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use std::{
mem::{size_of, size_of_val},
ptr,
sync::Arc,
thread,
};
use parking_lot::Mutex;
use windows::{
core::Interface as _,
Win32::{
Graphics::{Direct3D, Direct3D12, Dxgi},
UI::WindowsAndMessaging,
},
};
use super::D3D12Lib;
use crate::{
auxil::{
self,
dxgi::{factory::DxgiAdapter, result::HResult},
},
dx12::{shader_compilation, SurfaceTarget},
};
impl Drop for super::Adapter {
fn drop(&mut self) {
// Debug tracking alive objects
if !thread::panicking()
&& self
.private_caps
.instance_flags
.contains(wgt::InstanceFlags::VALIDATION)
{
unsafe {
self.report_live_objects();
}
}
}
}
impl super::Adapter {
pub unsafe fn report_live_objects(&self) {
if let Ok(debug_device) = self.raw.cast::<Direct3D12::ID3D12DebugDevice>() {
unsafe {
debug_device.ReportLiveDeviceObjects(
Direct3D12::D3D12_RLDO_SUMMARY | Direct3D12::D3D12_RLDO_IGNORE_INTERNAL,
)
}
.unwrap()
}
}
pub fn raw_adapter(&self) -> &DxgiAdapter {
&self.raw
}
pub(super) fn expose(
adapter: DxgiAdapter,
library: &Arc<D3D12Lib>,
instance_flags: wgt::InstanceFlags,
dxc_container: Option<Arc<shader_compilation::DxcContainer>>,
) -> Option<crate::ExposedAdapter<super::Api>> {
// Create the device so that we can get the capabilities.
let device = {
profiling::scope!("ID3D12Device::create_device");
library
.create_device(&adapter, Direct3D::D3D_FEATURE_LEVEL_11_0)
.ok()??
};
profiling::scope!("feature queries");
// Detect the highest supported feature level.
let d3d_feature_level = [
Direct3D::D3D_FEATURE_LEVEL_12_1,
Direct3D::D3D_FEATURE_LEVEL_12_0,
Direct3D::D3D_FEATURE_LEVEL_11_1,
Direct3D::D3D_FEATURE_LEVEL_11_0,
];
let mut device_levels = Direct3D12::D3D12_FEATURE_DATA_FEATURE_LEVELS {
NumFeatureLevels: d3d_feature_level.len() as u32,
pFeatureLevelsRequested: d3d_feature_level.as_ptr().cast(),
MaxSupportedFeatureLevel: Default::default(),
};
unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_FEATURE_LEVELS,
<*mut _>::cast(&mut device_levels),
size_of_val(&device_levels) as u32,
)
}
.unwrap();
let max_feature_level = device_levels.MaxSupportedFeatureLevel;
// We have found a possible adapter.
// Acquire the device information.
let desc = unsafe { adapter.GetDesc2() }.unwrap();
let device_name = auxil::dxgi::conv::map_adapter_name(desc.Description);
let mut features_architecture = Direct3D12::D3D12_FEATURE_DATA_ARCHITECTURE::default();
unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_ARCHITECTURE,
<*mut _>::cast(&mut features_architecture),
size_of_val(&features_architecture) as u32,
)
}
.unwrap();
let mut workarounds = super::Workarounds::default();
let info = wgt::AdapterInfo {
backend: wgt::Backend::Dx12,
name: device_name,
vendor: desc.VendorId,
device: desc.DeviceId,
device_type: if Dxgi::DXGI_ADAPTER_FLAG(desc.Flags as i32)
.contains(Dxgi::DXGI_ADAPTER_FLAG_SOFTWARE)
{
workarounds.avoid_cpu_descriptor_overwrites = true;
wgt::DeviceType::Cpu
} else if features_architecture.UMA.as_bool() {
wgt::DeviceType::IntegratedGpu
} else {
wgt::DeviceType::DiscreteGpu
},
driver: {
if let Ok(i) = unsafe { adapter.CheckInterfaceSupport(&Dxgi::IDXGIDevice::IID) } {
const MASK: i64 = 0xFFFF;
format!(
"{}.{}.{}.{}",
i >> 48,
(i >> 32) & MASK,
(i >> 16) & MASK,
i & MASK
)
} else {
String::new()
}
},
driver_info: String::new(),
};
