/*
 * Copyright © 2016 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#include <assert.h>
#include <stdbool.h>

#include "radv_meta.h"
#include "radv_private.h"
#include "sid.h"

enum radv_depth_op {
   DEPTH_DECOMPRESS,
   DEPTH_RESUMMARIZE,
};

static nir_shader *
build_expand_depth_stencil_compute_shader(struct radv_device *dev)
{
   const struct glsl_type *img_type = glsl_image_type(GLSL_SAMPLER_DIM_2D, false, GLSL_TYPE_FLOAT);

   nir_builder b = radv_meta_init_shader(MESA_SHADER_COMPUTE, "expand_depth_stencil_compute");

   /* We need at least 8/8/1 to cover an entire HTILE block in a single workgroup. */
   b.shader->info.workgroup_size[0] = 8;
   b.shader->info.workgroup_size[1] = 8;
   nir_variable *input_img = nir_variable_create(b.shader, nir_var_image, img_type, "in_img");
   input_img->data.descriptor_set = 0;
   input_img->data.binding = 0;

   nir_variable *output_img = nir_variable_create(b.shader, nir_var_image, img_type, "out_img");
   output_img->data.descriptor_set = 0;
   output_img->data.binding = 1;

   nir_ssa_def *invoc_id = nir_load_local_invocation_id(&b);
   nir_ssa_def *wg_id = nir_load_workgroup_id(&b, 32);
   nir_ssa_def *block_size =
      nir_imm_ivec4(&b, b.shader->info.workgroup_size[0], b.shader->info.workgroup_size[1],
                    b.shader->info.workgroup_size[2], 0);

   nir_ssa_def *global_id = nir_iadd(&b, nir_imul(&b, wg_id, block_size), invoc_id);

   nir_ssa_def *data = nir_image_deref_load(
      &b, 4, 32, &nir_build_deref_var(&b, input_img)->dest.ssa, global_id, nir_ssa_undef(&b, 1, 32),
      nir_imm_int(&b, 0), .image_dim = GLSL_SAMPLER_DIM_2D);

   /* We need a NIR_SCOPE_DEVICE memory_scope because ACO will avoid
    * creating a vmcnt(0) because it expects the L1 cache to keep memory
    * operations in-order for the same workgroup. The vmcnt(0) seems
    * necessary however. */
   nir_scoped_barrier(&b, .execution_scope = NIR_SCOPE_WORKGROUP, .memory_scope = NIR_SCOPE_DEVICE,
                      .memory_semantics = NIR_MEMORY_ACQ_REL, .memory_modes = nir_var_mem_ssbo);

   nir_image_deref_store(&b, &nir_build_deref_var(&b, output_img)->dest.ssa, global_id,
                         nir_ssa_undef(&b, 1, 32), data, nir_imm_int(&b, 0),
                         .image_dim = GLSL_SAMPLER_DIM_2D);
   return b.shader;
}

static VkResult
create_expand_depth_stencil_compute(struct radv_device *device)
{
   VkResult result = VK_SUCCESS;
   nir_shader *cs = build_expand_depth_stencil_compute_shader(device);

   VkDescriptorSetLayoutCreateInfo ds_create_info = {
      .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
      .flags = VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT_KHR,
      .bindingCount = 2,
      .pBindings = (VkDescriptorSetLayoutBinding[]){
         {.binding = 0,
          .descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
          .descriptorCount = 1,
          .stageFlags = VK_SHADER_STAGE_COMPUTE_BIT,
          .pImmutableSamplers = NULL},
         {.binding = 1,
          .descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
          .descriptorCount = 1,
          .stageFlags = VK_SHADER_STAGE_COMPUTE_BIT,
          .pImmutableSamplers = NULL},
      }};

   result = radv_CreateDescriptorSetLayout(
      radv_device_to_handle(device), &ds_create_info, &device->meta_state.alloc,
      &device->meta_state.expand_depth_stencil_compute_ds_layout);
   if (result != VK_SUCCESS)
      goto cleanup;

   VkPipelineLayoutCreateInfo pl_create_info = {
      .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
      .setLayoutCount = 1,
      .pSetLayouts = &device->meta_state.expand_depth_stencil_compute_ds_layout,
      .pushConstantRangeCount = 0,
      .pPushConstantRanges = NULL,
   };

   result = radv_CreatePipelineLayout(
      radv_device_to_handle(device), &pl_create_info, &device->meta_state.alloc,
      &device->meta_state.expand_depth_stencil_compute_p_layout);
   if (result != VK_SUCCESS)
      goto cleanup;

