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-uapi/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                                 struct wsi_device *wsi_device,
 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    caps->maxImageExtent = (VkExtent2D) {
 499       wsi_device->maxImageDimension2D,
 500       wsi_device->maxImageDimension2D,
 501    };
 502
 503    caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 504    caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
 505    caps->maxImageArrayLayers = 1;
 506
 507    caps->supportedCompositeAlpha =
 508       VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
 509       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 510
 511    caps->supportedUsageFlags =
 512       VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 513       VK_IMAGE_USAGE_SAMPLED_BIT |
 514       VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 515       VK_IMAGE_USAGE_STORAGE_BIT |
 516       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 517
 518    return VK_SUCCESS;
 519 }
 520
 521 static VkResult
 522 wsi_wl_surface_get_capabilities2(VkIcdSurfaceBase *surface,
 523                                  struct wsi_device *wsi_device,
 524                                  const void *info_next,
 525                                  VkSurfaceCapabilities2KHR* caps)
 526 {
 527    assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR);
 528
 529    VkResult result =
 530       wsi_wl_surface_get_capabilities(surface, wsi_device,
 531                                       &caps->surfaceCapabilities);
 532
 533    vk_foreach_struct(ext, caps->pNext) {
 534       switch (ext->sType) {
 535       case VK_STRUCTURE_TYPE_SURFACE_PROTECTED_CAPABILITIES_KHR: {
 536          VkSurfaceProtectedCapabilitiesKHR *protected = (void *)ext;
 537          protected->supportsProtected = VK_FALSE;
 538          break;
 539       }
 540
 541       default:
 542          /* Ignored */
 543          break;
 544       }
 545    }
 546
 547    return result;
 548 }
 549
 550 static VkResult
 551 wsi_wl_surface_get_formats(VkIcdSurfaceBase *icd_surface,
 552                            struct wsi_device *wsi_device,
 553                            uint32_t* pSurfaceFormatCount,
 554                            VkSurfaceFormatKHR* pSurfaceFormats)
 555 {
 556    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 557    struct wsi_wayland *wsi =
 558       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 559
 560    struct wsi_wl_display display;
 561    if (wsi_wl_display_init(wsi, &display, surface->display, true))
 562       return VK_ERROR_SURFACE_LOST_KHR;
 563
 564    VK_OUTARRAY_MAKE(out, pSurfaceFormats, pSurfaceFormatCount);
 565
 566    VkFormat *disp_fmt;
 567    u_vector_foreach(disp_fmt, &display.formats) {
 568       vk_outarray_append(&out, out_fmt) {
 569          out_fmt->format = *disp_fmt;
 570          out_fmt->colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 571       }
 572    }
 573
 574    wsi_wl_display_finish(&display);
 575
 576    return vk_outarray_status(&out);
 577 }
 578
 579 static VkResult
 580 wsi_wl_surface_get_formats2(VkIcdSurfaceBase *icd_surface,
 581                             struct wsi_device *wsi_device,
 582                             const void *info_next,
 583                             uint32_t* pSurfaceFormatCount,
 584                             VkSurfaceFormat2KHR* pSurfaceFormats)
 585 {
 586    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 587    struct wsi_wayland *wsi =
 588       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 589
 590    struct wsi_wl_display display;
 591    if (wsi_wl_display_init(wsi, &display, surface->display, true))
 592       return VK_ERROR_SURFACE_LOST_KHR;
 593
 594    VK_OUTARRAY_MAKE(out, pSurfaceFormats, pSurfaceFormatCount);
 595
 596    VkFormat *disp_fmt;
 597    u_vector_foreach(disp_fmt, &display.formats) {
 598       vk_outarray_append(&out, out_fmt) {
 599          out_fmt->surfaceFormat.format = *disp_fmt;
 600          out_fmt->surfaceFormat.colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 601       }
 602    }
 603
 604    wsi_wl_display_finish(&display);
 605
 606    return vk_outarray_status(&out);
 607 }
 608
 609 static VkResult
 610 wsi_wl_surface_get_present_modes(VkIcdSurfaceBase *surface,
 611                                  uint32_t* pPresentModeCount,
 612                                  VkPresentModeKHR* pPresentModes)
