mesa/src/microsoft/vulkan/dzn_descriptor_set.cpp

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/*
* Copyright © Microsoft 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 "dzn_private.h"
#include <wrl/client.h>
#include "vk_alloc.h"
#include "vk_descriptors.h"
#include "vk_util.h"
using Microsoft::WRL::ComPtr;
static D3D12_SHADER_VISIBILITY
translate_desc_visibility(VkShaderStageFlags in)
{
switch (in) {
case VK_SHADER_STAGE_VERTEX_BIT: return D3D12_SHADER_VISIBILITY_VERTEX;
case VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT: return D3D12_SHADER_VISIBILITY_HULL;
case VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT: return D3D12_SHADER_VISIBILITY_DOMAIN;
case VK_SHADER_STAGE_GEOMETRY_BIT: return D3D12_SHADER_VISIBILITY_GEOMETRY;
case VK_SHADER_STAGE_FRAGMENT_BIT: return D3D12_SHADER_VISIBILITY_PIXEL;
default: return D3D12_SHADER_VISIBILITY_ALL;
}
}
static D3D12_DESCRIPTOR_RANGE_TYPE
desc_type_to_range_type(VkDescriptorType in, bool writeable)
{
switch (in) {
case VK_DESCRIPTOR_TYPE_SAMPLER:
return D3D12_DESCRIPTOR_RANGE_TYPE_SAMPLER;
case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:
return D3D12_DESCRIPTOR_RANGE_TYPE_SRV;
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
return D3D12_DESCRIPTOR_RANGE_TYPE_CBV;
case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
return writeable ? D3D12_DESCRIPTOR_RANGE_TYPE_UAV : D3D12_DESCRIPTOR_RANGE_TYPE_SRV;
default:
unreachable("Unsupported desc type");
}
}
static bool
is_dynamic_desc_type(VkDescriptorType desc_type)
{
return (desc_type == VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC ||
desc_type == VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC);
}
static uint32_t
num_descs_for_type(VkDescriptorType type, bool static_sampler)
{
unsigned num_descs = 1;
/* Some type map to an SRV or UAV depending on how the shaders is using the
* resource (NONWRITEABLE flag set or not), in that case we need to reserve
* slots for both the UAV and SRV descs.
*/
if (dzn_descriptor_type_depends_on_shader_usage(type))
num_descs++;
/* There's no combined SRV+SAMPLER type in d3d12, we need an descriptor
* for the sampler.
*/
if (type == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER)
num_descs++;
/* Don't count immutable samplers, they have their own descriptor. */
if (static_sampler &&
(type == VK_DESCRIPTOR_TYPE_SAMPLER ||
type == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER))
num_descs--;
return num_descs;
}
static void
dzn_descriptor_set_layout_destroy(dzn_descriptor_set_layout *set_layout,
const VkAllocationCallbacks *pAllocator)
{
if (!set_layout)
return;
dzn_device *device = container_of(set_layout->base.device, dzn_device, vk);
vk_object_base_finish(&set_layout->base);
vk_free2(&device->vk.alloc, pAllocator, set_layout);
}
static VkResult
dzn_descriptor_set_layout_create(dzn_device *device,
const VkDescriptorSetLayoutCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator,
VkDescriptorSetLayout *out)
{
const VkDescriptorSetLayoutBinding *bindings = pCreateInfo->pBindings;
uint32_t binding_count = 0, static_sampler_count = 0, total_ranges = 0;
uint32_t dynamic_ranges_offset = 0, immutable_sampler_count = 0;
uint32_t range_count[MAX_SHADER_VISIBILITIES][NUM_POOL_TYPES] = {};
for (uint32_t i = 0; i < pCreateInfo->bindingCount; i++) {
D3D12_SHADER_VISIBILITY visibility =
translate_desc_visibility(bindings[i].stageFlags);
VkDescriptorType desc_type = bindings[i].descriptorType;
bool has_sampler =
desc_type == VK_DESCRIPTOR_TYPE_SAMPLER ||
desc_type == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
/* From the Vulkan 1.1.97 spec for VkDescriptorSetLayoutBinding:
*
* "If descriptorType specifies a VK_DESCRIPTOR_TYPE_SAMPLER or
* VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER type descriptor, then
* pImmutableSamplers can be used to initialize a set of immutable
* samplers. [...] If descriptorType is not one of these descriptor
* types, then pImmutableSamplers is ignored.
*
* We need to be careful here and only parse pImmutableSamplers if we
* have one of the right descriptor types.
*/
bool immutable_samplers =
has_sampler &&
bindings[i].pImmutableSamplers != NULL;
bool static_sampler = false;
if (immutable_samplers && bindings[i].descriptorCount == 1) {
VK_FROM_HANDLE(dzn_sampler, sampler, bindings[i].pImmutableSamplers[0]);
if (sampler->static_border_color != -1)
static_sampler = true;
}
if (static_sampler) {
static_sampler_count += bindings[i].descriptorCount;
} else if (has_sampler) {
range_count[visibility][D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER]++;
total_ranges++;
if (immutable_samplers)
immutable_sampler_count += bindings[i].descriptorCount;
}
if (desc_type != VK_DESCRIPTOR_TYPE_SAMPLER) {
range_count[visibility][D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV]++;
total_ranges++;
if (dzn_descriptor_type_depends_on_shader_usage(desc_type)) {
range_count[visibility][D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV]++;
total_ranges++;
}
if (!is_dynamic_desc_type(desc_type)) {
uint32_t factor =
dzn_descriptor_type_depends_on_shader_usage(desc_type) ? 2 : 1;
dynamic_ranges_offset += bindings[i].descriptorCount * factor;
}
}
binding_count = MAX2(binding_count, bindings[i].binding + 1);
}
/* We need to allocate decriptor set layouts off the device allocator
* with DEVICE scope because they are reference counted and may not be
* destroyed when vkDestroyDescriptorSetLayout is called.
*/
VK_MULTIALLOC(ma);
VK_MULTIALLOC_DECL(&ma, struct dzn_descriptor_set_layout, set_layout, 1);
VK_MULTIALLOC_DECL(&ma, D3D12_DESCRIPTOR_RANGE1,
ranges, total_ranges);
VK_MULTIALLOC_DECL(&ma, D3D12_STATIC_SAMPLER_DESC, static_samplers,
static_sampler_count);
VK_MULTIALLOC_DECL(&ma, const dzn_sampler *, immutable_samplers,
immutable_sampler_count);
VK_MULTIALLOC_DECL(&ma, dzn_descriptor_set_layout_binding, binfos,
binding_count);
if (!vk_multialloc_zalloc2(&ma, &device->vk.alloc, pAllocator,
VK_SYSTEM_ALLOCATION_SCOPE_OBJECT))
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
vk_object_base_init(&device->vk, &set_layout->base, VK_OBJECT_TYPE_DESCRIPTOR_SET_LAYOUT);
set_layout->static_samplers = static_samplers;
set_layout->static_sampler_count = static_sampler_count;
set_layout->immutable_samplers = immutable_samplers;
set_layout->immutable_sampler_count = immutable_sampler_count;
set_layout->bindings = binfos;
set_layout->binding_count = binding_count;
set_layout->dynamic_buffers.range_offset = dynamic_ranges_offset;
for (uint32_t i = 0; i < MAX_SHADER_VISIBILITIES; i++) {
dzn_foreach_pool_type (type) {
if (range_count[i][type]) {
set_layout->ranges[i][type] = ranges;
set_layout->range_count[i][type] = range_count[i][type];
ranges += range_count[i][type];
}
}
}
VkDescriptorSetLayoutBinding *ordered_bindings;
VkResult ret =
vk_create_sorted_bindings(pCreateInfo->pBindings,
pCreateInfo->bindingCount,
&ordered_bindings);
if (ret != VK_SUCCESS)
return ret;
assert(binding_count ==
(pCreateInfo->bindingCount ?
