FORMAT_XRGB2101010;
 148 #endif
 149
 150    default:
 151       assert(!"Unsupported Vulkan format");
 152       return 0;
 153    }
 154 }
 155
 156 static void
 157 drm_handle_format(void *data, struct wl_drm *drm, uint32_t wl_format)
 158 {
 159    struct wsi_wl_display *display = data;
 160    if (display->formats.element_size == 0)
 161       return;
 162
 163    switch (wl_format) {
 164 #if 0
 165    case WL_DRM_FORMAT_ABGR4444:
 166    case WL_DRM_FORMAT_XBGR4444:
 167       wsi_wl_display_add_vk_format(display, VK_FORMAT_R4G4B4A4_UNORM);
 168       break;
 169    case WL_DRM_FORMAT_BGR565:
 170       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G6B5_UNORM);
 171       break;
 172    case WL_DRM_FORMAT_ABGR1555:
 173    case WL_DRM_FORMAT_XBGR1555:
 174       wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G5B5A1_UNORM);
 175       break;
 176    case WL_DRM_FORMAT_XBGR8888:
 177       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8_UNORM);
 178       /* fallthrough */
 179    case WL_DRM_FORMAT_ABGR8888:
 180       wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8A8_UNORM);
 181       break;
 182    case WL_DRM_FORMAT_ABGR2101010:
 183    case WL_DRM_FORMAT_XBGR2101010:
 184       wsi_wl_display_add_vk_format(display, VK_FORMAT_R10G10B10A2_UNORM);
 185       break;
 186    case WL_DRM_FORMAT_ARGB4444:
 187    case WL_DRM_FORMAT_XRGB4444:
 188       wsi_wl_display_add_vk_format(display, VK_FORMAT_B4G4R4A4_UNORM);
 189       break;
 190    case WL_DRM_FORMAT_RGB565:
 191       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G6R5_UNORM);
 192       break;
 193    case WL_DRM_FORMAT_ARGB1555:
 194    case WL_DRM_FORMAT_XRGB1555:
 195       wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G5R5A1_UNORM);
 196       break;
 197 #endif
 198    case WL_DRM_FORMAT_XRGB8888:
 199       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8_SRGB);
 200       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8_UNORM);
 201       /* fallthrough */
 202    case WL_DRM_FORMAT_ARGB8888:
 203       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_SRGB);
 204       wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_UNORM);
 205       break;
 206 #if 0
 207    case WL_DRM_FORMAT_ARGB2101010:
 208    case WL_DRM_FORMAT_XRGB2101010:
 209       wsi_wl_display_add_vk_format(display, VK_FORMAT_B10G10R10A2_UNORM);
 210       break;
 211 #endif
 212    }
 213 }
 214
 215 static void
 216 drm_handle_authenticated(void *data, struct wl_drm *drm)
 217 {
 218 }
 219
 220 static void
 221 drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t capabilities)
 222 {
 223    struct wsi_wl_display *display = data;
 224
 225    display->capabilities = capabilities;
 226 }
 227
 228 static const struct wl_drm_listener drm_listener = {
 229    drm_handle_device,
 230    drm_handle_format,
 231    drm_handle_authenticated,
 232    drm_handle_capabilities,
 233 };
 234
 235 static void
 236 dmabuf_handle_format(void *data, struct zwp_linux_dmabuf_v1 *dmabuf,
 237                      uint32_t format)
 238 {
 239    /* Formats are implicitly advertised by the modifier event, so we ignore
 240     * them here. */
 241 }
 242
 243 static void
 244 dmabuf_handle_modifier(void *data, struct zwp_linux_dmabuf_v1 *dmabuf,
 245                        uint32_t format, uint32_t modifier_hi,
 246                        uint32_t modifier_lo)
 247 {
 248    struct wsi_wl_display *display = data;
 249    uint64_t *mod = NULL;
 250
 251    /* If we're not fetching formats, don't fetch modifiers either. */
 252    if (display->formats.element_size == 0)
 253       return;
 254
 255    if (modifier_hi == (DRM_FORMAT_MOD_INVALID >> 32) &&
 256        modifier_lo == (DRM_FORMAT_MOD_INVALID & 0xffffffff))
 257       return;
 258
 259    switch (format) {
