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wgpu/wgpu-hal/src/vulkan/adapter.rs

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use alloc::{borrow::ToOwned as _, boxed::Box, collections::BTreeMap, sync::Arc, vec::Vec};
use core::{ffi::CStr, marker::PhantomData};
use ash::{ext, google, khr, vk};
use parking_lot::Mutex;
use super::conv;
fn depth_stencil_required_flags() -> vk::FormatFeatureFlags {
vk::FormatFeatureFlags::SAMPLED_IMAGE | vk::FormatFeatureFlags::DEPTH_STENCIL_ATTACHMENT
}
const INDEXING_FEATURES: wgt::Features = wgt::Features::TEXTURE_BINDING_ARRAY
.union(wgt::Features::BUFFER_BINDING_ARRAY)
.union(wgt::Features::STORAGE_RESOURCE_BINDING_ARRAY)
.union(wgt::Features::SAMPLED_TEXTURE_AND_STORAGE_BUFFER_ARRAY_NON_UNIFORM_INDEXING)
.union(wgt::Features::STORAGE_TEXTURE_ARRAY_NON_UNIFORM_INDEXING)
.union(wgt::Features::UNIFORM_BUFFER_BINDING_ARRAYS)
.union(wgt::Features::PARTIALLY_BOUND_BINDING_ARRAY);
#[expect(rustdoc::private_intra_doc_links)]
/// Features supported by a [`vk::PhysicalDevice`] and its extensions.
///
/// This is used in two phases:
///
/// - When enumerating adapters, this represents the features offered by the
/// adapter. [`Instance::expose_adapter`] calls `vkGetPhysicalDeviceFeatures2`
/// (or `vkGetPhysicalDeviceFeatures` if that is not available) to collect
/// this information about the `VkPhysicalDevice` represented by the
/// `wgpu_hal::ExposedAdapter`.
///
/// - When opening a device, this represents the features we would like to
/// enable. At `wgpu_hal::Device` construction time,
/// [`PhysicalDeviceFeatures::from_extensions_and_requested_features`]
/// constructs an value of this type indicating which Vulkan features to
/// enable, based on the `wgpu_types::Features` requested.
///
/// [`Instance::expose_adapter`]: super::Instance::expose_adapter
#[derive(Debug, Default)]
pub struct PhysicalDeviceFeatures {
/// Basic Vulkan 1.0 features.
core: vk::PhysicalDeviceFeatures,
/// Features provided by `VK_EXT_descriptor_indexing`, promoted to Vulkan 1.2.
pub(super) descriptor_indexing:
Option<vk::PhysicalDeviceDescriptorIndexingFeaturesEXT<'static>>,
/// Features provided by `VK_KHR_timeline_semaphore`, promoted to Vulkan 1.2
timeline_semaphore: Option<vk::PhysicalDeviceTimelineSemaphoreFeaturesKHR<'static>>,
/// Features provided by `VK_EXT_image_robustness`, promoted to Vulkan 1.3
image_robustness: Option<vk::PhysicalDeviceImageRobustnessFeaturesEXT<'static>>,
/// Features provided by `VK_EXT_robustness2`.
robustness2: Option<vk::PhysicalDeviceRobustness2FeaturesEXT<'static>>,
/// Features provided by `VK_KHR_multiview`, promoted to Vulkan 1.1.
multiview: Option<vk::PhysicalDeviceMultiviewFeaturesKHR<'static>>,
/// Features provided by `VK_KHR_sampler_ycbcr_conversion`, promoted to Vulkan 1.1.
sampler_ycbcr_conversion: Option<vk::PhysicalDeviceSamplerYcbcrConversionFeatures<'static>>,
/// Features provided by `VK_EXT_texture_compression_astc_hdr`, promoted to Vulkan 1.3.
astc_hdr: Option<vk::PhysicalDeviceTextureCompressionASTCHDRFeaturesEXT<'static>>,
/// Features provided by `VK_KHR_shader_float16_int8`, promoted to Vulkan 1.2
shader_float16_int8: Option<vk::PhysicalDeviceShaderFloat16Int8Features<'static>>,
/// Features provided by `VK_KHR_16bit_storage`, promoted to Vulkan 1.1
_16bit_storage: Option<vk::PhysicalDevice16BitStorageFeatures<'static>>,
/// Features provided by `VK_KHR_acceleration_structure`.
acceleration_structure: Option<vk::PhysicalDeviceAccelerationStructureFeaturesKHR<'static>>,
/// Features provided by `VK_KHR_buffer_device_address`, promoted to Vulkan 1.2.
///
/// We only use this feature for
/// [`Features::EXPERIMENTAL_RAY_QUERY`], which requires
/// `VK_KHR_acceleration_structure`, which depends on
/// `VK_KHR_buffer_device_address`, so [`Instance::expose_adapter`] only
/// bothers to check if `VK_KHR_acceleration_structure` is available,
/// leaving this `None`.
///
/// However, we do populate this when creating a device if
/// [`Features::EXPERIMENTAL_RAY_QUERY`] is requested.
///
/// [`Instance::expose_adapter`]: super::Instance::expose_adapter
/// [`Features::EXPERIMENTAL_RAY_QUERY`]: wgt::Features::EXPERIMENTAL_RAY_QUERY
buffer_device_address: Option<vk::PhysicalDeviceBufferDeviceAddressFeaturesKHR<'static>>,
/// Features provided by `VK_KHR_ray_query`,
///
/// Vulkan requires that the feature be present if the `VK_KHR_ray_query`
/// extension is present, so [`Instance::expose_adapter`] doesn't bother retrieving
/// this from `vkGetPhysicalDeviceFeatures2`.
///
/// However, we do populate this when creating a device if ray tracing is requested.
///
/// [`Instance::expose_adapter`]: super::Instance::expose_adapter
ray_query: Option<vk::PhysicalDeviceRayQueryFeaturesKHR<'static>>,
/// Features provided by `VK_KHR_zero_initialize_workgroup_memory`, promoted
/// to Vulkan 1.3.
zero_initialize_workgroup_memory:
Option<vk::PhysicalDeviceZeroInitializeWorkgroupMemoryFeatures<'static>>,
position_fetch: Option<vk::PhysicalDeviceRayTracingPositionFetchFeaturesKHR<'static>>,
/// Features provided by `VK_KHR_shader_atomic_int64`, promoted to Vulkan 1.2.
shader_atomic_int64: Option<vk::PhysicalDeviceShaderAtomicInt64Features<'static>>,
/// Features provided by `VK_EXT_shader_image_atomic_int64`
shader_image_atomic_int64: Option<vk::PhysicalDeviceShaderImageAtomicInt64FeaturesEXT<'static>>,
/// Features provided by `VK_EXT_shader_atomic_float`.
shader_atomic_float: Option<vk::PhysicalDeviceShaderAtomicFloatFeaturesEXT<'static>>,
/// Features provided by `VK_EXT_subgroup_size_control`, promoted to Vulkan 1.3.
subgroup_size_control: Option<vk::PhysicalDeviceSubgroupSizeControlFeatures<'static>>,
/// Features proved by `VK_KHR_maintenance4`, needed for mesh shaders
maintenance4: Option<vk::PhysicalDeviceMaintenance4FeaturesKHR<'static>>,
/// Features proved by `VK_EXT_mesh_shader`
mesh_shader: Option<vk::PhysicalDeviceMeshShaderFeaturesEXT<'static>>,
/// Features provided by `VK_KHR_shader_integer_dot_product`, promoted to Vulkan 1.3.
shader_integer_dot_product:
Option<vk::PhysicalDeviceShaderIntegerDotProductFeaturesKHR<'static>>,
}
impl PhysicalDeviceFeatures {
/// Add the members of `self` into `info.enabled_features` and its `p_next` chain.
pub fn add_to_device_create<'a>(
&'a mut self,
mut info: vk::DeviceCreateInfo<'a>,
) -> vk::DeviceCreateInfo<'a> {
info = info.enabled_features(&self.core);
if let Some(ref mut feature) = self.descriptor_indexing {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.timeline_semaphore {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.image_robustness {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.robustness2 {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.multiview {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.astc_hdr {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.shader_float16_int8 {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self._16bit_storage {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.zero_initialize_workgroup_memory {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.acceleration_structure {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.buffer_device_address {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.ray_query {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.shader_atomic_int64 {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.position_fetch {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.shader_image_atomic_int64 {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.shader_atomic_float {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.subgroup_size_control {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.maintenance4 {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.mesh_shader {
info = info.push_next(feature);
}
if let Some(ref mut feature) = self.shader_integer_dot_product {
info = info.push_next(feature);
}
info
}
fn supports_storage_input_output_16(&self) -> bool {
self._16bit_storage
.as_ref()
.map(|features| features.storage_input_output16 != 0)
.unwrap_or(false)
}
/// Create a `PhysicalDeviceFeatures` that can be used to create a logical
/// device.
///
/// Return a `PhysicalDeviceFeatures` value capturing all the Vulkan
/// features needed for the given [`Features`], [`DownlevelFlags`], and
/// [`PrivateCapabilities`]. You can use the returned value's
/// [`add_to_device_create`] method to configure a
/// [`vk::DeviceCreateInfo`] to build a logical device providing those
/// features.
///
/// To ensure that the returned value is able to select all the Vulkan
/// features needed to express `requested_features`, `downlevel_flags`, and
/// `private_caps`:
///
/// - The given `enabled_extensions` set must include all the extensions
/// selected by [`Adapter::required_device_extensions`] when passed
/// `features`.
///
/// - The given `device_api_version` must be the Vulkan API version of the
/// physical device we will use to create the logical device.
///
/// [`Features`]: wgt::Features
/// [`DownlevelFlags`]: wgt::DownlevelFlags
/// [`PrivateCapabilities`]: super::PrivateCapabilities
/// [`add_to_device_create`]: PhysicalDeviceFeatures::add_to_device_create
/// [`Adapter::required_device_extensions`]: super::Adapter::required_device_extensions
fn from_extensions_and_requested_features(
phd_capabilities: &PhysicalDeviceProperties,
phd_features: &PhysicalDeviceFeatures,
enabled_extensions: &[&'static CStr],
requested_features: wgt::Features,
downlevel_flags: wgt::DownlevelFlags,
private_caps: &super::PrivateCapabilities,
) -> Self {
let device_api_version = phd_capabilities.device_api_version;
let needs_bindless = requested_features.intersects(
wgt::Features::TEXTURE_BINDING_ARRAY
| wgt::Features::BUFFER_BINDING_ARRAY
| wgt::Features::STORAGE_RESOURCE_BINDING_ARRAY
| wgt::Features::STORAGE_TEXTURE_ARRAY_NON_UNIFORM_INDEXING
| wgt::Features::SAMPLED_TEXTURE_AND_STORAGE_BUFFER_ARRAY_NON_UNIFORM_INDEXING,
);
let needs_partially_bound =
requested_features.intersects(wgt::Features::PARTIALLY_BOUND_BINDING_ARRAY);
Self {
// vk::PhysicalDeviceFeatures is a struct composed of Bool32's while
// Features is a bitfield so we need to map everything manually
core: vk::PhysicalDeviceFeatures::default()
.robust_buffer_access(private_caps.robust_buffer_access)
.independent_blend(downlevel_flags.contains(wgt::DownlevelFlags::INDEPENDENT_BLEND))
.sample_rate_shading(
downlevel_flags.contains(wgt::DownlevelFlags::MULTISAMPLED_SHADING),
)
.image_cube_array(
downlevel_flags.contains(wgt::DownlevelFlags::CUBE_ARRAY_TEXTURES),
)
.draw_indirect_first_instance(
requested_features.contains(wgt::Features::INDIRECT_FIRST_INSTANCE),
)
//.dual_src_blend(requested_features.contains(wgt::Features::DUAL_SRC_BLENDING))
.multi_draw_indirect(phd_features.core.multi_draw_indirect != 0)
.fill_mode_non_solid(requested_features.intersects(
wgt::Features::POLYGON_MODE_LINE | wgt::Features::POLYGON_MODE_POINT,
))
//.depth_bounds(requested_features.contains(wgt::Features::DEPTH_BOUNDS))
//.alpha_to_one(requested_features.contains(wgt::Features::ALPHA_TO_ONE))
//.multi_viewport(requested_features.contains(wgt::Features::MULTI_VIEWPORTS))
.sampler_anisotropy(
downlevel_flags.contains(wgt::DownlevelFlags::ANISOTROPIC_FILTERING),
)
.texture_compression_etc2(
requested_features.contains(wgt::Features::TEXTURE_COMPRESSION_ETC2),
)
.texture_compression_astc_ldr(
requested_features.contains(wgt::Features::TEXTURE_COMPRESSION_ASTC),
)
.texture_compression_bc(
requested_features.contains(wgt::Features::TEXTURE_COMPRESSION_BC),
// BC provides formats for Sliced 3D
)
//.occlusion_query_precise(requested_features.contains(wgt::Features::PRECISE_OCCLUSION_QUERY))
.pipeline_statistics_query(
requested_features.contains(wgt::Features::PIPELINE_STATISTICS_QUERY),
)
.vertex_pipeline_stores_and_atomics(
requested_features.contains(wgt::Features::VERTEX_WRITABLE_STORAGE),
)
.fragment_stores_and_atomics(
downlevel_flags.contains(wgt::DownlevelFlags::FRAGMENT_WRITABLE_STORAGE),
)
//.shader_image_gather_extended(
//.shader_storage_image_extended_formats(
.shader_uniform_buffer_array_dynamic_indexing(