(ordered_bindings[pCreateInfo->bindingCount - 1].binding + 1) : 0));
uint32_t range_idx[MAX_SHADER_VISIBILITIES][NUM_POOL_TYPES] = {};
uint32_t static_sampler_idx = 0, immutable_sampler_idx = 0;
uint32_t dynamic_buffer_idx = 0;
uint32_t base_register = 0;
for (uint32_t i = 0; i < binding_count; i++) {
binfos[i].static_sampler_idx = ~0;
binfos[i].immutable_sampler_idx = ~0;
binfos[i].dynamic_buffer_idx = ~0;
dzn_foreach_pool_type (type)
binfos[i].range_idx[type] = ~0;
}
for (uint32_t i = 0; i < pCreateInfo->bindingCount; i++) {
VkDescriptorType desc_type = ordered_bindings[i].descriptorType;
uint32_t binding = ordered_bindings[i].binding;
uint32_t desc_count = ordered_bindings[i].descriptorCount;
bool has_sampler =
desc_type == VK_DESCRIPTOR_TYPE_SAMPLER ||
desc_type == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
bool has_immutable_samplers =
has_sampler &&
ordered_bindings[i].pImmutableSamplers != NULL;
bool has_static_sampler = has_immutable_samplers && desc_count == 1;
bool is_dynamic = is_dynamic_desc_type(desc_type);
D3D12_SHADER_VISIBILITY visibility =
translate_desc_visibility(ordered_bindings[i].stageFlags);
binfos[binding].type = desc_type;
binfos[binding].visibility = visibility;
binfos[binding].base_shader_register = base_register;
assert(base_register + desc_count >= base_register);
base_register += desc_count;
if (has_static_sampler) {
VK_FROM_HANDLE(dzn_sampler, sampler, ordered_bindings[i].pImmutableSamplers[0]);
/* Not all border colors are supported. */
if (sampler->static_border_color != -1) {
binfos[binding].static_sampler_idx = static_sampler_idx;
D3D12_STATIC_SAMPLER_DESC *desc = (D3D12_STATIC_SAMPLER_DESC *)
&static_samplers[static_sampler_idx];
desc->Filter = sampler->desc.Filter;
desc->AddressU = sampler->desc.AddressU;
desc->AddressV = sampler->desc.AddressV;
desc->AddressW = sampler->desc.AddressW;
desc->MipLODBias = sampler->desc.MipLODBias;
desc->MaxAnisotropy = sampler->desc.MaxAnisotropy;
desc->ComparisonFunc = sampler->desc.ComparisonFunc;
desc->BorderColor = sampler->static_border_color;
desc->MinLOD = sampler->desc.MinLOD;
desc->MaxLOD = sampler->desc.MaxLOD;
desc->ShaderRegister = binfos[binding].base_shader_register;
desc->ShaderVisibility = translate_desc_visibility(ordered_bindings[i].stageFlags);
static_sampler_idx++;
} else {
has_static_sampler = false;
}
}
if (has_immutable_samplers && !has_static_sampler) {
binfos[binding].immutable_sampler_idx = immutable_sampler_idx;
for (uint32_t s = 0; s < desc_count; s++) {
VK_FROM_HANDLE(dzn_sampler, sampler, ordered_bindings[i].pImmutableSamplers[s]);
immutable_samplers[immutable_sampler_idx++] = sampler;
}
}
if (is_dynamic) {
binfos[binding].dynamic_buffer_idx = dynamic_buffer_idx;
for (uint32_t d = 0; d < desc_count; d++)
set_layout->dynamic_buffers.bindings[dynamic_buffer_idx + d] = binding;
dynamic_buffer_idx += desc_count;
assert(dynamic_buffer_idx <= MAX_DYNAMIC_BUFFERS);
}
unsigned num_descs =
num_descs_for_type(desc_type, has_static_sampler);
if (!num_descs) continue;
assert(visibility < ARRAY_SIZE(set_layout->ranges));
bool has_range[NUM_POOL_TYPES] = {};
has_range[D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER] =
has_sampler && !has_static_sampler;
has_range[D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV] =
desc_type != VK_DESCRIPTOR_TYPE_SAMPLER;
dzn_foreach_pool_type (type) {
if (!has_range[type]) continue;
uint32_t idx = range_idx[visibility][type]++;
assert(idx < range_count[visibility][type]);
binfos[binding].range_idx[type] = idx;
D3D12_DESCRIPTOR_RANGE1 *range = (D3D12_DESCRIPTOR_RANGE1 *)
&set_layout->ranges[visibility][type][idx];
VkDescriptorType range_type = desc_type;
if (desc_type == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER) {
range_type = type == D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER ?
VK_DESCRIPTOR_TYPE_SAMPLER :
VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
}
range->RangeType = desc_type_to_range_type(range_type, false);
range->NumDescriptors = desc_count;
range->BaseShaderRegister = binfos[binding].base_shader_register;
range->Flags = type == D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER ?
D3D12_DESCRIPTOR_RANGE_FLAG_NONE :
D3D12_DESCRIPTOR_RANGE_FLAG_DESCRIPTORS_STATIC_KEEPING_BUFFER_BOUNDS_CHECKS;
if (is_dynamic) {
range->OffsetInDescriptorsFromTableStart =
set_layout->dynamic_buffers.range_offset +
set_layout->dynamic_buffers.desc_count;
set_layout->dynamic_buffers.count += range->NumDescriptors;
set_layout->dynamic_buffers.desc_count += range->NumDescriptors;
} else {
range->OffsetInDescriptorsFromTableStart = set_layout->range_desc_count[type];
set_layout->range_desc_count[type] += range->NumDescriptors;
}
if (!dzn_descriptor_type_depends_on_shader_usage(desc_type))
continue;
assert(idx + 1 < range_count[visibility][type]);
range_idx[visibility][type]++;
range[1] = range[0];
range++;
range->RangeType = desc_type_to_range_type(range_type, true);
if (is_dynamic) {
range->OffsetInDescriptorsFromTableStart =
set_layout->dynamic_buffers.range_offset +
set_layout->dynamic_buffers.desc_count;
set_layout->dynamic_buffers.desc_count += range->NumDescriptors;
} else {
range->OffsetInDescriptorsFromTableStart = set_layout->range_desc_count[type];
set_layout->range_desc_count[type] += range->NumDescriptors;
}
}
}
free(ordered_bindings);
*out = dzn_descriptor_set_layout_to_handle(set_layout);
return VK_SUCCESS;
}
uint32_t
dzn_descriptor_set_layout_get_heap_offset(const dzn_descriptor_set_layout *layout,
uint32_t b,
D3D12_DESCRIPTOR_HEAP_TYPE type,
bool writeable)
{
assert(b < layout->binding_count);
D3D12_SHADER_VISIBILITY visibility = layout->bindings[b].visibility;
assert(visibility < ARRAY_SIZE(layout->ranges));
assert(type < NUM_POOL_TYPES);
uint32_t range_idx = layout->bindings[b].range_idx[type];
if (range_idx == ~0)
return ~0;
if (writeable &&
!dzn_descriptor_type_depends_on_shader_usage(layout->bindings[b].type))
return ~0;
if (writeable)
range_idx++;
assert(range_idx < layout->range_count[visibility][type]);
return layout->ranges[visibility][type][range_idx].OffsetInDescriptorsFromTableStart;
}
uint32_t
dzn_descriptor_set_layout_get_desc_count(const dzn_descriptor_set_layout *layout,
uint32_t b)
{
D3D12_SHADER_VISIBILITY visibility = layout->bindings[b].visibility;
assert(visibility < ARRAY_SIZE(layout->ranges));
dzn_foreach_pool_type (type) {
uint32_t range_idx = layout->bindings[b].range_idx[type];
assert(range_idx == ~0 || range_idx < layout->range_count[visibility][type]);
if (range_idx != ~0)
return layout->ranges[visibility][type][range_idx].NumDescriptors;
}
return 0;
}
VKAPI_ATTR VkResult VKAPI_CALL
dzn_CreateDescriptorSetLayout(VkDevice device,
const VkDescriptorSetLayoutCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator,
VkDescriptorSetLayout *pSetLayout)
{
return dzn_descriptor_set_layout_create(dzn_device_from_handle(device),
pCreateInfo, pAllocator, pSetLayout);
}
VKAPI_ATTR void VKAPI_CALL
dzn_DestroyDescriptorSetLayout(VkDevice device,
VkDescriptorSetLayout descriptorSetLayout,
const VkAllocationCallbacks *pAllocator)
{
dzn_descriptor_set_layout_destroy(dzn_descriptor_set_layout_from_handle(descriptorSetLayout),
pAllocator);
}
static void
dzn_pipeline_layout_destroy(dzn_pipeline_layout *layout)
{
dzn_device *device = container_of(layout->base.device, dzn_device, vk);
if (layout->root.sig)
layout->root.sig->Release();
vk_free(&device->vk.alloc, layout);
}
// Reserve two root parameters for the push constants and sysvals CBVs.