 613 {
 614    if (pPresentModes == NULL) {
 615       *pPresentModeCount = ARRAY_SIZE(present_modes);
 616       return VK_SUCCESS;
 617    }
 618
 619    *pPresentModeCount = MIN2(*pPresentModeCount, ARRAY_SIZE(present_modes));
 620    typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
 621
 622    if (*pPresentModeCount < ARRAY_SIZE(present_modes))
 623       return VK_INCOMPLETE;
 624    else
 625       return VK_SUCCESS;
 626 }
 627
 628 static VkResult
 629 wsi_wl_surface_get_present_rectangles(VkIcdSurfaceBase *surface,
 630                                       struct wsi_device *wsi_device,
 631                                       uint32_t* pRectCount,
 632                                       VkRect2D* pRects)
 633 {
 634    VK_OUTARRAY_MAKE(out, pRects, pRectCount);
 635
 636    vk_outarray_append(&out, rect) {
 637       /* We don't know a size so just return the usual "I don't know." */
 638       *rect = (VkRect2D) {
 639          .offset = { 0, 0 },
 640          .extent = { -1, -1 },
 641       };
 642    }
 643
 644    return vk_outarray_status(&out);
 645 }
 646
 647 VkResult wsi_create_wl_surface(const VkAllocationCallbacks *pAllocator,
 648                                const VkWaylandSurfaceCreateInfoKHR *pCreateInfo,
 649                                VkSurfaceKHR *pSurface)
 650 {
 651    VkIcdSurfaceWayland *surface;
 652
 653    surface = vk_alloc(pAllocator, sizeof *surface, 8,
 654                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 655    if (surface == NULL)
 656       return VK_ERROR_OUT_OF_HOST_MEMORY;
 657
 658    surface->base.platform = VK_ICD_WSI_PLATFORM_WAYLAND;
 659    surface->display = pCreateInfo->display;
 660    surface->surface = pCreateInfo->surface;
 661
 662    *pSurface = VkIcdSurfaceBase_to_handle(&surface->base);
 663
 664    return VK_SUCCESS;
 665 }
 666
 667 struct wsi_wl_image {
 668    struct wsi_image                             base;
 669    struct wl_buffer *                           buffer;
 670    bool                                         busy;
 671 };
 672
 673 struct wsi_wl_swapchain {
 674    struct wsi_swapchain                        base;
 675
 676    struct wsi_wl_display                        *display;
 677
 678    struct wl_surface *                          surface;
 679    uint32_t                                     surface_version;
 680    struct wl_drm *                              drm_wrapper;
 681    struct wl_callback *                         frame;
 682
 683    VkExtent2D                                   extent;
 684    VkFormat                                     vk_format;
 685    uint32_t                                     drm_format;
 686
 687    VkPresentModeKHR                             present_mode;
 688    bool                                         fifo_ready;
 689
 690    struct wsi_wl_image                          images[0];
 691 };
 692 WSI_DEFINE_NONDISP_HANDLE_CASTS(wsi_wl_swapchain, VkSwapchainKHR)
 693
 694 static struct wsi_image *
 695 wsi_wl_swapchain_get_wsi_image(struct wsi_swapchain *wsi_chain,
 696                                uint32_t image_index)
 697 {
 698    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 699    return &chain->images[image_index].base;
 700 }
 701
 702 static VkResult
 703 wsi_wl_swapchain_acquire_next_image(struct wsi_swapchain *wsi_chain,
 704                                     const VkAcquireNextImageInfoKHR *info,
 705                                     uint32_t *image_index)
 706 {
 707    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 708
 709    int ret = wl_display_dispatch_queue_pending(chain->display->wl_display,
 710                                                chain->display->queue);
 711    /* XXX: I'm not sure if out-of-date is the right error here.  If
 712     * wl_display_dispatch_queue_pending fails it most likely means we got
 713     * kicked by the server so this seems more-or-less correct.
 714     */
 715    if (ret < 0)
 716       return VK_ERROR_OUT_OF_DATE_KHR;
 717
 718    while (1) {
 719       for (uint32_t i = 0; i < chain->base.image_count; i++) {
 720          if (!chain->images[i].busy) {
 721             /* We found a non-busy image */
 722             *image_index = i;
 723             chain->images[i].busy = true;
 724             return VK_SUCCESS;
 725          }
 726       }
 727
 728       /* This time we do a blocking dispatch because we can't go
 729        * anywhere until we get an event.