requested_features.contains(wgt::Features::BUFFER_BINDING_ARRAY),
)
.shader_storage_buffer_array_dynamic_indexing(requested_features.contains(
wgt::Features::BUFFER_BINDING_ARRAY
| wgt::Features::STORAGE_RESOURCE_BINDING_ARRAY,
))
.shader_sampled_image_array_dynamic_indexing(
requested_features.contains(wgt::Features::TEXTURE_BINDING_ARRAY),
)
.shader_storage_buffer_array_dynamic_indexing(requested_features.contains(
wgt::Features::TEXTURE_BINDING_ARRAY
| wgt::Features::STORAGE_RESOURCE_BINDING_ARRAY,
))
//.shader_storage_image_array_dynamic_indexing(
.shader_clip_distance(requested_features.contains(wgt::Features::CLIP_DISTANCES))
//.shader_cull_distance(requested_features.contains(wgt::Features::SHADER_CULL_DISTANCE))
.shader_float64(requested_features.contains(wgt::Features::SHADER_F64))
.shader_int64(requested_features.contains(wgt::Features::SHADER_INT64))
.shader_int16(requested_features.contains(wgt::Features::SHADER_I16))
//.shader_resource_residency(requested_features.contains(wgt::Features::SHADER_RESOURCE_RESIDENCY))
.geometry_shader(requested_features.contains(wgt::Features::SHADER_PRIMITIVE_INDEX))
.depth_clamp(requested_features.contains(wgt::Features::DEPTH_CLIP_CONTROL))
.dual_src_blend(requested_features.contains(wgt::Features::DUAL_SOURCE_BLENDING)),
descriptor_indexing: if requested_features.intersects(INDEXING_FEATURES) {
Some(
vk::PhysicalDeviceDescriptorIndexingFeaturesEXT::default()
.shader_sampled_image_array_non_uniform_indexing(needs_bindless)
.shader_storage_image_array_non_uniform_indexing(needs_bindless)
.shader_storage_buffer_array_non_uniform_indexing(needs_bindless)
.descriptor_binding_sampled_image_update_after_bind(needs_bindless)
.descriptor_binding_storage_image_update_after_bind(needs_bindless)
.descriptor_binding_storage_buffer_update_after_bind(needs_bindless)
.descriptor_binding_partially_bound(needs_partially_bound),
)
} else {
None
},
timeline_semaphore: if device_api_version >= vk::API_VERSION_1_2
|| enabled_extensions.contains(&khr::timeline_semaphore::NAME)
{
Some(
vk::PhysicalDeviceTimelineSemaphoreFeaturesKHR::default()
.timeline_semaphore(private_caps.timeline_semaphores),
)
} else {
None
},
image_robustness: if device_api_version >= vk::API_VERSION_1_3
|| enabled_extensions.contains(&ext::image_robustness::NAME)
{
Some(
vk::PhysicalDeviceImageRobustnessFeaturesEXT::default()
.robust_image_access(private_caps.robust_image_access),
)
} else {
None
},
robustness2: if enabled_extensions.contains(&ext::robustness2::NAME) {
Some(
vk::PhysicalDeviceRobustness2FeaturesEXT::default()
.robust_buffer_access2(private_caps.robust_buffer_access2)
.robust_image_access2(private_caps.robust_image_access2),
)
} else {
None
},
multiview: if device_api_version >= vk::API_VERSION_1_1
|| enabled_extensions.contains(&khr::multiview::NAME)
{
Some(
vk::PhysicalDeviceMultiviewFeatures::default()
.multiview(requested_features.contains(wgt::Features::MULTIVIEW)),
)
} else {
None
},
sampler_ycbcr_conversion: if device_api_version >= vk::API_VERSION_1_1
|| enabled_extensions.contains(&khr::sampler_ycbcr_conversion::NAME)
{
Some(
vk::PhysicalDeviceSamplerYcbcrConversionFeatures::default(), // .sampler_ycbcr_conversion(requested_features.contains(wgt::Features::TEXTURE_FORMAT_NV12))
)
} else {
None
},
astc_hdr: if enabled_extensions.contains(&ext::texture_compression_astc_hdr::NAME) {
Some(
vk::PhysicalDeviceTextureCompressionASTCHDRFeaturesEXT::default()
.texture_compression_astc_hdr(true),
)
} else {
None
},
shader_float16_int8: match requested_features.contains(wgt::Features::SHADER_F16) {
shader_float16 if shader_float16 || private_caps.shader_int8 => Some(
vk::PhysicalDeviceShaderFloat16Int8Features::default()
.shader_float16(shader_float16)
.shader_int8(private_caps.shader_int8),
),
_ => None,
},
_16bit_storage: if requested_features.contains(wgt::Features::SHADER_F16) {
Some(
vk::PhysicalDevice16BitStorageFeatures::default()
.storage_buffer16_bit_access(true)
.storage_input_output16(phd_features.supports_storage_input_output_16())
.uniform_and_storage_buffer16_bit_access(true),
)
} else {
None
},
acceleration_structure: if enabled_extensions
.contains(&khr::acceleration_structure::NAME)
{
Some(
vk::PhysicalDeviceAccelerationStructureFeaturesKHR::default()
.acceleration_structure(true),
)
} else {
None
},
buffer_device_address: if enabled_extensions.contains(&khr::buffer_device_address::NAME)
{
Some(
vk::PhysicalDeviceBufferDeviceAddressFeaturesKHR::default()
.buffer_device_address(true),
)
} else {
None
},
ray_query: if enabled_extensions.contains(&khr::ray_query::NAME) {
Some(vk::PhysicalDeviceRayQueryFeaturesKHR::default().ray_query(true))
} else {
None
},
zero_initialize_workgroup_memory: if device_api_version >= vk::API_VERSION_1_3
|| enabled_extensions.contains(&khr::zero_initialize_workgroup_memory::NAME)
{
Some(
vk::PhysicalDeviceZeroInitializeWorkgroupMemoryFeatures::default()
.shader_zero_initialize_workgroup_memory(
private_caps.zero_initialize_workgroup_memory,
),
)
} else {
None
},
shader_atomic_int64: if device_api_version >= vk::API_VERSION_1_2
|| enabled_extensions.contains(&khr::shader_atomic_int64::NAME)
{
let needed = requested_features.intersects(
wgt::Features::SHADER_INT64_ATOMIC_ALL_OPS
| wgt::Features::SHADER_INT64_ATOMIC_MIN_MAX,
);
Some(
vk::PhysicalDeviceShaderAtomicInt64Features::default()
.shader_buffer_int64_atomics(needed)
.shader_shared_int64_atomics(needed),
)
} else {
None
},
shader_image_atomic_int64: if enabled_extensions
.contains(&ext::shader_image_atomic_int64::NAME)
{
let needed = requested_features.intersects(wgt::Features::TEXTURE_INT64_ATOMIC);
Some(
vk::PhysicalDeviceShaderImageAtomicInt64FeaturesEXT::default()
.shader_image_int64_atomics(needed),
)
} else {
None
},
shader_atomic_float: if enabled_extensions.contains(&ext::shader_atomic_float::NAME) {
let needed = requested_features.contains(wgt::Features::SHADER_FLOAT32_ATOMIC);
Some(
vk::PhysicalDeviceShaderAtomicFloatFeaturesEXT::default()
.shader_buffer_float32_atomics(needed)
.shader_buffer_float32_atomic_add(needed),
)
} else {
None
},
subgroup_size_control: if device_api_version >= vk::API_VERSION_1_3
|| enabled_extensions.contains(&ext::subgroup_size_control::NAME)
{
Some(
vk::PhysicalDeviceSubgroupSizeControlFeatures::default()
.subgroup_size_control(true),
)
} else {
None
},
position_fetch: if enabled_extensions.contains(&khr::ray_tracing_position_fetch::NAME) {
Some(
vk::PhysicalDeviceRayTracingPositionFetchFeaturesKHR::default()
.ray_tracing_position_fetch(true),
)
} else {
None
},
mesh_shader: if enabled_extensions.contains(&ext::mesh_shader::NAME) {
let needed = requested_features.contains(wgt::Features::EXPERIMENTAL_MESH_SHADER);
let multiview_needed =
requested_features.contains(wgt::Features::EXPERIMENTAL_MESH_SHADER_MULTIVIEW);
Some(
vk::PhysicalDeviceMeshShaderFeaturesEXT::default()
.mesh_shader(needed)
.task_shader(needed)
.multiview_mesh_shader(multiview_needed),
)
} else {
None
},
maintenance4: if enabled_extensions.contains(&khr::maintenance4::NAME) {
let needed = requested_features.contains(wgt::Features::EXPERIMENTAL_MESH_SHADER);
Some(vk::PhysicalDeviceMaintenance4FeaturesKHR::default().maintenance4(needed))
} else {
None
},
shader_integer_dot_product: if device_api_version >= vk::API_VERSION_1_3
|| enabled_extensions.contains(&khr::shader_integer_dot_product::NAME)
{
Some(
vk::PhysicalDeviceShaderIntegerDotProductFeaturesKHR::default()
.shader_integer_dot_product(private_caps.shader_integer_dot_product),
)
} else {
None
},
}
}
/// Compute the wgpu [`Features`] and [`DownlevelFlags`] supported by a physical device.
///
/// Given `self`, together with the instance and physical device it was
/// built from, and a `caps` also built from those, determine which wgpu
/// features and downlevel flags the device can support.
///
/// [`Features`]: wgt::Features
/// [`DownlevelFlags`]: wgt::DownlevelFlags
fn to_wgpu(
&self,
instance: &ash::Instance,
phd: vk::PhysicalDevice,
caps: &PhysicalDeviceProperties,
) -> (wgt::Features, wgt::DownlevelFlags) {
use wgt::{DownlevelFlags as Df, Features as F};
let mut features = F::empty()
| F::MAPPABLE_PRIMARY_BUFFERS
| F::PUSH_CONSTANTS
| F::ADDRESS_MODE_CLAMP_TO_BORDER
| F::ADDRESS_MODE_CLAMP_TO_ZERO
| F::TIMESTAMP_QUERY
| F::TIMESTAMP_QUERY_INSIDE_ENCODERS
| F::TIMESTAMP_QUERY_INSIDE_PASSES
| F::TEXTURE_ADAPTER_SPECIFIC_FORMAT_FEATURES
| F::CLEAR_TEXTURE
| F::PIPELINE_CACHE
| F::SHADER_EARLY_DEPTH_TEST
| F::TEXTURE_ATOMIC
| F::EXPERIMENTAL_PASSTHROUGH_SHADERS;
let mut dl_flags = Df::COMPUTE_SHADERS
| Df::BASE_VERTEX
| Df::READ_ONLY_DEPTH_STENCIL
| Df::NON_POWER_OF_TWO_MIPMAPPED_TEXTURES
| Df::COMPARISON_SAMPLERS
| Df::VERTEX_STORAGE
| Df::FRAGMENT_STORAGE
| Df::DEPTH_TEXTURE_AND_BUFFER_COPIES
| Df::BUFFER_BINDINGS_NOT_16_BYTE_ALIGNED
| Df::UNRESTRICTED_INDEX_BUFFER
| Df::INDIRECT_EXECUTION
| Df::VIEW_FORMATS
| Df::UNRESTRICTED_EXTERNAL_TEXTURE_COPIES
| Df::NONBLOCKING_QUERY_RESOLVE
| Df::SHADER_F16_IN_F32;
dl_flags.set(
Df::SURFACE_VIEW_FORMATS,
caps.supports_extension(khr::swapchain_mutable_format::NAME),
);
dl_flags.set(Df::CUBE_ARRAY_TEXTURES, self.core.image_cube_array != 0);
dl_flags.set(Df::ANISOTROPIC_FILTERING, self.core.sampler_anisotropy != 0);
dl_flags.set(
Df::FRAGMENT_WRITABLE_STORAGE,
self.core.fragment_stores_and_atomics != 0,
);
dl_flags.set(Df::MULTISAMPLED_SHADING, self.core.sample_rate_shading != 0);
dl_flags.set(Df::INDEPENDENT_BLEND, self.core.independent_blend != 0);
dl_flags.set(
Df::FULL_DRAW_INDEX_UINT32,
self.core.full_draw_index_uint32 != 0,
);
dl_flags.set(Df::DEPTH_BIAS_CLAMP, self.core.depth_bias_clamp != 0);
features.set(
F::INDIRECT_FIRST_INSTANCE,
self.core.draw_indirect_first_instance != 0,
);
//if self.core.dual_src_blend != 0
features.set(F::POLYGON_MODE_LINE, self.core.fill_mode_non_solid != 0);
features.set(F::POLYGON_MODE_POINT, self.core.fill_mode_non_solid != 0);
//if self.core.depth_bounds != 0 {
//if self.core.alpha_to_one != 0 {
//if self.core.multi_viewport != 0 {
features.set(
F::TEXTURE_COMPRESSION_ETC2,
self.core.texture_compression_etc2 != 0,
);
features.set(
F::TEXTURE_COMPRESSION_ASTC,
self.core.texture_compression_astc_ldr != 0,
);
features.set(
F::TEXTURE_COMPRESSION_BC,
self.core.texture_compression_bc != 0,
);
features.set(
F::TEXTURE_COMPRESSION_BC_SLICED_3D,
self.core.texture_compression_bc != 0, // BC guarantees Sliced 3D
);
features.set(
F::PIPELINE_STATISTICS_QUERY,
self.core.pipeline_statistics_query != 0,
);
features.set(
F::VERTEX_WRITABLE_STORAGE,
self.core.vertex_pipeline_stores_and_atomics != 0,
);
features.set(F::SHADER_F64, self.core.shader_float64 != 0);
features.set(F::SHADER_INT64, self.core.shader_int64 != 0);
features.set(F::SHADER_I16, self.core.shader_int16 != 0);
features.set(F::SHADER_PRIMITIVE_INDEX, self.core.geometry_shader != 0);
if let Some(ref shader_atomic_int64) = self.shader_atomic_int64 {
features.set(
F::SHADER_INT64_ATOMIC_ALL_OPS | F::SHADER_INT64_ATOMIC_MIN_MAX,
shader_atomic_int64.shader_buffer_int64_atomics != 0
&& shader_atomic_int64.shader_shared_int64_atomics != 0,
);
}
if let Some(ref shader_image_atomic_int64) = self.shader_image_atomic_int64 {
features.set(
F::TEXTURE_INT64_ATOMIC,
shader_image_atomic_int64
.shader_image_int64_atomics(true)
.shader_image_int64_atomics
!= 0,
);
}
if let Some(ref shader_atomic_float) = self.shader_atomic_float {
features.set(
F::SHADER_FLOAT32_ATOMIC,
shader_atomic_float.shader_buffer_float32_atomics != 0
&& shader_atomic_float.shader_buffer_float32_atomic_add != 0,
);
}
//if caps.supports_extension(khr::sampler_mirror_clamp_to_edge::NAME) {
//if caps.supports_extension(ext::sampler_filter_minmax::NAME) {
features.set(
F::MULTI_DRAW_INDIRECT_COUNT,
caps.supports_extension(khr::draw_indirect_count::NAME),
);
features.set(
F::CONSERVATIVE_RASTERIZATION,
caps.supports_extension(ext::conservative_rasterization::NAME),
);
features.set(
F::EXPERIMENTAL_RAY_HIT_VERTEX_RETURN,
caps.supports_extension(khr::ray_tracing_position_fetch::NAME),
);
if let Some(ref descriptor_indexing) = self.descriptor_indexing {
// We use update-after-bind descriptors for all bind groups containing binding arrays.
