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    VkResult ret = wsi_wl_display_init(wsi, &display, wl_display, false);
 459    if (ret == VK_SUCCESS)
 460       wsi_wl_display_finish(&display);
 461
 462    return ret == VK_SUCCESS;
 463 }
 464
 465 static VkResult
 466 wsi_wl_surface_get_support(VkIcdSurfaceBase *surface,
 467                            struct wsi_device *wsi_device,
 468                            uint32_t queueFamilyIndex,
 469                            VkBool32* pSupported)
 470 {
 471    *pSupported = true;
 472
 473    return VK_SUCCESS;
 474 }
 475
 476 static const VkPresentModeKHR present_modes[] = {
 477    VK_PRESENT_MODE_MAILBOX_KHR,
 478    VK_PRESENT_MODE_FIFO_KHR,
 479 };
 480
 481 static VkResult
 482 wsi_wl_surface_get_capabilities(VkIcdSurfaceBase *surface,
 483                                 VkSurfaceCapabilitiesKHR* caps)
 484 {
 485    /* For true mailbox mode, we need at least 4 images:
 486     *  1) One to scan out from
 487     *  2) One to have queued for scan-out
 488     *  3) One to be currently held by the Wayland compositor
 489     *  4) One to render to
 490     */
 491    caps->minImageCount = 4;
 492    /* There is no real maximum */
 493    caps->maxImageCount = 0;
 494
 495    caps->currentExtent = (VkExtent2D) { -1, -1 };
 496    caps->minImageExtent = (VkExtent2D) { 1, 1 };
 497    /* This is the maximum supported size on Intel */
 498    caps->maxImageExtent = (VkExtent2D) { 1 << 14, 1 << 14 };
 499    caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 500    caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 501    caps->maxImageArrayLayers = 1;
 502
 503    caps->supportedCompositeAlpha =
 504       VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
 505       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 506
 507    caps->supportedUsageFlags =
 508       VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 509       VK_IMAGE_USAGE_SAMPLED_BIT |
 510       VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 511       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 512
 513    return VK_SUCCESS;
 514 }
 515
 516 static VkResult
 517 wsi_wl_surface_get_capabilities2(VkIcdSurfaceBase *surface,
 518                                  const void *info_next,
 519                                  VkSurfaceCapabilities2KHR* caps)
 520 {
 521    assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR);
 522
 523    return wsi_wl_surface_get_capabilities(surface, &caps->surfaceCapabilities);
 524 }
 525
 526 static VkResult
 527 wsi_wl_surface_get_formats(VkIcdSurfaceBase *icd_surface,
 528                            struct wsi_device *wsi_device,
 529                            uint32_t* pSurfaceFormatCount,
 530                            VkSurfaceFormatKHR* pSurfaceFormats)
 531 {
 532    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 533    struct wsi_wayland *wsi =
 534       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 535
 536    struct wsi_wl_display display;
 537    if (wsi_wl_display_init(wsi, &display, surface->display, true))
 538       return VK_ERROR_SURFACE_LOST_KHR;
 539
 540    VK_OUTARRAY_MAKE(out, pSurfaceFormats, pSurfaceFormatCount);
 541
 542    VkFormat *disp_fmt;
 543    u_vector_foreach(disp_fmt, &display.formats) {
 544       vk_outarray_append(&out, out_fmt) {
 545          out_fmt->format = *disp_fmt;
 546          out_fmt->colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 547       }
 548    }
 549
 550    wsi_wl_display_finish(&display);
 551
 552    return vk_outarray_status(&out);
 553 }
 554
 555 static VkResult
 556 wsi_wl_surface_get_formats2(VkIcdSurfaceBase *icd_surface,
 557                             struct wsi_device *wsi_device,
 558                             const void *info_next,
 559                             uint32_t* pSurfaceFormatCount,
 560                             VkSurfaceFormat2KHR* pSurfaceFormats)
 561 {
 562    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 563    struct wsi_wayland *wsi =
 564       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 565
 566    struct wsi_wl_display display;
 567    if (wsi_wl_display_init(wsi, &display, surface->display, true))
 568       return VK_ERROR_SURFACE_LOST_KHR;
 569
 570    VK_OUTARRAY_MAKE(out, pSurfaceFormats, pSurfaceFormatCount);
 571
 572    VkFormat *disp_fmt;
 573    u_vector_foreach(disp_fmt, &display.formats) {
