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citra/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

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// Copyright 2023 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <boost/container/static_vector.hpp>
#include "common/common_paths.h"
#include "common/file_util.h"
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "common/scope_exit.h"
#include "common/settings.h"
#include "video_core/renderer_vulkan/pica_to_vk.h"
#include "video_core/renderer_vulkan/vk_instance.h"
#include "video_core/renderer_vulkan/vk_pipeline_cache.h"
#include "video_core/renderer_vulkan/vk_renderpass_cache.h"
#include "video_core/renderer_vulkan/vk_scheduler.h"
#include "video_core/renderer_vulkan/vk_shader_util.h"
#include "video_core/shader/generator/glsl_fs_shader_gen.h"
#include "video_core/shader/generator/glsl_shader_gen.h"
#include "video_core/shader/generator/spv_fs_shader_gen.h"
using namespace Pica::Shader::Generator;
using Pica::Shader::FSConfig;
MICROPROFILE_DEFINE(Vulkan_Bind, "Vulkan", "Pipeline Bind", MP_RGB(192, 32, 32));
namespace Vulkan {
u32 AttribBytes(Pica::PipelineRegs::VertexAttributeFormat format, u32 size) {
switch (format) {
case Pica::PipelineRegs::VertexAttributeFormat::FLOAT:
return sizeof(float) * size;
case Pica::PipelineRegs::VertexAttributeFormat::SHORT:
return sizeof(u16) * size;
case Pica::PipelineRegs::VertexAttributeFormat::BYTE:
case Pica::PipelineRegs::VertexAttributeFormat::UBYTE:
return sizeof(u8) * size;
}
return 0;
}
AttribLoadFlags MakeAttribLoadFlag(Pica::PipelineRegs::VertexAttributeFormat format) {
switch (format) {
case Pica::PipelineRegs::VertexAttributeFormat::BYTE:
case Pica::PipelineRegs::VertexAttributeFormat::SHORT:
return AttribLoadFlags::Sint;
case Pica::PipelineRegs::VertexAttributeFormat::UBYTE:
return AttribLoadFlags::Uint;
default:
return AttribLoadFlags::Float;
}
}
constexpr std::array<vk::DescriptorSetLayoutBinding, 6> BUFFER_BINDINGS = {{
{0, vk::DescriptorType::eUniformBufferDynamic, 1, vk::ShaderStageFlagBits::eVertex},
{1, vk::DescriptorType::eUniformBufferDynamic, 1,
vk::ShaderStageFlagBits::eVertex | vk::ShaderStageFlagBits::eGeometry},
{2, vk::DescriptorType::eUniformBufferDynamic, 1, vk::ShaderStageFlagBits::eFragment},
{3, vk::DescriptorType::eUniformTexelBuffer, 1, vk::ShaderStageFlagBits::eFragment},
{4, vk::DescriptorType::eUniformTexelBuffer, 1, vk::ShaderStageFlagBits::eFragment},
{5, vk::DescriptorType::eUniformTexelBuffer, 1, vk::ShaderStageFlagBits::eFragment},
}};
constexpr std::array<vk::DescriptorSetLayoutBinding, 3> TEXTURE_BINDINGS = {{
{0, vk::DescriptorType::eCombinedImageSampler, 1, vk::ShaderStageFlagBits::eFragment},
{1, vk::DescriptorType::eCombinedImageSampler, 1, vk::ShaderStageFlagBits::eFragment},
{2, vk::DescriptorType::eCombinedImageSampler, 1, vk::ShaderStageFlagBits::eFragment},
}};
// TODO: Use descriptor array for shadow cube
constexpr std::array<vk::DescriptorSetLayoutBinding, 7> SHADOW_BINDINGS = {{
{0, vk::DescriptorType::eStorageImage, 1, vk::ShaderStageFlagBits::eFragment},
{1, vk::DescriptorType::eStorageImage, 1, vk::ShaderStageFlagBits::eFragment},
{2, vk::DescriptorType::eStorageImage, 1, vk::ShaderStageFlagBits::eFragment},
{3, vk::DescriptorType::eStorageImage, 1, vk::ShaderStageFlagBits::eFragment},
{4, vk::DescriptorType::eStorageImage, 1, vk::ShaderStageFlagBits::eFragment},
{5, vk::DescriptorType::eStorageImage, 1, vk::ShaderStageFlagBits::eFragment},
{6, vk::DescriptorType::eStorageImage, 1, vk::ShaderStageFlagBits::eFragment},