#define MAX_INTERNAL_ROOT_PARAMS 2
// One root parameter for samplers and the other one for views, multiplied by
// the number of visibility combinations, plus the internal root parameters.
#define MAX_ROOT_PARAMS ((MAX_SHADER_VISIBILITIES * 2) + MAX_INTERNAL_ROOT_PARAMS)
// Maximum number of DWORDS (32-bit words) that can be used for a root signature
#define MAX_ROOT_DWORDS 64
static VkResult
dzn_pipeline_layout_create(dzn_device *device,
const VkPipelineLayoutCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator,
VkPipelineLayout *out)
{
uint32_t binding_count = 0;
for (uint32_t s = 0; s < pCreateInfo->setLayoutCount; s++) {
VK_FROM_HANDLE(dzn_descriptor_set_layout, set_layout, pCreateInfo->pSetLayouts[s]);
if (!set_layout)
continue;
binding_count += set_layout->binding_count;
}
VK_MULTIALLOC(ma);
VK_MULTIALLOC_DECL(&ma, dzn_pipeline_layout, layout, 1);
VK_MULTIALLOC_DECL(&ma, dxil_spirv_vulkan_binding,
bindings, binding_count);
if (!vk_multialloc_zalloc(&ma, &device->vk.alloc,
VK_SYSTEM_ALLOCATION_SCOPE_DEVICE))
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
vk_object_base_init(&device->vk, &layout->base, VK_OBJECT_TYPE_PIPELINE_LAYOUT);
for (uint32_t s = 0; s < pCreateInfo->setLayoutCount; s++) {
VK_FROM_HANDLE(dzn_descriptor_set_layout, set_layout, pCreateInfo->pSetLayouts[s]);
if (!set_layout || !set_layout->binding_count)
continue;
layout->binding_translation[s].bindings = bindings;
bindings += set_layout->binding_count;
}
uint32_t range_count = 0, static_sampler_count = 0;
p_atomic_set(&layout->refcount, 1);
layout->root.param_count = 0;
dzn_foreach_pool_type (type)
layout->desc_count[type] = 0;
layout->set_count = pCreateInfo->setLayoutCount;
for (uint32_t j = 0; j < layout->set_count; j++) {
VK_FROM_HANDLE(dzn_descriptor_set_layout, set_layout, pCreateInfo->pSetLayouts[j]);
dxil_spirv_vulkan_binding *bindings = layout->binding_translation[j].bindings;
layout->sets[j].dynamic_buffer_count = set_layout->dynamic_buffers.count;
memcpy(layout->sets[j].range_desc_count, set_layout->range_desc_count,
sizeof(layout->sets[j].range_desc_count));
layout->binding_translation[j].binding_count = set_layout->binding_count;
for (uint32_t b = 0; b < set_layout->binding_count; b++)
bindings[b].base_register = set_layout->bindings[b].base_shader_register;
static_sampler_count += set_layout->static_sampler_count;
dzn_foreach_pool_type (type) {
layout->sets[j].heap_offsets[type] = layout->desc_count[type];
layout->desc_count[type] += set_layout->range_desc_count[type];
for (uint32_t i = 0; i < MAX_SHADER_VISIBILITIES; i++)
range_count += set_layout->range_count[i][type];
}
layout->desc_count[D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV] +=
set_layout->dynamic_buffers.desc_count;
for (uint32_t o = 0, elem = 0; o < set_layout->dynamic_buffers.count; o++, elem++) {
uint32_t b = set_layout->dynamic_buffers.bindings[o];
if (o > 0 && set_layout->dynamic_buffers.bindings[o - 1] != b)
elem = 0;
uint32_t srv =
dzn_descriptor_set_layout_get_heap_offset(set_layout, b, D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV, false);
uint32_t uav =
dzn_descriptor_set_layout_get_heap_offset(set_layout, b, D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV, true);
layout->sets[j].dynamic_buffer_heap_offsets[o].srv = srv != ~0 ? srv + elem : ~0;
layout->sets[j].dynamic_buffer_heap_offsets[o].uav = uav != ~0 ? uav + elem : ~0;
}
}
D3D12_DESCRIPTOR_RANGE1 *ranges = (D3D12_DESCRIPTOR_RANGE1 *)
vk_alloc2(&device->vk.alloc, pAllocator, sizeof(*ranges) * range_count, 8,
VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (range_count && !ranges) {
dzn_pipeline_layout_destroy(layout);
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
}
D3D12_STATIC_SAMPLER_DESC *static_sampler_descs = (D3D12_STATIC_SAMPLER_DESC *)
vk_alloc2(&device->vk.alloc, pAllocator,
sizeof(*static_sampler_descs) * static_sampler_count, 8,
VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (static_sampler_count && !static_sampler_descs) {
vk_free2(&device->vk.alloc, pAllocator, ranges);
dzn_pipeline_layout_destroy(layout);
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
}
D3D12_ROOT_PARAMETER1 root_params[MAX_ROOT_PARAMS] = {};
D3D12_DESCRIPTOR_RANGE1 *range_ptr = ranges;
D3D12_ROOT_PARAMETER1 *root_param;
uint32_t root_dwords = 0;
for (uint32_t i = 0; i < MAX_SHADER_VISIBILITIES; i++) {
dzn_foreach_pool_type (type) {
root_param = &root_params[layout->root.param_count];
root_param->ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
root_param->DescriptorTable.pDescriptorRanges = range_ptr;
root_param->DescriptorTable.NumDescriptorRanges = 0;
root_param->ShaderVisibility = (D3D12_SHADER_VISIBILITY)i;
for (uint32_t j = 0; j < pCreateInfo->setLayoutCount; j++) {
VK_FROM_HANDLE(dzn_descriptor_set_layout, set_layout, pCreateInfo->pSetLayouts[j]);
uint32_t range_count = set_layout->range_count[i][type];
memcpy(range_ptr, set_layout->ranges[i][type],
range_count * sizeof(D3D12_DESCRIPTOR_RANGE1));
for (uint32_t k = 0; k < range_count; k++) {
range_ptr[k].RegisterSpace = j;
range_ptr[k].OffsetInDescriptorsFromTableStart +=
layout->sets[j].heap_offsets[type];
}
root_param->DescriptorTable.NumDescriptorRanges += range_count;
range_ptr += range_count;
}
if (root_param->DescriptorTable.NumDescriptorRanges) {
layout->root.type[layout->root.param_count++] = (D3D12_DESCRIPTOR_HEAP_TYPE)type;
root_dwords++;
}
}
}
layout->root.sets_param_count = layout->root.param_count;
/* Add our sysval CBV, and make it visible to all shaders */
layout->root.sysval_cbv_param_idx = layout->root.param_count;
root_param = &root_params[layout->root.param_count++];
root_param->ParameterType = D3D12_ROOT_PARAMETER_TYPE_32BIT_CONSTANTS;
root_param->Descriptor.RegisterSpace = DZN_REGISTER_SPACE_SYSVALS;
root_param->Constants.ShaderRegister = 0;
root_param->Constants.Num32BitValues =
DIV_ROUND_UP(MAX2(sizeof(struct dxil_spirv_vertex_runtime_data),
sizeof(struct dxil_spirv_compute_runtime_data)),
4);
root_param->ShaderVisibility = D3D12_SHADER_VISIBILITY_ALL;
root_dwords += root_param->Constants.Num32BitValues;
D3D12_STATIC_SAMPLER_DESC *static_sampler_ptr = static_sampler_descs;
for (uint32_t j = 0; j < pCreateInfo->setLayoutCount; j++) {
VK_FROM_HANDLE(dzn_descriptor_set_layout, set_layout, pCreateInfo->pSetLayouts[j]);
memcpy(static_sampler_ptr, set_layout->static_samplers,
set_layout->static_sampler_count * sizeof(*set_layout->static_samplers));
if (j > 0) {
for (uint32_t k = 0; k < set_layout->static_sampler_count; k++)
static_sampler_ptr[k].RegisterSpace = j;
}
static_sampler_ptr += set_layout->static_sampler_count;
}
uint32_t push_constant_size = 0;
uint32_t push_constant_flags = 0;
for (uint32_t j = 0; j < pCreateInfo->pushConstantRangeCount; j++) {
const VkPushConstantRange* range = pCreateInfo->pPushConstantRanges + j;
push_constant_size = MAX2(push_constant_size, range->offset + range->size);
push_constant_flags |= range->stageFlags;
}
if (push_constant_size > 0) {
