src/intel/vulkan/anv_image.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 <assert.h>
  25 #include <stdbool.h>
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <fcntl.h>
  29
  30 #include "anv_private.h"
  31
  32 #include "vk_format_info.h"
  33
  34 /**
  35  * Exactly one bit must be set in \a aspect.
  36  */
  37 static isl_surf_usage_flags_t
  38 choose_isl_surf_usage(VkImageUsageFlags vk_usage,
  39                       VkImageAspectFlags aspect)
  40 {
  41    isl_surf_usage_flags_t isl_usage = 0;
  42
  43    /* FINISHME: Support aux surfaces */
  44    isl_usage |= ISL_SURF_USAGE_DISABLE_AUX_BIT;
  45
  46    if (vk_usage & VK_IMAGE_USAGE_SAMPLED_BIT)
  47       isl_usage |= ISL_SURF_USAGE_TEXTURE_BIT;
  48
  49    if (vk_usage & VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT)
  50       isl_usage |= ISL_SURF_USAGE_TEXTURE_BIT;
  51
  52    if (vk_usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
  53       isl_usage |= ISL_SURF_USAGE_RENDER_TARGET_BIT;
  54
  55    if (vk_usage & VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT)
  56       isl_usage |= ISL_SURF_USAGE_CUBE_BIT;
  57
  58    if (vk_usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) {
  59       switch (aspect) {
  60       default:
  61          unreachable("bad VkImageAspect");
  62       case VK_IMAGE_ASPECT_DEPTH_BIT:
  63          isl_usage |= ISL_SURF_USAGE_DEPTH_BIT;
  64          break;
  65       case VK_IMAGE_ASPECT_STENCIL_BIT:
  66          isl_usage |= ISL_SURF_USAGE_STENCIL_BIT;
  67          break;
  68       }
  69    }
  70
  71    if (vk_usage & VK_IMAGE_USAGE_TRANSFER_SRC_BIT) {
  72       /* Meta implements transfers by sampling from the source image. */
  73       isl_usage |= ISL_SURF_USAGE_TEXTURE_BIT;
  74    }
  75
  76    if (vk_usage & VK_IMAGE_USAGE_TRANSFER_DST_BIT) {
  77       /* Meta implements transfers by rendering into the destination image. */
  78       isl_usage |= ISL_SURF_USAGE_RENDER_TARGET_BIT;
  79    }
  80
  81    return isl_usage;
  82 }
  83
  84 /**
  85  * Exactly one bit must be set in \a aspect.
  86  */
  87 static struct anv_surface *
  88 get_surface(struct anv_image *image, VkImageAspectFlags aspect)
  89 {
  90    switch (aspect) {
  91    default:
  92       unreachable("bad VkImageAspect");
  93    case VK_IMAGE_ASPECT_COLOR_BIT:
  94       return &image->color_surface;
  95    case VK_IMAGE_ASPECT_DEPTH_BIT:
  96       return &image->depth_surface;
  97    case VK_IMAGE_ASPECT_STENCIL_BIT:
  98       return &image->stencil_surface;
  99    }
 100 }
 101
 102 /**
 103  * Initialize the anv_image::*_surface selected by \a aspect. Then update the
 104  * image's memory requirements (that is, the image's size and alignment).
 105  *
 106  * Exactly one bit must be set in \a aspect.
 107  */
 108 static VkResult
 109 make_surface(const struct anv_device *dev,
 110              struct anv_image *image,
 111              const struct anv_image_create_info *anv_info,
 112              VkImageAspectFlags aspect)
 113 {
 114    const VkImageCreateInfo *vk_info = anv_info->vk_info;
 115    bool ok UNUSED;
 116
 117    static const enum isl_surf_dim vk_to_isl_surf_dim[] = {
 118       [VK_IMAGE_TYPE_1D] = ISL_SURF_DIM_1D,
 119       [VK_IMAGE_TYPE_2D] = ISL_SURF_DIM_2D,
 120       [VK_IMAGE_TYPE_3D] = ISL_SURF_DIM_3D,
 121    };
 122
 123    /* Translate the Vulkan tiling to an equivalent ISL tiling, then filter the
 124     * result with an optionally provided ISL tiling argument.