 260    case WL_DRM_FORMAT_ARGB8888:
 261       mod = u_vector_add(&display->modifiers.argb8888);
 262       break;
 263    case WL_DRM_FORMAT_XRGB8888:
 264       mod = u_vector_add(&display->modifiers.xrgb8888);
 265       break;
 266    default:
 267       break;
 268    }
 269
 270    if (!mod)
 271       return;
 272
 273    *mod = (uint64_t) modifier_hi << 32;
 274    *mod |= (uint64_t) (modifier_lo & 0xffffffff);
 275 }
 276
 277 static const struct zwp_linux_dmabuf_v1_listener dmabuf_listener = {
 278    dmabuf_handle_format,
 279    dmabuf_handle_modifier,
 280 };
 281
 282 static void
 283 registry_handle_global(void *data, struct wl_registry *registry,
 284                        uint32_t name, const char *interface, uint32_t version)
 285 {
 286    struct wsi_wl_display *display = data;
 287
 288    if (strcmp(interface, "wl_drm") == 0) {
 289       assert(display->drm == NULL);
 290
 291       assert(version >= 2);
 292       display->drm = wl_registry_bind(registry, name, &wl_drm_interface, 2);
 293
 294       if (display->drm)
 295          wl_drm_add_listener(display->drm, &drm_listener, display);
 296    } else if (strcmp(interface, "zwp_linux_dmabuf_v1") == 0 && version >= 3) {
 297       display->dmabuf =
 298          wl_registry_bind(registry, name, &zwp_linux_dmabuf_v1_interface, 3);
 299       zwp_linux_dmabuf_v1_add_listener(display->dmabuf, &dmabuf_listener,
 300                                        display);
 301    }
 302 }
 303
 304 static void
 305 registry_handle_global_remove(void *data, struct wl_registry *registry,
 306                               uint32_t name)
 307 { /* No-op */ }
 308
 309 static const struct wl_registry_listener registry_listener = {
 310    registry_handle_global,
 311    registry_handle_global_remove
 312 };
 313
 314 static void
 315 wsi_wl_display_finish(struct wsi_wl_display *display)
 316 {
 317    assert(display->refcount == 0);
 318
 319    u_vector_finish(&display->formats);
 320    u_vector_finish(&display->modifiers.argb8888);
 321    u_vector_finish(&display->modifiers.xrgb8888);
 322    if (display->drm)
 323       wl_drm_destroy(display->drm);
 324    if (display->dmabuf)
 325       zwp_linux_dmabuf_v1_destroy(display->dmabuf);
 326    if (display->wl_display_wrapper)
 327       wl_proxy_wrapper_destroy(display->wl_display_wrapper);
 328    if (display->queue)
 329       wl_event_queue_destroy(display->queue);
 330 }
 331
 332 static VkResult
 333 wsi_wl_display_init(struct wsi_wayland *wsi_wl,
 334                     struct wsi_wl_display *display,
 335                     struct wl_display *wl_display,
 336                     bool get_format_list)
 337 {
 338    VkResult result = VK_SUCCESS;
 339    memset(display, 0, sizeof(*display));
 340
 341    display->wsi_wl = wsi_wl;
 342    display->wl_display = wl_display;
 343
 344    if (get_format_list) {
 345       if (!u_vector_init(&display->formats, sizeof(VkFormat), 8) ||
 346           !u_vector_init(&display->modifiers.argb8888, sizeof(uint64_t), 32) ||
 347           !u_vector_init(&display->modifiers.xrgb8888, sizeof(uint64_t), 32)) {
 348          result = VK_ERROR_OUT_OF_HOST_MEMORY;
 349          goto fail;
 350       }
 351    }
 352
 353    display->queue = wl_display_create_queue(wl_display);
 354    if (!display->queue) {
 355       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 356       goto fail;
 357    }
 358
 359    display->wl_display_wrapper = wl_proxy_create_wrapper(wl_display);
 360    if (!display->wl_display_wrapper) {
 361       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 362       goto fail;
 363    }
 364
 365    wl_proxy_set_queue((struct wl_proxy *) display->wl_display_wrapper,
 366                       display->queue);
 367
 368    struct wl_registry *registry =