layout->root.push_constant_cbv_param_idx = layout->root.param_count;
D3D12_ROOT_PARAMETER1 *root_param = &root_params[layout->root.param_count++];
root_param->ParameterType = D3D12_ROOT_PARAMETER_TYPE_32BIT_CONSTANTS;
root_param->Constants.ShaderRegister = 0;
root_param->Constants.Num32BitValues = ALIGN(push_constant_size, 4) / 4;
root_param->Constants.RegisterSpace = DZN_REGISTER_SPACE_PUSH_CONSTANT;
root_param->ShaderVisibility = translate_desc_visibility(push_constant_flags);
root_dwords += root_param->Constants.Num32BitValues;
}
assert(layout->root.param_count <= ARRAY_SIZE(root_params));
assert(root_dwords <= MAX_ROOT_DWORDS);
D3D12_VERSIONED_ROOT_SIGNATURE_DESC root_sig_desc = {
.Version = D3D_ROOT_SIGNATURE_VERSION_1_1,
.Desc_1_1 = {
.NumParameters = layout->root.param_count,
.pParameters = layout->root.param_count ? root_params : NULL,
.NumStaticSamplers =static_sampler_count,
.pStaticSamplers = static_sampler_descs,
/* TODO Only enable this flag when needed (optimization) */
.Flags = D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT,
},
};
layout->root.sig = dzn_device_create_root_sig(device, &root_sig_desc);
vk_free2(&device->vk.alloc, pAllocator, ranges);
vk_free2(&device->vk.alloc, pAllocator, static_sampler_descs);
if (!layout->root.sig) {
dzn_pipeline_layout_destroy(layout);
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
}
*out = dzn_pipeline_layout_to_handle(layout);
return VK_SUCCESS;
}
dzn_pipeline_layout *
dzn_pipeline_layout_ref(dzn_pipeline_layout *layout)
{
if (layout)
p_atomic_inc(&layout->refcount);
return layout;
}
void
dzn_pipeline_layout_unref(dzn_pipeline_layout *layout)
{
if (layout) {
if (p_atomic_dec_zero(&layout->refcount))
dzn_pipeline_layout_destroy(layout);
}
}
VKAPI_ATTR VkResult VKAPI_CALL
dzn_CreatePipelineLayout(VkDevice device,
const VkPipelineLayoutCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator,
VkPipelineLayout *pPipelineLayout)
{
return dzn_pipeline_layout_create(dzn_device_from_handle(device),
pCreateInfo, pAllocator, pPipelineLayout);
}
VKAPI_ATTR void VKAPI_CALL
dzn_DestroyPipelineLayout(VkDevice device,
VkPipelineLayout layout,
const VkAllocationCallbacks *pAllocator)
{
VK_FROM_HANDLE(dzn_pipeline_layout, playout, layout);
dzn_pipeline_layout_unref(playout);
}
static D3D12_DESCRIPTOR_HEAP_TYPE
desc_type_to_heap_type(VkDescriptorType in)
{
switch (in) {
case VK_DESCRIPTOR_TYPE_SAMPLER:
return D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER;
case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:
return D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
default:
unreachable("Unsupported desc type");
}
}
bool
dzn_descriptor_type_depends_on_shader_usage(VkDescriptorType type)
{
return type == VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER ||
type == VK_DESCRIPTOR_TYPE_STORAGE_IMAGE ||
type == VK_DESCRIPTOR_TYPE_STORAGE_BUFFER ||
type == VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC;
}
void
dzn_descriptor_heap_finish(dzn_descriptor_heap *heap)
{
if (heap->heap)
heap->heap->Release();
if (heap->dev)
heap->dev->Release();
}
VkResult
dzn_descriptor_heap_init(dzn_descriptor_heap *heap,
dzn_device *device,
D3D12_DESCRIPTOR_HEAP_TYPE type,
uint32_t desc_count,
bool shader_visible)
{
heap->desc_count = desc_count;
heap->type = type;
heap->dev = device->dev;
heap->dev->AddRef();
heap->desc_sz = device->dev->GetDescriptorHandleIncrementSize(type);
D3D12_DESCRIPTOR_HEAP_DESC desc = {
.Type = type,
.NumDescriptors = desc_count,
.Flags = shader_visible ?
D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE :
D3D12_DESCRIPTOR_HEAP_FLAG_NONE,
};
if (FAILED(device->dev->CreateDescriptorHeap(&desc,
IID_PPV_ARGS(&heap->heap)))) {
return vk_error(device,
shader_visible ?
VK_ERROR_OUT_OF_DEVICE_MEMORY : VK_ERROR_OUT_OF_HOST_MEMORY);
}
heap->cpu_base = heap->heap->GetCPUDescriptorHandleForHeapStart().ptr;
if (shader_visible)
heap->gpu_base = heap->heap->GetGPUDescriptorHandleForHeapStart().ptr;
return VK_SUCCESS;
}
D3D12_CPU_DESCRIPTOR_HANDLE
dzn_descriptor_heap_get_cpu_handle(const dzn_descriptor_heap *heap, uint32_t desc_offset)
{
return D3D12_CPU_DESCRIPTOR_HANDLE {
.ptr = heap->cpu_base + (desc_offset * heap->desc_sz),
};
}
D3D12_GPU_DESCRIPTOR_HANDLE
dzn_descriptor_heap_get_gpu_handle(const dzn_descriptor_heap *heap, uint32_t desc_offset)
{
return D3D12_GPU_DESCRIPTOR_HANDLE {
.ptr = heap->gpu_base ? heap->gpu_base + (desc_offset * heap->desc_sz) : 0,
};
}
void
dzn_descriptor_heap_write_sampler_desc(dzn_descriptor_heap *heap,
uint32_t desc_offset,
const dzn_sampler *sampler)
{
heap->dev->CreateSampler(&sampler->desc,
dzn_descriptor_heap_get_cpu_handle(heap, desc_offset));
}
void
dzn_descriptor_heap_write_image_view_desc(dzn_descriptor_heap *heap,
uint32_t desc_offset,
bool writeable, bool cube_as_2darray,
const dzn_image_view *iview)
{
D3D12_CPU_DESCRIPTOR_HANDLE view_handle =
dzn_descriptor_heap_get_cpu_handle(heap, desc_offset);
dzn_image *image = container_of(iview->vk.image, dzn_image, vk);
if (writeable) {
heap->dev->CreateUnorderedAccessView(image->res, NULL, &iview->uav_desc, view_handle);
} else if (cube_as_2darray &&
(iview->srv_desc.ViewDimension == D3D12_SRV_DIMENSION_TEXTURECUBEARRAY ||
iview->srv_desc.ViewDimension == D3D12_SRV_DIMENSION_TEXTURECUBE)) {
D3D12_SHADER_RESOURCE_VIEW_DESC srv_desc = iview->srv_desc;
srv_desc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2DARRAY;
srv_desc.Texture2DArray.PlaneSlice = 0;
if (iview->srv_desc.ViewDimension == D3D12_SRV_DIMENSION_TEXTURECUBEARRAY) {
srv_desc.Texture2DArray.MostDetailedMip =
iview->srv_desc.TextureCubeArray.MostDetailedMip;
srv_desc.Texture2DArray.MipLevels =
iview->srv_desc.TextureCubeArray.MipLevels;
srv_desc.Texture2DArray.FirstArraySlice =
iview->srv_desc.TextureCubeArray.First2DArrayFace;
srv_desc.Texture2DArray.ArraySize =
iview->srv_desc.TextureCubeArray.NumCubes * 6;
} else {
srv_desc.Texture2DArray.MostDetailedMip =
iview->srv_desc.TextureCube.MostDetailedMip;
srv_desc.Texture2DArray.MipLevels =
iview->srv_desc.TextureCube.MipLevels;
srv_desc.Texture2DArray.FirstArraySlice = 0;
srv_desc.Texture2DArray.ArraySize = 6;
}
heap->dev->CreateShaderResourceView(image->res, &srv_desc, view_handle);
} else {
heap->dev->CreateShaderResourceView(image->res, &iview->srv_desc, view_handle);
}
}
void
dzn_descriptor_heap_write_buffer_view_desc(dzn_descriptor_heap *heap,
uint32_t desc_offset,
bool writeable,
const dzn_buffer_view *bview)
{
D3D12_CPU_DESCRIPTOR_HANDLE view_handle =
dzn_descriptor_heap_get_cpu_handle(heap, desc_offset);
if (writeable)
heap->dev->CreateUnorderedAccessView(bview->buffer->res, NULL, &bview->uav_desc, view_handle);
else
heap->dev->CreateShaderResourceView(bview->buffer->res, &bview->srv_desc, view_handle);
}
void
dzn_descriptor_heap_write_buffer_desc(dzn_descriptor_heap *heap,
uint32_t desc_offset,
bool writeable,
const dzn_buffer_desc *info)
{
D3D12_CPU_DESCRIPTOR_HANDLE view_handle =
dzn_descriptor_heap_get_cpu_handle(heap, desc_offset);
VkDeviceSize size =
info->range == VK_WHOLE_SIZE ?
