src/gallium/drivers/zink/zink_resource.c

   1 /*
   2  * Copyright 2018 Collabora Ltd.
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "zink_resource.h"
  25
  26 #include "zink_batch.h"
  27 #include "zink_context.h"
  28 #include "zink_screen.h"
  29
  30 #include "util/slab.h"
  31 #include "util/u_debug.h"
  32 #include "util/format/u_format.h"
  33 #include "util/u_inlines.h"
  34 #include "util/u_memory.h"
  35
  36 #include "frontend/sw_winsys.h"
  37
  38 static void
  39 zink_resource_destroy(struct pipe_screen *pscreen,
  40                       struct pipe_resource *pres)
  41 {
  42    struct zink_screen *screen = zink_screen(pscreen);
  43    struct zink_resource *res = zink_resource(pres);
  44    if (pres->target == PIPE_BUFFER)
  45       vkDestroyBuffer(screen->dev, res->buffer, NULL);
  46    else
  47       vkDestroyImage(screen->dev, res->image, NULL);
  48
  49    vkFreeMemory(screen->dev, res->mem, NULL);
  50    FREE(res);
  51 }
  52
  53 static uint32_t
  54 get_memory_type_index(struct zink_screen *screen,
  55                       const VkMemoryRequirements *reqs,
  56                       VkMemoryPropertyFlags props)
  57 {
  58    for (uint32_t i = 0u; i < VK_MAX_MEMORY_TYPES; i++) {
  59       if (((reqs->memoryTypeBits >> i) & 1) == 1) {
  60          if ((screen->mem_props.memoryTypes[i].propertyFlags & props) == props) {
  61             return i;
  62             break;
  63          }
  64       }
  65    }
  66
  67    unreachable("Unsupported memory-type");
  68    return 0;
  69 }
  70
  71 static VkImageAspectFlags
  72 aspect_from_format(enum pipe_format fmt)
  73 {
  74    if (util_format_is_depth_or_stencil(fmt)) {
  75       VkImageAspectFlags aspect = 0;
  76       const struct util_format_description *desc = util_format_description(fmt);
  77       if (util_format_has_depth(desc))
  78          aspect |= VK_IMAGE_ASPECT_DEPTH_BIT;
  79       if (util_format_has_stencil(desc))
  80          aspect |= VK_IMAGE_ASPECT_STENCIL_BIT;
  81       return aspect;
  82    } else
  83      return VK_IMAGE_ASPECT_COLOR_BIT;
  84 }
  85
  86 static struct pipe_resource *
  87 resource_create(struct pipe_screen *pscreen,
  88                 const struct pipe_resource *templ,
  89                 struct winsys_handle *whandle,
  90                 unsigned external_usage)
  91 {
  92    struct zink_screen *screen = zink_screen(pscreen);
  93    struct zink_resource *res = CALLOC_STRUCT(zink_resource);
  94
  95    res->base = *templ;
  96
  97    pipe_reference_init(&res->base.reference, 1);
  98    res->base.screen = pscreen;
  99
 100    VkMemoryRequirements reqs;
 101    VkMemoryPropertyFlags flags = 0;
 102    if (templ->target == PIPE_BUFFER) {
 103       VkBufferCreateInfo bci = {};
 104       bci.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
 105       bci.size = templ->width0;
 106
 107       bci.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT |
 108                   VK_BUFFER_USAGE_TRANSFER_DST_BIT;
 109
 110       if (templ->bind & PIPE_BIND_VERTEX_BUFFER)
 111          bci.usage |= VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
 112
 113       if (templ->bind & PIPE_BIND_INDEX_BUFFER)
 114          bci.usage |= VK_BUFFER_USAGE_INDEX_BUFFER_BIT;
 115
 116       if (templ->bind & PIPE_BIND_CONSTANT_BUFFER)
 117          bci.usage |= VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
 118
 119       if (templ->bind & PIPE_BIND_SHADER_BUFFER)
 120          bci.usage |= VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
 121
 122       if (templ->bind & PIPE_BIND_COMMAND_ARGS_BUFFER)
 123          bci.usage |= VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT;
 124
 125       if (vkCreateBuffer(screen->dev, &bci, NULL, &res->buffer) !=
 126           VK_SUCCESS) {
 127          FREE(res);
 128          return NULL;
 129       }
 130
 131       vkGetBufferMemoryRequirements(screen->dev, res->buffer, &reqs);
 132       flags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
 133    } else {
 134       res->format = zink_get_format(screen, templ->format);
 135
 136       VkImageCreateInfo ici = {};
 137       ici.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
 138       ici.flags = VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT;