 369       wl_display_get_registry(display->wl_display_wrapper);
 370    if (!registry) {
 371       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 372       goto fail;
 373    }
 374
 375    wl_registry_add_listener(registry, &registry_listener, display);
 376
 377    /* Round-trip to get the wl_drm global */
 378    wl_display_roundtrip_queue(display->wl_display, display->queue);
 379
 380    if (!display->drm) {
 381       result = VK_ERROR_SURFACE_LOST_KHR;
 382       goto fail_registry;
 383    }
 384
 385    /* Round-trip to get wl_drm formats and capabilities */
 386    wl_display_roundtrip_queue(display->wl_display, display->queue);
 387
 388    /* We need prime support */
 389    if (!(display->capabilities & WL_DRM_CAPABILITY_PRIME)) {
 390       result = VK_ERROR_SURFACE_LOST_KHR;
 391       goto fail_registry;
 392    }
 393
 394    /* We don't need this anymore */
 395    wl_registry_destroy(registry);
 396
 397    display->refcount = 0;
 398
 399    return VK_SUCCESS;
 400
 401 fail_registry:
 402    if (registry)
 403       wl_registry_destroy(registry);
 404
 405 fail:
 406    wsi_wl_display_finish(display);
 407    return result;
 408 }
 409
 410 static VkResult
 411 wsi_wl_display_create(struct wsi_wayland *wsi, struct wl_display *wl_display,
 412                       struct wsi_wl_display **display_out)
 413 {
 414    struct wsi_wl_display *display =
 415       vk_alloc(wsi->alloc, sizeof(*display), 8,
 416                VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
 417    if (!display)
 418       return VK_ERROR_OUT_OF_HOST_MEMORY;
 419
 420    VkResult result = wsi_wl_display_init(wsi, display, wl_display, true);
 421    if (result != VK_SUCCESS) {
 422       vk_free(wsi->alloc, display);
 423       return result;
 424    }
 425
 426    display->refcount++;
 427    *display_out = display;
 428
 429    return result;
 430 }
 431
 432 static struct wsi_wl_display *
 433 wsi_wl_display_ref(struct wsi_wl_display *display)
 434 {
 435    display->refcount++;
 436    return display;
 437 }
 438
 439 static void
 440 wsi_wl_display_unref(struct wsi_wl_display *display)
 441 {
 442    if (display->refcount-- > 1)
 443       return;
 444
 445    struct wsi_wayland *wsi = display->wsi_wl;
 446    wsi_wl_display_finish(display);
 447    vk_free(wsi->alloc, display);
 448 }
 449
 450 VkBool32
 451 wsi_wl_get_presentation_support(struct wsi_device *wsi_device,
 452                                 struct wl_display *wl_display)
 453 {
 454    struct wsi_wayland *wsi =
 455       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 456
 457    struct wsi_wl_display display;
 458    int ret = wsi_wl_display_init(wsi, &display, wl_display, false);
 459    wsi_wl_display_finish(&display);
 460
 461    return ret == 0;
 462 }
 463
 464 static VkResult
 465 wsi_wl_surface_get_support(VkIcdSurfaceBase *surface,
 466                            struct wsi_device *wsi_device,
 467                            const VkAllocationCallbacks *alloc,
 468                            uint32_t queueFamilyIndex,
 469                            int local_fd,
 470                            VkBool32* pSupported)
 471 {
 472    *pSupported = true;
 473
 474    return VK_SUCCESS;
 475 }
 476
 477 static const VkPresentModeKHR present_modes[] = {
 478    VK_PRESENT_MODE_MAILBOX_KHR,
 479    VK_PRESENT_MODE_FIFO_KHR,
 480 };
 481
 482 static VkResult
 483 wsi_wl_surface_get_capabilities(VkIcdSurfaceBase *surface,
 484                                 VkSurfaceCapabilitiesKHR* caps)
 485 {
 486    /* For true mailbox mode, we need at least 4 images:
 487     *  1) One to scan out from
 488     *  2) One to have queued for scan-out
 489     *  3) One to be currently held by the Wayland compositor
 490     *  4) One to render to
 491     */