}};
PipelineCache::PipelineCache(const Instance& instance_, Scheduler& scheduler_,
RenderpassCache& renderpass_cache_, DescriptorPool& pool_)
: instance{instance_}, scheduler{scheduler_}, renderpass_cache{renderpass_cache_}, pool{pool_},
num_worker_threads{std::max(std::thread::hardware_concurrency(), 2U)},
workers{num_worker_threads, "Pipeline workers"},
descriptor_set_providers{DescriptorSetProvider{instance, pool, BUFFER_BINDINGS},
DescriptorSetProvider{instance, pool, TEXTURE_BINDINGS},
DescriptorSetProvider{instance, pool, SHADOW_BINDINGS}},
trivial_vertex_shader{
instance, vk::ShaderStageFlagBits::eVertex,
GLSL::GenerateTrivialVertexShader(instance.IsShaderClipDistanceSupported(), true)} {
profile = Pica::Shader::Profile{
.has_separable_shaders = true,
.has_clip_planes = instance.IsShaderClipDistanceSupported(),
.has_geometry_shader = instance.UseGeometryShaders(),
.has_custom_border_color = instance.IsCustomBorderColorSupported(),
.has_fragment_shader_interlock = instance.IsFragmentShaderInterlockSupported(),
.has_fragment_shader_barycentric = instance.IsFragmentShaderBarycentricSupported(),
.has_blend_minmax_factor = false,
.has_minus_one_to_one_range = false,
.has_logic_op = !instance.NeedsLogicOpEmulation(),
.is_vulkan = true,
};
BuildLayout();
}
void PipelineCache::BuildLayout() {
std::array<vk::DescriptorSetLayout, NUM_RASTERIZER_SETS> descriptor_set_layouts;
std::transform(descriptor_set_providers.begin(), descriptor_set_providers.end(),
descriptor_set_layouts.begin(),
[](const auto& provider) { return provider.Layout(); });
const vk::PipelineLayoutCreateInfo layout_info = {
.setLayoutCount = NUM_RASTERIZER_SETS,
.pSetLayouts = descriptor_set_layouts.data(),
.pushConstantRangeCount = 0,
.pPushConstantRanges = nullptr,
};
pipeline_layout = instance.GetDevice().createPipelineLayoutUnique(layout_info);
}
PipelineCache::~PipelineCache() {
SaveDiskCache();
}
void PipelineCache::LoadDiskCache() {
if (!Settings::values.use_disk_shader_cache || !EnsureDirectories()) {
return;
}
const auto cache_dir = GetPipelineCacheDir();
const u32 vendor_id = instance.GetVendorID();
const u32 device_id = instance.GetDeviceID();
const auto cache_file_path = fmt::format("{}{:x}{:x}.bin", cache_dir, vendor_id, device_id);
vk::PipelineCacheCreateInfo cache_info{};
std::vector<u8> cache_data;
SCOPE_EXIT({
const vk::Device device = instance.GetDevice();
pipeline_cache = device.createPipelineCacheUnique(cache_info);
});
FileUtil::IOFile cache_file{cache_file_path, "rb"};
if (!cache_file.IsOpen()) {
LOG_INFO(Render_Vulkan, "No pipeline cache found for device");
return;
}
const u64 cache_file_size = cache_file.GetSize();
cache_data.resize(cache_file_size);
if (cache_file.ReadBytes(cache_data.data(), cache_file_size) != cache_file_size) {
LOG_ERROR(Render_Vulkan, "Error during pipeline cache read");
return;
}
if (!IsCacheValid(cache_data)) {
LOG_WARNING(Render_Vulkan, "Pipeline cache provided invalid, removing");
cache_file.Close();
FileUtil::Delete(cache_file_path);
return;
}
LOG_INFO(Render_Vulkan, "Loading pipeline cache with size {} KB", cache_file_size / 1024);
cache_info.initialDataSize = cache_file_size;
cache_info.pInitialData = cache_data.data();
}
void PipelineCache::SaveDiskCache() {
if (!Settings::values.use_disk_shader_cache || !EnsureDirectories() || !pipeline_cache) {
return;
}
const auto cache_dir = GetPipelineCacheDir();
const u32 vendor_id = instance.GetVendorID();
const u32 device_id = instance.GetDeviceID();
const auto cache_file_path = fmt::format("{}{:x}{:x}.bin", cache_dir, vendor_id, device_id);
