src/vulkan/anv_meta_resolve.c

   1 /*
   2  * Copyright © 2016 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
  27 #include "anv_meta.h"
  28 #include "anv_private.h"
  29 #include "glsl/nir/nir_builder.h"
  30
  31 /**
  32  * Vertex attributes used by all pipelines.
  33  */
  34 struct vertex_attrs {
  35    struct anv_vue_header vue_header;
  36    float position[2]; /**< 3DPRIM_RECTLIST */
  37    float tex_position[2];
  38 };
  39
  40 static nir_shader *
  41 build_nir_vs(void)
  42 {
  43    const struct glsl_type *vec4 = glsl_vec4_type();
  44
  45    nir_builder b;
  46    nir_variable *a_position;
  47    nir_variable *v_position;
  48    nir_variable *a_tex_position;
  49    nir_variable *v_tex_position;
  50
  51    nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_VERTEX, NULL);
  52    b.shader->info.name = ralloc_strdup(b.shader, "meta_resolve_vs");
  53
  54    a_position = nir_variable_create(b.shader, nir_var_shader_in, vec4,
  55                                     "a_position");
  56    a_position->data.location = VERT_ATTRIB_GENERIC0;
  57
  58    v_position = nir_variable_create(b.shader, nir_var_shader_out, vec4,
  59                                     "gl_Position");
  60    v_position->data.location = VARYING_SLOT_POS;
  61
  62    a_tex_position = nir_variable_create(b.shader, nir_var_shader_in, vec4,
  63                                     "a_tex_position");
  64    a_tex_position->data.location = VERT_ATTRIB_GENERIC1;
  65
  66    v_tex_position = nir_variable_create(b.shader, nir_var_shader_out, vec4,
  67                                     "v_tex_position");
  68    v_tex_position->data.location = VARYING_SLOT_VAR0;
  69
  70    nir_copy_var(&b, v_position, a_position);
  71    nir_copy_var(&b, v_tex_position, a_tex_position);
  72
  73    return b.shader;
  74 }
  75
  76 static nir_shader *
  77 build_nir_fs(uint32_t num_samples)
  78 {
  79    const struct glsl_type *vec4 = glsl_vec4_type();
  80
  81    const struct glsl_type *sampler2DMS =
  82          glsl_sampler_type(GLSL_SAMPLER_DIM_MS,
  83                            /*is_shadow*/ false,
  84                            /*is_array*/ false,
  85                            GLSL_TYPE_FLOAT);
  86
  87    nir_builder b;
  88    nir_variable *u_tex; /* uniform sampler */
  89    nir_variable *v_position; /* vec4, varying fragment position */
  90    nir_variable *v_tex_position; /* vec4, varying texture coordinate */
  91    nir_variable *f_color; /* vec4, fragment output color */
  92    nir_ssa_def *accum; /* vec4, accumulation of sample values */
  93
  94    nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_FRAGMENT, NULL);
  95    b.shader->info.name = ralloc_asprintf(b.shader,
  96                                          "meta_resolve_fs_samples%02d",
  97                                          num_samples);
  98
  99    u_tex = nir_variable_create(b.shader, nir_var_uniform, sampler2DMS,
 100                                    "u_tex");
 101    u_tex->data.descriptor_set = 0;
 102    u_tex->data.binding = 0;
 103
 104    v_position = nir_variable_create(b.shader, nir_var_shader_in, vec4,
 105                                      "v_position");
 106    v_position->data.location = VARYING_SLOT_POS;
 107
 108    v_tex_position = nir_variable_create(b.shader, nir_var_shader_in, vec4,
 109                                     "v_tex_position");
 110    v_tex_position->data.location = VARYING_SLOT_VAR0;
 111
 112    f_color = nir_variable_create(b.shader, nir_var_shader_out, vec4,
 113                                  "f_color");
 114    f_color->data.location = FRAG_RESULT_DATA0;
 115
 116    accum = nir_imm_vec4(&b, 0, 0, 0, 0);
 117
 118    nir_ssa_def *tex_position_ivec =
 119       nir_f2i(&b, nir_load_var(&b, v_tex_position));
 120
 121    for (uint32_t i = 0; i < num_samples; ++i) {
 122       nir_tex_instr *tex;
 123
 124       tex = nir_tex_instr_create(b.shader, /*num_srcs*/ 2);
 125       tex->sampler = nir_deref_var_create(tex, u_tex);