 492    caps->minImageCount = 4;
 493    /* There is no real maximum */
 494    caps->maxImageCount = 0;
 495
 496    caps->currentExtent = (VkExtent2D) { -1, -1 };
 497    caps->minImageExtent = (VkExtent2D) { 1, 1 };
 498    /* This is the maximum supported size on Intel */
 499    caps->maxImageExtent = (VkExtent2D) { 1 << 14, 1 << 14 };
 500    caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 501    caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 502    caps->maxImageArrayLayers = 1;
 503
 504    caps->supportedCompositeAlpha =
 505       VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
 506       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 507
 508    caps->supportedUsageFlags =
 509       VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 510       VK_IMAGE_USAGE_SAMPLED_BIT |
 511       VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 512       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 513
 514    return VK_SUCCESS;
 515 }
 516
 517 static VkResult
 518 wsi_wl_surface_get_capabilities2(VkIcdSurfaceBase *surface,
 519                                  const void *info_next,
 520                                  VkSurfaceCapabilities2KHR* caps)
 521 {
 522    assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR);
 523
 524    return wsi_wl_surface_get_capabilities(surface, &caps->surfaceCapabilities);
 525 }
 526
 527 static VkResult
 528 wsi_wl_surface_get_formats(VkIcdSurfaceBase *icd_surface,
 529                            struct wsi_device *wsi_device,
 530                            uint32_t* pSurfaceFormatCount,
 531                            VkSurfaceFormatKHR* pSurfaceFormats)
 532 {
 533    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 534    struct wsi_wayland *wsi =
 535       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 536
 537    struct wsi_wl_display display;
 538    if (wsi_wl_display_init(wsi, &display, surface->display, true))
 539       return VK_ERROR_SURFACE_LOST_KHR;
 540
 541    VK_OUTARRAY_MAKE(out, pSurfaceFormats, pSurfaceFormatCount);
 542
 543    VkFormat *disp_fmt;
 544    u_vector_foreach(disp_fmt, &display.formats) {
 545       vk_outarray_append(&out, out_fmt) {
 546          out_fmt->format = *disp_fmt;
 547          out_fmt->colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 548       }
 549    }
 550
 551    wsi_wl_display_finish(&display);
 552
 553    return vk_outarray_status(&out);
 554 }
 555
 556 static VkResult
 557 wsi_wl_surface_get_formats2(VkIcdSurfaceBase *icd_surface,
 558                             struct wsi_device *wsi_device,
 559                             const void *info_next,
 560                             uint32_t* pSurfaceFormatCount,
 561                             VkSurfaceFormat2KHR* pSurfaceFormats)
 562 {
 563    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 564    struct wsi_wayland *wsi =
 565       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 566
 567    struct wsi_wl_display display;
 568    if (wsi_wl_display_init(wsi, &display, surface->display, true))
 569       return VK_ERROR_SURFACE_LOST_KHR;
 570
 571    VK_OUTARRAY_MAKE(out, pSurfaceFormats, pSurfaceFormatCount);
 572
 573    VkFormat *disp_fmt;
 574    u_vector_foreach(disp_fmt, &display.formats) {
 575       vk_outarray_append(&out, out_fmt) {
 576          out_fmt->surfaceFormat.format = *disp_fmt;
 577          out_fmt->surfaceFormat.colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 578       }
 579    }
 580
 581    wsi_wl_display_finish(&display);
 582
 583    return vk_outarray_status(&out);
 584 }
 585
 586 static VkResult
 587 wsi_wl_surface_get_present_modes(VkIcdSurfaceBase *surface,
 588                                  uint32_t* pPresentModeCount,
 589                                  VkPresentModeKHR* pPresentModes)