 730        */
 731       int ret = wl_display_roundtrip_queue(chain->display->wl_display,
 732                                            chain->display->queue);
 733       if (ret < 0)
 734          return VK_ERROR_OUT_OF_DATE_KHR;
 735    }
 736 }
 737
 738 static void
 739 frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial)
 740 {
 741    struct wsi_wl_swapchain *chain = data;
 742
 743    chain->frame = NULL;
 744    chain->fifo_ready = true;
 745
 746    wl_callback_destroy(callback);
 747 }
 748
 749 static const struct wl_callback_listener frame_listener = {
 750    frame_handle_done,
 751 };
 752
 753 static VkResult
 754 wsi_wl_swapchain_queue_present(struct wsi_swapchain *wsi_chain,
 755                                uint32_t image_index,
 756                                const VkPresentRegionKHR *damage)
 757 {
 758    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 759
 760    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 761       while (!chain->fifo_ready) {
 762          int ret = wl_display_dispatch_queue(chain->display->wl_display,
 763                                              chain->display->queue);
 764          if (ret < 0)
 765             return VK_ERROR_OUT_OF_DATE_KHR;
 766       }
 767    }
 768
 769    assert(image_index < chain->base.image_count);
 770    wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0);
 771
 772    if (chain->surface_version >= 4 && damage &&
 773        damage->pRectangles && damage->rectangleCount > 0) {
 774       for (unsigned i = 0; i < damage->rectangleCount; i++) {
 775          const VkRectLayerKHR *rect = &damage->pRectangles[i];
 776          assert(rect->layer == 0);
 777          wl_surface_damage_buffer(chain->surface,
 778                                   rect->offset.x, rect->offset.y,
 779                                   rect->extent.width, rect->extent.height);
 780       }
 781    } else {
 782       wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX);
 783    }
 784
 785    if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR) {
 786       chain->frame = wl_surface_frame(chain->surface);
 787       wl_callback_add_listener(chain->frame, &frame_listener, chain);
 788       chain->fifo_ready = false;
 789    }
 790
 791    chain->images[image_index].busy = true;
 792    wl_surface_commit(chain->surface);
 793    wl_display_flush(chain->display->wl_display);
 794
 795    return VK_SUCCESS;
 796 }
 797
 798 static void
 799 buffer_handle_release(void *data, struct wl_buffer *buffer)
 800 {
 801    struct wsi_wl_image *image = data;
 802
 803    assert(image->buffer == buffer);
 804
 805    image->busy = false;
 806 }
 807
 808 static const struct wl_buffer_listener buffer_listener = {
 809    buffer_handle_release,
 810 };
 811
 812 static VkResult
 813 wsi_wl_image_init(struct wsi_wl_swapchain *chain,
 814                   struct wsi_wl_image *image,
 815                   const VkSwapchainCreateInfoKHR *pCreateInfo,
 816                   const VkAllocationCallbacks* pAllocator)
 817 {
 818    struct wsi_wl_display *display = chain->display;
 819    const uint64_t *modifiers = NULL;
 820    uint32_t num_modifiers = 0;
 821    VkResult result;
 822
 823    if (display->dmabuf && chain->base.wsi->supports_modifiers) {
 824       switch (chain->drm_format) {
 825       case WL_DRM_FORMAT_ARGB8888:
 826          modifiers = u_vector_tail(&display->modifiers.argb8888);
 827          num_modifiers = u_vector_length(&display->modifiers.argb8888);
 828          break;
 829       case WL_DRM_FORMAT_XRGB8888:
 830          modifiers = u_vector_tail(&display->modifiers.xrgb8888);
 831          num_modifiers = u_vector_length(&display->modifiers.xrgb8888);
 832          break;
 833       default:
 834          break;
 835       }
 836    }
 837
 838    result = wsi_create_native_image(&chain->base, pCreateInfo,
 839                                     num_modifiers > 0 ? 1 : 0,
 840                                     &num_modifiers, &modifiers,
 841                                     &image->base);
 842
 843    if (result != VK_SUCCESS)
 844       return result;
 845
 846    if (image->base.drm_modifier != DRM_FORMAT_MOD_INVALID) {
 847       /* Only request modifiers if we have dmabuf, else it must be implicit. */
 848       assert(display->dmabuf);
 849
 850       struct zwp_linux_buffer_params_v1 *params =
 851          zwp_linux_dmabuf_v1_create_params(display->dmabuf);
 852       wl_proxy_set_queue((struct wl_proxy *) params, chain->display->queue);