FileUtil::IOFile cache_file{cache_file_path, "wb"};
if (!cache_file.IsOpen()) {
LOG_ERROR(Render_Vulkan, "Unable to open pipeline cache for writing");
return;
}
const vk::Device device = instance.GetDevice();
const auto cache_data = device.getPipelineCacheData(*pipeline_cache);
if (cache_file.WriteBytes(cache_data.data(), cache_data.size()) != cache_data.size()) {
LOG_ERROR(Render_Vulkan, "Error during pipeline cache write");
return;
}
}
bool PipelineCache::BindPipeline(const PipelineInfo& info, bool wait_built) {
MICROPROFILE_SCOPE(Vulkan_Bind);
u64 shader_hash = 0;
for (u32 i = 0; i < MAX_SHADER_STAGES; i++) {
shader_hash = Common::HashCombine(shader_hash, shader_hashes[i]);
}
const u64 info_hash = info.Hash(instance);
const u64 pipeline_hash = Common::HashCombine(shader_hash, info_hash);
auto [it, new_pipeline] = graphics_pipelines.try_emplace(pipeline_hash);
if (new_pipeline) {
it.value() =
std::make_unique<GraphicsPipeline>(instance, renderpass_cache, info, *pipeline_cache,
*pipeline_layout, current_shaders, &workers);
}
GraphicsPipeline* const pipeline{it->second.get()};
if (!pipeline->IsDone() && !pipeline->TryBuild(wait_built)) {
return false;
}
u32 new_descriptors_start = 0;
std::span<vk::DescriptorSet> new_descriptors_span{};
std::span<u32> new_offsets_span{};
// Ensure all the descriptor sets are set at least once at the beginning.
if (scheduler.IsStateDirty(StateFlags::DescriptorSets)) {
set_dirty.set();
}
if (set_dirty.any()) {
for (u32 i = 0; i < NUM_RASTERIZER_SETS; i++) {
if (!set_dirty.test(i)) {
continue;
}
bound_descriptor_sets[i] = descriptor_set_providers[i].Acquire(update_data[i]);
}
new_descriptors_span = bound_descriptor_sets;
// Only send new offsets if the buffer descriptor-set changed.
if (set_dirty.test(0)) {
new_offsets_span = offsets;
}
// Try to compact the number of updated descriptor-set slots to the ones that have actually
// changed
if (!set_dirty.all()) {
const u64 dirty_mask = set_dirty.to_ulong();
new_descriptors_start = static_cast<u32>(std::countr_zero(dirty_mask));
const u32 new_descriptors_end = 64u - static_cast<u32>(std::countl_zero(dirty_mask));
const u32 new_descriptors_size = new_descriptors_end - new_descriptors_start;
new_descriptors_span =
new_descriptors_span.subspan(new_descriptors_start, new_descriptors_size);
}
set_dirty.reset();
}
boost::container::static_vector<vk::DescriptorSet, NUM_RASTERIZER_SETS> new_descriptors(
new_descriptors_span.begin(), new_descriptors_span.end());
boost::container::static_vector<u32, NUM_DYNAMIC_OFFSETS> new_offsets(new_offsets_span.begin(),
new_offsets_span.end());
const bool is_dirty = scheduler.IsStateDirty(StateFlags::Pipeline);
const bool pipeline_dirty = (current_pipeline != pipeline) || is_dirty;
scheduler.Record([this, is_dirty, pipeline_dirty, pipeline,
current_dynamic = current_info.dynamic, dynamic = info.dynamic,
new_descriptors_start, descriptor_sets = std::move(new_descriptors),
offsets = std::move(new_offsets),
current_rasterization = current_info.rasterization,
current_depth_stencil = current_info.depth_stencil,
rasterization = info.rasterization,
depth_stencil = info.depth_stencil](vk::CommandBuffer cmdbuf) {
if (dynamic.viewport != current_dynamic.viewport || is_dirty) {
const vk::Viewport vk_viewport = {
.x = static_cast<f32>(dynamic.viewport.left),
.y = static_cast<f32>(dynamic.viewport.top),
.width = static_cast<f32>(dynamic.viewport.GetWidth()),
.height = static_cast<f32>(dynamic.viewport.GetHeight()),
.minDepth = 0.f,
.maxDepth = 1.f,
};
cmdbuf.setViewport(0, vk_viewport);