//
// In those bind groups, we allow all binding types except uniform buffers to be present.
//
// As we can only switch between update-after-bind and not on a per bind group basis,
// all supported binding types need to be able to be marked update after bind.
//
// As such, we enable all features as a whole, rather individually.
let supports_descriptor_indexing =
// Sampled Images
descriptor_indexing.shader_sampled_image_array_non_uniform_indexing != 0
&& descriptor_indexing.descriptor_binding_sampled_image_update_after_bind != 0
// Storage Images
&& descriptor_indexing.shader_storage_image_array_non_uniform_indexing != 0
&& descriptor_indexing.descriptor_binding_storage_image_update_after_bind != 0
// Storage Buffers
&& descriptor_indexing.shader_storage_buffer_array_non_uniform_indexing != 0
&& descriptor_indexing.descriptor_binding_storage_buffer_update_after_bind != 0;
let descriptor_indexing_features = F::BUFFER_BINDING_ARRAY
| F::TEXTURE_BINDING_ARRAY
| F::STORAGE_RESOURCE_BINDING_ARRAY
| F::SAMPLED_TEXTURE_AND_STORAGE_BUFFER_ARRAY_NON_UNIFORM_INDEXING
| F::STORAGE_TEXTURE_ARRAY_NON_UNIFORM_INDEXING;
features.set(descriptor_indexing_features, supports_descriptor_indexing);
let supports_partially_bound =
descriptor_indexing.descriptor_binding_partially_bound != 0;
features.set(F::PARTIALLY_BOUND_BINDING_ARRAY, supports_partially_bound);
}
features.set(F::DEPTH_CLIP_CONTROL, self.core.depth_clamp != 0);
features.set(F::DUAL_SOURCE_BLENDING, self.core.dual_src_blend != 0);
features.set(F::CLIP_DISTANCES, self.core.shader_clip_distance != 0);
if let Some(ref multiview) = self.multiview {
features.set(F::MULTIVIEW, multiview.multiview != 0);
}
features.set(
F::TEXTURE_FORMAT_16BIT_NORM,
is_format_16bit_norm_supported(instance, phd),
);
if let Some(ref astc_hdr) = self.astc_hdr {
features.set(
F::TEXTURE_COMPRESSION_ASTC_HDR,
astc_hdr.texture_compression_astc_hdr != 0,
);
}
if self.core.texture_compression_astc_ldr != 0 {
features.set(
F::TEXTURE_COMPRESSION_ASTC_SLICED_3D,
supports_astc_3d(instance, phd),
);
}
if let (Some(ref f16_i8), Some(ref bit16)) = (self.shader_float16_int8, self._16bit_storage)
{
// Note `storage_input_output16` is not required, we polyfill `f16` I/O using `f32`
// types when this capability is not available
features.set(
F::SHADER_F16,
f16_i8.shader_float16 != 0
&& bit16.storage_buffer16_bit_access != 0
&& bit16.uniform_and_storage_buffer16_bit_access != 0,
);
}
if let Some(ref subgroup) = caps.subgroup {
if (caps.device_api_version >= vk::API_VERSION_1_3
|| caps.supports_extension(ext::subgroup_size_control::NAME))
&& subgroup.supported_operations.contains(
vk::SubgroupFeatureFlags::BASIC
| vk::SubgroupFeatureFlags::VOTE
| vk::SubgroupFeatureFlags::ARITHMETIC
| vk::SubgroupFeatureFlags::BALLOT
| vk::SubgroupFeatureFlags::SHUFFLE
| vk::SubgroupFeatureFlags::SHUFFLE_RELATIVE
| vk::SubgroupFeatureFlags::QUAD,
)
{
features.set(
F::SUBGROUP,
subgroup
.supported_stages
.contains(vk::ShaderStageFlags::COMPUTE | vk::ShaderStageFlags::FRAGMENT),
);
features.set(
F::SUBGROUP_VERTEX,
subgroup
.supported_stages
.contains(vk::ShaderStageFlags::VERTEX),
);
features.insert(F::SUBGROUP_BARRIER);
}
}
let supports_depth_format = |format| {
supports_format(
instance,
phd,
format,
vk::ImageTiling::OPTIMAL,
depth_stencil_required_flags(),
)
};
let texture_s8 = supports_depth_format(vk::Format::S8_UINT);
let texture_d32 = supports_depth_format(vk::Format::D32_SFLOAT);
let texture_d24_s8 = supports_depth_format(vk::Format::D24_UNORM_S8_UINT);
let texture_d32_s8 = supports_depth_format(vk::Format::D32_SFLOAT_S8_UINT);
let stencil8 = texture_s8 || texture_d24_s8;
let depth24_plus_stencil8 = texture_d24_s8 || texture_d32_s8;
dl_flags.set(
Df::WEBGPU_TEXTURE_FORMAT_SUPPORT,
stencil8 && depth24_plus_stencil8 && texture_d32,
);
features.set(F::DEPTH32FLOAT_STENCIL8, texture_d32_s8);
let supports_acceleration_structures = caps
.supports_extension(khr::deferred_host_operations::NAME)
&& caps.supports_extension(khr::acceleration_structure::NAME)
&& caps.supports_extension(khr::buffer_device_address::NAME);
features.set(
F::EXPERIMENTAL_RAY_QUERY
// Although this doesn't really require ray queries, it does not make sense to be enabled if acceleration structures
// aren't enabled.
| F::EXTENDED_ACCELERATION_STRUCTURE_VERTEX_FORMATS,
supports_acceleration_structures && caps.supports_extension(khr::ray_query::NAME),
);
let rg11b10ufloat_renderable = supports_format(
instance,
phd,
vk::Format::B10G11R11_UFLOAT_PACK32,
vk::ImageTiling::OPTIMAL,
vk::FormatFeatureFlags::COLOR_ATTACHMENT
| vk::FormatFeatureFlags::COLOR_ATTACHMENT_BLEND,
);
features.set(F::RG11B10UFLOAT_RENDERABLE, rg11b10ufloat_renderable);
features.set(
F::BGRA8UNORM_STORAGE,
supports_bgra8unorm_storage(instance, phd, caps.device_api_version),
);
features.set(
F::FLOAT32_FILTERABLE,
is_float32_filterable_supported(instance, phd),
);
if let Some(ref _sampler_ycbcr_conversion) = self.sampler_ycbcr_conversion {
features.set(
F::TEXTURE_FORMAT_NV12,
supports_format(
instance,
phd,
vk::Format::G8_B8R8_2PLANE_420_UNORM,
vk::ImageTiling::OPTIMAL,
vk::FormatFeatureFlags::SAMPLED_IMAGE
| vk::FormatFeatureFlags::TRANSFER_SRC
| vk::FormatFeatureFlags::TRANSFER_DST,
) && !caps
.driver
.map(|driver| driver.driver_id == vk::DriverId::MOLTENVK)
.unwrap_or_default(),
);
}
if let Some(ref _sampler_ycbcr_conversion) = self.sampler_ycbcr_conversion {
features.set(
F::TEXTURE_FORMAT_P010,
supports_format(
instance,
phd,
vk::Format::G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16,
vk::ImageTiling::OPTIMAL,
vk::FormatFeatureFlags::SAMPLED_IMAGE
| vk::FormatFeatureFlags::TRANSFER_SRC
| vk::FormatFeatureFlags::TRANSFER_DST,
) && !caps
.driver
.map(|driver| driver.driver_id == vk::DriverId::MOLTENVK)
.unwrap_or_default(),
);
}
features.set(
F::VULKAN_GOOGLE_DISPLAY_TIMING,
caps.supports_extension(google::display_timing::NAME),
);
features.set(
F::VULKAN_EXTERNAL_MEMORY_WIN32,
caps.supports_extension(khr::external_memory_win32::NAME),
);
features.set(
F::EXPERIMENTAL_MESH_SHADER,
caps.supports_extension(ext::mesh_shader::NAME),
);
if let Some(ref mesh_shader) = self.mesh_shader {
features.set(
F::EXPERIMENTAL_MESH_SHADER_MULTIVIEW,
mesh_shader.multiview_mesh_shader != 0,
);
}
(features, dl_flags)
}
}
/// Vulkan "properties" structures gathered about a physical device.
///
/// This structure holds the properties of a [`vk::PhysicalDevice`]:
/// - the standard Vulkan device properties
/// - the `VkExtensionProperties` structs for all available extensions, and
/// - the per-extension properties structures for the available extensions that
/// `wgpu` cares about.
///
/// Generally, if you get it from any of these functions, it's stored
/// here:
/// - `vkEnumerateDeviceExtensionProperties`
/// - `vkGetPhysicalDeviceProperties`
/// - `vkGetPhysicalDeviceProperties2`
///
/// This also includes a copy of the device API version, since we can
/// use that as a shortcut for searching for an extension, if the
/// extension has been promoted to core in the current version.
///
/// This does not include device features; for those, see
/// [`PhysicalDeviceFeatures`].
#[derive(Default, Debug)]
pub struct PhysicalDeviceProperties {
/// Extensions supported by the `vk::PhysicalDevice`,
/// as returned by `vkEnumerateDeviceExtensionProperties`.
supported_extensions: Vec<vk::ExtensionProperties>,
/// Properties of the `vk::PhysicalDevice`, as returned by
/// `vkGetPhysicalDeviceProperties`.
properties: vk::PhysicalDeviceProperties,
/// Additional `vk::PhysicalDevice` properties from the
/// `VK_KHR_maintenance3` extension, promoted to Vulkan 1.1.
maintenance_3: Option<vk::PhysicalDeviceMaintenance3Properties<'static>>,
/// Additional `vk::PhysicalDevice` properties from the
/// `VK_EXT_descriptor_indexing` extension, promoted to Vulkan 1.2.
descriptor_indexing: Option<vk::PhysicalDeviceDescriptorIndexingPropertiesEXT<'static>>,
/// Additional `vk::PhysicalDevice` properties from the
/// `VK_KHR_acceleration_structure` extension.
acceleration_structure: Option<vk::PhysicalDeviceAccelerationStructurePropertiesKHR<'static>>,
/// Additional `vk::PhysicalDevice` properties from the
/// `VK_KHR_driver_properties` extension, promoted to Vulkan 1.2.
driver: Option<vk::PhysicalDeviceDriverPropertiesKHR<'static>>,
/// Additional `vk::PhysicalDevice` properties from Vulkan 1.1.
subgroup: Option<vk::PhysicalDeviceSubgroupProperties<'static>>,
/// Additional `vk::PhysicalDevice` properties from the
/// `VK_EXT_subgroup_size_control` extension, promoted to Vulkan 1.3.
subgroup_size_control: Option<vk::PhysicalDeviceSubgroupSizeControlProperties<'static>>,
/// Additional `vk::PhysicalDevice` properties from the
/// `VK_EXT_robustness2` extension.
robustness2: Option<vk::PhysicalDeviceRobustness2PropertiesEXT<'static>>,
/// Additional `vk::PhysicalDevice` properties from the
/// `VK_EXT_mesh_shader` extension.
mesh_shader: Option<vk::PhysicalDeviceMeshShaderPropertiesEXT<'static>>,
/// The device API version.
///
/// Which is the version of Vulkan supported for device-level functionality.
///
/// It is associated with a `VkPhysicalDevice` and its children.
device_api_version: u32,
}
impl PhysicalDeviceProperties {
pub fn properties(&self) -> vk::PhysicalDeviceProperties {
self.properties
}
pub fn supports_extension(&self, extension: &CStr) -> bool {
self.supported_extensions
.iter()
.any(|ep| ep.extension_name_as_c_str() == Ok(extension))
}
/// Map `requested_features` to the list of Vulkan extension strings required to create the logical device.
fn get_required_extensions(&self, requested_features: wgt::Features) -> Vec<&'static CStr> {
let mut extensions = Vec::new();
// Note that quite a few extensions depend on the `VK_KHR_get_physical_device_properties2` instance extension.
// We enable `VK_KHR_get_physical_device_properties2` unconditionally (if available).