 574       vk_outarray_append(&out, out_fmt) {
 575          out_fmt->surfaceFormat.format = *disp_fmt;
 576          out_fmt->surfaceFormat.colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 577       }
 578    }
 579
 580    wsi_wl_display_finish(&display);
 581
 582    return vk_outarray_status(&out);
 583 }
 584
 585 static VkResult
 586 wsi_wl_surface_get_present_modes(VkIcdSurfaceBase *surface,
 587                                  uint32_t* pPresentModeCount,
 588                                  VkPresentModeKHR* pPresentModes)
 589 {
 590    if (pPresentModes == NULL) {
 591       *pPresentModeCount = ARRAY_SIZE(present_modes);
 592       return VK_SUCCESS;
 593    }
 594
 595    *pPresentModeCount = MIN2(*pPresentModeCount, ARRAY_SIZE(present_modes));
 596    typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
 597
 598    if (*pPresentModeCount < ARRAY_SIZE(present_modes))
 599       return VK_INCOMPLETE;
 600    else
 601       return VK_SUCCESS;
 602 }
 603
 604 static VkResult
 605 wsi_wl_surface_get_present_rectangles(VkIcdSurfaceBase *surface,
 606                                       struct wsi_device *wsi_device,
 607                                       uint32_t* pRectCount,
 608                                       VkRect2D* pRects)
 609 {
 610    VK_OUTARRAY_MAKE(out, pRects, pRectCount);
 611
 612    vk_outarray_append(&out, rect) {
 613       /* We don't know a size so just return the usual "I don't know." */
 614       *rect = (VkRect2D) {
 615          .offset = { 0, 0 },
 616          .extent = { -1, -1 },
 617       };
 618    }
 619
 620    return vk_outarray_status(&out);
 621 }
 622
 623 VkResult wsi_create_wl_surface(const VkAllocationCallbacks *pAllocator,
 624                                const VkWaylandSurfaceCreateInfoKHR *pCreateInfo,
 625                                VkSurfaceKHR *pSurface)
 626 {
 627    VkIcdSurfaceWayland *surface;
 628
 629    surface = vk_alloc(pAllocator, sizeof *surface, 8,
 630                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 631    if (surface == NULL)
 632       return VK_ERROR_OUT_OF_HOST_MEMORY;
 633
 634    surface->base.platform = VK_ICD_WSI_PLATFORM_WAYLAND;
 635    surface->display = pCreateInfo->display;
 636    surface->surface = pCreateInfo->surface;
 637
 638    *pSurface = VkIcdSurfaceBase_to_handle(&surface->base);
 639
 640    return VK_SUCCESS;
 641 }
 642
 643 struct wsi_wl_image {
 644    struct wsi_image                             base;
 645    struct wl_buffer *                           buffer;
 646    bool                                         busy;
 647 };
 648
 649 struct wsi_wl_swapchain {
 650    struct wsi_swapchain                        base;
 651
 652    struct wsi_wl_display                        *display;
 653
 654    struct wl_surface *                          surface;
 655    uint32_t                                     surface_version;
 656    struct wl_drm *                              drm_wrapper;
 657    struct wl_callback *                         frame;
 658
 659    VkExtent2D                                   extent;
 660    VkFormat                                     vk_format;
 661    uint32_t                                     drm_format;
 662
 663    VkPresentModeKHR                             present_mode;
 664    bool                                         fifo_ready;
 665
 666    struct wsi_wl_image                          images[0];
 667 };
 668
 669 static struct wsi_image *
 670 wsi_wl_swapchain_get_wsi_image(struct wsi_swapchain *wsi_chain,
 671                                uint32_t image_index)
 672 {
 673    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 674    return &chain->images[image_index].base;
 675 }
 676
 677 static VkResult
 678 wsi_wl_swapchain_acquire_next_image(struct wsi_swapchain *wsi_chain,
 679                                     const VkAcquireNextImageInfoKHR *info,
 680                                     uint32_t *image_index)
 681 {
 682    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 683
 684    int ret = wl_display_dispatch_queue_pending(chain->display->wl_display,
 685                                                chain->display->queue);
 686    /* XXX: I'm not sure if out-of-date is the right error here.  If
 687     * wl_display_dispatch_queue_pending fails it most likely means we got
 688     * kicked by the server so this seems more-or-less correct.