 853
 854       for (int i = 0; i < image->base.num_planes; i++) {
 855          zwp_linux_buffer_params_v1_add(params,
 856                                         image->base.fds[i],
 857                                         i,
 858                                         image->base.offsets[i],
 859                                         image->base.row_pitches[i],
 860                                         image->base.drm_modifier >> 32,
 861                                         image->base.drm_modifier & 0xffffffff);
 862          close(image->base.fds[i]);
 863       }
 864
 865       image->buffer =
 866          zwp_linux_buffer_params_v1_create_immed(params,
 867                                                  chain->extent.width,
 868                                                  chain->extent.height,
 869                                                  chain->drm_format,
 870                                                  0);
 871       zwp_linux_buffer_params_v1_destroy(params);
 872    } else {
 873       /* Without passing modifiers, we can't have multi-plane RGB images. */
 874       assert(image->base.num_planes == 1);
 875
 876       image->buffer =
 877          wl_drm_create_prime_buffer(chain->drm_wrapper,
 878                                     image->base.fds[0], /* name */
 879                                     chain->extent.width,
 880                                     chain->extent.height,
 881                                     chain->drm_format,
 882                                     image->base.offsets[0],
 883                                     image->base.row_pitches[0],
 884                                     0, 0, 0, 0 /* unused */);
 885       close(image->base.fds[0]);
 886    }
 887
 888    if (!image->buffer)
 889       goto fail_image;
 890
 891    wl_buffer_add_listener(image->buffer, &buffer_listener, image);
 892
 893    return VK_SUCCESS;
 894
 895 fail_image:
 896    wsi_destroy_image(&chain->base, &image->base);
 897
 898    return result;
 899 }
 900
 901 static VkResult
 902 wsi_wl_swapchain_destroy(struct wsi_swapchain *wsi_chain,
 903                          const VkAllocationCallbacks *pAllocator)
 904 {
 905    struct wsi_wl_swapchain *chain = (struct wsi_wl_swapchain *)wsi_chain;
 906
 907    for (uint32_t i = 0; i < chain->base.image_count; i++) {
 908       if (chain->images[i].buffer) {
 909          wl_buffer_destroy(chain->images[i].buffer);
 910          wsi_destroy_image(&chain->base, &chain->images[i].base);
 911       }
 912    }
 913
 914    if (chain->frame)
 915       wl_callback_destroy(chain->frame);
 916    if (chain->surface)
 917       wl_proxy_wrapper_destroy(chain->surface);
 918    if (chain->drm_wrapper)
 919       wl_proxy_wrapper_destroy(chain->drm_wrapper);
 920
 921    if (chain->display)
 922       wsi_wl_display_unref(chain->display);
 923
 924    wsi_swapchain_finish(&chain->base);
 925
 926    vk_free(pAllocator, chain);
 927
 928    return VK_SUCCESS;
 929 }
 930
 931 static VkResult
 932 wsi_wl_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
 933                                 VkDevice device,
 934                                 struct wsi_device *wsi_device,
 935                                 const VkSwapchainCreateInfoKHR* pCreateInfo,
 936                                 const VkAllocationCallbacks* pAllocator,
 937                                 struct wsi_swapchain **swapchain_out)
 938 {
 939    VkIcdSurfaceWayland *surface = (VkIcdSurfaceWayland *)icd_surface;
 940    struct wsi_wayland *wsi =
 941       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
 942    struct wsi_wl_swapchain *chain;
 943    VkResult result;
 944
 945    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
 946
 947    int num_images = pCreateInfo->minImageCount;
 948
 949    size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
 950    chain = vk_alloc(pAllocator, size, 8,
 951                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 952    if (chain == NULL)
 953       return VK_ERROR_OUT_OF_HOST_MEMORY;
 954
 955    result = wsi_swapchain_init(wsi_device, &chain->base, device,
 956                                pCreateInfo, pAllocator);
 957    if (result != VK_SUCCESS) {
 958       vk_free(pAllocator, chain);
 959       return result;
 960    }
 961
 962    /* Mark a bunch of stuff as NULL.  This way we can just call
 963     * destroy_swapchain for cleanup.