   /* compute shader */

   VkPipelineShaderStageCreateInfo pipeline_shader_stage = {
      .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
      .stage = VK_SHADER_STAGE_COMPUTE_BIT,
      .module = vk_shader_module_handle_from_nir(cs),
      .pName = "main",
      .pSpecializationInfo = NULL,
   };

   VkComputePipelineCreateInfo vk_pipeline_info = {
      .sType = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO,
      .stage = pipeline_shader_stage,
      .flags = 0,
      .layout = device->meta_state.expand_depth_stencil_compute_p_layout,
   };

   result = radv_CreateComputePipelines(
      radv_device_to_handle(device), radv_pipeline_cache_to_handle(&device->meta_state.cache), 1,
      &vk_pipeline_info, NULL,
      &device->meta_state.expand_depth_stencil_compute_pipeline);
   if (result != VK_SUCCESS)
      goto cleanup;

cleanup:
   ralloc_free(cs);
   return result;
}

static VkResult
create_pipeline_layout(struct radv_device *device, VkPipelineLayout *layout)
{
   VkPipelineLayoutCreateInfo pl_create_info = {
      .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
      .setLayoutCount = 0,
      .pSetLayouts = NULL,
      .pushConstantRangeCount = 0,
      .pPushConstantRanges = NULL,
   };

   return radv_CreatePipelineLayout(radv_device_to_handle(device), &pl_create_info,
                                    &device->meta_state.alloc, layout);
}

static VkResult
create_pipeline(struct radv_device *device, uint32_t samples, VkPipelineLayout layout,
                enum radv_depth_op op, VkPipeline *pipeline)
{
   VkResult result;
   VkDevice device_h = radv_device_to_handle(device);

   mtx_lock(&device->meta_state.mtx);
   if (*pipeline) {
      mtx_unlock(&device->meta_state.mtx);
      return VK_SUCCESS;
   }

   nir_shader *vs_module = radv_meta_build_nir_vs_generate_vertices();
   nir_shader *fs_module = radv_meta_build_nir_fs_noop();

   if (!vs_module || !fs_module) {
      /* XXX: Need more accurate error */
      result = VK_ERROR_OUT_OF_HOST_MEMORY;
      goto cleanup;
   }

   const VkPipelineSampleLocationsStateCreateInfoEXT sample_locs_create_info = {
      .sType = VK_STRUCTURE_TYPE_PIPELINE_SAMPLE_LOCATIONS_STATE_CREATE_INFO_EXT,
      .sampleLocationsEnable = false,
   };

   const VkPipelineRenderingCreateInfo rendering_create_info = {
      .sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO,
      .depthAttachmentFormat = VK_FORMAT_D32_SFLOAT_S8_UINT,
      .stencilAttachmentFormat = VK_FORMAT_D32_SFLOAT_S8_UINT,
   };