 689     */
 690    if (ret < 0)
 691       return VK_ERROR_OUT_OF_DATE_KHR;
 692
 693    while (1) {
 694       for (uint32_t i = 0; i < chain->base.image_count; i++) {
 695          if (!chain->images[i].busy) {
 696             /* We found a non-busy image */
 697             *image_index = i;
 698             chain->images[i].busy = true;
 699             return VK_SUCCESS;
 700          }
 701       }
 702
 703       /* This time we do a blocking dispatch because we can't go
 704        * anywhere until we get an event.
 705        */
 706       int ret = wl_display_roundtrip_queue(chain->display->wl_display,
 707                                            chain->display->queue);
 708       if (ret < 0)
 709          return VK_ERROR_OUT_OF_DATE_KHR;
 710    }
 711 }
 712
 713 static void
 714 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 715 {
 716    struct wsi_wl_swapchain *chain = data;
 717
 718    chain->frame = NULL;
 719    chain->fifo_ready = true;
 720
 721    wl_callback_destroy(callback);
 722 }
 723
 724 static const struct wl_callback_listener frame_listener = {
 725    frame_handle_done,
 726 };
 727
 728 static VkResult
 729 wsi_wl_swapchain_queue_present(struct wsi_swapchain *wsi_chain,
 730                                uint32_t image_index,
 731                                const VkPresentRegionKHR *damage)
 732 {
 733    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 734
 735    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 736       while (!chain->fifo_ready) {
 737          int ret = wl_display_dispatch_queue(chain->display->wl_display,
 738                                              chain->display->queue);
 739          if (ret < 0)
 740             return VK_ERROR_OUT_OF_DATE_KHR;
 741       }
 742    }
 743
 744    assert(image_index < chain->base.image_count);
 745    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 746
 747    if (chain->surface_version >= 4 && damage &&
 748        damage->pRectangles && damage->rectangleCount > 0) {
 749       for (unsigned i = 0; i < damage->rectangleCount; i++) {
 750          const VkRectLayerKHR *rect = &damage->pRectangles[i];
 751          assert(rect->layer == 0);
 752          wl_surface_damage_buffer(chain->surface,
 753                                   rect->offset.x, rect->offset.y,
 754                                   rect->extent.width, rect->extent.height);
 755       }
 756    } else {
 757       wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 758    }
 759
 760    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 761       chain->frame = wl_surface_frame(chain->surface);
 762       wl_callback_add_listener(chain->frame, &frame_listener, chain);
 763       chain->fifo_ready = false;
 764    }
 765
 766    chain->images[image_index].busy = true;
 767    wl_surface_commit(chain->surface);
 768    wl_display_flush(chain->display->wl_display);
 769
 770    return VK_SUCCESS;
 771 }
 772
 773 static void
 774 buffer_handle_release(void *data, struct wl_buffer *buffer)
 775 {
 776    struct wsi_wl_image *image = data;
 777
 778    assert(image->buffer == buffer);
 779
 780    image->busy = false;
 781 }
 782
 783 static const struct wl_buffer_listener buffer_listener = {
 784    buffer_handle_release,
 785 };
 786
 787 static VkResult
 788 wsi_wl_image_init(struct wsi_wl_swapchain *chain,
 789                   struct wsi_wl_image *image,
 790                   const VkSwapchainCreateInfoKHR *pCreateInfo,
 791                   const VkAllocationCallbacks* pAllocator)
 792 {
 793    struct wsi_wl_display *display = chain->display;
 794    const uint64_t *modifiers = NULL;
 795    uint32_t num_modifiers = 0;
 796    VkResult result;
 797
 798    if (display->dmabuf && chain->base.wsi->supports_modifiers) {
 799       switch (chain->drm_format) {
 800       case WL_DRM_FORMAT_ARGB8888:
 801          modifiers = u_vector_tail(&display->modifiers.argb8888);
 802          num_modifiers = u_vector_length(&display->modifiers.argb8888);
 803          break;
 804       case WL_DRM_FORMAT_XRGB8888:
 805          modifiers = u_vector_tail(&display->modifiers.xrgb8888);
 806          num_modifiers = u_vector_length(&display->modifiers.xrgb8888);
 807          break;
 808       default:
 809          break;
 810       }
 811    }
 812
 813    result = wsi_create_native_image(&chain->base, pCreateInfo,
 814                                     num_modifiers > 0 ? 1 : 0,
 815                                     &num_modifiers, &modifiers,
 816                                     &image->base);
 817
 818    if (result != VK_SUCCESS)
 819       return result;
 820
 821    if (image->base.drm_modifier != DRM_FORMAT_MOD_INVALID) {