 964     */
 965    for (uint32_t i = 0; i < num_images; i++)
 966       chain->images[i].buffer = NULL;
 967    chain->surface = NULL;
 968    chain->drm_wrapper = NULL;
 969    chain->frame = NULL;
 970
 971    bool alpha = pCreateInfo->compositeAlpha ==
 972                       VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
 973
 974    chain->base.destroy = wsi_wl_swapchain_destroy;
 975    chain->base.get_wsi_image = wsi_wl_swapchain_get_wsi_image;
 976    chain->base.acquire_next_image = wsi_wl_swapchain_acquire_next_image;
 977    chain->base.queue_present = wsi_wl_swapchain_queue_present;
 978    chain->base.present_mode = pCreateInfo->presentMode;
 979    chain->base.image_count = num_images;
 980    chain->extent = pCreateInfo->imageExtent;
 981    chain->vk_format = pCreateInfo->imageFormat;
 982    chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, alpha);
 983
 984    if (pCreateInfo->oldSwapchain) {
 985       /* If we have an oldSwapchain parameter, copy the display struct over
 986        * from the old one so we don't have to fully re-initialize it.
 987        */
 988       WSI_FROM_HANDLE(wsi_wl_swapchain, old_chain, pCreateInfo->oldSwapchain);
 989       chain->display = wsi_wl_display_ref(old_chain->display);
 990    } else {
 991       chain->display = NULL;
 992       result = wsi_wl_display_create(wsi, surface->display, &chain->display);
 993       if (result != VK_SUCCESS)
 994          goto fail;
 995    }
 996
 997    chain->surface = wl_proxy_create_wrapper(surface->surface);
 998    if (!chain->surface) {
 999       result = VK_ERROR_OUT_OF_HOST_MEMORY;
1000       goto fail;
1001    }
1002    wl_proxy_set_queue((struct wl_proxy *) chain->surface,
1003                       chain->display->queue);
1004    chain->surface_version = wl_proxy_get_version((void *)surface->surface);
1005
1006    chain->drm_wrapper = wl_proxy_create_wrapper(chain->display->drm);
1007    if (!chain->drm_wrapper) {
1008       result = VK_ERROR_OUT_OF_HOST_MEMORY;
1009       goto fail;
1010    }
1011    wl_proxy_set_queue((struct wl_proxy *) chain->drm_wrapper,
1012                       chain->display->queue);
1013
1014    chain->fifo_ready = true;
1015
1016    for (uint32_t i = 0; i < chain->base.image_count; i++) {
1017       result = wsi_wl_image_init(chain, &chain->images[i],
1018                                  pCreateInfo, pAllocator);
1019       if (result != VK_SUCCESS)
1020          goto fail;
1021       chain->images[i].busy = false;
1022    }
1023
1024    *swapchain_out = &chain->base;
1025
1026    return VK_SUCCESS;
1027
1028 fail:
1029    wsi_wl_swapchain_destroy(&chain->base, pAllocator);
1030
1031    return result;
1032 }
1033
1034 VkResult
1035 wsi_wl_init_wsi(struct wsi_device *wsi_device,
1036                 const VkAllocationCallbacks *alloc,
1037                 VkPhysicalDevice physical_device)
1038 {
1039    struct wsi_wayland *wsi;
1040    VkResult result;
1041
1042    wsi = vk_alloc(alloc, sizeof(*wsi), 8,
1043                    VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
1044    if (!wsi) {
1045       result = VK_ERROR_OUT_OF_HOST_MEMORY;
1046       goto fail;
1047    }
1048
1049    wsi->physical_device = physical_device;
1050    wsi->alloc = alloc;
1051    wsi->wsi = wsi_device;
1052
1053    wsi->base.get_support = wsi_wl_surface_get_support;
1054    wsi->base.get_capabilities2 = wsi_wl_surface_get_capabilities2;
1055    wsi->base.get_formats = wsi_wl_surface_get_formats;
1056    wsi->base.get_formats2 = wsi_wl_surface_get_formats2;
1057    wsi->base.get_present_modes = wsi_wl_surface_get_present_modes;
1058    wsi->base.get_present_rectangles = wsi_wl_surface_get_present_rectangles;
1059    wsi->base.create_swapchain = wsi_wl_surface_create_swapchain;
1060
1061    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = &wsi->base;
1062
1063    return VK_SUCCESS;
1064
1065 fail:
1066    wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND] = NULL;
1067
1068    return result;
1069 }
1070
1071 void
1072 wsi_wl_finish_wsi(struct wsi_device *wsi_device,
1073                   const VkAllocationCallbacks *alloc)
1074 {
1075    struct wsi_wayland *wsi =
1076       (struct wsi_wayland *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_WAYLAND];
1077    if (!wsi)
1078       return;
1079
1080    vk_free(alloc, wsi);
1081 }