}
if (dynamic.scissor != current_dynamic.scissor || is_dirty) {
const vk::Rect2D scissor = {
.offset{
.x = static_cast<s32>(dynamic.scissor.left),
.y = static_cast<s32>(dynamic.scissor.bottom),
},
.extent{
.width = dynamic.scissor.GetWidth(),
.height = dynamic.scissor.GetHeight(),
},
};
cmdbuf.setScissor(0, scissor);
}
if (dynamic.stencil_compare_mask != current_dynamic.stencil_compare_mask || is_dirty) {
cmdbuf.setStencilCompareMask(vk::StencilFaceFlagBits::eFrontAndBack,
dynamic.stencil_compare_mask);
}
if (dynamic.stencil_write_mask != current_dynamic.stencil_write_mask || is_dirty) {
cmdbuf.setStencilWriteMask(vk::StencilFaceFlagBits::eFrontAndBack,
dynamic.stencil_write_mask);
}
if (dynamic.stencil_reference != current_dynamic.stencil_reference || is_dirty) {
cmdbuf.setStencilReference(vk::StencilFaceFlagBits::eFrontAndBack,
dynamic.stencil_reference);
}
if (dynamic.blend_color != current_dynamic.blend_color || is_dirty) {
const Common::Vec4f color = PicaToVK::ColorRGBA8(dynamic.blend_color);
cmdbuf.setBlendConstants(color.AsArray());
}
if (instance.IsExtendedDynamicStateSupported()) {
if (rasterization.cull_mode != current_rasterization.cull_mode || is_dirty) {
cmdbuf.setCullModeEXT(PicaToVK::CullMode(rasterization.cull_mode));
cmdbuf.setFrontFaceEXT(PicaToVK::FrontFace(rasterization.cull_mode));
}
if (depth_stencil.depth_compare_op != current_depth_stencil.depth_compare_op ||
is_dirty) {
cmdbuf.setDepthCompareOpEXT(PicaToVK::CompareFunc(depth_stencil.depth_compare_op));
}
if (depth_stencil.depth_test_enable != current_depth_stencil.depth_test_enable ||
is_dirty) {
cmdbuf.setDepthTestEnableEXT(depth_stencil.depth_test_enable);
}
if (depth_stencil.depth_write_enable != current_depth_stencil.depth_write_enable ||
is_dirty) {
cmdbuf.setDepthWriteEnableEXT(depth_stencil.depth_write_enable);
}
if (rasterization.topology != current_rasterization.topology || is_dirty) {
cmdbuf.setPrimitiveTopologyEXT(PicaToVK::PrimitiveTopology(rasterization.topology));
}
if (depth_stencil.stencil_test_enable != current_depth_stencil.stencil_test_enable ||
is_dirty) {
cmdbuf.setStencilTestEnableEXT(depth_stencil.stencil_test_enable);
}
if (depth_stencil.stencil_fail_op != current_depth_stencil.stencil_fail_op ||
depth_stencil.stencil_pass_op != current_depth_stencil.stencil_pass_op ||
depth_stencil.stencil_depth_fail_op !=
current_depth_stencil.stencil_depth_fail_op ||
depth_stencil.stencil_compare_op != current_depth_stencil.stencil_compare_op ||
is_dirty) {
cmdbuf.setStencilOpEXT(vk::StencilFaceFlagBits::eFrontAndBack,
PicaToVK::StencilOp(depth_stencil.stencil_fail_op),
PicaToVK::StencilOp(depth_stencil.stencil_pass_op),
PicaToVK::StencilOp(depth_stencil.stencil_depth_fail_op),
PicaToVK::CompareFunc(depth_stencil.stencil_compare_op));
}
}
if (pipeline_dirty) {
if (!pipeline->IsDone()) {
pipeline->WaitDone();
}
cmdbuf.bindPipeline(vk::PipelineBindPoint::eGraphics, pipeline->Handle());
}
if (descriptor_sets.size()) {
cmdbuf.bindDescriptorSets(vk::PipelineBindPoint::eGraphics, *pipeline_layout,
new_descriptors_start, descriptor_sets, offsets);
}
});
current_info = info;
current_pipeline = pipeline;
scheduler.MarkStateNonDirty(StateFlags::Pipeline | StateFlags::DescriptorSets);
return true;
}
bool PipelineCache::UseProgrammableVertexShader(const Pica::RegsInternal& regs,
Pica::ShaderSetup& setup,
const VertexLayout& layout) {
// Enable the geometry-shader only if we are actually doing per-fragment lighting
// and care about proper quaternions. Otherwise just use standard vertex+fragment shaders.