 590 {
 591    if (pPresentModes == NULL) {
 592       *pPresentModeCount = ARRAY_SIZE(present_modes);
 593       return VK_SUCCESS;
 594    }
 595
 596    *pPresentModeCount = MIN2(*pPresentModeCount, ARRAY_SIZE(present_modes));
 597    typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
 598
 599    if (*pPresentModeCount < ARRAY_SIZE(present_modes))
 600       return VK_INCOMPLETE;
 601    else
 602       return VK_SUCCESS;
 603 }
 604
 605 VkResult wsi_create_wl_surface(const VkAllocationCallbacks *pAllocator,
 606                                const VkWaylandSurfaceCreateInfoKHR *pCreateInfo,
 607                                VkSurfaceKHR *pSurface)
 608 {
 609    VkIcdSurfaceWayland *surface;
 610
 611    surface = vk_alloc(pAllocator, sizeof *surface, 8,
 612                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 613    if (surface == NULL)
 614       return VK_ERROR_OUT_OF_HOST_MEMORY;
 615
 616    surface->base.platform = VK_ICD_WSI_PLATFORM_WAYLAND;
 617    surface->display = pCreateInfo->display;
 618    surface->surface = pCreateInfo->surface;
 619
 620    *pSurface = VkIcdSurfaceBase_to_handle(&surface->base);
 621
 622    return VK_SUCCESS;
 623 }
 624
 625 struct wsi_wl_image {
 626    struct wsi_image                             base;
 627    struct wl_buffer *                           buffer;
 628    bool                                         busy;
 629 };
 630
 631 struct wsi_wl_swapchain {
 632    struct wsi_swapchain                        base;
 633
 634    struct wsi_wl_display                        *display;
 635
 636    struct wl_surface *                          surface;
 637    uint32_t                                     surface_version;
 638    struct wl_drm *                              drm_wrapper;
 639    struct wl_callback *                         frame;
 640
 641    VkExtent2D                                   extent;
 642    VkFormat                                     vk_format;
 643    uint32_t                                     drm_format;
 644
 645    VkPresentModeKHR                             present_mode;
 646    bool                                         fifo_ready;
 647
 648    struct wsi_wl_image                          images[0];
 649 };
 650
 651 static struct wsi_image *
 652 wsi_wl_swapchain_get_wsi_image(struct wsi_swapchain *wsi_chain,
 653                                uint32_t image_index)
 654 {
 655    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 656    return &chain->images[image_index].base;
 657 }
 658
 659 static VkResult
 660 wsi_wl_swapchain_acquire_next_image(struct wsi_swapchain *wsi_chain,
 661                                     uint64_t timeout,
 662                                     VkSemaphore semaphore,
 663                                     uint32_t *image_index)
 664 {
 665    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 666
 667    int ret = wl_display_dispatch_queue_pending(chain->display->wl_display,
 668                                                chain->display->queue);
 669    /* XXX: I'm not sure if out-of-date is the right error here.  If
 670     * wl_display_dispatch_queue_pending fails it most likely means we got
 671     * kicked by the server so this seems more-or-less correct.
 672     */
 673    if (ret < 0)
 674       return VK_ERROR_OUT_OF_DATE_KHR;
 675
 676    while (1) {
 677       for (uint32_t i = 0; i < chain->base.image_count; i++) {
 678          if (!chain->images[i].busy) {
 679             /* We found a non-busy image */
 680             *image_index = i;
 681             chain->images[i].busy = true;
 682             return VK_SUCCESS;
 683          }
 684       }
 685
 686       /* This time we do a blocking dispatch because we can't go
 687        * anywhere until we get an event.