 126       tex->sampler_dim = GLSL_SAMPLER_DIM_MS;
 127       tex->op = nir_texop_txf_ms;
 128       tex->src[0].src = nir_src_for_ssa(tex_position_ivec);
 129       tex->src[0].src_type = nir_tex_src_coord;
 130       tex->src[1].src = nir_src_for_ssa(nir_imm_int(&b, i));
 131       tex->src[1].src_type = nir_tex_src_ms_index;
 132       tex->dest_type = nir_type_float;
 133       tex->is_array = false;
 134       tex->coord_components = 3;
 135       nir_ssa_dest_init(&tex->instr, &tex->dest, /*num_components*/ 4, "tex");
 136       nir_builder_instr_insert(&b, &tex->instr);
 137
 138       accum = nir_fadd(&b, accum, &tex->dest.ssa);
 139    }
 140
 141    accum = nir_fdiv(&b, accum, nir_imm_float(&b, num_samples));
 142    nir_store_var(&b, f_color, accum, /*writemask*/ 4);
 143
 144    return b.shader;
 145 }
 146
 147 static VkResult
 148 create_pass(struct anv_device *device, VkRenderPass *pass_h)
 149 {
 150    VkResult result;
 151    VkDevice device_h = anv_device_to_handle(device);
 152    const VkAllocationCallbacks *alloc = &device->meta_state.alloc;
 153
 154    result = anv_CreateRenderPass(device_h,
 155       &(VkRenderPassCreateInfo) {
 156          .sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
 157          .attachmentCount = 1,
 158          .pAttachments = &(VkAttachmentDescription) {
 159             .format = VK_FORMAT_UNDEFINED, /* Our shaders don't care */
 160             .samples = 1,
 161             .loadOp = VK_ATTACHMENT_LOAD_OP_LOAD,
 162             .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
 163             .initialLayout = VK_IMAGE_LAYOUT_GENERAL,
 164             .finalLayout = VK_IMAGE_LAYOUT_GENERAL,
 165          },
 166          .subpassCount = 1,
 167          .pSubpasses = &(VkSubpassDescription) {
 168             .pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
 169             .inputAttachmentCount = 0,
 170             .colorAttachmentCount = 1,
 171             .pColorAttachments = &(VkAttachmentReference) {
 172                .attachment = 0,
 173                .layout = VK_IMAGE_LAYOUT_GENERAL,
 174             },
 175             .pResolveAttachments = NULL,
 176             .pDepthStencilAttachment = &(VkAttachmentReference) {
 177                .attachment = VK_ATTACHMENT_UNUSED,
 178             },
 179             .preserveAttachmentCount = 0,
 180             .pPreserveAttachments = NULL,
 181          },
 182          .dependencyCount = 0,
 183       },
 184       alloc,
 185       pass_h);
 186
 187    return result;
 188 }
 189
 190 static VkResult
 191 create_pipeline(struct anv_device *device,
 192                 uint32_t num_samples,
 193                 VkShaderModule vs_module_h,
 194                 VkRenderPass pass_h,
 195                 VkPipeline *pipeline_h)
 196 {
 197    VkResult result;
 198    VkDevice device_h = anv_device_to_handle(device);
 199
 200    struct anv_shader_module fs_module = {
 201       .nir = build_nir_fs(num_samples),
 202    };
 203
 204    if (!fs_module.nir) {
 205       /* XXX: Need more accurate error */
 206       result = VK_ERROR_OUT_OF_HOST_MEMORY;
 207       goto fail;
 208    }
 209
 210    result = anv_graphics_pipeline_create(device_h,
 211       VK_NULL_HANDLE,
 212       &(VkGraphicsPipelineCreateInfo) {
 213          .sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
 214          .stageCount = 2,
 215          .pStages = (VkPipelineShaderStageCreateInfo[]) {
 216             {
 217                .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
 218                .stage = VK_SHADER_STAGE_VERTEX_BIT,
 219                .module = vs_module_h,
 220                .pName = "main",
 221             },
 222             {
 223                .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
 224                .stage = VK_SHADER_STAGE_FRAGMENT_BIT,
 225                .module = anv_shader_module_to_handle(&fs_module),
 226                .pName = "main",
 227             },
 228          },
 229          .pVertexInputState = &(VkPipelineVertexInputStateCreateInfo) {