// Require `VK_KHR_swapchain`
extensions.push(khr::swapchain::NAME);
if self.device_api_version < vk::API_VERSION_1_1 {
// Require `VK_KHR_maintenance1`
extensions.push(khr::maintenance1::NAME);
// Optional `VK_KHR_maintenance2`
if self.supports_extension(khr::maintenance2::NAME) {
extensions.push(khr::maintenance2::NAME);
}
// Optional `VK_KHR_maintenance3`
if self.supports_extension(khr::maintenance3::NAME) {
extensions.push(khr::maintenance3::NAME);
}
// Require `VK_KHR_storage_buffer_storage_class`
extensions.push(khr::storage_buffer_storage_class::NAME);
// Require `VK_KHR_multiview` if the associated feature was requested
if requested_features.contains(wgt::Features::MULTIVIEW) {
extensions.push(khr::multiview::NAME);
}
// Require `VK_KHR_sampler_ycbcr_conversion` if the associated feature was requested
if requested_features.contains(wgt::Features::TEXTURE_FORMAT_NV12) {
extensions.push(khr::sampler_ycbcr_conversion::NAME);
}
// Require `VK_KHR_16bit_storage` if the feature `SHADER_F16` was requested
if requested_features.contains(wgt::Features::SHADER_F16) {
// - Feature `SHADER_F16` also requires `VK_KHR_shader_float16_int8`, but we always
// require that anyway (if it is available) below.
// - `VK_KHR_16bit_storage` requires `VK_KHR_storage_buffer_storage_class`, however
// we require that one already.
extensions.push(khr::_16bit_storage::NAME);
}
}
if self.device_api_version < vk::API_VERSION_1_2 {
// Optional `VK_KHR_image_format_list`
if self.supports_extension(khr::image_format_list::NAME) {
extensions.push(khr::image_format_list::NAME);
}
// Optional `VK_KHR_driver_properties`
if self.supports_extension(khr::driver_properties::NAME) {
extensions.push(khr::driver_properties::NAME);
}
// Optional `VK_KHR_timeline_semaphore`
if self.supports_extension(khr::timeline_semaphore::NAME) {
extensions.push(khr::timeline_semaphore::NAME);
}
// Require `VK_EXT_descriptor_indexing` if one of the associated features was requested
if requested_features.intersects(INDEXING_FEATURES) {
extensions.push(ext::descriptor_indexing::NAME);
}
// Always require `VK_KHR_shader_float16_int8` if available as it enables
// Int8 optimizations. Also require it even if it's not available but
// requested so that we get a corresponding error message.
if requested_features.contains(wgt::Features::SHADER_F16)
|| self.supports_extension(khr::shader_float16_int8::NAME)
{
extensions.push(khr::shader_float16_int8::NAME);
}
if requested_features.intersects(wgt::Features::EXPERIMENTAL_MESH_SHADER) {
extensions.push(khr::spirv_1_4::NAME);
}
//extensions.push(khr::sampler_mirror_clamp_to_edge::NAME);
//extensions.push(ext::sampler_filter_minmax::NAME);
}
if self.device_api_version < vk::API_VERSION_1_3 {
// Optional `VK_EXT_image_robustness`
if self.supports_extension(ext::image_robustness::NAME) {
extensions.push(ext::image_robustness::NAME);
}
// Require `VK_EXT_subgroup_size_control` if the associated feature was requested
if requested_features.contains(wgt::Features::SUBGROUP) {
extensions.push(ext::subgroup_size_control::NAME);
}
if requested_features.intersects(wgt::Features::EXPERIMENTAL_MESH_SHADER) {
extensions.push(khr::maintenance4::NAME);
}
// Optional `VK_KHR_shader_integer_dot_product`
if self.supports_extension(khr::shader_integer_dot_product::NAME) {
extensions.push(khr::shader_integer_dot_product::NAME);
}
}
// Optional `VK_KHR_swapchain_mutable_format`
if self.supports_extension(khr::swapchain_mutable_format::NAME) {
extensions.push(khr::swapchain_mutable_format::NAME);
}
// Optional `VK_EXT_robustness2`
if self.supports_extension(ext::robustness2::NAME) {
extensions.push(ext::robustness2::NAME);
}
// Optional `VK_KHR_external_memory_win32`
if self.supports_extension(khr::external_memory_win32::NAME) {
extensions.push(khr::external_memory_win32::NAME);
}
// Optional `VK_KHR_external_memory_fd`
if self.supports_extension(khr::external_memory_fd::NAME) {
extensions.push(khr::external_memory_fd::NAME);
}
// Optional `VK_EXT_external_memory_dma`
if self.supports_extension(ext::external_memory_dma_buf::NAME) {
extensions.push(ext::external_memory_dma_buf::NAME);
}
// Optional `VK_EXT_memory_budget`
if self.supports_extension(ext::memory_budget::NAME) {
extensions.push(ext::memory_budget::NAME);
} else {
log::warn!("VK_EXT_memory_budget is not available.")
}
// Require `VK_KHR_draw_indirect_count` if the associated feature was requested
// Even though Vulkan 1.2 has promoted the extension to core, we must require the extension to avoid
// large amounts of spaghetti involved with using PhysicalDeviceVulkan12Features.
if requested_features.contains(wgt::Features::MULTI_DRAW_INDIRECT_COUNT) {
extensions.push(khr::draw_indirect_count::NAME);
}
// Require `VK_KHR_deferred_host_operations`, `VK_KHR_acceleration_structure` `VK_KHR_buffer_device_address` (for acceleration structures) and`VK_KHR_ray_query` if `EXPERIMENTAL_RAY_QUERY` was requested
if requested_features.contains(wgt::Features::EXPERIMENTAL_RAY_QUERY) {
extensions.push(khr::deferred_host_operations::NAME);
extensions.push(khr::acceleration_structure::NAME);
extensions.push(khr::buffer_device_address::NAME);
extensions.push(khr::ray_query::NAME);
}
if requested_features.contains(wgt::Features::EXPERIMENTAL_RAY_HIT_VERTEX_RETURN) {
extensions.push(khr::ray_tracing_position_fetch::NAME)
}
// Require `VK_EXT_conservative_rasterization` if the associated feature was requested
if requested_features.contains(wgt::Features::CONSERVATIVE_RASTERIZATION) {
extensions.push(ext::conservative_rasterization::NAME);
}
// Require `VK_KHR_portability_subset` on macOS/iOS
#[cfg(target_vendor = "apple")]
extensions.push(khr::portability_subset::NAME);
// Require `VK_EXT_texture_compression_astc_hdr` if the associated feature was requested
if requested_features.contains(wgt::Features::TEXTURE_COMPRESSION_ASTC_HDR) {
extensions.push(ext::texture_compression_astc_hdr::NAME);
}
// Require `VK_KHR_shader_atomic_int64` if the associated feature was requested
if requested_features.intersects(
wgt::Features::SHADER_INT64_ATOMIC_ALL_OPS | wgt::Features::SHADER_INT64_ATOMIC_MIN_MAX,
) {
extensions.push(khr::shader_atomic_int64::NAME);
}
// Require `VK_EXT_shader_image_atomic_int64` if the associated feature was requested
if requested_features.intersects(wgt::Features::TEXTURE_INT64_ATOMIC) {
extensions.push(ext::shader_image_atomic_int64::NAME);
}
// Require `VK_EXT_shader_atomic_float` if the associated feature was requested
if requested_features.contains(wgt::Features::SHADER_FLOAT32_ATOMIC) {
extensions.push(ext::shader_atomic_float::NAME);
}
// Require VK_GOOGLE_display_timing if the associated feature was requested
if requested_features.contains(wgt::Features::VULKAN_GOOGLE_DISPLAY_TIMING) {
extensions.push(google::display_timing::NAME);
}
if requested_features.contains(wgt::Features::EXPERIMENTAL_MESH_SHADER) {
extensions.push(ext::mesh_shader::NAME);
}
extensions
}
fn to_wgpu_limits(&self) -> wgt::Limits {
let limits = &self.properties.limits;
let max_compute_workgroup_sizes = limits.max_compute_work_group_size;
let max_compute_workgroups_per_dimension = limits.max_compute_work_group_count[0]
.min(limits.max_compute_work_group_count[1])
.min(limits.max_compute_work_group_count[2]);
let (
max_task_workgroup_total_count,
max_task_workgroups_per_dimension,
max_mesh_multiview_count,
max_mesh_output_layers,
) = match self.mesh_shader {
Some(m) => (
m.max_task_work_group_total_count,
m.max_task_work_group_count.into_iter().min().unwrap(),
m.max_mesh_multiview_view_count,
m.max_mesh_output_layers,
),
None => (0, 0, 0, 0),
};
// Prevent very large buffers on mesa and most android devices, and in all cases
// don't risk confusing JS by exceeding the range of a double.
let is_nvidia = self.properties.vendor_id == crate::auxil::db::nvidia::VENDOR;
let max_buffer_size =
if (cfg!(target_os = "linux") || cfg!(target_os = "android")) && !is_nvidia {
i32::MAX as u64
} else {
1u64 << 52
};
let mut max_binding_array_elements = 0;
let mut max_sampler_binding_array_elements = 0;
if let Some(ref descriptor_indexing) = self.descriptor_indexing {
max_binding_array_elements = descriptor_indexing
.max_descriptor_set_update_after_bind_sampled_images
.min(descriptor_indexing.max_descriptor_set_update_after_bind_storage_images)
.min(descriptor_indexing.max_descriptor_set_update_after_bind_storage_buffers)
.min(descriptor_indexing.max_per_stage_descriptor_update_after_bind_sampled_images)
.min(descriptor_indexing.max_per_stage_descriptor_update_after_bind_storage_images)
.min(
descriptor_indexing.max_per_stage_descriptor_update_after_bind_storage_buffers,
);
max_sampler_binding_array_elements = descriptor_indexing
.max_descriptor_set_update_after_bind_samplers
.min(descriptor_indexing.max_per_stage_descriptor_update_after_bind_samplers);
}
// TODO: programmatically determine this, if possible. It's unclear whether we can
// as of https://github.com/gpuweb/gpuweb/issues/2965#issuecomment-1361315447.
//
// In theory some tilers may not support this much. We can't tell however, and
// the driver will throw a DEVICE_REMOVED if it goes too high in usage. This is fine.
//
// 16 bytes per sample is the maximum size for a color attachment.
let max_color_attachment_bytes_per_sample =
limits.max_color_attachments * wgt::TextureFormat::MAX_TARGET_PIXEL_BYTE_COST;
let mut max_blas_geometry_count = 0;
let mut max_blas_primitive_count = 0;
let mut max_tlas_instance_count = 0;
let mut max_acceleration_structures_per_shader_stage = 0;
if let Some(properties) = self.acceleration_structure {
max_blas_geometry_count = properties.max_geometry_count as u32;
max_blas_primitive_count = properties.max_primitive_count as u32;
max_tlas_instance_count = properties.max_instance_count as u32;
max_acceleration_structures_per_shader_stage =
properties.max_per_stage_descriptor_acceleration_structures;
}
wgt::Limits {
max_texture_dimension_1d: limits.max_image_dimension1_d,
max_texture_dimension_2d: limits.max_image_dimension2_d,
max_texture_dimension_3d: limits.max_image_dimension3_d,
max_texture_array_layers: limits.max_image_array_layers,
max_bind_groups: limits
.max_bound_descriptor_sets
.min(crate::MAX_BIND_GROUPS as u32),
max_bindings_per_bind_group: wgt::Limits::default().max_bindings_per_bind_group,
max_dynamic_uniform_buffers_per_pipeline_layout: limits
.max_descriptor_set_uniform_buffers_dynamic,
max_dynamic_storage_buffers_per_pipeline_layout: limits
.max_descriptor_set_storage_buffers_dynamic,
max_sampled_textures_per_shader_stage: limits.max_per_stage_descriptor_sampled_images,
max_samplers_per_shader_stage: limits.max_per_stage_descriptor_samplers,
max_storage_buffers_per_shader_stage: limits.max_per_stage_descriptor_storage_buffers,
max_storage_textures_per_shader_stage: limits.max_per_stage_descriptor_storage_images,
max_uniform_buffers_per_shader_stage: limits.max_per_stage_descriptor_uniform_buffers,
max_binding_array_elements_per_shader_stage: max_binding_array_elements,
max_binding_array_sampler_elements_per_shader_stage: max_sampler_binding_array_elements,
max_uniform_buffer_binding_size: limits
.max_uniform_buffer_range
.min(crate::auxil::MAX_I32_BINDING_SIZE),
max_storage_buffer_binding_size: limits
.max_storage_buffer_range
.min(crate::auxil::MAX_I32_BINDING_SIZE),
max_vertex_buffers: limits
.max_vertex_input_bindings
.min(crate::MAX_VERTEX_BUFFERS as u32),
max_vertex_attributes: limits.max_vertex_input_attributes,
max_vertex_buffer_array_stride: limits.max_vertex_input_binding_stride,
min_subgroup_size: self
.subgroup_size_control
.map(|subgroup_size| subgroup_size.min_subgroup_size)
.unwrap_or(0),
max_subgroup_size: self
.subgroup_size_control
.map(|subgroup_size| subgroup_size.max_subgroup_size)
.unwrap_or(0),
max_push_constant_size: limits.max_push_constants_size,
min_uniform_buffer_offset_alignment: limits.min_uniform_buffer_offset_alignment as u32,
min_storage_buffer_offset_alignment: limits.min_storage_buffer_offset_alignment as u32,
max_inter_stage_shader_components: limits
.max_vertex_output_components
.min(limits.max_fragment_input_components),
max_color_attachments: limits
.max_color_attachments
.min(crate::MAX_COLOR_ATTACHMENTS as u32),
max_color_attachment_bytes_per_sample,
max_compute_workgroup_storage_size: limits.max_compute_shared_memory_size,
max_compute_invocations_per_workgroup: limits.max_compute_work_group_invocations,
max_compute_workgroup_size_x: max_compute_workgroup_sizes[0],
max_compute_workgroup_size_y: max_compute_workgroup_sizes[1],
max_compute_workgroup_size_z: max_compute_workgroup_sizes[2],
max_compute_workgroups_per_dimension,
max_buffer_size,
max_non_sampler_bindings: u32::MAX,
max_task_workgroup_total_count,
max_task_workgroups_per_dimension,
max_mesh_multiview_count,
max_mesh_output_layers,
max_blas_primitive_count,
max_blas_geometry_count,
max_tlas_instance_count,
max_acceleration_structures_per_shader_stage,
}
}
/// Return a `wgpu_hal::Alignments` structure describing this adapter.