 688        */
 689       int ret = wl_display_roundtrip_queue(chain->display->wl_display,
 690                                            chain->display->queue);
 691       if (ret < 0)
 692          return VK_ERROR_OUT_OF_DATE_KHR;
 693    }
 694 }
 695
 696 static void
 697 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 698 {
 699    struct wsi_wl_swapchain *chain = data;
 700
 701    chain->frame = NULL;
 702    chain->fifo_ready = true;
 703
 704    wl_callback_destroy(callback);
 705 }
 706
 707 static const struct wl_callback_listener frame_listener = {
 708    frame_handle_done,
 709 };
 710
 711 static VkResult
 712 wsi_wl_swapchain_queue_present(struct wsi_swapchain *wsi_chain,
 713                                uint32_t image_index,
 714                                const VkPresentRegionKHR *damage)
 715 {
 716    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 717
 718    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 719       while (!chain->fifo_ready) {
 720          int ret = wl_display_dispatch_queue(chain->display->wl_display,
 721                                              chain->display->queue);
 722          if (ret < 0)
 723             return VK_ERROR_OUT_OF_DATE_KHR;
 724       }
 725    }
 726
 727    assert(image_index < chain->base.image_count);
 728    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 729
 730    if (chain->surface_version >= 4 && damage &&
 731        damage->pRectangles && damage->rectangleCount > 0) {
 732       for (unsigned i = 0; i < damage->rectangleCount; i++) {
 733          const VkRectLayerKHR *rect = &damage->pRectangles[i];
 734          assert(rect->layer == 0);
 735          wl_surface_damage_buffer(chain->surface,
 736                                   rect->offset.x, rect->offset.y,
 737                                   rect->extent.width, rect->extent.height);
 738       }
 739    } else {
 740       wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 741    }
 742
 743    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 744       chain->frame = wl_surface_frame(chain->surface);
 745       wl_callback_add_listener(chain->frame, &frame_listener, chain);
 746       chain->fifo_ready = false;
 747    }
 748
 749    chain->images[image_index].busy = true;
 750    wl_surface_commit(chain->surface);
 751    wl_display_flush(chain->display->wl_display);
 752
 753    return VK_SUCCESS;
 754 }
 755
 756 static void
 757 buffer_handle_release(void *data, struct wl_buffer *buffer)
 758 {
 759    struct wsi_wl_image *image = data;
 760
 761    assert(image->buffer == buffer);
 762
 763    image->busy = false;
 764 }
 765
 766 static const struct wl_buffer_listener buffer_listener = {
 767    buffer_handle_release,
 768 };
 769
 770 static VkResult
 771 wsi_wl_image_init(struct wsi_wl_swapchain *chain,
 772                   struct wsi_wl_image *image,
 773                   const VkSwapchainCreateInfoKHR *pCreateInfo,
 774                   const VkAllocationCallbacks* pAllocator)
 775 {
 776    struct wsi_wl_display *display = chain->display;
 777    const uint64_t *modifiers = NULL;
 778    uint32_t num_modifiers = 0;
 779    VkResult result;
 780
 781    if (display->dmabuf && chain->base.wsi->supports_modifiers) {
 782       switch (chain->drm_format) {
 783       case WL_DRM_FORMAT_ARGB8888:
 784          modifiers = u_vector_tail(&display->modifiers.argb8888);
 785          num_modifiers = u_vector_length(&display->modifiers.argb8888);
 786          break;
 787       case WL_DRM_FORMAT_XRGB8888:
 788          modifiers = u_vector_tail(&display->modifiers.xrgb8888);
 789          num_modifiers = u_vector_length(&display->modifiers.xrgb8888);
 790          break;
 791       default:
 792          break;
 793       }
 794    }
 795
 796    result = wsi_create_native_image(&chain->base, pCreateInfo,
 797                                     num_modifiers > 0 ? 1 : 0,
 798                                     &num_modifiers, &modifiers,
 799                                     &image->base);
 800
 801    if (result != VK_SUCCESS)
 802       return result;
 803
 804    if (image->base.drm_modifier != DRM_FORMAT_MOD_INVALID) {
 805       /* Only request modifiers if we have dmabuf, else it must be implicit. */
 806       assert(display->dmabuf);
 807
 808       struct zwp_linux_buffer_params_v1 *params =
 809          zwp_linux_dmabuf_v1_create_params(display->dmabuf);
 810       wl_proxy_set_queue((struct wl_proxy *) params, chain->display->queue);