 125     */
 126    isl_tiling_flags_t tiling_flags =
 127       (vk_info->tiling == VK_IMAGE_TILING_LINEAR) ?
 128       ISL_TILING_LINEAR_BIT : ISL_TILING_ANY_MASK;
 129
 130    if (anv_info->isl_tiling_flags)
 131       tiling_flags &= anv_info->isl_tiling_flags;
 132
 133    assert(tiling_flags);
 134
 135    struct anv_surface *anv_surf = get_surface(image, aspect);
 136
 137    image->extent = anv_sanitize_image_extent(vk_info->imageType,
 138                                              vk_info->extent);
 139
 140    enum isl_format format = anv_get_isl_format(&dev->info, vk_info->format,
 141                                                aspect, vk_info->tiling);
 142    assert(format != ISL_FORMAT_UNSUPPORTED);
 143
 144    ok = isl_surf_init(&dev->isl_dev, &anv_surf->isl,
 145       .dim = vk_to_isl_surf_dim[vk_info->imageType],
 146       .format = format,
 147       .width = image->extent.width,
 148       .height = image->extent.height,
 149       .depth = image->extent.depth,
 150       .levels = vk_info->mipLevels,
 151       .array_len = vk_info->arrayLayers,
 152       .samples = vk_info->samples,
 153       .min_alignment = 0,
 154       .min_pitch = anv_info->stride,
 155       .usage = choose_isl_surf_usage(image->usage, aspect),
 156       .tiling_flags = tiling_flags);
 157
 158    /* isl_surf_init() will fail only if provided invalid input. Invalid input
 159     * is illegal in Vulkan.
 160     */
 161    assert(ok);
 162
 163    anv_surf->offset = align_u32(image->size, anv_surf->isl.alignment);
 164    image->size = anv_surf->offset + anv_surf->isl.size;
 165    image->alignment = MAX(image->alignment, anv_surf->isl.alignment);
 166
 167    return VK_SUCCESS;
 168 }
 169
 170 /**
 171  * Parameter @a format is required and overrides VkImageCreateInfo::format.
 172  */
 173 static VkImageUsageFlags
 174 anv_image_get_full_usage(const VkImageCreateInfo *info,
 175                          VkImageAspectFlags aspects)
 176 {
 177    VkImageUsageFlags usage = info->usage;
 178
 179    if (info->samples > 1 &&
 180        (usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)) {
 181       /* Meta will resolve the image by binding it as a texture. */
 182       usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
 183    }
 184
 185    if (usage & VK_IMAGE_USAGE_TRANSFER_SRC_BIT) {
 186       /* Meta will transfer from the image by binding it as a texture. */
 187       usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
 188    }
 189
 190    if (usage & VK_IMAGE_USAGE_TRANSFER_DST_BIT) {
 191       /* For non-clear transfer operations, meta will transfer to the image by
 192        * binding it as a color attachment, even if the image format is not
 193        * a color format.
 194        */
 195       usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 196
 197       if (aspects & (VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT)) {
 198          /* vkCmdClearDepthStencilImage() only requires that
 199           * VK_IMAGE_USAGE_TRANSFER_SRC_BIT be set. In particular, it does
 200           * not require VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT. Meta
 201           * clears the image, though, by binding it as a depthstencil
 202           * attachment.