 822       /* Only request modifiers if we have dmabuf, else it must be implicit. */
 823       assert(display->dmabuf);
 824
 825       struct zwp_linux_buffer_params_v1 *params =
 826          zwp_linux_dmabuf_v1_create_params(display->dmabuf);
 827       wl_proxy_set_queue((struct wl_proxy *) params, chain->display->queue);
 828
 829       for (int i = 0; i < image->base.num_planes; i++) {
 830          zwp_linux_buffer_params_v1_add(params,
 831                                         image->base.fds[i],
 832                                         i,
 833                                         image->base.offsets[i],
 834                                         image->base.row_pitches[i],
 835                                         image->base.drm_modifier >> 32,
 836                                         image->base.drm_modifier & 0xffffffff);
 837          close(image->base.fds[i]);
 838       }
 839
 840       image->buffer =
 841          zwp_linux_buffer_params_v1_create_immed(params,
 842                                                  chain->extent.width,
 843                                                  chain->extent.height,
 844                                                  chain->drm_format,
 845                                                  0);
 846       zwp_linux_buffer_params_v1_destroy(params);
 847    } else {
 848       /* Without passing modifiers, we can't have multi-plane RGB images. */
 849       assert(image->base.num_planes == 1);
 850
 851       image->buffer =
 852          wl_drm_create_prime_buffer(chain->drm_wrapper,
 853                                     image->base.fds[0], /* name */
 854                                     chain->extent.width,
 855                                     chain->extent.height,
 856                                     chain->drm_format,
 857                                     image->base.offsets[0],
 858                                     image->base.row_pitches[0],
 859                                     0, 0, 0, 0 /* unused */);
 860       close(image->base.fds[0]);
 861    }
 862
 863    if (!image->buffer)
 864       goto fail_image;
 865
 866    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 867
 868    return VK_SUCCESS;
 869
 870 fail_image:
 871    wsi_destroy_image(&chain->base, &image->base);
 872
 873    return result;
 874 }
 875
 876 static VkResult
 877 wsi_wl_swapchain_destroy(struct wsi_swapchain *wsi_chain,
 878                          const VkAllocationCallbacks *pAllocator)
 879 {
 880    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 881
 882    for (uint32_t i = 0; i < chain->base.image_count; i++) {
 883       if (chain->images[i].buffer) {
 884          wl_buffer_destroy(chain->images[i].buffer);
 885          wsi_destroy_image(&chain->base, &chain->images[i].base);
 886       }
 887    }
 888
 889    if (chain->frame)
 890       wl_callback_destroy(chain->frame);
 891    if (chain->surface)
 892       wl_proxy_wrapper_destroy(chain->surface);
 893    if (chain->drm_wrapper)
 894       wl_proxy_wrapper_destroy(chain->drm_wrapper);
 895
 896    if (chain->display)
 897       wsi_wl_display_unref(chain->display);
 898
 899    wsi_swapchain_finish(&chain->base);
 900
 901    vk_free(pAllocator, chain);
 902
 903    return VK_SUCCESS;
 904 }
 905
 906 static VkResult
 907 wsi_wl_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
 908                                 VkDevice device,
 909                                 struct wsi_device *wsi_device,
 910                                 const VkSwapchainCreateInfoKHR* pCreateInfo,
 911                                 const VkAllocationCallbacks* pAllocator,
 912                                 struct wsi_swapchain **swapchain_out)
 913 {
 914    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 915    struct wsi_wayland *wsi =
 916       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 917    struct wsi_wl_swapchain *chain;
 918    VkResult result;
 919
 920    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
 921
 922    int num_images = pCreateInfo->minImageCount;
 923
 924    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 925    chain = vk_alloc(pAllocator, size, 8,
 926                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 927    if (chain == NULL)
 928       return VK_ERROR_OUT_OF_HOST_MEMORY;
 929
 930    result = wsi_swapchain_init(wsi_device, &chain->base, device,
 931                                pCreateInfo, pAllocator);
 932    if (result != VK_SUCCESS) {
 933       vk_free(pAllocator, chain);
 934       return result;
 935    }
 936
 937    /* Mark a bunch of stuff as NULL.  This way we can just call
 938     * destroy_swapchain for cleanup.