 230             .sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,
 231             .vertexBindingDescriptionCount = 1,
 232             .pVertexBindingDescriptions = (VkVertexInputBindingDescription[]) {
 233                {
 234                   .binding = 0,
 235                   .stride = sizeof(struct vertex_attrs),
 236                   .inputRate = VK_VERTEX_INPUT_RATE_VERTEX
 237                },
 238             },
 239             .vertexAttributeDescriptionCount = 3,
 240             .pVertexAttributeDescriptions = (VkVertexInputAttributeDescription[]) {
 241                {
 242                   /* VUE Header */
 243                   .location = 0,
 244                   .binding = 0,
 245                   .format = VK_FORMAT_R32G32B32A32_UINT,
 246                   .offset = offsetof(struct vertex_attrs, vue_header),
 247                },
 248                {
 249                   /* Position */
 250                   .location = 1,
 251                   .binding = 0,
 252                   .format = VK_FORMAT_R32G32_SFLOAT,
 253                   .offset = offsetof(struct vertex_attrs, position),
 254                },
 255                {
 256                   /* Texture Coordinate */
 257                   .location = 2,
 258                   .binding = 0,
 259                   .format = VK_FORMAT_R32G32_SFLOAT,
 260                   .offset = offsetof(struct vertex_attrs, tex_position),
 261                },
 262             },
 263          },
 264          .pInputAssemblyState = &(VkPipelineInputAssemblyStateCreateInfo) {
 265             .sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
 266             .topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP,
 267             .primitiveRestartEnable = false,
 268          },
 269          .pViewportState = &(VkPipelineViewportStateCreateInfo) {
 270             .sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
 271             .viewportCount = 1,
 272             .scissorCount = 1,
 273          },
 274          .pRasterizationState = &(VkPipelineRasterizationStateCreateInfo) {
 275             .sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
 276             .depthClampEnable = false,
 277             .rasterizerDiscardEnable = false,
 278             .polygonMode = VK_POLYGON_MODE_FILL,
 279             .cullMode = VK_CULL_MODE_NONE,
 280             .frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE,
 281          },
 282          .pMultisampleState = &(VkPipelineMultisampleStateCreateInfo) {
 283             .sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
 284             .rasterizationSamples = 1,
 285             .sampleShadingEnable = false,
 286             .pSampleMask = (VkSampleMask[]) { 0x1 },
 287             .alphaToCoverageEnable = false,
 288             .alphaToOneEnable = false,
 289          },
 290          .pColorBlendState = &(VkPipelineColorBlendStateCreateInfo) {
 291             .sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
 292             .logicOpEnable = false,
 293             .attachmentCount = 1,
 294             .pAttachments = (VkPipelineColorBlendAttachmentState []) {
 295                {
 296                   .colorWriteMask = VK_COLOR_COMPONENT_R_BIT |
 297                                     VK_COLOR_COMPONENT_G_BIT |
 298                                     VK_COLOR_COMPONENT_B_BIT |
 299                                     VK_COLOR_COMPONENT_A_BIT,
 300                },
 301             },
 302          },
 303          .pDynamicState = &(VkPipelineDynamicStateCreateInfo) {
 304             .sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO,
 305             .dynamicStateCount = 2,
 306             .pDynamicStates = (VkDynamicState[]) {
 307                VK_DYNAMIC_STATE_VIEWPORT,
 308                VK_DYNAMIC_STATE_SCISSOR,
 309             },
 310          },
 311          .layout = device->meta_state.resolve.pipeline_layout,
 312          .renderPass = pass_h,