 203           */
 204          usage |= VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
 205       }
 206    }
 207
 208    return usage;
 209 }
 210
 211 VkResult
 212 anv_image_create(VkDevice _device,
 213                  const struct anv_image_create_info *create_info,
 214                  const VkAllocationCallbacks* alloc,
 215                  VkImage *pImage)
 216 {
 217    ANV_FROM_HANDLE(anv_device, device, _device);
 218    const VkImageCreateInfo *pCreateInfo = create_info->vk_info;
 219    struct anv_image *image = NULL;
 220    VkResult r;
 221
 222    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO);
 223
 224    anv_assert(pCreateInfo->mipLevels > 0);
 225    anv_assert(pCreateInfo->arrayLayers > 0);
 226    anv_assert(pCreateInfo->samples > 0);
 227    anv_assert(pCreateInfo->extent.width > 0);
 228    anv_assert(pCreateInfo->extent.height > 0);
 229    anv_assert(pCreateInfo->extent.depth > 0);
 230
 231    image = anv_alloc2(&device->alloc, alloc, sizeof(*image), 8,
 232                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 233    if (!image)
 234       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 235
 236    memset(image, 0, sizeof(*image));
 237    image->type = pCreateInfo->imageType;
 238    image->extent = pCreateInfo->extent;
 239    image->vk_format = pCreateInfo->format;
 240    image->aspects = vk_format_aspects(image->vk_format);
 241    image->levels = pCreateInfo->mipLevels;
 242    image->array_size = pCreateInfo->arrayLayers;
 243    image->samples = pCreateInfo->samples;
 244    image->usage = anv_image_get_full_usage(pCreateInfo, image->aspects);
 245    image->tiling = pCreateInfo->tiling;
 246
 247    uint32_t b;
 248    for_each_bit(b, image->aspects) {
 249       r = make_surface(device, image, create_info, (1 << b));
 250       if (r != VK_SUCCESS)
 251          goto fail;
 252    }
 253
 254    *pImage = anv_image_to_handle(image);
 255
 256    return VK_SUCCESS;
 257
 258 fail:
 259    if (image)
 260       anv_free2(&device->alloc, alloc, image);
 261
 262    return r;
 263 }
 264
 265 VkResult
 266 anv_CreateImage(VkDevice device,
 267                 const VkImageCreateInfo *pCreateInfo,
 268                 const VkAllocationCallbacks *pAllocator,
 269                 VkImage *pImage)
 270 {
 271    return anv_image_create(device,
 272       &(struct anv_image_create_info) {
 273          .vk_info = pCreateInfo,
 274       },
 275       pAllocator,
 276       pImage);
 277 }
 278
 279 void
 280 anv_DestroyImage(VkDevice _device, VkImage _image,
 281                  const VkAllocationCallbacks *pAllocator)
 282 {
 283    ANV_FROM_HANDLE(anv_device, device, _device);
 284
 285    anv_free2(&device->alloc, pAllocator, anv_image_from_handle(_image));
 286 }
 287
 288 static void
 289 anv_surface_get_subresource_layout(struct anv_image *image,
 290                                    struct anv_surface *surface,
 291                                    const VkImageSubresource *subresource,
 292                                    VkSubresourceLayout *layout)
 293 {
 294    /* If we are on a non-zero mip level or array slice, we need to
 295     * calculate a real offset.
 296     */
 297    anv_assert(subresource->mipLevel == 0);
 298    anv_assert(subresource->arrayLayer == 0);
 299
 300    layout->offset = surface->offset;
 301    layout->rowPitch = surface->isl.row_pitch;
 302    layout->depthPitch = isl_surf_get_array_pitch(&surface->isl);
 303    layout->arrayPitch = isl_surf_get_array_pitch(&surface->isl);
 304    layout->size = surface->isl.size;
 305 }
 306
 307 void anv_GetImageSubresourceLayout(
 308     VkDevice                                    device,
 309     VkImage                                     _image,
 310     const VkImageSubresource*                   pSubresource,
 311     VkSubresourceLayout*                        pLayout)
 312 {
 313    ANV_FROM_HANDLE(anv_image, image, _image);
 314
 315    assert(__builtin_popcount(pSubresource->aspectMask) == 1);
 316
 317    switch (pSubresource->aspectMask) {
 318    case VK_IMAGE_ASPECT_COLOR_BIT:
 319       anv_surface_get_subresource_layout(image, &image->color_surface,