 939     */
 940    for (uint32_t i = 0; i < num_images; i++)
 941       chain->images[i].buffer = NULL;
 942    chain->surface = NULL;
 943    chain->drm_wrapper = NULL;
 944    chain->frame = NULL;
 945
 946    bool alpha = pCreateInfo->compositeAlpha ==
 947                       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 948
 949    chain->base.destroy = wsi_wl_swapchain_destroy;
 950    chain->base.get_wsi_image = wsi_wl_swapchain_get_wsi_image;
 951    chain->base.acquire_next_image = wsi_wl_swapchain_acquire_next_image;
 952    chain->base.queue_present = wsi_wl_swapchain_queue_present;
 953    chain->base.present_mode = pCreateInfo->presentMode;
 954    chain->base.image_count = num_images;
 955    chain->extent = pCreateInfo->imageExtent;
 956    chain->vk_format = pCreateInfo->imageFormat;
 957    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, alpha);
 958
 959    if (pCreateInfo->oldSwapchain) {
 960       /* If we have an oldSwapchain parameter, copy the display struct over
 961        * from the old one so we don't have to fully re-initialize it.
 962        */
 963       struct wsi_wl_swapchain *old_chain = (void *)pCreateInfo->oldSwapchain;
 964       chain->display = wsi_wl_display_ref(old_chain->display);
 965    } else {
 966       chain->display = NULL;
 967       result = wsi_wl_display_create(wsi, surface->display, &chain->display);
 968       if (result != VK_SUCCESS)
 969          goto fail;
 970    }
 971
 972    chain->surface = wl_proxy_create_wrapper(surface->surface);
 973    if (!chain->surface) {
 974       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 975       goto fail;
 976    }
 977    wl_proxy_set_queue((struct wl_proxy *) chain->surface,
 978                       chain->display->queue);
 979    chain->surface_version = wl_proxy_get_version((void *)surface->surface);
 980
 981    chain->drm_wrapper = wl_proxy_create_wrapper(chain->display->drm);
 982    if (!chain->drm_wrapper) {
 983       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 984       goto fail;
 985    }
 986    wl_proxy_set_queue((struct wl_proxy *) chain->drm_wrapper,
 987                       chain->display->queue);
 988
 989    chain->fifo_ready = true;
 990
 991    for (uint32_t i = 0; i < chain->base.image_count; i++) {
 992       result = wsi_wl_image_init(chain, &chain->images[i],
 993                                  pCreateInfo, pAllocator);
 994       if (result != VK_SUCCESS)
 995          goto fail;
 996       chain->images[i].busy = false;
 997    }
 998
 999    *swapchain_out = &chain->base;
1000
1001    return VK_SUCCESS;
1002
1003 fail:
1004    wsi_wl_swapchain_destroy(&chain->base, pAllocator);
1005
1006    return result;
1007 }
1008
1009 VkResult
1010 wsi_wl_init_wsi(struct wsi_device *wsi_device,
1011                 const VkAllocationCallbacks *alloc,
1012                 VkPhysicalDevice physical_device)
1013 {
1014    struct wsi_wayland *wsi;
1015    VkResult result;
1016
1017    wsi = vk_alloc(alloc, sizeof(*wsi), 8,
1018                    VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
1019    if (!wsi) {
1020       result = VK_ERROR_OUT_OF_HOST_MEMORY;
1021       goto fail;
1022    }
1023
1024    wsi->physical_device = physical_device;
1025    wsi->alloc = alloc;
1026    wsi->wsi = wsi_device;
1027
1028    wsi->base.get_support = wsi_wl_surface_get_support;
1029    wsi->base.get_capabilities2 = wsi_wl_surface_get_capabilities2;
1030    wsi->base.get_formats = wsi_wl_surface_get_formats;
1031    wsi->base.get_formats2 = wsi_wl_surface_get_formats2;
1032    wsi->base.get_present_modes = wsi_wl_surface_get_present_modes;
1033    wsi->base.get_present_rectangles = wsi_wl_surface_get_present_rectangles;
1034    wsi->base.create_swapchain = wsi_wl_surface_create_swapchain;
1035
1036    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = &wsi->base;
1037
1038    return VK_SUCCESS;
1039
1040 fail:
1041    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = NULL;
1042
1043    return result;
1044 }
1045
1046 void
1047 wsi_wl_finish_wsi(struct wsi_device *wsi_device,
1048                   const VkAllocationCallbacks *alloc)
1049 {
1050    struct wsi_wayland *wsi =
1051       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
1052    if (!wsi)
1053       return;
1054
1055    vk_free(alloc, wsi);
1056 }