// We also don't need the geometry shader if we have the barycentric extension.
const bool use_geometry_shader = instance.UseGeometryShaders() && !regs.lighting.disable &&
!instance.IsFragmentShaderBarycentricSupported();
PicaVSConfig config{regs, setup, instance.IsShaderClipDistanceSupported(), use_geometry_shader};
for (u32 i = 0; i < layout.attribute_count; i++) {
const VertexAttribute& attr = layout.attributes[i];
const FormatTraits& traits = instance.GetTraits(attr.type, attr.size);
const u32 location = attr.location.Value();
AttribLoadFlags& flags = config.state.load_flags[location];
if (traits.needs_conversion) {
flags = MakeAttribLoadFlag(attr.type);
}
if (traits.needs_emulation) {
flags |= AttribLoadFlags::ZeroW;
}
}
auto [it, new_config] = programmable_vertex_map.try_emplace(config);
if (new_config) {
auto program = GLSL::GenerateVertexShader(setup, config, true);
if (program.empty()) {
LOG_ERROR(Render_Vulkan, "Failed to retrieve programmable vertex shader");
programmable_vertex_map[config] = nullptr;
return false;
}
auto [iter, new_program] = programmable_vertex_cache.try_emplace(program, instance);
auto& shader = iter->second;
if (new_program) {
shader.program = std::move(program);
const vk::Device device = instance.GetDevice();
workers.QueueWork([device, &shader] {
shader.module = Compile(shader.program, vk::ShaderStageFlagBits::eVertex, device);
shader.MarkDone();
});
}
it->second = &shader;
}
Shader* const shader{it->second};
if (!shader) {
LOG_ERROR(Render_Vulkan, "Failed to retrieve programmable vertex shader");
return false;
}
current_shaders[ProgramType::VS] = shader;
shader_hashes[ProgramType::VS] = config.Hash();
return true;
}
void PipelineCache::UseTrivialVertexShader() {
current_shaders[ProgramType::VS] = &trivial_vertex_shader;
shader_hashes[ProgramType::VS] = 0;
}
bool PipelineCache::UseFixedGeometryShader(const Pica::RegsInternal& regs) {
if (!instance.UseGeometryShaders()) {
UseTrivialGeometryShader();
return true;
}
const PicaFixedGSConfig gs_config{regs, instance.IsShaderClipDistanceSupported()};
auto [it, new_shader] = fixed_geometry_shaders.try_emplace(gs_config, instance);
auto& shader = it->second;
if (new_shader) {
workers.QueueWork([gs_config, device = instance.GetDevice(), &shader]() {
const auto code = GLSL::GenerateFixedGeometryShader(gs_config, true);
shader.module = Compile(code, vk::ShaderStageFlagBits::eGeometry, device);
shader.MarkDone();
});
}
current_shaders[ProgramType::GS] = &shader;
shader_hashes[ProgramType::GS] = gs_config.Hash();
return true;
}
void PipelineCache::UseTrivialGeometryShader() {
current_shaders[ProgramType::GS] = nullptr;
shader_hashes[ProgramType::GS] = 0;
}
void PipelineCache::UseFragmentShader(const Pica::RegsInternal& regs,
const Pica::Shader::UserConfig& user) {
const FSConfig fs_config{regs, user, profile};
const auto [it, new_shader] = fragment_shaders.try_emplace(fs_config, instance);
auto& shader = it->second;
if (new_shader) {
workers.QueueWork([fs_config, this, &shader]() {
const bool use_spirv = Settings::values.spirv_shader_gen.GetValue();
if (use_spirv && !fs_config.UsesShadowPipeline()) {
const std::vector code = SPIRV::GenerateFragmentShader(fs_config, profile);
shader.module = CompileSPV(code, instance.GetDevice());
} else {
const std::string code = GLSL::GenerateFragmentShader(fs_config, profile);
shader.module =
