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/u_format.h"
  33 #include "util/u_inlines.h"
  34 #include "util/u_memory.h"
  35
  36 #include "state_tracker/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 = 0;
 108
 109       if (templ->bind & PIPE_BIND_VERTEX_BUFFER)
 110          bci.usage |= VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
 111
 112       if (templ->bind & PIPE_BIND_INDEX_BUFFER)
 113          bci.usage |= VK_BUFFER_USAGE_INDEX_BUFFER_BIT;
 114
 115       if (templ->bind & PIPE_BIND_CONSTANT_BUFFER)
 116          bci.usage |= VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
 117
 118       if (templ->bind & PIPE_BIND_SHADER_BUFFER)
 119          bci.usage |= VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
 120
 121       if (templ->bind & PIPE_BIND_COMMAND_ARGS_BUFFER)
 122          bci.usage |= VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT;
 123
 124       if (templ->usage == PIPE_USAGE_STAGING)
 125          bci.usage |= VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
 126
 127       if (vkCreateBuffer(screen->dev, &bci, NULL, &res->buffer) !=
 128           VK_SUCCESS) {
 129          FREE(res);
 130          return NULL;
 131       }
 132
 133       vkGetBufferMemoryRequirements(screen->dev, res->buffer, &reqs);
 134       flags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
 135    } else {
 136       res->format = zink_get_format(templ->format);
 137
 138       VkImageCreateInfo ici = {};
 139       ici.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
 140
 141       switch (templ->target) {
 142       case PIPE_TEXTURE_1D:
 143       case PIPE_TEXTURE_1D_ARRAY:
 144          ici.imageType = VK_IMAGE_TYPE_1D;
 145          break;
 146
 147       case PIPE_TEXTURE_CUBE:
 148       case PIPE_TEXTURE_CUBE_ARRAY:
 149          ici.flags = VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
 150          /* fall-through */
 151       case PIPE_TEXTURE_2D:
 152       case PIPE_TEXTURE_2D_ARRAY:
 153       case PIPE_TEXTURE_RECT:
 154          ici.imageType = VK_IMAGE_TYPE_2D;
 155          break;
 156
 157       case PIPE_TEXTURE_3D:
 158          ici.imageType = VK_IMAGE_TYPE_3D;
 159          if (templ->bind & PIPE_BIND_RENDER_TARGET)
 160             ici.flags = VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT;
 161          break;
 162
 163       case PIPE_BUFFER:
 164          unreachable("PIPE_BUFFER should already be handled");
 165
 166       default:
 167          unreachable("Unknown target");
 168       }
 169
 170       ici.format = res->format;
 171       ici.extent.width = templ->width0;
 172       ici.extent.height = templ->height0;
 173       ici.extent.depth = templ->depth0;
 174       ici.mipLevels = templ->last_level + 1;
 175       ici.arrayLayers = templ->array_size;
 176       ici.samples = templ->nr_samples ? templ->nr_samples : VK_SAMPLE_COUNT_1_BIT;
 177       ici.tiling = templ->bind & PIPE_BIND_LINEAR ? VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL;
 178
 179       if (templ->target == PIPE_TEXTURE_CUBE ||
 180           templ->target == PIPE_TEXTURE_CUBE_ARRAY)
 181          ici.arrayLayers *= 6;
 182
 183       if (templ->bind & (PIPE_BIND_DISPLAY_TARGET |
 184                          PIPE_BIND_SCANOUT |
 185                          PIPE_BIND_SHARED)) {
 186          // assert(ici.tiling == VK_IMAGE_TILING_LINEAR);
 187          ici.tiling = VK_IMAGE_TILING_LINEAR;
 188       }
 189
 190       if (templ->usage == PIPE_USAGE_STAGING)
 191          ici.tiling = VK_IMAGE_TILING_LINEAR;
 192
 193       /* sadly, gallium doesn't let us know if it'll ever need this, so we have to assume */
 194       ici.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
 195
 196       if (templ->bind & PIPE_BIND_SAMPLER_VIEW)
 197          ici.usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
 198
 199       if (templ->bind & PIPE_BIND_SHADER_IMAGE)
 200          ici.usage |= VK_IMAGE_USAGE_STORAGE_BIT;
 201
 202       if (templ->bind & PIPE_BIND_RENDER_TARGET)
 203          ici.usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 204
 205       if (templ->bind & PIPE_BIND_DEPTH_STENCIL)
 206          ici.usage |= VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
 207
 208       if (templ->flags & PIPE_RESOURCE_FLAG_SPARSE)
 209          ici.usage |= VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT;
 210
 211       if (templ->bind & PIPE_BIND_STREAM_OUTPUT)
 212          ici.usage |= VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT;