 313          .subpass = 0,
 314       },
 315       &(struct anv_graphics_pipeline_create_info) {
 316          .color_attachment_count = -1,
 317          .use_repclear = false,
 318          .disable_viewport = true,
 319          .disable_scissor = true,
 320          .disable_vs = true,
 321          .use_rectlist = true
 322       },
 323       &device->meta_state.alloc,
 324       pipeline_h);
 325    if (result != VK_SUCCESS)
 326       goto fail;
 327
 328    goto cleanup;
 329
 330 fail:
 331    *pipeline_h = VK_NULL_HANDLE;
 332
 333 cleanup:
 334    ralloc_free(fs_module.nir);
 335    return result;
 336 }
 337
 338 void
 339 anv_device_finish_meta_resolve_state(struct anv_device *device)
 340 {
 341    struct anv_meta_state *state = &device->meta_state;
 342    VkDevice device_h = anv_device_to_handle(device);
 343    VkRenderPass pass_h = device->meta_state.resolve.pass;
 344    VkPipelineLayout pipeline_layout_h = device->meta_state.resolve.pipeline_layout;
 345    VkDescriptorSetLayout ds_layout_h = device->meta_state.resolve.ds_layout;
 346    const VkAllocationCallbacks *alloc = &device->meta_state.alloc;
 347
 348    if (pass_h)
 349       ANV_CALL(DestroyRenderPass)(device_h, pass_h,
 350                                   &device->meta_state.alloc);
 351
 352    if (pipeline_layout_h)
 353       ANV_CALL(DestroyPipelineLayout)(device_h, pipeline_layout_h, alloc);
 354
 355    if (ds_layout_h)
 356       ANV_CALL(DestroyDescriptorSetLayout)(device_h, ds_layout_h, alloc);
 357
 358    for (uint32_t i = 0; i < ARRAY_SIZE(state->resolve.pipelines); ++i) {
 359       VkPipeline pipeline_h = state->resolve.pipelines[i];
 360
 361       if (pipeline_h) {
 362          ANV_CALL(DestroyPipeline)(device_h, pipeline_h, alloc);
 363       }
 364    }
 365 }
 366
 367 VkResult
 368 anv_device_init_meta_resolve_state(struct anv_device *device)
 369 {
 370    VkResult res = VK_SUCCESS;
 371    VkDevice device_h = anv_device_to_handle(device);
 372    const VkAllocationCallbacks *alloc = &device->meta_state.alloc;
 373
 374    const isl_sample_count_mask_t sample_count_mask =
 375       isl_device_get_sample_counts(&device->isl_dev);
 376
 377    zero(device->meta_state.resolve);
 378
 379    struct anv_shader_module vs_module = { .nir = build_nir_vs() };
 380    if (!vs_module.nir) {
 381       /* XXX: Need more accurate error */
 382       res = VK_ERROR_OUT_OF_HOST_MEMORY;
 383       goto fail;
 384    }
 385
 386    VkShaderModule vs_module_h = anv_shader_module_to_handle(&vs_module);
 387
 388    res = anv_CreateDescriptorSetLayout(device_h,
 389       &(VkDescriptorSetLayoutCreateInfo) {
 390          .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
 391          .bindingCount = 1,
 392          .pBindings = (VkDescriptorSetLayoutBinding[]) {
 393             {
 394                .binding = 0,
 395                .descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
 396                .descriptorCount = 1,
 397                .stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT,
 398             },
 399          },
 400       },
 401       alloc,
 402       &device->meta_state.resolve.ds_layout);
 403    if (res != VK_SUCCESS)
 404       goto fail;
 405
 406    res = anv_CreatePipelineLayout(device_h,
 407       &(VkPipelineLayoutCreateInfo) {
 408          .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
 409          .setLayoutCount = 1,
 410          .pSetLayouts = (VkDescriptorSetLayout[]) {
 411             device->meta_state.resolve.ds_layout,
 412          },
 413       },
 414       alloc,
 415       &device->meta_state.resolve.pipeline_layout);
 416    if (res != VK_SUCCESS)
 417       goto fail;
 418
 419
 420    res = create_pass(device, &device->meta_state.resolve.pass);
 421    if (res != VK_SUCCESS)
 422       goto fail;
 423
 424
 425    for (uint32_t i = 0;
 426         i < ARRAY_SIZE(device->meta_state.resolve.pipelines); ++i) {
 427       uint32_t sample_count = 1 << i;
 428
 429       if (!(sample_count_mask & sample_count))