 320                                          pSubresource, pLayout);
 321       break;
 322    case VK_IMAGE_ASPECT_DEPTH_BIT:
 323       anv_surface_get_subresource_layout(image, &image->depth_surface,
 324                                          pSubresource, pLayout);
 325       break;
 326    case VK_IMAGE_ASPECT_STENCIL_BIT:
 327       anv_surface_get_subresource_layout(image, &image->stencil_surface,
 328                                          pSubresource, pLayout);
 329       break;
 330    default:
 331       assert(!"Invalid image aspect");
 332    }
 333 }
 334
 335 static struct anv_state
 336 alloc_surface_state(struct anv_device *device,
 337                     struct anv_cmd_buffer *cmd_buffer)
 338 {
 339       if (cmd_buffer) {
 340          return anv_cmd_buffer_alloc_surface_state(cmd_buffer);
 341       } else {
 342          return anv_state_pool_alloc(&device->surface_state_pool, 64, 64);
 343       }
 344 }
 345
 346 static enum isl_channel_select
 347 remap_swizzle(VkComponentSwizzle swizzle, VkComponentSwizzle component,
 348               struct isl_swizzle format_swizzle)
 349 {
 350    if (swizzle == VK_COMPONENT_SWIZZLE_IDENTITY)
 351       swizzle = component;
 352
 353    switch (swizzle) {
 354    case VK_COMPONENT_SWIZZLE_ZERO:  return ISL_CHANNEL_SELECT_ZERO;
 355    case VK_COMPONENT_SWIZZLE_ONE:   return ISL_CHANNEL_SELECT_ONE;
 356    case VK_COMPONENT_SWIZZLE_R:     return format_swizzle.r;
 357    case VK_COMPONENT_SWIZZLE_G:     return format_swizzle.g;
 358    case VK_COMPONENT_SWIZZLE_B:     return format_swizzle.b;
 359    case VK_COMPONENT_SWIZZLE_A:     return format_swizzle.a;
 360    default:
 361       unreachable("Invalid swizzle");
 362    }
 363 }
 364
 365 void
 366 anv_image_view_init(struct anv_image_view *iview,
 367                     struct anv_device *device,
 368                     const VkImageViewCreateInfo* pCreateInfo,
 369                     struct anv_cmd_buffer *cmd_buffer,
 370                     VkImageUsageFlags usage_mask)
 371 {
 372    ANV_FROM_HANDLE(anv_image, image, pCreateInfo->image);
 373    const VkImageSubresourceRange *range = &pCreateInfo->subresourceRange;
 374
 375    assert(range->layerCount > 0);
 376    assert(range->baseMipLevel < image->levels);
 377    assert(image->usage & (VK_IMAGE_USAGE_SAMPLED_BIT |
 378                           VK_IMAGE_USAGE_STORAGE_BIT |
 379                           VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
 380                           VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT));
 381
 382    switch (image->type) {
 383    default:
 384       unreachable("bad VkImageType");
 385    case VK_IMAGE_TYPE_1D:
 386    case VK_IMAGE_TYPE_2D:
 387       assert(range->baseArrayLayer + anv_get_layerCount(image, range) - 1 <= image->array_size);
 388       break;
 389    case VK_IMAGE_TYPE_3D:
 390       assert(range->baseArrayLayer + anv_get_layerCount(image, range) - 1
 391              <= anv_minify(image->extent.depth, range->baseMipLevel));
 392       break;
 393    }
 394
 395    struct anv_surface *surface =
 396       anv_image_get_surface_for_aspect_mask(image, range->aspectMask);
 397
 398    iview->image = image;
 399    iview->bo = image->bo;
 400    iview->offset = image->offset + surface->offset;
 401
 402    iview->aspect_mask = pCreateInfo->subresourceRange.aspectMask;
 403    iview->vk_format = pCreateInfo->format;
 404
 405    struct anv_format format = anv_get_format(&device->info, pCreateInfo->format,
 406                                              range->aspectMask, image->tiling);
 407
 408    iview->base_layer = range->baseArrayLayer;
 409    iview->base_mip = range->baseMipLevel;
 410
 411    struct isl_view isl_view = {
 412       .format = format.isl_format,
 413       .base_level = range->baseMipLevel,
 414       .levels = anv_get_levelCount(image, range),
 415       .base_array_layer = range->baseArrayLayer,
 416       .array_len = anv_get_layerCount(image, range),
 417       .swizzle = {
 418          .r = remap_swizzle(pCreateInfo->components.r,
 419                             VK_COMPONENT_SWIZZLE_R, format.swizzle),