info->buffer->size - info->offset :
info->range;
if (info->type == VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER ||
info->type == VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC) {
assert(!writeable);
D3D12_CONSTANT_BUFFER_VIEW_DESC cbv_desc = {
.BufferLocation = info->buffer->res->GetGPUVirtualAddress() + info->offset,
.SizeInBytes = ALIGN_POT(size, 256),
};
heap->dev->CreateConstantBufferView(&cbv_desc, view_handle);
} else if (writeable) {
D3D12_UNORDERED_ACCESS_VIEW_DESC uav_desc = {
.Format = DXGI_FORMAT_R32_TYPELESS,
.ViewDimension = D3D12_UAV_DIMENSION_BUFFER,
.Buffer = {
.FirstElement = info->offset / sizeof(uint32_t),
.NumElements = (UINT)size / sizeof(uint32_t),
.Flags = D3D12_BUFFER_UAV_FLAG_RAW,
},
};
heap->dev->CreateUnorderedAccessView(info->buffer->res, NULL, &uav_desc, view_handle);
} else {
D3D12_SHADER_RESOURCE_VIEW_DESC srv_desc = {
.Format = DXGI_FORMAT_R32_TYPELESS,
.ViewDimension = D3D12_SRV_DIMENSION_BUFFER,
.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING,
.Buffer = {
.FirstElement = info->offset / sizeof(uint32_t),
.NumElements = (UINT)size / sizeof(uint32_t),
.Flags = D3D12_BUFFER_SRV_FLAG_RAW,
},
};
heap->dev->CreateShaderResourceView(info->buffer->res, &srv_desc, view_handle);
}
}
void
dzn_descriptor_heap_copy(dzn_descriptor_heap *dst_heap,
uint32_t dst_offset,
const dzn_descriptor_heap *src_heap,
uint32_t src_offset,
uint32_t desc_count)
{
D3D12_CPU_DESCRIPTOR_HANDLE dst_handle =
dzn_descriptor_heap_get_cpu_handle(dst_heap, dst_offset);
D3D12_CPU_DESCRIPTOR_HANDLE src_handle =
dzn_descriptor_heap_get_cpu_handle(src_heap, src_offset);
dst_heap->dev->CopyDescriptorsSimple(desc_count,
dst_handle,
src_handle,
dst_heap->type);
}
struct dzn_descriptor_set_ptr {
uint32_t binding, elem;
};
static void
dzn_descriptor_set_ptr_validate(const dzn_descriptor_set *set,
dzn_descriptor_set_ptr *ptr)
{
if (ptr->binding >= set->layout->binding_count) {
ptr->binding = ~0;
ptr->elem = ~0;
return;
}
uint32_t desc_count =
dzn_descriptor_set_layout_get_desc_count(set->layout, ptr->binding);
if (ptr->elem >= desc_count) {
ptr->binding = ~0;
ptr->elem = ~0;
}
}
static void
dzn_descriptor_set_ptr_init(const dzn_descriptor_set *set,
dzn_descriptor_set_ptr *ptr,
uint32_t binding, uint32_t elem)
{
ptr->binding = binding;
ptr->elem = elem;
dzn_descriptor_set_ptr_validate(set, ptr);
}
static void
dzn_descriptor_set_ptr_move(const dzn_descriptor_set *set,
dzn_descriptor_set_ptr *ptr,
uint32_t count)
{
if (ptr->binding == ~0)
return;
while (count) {
uint32_t desc_count =
dzn_descriptor_set_layout_get_desc_count(set->layout, ptr->binding);
if (count >= desc_count - ptr->elem) {
count -= desc_count - ptr->elem;
ptr->binding++;
ptr->elem = 0;
} else {
ptr->elem += count;
count = 0;
}
}
dzn_descriptor_set_ptr_validate(set, ptr);
}
bool
dzn_descriptor_set_ptr_is_valid(const dzn_descriptor_set_ptr *ptr)
{
return ptr->binding != ~0 && ptr->elem != ~0;
}
uint32_t
dzn_descriptor_set_remaining_descs_in_binding(const dzn_descriptor_set *set,
const dzn_descriptor_set_ptr *ptr)
{
if (ptr->binding >= set->layout->binding_count)
return 0;
uint32_t desc_count =
dzn_descriptor_set_layout_get_desc_count(set->layout, ptr->binding);
return desc_count >= ptr->elem ? desc_count - ptr->elem : 0;
}
uint32_t
dzn_descriptor_set_get_heap_offset(const dzn_descriptor_set *set,
D3D12_DESCRIPTOR_HEAP_TYPE type,
const dzn_descriptor_set_ptr *ptr,
bool writeable)
{
if (ptr->binding == ~0)
return ~0;
uint32_t base =
dzn_descriptor_set_layout_get_heap_offset(set->layout, ptr->binding, type, writeable);
if (base == ~0)
return ~0;
return base + ptr->elem;
}
void
dzn_descriptor_set_write_sampler_desc(dzn_descriptor_set *set,
const dzn_descriptor_set_ptr *ptr,
const dzn_sampler *sampler)
{
D3D12_DESCRIPTOR_HEAP_TYPE type = D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER;
uint32_t heap_offset =
dzn_descriptor_set_get_heap_offset(set, type, ptr, false);
if (heap_offset != ~0) {
mtx_lock(&set->pool->defragment_lock);
dzn_descriptor_heap_write_sampler_desc(&set->pool->heaps[type],
set->heap_offsets[type] + heap_offset,
sampler);
mtx_unlock(&set->pool->defragment_lock);
}
}
uint32_t
dzn_descriptor_set_get_dynamic_buffer_idx(const dzn_descriptor_set *set,
const dzn_descriptor_set_ptr *ptr)
{
if (ptr->binding == ~0)
return ~0;
uint32_t base = set->layout->bindings[ptr->binding].dynamic_buffer_idx;
if (base == ~0)
return ~0;
return base + ptr->elem;
}
void
dzn_descriptor_set_write_dynamic_buffer_desc(dzn_descriptor_set *set,
const dzn_descriptor_set_ptr *ptr,
const dzn_buffer_desc *info)
{
uint32_t dynamic_buffer_idx =
dzn_descriptor_set_get_dynamic_buffer_idx(set, ptr);
if (dynamic_buffer_idx == ~0)
return;
assert(dynamic_buffer_idx < set->layout->dynamic_buffers.count);
set->dynamic_buffers[dynamic_buffer_idx] = *info;
}
VkDescriptorType
dzn_descriptor_set_get_desc_vk_type(const dzn_descriptor_set *set,
const dzn_descriptor_set_ptr *ptr)
{
if (ptr->binding >= set->layout->binding_count)
return (VkDescriptorType)~0;
return set->layout->bindings[ptr->binding].type;
}
void
dzn_descriptor_set_write_image_view_desc(dzn_descriptor_set *set,
const dzn_descriptor_set_ptr *ptr,
bool cube_as_2darray,
const dzn_image_view *iview)
{
D3D12_DESCRIPTOR_HEAP_TYPE type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
uint32_t heap_offset =
dzn_descriptor_set_get_heap_offset(set, type, ptr, false);
if (heap_offset == ~0)
return;
mtx_lock(&set->pool->defragment_lock);
dzn_descriptor_heap_write_image_view_desc(&set->pool->heaps[type],
set->heap_offsets[type] + heap_offset,
false, cube_as_2darray,
iview);
VkDescriptorType vk_type = dzn_descriptor_set_get_desc_vk_type(set, ptr);
if (dzn_descriptor_type_depends_on_shader_usage(vk_type)) {
heap_offset =
dzn_descriptor_set_get_heap_offset(set, type, ptr, true);
assert(heap_offset != ~0);
dzn_descriptor_heap_write_image_view_desc(&set->pool->heaps[type],
set->heap_offsets[type] + heap_offset,
true, cube_as_2darray,
iview);
}
mtx_unlock(&set->pool->defragment_lock);
}
void
dzn_descriptor_set_write_buffer_view_desc(dzn_descriptor_set *set,
const dzn_descriptor_set_ptr *ptr,
const dzn_buffer_view *bview)
{
D3D12_DESCRIPTOR_HEAP_TYPE type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
uint32_t heap_offset =
dzn_descriptor_set_get_heap_offset(set, type, ptr, false);
if (heap_offset == ~0)
return;
mtx_lock(&set->pool->defragment_lock);
dzn_descriptor_heap_write_buffer_view_desc(&set->pool->heaps[type],
set->heap_offsets[type] + heap_offset,
false, bview);
VkDescriptorType vk_type = dzn_descriptor_set_get_desc_vk_type(set, ptr);
if (dzn_descriptor_type_depends_on_shader_usage(vk_type)) {
heap_offset =
dzn_descriptor_set_get_heap_offset(set, type, ptr, true);
assert(heap_offset != ~0);
dzn_descriptor_heap_write_buffer_view_desc(&set->pool->heaps[type],
set->heap_offsets[type] + heap_offset,
true, bview);
}
mtx_unlock(&set->pool->defragment_lock);
}
void
dzn_descriptor_set_write_buffer_desc(dzn_descriptor_set *set,
const dzn_descriptor_set_ptr *ptr,
const dzn_buffer_desc *bdesc)
{
D3D12_DESCRIPTOR_HEAP_TYPE type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
uint32_t heap_offset =
dzn_descriptor_set_get_heap_offset(set, type, ptr, false);
if (heap_offset == ~0)
return;
mtx_lock(&set->pool->defragment_lock);