let mut options = Direct3D12::D3D12_FEATURE_DATA_D3D12_OPTIONS::default();
unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_D3D12_OPTIONS,
<*mut _>::cast(&mut options),
size_of_val(&options) as u32,
)
}
.unwrap();
let _depth_bounds_test_supported = {
let mut features2 = Direct3D12::D3D12_FEATURE_DATA_D3D12_OPTIONS2::default();
unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_D3D12_OPTIONS2,
<*mut _>::cast(&mut features2),
size_of_val(&features2) as u32,
)
}
.is_ok()
&& features2.DepthBoundsTestSupported.as_bool()
};
let casting_fully_typed_format_supported = {
let mut features3 = Direct3D12::D3D12_FEATURE_DATA_D3D12_OPTIONS3::default();
unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_D3D12_OPTIONS3,
<*mut _>::cast(&mut features3),
size_of_val(&features3) as u32,
)
}
.is_ok()
&& features3.CastingFullyTypedFormatSupported.as_bool()
};
let heap_create_not_zeroed = {
// For D3D12_HEAP_FLAG_CREATE_NOT_ZEROED we just need to
// make sure that options7 can be queried. See also:
let mut features7 = Direct3D12::D3D12_FEATURE_DATA_D3D12_OPTIONS7::default();
unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_D3D12_OPTIONS7,
<*mut _>::cast(&mut features7),
size_of_val(&features7) as u32,
)
}
.is_ok()
};
let shader_model = if dxc_container.is_none() {
naga::back::hlsl::ShaderModel::V5_1
} else {
let mut versions = [
Direct3D12::D3D_SHADER_MODEL_6_7,
Direct3D12::D3D_SHADER_MODEL_6_6,
Direct3D12::D3D_SHADER_MODEL_6_5,
Direct3D12::D3D_SHADER_MODEL_6_4,
Direct3D12::D3D_SHADER_MODEL_6_3,
Direct3D12::D3D_SHADER_MODEL_6_2,
Direct3D12::D3D_SHADER_MODEL_6_1,
Direct3D12::D3D_SHADER_MODEL_6_0,
]
.iter();
let highest_shader_model = loop {
if let Some(&sm) = versions.next() {
let mut sm = Direct3D12::D3D12_FEATURE_DATA_SHADER_MODEL {
HighestShaderModel: sm,
};
if unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_SHADER_MODEL,
<*mut _>::cast(&mut sm),
size_of_val(&sm) as u32,
)
}
.is_ok()
{
break sm.HighestShaderModel;
}
} else {
break Direct3D12::D3D_SHADER_MODEL_5_1;
}
};
match highest_shader_model {
Direct3D12::D3D_SHADER_MODEL_5_1 => return None, // don't expose this adapter if it doesn't support DXIL
Direct3D12::D3D_SHADER_MODEL_6_0 => naga::back::hlsl::ShaderModel::V6_0,
Direct3D12::D3D_SHADER_MODEL_6_1 => naga::back::hlsl::ShaderModel::V6_1,
Direct3D12::D3D_SHADER_MODEL_6_2 => naga::back::hlsl::ShaderModel::V6_2,
Direct3D12::D3D_SHADER_MODEL_6_3 => naga::back::hlsl::ShaderModel::V6_3,
Direct3D12::D3D_SHADER_MODEL_6_4 => naga::back::hlsl::ShaderModel::V6_4,
Direct3D12::D3D_SHADER_MODEL_6_5 => naga::back::hlsl::ShaderModel::V6_5,
Direct3D12::D3D_SHADER_MODEL_6_6 => naga::back::hlsl::ShaderModel::V6_6,
Direct3D12::D3D_SHADER_MODEL_6_7 => naga::back::hlsl::ShaderModel::V6_7,
_ => unreachable!(),
}
};
let private_caps = super::PrivateCapabilities {
instance_flags,
heterogeneous_resource_heaps: options.ResourceHeapTier
!= Direct3D12::D3D12_RESOURCE_HEAP_TIER_1,
memory_architecture: if features_architecture.UMA.as_bool() {
super::MemoryArchitecture::Unified {
cache_coherent: features_architecture.CacheCoherentUMA.as_bool(),
}
} else {
super::MemoryArchitecture::NonUnified
},
heap_create_not_zeroed,
casting_fully_typed_format_supported,
suballocation_supported: !info.name.contains("Iris(R) Xe"),
shader_model,
};
// Theoretically vram limited, but in practice 2^20 is the limit