 213
 214       ici.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
 215       ici.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
 216       res->layout = VK_IMAGE_LAYOUT_UNDEFINED;
 217
 218       VkResult result = vkCreateImage(screen->dev, &ici, NULL, &res->image);
 219       if (result != VK_SUCCESS) {
 220          FREE(res);
 221          return NULL;
 222       }
 223
 224       res->optimial_tiling = ici.tiling != VK_IMAGE_TILING_LINEAR;
 225       res->aspect = aspect_from_format(templ->format);
 226
 227       vkGetImageMemoryRequirements(screen->dev, res->image, &reqs);
 228       if (templ->usage == PIPE_USAGE_STAGING || (screen->winsys && (templ->bind & (PIPE_BIND_SCANOUT|PIPE_BIND_DISPLAY_TARGET|PIPE_BIND_SHARED))))
 229         flags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
 230       else
 231         flags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
 232    }
 233
 234    VkMemoryAllocateInfo mai = {};
 235    mai.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
 236    mai.allocationSize = reqs.size;
 237    mai.memoryTypeIndex = get_memory_type_index(screen, &reqs, flags);
 238
 239    VkExportMemoryAllocateInfo emai = {};
 240    if (templ->bind & PIPE_BIND_SHARED) {
 241       emai.sType = VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO;
 242       emai.handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT;
 243       mai.pNext = &emai;
 244    }
 245
 246    VkImportMemoryFdInfoKHR imfi = {
 247       VK_STRUCTURE_TYPE_IMPORT_MEMORY_FD_INFO_KHR,
 248       NULL,
 249    };
 250
 251    if (whandle && whandle->type == WINSYS_HANDLE_TYPE_FD) {
 252       imfi.sType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT;
 253       imfi.pNext = NULL;
 254       imfi.handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT;
 255       imfi.fd = whandle->handle;
 256
 257       emai.pNext = &imfi;
 258    }
 259
 260    if (vkAllocateMemory(screen->dev, &mai, NULL, &res->mem) != VK_SUCCESS)
 261       goto fail;
 262
 263    res->offset = 0;
 264    res->size = reqs.size;
 265
 266    if (templ->target == PIPE_BUFFER)
 267       vkBindBufferMemory(screen->dev, res->buffer, res->mem, res->offset);
 268    else
 269       vkBindImageMemory(screen->dev, res->image, res->mem, res->offset);
 270
 271    if (screen->winsys && (templ->bind & (PIPE_BIND_DISPLAY_TARGET |
 272                                          PIPE_BIND_SCANOUT |
 273                                          PIPE_BIND_SHARED))) {
 274       struct sw_winsys *winsys = screen->winsys;
 275       res->dt = winsys->displaytarget_create(screen->winsys,
 276                                              res->base.bind,
 277                                              res->base.format,
 278                                              templ->width0,
 279                                              templ->height0,
 280                                              64, NULL,
 281                                              &res->dt_stride);
 282    }
 283
 284    return &res->base;
 285
 286 fail:
 287    if (templ->target == PIPE_BUFFER)
 288       vkDestroyBuffer(screen->dev, res->buffer, NULL);
 289    else
 290       vkDestroyImage(screen->dev, res->image, NULL);
 291
 292    FREE(res);
 293
 294    return NULL;
 295 }
 296
 297 static struct pipe_resource *
 298 zink_resource_create(struct pipe_screen *pscreen,
 299                      const struct pipe_resource *templ)
 300 {
 301    return resource_create(pscreen, templ, NULL, 0);
 302 }
 303
 304 static bool
 305 zink_resource_get_handle(struct pipe_screen *pscreen,
 306                          struct pipe_context *context,
 307                          struct pipe_resource *tex,
 308                          struct winsys_handle *whandle,
 309                          unsigned usage)
 310 {
 311    struct zink_resource *res = zink_resource(tex);
 312    struct zink_screen *screen = zink_screen(pscreen);
 313    VkMemoryGetFdInfoKHR fd_info = {};
 314    int fd;
 315
 316    if (res->base.target != PIPE_BUFFER) {
 317       VkImageSubresource sub_res = {};
 318       VkSubresourceLayout sub_res_layout = {};
 319
 320       sub_res.aspectMask = res->aspect;
 321
 322       vkGetImageSubresourceLayout(screen->dev, res->image, &sub_res, &sub_res_layout);
 323
 324       whandle->stride = sub_res_layout.rowPitch;
 325    }
 326
 327    if (whandle->type == WINSYS_HANDLE_TYPE_FD) {
 328
 329       if (!screen->vk_GetMemoryFdKHR)
 330          screen->vk_GetMemoryFdKHR = (PFN_vkGetMemoryFdKHR)vkGetDeviceProcAddr(screen->dev, "vkGetMemoryFdKHR");