dzn_descriptor_heap_write_buffer_desc(&set->pool->heaps[type],
set->heap_offsets[type] + heap_offset,
false, bdesc);
VkDescriptorType vk_type = dzn_descriptor_set_get_desc_vk_type(set, ptr);
if (dzn_descriptor_type_depends_on_shader_usage(vk_type)) {
heap_offset =
dzn_descriptor_set_get_heap_offset(set, type, ptr, true);
assert(heap_offset != ~0);
dzn_descriptor_heap_write_buffer_desc(&set->pool->heaps[type],
set->heap_offsets[type] + heap_offset,
true, bdesc);
}
mtx_unlock(&set->pool->defragment_lock);
}
static void
dzn_descriptor_set_init(dzn_descriptor_set *set,
dzn_device *device,
dzn_descriptor_pool *pool,
dzn_descriptor_set_layout *layout)
{
vk_object_base_init(&device->vk, &set->base, VK_OBJECT_TYPE_DESCRIPTOR_SET);
set->pool = pool;
set->layout = layout;
mtx_lock(&pool->defragment_lock);
dzn_foreach_pool_type(type) {
set->heap_offsets[type] = pool->free_offset[type];
set->heap_sizes[type] = layout->range_desc_count[type];
set->pool->free_offset[type] += layout->range_desc_count[type];
}
mtx_unlock(&pool->defragment_lock);
/* Pre-fill the immutable samplers */
if (layout->immutable_sampler_count) {
for (uint32_t b = 0; b < layout->binding_count; b++) {
bool has_samplers =
layout->bindings[b].type == VK_DESCRIPTOR_TYPE_SAMPLER ||
layout->bindings[b].type == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
if (!has_samplers || layout->bindings[b].immutable_sampler_idx == ~0)
continue;
dzn_descriptor_set_ptr ptr;
const dzn_sampler **sampler =
&layout->immutable_samplers[layout->bindings[b].immutable_sampler_idx];
for (dzn_descriptor_set_ptr_init(set, &ptr, b, 0);
dzn_descriptor_set_ptr_is_valid(&ptr);
dzn_descriptor_set_ptr_move(set, &ptr, 1)) {
dzn_descriptor_set_write_sampler_desc(set, &ptr, *sampler);
sampler++;
}
}
}
}
static void
dzn_descriptor_set_finish(dzn_descriptor_set *set)
{
vk_object_base_finish(&set->base);
set->pool = NULL;
set->layout = NULL;
}
static void
dzn_descriptor_pool_destroy(dzn_descriptor_pool *pool,
const VkAllocationCallbacks *pAllocator)
{
if (!pool)
return;
dzn_device *device = container_of(pool->base.device, dzn_device, vk);
dzn_foreach_pool_type (type) {
if (pool->desc_count[type])
dzn_descriptor_heap_finish(&pool->heaps[type]);
}
vk_object_base_finish(&pool->base);
vk_free2(&device->vk.alloc, pAllocator, pool);
}
static VkResult
dzn_descriptor_pool_create(dzn_device *device,
const VkDescriptorPoolCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator,
VkDescriptorPool *out)
{
VK_MULTIALLOC(ma);
VK_MULTIALLOC_DECL(&ma, dzn_descriptor_pool, pool, 1);
VK_MULTIALLOC_DECL(&ma, dzn_descriptor_set, sets, pCreateInfo->maxSets);
if (!vk_multialloc_zalloc2(&ma, &device->vk.alloc, pAllocator,
VK_SYSTEM_ALLOCATION_SCOPE_OBJECT))
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
pool->alloc = pAllocator ? *pAllocator : device->vk.alloc;
pool->sets = sets;
pool->set_count = pCreateInfo->maxSets;
mtx_init(&pool->defragment_lock, mtx_plain);
vk_object_base_init(&device->vk, &pool->base, VK_OBJECT_TYPE_DESCRIPTOR_POOL);
for (uint32_t p = 0; p < pCreateInfo->poolSizeCount; p++) {
VkDescriptorType type = pCreateInfo->pPoolSizes[p].type;
uint32_t num_desc = pCreateInfo->pPoolSizes[p].descriptorCount;
switch (type) {
case VK_DESCRIPTOR_TYPE_SAMPLER:
pool->desc_count[D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER] += num_desc;
break;
case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
pool->desc_count[D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV] += num_desc;
pool->desc_count[D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER] += num_desc;
break;
case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:
pool->desc_count[D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV] += num_desc;
break;
case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
/* Reserve one UAV and one SRV slot for those. */
pool->desc_count[D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV] += num_desc * 2;
break;
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
break;
default:
unreachable("Unsupported desc type");
}
}
dzn_foreach_pool_type (type) {
if (!pool->desc_count[type])
continue;
VkResult result =
dzn_descriptor_heap_init(&pool->heaps[type], device, type, pool->desc_count[type], false);
if (result != VK_SUCCESS) {
dzn_descriptor_pool_destroy(pool, pAllocator);
return result;
}
}
*out = dzn_descriptor_pool_to_handle(pool);
return VK_SUCCESS;
}
VkResult
dzn_descriptor_pool_defragment_heap(dzn_descriptor_pool *pool,
D3D12_DESCRIPTOR_HEAP_TYPE type)
{
dzn_device *device = container_of(pool->base.device, dzn_device, vk);
dzn_descriptor_heap new_heap;
VkResult result =
dzn_descriptor_heap_init(&new_heap, device, type,
pool->heaps[type].desc_count,
false);
if (result != VK_SUCCESS)
return result;
mtx_lock(&pool->defragment_lock);
uint32_t heap_offset = 0;
for (uint32_t s = 0; s < pool->set_count; s++) {
if (!pool->sets[s].layout)
continue;
dzn_descriptor_heap_copy(&new_heap, heap_offset,
&pool->heaps[type],
pool->sets[s].heap_offsets[type],
pool->sets[s].heap_sizes[type]);
pool->sets[s].heap_offsets[type] = heap_offset;
heap_offset += pool->sets[s].heap_sizes[type];
}
mtx_unlock(&pool->defragment_lock);
dzn_descriptor_heap_finish(&pool->heaps[type]);
pool->heaps[type] = new_heap;
return VK_SUCCESS;
}
VKAPI_ATTR VkResult VKAPI_CALL
dzn_CreateDescriptorPool(VkDevice device,
const VkDescriptorPoolCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator,
VkDescriptorPool *pDescriptorPool)
{
return dzn_descriptor_pool_create(dzn_device_from_handle(device),
pCreateInfo, pAllocator, pDescriptorPool);
}
VKAPI_ATTR void VKAPI_CALL
dzn_DestroyDescriptorPool(VkDevice device,
VkDescriptorPool descriptorPool,
const VkAllocationCallbacks *pAllocator)
{
return dzn_descriptor_pool_destroy(dzn_descriptor_pool_from_handle(descriptorPool),
pAllocator);
}
VKAPI_ATTR VkResult VKAPI_CALL
dzn_ResetDescriptorPool(VkDevice device,
VkDescriptorPool descriptorPool,
VkDescriptorPoolResetFlags flags)
{
VK_FROM_HANDLE(dzn_descriptor_pool, pool, descriptorPool);
for (uint32_t s = 0; s < pool->set_count; s++)
dzn_descriptor_set_finish(&pool->sets[s]);
dzn_foreach_pool_type(type)
pool->free_offset[type] = 0;
return VK_SUCCESS;
}
void
dzn_descriptor_heap_pool_finish(dzn_descriptor_heap_pool *pool)
{
list_splicetail(&pool->active_heaps, &pool->free_heaps);
list_for_each_entry_safe(dzn_descriptor_heap_pool_entry, entry, &pool->free_heaps, link) {
list_del(&entry->link);
dzn_descriptor_heap_finish(&entry->heap);
vk_free(pool->alloc, entry);
}
}
void
dzn_descriptor_heap_pool_init(dzn_descriptor_heap_pool *pool,
dzn_device *device,
D3D12_DESCRIPTOR_HEAP_TYPE type,
bool shader_visible,
const VkAllocationCallbacks *alloc)
{
assert(!shader_visible ||
type == D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV ||
type == D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER);
pool->alloc = alloc;
pool->type = type;
pool->shader_visible = shader_visible;
list_inithead(&pool->active_heaps);
list_inithead(&pool->free_heaps);
pool->offset = 0;
pool->desc_sz = device->dev->GetDescriptorHandleIncrementSize(type);
}
VkResult
dzn_descriptor_heap_pool_alloc_slots(dzn_descriptor_heap_pool *pool,
dzn_device *device, uint32_t desc_count,
dzn_descriptor_heap **heap,
uint32_t *first_slot)
{
dzn_descriptor_heap *last_heap =
list_is_empty(&pool->active_heaps) ?