 430          continue;
 431
 432       res = create_pipeline(device, sample_count, vs_module_h,
 433                             device->meta_state.resolve.pass,
 434                             &device->meta_state.resolve.pipelines[i]);
 435       if (res != VK_SUCCESS)
 436          goto fail;
 437    }
 438
 439    goto cleanup;
 440
 441 fail:
 442    anv_device_finish_meta_resolve_state(device);
 443
 444 cleanup:
 445    ralloc_free(vs_module.nir);
 446
 447    return res;
 448 }
 449
 450 static void
 451 emit_resolve(struct anv_cmd_buffer *cmd_buffer,
 452              struct anv_image_view *src_iview,
 453              const VkOffset2D *src_offset,
 454              struct anv_image_view *dest_iview,
 455              const VkOffset2D *dest_offset,
 456              const VkExtent2D *resolve_extent)
 457 {
 458    struct anv_device *device = cmd_buffer->device;
 459    VkDevice device_h = anv_device_to_handle(device);
 460    VkCommandBuffer cmd_buffer_h = anv_cmd_buffer_to_handle(cmd_buffer);
 461    const struct anv_framebuffer *fb = cmd_buffer->state.framebuffer;
 462    const struct anv_image *src_image = src_iview->image;
 463    VkDescriptorPool dummy_desc_pool_h = (VkDescriptorPool) 1;
 464    uint32_t samples_log2 = ffs(src_image->samples) - 1;
 465
 466    const struct vertex_attrs vertex_data[3] = {
 467       {
 468          .vue_header = {0},
 469          .position = {
 470             dest_offset->x + resolve_extent->width,
 471             dest_offset->y + resolve_extent->height,
 472          },
 473          .tex_position = {
 474             src_offset->x + resolve_extent->width,
 475             src_offset->y + resolve_extent->height,
 476          },
 477       },
 478       {
 479          .vue_header = {0},
 480          .position = {
 481             dest_offset->x,
 482             dest_offset->y + resolve_extent->height,
 483          },
 484          .tex_position = {
 485             src_offset->x,
 486             src_offset->y + resolve_extent->height,
 487          },
 488       },
 489       {
 490          .vue_header = {0},
 491          .position = {
 492             dest_offset->x,
 493             dest_offset->y,
 494          },
 495          .tex_position = {
 496             src_offset->x,
 497             src_offset->y,
 498          },
 499       },
 500    };
 501
 502    struct anv_state vertex_mem =
 503       anv_cmd_buffer_emit_dynamic(cmd_buffer, vertex_data,
 504                                   sizeof(vertex_data), 16);
 505
 506    struct anv_buffer vertex_buffer = {
 507       .device = device,
 508       .size = sizeof(vertex_data),
 509       .bo = &cmd_buffer->dynamic_state_stream.block_pool->bo,
 510       .offset = vertex_mem.offset,
 511    };
 512
 513    VkBuffer vertex_buffer_h = anv_buffer_to_handle(&vertex_buffer);
 514
 515    anv_CmdBindVertexBuffers(cmd_buffer_h,
 516       /*firstBinding*/ 0,
 517       /*bindingCount*/ 1,
 518       (VkBuffer[]) { vertex_buffer_h },
 519       (VkDeviceSize[]) { 0 });
 520
 521    VkSampler sampler_h;
 522    ANV_CALL(CreateSampler)(device_h,
 523       &(VkSamplerCreateInfo) {
 524          .sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
 525          .magFilter = VK_FILTER_NEAREST,
 526          .minFilter = VK_FILTER_NEAREST,
 527          .mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST,
 528          .addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
 529          .addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
 530          .addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
 531          .mipLodBias = 0.0,
 532          .anisotropyEnable = false,
 533          .compareEnable = false,
 534          .minLod = 0.0,
 535          .maxLod = 0.0,
 536          .unnormalizedCoordinates = false,
 537       },
 538       &cmd_buffer->pool->alloc,
 539       &sampler_h);
 540
 541    VkDescriptorSet desc_set_h;
 542    anv_AllocateDescriptorSets(device_h,
 543       &(VkDescriptorSetAllocateInfo) {
 544          .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO,