 420          .g = remap_swizzle(pCreateInfo->components.g,
 421                             VK_COMPONENT_SWIZZLE_G, format.swizzle),
 422          .b = remap_swizzle(pCreateInfo->components.b,
 423                             VK_COMPONENT_SWIZZLE_B, format.swizzle),
 424          .a = remap_swizzle(pCreateInfo->components.a,
 425                             VK_COMPONENT_SWIZZLE_A, format.swizzle),
 426       },
 427    };
 428
 429    iview->extent = (VkExtent3D) {
 430       .width  = anv_minify(image->extent.width , range->baseMipLevel),
 431       .height = anv_minify(image->extent.height, range->baseMipLevel),
 432       .depth  = anv_minify(image->extent.depth , range->baseMipLevel),
 433    };
 434
 435    isl_surf_usage_flags_t cube_usage;
 436    if (pCreateInfo->viewType == VK_IMAGE_VIEW_TYPE_CUBE ||
 437        pCreateInfo->viewType == VK_IMAGE_VIEW_TYPE_CUBE_ARRAY) {
 438       cube_usage = ISL_SURF_USAGE_CUBE_BIT;
 439    } else {
 440       cube_usage = 0;
 441    }
 442
 443    if (image->usage & usage_mask & VK_IMAGE_USAGE_SAMPLED_BIT) {
 444       iview->sampler_surface_state = alloc_surface_state(device, cmd_buffer);
 445
 446       isl_view.usage = cube_usage | ISL_SURF_USAGE_TEXTURE_BIT;
 447       isl_surf_fill_state(&device->isl_dev,
 448                           iview->sampler_surface_state.map,
 449                           .surf = &surface->isl,
 450                           .view = &isl_view,
 451                           .mocs = device->default_mocs);
 452
 453       if (!device->info.has_llc)
 454          anv_state_clflush(iview->sampler_surface_state);
 455    } else {
 456       iview->sampler_surface_state.alloc_size = 0;
 457    }
 458
 459    /* This is kind-of hackish.  It is possible, due to get_full_usage above,
 460     * to get a surface state with a non-renderable format but with
 461     * VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT.  This happens in particular for
 462     * formats which aren't renderable but where we want to use Vulkan copy
 463     * commands so VK_IMAGE_USAGE_TRANSFER_DST_BIT is set.  In the case of a
 464     * copy, meta will use a format that we can render to, but most of the rest
 465     * of the time, we don't want to create those surface states.  Once we
 466     * start using blorp for copies, this problem will go away and we can
 467     * remove a lot of hacks.
 468     */
 469    if ((image->usage & usage_mask & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT) &&
 470        isl_format_supports_rendering(&device->info, isl_view.format)) {
 471       iview->color_rt_surface_state = alloc_surface_state(device, cmd_buffer);
 472
 473       isl_view.usage = cube_usage | ISL_SURF_USAGE_RENDER_TARGET_BIT;
 474       isl_surf_fill_state(&device->isl_dev,
 475                           iview->color_rt_surface_state.map,
 476                           .surf = &surface->isl,
 477                           .view = &isl_view,
 478                           .mocs = device->default_mocs);
 479
 480       if (!device->info.has_llc)
 481          anv_state_clflush(iview->color_rt_surface_state);
 482    } else {
 483       iview->color_rt_surface_state.alloc_size = 0;
 484    }
 485
 486    /* NOTE: This one needs to go last since it may stomp isl_view.format */
 487    if (image->usage & usage_mask & VK_IMAGE_USAGE_STORAGE_BIT) {
 488       iview->storage_surface_state = alloc_surface_state(device, cmd_buffer);
 489
 490       if (isl_has_matching_typed_storage_image_format(&device->info,
 491                                                       format.isl_format)) {
 492          isl_view.usage = cube_usage | ISL_SURF_USAGE_STORAGE_BIT;
 493          isl_view.format = isl_lower_storage_image_format(&device->info,
 494                                                           isl_view.format);
 495          isl_surf_fill_state(&device->isl_dev,
 496                              iview->storage_surface_state.map,
 497                              .surf = &surface->isl,
 498                              .view = &isl_view,
 499                              .mocs = device->default_mocs);