///
/// The `using_robustness2` argument says how this adapter will implement
/// `wgpu_hal`'s guarantee that shaders can only read the [accessible
/// region][ar] of bindgroup's buffer bindings:
///
/// - If this adapter will depend on `VK_EXT_robustness2`'s
/// `robustBufferAccess2` feature to apply bounds checks to shader buffer
/// access, `using_robustness2` must be `true`.
///
/// - Otherwise, this adapter must use Naga to inject bounds checks on
/// buffer accesses, and `using_robustness2` must be `false`.
///
/// [ar]: ../../struct.BufferBinding.html#accessible-region
fn to_hal_alignments(&self, using_robustness2: bool) -> crate::Alignments {
let limits = &self.properties.limits;
crate::Alignments {
buffer_copy_offset: wgt::BufferSize::new(limits.optimal_buffer_copy_offset_alignment)
.unwrap(),
buffer_copy_pitch: wgt::BufferSize::new(limits.optimal_buffer_copy_row_pitch_alignment)
.unwrap(),
uniform_bounds_check_alignment: {
let alignment = if using_robustness2 {
self.robustness2
.unwrap() // if we're using it, we should have its properties
.robust_uniform_buffer_access_size_alignment
} else {
// If the `robustness2` properties are unavailable, then `robustness2` is not available either Naga-injected bounds checks are precise.
1
};
wgt::BufferSize::new(alignment).unwrap()
},
raw_tlas_instance_size: 64,
ray_tracing_scratch_buffer_alignment: self.acceleration_structure.map_or(
0,
|acceleration_structure| {
acceleration_structure.min_acceleration_structure_scratch_offset_alignment
},
),
}
}
}
impl super::InstanceShared {
fn inspect(
&self,
phd: vk::PhysicalDevice,
) -> (PhysicalDeviceProperties, PhysicalDeviceFeatures) {
let capabilities = {
let mut capabilities = PhysicalDeviceProperties::default();
capabilities.supported_extensions =
unsafe { self.raw.enumerate_device_extension_properties(phd).unwrap() };
capabilities.properties = unsafe { self.raw.get_physical_device_properties(phd) };
capabilities.device_api_version = capabilities.properties.api_version;
if let Some(ref get_device_properties) = self.get_physical_device_properties {
// Get these now to avoid borrowing conflicts later
let supports_maintenance3 = capabilities.device_api_version >= vk::API_VERSION_1_1
|| capabilities.supports_extension(khr::maintenance3::NAME);
let supports_descriptor_indexing = capabilities.device_api_version
>= vk::API_VERSION_1_2
|| capabilities.supports_extension(ext::descriptor_indexing::NAME);
let supports_driver_properties = capabilities.device_api_version
>= vk::API_VERSION_1_2
|| capabilities.supports_extension(khr::driver_properties::NAME);
let supports_subgroup_size_control = capabilities.device_api_version
>= vk::API_VERSION_1_3
|| capabilities.supports_extension(ext::subgroup_size_control::NAME);
let supports_robustness2 = capabilities.supports_extension(ext::robustness2::NAME);
let supports_acceleration_structure =
capabilities.supports_extension(khr::acceleration_structure::NAME);
let supports_mesh_shader = capabilities.supports_extension(ext::mesh_shader::NAME);
let mut properties2 = vk::PhysicalDeviceProperties2KHR::default();
if supports_maintenance3 {
let next = capabilities
.maintenance_3
.insert(vk::PhysicalDeviceMaintenance3Properties::default());
properties2 = properties2.push_next(next);
}
if supports_descriptor_indexing {
let next = capabilities
.descriptor_indexing
.insert(vk::PhysicalDeviceDescriptorIndexingPropertiesEXT::default());
properties2 = properties2.push_next(next);
}
if supports_acceleration_structure {
let next = capabilities
.acceleration_structure
.insert(vk::PhysicalDeviceAccelerationStructurePropertiesKHR::default());
properties2 = properties2.push_next(next);
}
if supports_driver_properties {
let next = capabilities
.driver
.insert(vk::PhysicalDeviceDriverPropertiesKHR::default());
properties2 = properties2.push_next(next);
}
if capabilities.device_api_version >= vk::API_VERSION_1_1 {
let next = capabilities
.subgroup
.insert(vk::PhysicalDeviceSubgroupProperties::default());
properties2 = properties2.push_next(next);
}
if supports_subgroup_size_control {
let next = capabilities
.subgroup_size_control
.insert(vk::PhysicalDeviceSubgroupSizeControlProperties::default());
properties2 = properties2.push_next(next);
}
if supports_robustness2 {
let next = capabilities
.robustness2
.insert(vk::PhysicalDeviceRobustness2PropertiesEXT::default());
properties2 = properties2.push_next(next);
}
if supports_mesh_shader {
let next = capabilities
.mesh_shader
.insert(vk::PhysicalDeviceMeshShaderPropertiesEXT::default());
properties2 = properties2.push_next(next);
}
unsafe {
get_device_properties.get_physical_device_properties2(phd, &mut properties2)
};
if is_intel_igpu_outdated_for_robustness2(
capabilities.properties,
capabilities.driver,
) {
capabilities
.supported_extensions
.retain(|&x| x.extension_name_as_c_str() != Ok(ext::robustness2::NAME));
capabilities.robustness2 = None;
}
};
capabilities
};
let mut features = PhysicalDeviceFeatures::default();
features.core = if let Some(ref get_device_properties) = self.get_physical_device_properties
{
let core = vk::PhysicalDeviceFeatures::default();
let mut features2 = vk::PhysicalDeviceFeatures2KHR::default().features(core);
// `VK_KHR_multiview` is promoted to 1.1
if capabilities.device_api_version >= vk::API_VERSION_1_1
|| capabilities.supports_extension(khr::multiview::NAME)
{
let next = features
.multiview
.insert(vk::PhysicalDeviceMultiviewFeatures::default());
features2 = features2.push_next(next);
}
// `VK_KHR_sampler_ycbcr_conversion` is promoted to 1.1
if capabilities.device_api_version >= vk::API_VERSION_1_1
|| capabilities.supports_extension(khr::sampler_ycbcr_conversion::NAME)
{
let next = features
.sampler_ycbcr_conversion
.insert(vk::PhysicalDeviceSamplerYcbcrConversionFeatures::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(ext::descriptor_indexing::NAME) {
let next = features
.descriptor_indexing
.insert(vk::PhysicalDeviceDescriptorIndexingFeaturesEXT::default());
features2 = features2.push_next(next);
}
// `VK_KHR_timeline_semaphore` is promoted to 1.2, but has no
// changes, so we can keep using the extension unconditionally.
if capabilities.supports_extension(khr::timeline_semaphore::NAME) {
let next = features
.timeline_semaphore
.insert(vk::PhysicalDeviceTimelineSemaphoreFeaturesKHR::default());
features2 = features2.push_next(next);
}
// `VK_KHR_shader_atomic_int64` is promoted to 1.2, but has no
// changes, so we can keep using the extension unconditionally.
if capabilities.device_api_version >= vk::API_VERSION_1_2
|| capabilities.supports_extension(khr::shader_atomic_int64::NAME)
{
let next = features
.shader_atomic_int64
.insert(vk::PhysicalDeviceShaderAtomicInt64Features::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(ext::shader_image_atomic_int64::NAME) {
let next = features
.shader_image_atomic_int64
.insert(vk::PhysicalDeviceShaderImageAtomicInt64FeaturesEXT::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(ext::shader_atomic_float::NAME) {
let next = features
.shader_atomic_float
.insert(vk::PhysicalDeviceShaderAtomicFloatFeaturesEXT::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(ext::image_robustness::NAME) {
let next = features
.image_robustness
.insert(vk::PhysicalDeviceImageRobustnessFeaturesEXT::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(ext::robustness2::NAME) {
let next = features
.robustness2
.insert(vk::PhysicalDeviceRobustness2FeaturesEXT::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(ext::texture_compression_astc_hdr::NAME) {
let next = features
.astc_hdr
.insert(vk::PhysicalDeviceTextureCompressionASTCHDRFeaturesEXT::default());
features2 = features2.push_next(next);
}
// `VK_KHR_shader_float16_int8` is promoted to 1.2
if capabilities.device_api_version >= vk::API_VERSION_1_2
|| capabilities.supports_extension(khr::shader_float16_int8::NAME)
{
let next = features
.shader_float16_int8
.insert(vk::PhysicalDeviceShaderFloat16Int8FeaturesKHR::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(khr::_16bit_storage::NAME) {
let next = features
._16bit_storage
.insert(vk::PhysicalDevice16BitStorageFeaturesKHR::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(khr::acceleration_structure::NAME) {
let next = features
.acceleration_structure
.insert(vk::PhysicalDeviceAccelerationStructureFeaturesKHR::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(khr::ray_tracing_position_fetch::NAME) {
let next = features
.position_fetch
.insert(vk::PhysicalDeviceRayTracingPositionFetchFeaturesKHR::default());
features2 = features2.push_next(next);
}
// `VK_KHR_zero_initialize_workgroup_memory` is promoted to 1.3
if capabilities.device_api_version >= vk::API_VERSION_1_3
|| capabilities.supports_extension(khr::zero_initialize_workgroup_memory::NAME)
{
let next = features
.zero_initialize_workgroup_memory
.insert(vk::PhysicalDeviceZeroInitializeWorkgroupMemoryFeatures::default());
features2 = features2.push_next(next);
}
// `VK_EXT_subgroup_size_control` is promoted to 1.3
if capabilities.device_api_version >= vk::API_VERSION_1_3
|| capabilities.supports_extension(ext::subgroup_size_control::NAME)
{
let next = features
.subgroup_size_control
.insert(vk::PhysicalDeviceSubgroupSizeControlFeatures::default());
features2 = features2.push_next(next);
}
if capabilities.supports_extension(ext::mesh_shader::NAME) {
let next = features
.mesh_shader
.insert(vk::PhysicalDeviceMeshShaderFeaturesEXT::default());
features2 = features2.push_next(next);
}
// `VK_KHR_shader_integer_dot_product` is promoted to 1.3
if capabilities.device_api_version >= vk::API_VERSION_1_3
|| capabilities.supports_extension(khr::shader_integer_dot_product::NAME)
{
let next = features
.shader_integer_dot_product
.insert(vk::PhysicalDeviceShaderIntegerDotProductFeatures::default());
features2 = features2.push_next(next);
}
unsafe { get_device_properties.get_physical_device_features2(phd, &mut features2) };
features2.features
} else {
unsafe { self.raw.get_physical_device_features(phd) }
};
(capabilities, features)
}
}
impl super::Instance {
pub fn expose_adapter(
&self,
phd: vk::PhysicalDevice,
) -> Option<crate::ExposedAdapter<super::Api>> {
use crate::auxil::db;
let (phd_capabilities, phd_features) = self.shared.inspect(phd);
let info = wgt::AdapterInfo {
name: {
phd_capabilities
.properties
.device_name_as_c_str()
.ok()
.and_then(|name| name.to_str().ok())
.unwrap_or("?")
.to_owned()
},
vendor: phd_capabilities.properties.vendor_id,
device: phd_capabilities.properties.device_id,
device_type: match phd_capabilities.properties.device_type {
vk::PhysicalDeviceType::OTHER => wgt::DeviceType::Other,
vk::PhysicalDeviceType::INTEGRATED_GPU => wgt::DeviceType::IntegratedGpu,
vk::PhysicalDeviceType::DISCRETE_GPU => wgt::DeviceType::DiscreteGpu,
vk::PhysicalDeviceType::VIRTUAL_GPU => wgt::DeviceType::VirtualGpu,
vk::PhysicalDeviceType::CPU => wgt::DeviceType::Cpu,
_ => wgt::DeviceType::Other,
},
driver: {
phd_capabilities
.driver
.as_ref()
.and_then(|driver| driver.driver_name_as_c_str().ok())
.and_then(|name| name.to_str().ok())
.unwrap_or("?")
.to_owned()
},
driver_info: {
phd_capabilities
.driver
.as_ref()
.and_then(|driver| driver.driver_info_as_c_str().ok())
.and_then(|name| name.to_str().ok())
.unwrap_or("?")