 545          .descriptorPool = dummy_desc_pool_h,
 546          .descriptorSetCount = 1,
 547          .pSetLayouts = (VkDescriptorSetLayout[]) {
 548             device->meta_state.blit.ds_layout,
 549          },
 550       },
 551       &desc_set_h);
 552
 553    ANV_FROM_HANDLE(anv_descriptor_set, desc_set, desc_set_h);
 554
 555    anv_UpdateDescriptorSets(device_h,
 556       /*writeCount*/ 1,
 557       (VkWriteDescriptorSet[]) {
 558          {
 559             .sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
 560             .dstSet = desc_set_h,
 561             .dstBinding = 0,
 562             .dstArrayElement = 0,
 563             .descriptorCount = 1,
 564             .descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
 565             .pImageInfo = (VkDescriptorImageInfo[]) {
 566                {
 567                   .sampler = sampler_h,
 568                   .imageView = anv_image_view_to_handle(src_iview),
 569                   .imageLayout = VK_IMAGE_LAYOUT_GENERAL,
 570                },
 571             },
 572          },
 573       },
 574       /*copyCount*/ 0,
 575       /*copies */ NULL);
 576
 577    ANV_CALL(CmdSetViewport)(cmd_buffer_h,
 578       /*firstViewport*/ 0,
 579       /*viewportCount*/ 1,
 580       (VkViewport[]) {
 581          {
 582             .x = 0,
 583             .y = 0,
 584             .width = fb->width,
 585             .height = fb->height,
 586             .minDepth = 0.0,
 587             .maxDepth = 1.0,
 588          },
 589       });
 590
 591    ANV_CALL(CmdSetScissor)(cmd_buffer_h,
 592       /*firstScissor*/ 0,
 593       /*scissorCount*/ 1,
 594       (VkRect2D[]) {
 595          {
 596             .offset = { 0, 0 },
 597             .extent = (VkExtent2D) { fb->width, fb->height },
 598          },
 599       });
 600
 601    VkPipeline pipeline_h = device->meta_state.resolve.pipelines[samples_log2];
 602    ANV_FROM_HANDLE(anv_pipeline, pipeline, pipeline_h);
 603
 604    if (cmd_buffer->state.pipeline != pipeline) {
 605       anv_CmdBindPipeline(cmd_buffer_h, VK_PIPELINE_BIND_POINT_GRAPHICS,
 606                           pipeline_h);
 607    }
 608
 609    anv_CmdBindDescriptorSets(cmd_buffer_h,
 610       VK_PIPELINE_BIND_POINT_GRAPHICS,
 611       device->meta_state.resolve.pipeline_layout,
 612       /*firstSet*/ 0,
 613       /* setCount */ 1,
 614       (VkDescriptorSet[]) {
 615          desc_set_h,
 616       },
 617       /*copyCount*/ 0,
 618       /*copies */ NULL);
 619
 620    ANV_CALL(CmdDraw)(cmd_buffer_h, 3, 1, 0, 0);
 621
 622    /* All objects below are consumed by the draw call. We may safely destroy
 623     * them.
 624     */
 625    anv_descriptor_set_destroy(device, desc_set);
 626    anv_DestroySampler(device_h, sampler_h,
 627                       &cmd_buffer->pool->alloc);
 628 }
 629
 630 void anv_CmdResolveImage(
 631     VkCommandBuffer                             cmd_buffer_h,
 632     VkImage                                     src_image_h,
 633     VkImageLayout                               src_image_layout,
 634     VkImage                                     dest_image_h,
 635     VkImageLayout                               dest_image_layout,
 636     uint32_t                                    region_count,
 637     const VkImageResolve*                       regions)
 638 {
 639    ANV_FROM_HANDLE(anv_cmd_buffer, cmd_buffer, cmd_buffer_h);
 640    ANV_FROM_HANDLE(anv_image, src_image, src_image_h);
 641    ANV_FROM_HANDLE(anv_image, dest_image, dest_image_h);
 642    struct anv_device *device = cmd_buffer->device;
 643    struct anv_meta_saved_state state;
 644    VkDevice device_h = anv_device_to_handle(device);
 645
 646    anv_meta_save(&state, cmd_buffer, 0);
 647
 648    assert(src_image->samples > 1);
 649    assert(dest_image->samples == 1);
 650
 651    if (src_image->samples >= 16) {
 652       /* See commit aa3f9aaf31e9056a255f9e0472ebdfdaa60abe54 for the
 653        * glBlitFramebuffer workaround for samples >= 16.