 500       } else {
 501          anv_fill_buffer_surface_state(device, iview->storage_surface_state,
 502                                        ISL_FORMAT_RAW,
 503                                        iview->offset,
 504                                        iview->bo->size - iview->offset, 1);
 505       }
 506
 507       isl_surf_fill_image_param(&device->isl_dev,
 508                                 &iview->storage_image_param,
 509                                 &surface->isl, &isl_view);
 510
 511       if (!device->info.has_llc)
 512          anv_state_clflush(iview->storage_surface_state);
 513    } else {
 514       iview->storage_surface_state.alloc_size = 0;
 515    }
 516 }
 517
 518 VkResult
 519 anv_CreateImageView(VkDevice _device,
 520                     const VkImageViewCreateInfo *pCreateInfo,
 521                     const VkAllocationCallbacks *pAllocator,
 522                     VkImageView *pView)
 523 {
 524    ANV_FROM_HANDLE(anv_device, device, _device);
 525    struct anv_image_view *view;
 526
 527    view = anv_alloc2(&device->alloc, pAllocator, sizeof(*view), 8,
 528                      VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 529    if (view == NULL)
 530       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 531
 532    anv_image_view_init(view, device, pCreateInfo, NULL, ~0);
 533
 534    *pView = anv_image_view_to_handle(view);
 535
 536    return VK_SUCCESS;
 537 }
 538
 539 void
 540 anv_DestroyImageView(VkDevice _device, VkImageView _iview,
 541                      const VkAllocationCallbacks *pAllocator)
 542 {
 543    ANV_FROM_HANDLE(anv_device, device, _device);
 544    ANV_FROM_HANDLE(anv_image_view, iview, _iview);
 545
 546    if (iview->color_rt_surface_state.alloc_size > 0) {
 547       anv_state_pool_free(&device->surface_state_pool,
 548                           iview->color_rt_surface_state);
 549    }
 550
 551    if (iview->sampler_surface_state.alloc_size > 0) {
 552       anv_state_pool_free(&device->surface_state_pool,
 553                           iview->sampler_surface_state);
 554    }
 555
 556    if (iview->storage_surface_state.alloc_size > 0) {
 557       anv_state_pool_free(&device->surface_state_pool,
 558                           iview->storage_surface_state);
 559    }
 560
 561    anv_free2(&device->alloc, pAllocator, iview);
 562 }
 563
 564
 565 void anv_buffer_view_init(struct anv_buffer_view *view,
 566                           struct anv_device *device,
 567                           const VkBufferViewCreateInfo* pCreateInfo,
 568                           struct anv_cmd_buffer *cmd_buffer)
 569 {
 570    ANV_FROM_HANDLE(anv_buffer, buffer, pCreateInfo->buffer);
 571
 572    /* TODO: Handle the format swizzle? */
 573
 574    view->format = anv_get_isl_format(&device->info, pCreateInfo->format,
 575                                      VK_IMAGE_ASPECT_COLOR_BIT,
 576                                      VK_IMAGE_TILING_LINEAR);
 577    const uint32_t format_bs = isl_format_get_layout(view->format)->bpb / 8;
 578    view->bo = buffer->bo;
 579    view->offset = buffer->offset + pCreateInfo->offset;
 580    view->range = pCreateInfo->range == VK_WHOLE_SIZE ?
 581                  buffer->size - pCreateInfo->offset : pCreateInfo->range;
 582    view->range = align_down_npot_u32(view->range, format_bs);
 583
 584    if (buffer->usage & VK_BUFFER_USAGE_UNIFORM_TEXEL_BUFFER_BIT) {
 585       view->surface_state = alloc_surface_state(device, cmd_buffer);
 586
 587       anv_fill_buffer_surface_state(device, view->surface_state,
 588                                     view->format,
 589                                     view->offset, view->range, format_bs);
 590    } else {
 591       view->surface_state = (struct anv_state){ 0 };
 592    }
 593
 594    if (buffer->usage & VK_BUFFER_USAGE_STORAGE_TEXEL_BUFFER_BIT) {
 595       view->storage_surface_state = alloc_surface_state(device, cmd_buffer);
 596
 597       enum isl_format storage_format =
 598          isl_has_matching_typed_storage_image_format(&device->info,
 599                                                      view->format) ?