.to_owned()
},
backend: wgt::Backend::Vulkan,
};
let (available_features, mut downlevel_flags) =
phd_features.to_wgpu(&self.shared.raw, phd, &phd_capabilities);
let mut workarounds = super::Workarounds::empty();
{
// TODO: only enable for particular devices
workarounds |= super::Workarounds::SEPARATE_ENTRY_POINTS;
workarounds.set(
super::Workarounds::EMPTY_RESOLVE_ATTACHMENT_LISTS,
phd_capabilities.properties.vendor_id == db::qualcomm::VENDOR,
);
workarounds.set(
super::Workarounds::FORCE_FILL_BUFFER_WITH_SIZE_GREATER_4096_ALIGNED_OFFSET_16,
phd_capabilities.properties.vendor_id == db::nvidia::VENDOR,
);
};
if info.driver == "llvmpipe" {
// The `F16_IN_F32` instructions do not normally require native `F16` support, but on
// llvmpipe, they do.
downlevel_flags.set(
wgt::DownlevelFlags::SHADER_F16_IN_F32,
available_features.contains(wgt::Features::SHADER_F16),
);
}
if let Some(driver) = phd_capabilities.driver {
if driver.conformance_version.major == 0 {
if driver.driver_id == vk::DriverId::MOLTENVK {
log::debug!("Adapter is not Vulkan compliant, but is MoltenVK, continuing");
} else if self
.shared
.flags
.contains(wgt::InstanceFlags::ALLOW_UNDERLYING_NONCOMPLIANT_ADAPTER)
{
log::warn!("Adapter is not Vulkan compliant: {}", info.name);
} else {
log::warn!(
"Adapter is not Vulkan compliant, hiding adapter: {}",
info.name
);
return None;
}
}
}
if phd_capabilities.device_api_version == vk::API_VERSION_1_0
&& !phd_capabilities.supports_extension(khr::storage_buffer_storage_class::NAME)
{
log::warn!(
"SPIR-V storage buffer class is not supported, hiding adapter: {}",
info.name
);
return None;
}
if !phd_capabilities.supports_extension(khr::maintenance1::NAME)
&& phd_capabilities.device_api_version < vk::API_VERSION_1_1
{
log::warn!(
"VK_KHR_maintenance1 is not supported, hiding adapter: {}",
info.name
);
return None;
}
let queue_families = unsafe {
self.shared
.raw
.get_physical_device_queue_family_properties(phd)
};
let queue_flags = queue_families.first()?.queue_flags;
if !queue_flags.contains(vk::QueueFlags::GRAPHICS) {
log::warn!("The first queue only exposes {queue_flags:?}");
return None;
}
let private_caps = super::PrivateCapabilities {
image_view_usage: phd_capabilities.device_api_version >= vk::API_VERSION_1_1
|| phd_capabilities.supports_extension(khr::maintenance2::NAME),
timeline_semaphores: match phd_features.timeline_semaphore {
Some(features) => features.timeline_semaphore == vk::TRUE,
None => phd_features
.timeline_semaphore
.is_some_and(|ext| ext.timeline_semaphore != 0),
},
texture_d24: supports_format(
&self.shared.raw,
phd,
vk::Format::X8_D24_UNORM_PACK32,
vk::ImageTiling::OPTIMAL,
depth_stencil_required_flags(),
),
texture_d24_s8: supports_format(
&self.shared.raw,
phd,
vk::Format::D24_UNORM_S8_UINT,
vk::ImageTiling::OPTIMAL,
depth_stencil_required_flags(),
),
texture_s8: supports_format(
&self.shared.raw,
phd,
vk::Format::S8_UINT,
vk::ImageTiling::OPTIMAL,
depth_stencil_required_flags(),
),
multi_draw_indirect: phd_features.core.multi_draw_indirect != 0,
non_coherent_map_mask: phd_capabilities.properties.limits.non_coherent_atom_size - 1,
can_present: true,
//TODO: make configurable
robust_buffer_access: phd_features.core.robust_buffer_access != 0,
robust_image_access: match phd_features.robustness2 {
Some(ref f) => f.robust_image_access2 != 0,
None => phd_features
.image_robustness
.is_some_and(|ext| ext.robust_image_access != 0),
},
robust_buffer_access2: phd_features
.robustness2
.as_ref()
.map(|r| r.robust_buffer_access2 == 1)
.unwrap_or_default(),
robust_image_access2: phd_features
.robustness2
.as_ref()
.map(|r| r.robust_image_access2 == 1)
.unwrap_or_default(),
zero_initialize_workgroup_memory: phd_features
.zero_initialize_workgroup_memory
.is_some_and(|ext| ext.shader_zero_initialize_workgroup_memory == vk::TRUE),
image_format_list: phd_capabilities.device_api_version >= vk::API_VERSION_1_2
|| phd_capabilities.supports_extension(khr::image_format_list::NAME),
maximum_samplers: phd_capabilities
.properties
.limits
.max_sampler_allocation_count,
shader_integer_dot_product: phd_features
.shader_integer_dot_product
.is_some_and(|ext| ext.shader_integer_dot_product != 0),
shader_int8: phd_features
.shader_float16_int8
.is_some_and(|features| features.shader_int8 != 0),
};
let capabilities = crate::Capabilities {
limits: phd_capabilities.to_wgpu_limits(),
alignments: phd_capabilities.to_hal_alignments(private_caps.robust_buffer_access2),
downlevel: wgt::DownlevelCapabilities {
flags: downlevel_flags,
limits: wgt::DownlevelLimits {},
shader_model: wgt::ShaderModel::Sm5, //TODO?
},
};
let adapter = super::Adapter {
raw: phd,
instance: Arc::clone(&self.shared),
//queue_families,
known_memory_flags: vk::MemoryPropertyFlags::DEVICE_LOCAL
| vk::MemoryPropertyFlags::HOST_VISIBLE
| vk::MemoryPropertyFlags::HOST_COHERENT
| vk::MemoryPropertyFlags::HOST_CACHED
| vk::MemoryPropertyFlags::LAZILY_ALLOCATED,
phd_capabilities,
phd_features,
downlevel_flags,
private_caps,
workarounds,
};
Some(crate::ExposedAdapter {
adapter,
info,
features: available_features,
capabilities,
})
}
}
impl super::Adapter {
pub fn raw_physical_device(&self) -> vk::PhysicalDevice {
self.raw
}
pub fn physical_device_capabilities(&self) -> &PhysicalDeviceProperties {
&self.phd_capabilities
}
pub fn shared_instance(&self) -> &super::InstanceShared {
&self.instance
}
pub fn required_device_extensions(&self, features: wgt::Features) -> Vec<&'static CStr> {
let (supported_extensions, unsupported_extensions) = self
.phd_capabilities
.get_required_extensions(features)
.iter()
.partition::<Vec<&CStr>, _>(|&&extension| {
self.phd_capabilities.supports_extension(extension)
});
if !unsupported_extensions.is_empty() {
log::warn!("Missing extensions: {unsupported_extensions:?}");
}
log::debug!("Supported extensions: {supported_extensions:?}");
supported_extensions
}
/// Create a `PhysicalDeviceFeatures` for opening a logical device with
/// `features` from this adapter.
///
/// The given `enabled_extensions` set must include all the extensions
/// selected by [`required_device_extensions`] when passed `features`.
/// Otherwise, the `PhysicalDeviceFeatures` value may not be able to select
/// all the Vulkan features needed to represent `features` and this
/// adapter's characteristics.
///
/// Typically, you'd simply call `required_device_extensions`, and then pass
/// its return value and the feature set you gave it directly to this
/// function. But it's fine to add more extensions to the list.
///
/// [`required_device_extensions`]: Self::required_device_extensions
pub fn physical_device_features(
&self,
enabled_extensions: &[&'static CStr],
features: wgt::Features,
) -> PhysicalDeviceFeatures {
PhysicalDeviceFeatures::from_extensions_and_requested_features(
&self.phd_capabilities,
&self.phd_features,
enabled_extensions,
features,
self.downlevel_flags,
&self.private_caps,
)
}
/// # Safety
///
/// - `raw_device` must be created from this adapter.
/// - `raw_device` must be created using `family_index`, `enabled_extensions` and `physical_device_features()`
/// - `enabled_extensions` must be a superset of `required_device_extensions()`.
/// - If `drop_callback` is [`None`], wgpu-hal will take ownership of `raw_device`. If
/// `drop_callback` is [`Some`], `raw_device` must be valid until the callback is called.
#[allow(clippy::too_many_arguments)]
pub unsafe fn device_from_raw(
&self,
raw_device: ash::Device,
drop_callback: Option<crate::DropCallback>,
enabled_extensions: &[&'static CStr],
features: wgt::Features,
memory_hints: &wgt::MemoryHints,
family_index: u32,
queue_index: u32,
) -> Result<crate::OpenDevice<super::Api>, crate::DeviceError> {
let mem_properties = {
profiling::scope!("vkGetPhysicalDeviceMemoryProperties");
unsafe {
self.instance
.raw
.get_physical_device_memory_properties(self.raw)
}
};
let memory_types = &mem_properties.memory_types_as_slice();
let valid_ash_memory_types = memory_types.iter().enumerate().fold(0, |u, (i, mem)| {
if self.known_memory_flags.contains(mem.property_flags) {
u | (1 << i)
} else {
u
}
});
let swapchain_fn = khr::swapchain::Device::new(&self.instance.raw, &raw_device);
// Note that VK_EXT_debug_utils is an instance extension (enabled at the instance
// level) but contains a few functions that can be loaded directly on the Device for a
// dispatch-table-less pointer.
let debug_utils_fn = if self.instance.extensions.contains(&ext::debug_utils::NAME) {
Some(ext::debug_utils::Device::new(
&self.instance.raw,
&raw_device,
))
} else {
None
};
let indirect_count_fn = if enabled_extensions.contains(&khr::draw_indirect_count::NAME) {
Some(khr::draw_indirect_count::Device::new(
&self.instance.raw,
&raw_device,
))
} else {
None
};
let timeline_semaphore_fn = if enabled_extensions.contains(&khr::timeline_semaphore::NAME) {
Some(super::ExtensionFn::Extension(
khr::timeline_semaphore::Device::new(&self.instance.raw, &raw_device),
))
} else if self.phd_capabilities.device_api_version >= vk::API_VERSION_1_2 {
Some(super::ExtensionFn::Promoted)
} else {
None
};
let ray_tracing_fns = if enabled_extensions.contains(&khr::acceleration_structure::NAME)
&& enabled_extensions.contains(&khr::buffer_device_address::NAME)
{
Some(super::RayTracingDeviceExtensionFunctions {
acceleration_structure: khr::acceleration_structure::Device::new(
&self.instance.raw,
&raw_device,
),
buffer_device_address: khr::buffer_device_address::Device::new(
&self.instance.raw,
&raw_device,
),
})
} else {
None
};
let mesh_shading_fns = if enabled_extensions.contains(&ext::mesh_shader::NAME) {
Some(ext::mesh_shader::Device::new(
&self.instance.raw,
&raw_device,
))
} else {
None
};
let naga_options = {
use naga::back::spv;
// The following capabilities are always available
// see https://registry.khronos.org/vulkan/specs/1.3-extensions/html/chap52.html#spirvenv-capabilities
let mut capabilities = vec![
spv::Capability::Shader,
spv::Capability::Matrix,
spv::Capability::Sampled1D,
spv::Capability::Image1D,
spv::Capability::ImageQuery,
spv::Capability::DerivativeControl,
spv::Capability::StorageImageExtendedFormats,
];
if self
.downlevel_flags
.contains(wgt::DownlevelFlags::CUBE_ARRAY_TEXTURES)
{
capabilities.push(spv::Capability::SampledCubeArray);
}
if self
.downlevel_flags
.contains(wgt::DownlevelFlags::MULTISAMPLED_SHADING)
{
capabilities.push(spv::Capability::SampleRateShading);
}
if features.contains(wgt::Features::MULTIVIEW) {
capabilities.push(spv::Capability::MultiView);
}
if features.contains(wgt::Features::SHADER_PRIMITIVE_INDEX) {
capabilities.push(spv::Capability::Geometry);
}
if features.intersects(wgt::Features::SUBGROUP | wgt::Features::SUBGROUP_VERTEX) {
capabilities.push(spv::Capability::GroupNonUniform);
capabilities.push(spv::Capability::GroupNonUniformVote);
capabilities.push(spv::Capability::GroupNonUniformArithmetic);
capabilities.push(spv::Capability::GroupNonUniformBallot);
capabilities.push(spv::Capability::GroupNonUniformShuffle);
capabilities.push(spv::Capability::GroupNonUniformShuffleRelative);
capabilities.push(spv::Capability::GroupNonUniformQuad);
}
if features.intersects(
wgt::Features::SAMPLED_TEXTURE_AND_STORAGE_BUFFER_ARRAY_NON_UNIFORM_INDEXING
| wgt::Features::STORAGE_TEXTURE_ARRAY_NON_UNIFORM_INDEXING
| wgt::Features::UNIFORM_BUFFER_BINDING_ARRAYS,
) {
capabilities.push(spv::Capability::ShaderNonUniform);
}
if features.contains(wgt::Features::BGRA8UNORM_STORAGE) {
capabilities.push(spv::Capability::StorageImageWriteWithoutFormat);
}
if features.contains(wgt::Features::EXPERIMENTAL_RAY_QUERY) {
capabilities.push(spv::Capability::RayQueryKHR);
}
if features.contains(wgt::Features::SHADER_INT64) {
capabilities.push(spv::Capability::Int64);
}
if features.contains(wgt::Features::SHADER_F16) {
capabilities.push(spv::Capability::Float16);
}
if features.intersects(
wgt::Features::SHADER_INT64_ATOMIC_ALL_OPS
| wgt::Features::SHADER_INT64_ATOMIC_MIN_MAX
| wgt::Features::TEXTURE_INT64_ATOMIC,
) {
capabilities.push(spv::Capability::Int64Atomics);
}
if features.intersects(wgt::Features::TEXTURE_INT64_ATOMIC) {
capabilities.push(spv::Capability::Int64ImageEXT);
}
if features.contains(wgt::Features::SHADER_FLOAT32_ATOMIC) {
capabilities.push(spv::Capability::AtomicFloat32AddEXT);
}
if features.contains(wgt::Features::CLIP_DISTANCES) {
capabilities.push(spv::Capability::ClipDistance);
}
let mut flags = spv::WriterFlags::empty();
flags.set(
spv::WriterFlags::DEBUG,
self.instance.flags.contains(wgt::InstanceFlags::DEBUG),
);
flags.set(
spv::WriterFlags::LABEL_VARYINGS,
self.phd_capabilities.properties.vendor_id != crate::auxil::db::qualcomm::VENDOR,
);
flags.set(
spv::WriterFlags::FORCE_POINT_SIZE,
//Note: we could technically disable this when we are compiling separate entry points,
// and we know exactly that the primitive topology is not `PointList`.