 654        */
 655       anv_finishme("vkCmdResolveImage: need interpolation workaround when "
 656                    "samples >= 16");
 657    }
 658
 659    if (src_image->array_size > 1)
 660       anv_finishme("vkCmdResolveImage: multisample array images");
 661
 662    for (uint32_t r = 0; r < region_count; ++r) {
 663       const VkImageResolve *region = &regions[r];
 664
 665       /* From the Vulkan 1.0 spec:
 666        *
 667        *    - The aspectMask member of srcSubresource and dstSubresource must
 668        *      only contain VK_IMAGE_ASPECT_COLOR_BIT
 669        *
 670        *    - The layerCount member of srcSubresource and dstSubresource must
 671        *      match
 672        */
 673       assert(region->srcSubresource.aspectMask == VK_IMAGE_ASPECT_COLOR_BIT);
 674       assert(region->dstSubresource.aspectMask == VK_IMAGE_ASPECT_COLOR_BIT);
 675       assert(region->srcSubresource.layerCount ==
 676              region->dstSubresource.layerCount);
 677
 678       const uint32_t src_base_layer =
 679          anv_meta_get_iview_layer(src_image, &region->srcSubresource,
 680                                   &region->srcOffset);
 681
 682       const uint32_t dest_base_layer =
 683          anv_meta_get_iview_layer(dest_image, &region->dstSubresource,
 684                                   &region->dstOffset);
 685
 686       for (uint32_t layer = 0; layer < region->srcSubresource.layerCount;
 687            ++layer) {
 688
 689          struct anv_image_view src_iview;
 690          anv_image_view_init(&src_iview, cmd_buffer->device,
 691             &(VkImageViewCreateInfo) {
 692                .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
 693                .image = src_image_h,
 694                .viewType = anv_meta_get_view_type(src_image),
 695                .format = src_image->format->vk_format,
 696                .subresourceRange = {
 697                   .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
 698                   .baseMipLevel = region->srcSubresource.mipLevel,
 699                   .levelCount = 1,
 700                   .baseArrayLayer = src_base_layer + layer,
 701                   .layerCount = 1,
 702                },
 703             },
 704             cmd_buffer, 0);
 705
 706          struct anv_image_view dest_iview;
 707          anv_image_view_init(&dest_iview, cmd_buffer->device,
 708             &(VkImageViewCreateInfo) {
 709                .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
 710                .image = dest_image_h,
 711                .viewType = anv_meta_get_view_type(dest_image),
 712                .format = dest_image->format->vk_format,
 713                .subresourceRange = {
 714                   .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
 715                   .baseMipLevel = region->dstSubresource.mipLevel,
 716                   .levelCount = 1,
 717                   .baseArrayLayer = dest_base_layer + layer,
 718                   .layerCount = 1,
 719                },
 720             },
 721             cmd_buffer, 0);
 722
 723          VkFramebuffer fb_h;
 724          anv_CreateFramebuffer(device_h,
 725             &(VkFramebufferCreateInfo) {
 726                .sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
 727                .attachmentCount = 1,
 728                .pAttachments = (VkImageView[]) {
 729                   anv_image_view_to_handle(&dest_iview),
 730                },
 731                .width = anv_minify(dest_image->extent.width,
 732                                    region->dstSubresource.mipLevel),
 733                .height = anv_minify(dest_image->extent.height,
 734                                     region->dstSubresource.mipLevel),
 735                .layers = 1
 736             },
 737             &cmd_buffer->pool->alloc,
 738             &fb_h);
 739
 740          ANV_CALL(CmdBeginRenderPass)(cmd_buffer_h,
 741             &(VkRenderPassBeginInfo) {
 742                .sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
 743                .renderPass = device->meta_state.resolve.pass,
 744                .framebuffer = fb_h,
 745                .renderArea = {
 746                   .offset = {
 747                      region->dstOffset.x,
 748                      region->dstOffset.y,
 749                   },
 750                   .extent = {
 751                      region->extent.width,
 752                      region->extent.height,
 753                   }
 754                },
 755                .clearValueCount = 0,
 756                .pClearValues = NULL,
 757             },
 758             VK_SUBPASS_CONTENTS_INLINE);
 759
 760          emit_resolve(cmd_buffer,
 761              &src_iview,
 762              &(VkOffset2D) {
 763                .x = region->srcOffset.x,
 764                .y = region->srcOffset.y,
 765              },
 766              &dest_iview,
 767              &(VkOffset2D) {
 768                .x = region->dstOffset.x,
 769                .y = region->dstOffset.y,
 770              },
 771              &(VkExtent2D) {
 772                .width = region->extent.width,
 773                .height = region->extent.height,
 774              });
 775
 776          ANV_CALL(CmdEndRenderPass)(cmd_buffer_h);
 777
 778          anv_DestroyFramebuffer(device_h, fb_h,
 779                                 &cmd_buffer->pool->alloc);
 780       }
 781    }
 782
 783    anv_meta_restore(&state, cmd_buffer);
 784 }