   const VkGraphicsPipelineCreateInfo pipeline_create_info = {
      .sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
      .pNext = &rendering_create_info,
      .stageCount = 2,
      .pStages =
         (VkPipelineShaderStageCreateInfo[]){
            {
               .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
               .stage = VK_SHADER_STAGE_VERTEX_BIT,
               .module = vk_shader_module_handle_from_nir(vs_module),
               .pName = "main",
            },
            {
               .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
               .stage = VK_SHADER_STAGE_FRAGMENT_BIT,
               .module = vk_shader_module_handle_from_nir(fs_module),
               .pName = "main",
            },
         },
      .pVertexInputState =
         &(VkPipelineVertexInputStateCreateInfo){
            .sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,
            .vertexBindingDescriptionCount = 0,
            .vertexAttributeDescriptionCount = 0,
         },
      .pInputAssemblyState =
         &(VkPipelineInputAssemblyStateCreateInfo){
            .sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
            .topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP,
            .primitiveRestartEnable = false,
         },
      .pViewportState =
         &(VkPipelineViewportStateCreateInfo){
            .sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
            .viewportCount = 1,
            .scissorCount = 1,
         },
      .pRasterizationState =
         &(VkPipelineRasterizationStateCreateInfo){
            .sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
            .depthClampEnable = false,
            .rasterizerDiscardEnable = false,
            .polygonMode = VK_POLYGON_MODE_FILL,
            .cullMode = VK_CULL_MODE_NONE,
            .frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE,
         },
      .pMultisampleState =
         &(VkPipelineMultisampleStateCreateInfo){
            .sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
            .pNext = &sample_locs_create_info,
            .rasterizationSamples = samples,
            .sampleShadingEnable = false,
            .pSampleMask = NULL,
            .alphaToCoverageEnable = false,
            .alphaToOneEnable = false,
         },
      .pColorBlendState =
         &(VkPipelineColorBlendStateCreateInfo){
            .sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
            .logicOpEnable = false,
            .attachmentCount = 0,
            .pAttachments = NULL,
         },
      .pDepthStencilState =
         &(VkPipelineDepthStencilStateCreateInfo){
            .sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO,
            .depthTestEnable = false,
            .depthWriteEnable = false,
            .depthBoundsTestEnable = false,
            .stencilTestEnable = false,
         },
      .pDynamicState =
         &(VkPipelineDynamicStateCreateInfo){
            .sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO,
            .dynamicStateCount = 3,
            .pDynamicStates =
               (VkDynamicState[]){
                  VK_DYNAMIC_STATE_VIEWPORT,
                  VK_DYNAMIC_STATE_SCISSOR,
                  VK_DYNAMIC_STATE_SAMPLE_LOCATIONS_EXT,
               },
         },
      .layout = layout,
      .renderPass = VK_NULL_HANDLE,
      .subpass = 0,
   };

   struct radv_graphics_pipeline_create_info extra = {
      .use_rectlist = true,
      .depth_compress_disable = true,
      .stencil_compress_disable = true,
      .resummarize_enable = op == DEPTH_RESUMMARIZE,
   };

   result = radv_graphics_pipeline_create(
      device_h, radv_pipeline_cache_to_handle(&device->meta_state.cache), &pipeline_create_info,
      &extra, &device->meta_state.alloc, pipeline);

cleanup:
   ralloc_free(fs_module);
   ralloc_free(vs_module);
   mtx_unlock(&device->meta_state.mtx);
   return result;
}

void
radv_device_finish_meta_depth_decomp_state(struct radv_device *device)
{
   struct radv_meta_state *state = &device->meta_state;

   for (uint32_t i = 0; i < ARRAY_SIZE(state->depth_decomp); ++i) {
      radv_DestroyPipelineLayout(radv_device_to_handle(device), state->depth_decomp[i].p_layout,
                                 &state->alloc);

      radv_DestroyPipeline(radv_device_to_handle(device),
                           state->depth_decomp[i].decompress_pipeline, &state->alloc);
      radv_DestroyPipeline(radv_device_to_handle(device),
                           state->depth_decomp[i].resummarize_pipeline, &state->alloc);
   }

   radv_DestroyPipeline(radv_device_to_handle(device),
                        state->expand_depth_stencil_compute_pipeline, &state->alloc);
   radv_DestroyPipelineLayout(radv_device_to_handle(device),
                              state->expand_depth_stencil_compute_p_layout, &state->alloc);
   radv_DestroyDescriptorSetLayout(radv_device_to_handle(device),
                                   state->expand_depth_stencil_compute_ds_layout, &state->alloc);
}

VkResult
radv_device_init_meta_depth_decomp_state(struct radv_device *device, bool on_demand)
{
   struct radv_meta_state *state = &device->meta_state;
   VkResult res = VK_SUCCESS;

   for (uint32_t i = 0; i < ARRAY_SIZE(state->depth_decomp); ++i) {
      uint32_t samples = 1 << i;

      res = create_pipeline_layout(device, &state->depth_decomp[i].p_layout);
      if (res != VK_SUCCESS)
         goto fail;

      if (on_demand)
         continue;

      res = create_pipeline(device, samples, state->depth_decomp[i].p_layout, DEPTH_DECOMPRESS,
                            &state->depth_decomp[i].decompress_pipeline);
      if (res != VK_SUCCESS)
         goto fail;

      res = create_pipeline(device, samples, state->depth_decomp[i].p_layout, DEPTH_RESUMMARIZE,
                            &state->depth_decomp[i].resummarize_pipeline);
      if (res != VK_SUCCESS)
         goto fail;
   }

   res = create_expand_depth_stencil_compute(device);
   if (res != VK_SUCCESS)
      goto fail;