 331       if (!screen->vk_GetMemoryFdKHR)
 332          return false;
 333       fd_info.sType = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR;
 334       fd_info.memory = res->mem;
 335       fd_info.handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT;
 336       VkResult result = (*screen->vk_GetMemoryFdKHR)(screen->dev, &fd_info, &fd);
 337       if (result != VK_SUCCESS)
 338          return false;
 339       whandle->handle = fd;
 340    }
 341    return true;
 342 }
 343
 344 static struct pipe_resource *
 345 zink_resource_from_handle(struct pipe_screen *pscreen,
 346                  const struct pipe_resource *templ,
 347                  struct winsys_handle *whandle,
 348                  unsigned usage)
 349 {
 350    return resource_create(pscreen, templ, whandle, usage);
 351 }
 352
 353 void
 354 zink_screen_resource_init(struct pipe_screen *pscreen)
 355 {
 356    pscreen->resource_create = zink_resource_create;
 357    pscreen->resource_destroy = zink_resource_destroy;
 358    pscreen->resource_get_handle = zink_resource_get_handle;
 359    pscreen->resource_from_handle = zink_resource_from_handle;
 360 }
 361
 362 static bool
 363 zink_transfer_copy_bufimage(struct zink_context *ctx,
 364                             struct zink_resource *res,
 365                             struct zink_resource *staging_res,
 366                             struct zink_transfer *trans,
 367                             bool buf2img)
 368 {
 369    struct zink_batch *batch = zink_batch_no_rp(ctx);
 370
 371    if (res->layout != VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL &&
 372        res->layout != VK_IMAGE_LAYOUT_GENERAL) {
 373       zink_resource_barrier(batch->cmdbuf, res, res->aspect,
 374                             VK_IMAGE_LAYOUT_GENERAL);
 375       res->layout = VK_IMAGE_LAYOUT_GENERAL;
 376    }
 377
 378    VkBufferImageCopy copyRegion = {};
 379    copyRegion.bufferOffset = staging_res->offset;
 380    copyRegion.bufferRowLength = 0;
 381    copyRegion.bufferImageHeight = 0;
 382    copyRegion.imageSubresource.mipLevel = trans->base.level;
 383    copyRegion.imageSubresource.layerCount = 1;
 384    if (res->base.array_size > 1) {
 385       copyRegion.imageSubresource.baseArrayLayer = trans->base.box.z;
 386       copyRegion.imageSubresource.layerCount = trans->base.box.depth;
 387       copyRegion.imageExtent.depth = 1;
 388    } else {
 389       copyRegion.imageOffset.z = trans->base.box.z;
 390       copyRegion.imageExtent.depth = trans->base.box.depth;
 391    }
 392    copyRegion.imageOffset.x = trans->base.box.x;
 393    copyRegion.imageOffset.y = trans->base.box.y;
 394
 395    copyRegion.imageExtent.width = trans->base.box.width;
 396    copyRegion.imageExtent.height = trans->base.box.height;
 397
 398    zink_batch_reference_resoure(batch, res);
 399    zink_batch_reference_resoure(batch, staging_res);
 400
 401    unsigned aspects = res->aspect;
 402    while (aspects) {
 403       int aspect = 1 << u_bit_scan(&aspects);
 404       copyRegion.imageSubresource.aspectMask = aspect;
 405
 406       if (buf2img)
 407          vkCmdCopyBufferToImage(batch->cmdbuf, staging_res->buffer, res->image, res->layout, 1, &copyRegion);
 408       else
 409          vkCmdCopyImageToBuffer(batch->cmdbuf, res->image, res->layout, staging_res->buffer, 1, &copyRegion);
 410    }
 411
 412    return true;
 413 }
 414
 415 static void *
 416 zink_transfer_map(struct pipe_context *pctx,
 417                   struct pipe_resource *pres,
 418                   unsigned level,
 419                   unsigned usage,
 420                   const struct pipe_box *box,
 421                   struct pipe_transfer **transfer)
 422 {
 423    struct zink_context *ctx = zink_context(pctx);
 424    struct zink_screen *screen = zink_screen(pctx->screen);
 425    struct zink_resource *res = zink_resource(pres);
 426
 427    struct zink_transfer *trans = slab_alloc(&ctx->transfer_pool);
 428    if (!trans)
 429       return NULL;
 430
 431    memset(trans, 0, sizeof(*trans));
 432    pipe_resource_reference(&trans->base.resource, pres);
 433
 434    trans->base.resource = pres;
 435    trans->base.level = level;
 436    trans->base.usage = usage;
 437    trans->base.box = *box;
 438
 439    void *ptr;
 440    if (pres->target == PIPE_BUFFER) {
 441       VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
 442       if (result != VK_SUCCESS)
 443          return NULL;
 444
 445       trans->base.stride = 0;