 811
 812       for (int i = 0; i < image->base.num_planes; i++) {
 813          zwp_linux_buffer_params_v1_add(params,
 814                                         image->base.fds[i],
 815                                         i,
 816                                         image->base.offsets[i],
 817                                         image->base.row_pitches[i],
 818                                         image->base.drm_modifier >> 32,
 819                                         image->base.drm_modifier & 0xffffffff);
 820          close(image->base.fds[i]);
 821       }
 822
 823       image->buffer =
 824          zwp_linux_buffer_params_v1_create_immed(params,
 825                                                  chain->extent.width,
 826                                                  chain->extent.height,
 827                                                  chain->drm_format,
 828                                                  0);
 829       zwp_linux_buffer_params_v1_destroy(params);
 830    } else {
 831       /* Without passing modifiers, we can't have multi-plane RGB images. */
 832       assert(image->base.num_planes == 1);
 833
 834       image->buffer =
 835          wl_drm_create_prime_buffer(chain->drm_wrapper,
 836                                     image->base.fds[0], /* name */
 837                                     chain->extent.width,
 838                                     chain->extent.height,
 839                                     chain->drm_format,
 840                                     image->base.offsets[0],
 841                                     image->base.row_pitches[0],
 842                                     0, 0, 0, 0 /* unused */);
 843       close(image->base.fds[0]);
 844    }
 845
 846    if (!image->buffer)
 847       goto fail_image;
 848
 849    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 850
 851    return VK_SUCCESS;
 852
 853 fail_image:
 854    wsi_destroy_image(&chain->base, &image->base);
 855
 856    return result;
 857 }
 858
 859 static VkResult
 860 wsi_wl_swapchain_destroy(struct wsi_swapchain *wsi_chain,
 861                          const VkAllocationCallbacks *pAllocator)
 862 {
 863    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 864
 865    for (uint32_t i = 0; i < chain->base.image_count; i++) {
 866       if (chain->images[i].buffer) {
 867          wl_buffer_destroy(chain->images[i].buffer);
 868          wsi_destroy_image(&chain->base, &chain->images[i].base);
 869       }
 870    }
 871
 872    if (chain->frame)
 873       wl_callback_destroy(chain->frame);
 874    if (chain->surface)
 875       wl_proxy_wrapper_destroy(chain->surface);
 876    if (chain->drm_wrapper)
 877       wl_proxy_wrapper_destroy(chain->drm_wrapper);
 878
 879    if (chain->display)
 880       wsi_wl_display_unref(chain->display);
 881
 882    wsi_swapchain_finish(&chain->base);
 883
 884    vk_free(pAllocator, chain);
 885
 886    return VK_SUCCESS;
 887 }
 888
 889 static VkResult
 890 wsi_wl_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
 891                                 VkDevice device,
 892                                 struct wsi_device *wsi_device,
 893                                 int local_fd,
 894                                 const VkSwapchainCreateInfoKHR* pCreateInfo,
 895                                 const VkAllocationCallbacks* pAllocator,
 896                                 struct wsi_swapchain **swapchain_out)
 897 {
 898    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 899    struct wsi_wayland *wsi =
 900       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 901    struct wsi_wl_swapchain *chain;
 902    VkResult result;
 903
 904    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
 905
 906    int num_images = pCreateInfo->minImageCount;
 907
 908    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 909    chain = vk_alloc(pAllocator, size, 8,
 910                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 911    if (chain == NULL)
 912       return VK_ERROR_OUT_OF_HOST_MEMORY;
 913
 914    result = wsi_swapchain_init(wsi_device, &chain->base, device,
 915                                pCreateInfo, pAllocator);
 916    if (result != VK_SUCCESS) {
 917       vk_free(pAllocator, chain);
 918       return result;
 919    }
 920
 921    /* Mark a bunch of stuff as NULL.  This way we can just call
 922     * destroy_swapchain for cleanup.