   return VK_SUCCESS;

fail:
   radv_device_finish_meta_depth_decomp_state(device);
   return res;
}

static VkPipeline *
radv_get_depth_pipeline(struct radv_cmd_buffer *cmd_buffer, struct radv_image *image,
                        const VkImageSubresourceRange *subresourceRange, enum radv_depth_op op)
{
   struct radv_meta_state *state = &cmd_buffer->device->meta_state;
   uint32_t samples = image->info.samples;
   uint32_t samples_log2 = ffs(samples) - 1;
   VkPipeline *pipeline;

   if (!state->depth_decomp[samples_log2].decompress_pipeline) {
      VkResult ret;

      ret = create_pipeline(cmd_buffer->device, samples, state->depth_decomp[samples_log2].p_layout,
                            DEPTH_DECOMPRESS, &state->depth_decomp[samples_log2].decompress_pipeline);
      if (ret != VK_SUCCESS) {
         cmd_buffer->record_result = ret;
         return NULL;
      }

      ret = create_pipeline(cmd_buffer->device, samples, state->depth_decomp[samples_log2].p_layout,
                            DEPTH_RESUMMARIZE, &state->depth_decomp[samples_log2].resummarize_pipeline);
      if (ret != VK_SUCCESS) {
         cmd_buffer->record_result = ret;
         return NULL;
      }
   }

   switch (op) {
   case DEPTH_DECOMPRESS:
      pipeline = &state->depth_decomp[samples_log2].decompress_pipeline;
      break;
   case DEPTH_RESUMMARIZE:
      pipeline = &state->depth_decomp[samples_log2].resummarize_pipeline;
      break;
   default:
      unreachable("unknown operation");
   }

   return pipeline;
}

static void
radv_process_depth_image_layer(struct radv_cmd_buffer *cmd_buffer, struct radv_image *image,
                               const VkImageSubresourceRange *range, int level, int layer)
{
   struct radv_device *device = cmd_buffer->device;
   struct radv_image_view iview;
   uint32_t width, height;

   width = radv_minify(image->info.width, range->baseMipLevel + level);
   height = radv_minify(image->info.height, range->baseMipLevel + level);

   radv_image_view_init(&iview, device,
                        &(VkImageViewCreateInfo){
                           .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
                           .image = radv_image_to_handle(image),
                           .viewType = radv_meta_get_view_type(image),
                           .format = image->vk_format,
                           .subresourceRange =
                              {
                                 .aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT,
                                 .baseMipLevel = range->baseMipLevel + level,
                                 .levelCount = 1,
                                 .baseArrayLayer = range->baseArrayLayer + layer,
                                 .layerCount = 1,
                              },
                        },
                        NULL);

   const VkRenderingAttachmentInfo depth_att = {
      .sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO,
      .imageView = radv_image_view_to_handle(&iview),
      .imageLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
      .loadOp = VK_ATTACHMENT_LOAD_OP_LOAD,
      .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
   };

   const VkRenderingAttachmentInfo stencil_att = {
      .sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO,
      .imageView = radv_image_view_to_handle(&iview),
      .imageLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
      .loadOp = VK_ATTACHMENT_LOAD_OP_LOAD,
      .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
   };

   const VkRenderingInfo rendering_info = {
      .sType = VK_STRUCTURE_TYPE_RENDERING_INFO,
      .renderArea = {
         .offset = { 0, 0 },
         .extent = { width, height }
      },
      .layerCount = 1,
      .pDepthAttachment = &depth_att,
      .pStencilAttachment = &stencil_att,
   };

   radv_CmdBeginRendering(radv_cmd_buffer_to_handle(cmd_buffer), &rendering_info);

   radv_CmdDraw(radv_cmd_buffer_to_handle(cmd_buffer), 3, 1, 0, 0);

   radv_CmdEndRendering(radv_cmd_buffer_to_handle(cmd_buffer));

   radv_image_view_finish(&iview);
}

static void
radv_process_depth_stencil(struct radv_cmd_buffer *cmd_buffer, struct radv_image *image,
                           const VkImageSubresourceRange *subresourceRange,
                           struct radv_sample_locations_state *sample_locs, enum radv_depth_op op)
{
   struct radv_meta_saved_state saved_state;
   VkCommandBuffer cmd_buffer_h = radv_cmd_buffer_to_handle(cmd_buffer);
   VkPipeline *pipeline;