 139
 140       switch (templ->target) {
 141       case PIPE_TEXTURE_1D:
 142       case PIPE_TEXTURE_1D_ARRAY:
 143          ici.imageType = VK_IMAGE_TYPE_1D;
 144          break;
 145
 146       case PIPE_TEXTURE_CUBE:
 147       case PIPE_TEXTURE_CUBE_ARRAY:
 148          ici.flags |= VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
 149          /* fall-through */
 150       case PIPE_TEXTURE_2D:
 151       case PIPE_TEXTURE_2D_ARRAY:
 152       case PIPE_TEXTURE_RECT:
 153          ici.imageType = VK_IMAGE_TYPE_2D;
 154          break;
 155
 156       case PIPE_TEXTURE_3D:
 157          ici.imageType = VK_IMAGE_TYPE_3D;
 158          if (templ->bind & PIPE_BIND_RENDER_TARGET)
 159             ici.flags |= VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT;
 160          break;
 161
 162       case PIPE_BUFFER:
 163          unreachable("PIPE_BUFFER should already be handled");
 164
 165       default:
 166          unreachable("Unknown target");
 167       }
 168
 169       ici.format = res->format;
 170       ici.extent.width = templ->width0;
 171       ici.extent.height = templ->height0;
 172       ici.extent.depth = templ->depth0;
 173       ici.mipLevels = templ->last_level + 1;
 174       ici.arrayLayers = templ->array_size;
 175       ici.samples = templ->nr_samples ? templ->nr_samples : VK_SAMPLE_COUNT_1_BIT;
 176       ici.tiling = templ->bind & PIPE_BIND_LINEAR ? VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL;
 177
 178       if (templ->target == PIPE_TEXTURE_CUBE ||
 179           templ->target == PIPE_TEXTURE_CUBE_ARRAY)
 180          ici.arrayLayers *= 6;
 181
 182       if (templ->bind & PIPE_BIND_SHARED)
 183          ici.tiling = VK_IMAGE_TILING_LINEAR;
 184
 185       if (templ->usage == PIPE_USAGE_STAGING)
 186          ici.tiling = VK_IMAGE_TILING_LINEAR;
 187
 188       /* sadly, gallium doesn't let us know if it'll ever need this, so we have to assume */
 189       ici.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 190                   VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 191                   VK_IMAGE_USAGE_SAMPLED_BIT;
 192
 193       if (templ->bind & PIPE_BIND_SHADER_IMAGE)
 194          ici.usage |= VK_IMAGE_USAGE_STORAGE_BIT;
 195
 196       if (templ->bind & PIPE_BIND_RENDER_TARGET)
 197          ici.usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 198
 199       if (templ->bind & PIPE_BIND_DEPTH_STENCIL)
 200          ici.usage |= VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
 201
 202       if (templ->flags & PIPE_RESOURCE_FLAG_SPARSE)
 203          ici.usage |= VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT;
 204
 205       if (templ->bind & PIPE_BIND_STREAM_OUTPUT)
 206          ici.usage |= VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT;
 207
 208       ici.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
 209       ici.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
 210       res->layout = VK_IMAGE_LAYOUT_UNDEFINED;
 211
 212       VkResult result = vkCreateImage(screen->dev, &ici, NULL, &res->image);
 213       if (result != VK_SUCCESS) {
 214          FREE(res);
 215          return NULL;
 216       }
 217
 218       res->optimial_tiling = ici.tiling != VK_IMAGE_TILING_LINEAR;
 219       res->aspect = aspect_from_format(templ->format);
 220
 221       vkGetImageMemoryRequirements(screen->dev, res->image, &reqs);
 222       if (templ->usage == PIPE_USAGE_STAGING || (screen->winsys && (templ->bind & (PIPE_BIND_SCANOUT|PIPE_BIND_DISPLAY_TARGET|PIPE_BIND_SHARED))))
 223         flags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
 224       else
 225         flags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
 226    }
 227
 228    VkMemoryAllocateInfo mai = {};
 229    mai.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
 230    mai.allocationSize = reqs.size;
 231    mai.memoryTypeIndex = get_memory_type_index(screen, &reqs, flags);
 232
 233    VkExportMemoryAllocateInfo emai = {};
 234    if (templ->bind & PIPE_BIND_SHARED) {
 235       emai.sType = VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO;
 236       emai.handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT;
 237       mai.pNext = &emai;
 238    }
 239