// But this requires cloning the `spv::Options` struct, which has heap allocations.
true, // could check `super::Workarounds::SEPARATE_ENTRY_POINTS`
);
if features.contains(wgt::Features::EXPERIMENTAL_RAY_QUERY) {
capabilities.push(spv::Capability::RayQueryKHR);
}
if features.contains(wgt::Features::EXPERIMENTAL_RAY_HIT_VERTEX_RETURN) {
capabilities.push(spv::Capability::RayQueryPositionFetchKHR)
}
if self.private_caps.shader_integer_dot_product {
// See <https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_KHR_shader_integer_dot_product.html#_new_spir_v_capabilities>.
capabilities.extend(&[
spv::Capability::DotProductInputAllKHR,
spv::Capability::DotProductInput4x8BitKHR,
spv::Capability::DotProductInput4x8BitPackedKHR,
spv::Capability::DotProductKHR,
]);
}
if self.private_caps.shader_int8 {
// See <https://registry.khronos.org/vulkan/specs/latest/man/html/VkPhysicalDeviceShaderFloat16Int8Features.html#extension-features-shaderInt8>.
capabilities.extend(&[spv::Capability::Int8]);
}
spv::Options {
lang_version: match self.phd_capabilities.device_api_version {
// Use maximum supported SPIR-V version according to
// <https://github.com/KhronosGroup/Vulkan-Docs/blob/19b7651/appendices/spirvenv.adoc?plain=1#L21-L40>.
vk::API_VERSION_1_0..vk::API_VERSION_1_1 => (1, 0),
vk::API_VERSION_1_1..vk::API_VERSION_1_2 => (1, 3),
vk::API_VERSION_1_2..vk::API_VERSION_1_3 => (1, 5),
vk::API_VERSION_1_3.. => (1, 6),
_ => unreachable!(),
},
flags,
capabilities: Some(capabilities.iter().cloned().collect()),
bounds_check_policies: naga::proc::BoundsCheckPolicies {
index: naga::proc::BoundsCheckPolicy::Restrict,
buffer: if self.private_caps.robust_buffer_access2 {
naga::proc::BoundsCheckPolicy::Unchecked
} else {
naga::proc::BoundsCheckPolicy::Restrict
},
image_load: if self.private_caps.robust_image_access {
naga::proc::BoundsCheckPolicy::Unchecked
} else {
naga::proc::BoundsCheckPolicy::Restrict
},
// TODO: support bounds checks on binding arrays
binding_array: naga::proc::BoundsCheckPolicy::Unchecked,
},
zero_initialize_workgroup_memory: if self
.private_caps
.zero_initialize_workgroup_memory
{
spv::ZeroInitializeWorkgroupMemoryMode::Native
} else {
spv::ZeroInitializeWorkgroupMemoryMode::Polyfill
},
force_loop_bounding: true,
use_storage_input_output_16: features.contains(wgt::Features::SHADER_F16)
&& self.phd_features.supports_storage_input_output_16(),
// We need to build this separately for each invocation, so just default it out here
binding_map: BTreeMap::default(),
debug_info: None,
}
};
let raw_queue = {
profiling::scope!("vkGetDeviceQueue");
unsafe { raw_device.get_device_queue(family_index, queue_index) }
};
let driver_version = self
.phd_capabilities
.properties
.driver_version
.to_be_bytes();
#[rustfmt::skip]
let pipeline_cache_validation_key = [
driver_version[0], driver_version[1], driver_version[2], driver_version[3],
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
];
let drop_guard = crate::DropGuard::from_option(drop_callback);
let shared = Arc::new(super::DeviceShared {
raw: raw_device,
family_index,
queue_index,
raw_queue,
drop_guard,
instance: Arc::clone(&self.instance),
physical_device: self.raw,
enabled_extensions: enabled_extensions.into(),
extension_fns: super::DeviceExtensionFunctions {
debug_utils: debug_utils_fn,
draw_indirect_count: indirect_count_fn,
timeline_semaphore: timeline_semaphore_fn,
ray_tracing: ray_tracing_fns,
mesh_shading: mesh_shading_fns,
},
pipeline_cache_validation_key,
vendor_id: self.phd_capabilities.properties.vendor_id,
timestamp_period: self.phd_capabilities.properties.limits.timestamp_period,
private_caps: self.private_caps.clone(),
features,
workarounds: self.workarounds,
render_passes: Mutex::new(Default::default()),
sampler_cache: Mutex::new(super::sampler::SamplerCache::new(
self.private_caps.maximum_samplers,
)),
memory_allocations_counter: Default::default(),
texture_identity_factory: super::ResourceIdentityFactory::new(),
texture_view_identity_factory: super::ResourceIdentityFactory::new(),
});
let relay_semaphores = super::RelaySemaphores::new(&shared)?;
let queue = super::Queue {
raw: raw_queue,
swapchain_fn,
device: Arc::clone(&shared),
family_index,
relay_semaphores: Mutex::new(relay_semaphores),
signal_semaphores: Default::default(),
};
let mem_allocator = {
let limits = self.phd_capabilities.properties.limits;
// Note: the parameters here are not set in stone nor where they picked with
// strong confidence.
// `final_free_list_chunk` should be bigger than starting_free_list_chunk if
// we want the behavior of starting with smaller block sizes and using larger
// ones only after we observe that the small ones aren't enough, which I think
// is a good "I don't know what the workload is going to be like" approach.
//
// For reference, `VMA`, and `gpu_allocator` both start with 256 MB blocks
// (then VMA doubles the block size each time it needs a new block).
// At some point it would be good to experiment with real workloads
//
// TODO(#5925): The plan is to switch the Vulkan backend from `gpu_alloc` to
// `gpu_allocator` which has a different (simpler) set of configuration options.
//
// TODO: These parameters should take hardware capabilities into account.
let mb = 1024 * 1024;
let perf_cfg = gpu_alloc::Config {
starting_free_list_chunk: 128 * mb,
final_free_list_chunk: 512 * mb,
minimal_buddy_size: 1,
initial_buddy_dedicated_size: 8 * mb,
dedicated_threshold: 32 * mb,
preferred_dedicated_threshold: mb,
transient_dedicated_threshold: 128 * mb,
};
let mem_usage_cfg = gpu_alloc::Config {
starting_free_list_chunk: 8 * mb,
final_free_list_chunk: 64 * mb,
minimal_buddy_size: 1,
initial_buddy_dedicated_size: 8 * mb,
dedicated_threshold: 8 * mb,
preferred_dedicated_threshold: mb,
transient_dedicated_threshold: 16 * mb,
};
let config = match memory_hints {
wgt::MemoryHints::Performance => perf_cfg,
wgt::MemoryHints::MemoryUsage => mem_usage_cfg,
wgt::MemoryHints::Manual {
suballocated_device_memory_block_size,
} => gpu_alloc::Config {
starting_free_list_chunk: suballocated_device_memory_block_size.start,
final_free_list_chunk: suballocated_device_memory_block_size.end,
initial_buddy_dedicated_size: suballocated_device_memory_block_size.start,
..perf_cfg
},
};
let max_memory_allocation_size =
if let Some(maintenance_3) = self.phd_capabilities.maintenance_3 {
maintenance_3.max_memory_allocation_size
} else {
u64::MAX
};
let properties = gpu_alloc::DeviceProperties {
max_memory_allocation_count: limits.max_memory_allocation_count,
max_memory_allocation_size,
non_coherent_atom_size: limits.non_coherent_atom_size,
memory_types: memory_types
.iter()
.map(|memory_type| gpu_alloc::MemoryType {
props: gpu_alloc::MemoryPropertyFlags::from_bits_truncate(
memory_type.property_flags.as_raw() as u8,
),
heap: memory_type.heap_index,
})
.collect(),
memory_heaps: mem_properties
.memory_heaps_as_slice()
.iter()
.map(|&memory_heap| gpu_alloc::MemoryHeap {
size: memory_heap.size,
})
.collect(),
buffer_device_address: enabled_extensions
.contains(&khr::buffer_device_address::NAME),
};
gpu_alloc::GpuAllocator::new(config, properties)
};
let desc_allocator = gpu_descriptor::DescriptorAllocator::new(
if let Some(di) = self.phd_capabilities.descriptor_indexing {
di.max_update_after_bind_descriptors_in_all_pools
} else {
0
},
);
let device = super::Device {
shared,
mem_allocator: Mutex::new(mem_allocator),
desc_allocator: Mutex::new(desc_allocator),
valid_ash_memory_types,
naga_options,
#[cfg(feature = "renderdoc")]
render_doc: Default::default(),
counters: Default::default(),
};
Ok(crate::OpenDevice { device, queue })
}
pub fn texture_format_as_raw(&self, texture_format: wgt::TextureFormat) -> vk::Format {
self.private_caps.map_texture_format(texture_format)
}
/// # Safety:
/// - Same as `open` plus
/// - The callback may not change anything that the device does not support.
/// - The callback may not remove features.
pub unsafe fn open_with_callback<'a>(
&self,
features: wgt::Features,
memory_hints: &wgt::MemoryHints,
callback: Option<Box<super::CreateDeviceCallback<'a>>>,
) -> Result<crate::OpenDevice<super::Api>, crate::DeviceError> {
let mut enabled_extensions = self.required_device_extensions(features);
let mut enabled_phd_features = self.physical_device_features(&enabled_extensions, features);
let family_index = 0; //TODO
let family_info = vk::DeviceQueueCreateInfo::default()
.queue_family_index(family_index)
.queue_priorities(&[1.0]);
let mut family_infos = Vec::from([family_info]);
let mut pre_info = vk::DeviceCreateInfo::default();
if let Some(callback) = callback {
callback(super::CreateDeviceCallbackArgs {
extensions: &mut enabled_extensions,
device_features: &mut enabled_phd_features,
queue_create_infos: &mut family_infos,
create_info: &mut pre_info,
_phantom: PhantomData,
})
}
let str_pointers = enabled_extensions
.iter()
.map(|&s| {
// Safe because `enabled_extensions` entries have static lifetime.
s.as_ptr()
})
.collect::<Vec<_>>();
let pre_info = pre_info
.queue_create_infos(&family_infos)
.enabled_extension_names(&str_pointers);
let info = enabled_phd_features.add_to_device_create(pre_info);
let raw_device = {
profiling::scope!("vkCreateDevice");
unsafe {
self.instance
.raw
.create_device(self.raw, &info, None)
.map_err(map_err)?
}
};
fn map_err(err: vk::Result) -> crate::DeviceError {
match err {
vk::Result::ERROR_TOO_MANY_OBJECTS => crate::DeviceError::OutOfMemory,
vk::Result::ERROR_INITIALIZATION_FAILED => crate::DeviceError::Lost,
vk::Result::ERROR_EXTENSION_NOT_PRESENT | vk::Result::ERROR_FEATURE_NOT_PRESENT => {
crate::hal_usage_error(err)
}
other => super::map_host_device_oom_and_lost_err(other),
}
}
unsafe {
self.device_from_raw(
raw_device,
None,
&enabled_extensions,
features,
memory_hints,
family_info.queue_family_index,
0,
)
}
}
}
impl crate::Adapter for super::Adapter {
type A = super::Api;
unsafe fn open(
&self,
features: wgt::Features,
_limits: &wgt::Limits,
memory_hints: &wgt::MemoryHints,
) -> Result<crate::OpenDevice<super::Api>, crate::DeviceError> {
unsafe { self.open_with_callback(features, memory_hints, None) }
}
unsafe fn texture_format_capabilities(
&self,
format: wgt::TextureFormat,
) -> crate::TextureFormatCapabilities {
use crate::TextureFormatCapabilities as Tfc;
let vk_format = self.private_caps.map_texture_format(format);
let properties = unsafe {
self.instance
.raw
.get_physical_device_format_properties(self.raw, vk_format)
};
let features = properties.optimal_tiling_features;
let mut flags = Tfc::empty();
flags.set(
Tfc::SAMPLED,
features.contains(vk::FormatFeatureFlags::SAMPLED_IMAGE),
);
flags.set(
Tfc::SAMPLED_LINEAR,
features.contains(vk::FormatFeatureFlags::SAMPLED_IMAGE_FILTER_LINEAR),
);
// flags.set(
// Tfc::SAMPLED_MINMAX,
// features.contains(vk::FormatFeatureFlags::SAMPLED_IMAGE_FILTER_MINMAX),
// );
flags.set(
Tfc::STORAGE_READ_WRITE
| Tfc::STORAGE_WRITE_ONLY
| Tfc::STORAGE_READ_ONLY
| Tfc::STORAGE_ATOMIC,
features.contains(vk::FormatFeatureFlags::STORAGE_IMAGE),
);
flags.set(
Tfc::STORAGE_ATOMIC,
features.contains(vk::FormatFeatureFlags::STORAGE_IMAGE_ATOMIC),
);
flags.set(
Tfc::COLOR_ATTACHMENT,
features.contains(vk::FormatFeatureFlags::COLOR_ATTACHMENT),
);
flags.set(
Tfc::COLOR_ATTACHMENT_BLEND,
features.contains(vk::FormatFeatureFlags::COLOR_ATTACHMENT_BLEND),
);
flags.set(
Tfc::DEPTH_STENCIL_ATTACHMENT,
features.contains(vk::FormatFeatureFlags::DEPTH_STENCIL_ATTACHMENT),
);
flags.set(
Tfc::COPY_SRC,
features.intersects(vk::FormatFeatureFlags::TRANSFER_SRC),
);
flags.set(
Tfc::COPY_DST,
features.intersects(vk::FormatFeatureFlags::TRANSFER_DST),
);
flags.set(
Tfc::STORAGE_ATOMIC,
features.intersects(vk::FormatFeatureFlags::STORAGE_IMAGE_ATOMIC),
);
// Vulkan is very permissive about MSAA
flags.set(Tfc::MULTISAMPLE_RESOLVE, !format.is_compressed());
// get the supported sample counts
let format_aspect = crate::FormatAspects::from(format);
let limits = self.phd_capabilities.properties.limits;
let sample_flags = if format_aspect.contains(crate::FormatAspects::DEPTH) {
limits
.framebuffer_depth_sample_counts
.min(limits.sampled_image_depth_sample_counts)
} else if format_aspect.contains(crate::FormatAspects::STENCIL) {
limits
.framebuffer_stencil_sample_counts
.min(limits.sampled_image_stencil_sample_counts)
} else {
let first_aspect = format_aspect
.iter()
.next()
.expect("All texture should at least one aspect")
.map();
// We should never get depth or stencil out of this, due to the above.