   radv_meta_save(
      &saved_state, cmd_buffer,
      RADV_META_SAVE_GRAPHICS_PIPELINE | RADV_META_SAVE_SAMPLE_LOCATIONS | RADV_META_SAVE_PASS);

   pipeline = radv_get_depth_pipeline(cmd_buffer, image, subresourceRange, op);

   radv_CmdBindPipeline(radv_cmd_buffer_to_handle(cmd_buffer), VK_PIPELINE_BIND_POINT_GRAPHICS,
                        *pipeline);

   if (sample_locs) {
      assert(image->flags & VK_IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT);

      /* Set the sample locations specified during explicit or
       * automatic layout transitions, otherwise the depth decompress
       * pass uses the default HW locations.
       */
      radv_CmdSetSampleLocationsEXT(cmd_buffer_h,
                                    &(VkSampleLocationsInfoEXT){
                                       .sampleLocationsPerPixel = sample_locs->per_pixel,
                                       .sampleLocationGridSize = sample_locs->grid_size,
                                       .sampleLocationsCount = sample_locs->count,
                                       .pSampleLocations = sample_locs->locations,
                                    });
   }

   for (uint32_t l = 0; l < radv_get_levelCount(image, subresourceRange); ++l) {

      /* Do not decompress levels without HTILE. */
      if (!radv_htile_enabled(image, subresourceRange->baseMipLevel + l))
         continue;

      uint32_t width = radv_minify(image->info.width, subresourceRange->baseMipLevel + l);
      uint32_t height = radv_minify(image->info.height, subresourceRange->baseMipLevel + l);

      radv_CmdSetViewport(cmd_buffer_h, 0, 1,
                          &(VkViewport){.x = 0,
                                        .y = 0,
                                        .width = width,
                                        .height = height,
                                        .minDepth = 0.0f,
                                        .maxDepth = 1.0f});

      radv_CmdSetScissor(cmd_buffer_h, 0, 1,
                         &(VkRect2D){
                            .offset = {0, 0},
                            .extent = {width, height},
                         });

      for (uint32_t s = 0; s < radv_get_layerCount(image, subresourceRange); s++) {
         radv_process_depth_image_layer(cmd_buffer, image, subresourceRange, l, s);
      }
   }

   radv_meta_restore(&saved_state, cmd_buffer);
}

static void
radv_expand_depth_stencil_compute(struct radv_cmd_buffer *cmd_buffer, struct radv_image *image,
                                  const VkImageSubresourceRange *subresourceRange)
{
   struct radv_meta_saved_state saved_state;
   struct radv_image_view load_iview = {0};
   struct radv_image_view store_iview = {0};
   struct radv_device *device = cmd_buffer->device;

   assert(radv_image_is_tc_compat_htile(image));

   cmd_buffer->state.flush_bits |=
      radv_dst_access_flush(cmd_buffer, VK_ACCESS_2_SHADER_WRITE_BIT, image);

   radv_meta_save(&saved_state, cmd_buffer,
                  RADV_META_SAVE_DESCRIPTORS | RADV_META_SAVE_COMPUTE_PIPELINE);

   radv_CmdBindPipeline(radv_cmd_buffer_to_handle(cmd_buffer), VK_PIPELINE_BIND_POINT_COMPUTE,
                        device->meta_state.expand_depth_stencil_compute_pipeline);

   for (uint32_t l = 0; l < radv_get_levelCount(image, subresourceRange); l++) {
      uint32_t width, height;

      /* Do not decompress levels without HTILE. */
      if (!radv_htile_enabled(image, subresourceRange->baseMipLevel + l))
         continue;

      width = radv_minify(image->info.width, subresourceRange->baseMipLevel + l);
      height = radv_minify(image->info.height, subresourceRange->baseMipLevel + l);

