/* * Copyright © 2021 Bas Nieuwenhuizen * Copyright © 2023 Valve 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 "vk_acceleration_structure.h" #include "vk_alloc.h" #include "vk_common_entrypoints.h" #include "vk_device.h" #include "vk_command_buffer.h" #include "vk_log.h" #include "vk_meta.h" #include "bvh/vk_build_interface.h" #include "bvh/vk_bvh.h" #include "radix_sort/common/vk/barrier.h" #include "radix_sort/shaders/push.h" #include "util/u_string.h" static const uint32_t leaf_spv[] = { #include "bvh/leaf.spv.h" }; static const uint32_t morton_spv[] = { #include "bvh/morton.spv.h" }; static const uint32_t lbvh_main_spv[] = { #include "bvh/lbvh_main.spv.h" }; static const uint32_t lbvh_generate_ir_spv[] = { #include "bvh/lbvh_generate_ir.spv.h" }; static const uint32_t ploc_spv[] = { #include "bvh/ploc_internal.spv.h" }; VKAPI_ATTR VkResult VKAPI_CALL vk_common_CreateAccelerationStructureKHR(VkDevice _device, const VkAccelerationStructureCreateInfoKHR *pCreateInfo, const VkAllocationCallbacks *pAllocator, VkAccelerationStructureKHR *pAccelerationStructure) { VK_FROM_HANDLE(vk_device, device, _device); VK_FROM_HANDLE(vk_buffer, buffer, pCreateInfo->buffer); struct vk_acceleration_structure *accel_struct = vk_object_alloc( device, pAllocator, sizeof(struct vk_acceleration_structure), VK_OBJECT_TYPE_ACCELERATION_STRUCTURE_KHR); if (!accel_struct) return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY); accel_struct->buffer = buffer; accel_struct->offset = pCreateInfo->offset; accel_struct->size = pCreateInfo->size; if (pCreateInfo->deviceAddress && vk_acceleration_structure_get_va(accel_struct) != pCreateInfo->deviceAddress) return vk_error(device, VK_ERROR_INVALID_OPAQUE_CAPTURE_ADDRESS); *pAccelerationStructure = vk_acceleration_structure_to_handle(accel_struct); return VK_SUCCESS; } VKAPI_ATTR void VKAPI_CALL vk_common_DestroyAccelerationStructureKHR(VkDevice _device, VkAccelerationStructureKHR accelerationStructure, const VkAllocationCallbacks *pAllocator) { VK_FROM_HANDLE(vk_device, device, _device); VK_FROM_HANDLE(vk_acceleration_structure, accel_struct, accelerationStructure); if (!accel_struct) return; vk_object_free(device, pAllocator, accel_struct); } VKAPI_ATTR VkDeviceAddress VKAPI_CALL vk_common_GetAccelerationStructureDeviceAddressKHR( VkDevice _device, const VkAccelerationStructureDeviceAddressInfoKHR *pInfo) { VK_FROM_HANDLE(vk_acceleration_structure, accel_struct, pInfo->accelerationStructure); return vk_acceleration_structure_get_va(accel_struct); } #define KEY_ID_PAIR_SIZE 8 #define MORTON_BIT_SIZE 24 static void vk_acceleration_structure_build_state_init(struct vk_acceleration_structure_build_state *state, struct vk_device *device, uint32_t leaf_count, const VkAccelerationStructureBuildGeometryInfoKHR *build_info, const struct vk_acceleration_structure_build_args *args) { state->build_info = build_info; state->leaf_node_count = leaf_count; if (leaf_count <= 4) state->config.internal_type = VK_INTERNAL_BUILD_TYPE_LBVH; else if (build_info->type == VK_ACCELERATION_STRUCTURE_TYPE_TOP_LEVEL_KHR) state->config.internal_type = VK_INTERNAL_BUILD_TYPE_PLOC; else if (!(build_info->flags & VK_BUILD_ACCELERATION_STRUCTURE_PREFER_FAST_BUILD_BIT_KHR) && !(build_info->flags & VK_BUILD_ACCELERATION_STRUCTURE_ALLOW_UPDATE_BIT_KHR)) state->config.internal_type = VK_INTERNAL_BUILD_TYPE_PLOC; else state->config.internal_type = VK_INTERNAL_BUILD_TYPE_LBVH; if (build_info->mode == VK_BUILD_ACCELERATION_STRUCTURE_MODE_UPDATE_KHR && build_info->type == VK_ACCELERATION_STRUCTURE_TYPE_BOTTOM_LEVEL_KHR && device->as_build_ops->update_as[0]) state->config.internal_type = VK_INTERNAL_BUILD_TYPE_UPDATE; if ((build_info->flags & VK_BUILD_ACCELERATION_STRUCTURE_ALLOW_UPDATE_BIT_KHR) && build_info->type == VK_ACCELERATION_STRUCTURE_TYPE_BOTTOM_LEVEL_KHR && device->as_build_ops->update_as[0]) state->config.updateable = true; if (device->as_build_ops->get_build_config) device->as_build_ops->get_build_config(vk_device_to_handle(device), state); uint32_t internal_count = MAX2(leaf_count, 2) - 1; radix_sort_vk_memory_requirements_t requirements = { 0, }; radix_sort_vk_get_memory_requirements(args->radix_sort, leaf_count, &requirements); uint32_t ir_leaf_size; switch (vk_get_as_geometry_type(build_info)) { case VK_GEOMETRY_TYPE_TRIANGLES_KHR: ir_leaf_size = sizeof(struct vk_ir_triangle_node); break; case VK_GEOMETRY_TYPE_AABBS_KHR: ir_leaf_size = sizeof(struct vk_ir_aabb_node); break; case VK_GEOMETRY_TYPE_INSTANCES_KHR: ir_leaf_size = sizeof(struct vk_ir_instance_node); break; default: UNREACHABLE("Unknown VkGeometryTypeKHR"); } uint32_t offset = 0; uint32_t ploc_scratch_space = 0; uint32_t lbvh_node_space = 0; if (state->config.internal_type == VK_INTERNAL_BUILD_TYPE_PLOC) ploc_scratch_space = DIV_ROUND_UP(leaf_count, PLOC_WORKGROUP_SIZE) * sizeof(struct ploc_prefix_scan_partition); else lbvh_node_space = sizeof(struct lbvh_node_info) * internal_count; uint32_t encode_scratch_size = 0; if (device->as_build_ops->get_encode_scratch_size) encode_scratch_size = device->as_build_ops->get_encode_scratch_size(vk_device_to_handle(device), state); state->scratch.header_offset = offset; offset += sizeof(struct vk_ir_header); /* The encode passes should not need node sorting state. Reuse the