 240    VkImportMemoryFdInfoKHR imfi = {
 241       VK_STRUCTURE_TYPE_IMPORT_MEMORY_FD_INFO_KHR,
 242       NULL,
 243    };
 244
 245    if (whandle && whandle->type == WINSYS_HANDLE_TYPE_FD) {
 246       imfi.pNext = NULL;
 247       imfi.handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT;
 248       imfi.fd = whandle->handle;
 249
 250       emai.pNext = &imfi;
 251    }
 252
 253    if (vkAllocateMemory(screen->dev, &mai, NULL, &res->mem) != VK_SUCCESS)
 254       goto fail;
 255
 256    res->offset = 0;
 257    res->size = reqs.size;
 258
 259    if (templ->target == PIPE_BUFFER)
 260       vkBindBufferMemory(screen->dev, res->buffer, res->mem, res->offset);
 261    else
 262       vkBindImageMemory(screen->dev, res->image, res->mem, res->offset);
 263
 264    if (screen->winsys && (templ->bind & (PIPE_BIND_DISPLAY_TARGET |
 265                                          PIPE_BIND_SCANOUT |
 266                                          PIPE_BIND_SHARED))) {
 267       struct sw_winsys *winsys = screen->winsys;
 268       res->dt = winsys->displaytarget_create(screen->winsys,
 269                                              res->base.bind,
 270                                              res->base.format,
 271                                              templ->width0,
 272                                              templ->height0,
 273                                              64, NULL,
 274                                              &res->dt_stride);
 275    }
 276
 277    return &res->base;
 278
 279 fail:
 280    if (templ->target == PIPE_BUFFER)
 281       vkDestroyBuffer(screen->dev, res->buffer, NULL);
 282    else
 283       vkDestroyImage(screen->dev, res->image, NULL);
 284
 285    FREE(res);
 286
 287    return NULL;
 288 }
 289
 290 static struct pipe_resource *
 291 zink_resource_create(struct pipe_screen *pscreen,
 292                      const struct pipe_resource *templ)
 293 {
 294    return resource_create(pscreen, templ, NULL, 0);
 295 }
 296
 297 static bool
 298 zink_resource_get_handle(struct pipe_screen *pscreen,
 299                          struct pipe_context *context,
 300                          struct pipe_resource *tex,
 301                          struct winsys_handle *whandle,
 302                          unsigned usage)
 303 {
 304    struct zink_resource *res = zink_resource(tex);
 305    struct zink_screen *screen = zink_screen(pscreen);
 306    VkMemoryGetFdInfoKHR fd_info = {};
 307    int fd;
 308
 309    if (res->base.target != PIPE_BUFFER) {
 310       VkImageSubresource sub_res = {};
 311       VkSubresourceLayout sub_res_layout = {};
 312
 313       sub_res.aspectMask = res->aspect;
 314
 315       vkGetImageSubresourceLayout(screen->dev, res->image, &sub_res, &sub_res_layout);
 316
 317       whandle->stride = sub_res_layout.rowPitch;
 318    }
 319
 320    if (whandle->type == WINSYS_HANDLE_TYPE_FD) {
 321       fd_info.sType = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR;
 322       fd_info.memory = res->mem;
 323       fd_info.handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT;
 324       VkResult result = (*screen->vk_GetMemoryFdKHR)(screen->dev, &fd_info, &fd);
 325       if (result != VK_SUCCESS)
 326          return false;
 327       whandle->handle = fd;
 328    }
 329    return true;
 330 }
 331
 332 static struct pipe_resource *
 333 zink_resource_from_handle(struct pipe_screen *pscreen,
 334                  const struct pipe_resource *templ,
 335                  struct winsys_handle *whandle,
 336                  unsigned usage)
 337 {
 338    return resource_create(pscreen, templ, whandle, usage);
 339 }
 340
 341 void
 342 zink_screen_resource_init(struct pipe_screen *pscreen)
 343 {
 344    pscreen->resource_create = zink_resource_create;
 345    pscreen->resource_destroy = zink_resource_destroy;
 346
 347    if (zink_screen(pscreen)->have_KHR_external_memory_fd) {
 348       pscreen->resource_get_handle = zink_resource_get_handle;
 349       pscreen->resource_from_handle = zink_resource_from_handle;
 350    }
 351 }
 352
 353 static bool
 354 zink_transfer_copy_bufimage(struct zink_context *ctx,
 355                             struct zink_resource *res,
 356                             struct zink_resource *staging_res,