Compile(code, vk::ShaderStageFlagBits::eFragment, instance.GetDevice());
}
shader.MarkDone();
});
}
current_shaders[ProgramType::FS] = &shader;
shader_hashes[ProgramType::FS] = fs_config.Hash();
}
void PipelineCache::BindTexture(u32 binding, vk::ImageView image_view, vk::Sampler sampler) {
auto& info = update_data[1][binding].image_info;
if (info.imageView == image_view && info.sampler == sampler) {
return;
}
set_dirty[1] = true;
info = vk::DescriptorImageInfo{
.sampler = sampler,
.imageView = image_view,
.imageLayout = vk::ImageLayout::eGeneral,
};
}
void PipelineCache::BindStorageImage(u32 binding, vk::ImageView image_view) {
auto& info = update_data[2][binding].image_info;
if (info.imageView == image_view) {
return;
}
set_dirty[2] = true;
info = vk::DescriptorImageInfo{
.imageView = image_view,
.imageLayout = vk::ImageLayout::eGeneral,
};
}
void PipelineCache::BindBuffer(u32 binding, vk::Buffer buffer, u32 offset, u32 size) {
auto& info = update_data[0][binding].buffer_info;
if (info.buffer == buffer && info.offset == offset && info.range == size) {
return;
}
set_dirty[0] = true;
info = vk::DescriptorBufferInfo{
.buffer = buffer,
.offset = offset,
.range = size,
};
}
void PipelineCache::BindTexelBuffer(u32 binding, vk::BufferView buffer_view) {
auto& view = update_data[0][binding].buffer_view;
if (view != buffer_view) {
set_dirty[0] = true;
view = buffer_view;
}
}
void PipelineCache::SetBufferOffset(u32 binding, std::size_t offset) {
if (offsets[binding] != static_cast<u32>(offset)) {
offsets[binding] = static_cast<u32>(offset);
set_dirty[0] = true;
}
}
bool PipelineCache::IsCacheValid(std::span<const u8> data) const {
if (data.size() < sizeof(vk::PipelineCacheHeaderVersionOne)) {
LOG_ERROR(Render_Vulkan, "Pipeline cache failed validation: Invalid header");
return false;
}
vk::PipelineCacheHeaderVersionOne header;
std::memcpy(&header, data.data(), sizeof(header));
if (header.headerSize < sizeof(header)) {
LOG_ERROR(Render_Vulkan, "Pipeline cache failed validation: Invalid header length");
return false;
}
if (header.headerVersion != vk::PipelineCacheHeaderVersion::eOne) {
LOG_ERROR(Render_Vulkan, "Pipeline cache failed validation: Invalid header version");
return false;
}
if (u32 vendor_id = instance.GetVendorID(); header.vendorID != vendor_id) {
LOG_ERROR(
Render_Vulkan,
"Pipeline cache failed validation: Incorrect vendor ID (file: {:#X}, device: {:#X})",
header.vendorID, vendor_id);
return false;
}
if (u32 device_id = instance.GetDeviceID(); header.deviceID != device_id) {
LOG_ERROR(
Render_Vulkan,
"Pipeline cache failed validation: Incorrect device ID (file: {:#X}, device: {:#X})",
header.deviceID, device_id);
return false;
}
if (header.pipelineCacheUUID != instance.GetPipelineCacheUUID()) {
LOG_ERROR(Render_Vulkan, "Pipeline cache failed validation: Incorrect UUID");
return false;
}
return true;
}
bool PipelineCache::EnsureDirectories() const {
const auto create_dir = [](const std::string& dir) {
if (!FileUtil::CreateDir(dir)) {
LOG_ERROR(Render_Vulkan, "Failed to create directory={}", dir);
return false;
}
return true;
};
return create_dir(FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir)) &&
create_dir(GetPipelineCacheDir());
}
std::string PipelineCache::GetPipelineCacheDir() const {
return FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir) + "vulkan" + DIR_SEP;
}
} // namespace Vulkan
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