space reserved for node sorting. */ uint32_t encode_scratch_end = offset + encode_scratch_size; state->scratch.sort_buffer_offset[0] = offset; offset += requirements.keyvals_size; state->scratch.sort_buffer_offset[1] = offset; offset += requirements.keyvals_size; state->scratch.sort_internal_offset = offset; /* Internal sorting data is not needed when PLOC/LBVH are invoked, * save space by aliasing them */ state->scratch.ploc_prefix_sum_partition_offset = offset; state->scratch.lbvh_node_offset = offset; offset += MAX3(requirements.internal_size, ploc_scratch_space, lbvh_node_space); /* Make sure encode scratch space does not overlap the BVH. */ offset = MAX2(offset, encode_scratch_end); state->scratch.ir_offset = offset; offset += ir_leaf_size * leaf_count; state->scratch.internal_node_offset = offset; offset += sizeof(struct vk_ir_box_node) * internal_count; state->scratch.size = offset; if (build_info->type == VK_ACCELERATION_STRUCTURE_TYPE_BOTTOM_LEVEL_KHR && device->as_build_ops->update_as[0]) { state->scratch.update_size = device->as_build_ops->get_update_scratch_size(vk_device_to_handle(device), state); } else { state->scratch.update_size = offset; } } struct bvh_state { struct vk_acceleration_structure_build_state vk; uint32_t scratch_offset; uint32_t internal_node_count; /* Radix sort state */ uint32_t scatter_blocks; uint32_t count_ru_scatter; uint32_t histo_blocks; uint32_t count_ru_histo; struct rs_push_scatter push_scatter; uint32_t last_encode_pass; }; struct bvh_batch_state { bool any_updateable; bool any_non_updateable; bool any_ploc; bool any_lbvh; bool any_update; }; struct vk_bvh_build_pipeline_layout_key { enum vk_meta_object_key_type type; uint32_t size; }; struct vk_bvh_build_pipeline_key { enum vk_meta_object_key_type type; uint32_t flags; }; VkResult vk_get_bvh_build_pipeline_layout(struct vk_device *device, struct vk_meta_device *meta, unsigned push_constant_size, VkPipelineLayout *layout) { struct vk_bvh_build_pipeline_layout_key key = { .type = VK_META_OBJECT_KEY_BVH_PIPELINE_LAYOUT, .size = push_constant_size, }; VkPushConstantRange push_constant_range = { .stageFlags = VK_SHADER_STAGE_COMPUTE_BIT, .size = push_constant_size, }; return vk_meta_get_pipeline_layout( device, meta, NULL, &push_constant_range, &key, sizeof(key), layout); } VkResult vk_get_bvh_build_pipeline_spv(struct vk_device *device, struct vk_meta_device *meta, enum vk_meta_object_key_type type, const uint32_t *spv, uint32_t spv_size, unsigned push_constant_size, const struct vk_acceleration_structure_build_args *args, uint32_t flags, VkPipeline *pipeline) { VkPipelineLayout layout; VkResult result = vk_get_bvh_build_pipeline_layout(device, meta, push_constant_size, &layout); if (result != VK_SUCCESS) return result; struct vk_bvh_build_pipeline_key key = { .type = type, .flags = flags, }; VkPipeline pipeline_from_cache = vk_meta_lookup_pipeline(meta, &key, sizeof(key)); if (pipeline_from_cache != VK_NULL_HANDLE) { *pipeline = pipeline_from_cache; return VK_SUCCESS; } VkShaderModuleCreateInfo module_info = { .sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO, .pNext = NULL, .flags = 0, .codeSize = spv_size, .pCode = spv, }; VkSpecializationMapEntry spec_map[4] = { { .constantID = SUBGROUP_SIZE_ID, .offset = 0, .size = sizeof(args->subgroup_size), }, { .constantID = BVH_BOUNDS_OFFSET_ID, .offset = sizeof(args->subgroup_size), .size = sizeof(args->bvh_bounds_offset), }, { .constantID = BUILD_FLAGS_ID, .offset = sizeof(args->subgroup_size) + sizeof(args->bvh_bounds_offset), .size = sizeof(flags), }, { .constantID = ROOT_FLAGS_OFFSET_ID, .offset = sizeof(args->subgroup_size) + sizeof(args->bvh_bounds_offset), .size = sizeof(args->root_flags_offset), } }; uint32_t spec_constants[4] = { args->subgroup_size, args->bvh_bounds_offset, flags, args->root_flags_offset, }; VkSpecializationInfo spec_info = { .mapEntryCount = ARRAY_SIZE(spec_map), .pMapEntries = spec_map, .dataSize = sizeof(spec_constants), .pData = spec_constants, }; VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT rssci = { .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_REQUIRED_SUBGROUP_SIZE_CREATE_INFO_EXT, .pNext = &module_info, .requiredSubgroupSize = args->subgroup_size, }; VkPipelineShaderStageCreateInfo shader_stage = { .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO, .pNext = &rssci, .flags = VK_PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT, .stage = VK_SHADER_STAGE_COMPUTE_BIT, .pName = "main", .pSpecializationInfo = &spec_info, }; VkComputePipelineCreateInfo pipeline_info = { .sType = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO, .stage = shader_stage, .flags = 0, .layout = layout, }; return vk_meta_create_compute_pipeline(device, meta, &pipeline_info, &key, sizeof(key), pipeline); } static uint32_t pack_geometry_id_and_flags(uint32_t geometry_id, uint32_t flags) { uint32_t geometry_id_and_flags = geometry_id; if (flags & VK_GEOMETRY_OPAQUE_BIT_KHR) geometry_id_and_flags |= VK_GEOMETRY_OPAQUE; return geometry_id_and_flags; } struct vk_bvh_geometry_data vk_fill_geometry_data(VkAccelerationStructureTypeKHR type, uint32_t first_id, uint32_t geom_index, const VkAccelerationStructureGeometryKHR *geometry, const VkAccelerationStructureBuildRangeInfoKHR *build_range_info) { struct