NULL :
&(list_last_entry(&pool->active_heaps, dzn_descriptor_heap_pool_entry, link)->heap);
uint32_t last_heap_desc_count =
last_heap ? last_heap->desc_count : 0;
if (pool->offset + desc_count > last_heap_desc_count) {
uint32_t granularity =
(pool->type == D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV ||
pool->type == D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER) ?
64 * 1024 : 4 * 1024;
uint32_t alloc_step = ALIGN_POT(desc_count * pool->desc_sz, granularity);
uint32_t heap_desc_count = MAX2(alloc_step / pool->desc_sz, 16);
dzn_descriptor_heap_pool_entry *new_heap = NULL;
list_for_each_entry_safe(dzn_descriptor_heap_pool_entry, entry, &pool->free_heaps, link) {
if (entry->heap.desc_count >= heap_desc_count) {
new_heap = entry;
list_del(&entry->link);
break;
}
}
if (!new_heap) {
new_heap = (dzn_descriptor_heap_pool_entry *)
vk_zalloc(pool->alloc, sizeof(*new_heap), 8,
VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
if (!new_heap)
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
VkResult result =
dzn_descriptor_heap_init(&new_heap->heap, device, pool->type,
heap_desc_count, pool->shader_visible);
if (result != VK_SUCCESS) {
vk_free(&device->vk.alloc, new_heap);
return result;
}
}
list_addtail(&new_heap->link, &pool->active_heaps);
pool->offset = 0;
last_heap = &new_heap->heap;
}
*heap = last_heap;
*first_slot = pool->offset;
pool->offset += desc_count;
return VK_SUCCESS;
}
void
dzn_descriptor_heap_pool_reset(dzn_descriptor_heap_pool *pool)
{
pool->offset = 0;
list_splicetail(&pool->active_heaps, &pool->free_heaps);
list_inithead(&pool->free_heaps);
}
VKAPI_ATTR VkResult VKAPI_CALL
dzn_AllocateDescriptorSets(VkDevice dev,
const VkDescriptorSetAllocateInfo *pAllocateInfo,
VkDescriptorSet *pDescriptorSets)
{
VK_FROM_HANDLE(dzn_descriptor_pool, pool, pAllocateInfo->descriptorPool);
VK_FROM_HANDLE(dzn_device, device, dev);
VkResult result;
unsigned i;
if (pAllocateInfo->descriptorSetCount > (pool->set_count - pool->used_set_count))
return VK_ERROR_OUT_OF_POOL_MEMORY;
uint32_t set_idx = 0;
for (i = 0; i < pAllocateInfo->descriptorSetCount; i++) {
VK_FROM_HANDLE(dzn_descriptor_set_layout, layout, pAllocateInfo->pSetLayouts[i]);
dzn_foreach_pool_type(type) {
if (pool->used_desc_count[type] + layout->range_desc_count[type] > pool->desc_count[type]) {
dzn_FreeDescriptorSets(dev, pAllocateInfo->descriptorPool, i, pDescriptorSets);
return vk_error(device, VK_ERROR_OUT_OF_POOL_MEMORY);
}
if (pool->free_offset[type] + layout->range_desc_count[type] > pool->desc_count[type]) {
result = dzn_descriptor_pool_defragment_heap(pool, type);
if (result != VK_SUCCESS) {
dzn_FreeDescriptorSets(dev, pAllocateInfo->descriptorPool, i, pDescriptorSets);
return vk_error(device, VK_ERROR_FRAGMENTED_POOL);
}
}
}
dzn_descriptor_set *set = NULL;
for (; set_idx < pool->set_count; set_idx++) {
if (!pool->sets[set_idx].layout) {
set = &pool->sets[set_idx];
break;
}
}
dzn_descriptor_set_init(set, device, pool, layout);
pDescriptorSets[i] = dzn_descriptor_set_to_handle(set);
}
return VK_SUCCESS;
}
VKAPI_ATTR VkResult VKAPI_CALL
dzn_FreeDescriptorSets(VkDevice dev,
VkDescriptorPool descriptorPool,
uint32_t count,
const VkDescriptorSet *pDescriptorSets)
{
VK_FROM_HANDLE(dzn_descriptor_pool, pool, descriptorPool);
VK_FROM_HANDLE(dzn_device, device, dev);
for (uint32_t s = 0; s < count; s++) {
VK_FROM_HANDLE(dzn_descriptor_set, set, pDescriptorSets[s]);
if (!set)
continue;
assert(set->pool == pool);
dzn_descriptor_set_finish(set);
}
mtx_lock(&pool->defragment_lock);
dzn_foreach_pool_type(type)
pool->free_offset[type] = 0;
for (uint32_t s = 0; s < pool->set_count; s++) {
const dzn_descriptor_set *set = &pool->sets[s];
if (set->layout) {
dzn_foreach_pool_type (type) {
pool->free_offset[type] =
MAX2(pool->free_offset[type],
set->heap_offsets[type] +
set->layout->range_desc_count[type]);
}
}
}
mtx_unlock(&pool->defragment_lock);
return VK_SUCCESS;
}
static void
dzn_descriptor_set_write(const VkWriteDescriptorSet *pDescriptorWrite)
{
VK_FROM_HANDLE(dzn_descriptor_set, set, pDescriptorWrite->dstSet);
dzn_descriptor_set_ptr ptr;
dzn_descriptor_set_ptr_init(set, &ptr,
pDescriptorWrite->dstBinding,
pDescriptorWrite->dstArrayElement);
uint32_t desc_count = pDescriptorWrite->descriptorCount;
uint32_t d = 0;
bool cube_as_2darray =
pDescriptorWrite->descriptorType == VK_DESCRIPTOR_TYPE_STORAGE_IMAGE;
switch (pDescriptorWrite->descriptorType) {
case VK_DESCRIPTOR_TYPE_SAMPLER:
for (; dzn_descriptor_set_ptr_is_valid(&ptr) && d < desc_count;
dzn_descriptor_set_ptr_move(set, &ptr, 1)) {
assert(dzn_descriptor_set_get_desc_vk_type(set, &ptr) == pDescriptorWrite->descriptorType);
const VkDescriptorImageInfo *pImageInfo = pDescriptorWrite->pImageInfo + d;
VK_FROM_HANDLE(dzn_sampler, sampler, pImageInfo->sampler);
if (sampler)
dzn_descriptor_set_write_sampler_desc(set, &ptr, sampler);
d++;
}
break;
case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
for (; dzn_descriptor_set_ptr_is_valid(&ptr) && d < desc_count;
dzn_descriptor_set_ptr_move(set, &ptr, 1)) {
assert(dzn_descriptor_set_get_desc_vk_type(set, &ptr) == pDescriptorWrite->descriptorType);
const VkDescriptorImageInfo *pImageInfo = pDescriptorWrite->pImageInfo + d;
VK_FROM_HANDLE(dzn_sampler, sampler, pImageInfo->sampler);
VK_FROM_HANDLE(dzn_image_view, iview, pImageInfo->imageView);
if (sampler)
dzn_descriptor_set_write_sampler_desc(set, &ptr, sampler);
if (iview)
dzn_descriptor_set_write_image_view_desc(set, &ptr, cube_as_2darray, iview);