let tier3_practical_descriptor_limit = 1 << 20;
let (full_heap_count, uav_count) = match options.ResourceBindingTier {
Direct3D12::D3D12_RESOURCE_BINDING_TIER_1 => {
let uav_count = match max_feature_level {
Direct3D::D3D_FEATURE_LEVEL_11_0 => 8,
_ => 64,
};
(
Direct3D12::D3D12_MAX_SHADER_VISIBLE_DESCRIPTOR_HEAP_SIZE_TIER_1,
uav_count,
)
}
Direct3D12::D3D12_RESOURCE_BINDING_TIER_2 => (
Direct3D12::D3D12_MAX_SHADER_VISIBLE_DESCRIPTOR_HEAP_SIZE_TIER_2,
64,
),
Direct3D12::D3D12_RESOURCE_BINDING_TIER_3 => (
tier3_practical_descriptor_limit,
tier3_practical_descriptor_limit,
),
other => {
log::warn!("Unknown resource binding tier {:?}", other);
(
Direct3D12::D3D12_MAX_SHADER_VISIBLE_DESCRIPTOR_HEAP_SIZE_TIER_1,
8,
)
}
};
// these should always be available on d3d12
let mut features = wgt::Features::empty()
| wgt::Features::DEPTH_CLIP_CONTROL
| wgt::Features::DEPTH32FLOAT_STENCIL8
| wgt::Features::INDIRECT_FIRST_INSTANCE
| wgt::Features::MAPPABLE_PRIMARY_BUFFERS
| wgt::Features::MULTI_DRAW_INDIRECT
| wgt::Features::MULTI_DRAW_INDIRECT_COUNT
| wgt::Features::ADDRESS_MODE_CLAMP_TO_BORDER
| wgt::Features::ADDRESS_MODE_CLAMP_TO_ZERO
| wgt::Features::POLYGON_MODE_LINE
| wgt::Features::TEXTURE_ADAPTER_SPECIFIC_FORMAT_FEATURES
| wgt::Features::TIMESTAMP_QUERY
| wgt::Features::TIMESTAMP_QUERY_INSIDE_ENCODERS
| wgt::Features::TIMESTAMP_QUERY_INSIDE_PASSES
| wgt::Features::TEXTURE_COMPRESSION_BC
| wgt::Features::TEXTURE_COMPRESSION_BC_SLICED_3D
| wgt::Features::CLEAR_TEXTURE
| wgt::Features::TEXTURE_FORMAT_16BIT_NORM
| wgt::Features::PUSH_CONSTANTS
| wgt::Features::SHADER_PRIMITIVE_INDEX
| wgt::Features::RG11B10UFLOAT_RENDERABLE
| wgt::Features::DUAL_SOURCE_BLENDING
| wgt::Features::TEXTURE_FORMAT_NV12
| wgt::Features::FLOAT32_FILTERABLE;
//TODO: in order to expose this, we need to run a compute shader
// that extract the necessary statistics out of the D3D12 result.
// Alternatively, we could allocate a buffer for the query set,
// write the results there, and issue a bunch of copy commands.
//| wgt::Features::PIPELINE_STATISTICS_QUERY
if max_feature_level.0 >= Direct3D::D3D_FEATURE_LEVEL_11_1.0 {
features |= wgt::Features::VERTEX_WRITABLE_STORAGE;
}
features.set(
wgt::Features::CONSERVATIVE_RASTERIZATION,
options.ConservativeRasterizationTier
!= Direct3D12::D3D12_CONSERVATIVE_RASTERIZATION_TIER_NOT_SUPPORTED,
);
features.set(
wgt::Features::TEXTURE_BINDING_ARRAY
| wgt::Features::UNIFORM_BUFFER_AND_STORAGE_TEXTURE_ARRAY_NON_UNIFORM_INDEXING
| wgt::Features::SAMPLED_TEXTURE_AND_STORAGE_BUFFER_ARRAY_NON_UNIFORM_INDEXING,
shader_model >= naga::back::hlsl::ShaderModel::V5_1,
);
let bgra8unorm_storage_supported = {
let mut bgra8unorm_info = Direct3D12::D3D12_FEATURE_DATA_FORMAT_SUPPORT {
Format: Dxgi::Common::DXGI_FORMAT_B8G8R8A8_UNORM,
..Default::default()
};
let hr = unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_FORMAT_SUPPORT,
<*mut _>::cast(&mut bgra8unorm_info),
size_of_val(&bgra8unorm_info) as u32,
)
};
hr.is_ok()
&& bgra8unorm_info
.Support2
.contains(Direct3D12::D3D12_FORMAT_SUPPORT2_UAV_TYPED_STORE)
};
features.set(
wgt::Features::BGRA8UNORM_STORAGE,
bgra8unorm_storage_supported,
);
let mut features1 = Direct3D12::D3D12_FEATURE_DATA_D3D12_OPTIONS1::default();
let hr = unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_D3D12_OPTIONS1,