vk_bvh_geometry_data data = { .first_id = first_id, .geometry_id = pack_geometry_id_and_flags(geom_index, geometry->flags), .geometry_type = geometry->geometryType, }; switch (geometry->geometryType) { case VK_GEOMETRY_TYPE_TRIANGLES_KHR: assert(type == VK_ACCELERATION_STRUCTURE_TYPE_BOTTOM_LEVEL_KHR); data.data = geometry->geometry.triangles.vertexData.deviceAddress + build_range_info->firstVertex * geometry->geometry.triangles.vertexStride; data.indices = geometry->geometry.triangles.indexData.deviceAddress; if (geometry->geometry.triangles.indexType == VK_INDEX_TYPE_NONE_KHR) data.data += build_range_info->primitiveOffset; else data.indices += build_range_info->primitiveOffset; data.transform = geometry->geometry.triangles.transformData.deviceAddress; if (data.transform) data.transform += build_range_info->transformOffset; data.stride = geometry->geometry.triangles.vertexStride; data.vertex_format = geometry->geometry.triangles.vertexFormat; data.index_format = geometry->geometry.triangles.indexType; break; case VK_GEOMETRY_TYPE_AABBS_KHR: assert(type == VK_ACCELERATION_STRUCTURE_TYPE_BOTTOM_LEVEL_KHR); data.data = geometry->geometry.aabbs.data.deviceAddress + build_range_info->primitiveOffset; data.stride = geometry->geometry.aabbs.stride; break; case VK_GEOMETRY_TYPE_INSTANCES_KHR: assert(type == VK_ACCELERATION_STRUCTURE_TYPE_TOP_LEVEL_KHR); data.data = geometry->geometry.instances.data.deviceAddress + build_range_info->primitiveOffset; if (geometry->geometry.instances.arrayOfPointers) data.stride = 8; else data.stride = sizeof(VkAccelerationStructureInstanceKHR); break; default: UNREACHABLE("Unknown geometryType"); } return data; } void vk_accel_struct_cmd_begin_debug_marker(VkCommandBuffer commandBuffer, enum vk_acceleration_structure_build_step step, const char *format, ...) { VK_FROM_HANDLE(vk_command_buffer, cmd_buffer, commandBuffer); struct vk_device *device = cmd_buffer->base.device; va_list ap; va_start(ap, format); char *name; if (vasprintf(&name, format, ap) == -1) { va_end(ap); return; } va_end(ap); VkDebugMarkerMarkerInfoEXT marker = { .sType = VK_STRUCTURE_TYPE_DEBUG_MARKER_MARKER_INFO_EXT, .pMarkerName = name, }; device->dispatch_table.CmdDebugMarkerBeginEXT(commandBuffer, &marker); } void vk_accel_struct_cmd_end_debug_marker(VkCommandBuffer commandBuffer) { VK_FROM_HANDLE(vk_command_buffer, cmd_buffer, commandBuffer); struct vk_device *device = cmd_buffer->base.device; device->dispatch_table.CmdDebugMarkerEndEXT(commandBuffer); } static VkResult build_leaves(VkCommandBuffer commandBuffer, struct vk_device *device, struct vk_meta_device *meta, const struct vk_acceleration_structure_build_args *args, uint32_t infoCount, const VkAccelerationStructureBuildGeometryInfoKHR *pInfos, const VkAccelerationStructureBuildRangeInfoKHR *const *ppBuildRangeInfos, struct bvh_state *bvh_states, bool updateable) { VkPipeline pipeline; VkPipelineLayout layout; /* Many apps are broken and will make inactive primitives active when * updating, even though this is disallowed by the spec. To handle this, * we use a different variant for updateable acceleration structures when * the driver implements an update pass. This passes through inactive leaf * nodes as if they were active, with an empty bounding box. It's then the * driver or HW's responsibility to filter out inactive nodes. */ const uint32_t *spirv = leaf_spv; size_t spirv_size = sizeof(leaf_spv); if (device->as_build_ops->leaf_spirv_override) { spirv = device->as_build_ops->leaf_spirv_override; spirv_size = device->as_build_ops->leaf_spirv_override_size; } uint32_t flags = 0; if (updateable) flags |= VK_BUILD_FLAG_ALWAYS_ACTIVE; if (args->propagate_cull_flags) flags |= VK_BUILD_FLAG_PROPAGATE_CULL_FLAGS; VkResult result = vk_get_bvh_build_pipeline_spv(device, meta, VK_META_OBJECT_KEY_LEAF, spirv, spirv_size, sizeof(struct leaf_args), args, flags, &pipeline); if (result != VK_SUCCESS) return result; result = vk_get_bvh_build_pipeline_layout(device, meta, sizeof(struct leaf_args), &layout); if (result != VK_SUCCESS) return result; if (args->emit_markers) { device->as_build_ops->begin_debug_marker(commandBuffer, VK_ACCELERATION_STRUCTURE_BUILD_STEP_BUILD_LEAVES, "build_leaves"); } const struct vk_device_dispatch_table *disp = &device->dispatch_table; disp->CmdBindPipeline( commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, pipeline); for (uint32_t i = 0; i < infoCount; ++i) { if (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_UPDATE) continue; if (bvh_states[i].vk.config.updateable != updateable) continue; struct leaf_args leaf_consts = { .bvh = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.ir_offset, .header = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.header_offset, .ids = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_buffer_offset[0], }; for (unsigned j = 0; j < pInfos[i].geometryCount; ++j) { const VkAccelerationStructureGeometryKHR *geom = pInfos[i].pGeometries ? &pInfos[i].pGeometries[j] : pInfos[i].ppGeometries[j]; const VkAccelerationStructureBuildRangeInfoKHR *build_range_info = &ppBuildRangeInfos[i][j]; if (build_range_info->primitiveCount == 0) continue; leaf_consts.geom_data = vk_fill_geometry_data(pInfos[i].type, bvh_states[i].vk.leaf_node_count, j, geom, build_range_info); disp->CmdPushConstants(commandBuffer, layout, VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(leaf_consts), &leaf_consts); device->cmd_dispatch_unaligned(commandBuffer, build_range_info->primitiveCount, 1, 1); bvh_states[i].vk.leaf_node_count += build_range_info->primitiveCount; } } if (args->emit_markers) device->as_build_ops->end_debug_marker(commandBuffer); return VK_SUCCESS; } static VkResult morton_generate(VkCommandBuffer commandBuffer, struct vk_device *device, struct vk_meta_device *meta, const struct vk_acceleration_structure_build_args *args, uint32_t infoCount, const VkAccelerationStructureBuildGeometryInfoKHR *pInfos, struct bvh_state *bvh_states) { VkPipeline pipeline; VkPipelineLayout layout; VkResult result = vk_get_bvh_build_pipeline_spv(device, meta, VK_META_OBJECT_KEY_MORTON, morton_spv, sizeof(morton_spv), sizeof(struct morton_args), args, 0, &pipeline); if (result != VK_SUCCESS) return result; result = vk_get_bvh_build_pipeline_layout(device, meta, sizeof(struct morton_args), &layout); if (result != VK_SUCCESS) return result; if (args->emit_markers) { device->as_build_ops->begin_debug_marker(commandBuffer, VK_ACCELERATION_STRUCTURE_BUILD_STEP_MORTON_GENERATE, "morton_generate"); } const struct vk_device_dispatch_table *disp = &device->dispatch_table; disp->CmdBindPipeline( commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, pipeline); for (uint32_t i = 0; i < infoCount; ++i) { if (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_UPDATE) continue; const struct morton_args consts = { .bvh = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.ir_offset, .header = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.header_offset, .ids = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_buffer_offset[0], }; disp->CmdPushConstants(commandBuffer, layout, VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(consts), &consts); device->cmd_dispatch_unaligned(commandBuffer, bvh_states[i].vk.leaf_node_count, 1, 1); } if (args->emit_markers) device->as_build_ops->end_debug_marker(commandBuffer); return VK_SUCCESS; } static void morton_sort(VkCommandBuffer commandBuffer, struct vk_device *device, const struct vk_acceleration_structure_build_args *args, uint32_t infoCount, const VkAccelerationStructureBuildGeometryInfoKHR *pInfos, struct bvh_state *bvh_states) { const struct vk_device_dispatch_table *disp = &device->dispatch_table; if (args->emit_markers) { device->as_build_ops->begin_debug_marker(commandBuffer, VK_ACCELERATION_STRUCTURE_BUILD_STEP_MORTON_SORT, "morton_sort"); } /* Copyright 2019 The Fuchsia Authors. */ const radix_sort_vk_t *rs = args->radix_sort; /* * OVERVIEW * * 1. Pad the keyvals in `scatter_even`. * 2. Zero the `histograms` and `partitions`. * --- BARRIER --- * 3. HISTOGRAM is dispatched before PREFIX. * --- BARRIER --- * 4. PREFIX is dispatched before the first SCATTER. * --- BARRIER --- * 5. One or more SCATTER dispatches. * * Note that the `partitions` buffer can be zeroed anytime before the first * scatter. */ /* How many passes? */ uint32_t keyval_bytes = rs->config.keyval_dwords * (uint32_t)sizeof(uint32_t); uint32_t keyval_bits = keyval_bytes * 8; uint32_t key_bits = MIN2(MORTON_BIT_SIZE, keyval_bits); uint32_t passes = (key_bits + RS_RADIX_LOG2 - 1) / RS_RADIX_LOG2; for (uint32_t i = 0; i < infoCount; ++i) { if (bvh_states[i].vk.leaf_node_count) bvh_states[i].scratch_offset = bvh_states[i].vk.scratch.sort_buffer_offset[passes & 1]; else bvh_states[i].scratch_offset = bvh_states[i].vk.scratch.sort_buffer_offset[0]; } /* * PAD KEYVALS AND ZERO HISTOGRAM/PARTITIONS * * Pad fractional blocks with max-valued keyvals. * * Zero the histograms and partitions buffer. * * This assumes the partitions follow the histograms. */ /* FIXME(allanmac): Consider precomputing some of these values and hang them off `rs`. */ /* How many scatter blocks? */ uint32_t scatter_wg_size = 1 << rs->config.scatter.workgroup_size_log2; uint32_t scatter_block_kvs = scatter_wg_size * rs->config.scatter.block_rows; /* * How many histogram blocks? * * Note that it's OK to have more max-valued digits counted by the histogram * than sorted by the scatters because the sort is stable. */ uint32_t histo_wg_size = 1 << rs->config.histogram.workgroup_size_log2; uint32_t histo_block_kvs = histo_wg_size * rs->config.histogram.block_rows; uint32_t pass_idx = (keyval_bytes - passes); for (uint32_t i = 0; i < infoCount; ++i) { if (!bvh_states[i].vk.leaf_node_count) continue; if (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_UPDATE) continue; uint64_t keyvals_even_addr = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_buffer_offset[0]; uint64_t internal_addr = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_internal_offset; bvh_states[i].scatter_blocks = (bvh_states[i].vk.leaf_node_count + scatter_block_kvs - 1) / scatter_block_kvs; bvh_states[i].count_ru_scatter = bvh_states[i].scatter_blocks * scatter_block_kvs; bvh_states[i].histo_blocks = (bvh_states[i].count_ru_scatter + histo_block_kvs - 1) / histo_block_kvs; bvh_states[i].count_ru_histo = bvh_states[i].histo_blocks * histo_block_kvs; /* Fill with max values */ if (bvh_states[i].count_ru_histo > bvh_states[i].vk.leaf_node_count) { device->cmd_fill_buffer_addr(commandBuffer, keyvals_even_addr + bvh_states[i].vk.leaf_node_count * keyval_bytes, (bvh_states[i].count_ru_histo - bvh_states[i].vk.leaf_node_count) * keyval_bytes, 0xFFFFFFFF); } /* * Zero histograms and invalidate partitions. * * Note that the partition invalidation only needs to be performed once * because the even/odd scatter dispatches rely on the the previous pass to * leave the partitions in an invalid state. * * Note that the last workgroup doesn't read/write a partition so it doesn't * need to be initialized. */ uint32_t histo_partition_count = passes + bvh_states[i].scatter_blocks - 1; uint32_t fill_base = pass_idx * (RS_RADIX_SIZE * sizeof(uint32_t)); device->cmd_fill_buffer_addr(commandBuffer, internal_addr + rs->internal.histograms.offset + fill_base, histo_partition_count * (RS_RADIX_SIZE * sizeof(uint32_t)) + keyval_bytes * sizeof(uint32_t), 0); } /* * Pipeline: HISTOGRAM * * TODO(allanmac): All subgroups should try to process approximately the same * number of blocks in order to minimize tail effects. This was implemented * and reverted but should be reimplemented and benchmarked later. */ vk_barrier_transfer_w_to_compute_r(commandBuffer); disp->CmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, rs->pipelines.named.histogram); for (uint32_t i = 0; i < infoCount; ++i) { if (!bvh_states[i].vk.leaf_node_count) continue; if (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_UPDATE) continue; uint64_t keyvals_even_addr = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_buffer_offset[0]; uint64_t internal_addr = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_internal_offset; /* Dispatch histogram */ struct rs_push_histogram push_histogram = { .devaddr_histograms = internal_addr + rs->internal.histograms.offset, .devaddr_keyvals = keyvals_even_addr, .passes = passes, }; disp->CmdPushConstants(commandBuffer, rs->pipeline_layouts.named.histogram, VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(push_histogram), &push_histogram); disp->CmdDispatch(commandBuffer, bvh_states[i].histo_blocks, 1, 1); } /* * Pipeline: PREFIX * * Launch one workgroup per pass. */ vk_barrier_compute_w_to_compute_r(commandBuffer); disp->CmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, rs->pipelines.named.prefix); for (uint32_t i = 0; i < infoCount; ++i) { if (!bvh_states[i].vk.leaf_node_count) continue; if (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_UPDATE) continue; uint64_t internal_addr = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_internal_offset; struct rs_push_prefix push_prefix = { .devaddr_histograms = internal_addr + rs->internal.histograms.offset, }; disp->CmdPushConstants(commandBuffer, rs->pipeline_layouts.named.prefix, VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(push_prefix), &push_prefix); disp->CmdDispatch(commandBuffer, passes, 1, 1); } /* Pipeline: SCATTER */ vk_barrier_compute_w_to_compute_r(commandBuffer); uint32_t histogram_offset = pass_idx * (RS_RADIX_SIZE * sizeof(uint32_t)); for (uint32_t i = 0; i < infoCount; i++) { uint64_t keyvals_even_addr = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_buffer_offset[0]; uint64_t keyvals_odd_addr = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_buffer_offset[1]; uint64_t internal_addr = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.sort_internal_offset; bvh_states[i].push_scatter = (struct rs_push_scatter){ .devaddr_keyvals_even = keyvals_even_addr, .devaddr_keyvals_odd = keyvals_odd_addr, .devaddr_partitions = internal_addr + rs->internal.partitions.offset, .devaddr_histograms = internal_addr + rs->internal.histograms.offset + histogram_offset, }; } bool is_even = true; while (true) { uint32_t pass_dword = pass_idx / 4; /* Bind new pipeline */ VkPipeline p = is_even ? rs->pipelines.named.scatter[pass_dword].even : rs->pipelines.named.scatter[pass_dword].odd; disp->CmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, p); /* Update push constants that changed */ VkPipelineLayout pl = is_even ? rs->pipeline_layouts.named.scatter[pass_dword].even : rs->pipeline_layouts.named.scatter[pass_dword].odd; for (uint32_t i = 0; i < infoCount; i++) { if (!bvh_states[i].vk.leaf_node_count) continue; if (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_UPDATE) continue; bvh_states[i].push_scatter.pass_offset = (pass_idx & 3) * RS_RADIX_LOG2; disp->CmdPushConstants(commandBuffer, pl, VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(struct rs_push_scatter), &bvh_states[i].push_scatter); disp->CmdDispatch(commandBuffer, bvh_states[i].scatter_blocks, 1, 1); bvh_states[i].push_scatter.devaddr_histograms += (RS_RADIX_SIZE * sizeof(uint32_t)); } /* Continue? */ if (++pass_idx >= keyval_bytes) break; vk_barrier_compute_w_to_compute_r(commandBuffer); is_even ^= true; } if (args->emit_markers) device->as_build_ops->end_debug_marker(commandBuffer); } static VkResult lbvh_build_internal(VkCommandBuffer commandBuffer, struct vk_device *device, struct vk_meta_device *meta, const struct vk_acceleration_structure_build_args *args, uint32_t infoCount, const VkAccelerationStructureBuildGeometryInfoKHR *pInfos, struct bvh_state *bvh_states) { VkPipeline pipeline; VkPipelineLayout layout; uint32_t flags = 0; if (args->propagate_cull_flags) flags |= VK_BUILD_FLAG_PROPAGATE_CULL_FLAGS; VkResult result = vk_get_bvh_build_pipeline_spv(device, meta, VK_META_OBJECT_KEY_LBVH_MAIN, lbvh_main_spv, sizeof(lbvh_main_spv), sizeof(struct lbvh_main_args), args, flags, &pipeline); if (result != VK_SUCCESS) return result; result = vk_get_bvh_build_pipeline_layout(device, meta, sizeof(struct lbvh_main_args), &layout); if (result != VK_SUCCESS) return result; if (args->emit_markers) { device->as_build_ops->begin_debug_marker(commandBuffer, VK_ACCELERATION_STRUCTURE_BUILD_STEP_LBVH_BUILD_INTERNAL, "lbvh_build_internal"); } const struct vk_device_dispatch_table *disp = &device->dispatch_table; disp->CmdBindPipeline( commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, pipeline); for (uint32_t i = 0; i < infoCount; ++i) { if (bvh_states[i].vk.config.internal_type != VK_INTERNAL_BUILD_TYPE_LBVH) continue; uint32_t src_scratch_offset = bvh_states[i].scratch_offset; uint32_t internal_node_count = MAX2(bvh_states[i].vk.leaf_node_count, 2) - 1; const struct lbvh_main_args consts = { .bvh = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.ir_offset, .src_ids = pInfos[i].scratchData.deviceAddress + src_scratch_offset, .node_info = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.lbvh_node_offset, .id_count = bvh_states[i].vk.leaf_node_count, .internal_node_base = bvh_states[i].vk.scratch.internal_node_offset - bvh_states[i].vk.scratch.ir_offset, }; disp->CmdPushConstants(commandBuffer, layout, VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(consts), &consts); device->cmd_dispatch_unaligned(commandBuffer, internal_node_count, 1, 1); bvh_states[i].internal_node_count = internal_node_count; } vk_barrier_compute_w_to_compute_r(commandBuffer); result = vk_get_bvh_build_pipeline_spv(device, meta, VK_META_OBJECT_KEY_LBVH_GENERATE_IR, lbvh_generate_ir_spv, sizeof(lbvh_generate_ir_spv), sizeof(struct lbvh_generate_ir_args), args, flags, &pipeline); if (result != VK_SUCCESS) return result; result = vk_get_bvh_build_pipeline_layout(device, meta, sizeof(struct lbvh_generate_ir_args), &layout); if (result != VK_SUCCESS) return result; disp->CmdBindPipeline( commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, pipeline); for (uint32_t i = 0; i < infoCount; ++i) { if (bvh_states[i].vk.config.internal_type != VK_INTERNAL_BUILD_TYPE_LBVH) continue; const struct lbvh_generate_ir_args consts = { .bvh = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.ir_offset, .node_info = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.lbvh_node_offset, .header = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.header_offset, .internal_node_base = bvh_states[i].vk.scratch.internal_node_offset - bvh_states[i].vk.scratch.ir_offset, }; disp->CmdPushConstants(commandBuffer, layout, VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(consts), &consts); device->cmd_dispatch_unaligned(commandBuffer, bvh_states[i].internal_node_count, 1, 1); } if (args->emit_markers) device->as_build_ops->end_debug_marker(commandBuffer); return VK_SUCCESS; } static VkResult ploc_build_internal(VkCommandBuffer commandBuffer, struct vk_device *device, struct vk_meta_device *meta, const struct vk_acceleration_structure_build_args *args, uint32_t infoCount, const VkAccelerationStructureBuildGeometryInfoKHR *pInfos, struct bvh_state *bvh_states) { VkPipeline pipeline; VkPipelineLayout layout; uint32_t flags = 0; if (args->propagate_cull_flags) flags |= VK_BUILD_FLAG_PROPAGATE_CULL_FLAGS; VkResult result = vk_get_bvh_build_pipeline_spv(device, meta, VK_META_OBJECT_KEY_PLOC, ploc_spv, sizeof(ploc_spv), sizeof(struct ploc_args), args, flags, &pipeline); if (result != VK_SUCCESS) return result; result = vk_get_bvh_build_pipeline_layout(device, meta, sizeof(struct ploc_args), &layout); if (result != VK_SUCCESS) return result; if (args->emit_markers) { device->as_build_ops->begin_debug_marker(commandBuffer, VK_ACCELERATION_STRUCTURE_BUILD_STEP_PLOC_BUILD_INTERNAL, "ploc_build_internal"); } const struct vk_device_dispatch_table *disp = &device->dispatch_table; disp->CmdBindPipeline( commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, pipeline); for (uint32_t i = 0; i < infoCount; ++i) { if (bvh_states[i].vk.config.internal_type != VK_INTERNAL_BUILD_TYPE_PLOC) continue; uint32_t src_scratch_offset = bvh_states[i].scratch_offset; uint32_t dst_scratch_offset = (src_scratch_offset == bvh_states[i].vk.scratch.sort_buffer_offset[0]) ? bvh_states[i].vk.scratch.sort_buffer_offset[1] : bvh_states[i].vk.scratch.sort_buffer_offset[0]; const struct ploc_args consts = { .bvh = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.ir_offset, .header = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.header_offset, .ids_0 = pInfos[i].scratchData.deviceAddress + src_scratch_offset, .ids_1 = pInfos[i].scratchData.deviceAddress + dst_scratch_offset, .prefix_scan_partitions = pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.ploc_prefix_sum_partition_offset, .internal_node_offset = bvh_states[i].vk.scratch.internal_node_offset - bvh_states[i].vk.scratch.ir_offset, }; disp->CmdPushConstants(commandBuffer, layout, VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(consts), &consts); disp->CmdDispatch(commandBuffer, MAX2(DIV_ROUND_UP(bvh_states[i].vk.leaf_node_count, PLOC_WORKGROUP_SIZE), 1), 1, 1); } if (args->emit_markers) device->as_build_ops->end_debug_marker(commandBuffer); return