      for (uint32_t s = 0; s < radv_get_layerCount(image, subresourceRange); s++) {
         radv_image_view_init(
            &load_iview, cmd_buffer->device,
            &(VkImageViewCreateInfo){
               .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
               .image = radv_image_to_handle(image),
               .viewType = VK_IMAGE_VIEW_TYPE_2D,
               .format = image->vk_format,
               .subresourceRange = {.aspectMask = subresourceRange->aspectMask,
                                    .baseMipLevel = subresourceRange->baseMipLevel + l,
                                    .levelCount = 1,
                                    .baseArrayLayer = subresourceRange->baseArrayLayer + s,
                                    .layerCount = 1},
            },
            &(struct radv_image_view_extra_create_info){.enable_compression = true});
         radv_image_view_init(
            &store_iview, cmd_buffer->device,
            &(VkImageViewCreateInfo){
               .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
               .image = radv_image_to_handle(image),
               .viewType = VK_IMAGE_VIEW_TYPE_2D,
               .format = image->vk_format,
               .subresourceRange = {.aspectMask = subresourceRange->aspectMask,
                                    .baseMipLevel = subresourceRange->baseMipLevel + l,
                                    .levelCount = 1,
                                    .baseArrayLayer = subresourceRange->baseArrayLayer + s,
                                    .layerCount = 1},
            },
            &(struct radv_image_view_extra_create_info){.disable_compression = true});

         radv_meta_push_descriptor_set(
            cmd_buffer, VK_PIPELINE_BIND_POINT_COMPUTE,
            device->meta_state.expand_depth_stencil_compute_p_layout, 0, /* set */
            2, /* descriptorWriteCount */
            (VkWriteDescriptorSet[]){{.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
                                      .dstBinding = 0,
                                      .dstArrayElement = 0,
                                      .descriptorCount = 1,
                                      .descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
                                      .pImageInfo =
                                         (VkDescriptorImageInfo[]){
                                            {
                                               .sampler = VK_NULL_HANDLE,
                                               .imageView = radv_image_view_to_handle(&load_iview),
                                               .imageLayout = VK_IMAGE_LAYOUT_GENERAL,
                                            },
                                         }},
                                     {.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
                                      .dstBinding = 1,
                                      .dstArrayElement = 0,
                                      .descriptorCount = 1,
                                      .descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
                                      .pImageInfo = (VkDescriptorImageInfo[]){
                                         {
                                            .sampler = VK_NULL_HANDLE,
                                            .imageView = radv_image_view_to_handle(&store_iview),
                                            .imageLayout = VK_IMAGE_LAYOUT_GENERAL,
                                         },
                                      }}});

         radv_unaligned_dispatch(cmd_buffer, width, height, 1);

         radv_image_view_finish(&load_iview);
         radv_image_view_finish(&store_iview);
      }
   }

   radv_meta_restore(&saved_state, cmd_buffer);

   cmd_buffer->state.flush_bits |=
      RADV_CMD_FLAG_CS_PARTIAL_FLUSH | RADV_CMD_FLAG_INV_VCACHE |
      radv_src_access_flush(cmd_buffer, VK_ACCESS_2_SHADER_WRITE_BIT, image);

   /* Initialize the HTILE metadata as "fully expanded". */
   uint32_t htile_value = radv_get_htile_initial_value(cmd_buffer->device, image);

   cmd_buffer->state.flush_bits |= radv_clear_htile(cmd_buffer, image, subresourceRange, htile_value);
}

void
radv_expand_depth_stencil(struct radv_cmd_buffer *cmd_buffer, struct radv_image *image,
                          const VkImageSubresourceRange *subresourceRange,
                          struct radv_sample_locations_state *sample_locs)
{
   struct radv_barrier_data barrier = {0};

   barrier.layout_transitions.depth_stencil_expand = 1;
   radv_describe_layout_transition(cmd_buffer, &barrier);

   if (cmd_buffer->qf == RADV_QUEUE_GENERAL) {
      radv_process_depth_stencil(cmd_buffer, image, subresourceRange, sample_locs, DEPTH_DECOMPRESS);
   } else {
      radv_expand_depth_stencil_compute(cmd_buffer, image, subresourceRange);
   }
}

void
radv_resummarize_depth_stencil(struct radv_cmd_buffer *cmd_buffer, struct radv_image *image,
                               const VkImageSubresourceRange *subresourceRange,
                               struct radv_sample_locations_state *sample_locs)
{
   struct radv_barrier_data barrier = {0};

   barrier.layout_transitions.depth_stencil_resummarize = 1;
   radv_describe_layout_transition(cmd_buffer, &barrier);

   assert(cmd_buffer->qf == RADV_QUEUE_GENERAL);
   radv_process_depth_stencil(cmd_buffer, image, subresourceRange, sample_locs, DEPTH_RESUMMARIZE);
}