assert_ne!(first_aspect, wgt::TextureAspect::DepthOnly);
assert_ne!(first_aspect, wgt::TextureAspect::StencilOnly);
match format.sample_type(Some(first_aspect), None).unwrap() {
wgt::TextureSampleType::Float { .. } => limits
.framebuffer_color_sample_counts
.min(limits.sampled_image_color_sample_counts),
wgt::TextureSampleType::Sint | wgt::TextureSampleType::Uint => {
limits.sampled_image_integer_sample_counts
}
_ => unreachable!(),
}
};
flags.set(
Tfc::MULTISAMPLE_X2,
sample_flags.contains(vk::SampleCountFlags::TYPE_2),
);
flags.set(
Tfc::MULTISAMPLE_X4,
sample_flags.contains(vk::SampleCountFlags::TYPE_4),
);
flags.set(
Tfc::MULTISAMPLE_X8,
sample_flags.contains(vk::SampleCountFlags::TYPE_8),
);
flags.set(
Tfc::MULTISAMPLE_X16,
sample_flags.contains(vk::SampleCountFlags::TYPE_16),
);
flags
}
unsafe fn surface_capabilities(
&self,
surface: &super::Surface,
) -> Option<crate::SurfaceCapabilities> {
if !self.private_caps.can_present {
return None;
}
let queue_family_index = 0; //TODO
{
profiling::scope!("vkGetPhysicalDeviceSurfaceSupportKHR");
match unsafe {
surface.functor.get_physical_device_surface_support(
self.raw,
queue_family_index,
surface.raw,
)
} {
Ok(true) => (),
Ok(false) => return None,
Err(e) => {
log::error!("get_physical_device_surface_support: {e}");
return None;
}
}
}
let caps = {
profiling::scope!("vkGetPhysicalDeviceSurfaceCapabilitiesKHR");
match unsafe {
surface
.functor
.get_physical_device_surface_capabilities(self.raw, surface.raw)
} {
Ok(caps) => caps,
Err(e) => {
log::error!("get_physical_device_surface_capabilities: {e}");
return None;
}
}
};
// If image count is 0, the support number of images is unlimited.
let max_image_count = if caps.max_image_count == 0 {
!0
} else {
caps.max_image_count
};
// `0xFFFFFFFF` indicates that the extent depends on the created swapchain.
let current_extent = if caps.current_extent.width != !0 && caps.current_extent.height != !0
{
Some(wgt::Extent3d {
width: caps.current_extent.width,
height: caps.current_extent.height,
depth_or_array_layers: 1,
})
} else {
None
};
let raw_present_modes = {
profiling::scope!("vkGetPhysicalDeviceSurfacePresentModesKHR");
match unsafe {
surface
.functor
.get_physical_device_surface_present_modes(self.raw, surface.raw)
} {
Ok(present_modes) => present_modes,
Err(e) => {
log::error!("get_physical_device_surface_present_modes: {e}");
// Per definition of `SurfaceCapabilities`, there must be at least one present mode.
return None;
}
}
};
let raw_surface_formats = {
profiling::scope!("vkGetPhysicalDeviceSurfaceFormatsKHR");
match unsafe {
surface
.functor
.get_physical_device_surface_formats(self.raw, surface.raw)
} {
Ok(formats) => formats,
Err(e) => {
log::error!("get_physical_device_surface_formats: {e}");
// Per definition of `SurfaceCapabilities`, there must be at least one present format.
return None;
}
}
};
let formats = raw_surface_formats
.into_iter()
.filter_map(conv::map_vk_surface_formats)
.collect();
Some(crate::SurfaceCapabilities {
formats,
// TODO: Right now we're always trunkating the swap chain
// (presumably - we're actually setting the min image count which isn't necessarily the swap chain size)
// Instead, we should use extensions when available to wait in present.
// See https://github.com/gfx-rs/wgpu/issues/2869
maximum_frame_latency: (caps.min_image_count - 1)..=(max_image_count - 1), // Note this can't underflow since both `min_image_count` is at least one and we already patched `max_image_count`.
current_extent,
usage: conv::map_vk_image_usage(caps.supported_usage_flags),
present_modes: raw_present_modes
.into_iter()
.flat_map(conv::map_vk_present_mode)
.collect(),
composite_alpha_modes: conv::map_vk_composite_alpha(caps.supported_composite_alpha),
})
}
unsafe fn get_presentation_timestamp(&self) -> wgt::PresentationTimestamp {
// VK_GOOGLE_display_timing is the only way to get presentation
// timestamps on vulkan right now and it is only ever available
// on android and linux. This includes mac, but there's no alternative
// on mac, so this is fine.
#[cfg(unix)]
{
let mut timespec = libc::timespec {
tv_sec: 0,
tv_nsec: 0,
};
unsafe {
libc::clock_gettime(libc::CLOCK_MONOTONIC, &mut timespec);
}
wgt::PresentationTimestamp(
timespec.tv_sec as u128 * 1_000_000_000 + timespec.tv_nsec as u128,
)
}
#[cfg(not(unix))]
{
wgt::PresentationTimestamp::INVALID_TIMESTAMP
}
}
}
fn is_format_16bit_norm_supported(instance: &ash::Instance, phd: vk::PhysicalDevice) -> bool {
let tiling = vk::ImageTiling::OPTIMAL;
let features = vk::FormatFeatureFlags::SAMPLED_IMAGE
| vk::FormatFeatureFlags::STORAGE_IMAGE
| vk::FormatFeatureFlags::TRANSFER_SRC
| vk::FormatFeatureFlags::TRANSFER_DST;
let r16unorm = supports_format(instance, phd, vk::Format::R16_UNORM, tiling, features);
let r16snorm = supports_format(instance, phd, vk::Format::R16_SNORM, tiling, features);
let rg16unorm = supports_format(instance, phd, vk::Format::R16G16_UNORM, tiling, features);
let rg16snorm = supports_format(instance, phd, vk::Format::R16G16_SNORM, tiling, features);
let rgba16unorm = supports_format(
instance,
phd,
vk::Format::R16G16B16A16_UNORM,
tiling,
features,
);
let rgba16snorm = supports_format(
instance,
phd,
vk::Format::R16G16B16A16_SNORM,
tiling,
features,
);
r16unorm && r16snorm && rg16unorm && rg16snorm && rgba16unorm && rgba16snorm
}
fn is_float32_filterable_supported(instance: &ash::Instance, phd: vk::PhysicalDevice) -> bool {
let tiling = vk::ImageTiling::OPTIMAL;
let features = vk::FormatFeatureFlags::SAMPLED_IMAGE_FILTER_LINEAR;
let r_float = supports_format(instance, phd, vk::Format::R32_SFLOAT, tiling, features);
let rg_float = supports_format(instance, phd, vk::Format::R32G32_SFLOAT, tiling, features);
let rgba_float = supports_format(
instance,
phd,
vk::Format::R32G32B32A32_SFLOAT,
tiling,
features,
);
r_float && rg_float && rgba_float
}
fn supports_format(
instance: &ash::Instance,
phd: vk::PhysicalDevice,
format: vk::Format,
tiling: vk::ImageTiling,
features: vk::FormatFeatureFlags,
) -> bool {
let properties = unsafe { instance.get_physical_device_format_properties(phd, format) };
match tiling {
vk::ImageTiling::LINEAR => properties.linear_tiling_features.contains(features),
vk::ImageTiling::OPTIMAL => properties.optimal_tiling_features.contains(features),
_ => false,
}
}
fn supports_astc_3d(instance: &ash::Instance, phd: vk::PhysicalDevice) -> bool {
let mut supports = true;
let astc_formats = [
vk::Format::ASTC_4X4_UNORM_BLOCK,
vk::Format::ASTC_4X4_SRGB_BLOCK,
vk::Format::ASTC_5X4_UNORM_BLOCK,
vk::Format::ASTC_5X4_SRGB_BLOCK,
vk::Format::ASTC_5X5_UNORM_BLOCK,
vk::Format::ASTC_5X5_SRGB_BLOCK,
vk::Format::ASTC_6X5_UNORM_BLOCK,
vk::Format::ASTC_6X5_SRGB_BLOCK,
vk::Format::ASTC_6X6_UNORM_BLOCK,
vk::Format::ASTC_6X6_SRGB_BLOCK,
vk::Format::ASTC_8X5_UNORM_BLOCK,
vk::Format::ASTC_8X5_SRGB_BLOCK,
vk::Format::ASTC_8X6_UNORM_BLOCK,
vk::Format::ASTC_8X6_SRGB_BLOCK,
vk::Format::ASTC_8X8_UNORM_BLOCK,
vk::Format::ASTC_8X8_SRGB_BLOCK,
vk::Format::ASTC_10X5_UNORM_BLOCK,
vk::Format::ASTC_10X5_SRGB_BLOCK,
vk::Format::ASTC_10X6_UNORM_BLOCK,
vk::Format::ASTC_10X6_SRGB_BLOCK,
vk::Format::ASTC_10X8_UNORM_BLOCK,
vk::Format::ASTC_10X8_SRGB_BLOCK,
vk::Format::ASTC_10X10_UNORM_BLOCK,
vk::Format::ASTC_10X10_SRGB_BLOCK,
vk::Format::ASTC_12X10_UNORM_BLOCK,
vk::Format::ASTC_12X10_SRGB_BLOCK,
vk::Format::ASTC_12X12_UNORM_BLOCK,
vk::Format::ASTC_12X12_SRGB_BLOCK,
];
for &format in &astc_formats {
let result = unsafe {
instance.get_physical_device_image_format_properties(
phd,
format,
vk::ImageType::TYPE_3D,
vk::ImageTiling::OPTIMAL,
vk::ImageUsageFlags::SAMPLED,
vk::ImageCreateFlags::empty(),
)
};
if result.is_err() {
supports = false;
break;
}
}
supports
}
fn supports_bgra8unorm_storage(
instance: &ash::Instance,
phd: vk::PhysicalDevice,
device_api_version: u32,
) -> bool {
// See https://github.com/KhronosGroup/Vulkan-Docs/issues/2027#issuecomment-1380608011
// This check gates the function call and structures used below.
// TODO: check for (`VK_KHR_get_physical_device_properties2` or VK1.1) and (`VK_KHR_format_feature_flags2` or VK1.3).
// Right now we only check for VK1.3.
if device_api_version < vk::API_VERSION_1_3 {
return false;
}
unsafe {
let mut properties3 = vk::FormatProperties3::default();
let mut properties2 = vk::FormatProperties2::default().push_next(&mut properties3);
instance.get_physical_device_format_properties2(
phd,
vk::Format::B8G8R8A8_UNORM,
&mut properties2,
);
let features2 = properties2.format_properties.optimal_tiling_features;
let features3 = properties3.optimal_tiling_features;
features2.contains(vk::FormatFeatureFlags::STORAGE_IMAGE)
&& features3.contains(vk::FormatFeatureFlags2::STORAGE_WRITE_WITHOUT_FORMAT)
}
}
// For https://github.com/gfx-rs/wgpu/issues/4599
// Intel iGPUs with outdated drivers can break rendering if `VK_EXT_robustness2` is used.
// Driver version 31.0.101.2115 works, but there's probably an earlier functional version.
fn is_intel_igpu_outdated_for_robustness2(
props: vk::PhysicalDeviceProperties,
driver: Option<vk::PhysicalDeviceDriverPropertiesKHR>,
) -> bool {
const DRIVER_VERSION_WORKING: u32 = (101 << 14) | 2115; // X.X.101.2115
let is_outdated = props.vendor_id == crate::auxil::db::intel::VENDOR
&& props.device_type == vk::PhysicalDeviceType::INTEGRATED_GPU
&& props.driver_version < DRIVER_VERSION_WORKING
&& driver
.map(|driver| driver.driver_id == vk::DriverId::INTEL_PROPRIETARY_WINDOWS)
.unwrap_or_default();
if is_outdated {
log::warn!(
"Disabling robustBufferAccess2 and robustImageAccess2: IntegratedGpu Intel Driver is outdated. Found with version 0x{:X}, less than the known good version 0x{:X} (31.0.101.2115)",
props.driver_version,
DRIVER_VERSION_WORKING
);
}
is_outdated
}
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