VK_SUCCESS; } void vk_cmd_build_acceleration_structures(VkCommandBuffer commandBuffer, struct vk_device *device, struct vk_meta_device *meta, uint32_t infoCount, const VkAccelerationStructureBuildGeometryInfoKHR *pInfos, const VkAccelerationStructureBuildRangeInfoKHR *const *ppBuildRangeInfos, const struct vk_acceleration_structure_build_args *args) { VK_FROM_HANDLE(vk_command_buffer, cmd_buffer, commandBuffer); const struct vk_acceleration_structure_build_ops *ops = device->as_build_ops; struct bvh_batch_state batch_state = {0}; struct bvh_state *bvh_states = calloc(infoCount, sizeof(struct bvh_state)); if (args->emit_markers) { uint32_t num_of_blas = 0; uint32_t num_of_tlas = 0; for (uint32_t i = 0; i < infoCount; ++i) { switch (pInfos[i].type) { case VK_ACCELERATION_STRUCTURE_TYPE_TOP_LEVEL_KHR: num_of_tlas++; break; case VK_ACCELERATION_STRUCTURE_TYPE_BOTTOM_LEVEL_KHR: num_of_blas++; break; default: break; } } ops->begin_debug_marker(commandBuffer, VK_ACCELERATION_STRUCTURE_BUILD_STEP_TOP, "vkCmdBuildAccelerationStructuresKHR() TLAS(%u) BLAS(%u)", num_of_tlas, num_of_blas); } for (uint32_t i = 0; i < infoCount; ++i) { uint32_t leaf_node_count = 0; for (uint32_t j = 0; j < pInfos[i].geometryCount; ++j) { leaf_node_count += ppBuildRangeInfos[i][j].primitiveCount; } vk_acceleration_structure_build_state_init(&bvh_states[i].vk, cmd_buffer->base.device, leaf_node_count, pInfos + i, args); bvh_states[i].vk.build_range_infos = ppBuildRangeInfos[i]; /* The leaf node dispatch code uses leaf_node_count as a base index. */ bvh_states[i].vk.leaf_node_count = 0; if (bvh_states[i].vk.config.updateable) batch_state.any_updateable = true; else batch_state.any_non_updateable = true; if (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_PLOC) { batch_state.any_ploc = true; } else if (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_LBVH) { batch_state.any_lbvh = true; } else if (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_UPDATE) { batch_state.any_update = true; /* For updates, the leaf node pass never runs, so set leaf_node_count here. */ bvh_states[i].vk.leaf_node_count = leaf_node_count; } else { UNREACHABLE("Unknown internal_build_type"); } if (bvh_states[i].vk.config.internal_type != VK_INTERNAL_BUILD_TYPE_UPDATE) { /* The internal node count is updated in lbvh_build_internal for LBVH * and from the PLOC shader for PLOC. */ struct vk_ir_header header = { .min_bounds = {0x7fffffff, 0x7fffffff, 0x7fffffff}, .max_bounds = {0x80000000, 0x80000000, 0x80000000}, .dispatch_size_y = 1, .dispatch_size_z = 1, .sync_data = { .current_phase_end_counter = TASK_INDEX_INVALID, /* Will be updated by the first PLOC shader invocation */ .task_counts = {TASK_INDEX_INVALID, TASK_INDEX_INVALID}, }, }; device->write_buffer_cp(commandBuffer, pInfos[i].scratchData.deviceAddress + bvh_states[i].vk.scratch.header_offset, &header, sizeof(header)); } else { ops->init_update_scratch(commandBuffer, &bvh_states[i].vk); } } /* Wait for the write_buffer_cp to land before using in compute shaders */ device->flush_buffer_write_cp(commandBuffer); device->dispatch_table.CmdPipelineBarrier(commandBuffer, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0, /* dependencyFlags */ 1, &(VkMemoryBarrier) { .srcAccessMask = 0, .dstAccessMask = VK_ACCESS_SHADER_READ_BIT, }, 0, NULL, 0, NULL); if (batch_state.any_lbvh || batch_state.any_ploc) { VkResult result; if (batch_state.any_non_updateable) { result = build_leaves(commandBuffer, device, meta, args, infoCount, pInfos, ppBuildRangeInfos, bvh_states, false); if (result != VK_SUCCESS) { free(bvh_states); vk_command_buffer_set_error(cmd_buffer, result); return; } } if (batch_state.any_updateable) { result = build_leaves(commandBuffer, device, meta, args, infoCount, pInfos, ppBuildRangeInfos, bvh_states, true); if (result != VK_SUCCESS) { free(bvh_states); vk_command_buffer_set_error(cmd_buffer, result); return; } } vk_barrier_compute_w_to_compute_r(commandBuffer); result = morton_generate(commandBuffer, device, meta, args, infoCount, pInfos, bvh_states); if (result != VK_SUCCESS) { free(bvh_states); vk_command_buffer_set_error(cmd_buffer, result); return; } vk_barrier_compute_w_to_compute_r(commandBuffer); morton_sort(commandBuffer, device, args, infoCount, pInfos, bvh_states); vk_barrier_compute_w_to_compute_r(commandBuffer); if (batch_state.any_lbvh) { result = lbvh_build_internal(commandBuffer, device, meta, args, infoCount, pInfos, bvh_states); if (result != VK_SUCCESS) { free(bvh_states); vk_command_buffer_set_error(cmd_buffer, result); return; } } if (batch_state.any_ploc) { result = ploc_build_internal(commandBuffer, device, meta, args, infoCount, pInfos, bvh_states); if (result != VK_SUCCESS) { vk_command_buffer_set_error(cmd_buffer, result); return; } } vk_barrier_compute_w_to_compute_r(commandBuffer); vk_barrier_compute_w_to_indirect_compute_r(commandBuffer); } /* Calculate number of leaves and internal nodes to encode */ uint32_t num_leaves = 0; uint32_t num_internal_node = 0; for ( uint32_t i = 0; i < infoCount; i++) { num_leaves += bvh_states[i].vk.leaf_node_count; num_internal_node += bvh_states[i].internal_node_count; } if (args->emit_markers) device->as_build_ops->begin_debug_marker(commandBuffer, VK_ACCELERATION_STRUCTURE_BUILD_STEP_ENCODE, "encode_leaves=%u