 600          isl_lower_storage_image_format(&device->info, view->format) :
 601          ISL_FORMAT_RAW;
 602
 603       anv_fill_buffer_surface_state(device, view->storage_surface_state,
 604                                     storage_format,
 605                                     view->offset, view->range,
 606                                     (storage_format == ISL_FORMAT_RAW ? 1 :
 607                                      isl_format_get_layout(storage_format)->bpb / 8));
 608
 609       isl_buffer_fill_image_param(&device->isl_dev,
 610                                   &view->storage_image_param,
 611                                   view->format, view->range);
 612    } else {
 613       view->storage_surface_state = (struct anv_state){ 0 };
 614    }
 615 }
 616
 617 VkResult
 618 anv_CreateBufferView(VkDevice _device,
 619                      const VkBufferViewCreateInfo *pCreateInfo,
 620                      const VkAllocationCallbacks *pAllocator,
 621                      VkBufferView *pView)
 622 {
 623    ANV_FROM_HANDLE(anv_device, device, _device);
 624    struct anv_buffer_view *view;
 625
 626    view = anv_alloc2(&device->alloc, pAllocator, sizeof(*view), 8,
 627                      VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 628    if (!view)
 629       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 630
 631    anv_buffer_view_init(view, device, pCreateInfo, NULL);
 632
 633    *pView = anv_buffer_view_to_handle(view);
 634
 635    return VK_SUCCESS;
 636 }
 637
 638 void
 639 anv_DestroyBufferView(VkDevice _device, VkBufferView bufferView,
 640                       const VkAllocationCallbacks *pAllocator)
 641 {
 642    ANV_FROM_HANDLE(anv_device, device, _device);
 643    ANV_FROM_HANDLE(anv_buffer_view, view, bufferView);
 644
 645    if (view->surface_state.alloc_size > 0)
 646       anv_state_pool_free(&device->surface_state_pool,
 647                           view->surface_state);
 648
 649    if (view->storage_surface_state.alloc_size > 0)
 650       anv_state_pool_free(&device->surface_state_pool,
 651                           view->storage_surface_state);
 652
 653    anv_free2(&device->alloc, pAllocator, view);
 654 }
 655
 656 struct anv_surface *
 657 anv_image_get_surface_for_aspect_mask(struct anv_image *image, VkImageAspectFlags aspect_mask)
 658 {
 659    switch (aspect_mask) {
 660    case VK_IMAGE_ASPECT_COLOR_BIT:
 661       /* Dragons will eat you.
 662        *
 663        * Meta attaches all destination surfaces as color render targets. Guess
 664        * what surface the Meta Dragons really want.
 665        */
 666       if (image->aspects & VK_IMAGE_ASPECT_DEPTH_BIT) {
 667          return &image->depth_surface;
 668       } else if (image->aspects & VK_IMAGE_ASPECT_STENCIL_BIT) {
 669          return &image->stencil_surface;
 670       } else {
 671          assert(image->aspects == VK_IMAGE_ASPECT_COLOR_BIT);
 672          return &image->color_surface;
 673       }
 674       break;
 675    case VK_IMAGE_ASPECT_DEPTH_BIT:
 676       assert(image->aspects & VK_IMAGE_ASPECT_DEPTH_BIT);
 677       return &image->depth_surface;
 678    case VK_IMAGE_ASPECT_STENCIL_BIT:
 679       assert(image->aspects & VK_IMAGE_ASPECT_STENCIL_BIT);
 680       return &image->stencil_surface;
 681    case VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT:
 682       /* FINISHME: The Vulkan spec (git a511ba2) requires support for
 683        * combined depth stencil formats. Specifically, it states:
 684        *
 685        *    At least one of ename:VK_FORMAT_D24_UNORM_S8_UINT or
 686        *    ename:VK_FORMAT_D32_SFLOAT_S8_UINT must be supported.
 687        *
 688        * Image views with both depth and stencil aspects are only valid for
 689        * render target attachments, in which case
 690        * cmd_buffer_emit_depth_stencil() will pick out both the depth and
 691        * stencil surfaces from the underlying surface.
 692        */
 693       if (image->aspects & VK_IMAGE_ASPECT_DEPTH_BIT) {
 694          return &image->depth_surface;
 695       } else {
 696          assert(image->aspects == VK_IMAGE_ASPECT_STENCIL_BIT);
 697          return &image->stencil_surface;
 698       }
 699     default:
 700        unreachable("image does not have aspect");
 701        return NULL;
 702    }
 703 }