 446       trans->base.layer_stride = 0;
 447       ptr = ((uint8_t *)ptr) + box->x;
 448    } else {
 449       if (res->optimial_tiling || ((res->base.usage != PIPE_USAGE_STAGING))) {
 450          trans->base.stride = util_format_get_stride(pres->format, box->width);
 451          trans->base.layer_stride = util_format_get_2d_size(pres->format,
 452                                                             trans->base.stride,
 453                                                             box->height);
 454
 455          struct pipe_resource templ = *pres;
 456          templ.usage = PIPE_USAGE_STAGING;
 457          templ.target = PIPE_BUFFER;
 458          templ.bind = 0;
 459          templ.width0 = trans->base.layer_stride * box->depth;
 460          templ.height0 = templ.depth0 = 0;
 461          templ.last_level = 0;
 462          templ.array_size = 1;
 463          templ.flags = 0;
 464
 465          trans->staging_res = zink_resource_create(pctx->screen, &templ);
 466          if (!trans->staging_res)
 467             return NULL;
 468
 469          struct zink_resource *staging_res = zink_resource(trans->staging_res);
 470
 471          if (usage & PIPE_TRANSFER_READ) {
 472             struct zink_context *ctx = zink_context(pctx);
 473             bool ret = zink_transfer_copy_bufimage(ctx, res,
 474                                                    staging_res, trans,
 475                                                    false);
 476             if (ret == false)
 477                return NULL;
 478
 479             /* need to wait for rendering to finish */
 480             struct pipe_fence_handle *fence = NULL;
 481             pctx->flush(pctx, &fence, PIPE_FLUSH_HINT_FINISH);
 482             if (fence) {
 483                pctx->screen->fence_finish(pctx->screen, NULL, fence,
 484                                           PIPE_TIMEOUT_INFINITE);
 485                pctx->screen->fence_reference(pctx->screen, &fence, NULL);
 486             }
 487          }
 488
 489          VkResult result = vkMapMemory(screen->dev, staging_res->mem,
 490                                        staging_res->offset,
 491                                        staging_res->size, 0, &ptr);
 492          if (result != VK_SUCCESS)
 493             return NULL;
 494
 495       } else {
 496          assert(!res->optimial_tiling);
 497          VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
 498          if (result != VK_SUCCESS)
 499             return NULL;
 500          VkImageSubresource isr = {
 501             res->aspect,
 502             level,
 503             0
 504          };
 505          VkSubresourceLayout srl;
 506          vkGetImageSubresourceLayout(screen->dev, res->image, &isr, &srl);
 507          trans->base.stride = srl.rowPitch;
 508          trans->base.layer_stride = srl.arrayPitch;
 509          ptr = ((uint8_t *)ptr) + box->z * srl.depthPitch +
 510                                   box->y * srl.rowPitch +
 511                                   box->x;
 512       }
 513    }
 514
 515    *transfer = &trans->base;
 516    return ptr;
 517 }
 518
 519 static void
 520 zink_transfer_unmap(struct pipe_context *pctx,
 521                     struct pipe_transfer *ptrans)
 522 {
 523    struct zink_context *ctx = zink_context(pctx);
 524    struct zink_screen *screen = zink_screen(pctx->screen);
 525    struct zink_resource *res = zink_resource(ptrans->resource);
 526    struct zink_transfer *trans = (struct zink_transfer *)ptrans;
 527    if (trans->staging_res) {
 528       struct zink_resource *staging_res = zink_resource(trans->staging_res);
 529       vkUnmapMemory(screen->dev, staging_res->mem);
 530
 531       if (trans->base.usage & PIPE_TRANSFER_WRITE) {
 532          struct zink_context *ctx = zink_context(pctx);
 533
 534          zink_transfer_copy_bufimage(ctx, res, staging_res, trans, true);
 535       }
 536
 537       pipe_resource_reference(&trans->staging_res, NULL);
 538    } else
 539       vkUnmapMemory(screen->dev, res->mem);
 540
 541    pipe_resource_reference(&trans->base.resource, NULL);
 542    slab_free(&ctx->transfer_pool, ptrans);
 543 }
 544
 545 void
 546 zink_context_resource_init(struct pipe_context *pctx)
 547 {
 548    pctx->transfer_map = zink_transfer_map;
 549    pctx->transfer_unmap = zink_transfer_unmap;
 550
 551    pctx->transfer_flush_region = u_default_transfer_flush_region;
 552    pctx->buffer_subdata = u_default_buffer_subdata;
 553    pctx->texture_subdata = u_default_texture_subdata;
 554 }