d++;
}
break;
case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:
case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
for (; dzn_descriptor_set_ptr_is_valid(&ptr) && d < desc_count;
dzn_descriptor_set_ptr_move(set, &ptr, 1)) {
assert(dzn_descriptor_set_get_desc_vk_type(set, &ptr) == pDescriptorWrite->descriptorType);
const VkDescriptorImageInfo *pImageInfo = pDescriptorWrite->pImageInfo + d;
VK_FROM_HANDLE(dzn_image_view, iview, pImageInfo->imageView);
if (iview)
dzn_descriptor_set_write_image_view_desc(set, &ptr, cube_as_2darray, iview);
d++;
}
break;
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
for (; dzn_descriptor_set_ptr_is_valid(&ptr) && d < desc_count;
dzn_descriptor_set_ptr_move(set, &ptr, 1)) {
assert(dzn_descriptor_set_get_desc_vk_type(set, &ptr) == pDescriptorWrite->descriptorType);
const VkDescriptorBufferInfo *binfo = &pDescriptorWrite->pBufferInfo[d];
dzn_buffer_desc desc {
pDescriptorWrite->descriptorType,
dzn_buffer_from_handle(binfo->buffer),
binfo->range, binfo->offset
};
if (desc.buffer)
dzn_descriptor_set_write_buffer_desc(set, &ptr, &desc);
d++;
}
break;
case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
for (; dzn_descriptor_set_ptr_is_valid(&ptr) && d < desc_count;
dzn_descriptor_set_ptr_move(set, &ptr, 1)) {
assert(dzn_descriptor_set_get_desc_vk_type(set, &ptr) == pDescriptorWrite->descriptorType);
const VkDescriptorBufferInfo *binfo = &pDescriptorWrite->pBufferInfo[d];
dzn_buffer_desc desc {
pDescriptorWrite->descriptorType,
dzn_buffer_from_handle(binfo->buffer),
binfo->range, binfo->offset
};
if (desc.buffer)
dzn_descriptor_set_write_dynamic_buffer_desc(set, &ptr, &desc);
d++;
}
break;
case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
for (; dzn_descriptor_set_ptr_is_valid(&ptr) && d < desc_count;
dzn_descriptor_set_ptr_move(set, &ptr, 1)) {
assert(dzn_descriptor_set_get_desc_vk_type(set, &ptr) == pDescriptorWrite->descriptorType);
VK_FROM_HANDLE(dzn_buffer_view, bview, pDescriptorWrite->pTexelBufferView[d]);
if (bview)
dzn_descriptor_set_write_buffer_view_desc(set, &ptr, bview);
d++;
}
break;
default:
unreachable("invalid descriptor type");
break;
}
assert(d == pDescriptorWrite->descriptorCount);
}
static void
dzn_descriptor_set_copy(const VkCopyDescriptorSet *pDescriptorCopy)
{
VK_FROM_HANDLE(dzn_descriptor_set, src_set, pDescriptorCopy->srcSet);
VK_FROM_HANDLE(dzn_descriptor_set, dst_set, pDescriptorCopy->dstSet);
dzn_descriptor_set_ptr src_ptr, dst_ptr;
dzn_descriptor_set_ptr_init(src_set, &src_ptr,
pDescriptorCopy->srcBinding,
pDescriptorCopy->srcArrayElement);
dzn_descriptor_set_ptr_init(dst_set, &dst_ptr,
pDescriptorCopy->dstBinding,
pDescriptorCopy->dstArrayElement);
uint32_t copied_count = 0;
while (dzn_descriptor_set_ptr_is_valid(&src_ptr) &&
dzn_descriptor_set_ptr_is_valid(&dst_ptr)) {
VkDescriptorType src_type =
dzn_descriptor_set_get_desc_vk_type(src_set, &src_ptr);
VkDescriptorType dst_type =
dzn_descriptor_set_get_desc_vk_type(dst_set, &dst_ptr);
assert(copied_count < pDescriptorCopy->descriptorCount);
assert(src_type == dst_type);
uint32_t count =
MIN2(dzn_descriptor_set_remaining_descs_in_binding(src_set, &src_ptr),
dzn_descriptor_set_remaining_descs_in_binding(dst_set, &dst_ptr));
if (src_type == VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC ||
src_type == VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC) {
uint32_t src_idx =
dzn_descriptor_set_get_dynamic_buffer_idx(src_set, &src_ptr);
uint32_t dst_idx =
dzn_descriptor_set_get_dynamic_buffer_idx(dst_set, &dst_ptr);
memcpy(&dst_set->dynamic_buffers[dst_idx],
&src_set->dynamic_buffers[src_idx],
sizeof(*dst_set->dynamic_buffers) * count);
} else {
dzn_foreach_pool_type(type) {
uint32_t src_heap_offset =
dzn_descriptor_set_get_heap_offset(src_set, type, &src_ptr, false);
uint32_t dst_heap_offset =
dzn_descriptor_set_get_heap_offset(dst_set, type, &dst_ptr, false);
if (src_heap_offset == ~0) {
assert(dst_heap_offset == ~0);
continue;
}
mtx_lock(&src_set->pool->defragment_lock);
mtx_lock(&dst_set->pool->defragment_lock);
dzn_descriptor_heap_copy(&dst_set->pool->heaps[type],
dst_set->heap_offsets[type] + dst_heap_offset,
&src_set->pool->heaps[type],
src_set->heap_offsets[type] + src_heap_offset,
count);
if (dzn_descriptor_type_depends_on_shader_usage(src_type)) {
src_heap_offset =
dzn_descriptor_set_get_heap_offset(src_set, type, &src_ptr, true);
dst_heap_offset =
dzn_descriptor_set_get_heap_offset(dst_set, type, &dst_ptr, true);
assert(src_heap_offset != ~0);
assert(dst_heap_offset != ~0);
dzn_descriptor_heap_copy(&dst_set->pool->heaps[type],
dst_set->heap_offsets[type] + dst_heap_offset,
&src_set->pool->heaps[type],
src_set->heap_offsets[type] + src_heap_offset,
count);
}
mtx_unlock(&dst_set->pool->defragment_lock);
mtx_unlock(&src_set->pool->defragment_lock);
}
}
dzn_descriptor_set_ptr_move(src_set, &src_ptr, count);
dzn_descriptor_set_ptr_move(dst_set, &dst_ptr, count);
copied_count += count;
}
assert(copied_count == pDescriptorCopy->descriptorCount);
}
VKAPI_ATTR void VKAPI_CALL
dzn_UpdateDescriptorSets(VkDevice _device,
uint32_t descriptorWriteCount,
const VkWriteDescriptorSet *pDescriptorWrites,
uint32_t descriptorCopyCount,
const VkCopyDescriptorSet *pDescriptorCopies)
{
VK_FROM_HANDLE(dzn_device, dev, _device);
for (unsigned i = 0; i < descriptorWriteCount; i++)
dzn_descriptor_set_write(&pDescriptorWrites[i]);
for (unsigned i = 0; i < descriptorCopyCount; i++)
dzn_descriptor_set_copy(&pDescriptorCopies[i]);
}