 923     */
 924    for (uint32_t i = 0; i < num_images; i++)
 925       chain->images[i].buffer = NULL;
 926    chain->surface = NULL;
 927    chain->drm_wrapper = NULL;
 928    chain->frame = NULL;
 929
 930    bool alpha = pCreateInfo->compositeAlpha ==
 931                       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 932
 933    chain->base.destroy = wsi_wl_swapchain_destroy;
 934    chain->base.get_wsi_image = wsi_wl_swapchain_get_wsi_image;
 935    chain->base.acquire_next_image = wsi_wl_swapchain_acquire_next_image;
 936    chain->base.queue_present = wsi_wl_swapchain_queue_present;
 937    chain->base.present_mode = pCreateInfo->presentMode;
 938    chain->base.image_count = num_images;
 939    chain->extent = pCreateInfo->imageExtent;
 940    chain->vk_format = pCreateInfo->imageFormat;
 941    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, alpha);
 942
 943    if (pCreateInfo->oldSwapchain) {
 944       /* If we have an oldSwapchain parameter, copy the display struct over
 945        * from the old one so we don't have to fully re-initialize it.
 946        */
 947       struct wsi_wl_swapchain *old_chain = (void *)pCreateInfo->oldSwapchain;
 948       chain->display = wsi_wl_display_ref(old_chain->display);
 949    } else {
 950       chain->display = NULL;
 951       result = wsi_wl_display_create(wsi, surface->display, &chain->display);
 952       if (result != VK_SUCCESS)
 953          goto fail;
 954    }
 955
 956    chain->surface = wl_proxy_create_wrapper(surface->surface);
 957    if (!chain->surface) {
 958       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 959       goto fail;
 960    }
 961    wl_proxy_set_queue((struct wl_proxy *) chain->surface,
 962                       chain->display->queue);
 963    chain->surface_version = wl_proxy_get_version((void *)surface->surface);
 964
 965    chain->drm_wrapper = wl_proxy_create_wrapper(chain->display->drm);
 966    if (!chain->drm_wrapper) {
 967       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 968       goto fail;
 969    }
 970    wl_proxy_set_queue((struct wl_proxy *) chain->drm_wrapper,
 971                       chain->display->queue);
 972
 973    chain->fifo_ready = true;
 974
 975    for (uint32_t i = 0; i < chain->base.image_count; i++) {
 976       result = wsi_wl_image_init(chain, &chain->images[i],
 977                                  pCreateInfo, pAllocator);
 978       if (result != VK_SUCCESS)
 979          goto fail;
 980       chain->images[i].busy = false;
 981    }
 982
 983    *swapchain_out = &chain->base;
 984
 985    return VK_SUCCESS;
 986
 987 fail:
 988    wsi_wl_swapchain_destroy(&chain->base, pAllocator);
 989
 990    return result;
 991 }
 992
 993 VkResult
 994 wsi_wl_init_wsi(struct wsi_device *wsi_device,
 995                 const VkAllocationCallbacks *alloc,
 996                 VkPhysicalDevice physical_device)
 997 {
 998    struct wsi_wayland *wsi;
 999    VkResult result;
1000
1001    wsi = vk_alloc(alloc, sizeof(*wsi), 8,
1002                    VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
1003    if (!wsi) {
1004       result = VK_ERROR_OUT_OF_HOST_MEMORY;
1005       goto fail;
1006    }
1007
1008    wsi->physical_device = physical_device;
1009    wsi->alloc = alloc;
1010    wsi->wsi = wsi_device;
1011
1012    wsi->base.get_support = wsi_wl_surface_get_support;
1013    wsi->base.get_capabilities = wsi_wl_surface_get_capabilities;
1014    wsi->base.get_capabilities2 = wsi_wl_surface_get_capabilities2;
1015    wsi->base.get_formats = wsi_wl_surface_get_formats;
1016    wsi->base.get_formats2 = wsi_wl_surface_get_formats2;
1017    wsi->base.get_present_modes = wsi_wl_surface_get_present_modes;
1018    wsi->base.create_swapchain = wsi_wl_surface_create_swapchain;
1019
1020    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = &wsi->base;
1021
1022    return VK_SUCCESS;
1023
1024 fail:
1025    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = NULL;
1026
1027    return result;
1028 }
1029
1030 void
1031 wsi_wl_finish_wsi(struct wsi_device *wsi_device,
1032                   const VkAllocationCallbacks *alloc)
1033 {
1034    struct wsi_wayland *wsi =
1035       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
1036    if (!wsi)
1037       return;
1038
1039    vk_free(alloc, wsi);
1040 }