 357                             struct zink_transfer *trans,
 358                             bool buf2img)
 359 {
 360    struct zink_batch *batch = zink_batch_no_rp(ctx);
 361
 362    if (buf2img) {
 363       if (res->layout != VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL) {
 364          zink_resource_barrier(batch->cmdbuf, res, res->aspect,
 365                                VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
 366       }
 367    } else {
 368       if (res->layout != VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL) {
 369          zink_resource_barrier(batch->cmdbuf, res, res->aspect,
 370                                VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
 371       }
 372    }
 373
 374    VkBufferImageCopy copyRegion = {};
 375    copyRegion.bufferOffset = staging_res->offset;
 376    copyRegion.bufferRowLength = 0;
 377    copyRegion.bufferImageHeight = 0;
 378    copyRegion.imageSubresource.mipLevel = trans->base.level;
 379    copyRegion.imageSubresource.layerCount = 1;
 380    if (res->base.array_size > 1) {
 381       copyRegion.imageSubresource.baseArrayLayer = trans->base.box.z;
 382       copyRegion.imageSubresource.layerCount = trans->base.box.depth;
 383       copyRegion.imageExtent.depth = 1;
 384    } else {
 385       copyRegion.imageOffset.z = trans->base.box.z;
 386       copyRegion.imageExtent.depth = trans->base.box.depth;
 387    }
 388    copyRegion.imageOffset.x = trans->base.box.x;
 389    copyRegion.imageOffset.y = trans->base.box.y;
 390
 391    copyRegion.imageExtent.width = trans->base.box.width;
 392    copyRegion.imageExtent.height = trans->base.box.height;
 393
 394    zink_batch_reference_resoure(batch, res);
 395    zink_batch_reference_resoure(batch, staging_res);
 396
 397    unsigned aspects = res->aspect;
 398    while (aspects) {
 399       int aspect = 1 << u_bit_scan(&aspects);
 400       copyRegion.imageSubresource.aspectMask = aspect;
 401
 402       if (buf2img)
 403          vkCmdCopyBufferToImage(batch->cmdbuf, staging_res->buffer, res->image, res->layout, 1, &copyRegion);
 404       else
 405          vkCmdCopyImageToBuffer(batch->cmdbuf, res->image, res->layout, staging_res->buffer, 1, &copyRegion);
 406    }
 407
 408    return true;
 409 }
 410
 411 static void *
 412 zink_transfer_map(struct pipe_context *pctx,
 413                   struct pipe_resource *pres,
 414                   unsigned level,
 415                   unsigned usage,
 416                   const struct pipe_box *box,
 417                   struct pipe_transfer **transfer)
 418 {
 419    struct zink_context *ctx = zink_context(pctx);
 420    struct zink_screen *screen = zink_screen(pctx->screen);
 421    struct zink_resource *res = zink_resource(pres);
 422
 423    struct zink_transfer *trans = slab_alloc(&ctx->transfer_pool);
 424    if (!trans)
 425       return NULL;
 426
 427    memset(trans, 0, sizeof(*trans));
 428    pipe_resource_reference(&trans->base.resource, pres);
 429
 430    trans->base.resource = pres;
 431    trans->base.level = level;
 432    trans->base.usage = usage;
 433    trans->base.box = *box;
 434
 435    void *ptr;
 436    if (pres->target == PIPE_BUFFER) {
 437       if (usage & PIPE_TRANSFER_READ) {
 438          /* need to wait for rendering to finish
 439           * TODO: optimize/fix this to be much less obtrusive
 440           * mesa/mesa#2966
 441           */
 442          struct pipe_fence_handle *fence = NULL;
 443          pctx->flush(pctx, &fence, PIPE_FLUSH_HINT_FINISH);
 444          if (fence) {
 445             pctx->screen->fence_finish(pctx->screen, NULL, fence,
 446                                        PIPE_TIMEOUT_INFINITE);
 447             pctx->screen->fence_reference(pctx->screen, &fence, NULL);
 448          }
 449       }
 450
 451
 452       VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
 453       if (result != VK_SUCCESS)
 454          return NULL;
 455
 456       trans->base.stride = 0;
 457       trans->base.layer_stride = 0;
 458       ptr = ((uint8_t *)ptr) + box->x;
 459    } else {
 460       if (res->optimial_tiling || ((res->base.usage != PIPE_USAGE_STAGING))) {
 461          trans->base.stride = util_format_get_stride(pres->format, box->width);