encode_ir_node=%u", num_leaves, num_internal_node); for (unsigned pass = 0; pass < ARRAY_SIZE(ops->encode_as); pass++) { if (!ops->encode_as[pass] && !ops->update_as[pass]) break; bool progress; do { progress = false; bool update; uint32_t encode_key = 0; uint32_t update_key = 0; for (uint32_t i = 0; i < infoCount; ++i) { if (bvh_states[i].last_encode_pass == pass + 1) continue; if (!progress) { update = (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_UPDATE); if (update && !ops->update_as[pass]) continue; if (!update && !ops->encode_as[pass]) continue; encode_key = bvh_states[i].vk.config.encode_key[pass]; update_key = bvh_states[i].vk.config.update_key[pass]; progress = true; if (update) ops->update_bind_pipeline[pass](commandBuffer, &bvh_states[i].vk); else ops->encode_bind_pipeline[pass](commandBuffer, &bvh_states[i].vk); } else { if (update != (bvh_states[i].vk.config.internal_type == VK_INTERNAL_BUILD_TYPE_UPDATE) || encode_key != bvh_states[i].vk.config.encode_key[pass] || update_key != bvh_states[i].vk.config.update_key[pass]) continue; } if (update) ops->update_as[pass](commandBuffer, &bvh_states[i].vk); else ops->encode_as[pass](commandBuffer, &bvh_states[i].vk); bvh_states[i].last_encode_pass = pass + 1; } } while (progress); } if (args->emit_markers) device->as_build_ops->end_debug_marker(commandBuffer); if (args->emit_markers) device->as_build_ops->end_debug_marker(commandBuffer); free(bvh_states); } void vk_get_as_build_sizes(VkDevice _device, VkAccelerationStructureBuildTypeKHR buildType, const VkAccelerationStructureBuildGeometryInfoKHR *pBuildInfo, const uint32_t *pMaxPrimitiveCounts, VkAccelerationStructureBuildSizesInfoKHR *pSizeInfo, const struct vk_acceleration_structure_build_args *args) { VK_FROM_HANDLE(vk_device, device, _device); uint32_t leaf_count = 0; for (uint32_t i = 0; i < pBuildInfo->geometryCount; i++) leaf_count += pMaxPrimitiveCounts[i]; struct vk_acceleration_structure_build_state state = { 0 }; vk_acceleration_structure_build_state_init(&state, device, leaf_count, pBuildInfo, args); pSizeInfo->accelerationStructureSize = device->as_build_ops->get_as_size(_device, &state); pSizeInfo->updateScratchSize = state.scratch.update_size; pSizeInfo->buildScratchSize = state.scratch.size; } /* Return true if the common framework supports using this format for loading * vertices. Must match the formats handled by load_vertices() on the GPU. */ bool vk_acceleration_struct_vtx_format_supported(VkFormat format) { switch (format) { case VK_FORMAT_R32G32_SFLOAT: case VK_FORMAT_R32G32B32_SFLOAT: case VK_FORMAT_R32G32B32A32_SFLOAT: case VK_FORMAT_R16G16_SFLOAT: case VK_FORMAT_R16G16B16_SFLOAT: case VK_FORMAT_R16G16B16A16_SFLOAT: case VK_FORMAT_R16G16_SNORM: case VK_FORMAT_R16G16_UNORM: case VK_FORMAT_R16G16B16A16_SNORM: case VK_FORMAT_R16G16B16A16_UNORM: case VK_FORMAT_R8G8_SNORM: case VK_FORMAT_R8G8_UNORM: case VK_FORMAT_R8G8B8A8_SNORM: case VK_FORMAT_R8G8B8A8_UNORM: case VK_FORMAT_A2B10G10R10_UNORM_PACK32: return true; default: return false; } } /* Stubs of optional functions for drivers that don't implment them. */ VKAPI_ATTR void VKAPI_CALL vk_common_CmdBuildAccelerationStructuresIndirectKHR(VkCommandBuffer commandBuffer, uint32_t infoCount, const VkAccelerationStructureBuildGeometryInfoKHR *pInfos, const VkDeviceAddress *pIndirectDeviceAddresses, const uint32_t *pIndirectStrides, const uint32_t *const *ppMaxPrimitiveCounts) { UNREACHABLE("Unimplemented"); } VKAPI_ATTR VkResult VKAPI_CALL vk_common_WriteAccelerationStructuresPropertiesKHR(VkDevice _device, uint32_t accelerationStructureCount, const VkAccelerationStructureKHR *pAccelerationStructures, VkQueryType queryType, size_t dataSize, void *pData, size_t stride) { VK_FROM_HANDLE(vk_device, device, _device); UNREACHABLE("Unimplemented"); return vk_error(device, VK_ERROR_FEATURE_NOT_PRESENT); } VKAPI_ATTR VkResult VKAPI_CALL vk_common_BuildAccelerationStructuresKHR(VkDevice _device, VkDeferredOperationKHR deferredOperation, uint32_t infoCount, const VkAccelerationStructureBuildGeometryInfoKHR *pInfos, const VkAccelerationStructureBuildRangeInfoKHR *const *ppBuildRangeInfos) { VK_FROM_HANDLE(vk_device, device, _device); UNREACHABLE("Unimplemented"); return vk_error(device, VK_ERROR_FEATURE_NOT_PRESENT); } VKAPI_ATTR VkResult VKAPI_CALL vk_common_CopyAccelerationStructureKHR(VkDevice _device, VkDeferredOperationKHR deferredOperation, const VkCopyAccelerationStructureInfoKHR *pInfo) { VK_FROM_HANDLE(vk_device, device, _device); UNREACHABLE("Unimplemented"); return vk_error(device, VK_ERROR_FEATURE_NOT_PRESENT); } VKAPI_ATTR VkResult VKAPI_CALL vk_common_CopyMemoryToAccelerationStructureKHR(VkDevice _device, VkDeferredOperationKHR deferredOperation, const VkCopyMemoryToAccelerationStructureInfoKHR *pInfo) { VK_FROM_HANDLE(vk_device, device, _device); UNREACHABLE("Unimplemented"); return vk_error(device, VK_ERROR_FEATURE_NOT_PRESENT); } VKAPI_ATTR VkResult VKAPI_CALL vk_common_CopyAccelerationStructureToMemoryKHR(VkDevice _device, VkDeferredOperationKHR deferredOperation, const VkCopyAccelerationStructureToMemoryInfoKHR *pInfo) { VK_FROM_HANDLE(vk_device, device, _device); UNREACHABLE("Unimplemented"); return vk_error(device, VK_ERROR_FEATURE_NOT_PRESENT); }