 462          trans->base.layer_stride = util_format_get_2d_size(pres->format,
 463                                                             trans->base.stride,
 464                                                             box->height);
 465
 466          struct pipe_resource templ = *pres;
 467          templ.usage = PIPE_USAGE_STAGING;
 468          templ.target = PIPE_BUFFER;
 469          templ.bind = 0;
 470          templ.width0 = trans->base.layer_stride * box->depth;
 471          templ.height0 = templ.depth0 = 0;
 472          templ.last_level = 0;
 473          templ.array_size = 1;
 474          templ.flags = 0;
 475
 476          trans->staging_res = zink_resource_create(pctx->screen, &templ);
 477          if (!trans->staging_res)
 478             return NULL;
 479
 480          struct zink_resource *staging_res = zink_resource(trans->staging_res);
 481
 482          if (usage & PIPE_TRANSFER_READ) {
 483             struct zink_context *ctx = zink_context(pctx);
 484             bool ret = zink_transfer_copy_bufimage(ctx, res,
 485                                                    staging_res, trans,
 486                                                    false);
 487             if (ret == false)
 488                return NULL;
 489
 490             /* need to wait for rendering to finish */
 491             struct pipe_fence_handle *fence = NULL;
 492             pctx->flush(pctx, &fence, PIPE_FLUSH_HINT_FINISH);
 493             if (fence) {
 494                pctx->screen->fence_finish(pctx->screen, NULL, fence,
 495                                           PIPE_TIMEOUT_INFINITE);
 496                pctx->screen->fence_reference(pctx->screen, &fence, NULL);
 497             }
 498          }
 499
 500          VkResult result = vkMapMemory(screen->dev, staging_res->mem,
 501                                        staging_res->offset,
 502                                        staging_res->size, 0, &ptr);
 503          if (result != VK_SUCCESS)
 504             return NULL;
 505
 506       } else {
 507          assert(!res->optimial_tiling);
 508          VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
 509          if (result != VK_SUCCESS)
 510             return NULL;
 511          VkImageSubresource isr = {
 512             res->aspect,
 513             level,
 514             0
 515          };
 516          VkSubresourceLayout srl;
 517          vkGetImageSubresourceLayout(screen->dev, res->image, &isr, &srl);
 518          trans->base.stride = srl.rowPitch;
 519          trans->base.layer_stride = srl.arrayPitch;
 520          ptr = ((uint8_t *)ptr) + box->z * srl.depthPitch +
 521                                   box->y * srl.rowPitch +
 522                                   box->x;
 523       }
 524    }
 525
 526    *transfer = &trans->base;
 527    return ptr;
 528 }
 529
 530 static void
 531 zink_transfer_unmap(struct pipe_context *pctx,
 532                     struct pipe_transfer *ptrans)
 533 {
 534    struct zink_context *ctx = zink_context(pctx);
 535    struct zink_screen *screen = zink_screen(pctx->screen);
 536    struct zink_resource *res = zink_resource(ptrans->resource);
 537    struct zink_transfer *trans = (struct zink_transfer *)ptrans;
 538    if (trans->staging_res) {
 539       struct zink_resource *staging_res = zink_resource(trans->staging_res);
 540       vkUnmapMemory(screen->dev, staging_res->mem);
 541
 542       if (trans->base.usage & PIPE_TRANSFER_WRITE) {
 543          struct zink_context *ctx = zink_context(pctx);
 544
 545          zink_transfer_copy_bufimage(ctx, res, staging_res, trans, true);
 546       }
 547
 548       pipe_resource_reference(&trans->staging_res, NULL);
 549    } else
 550       vkUnmapMemory(screen->dev, res->mem);
 551
 552    pipe_resource_reference(&trans->base.resource, NULL);
 553    slab_free(&ctx->transfer_pool, ptrans);
 554 }
 555
 556 void
 557 zink_context_resource_init(struct pipe_context *pctx)
 558 {
 559    pctx->transfer_map = zink_transfer_map;
 560    pctx->transfer_unmap = zink_transfer_unmap;
 561
 562    pctx->transfer_flush_region = u_default_transfer_flush_region;
 563    pctx->buffer_subdata = u_default_buffer_subdata;
 564    pctx->texture_subdata = u_default_texture_subdata;
 565 }