<*mut _>::cast(&mut features1),
size_of_val(&features1) as u32,
)
};
features.set(
wgt::Features::SHADER_INT64,
shader_model >= naga::back::hlsl::ShaderModel::V6_0
&& hr.is_ok()
&& features1.Int64ShaderOps.as_bool(),
);
features.set(
wgt::Features::SUBGROUP,
shader_model >= naga::back::hlsl::ShaderModel::V6_0
&& hr.is_ok()
&& features1.WaveOps.as_bool(),
);
let atomic_int64_on_typed_resource_supported = {
let mut features9 = Direct3D12::D3D12_FEATURE_DATA_D3D12_OPTIONS9::default();
unsafe {
device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_D3D12_OPTIONS9,
<*mut _>::cast(&mut features9),
size_of_val(&features9) as u32,
)
}
.is_ok()
&& features9.AtomicInt64OnGroupSharedSupported.as_bool()
&& features9.AtomicInt64OnTypedResourceSupported.as_bool()
};
features.set(
wgt::Features::SHADER_INT64_ATOMIC_ALL_OPS | wgt::Features::SHADER_INT64_ATOMIC_MIN_MAX,
atomic_int64_on_typed_resource_supported,
);
// TODO: Determine if IPresentationManager is supported
let presentation_timer = auxil::dxgi::time::PresentationTimer::new_dxgi();
let base = wgt::Limits::default();
let mut downlevel = wgt::DownlevelCapabilities::default();
downlevel.flags -=
wgt::DownlevelFlags::VERTEX_AND_INSTANCE_INDEX_RESPECTS_RESPECTIVE_FIRST_VALUE_IN_INDIRECT_DRAW;
let max_color_attachments = 8;
// TODO: determine this programmatically if possible.
let max_color_attachment_bytes_per_sample = 64;
Some(crate::ExposedAdapter {
adapter: super::Adapter {
raw: adapter,
device,
library: Arc::clone(library),
private_caps,
presentation_timer,
workarounds,
dxc_container,
},
info,
features,
capabilities: crate::Capabilities {
limits: wgt::Limits {
max_texture_dimension_1d: Direct3D12::D3D12_REQ_TEXTURE1D_U_DIMENSION,
max_texture_dimension_2d: Direct3D12::D3D12_REQ_TEXTURE2D_U_OR_V_DIMENSION
.min(Direct3D12::D3D12_REQ_TEXTURECUBE_DIMENSION),
max_texture_dimension_3d: Direct3D12::D3D12_REQ_TEXTURE3D_U_V_OR_W_DIMENSION,
max_texture_array_layers: Direct3D12::D3D12_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION,
max_bind_groups: crate::MAX_BIND_GROUPS as u32,
max_bindings_per_bind_group: 65535,
// dynamic offsets take a root constant, so we expose the minimum here
max_dynamic_uniform_buffers_per_pipeline_layout: base
.max_dynamic_uniform_buffers_per_pipeline_layout,
max_dynamic_storage_buffers_per_pipeline_layout: base
.max_dynamic_storage_buffers_per_pipeline_layout,
max_sampled_textures_per_shader_stage: match options.ResourceBindingTier {
Direct3D12::D3D12_RESOURCE_BINDING_TIER_1 => 128,
_ => full_heap_count,
},
max_samplers_per_shader_stage: match options.ResourceBindingTier {
Direct3D12::D3D12_RESOURCE_BINDING_TIER_1 => 16,
_ => Direct3D12::D3D12_MAX_SHADER_VISIBLE_SAMPLER_HEAP_SIZE,
},
// these both account towards `uav_count`, but we can't express the limit as as sum
// of the two, so we divide it by 4 to account for the worst case scenario
// (2 shader stages, with both using 16 storage textures and 16 storage buffers)
max_storage_buffers_per_shader_stage: uav_count / 4,
max_storage_textures_per_shader_stage: uav_count / 4,
max_uniform_buffers_per_shader_stage: full_heap_count,
max_uniform_buffer_binding_size:
Direct3D12::D3D12_REQ_CONSTANT_BUFFER_ELEMENT_COUNT * 16,
max_storage_buffer_binding_size: auxil::MAX_I32_BINDING_SIZE,
max_vertex_buffers: Direct3D12::D3D12_VS_INPUT_REGISTER_COUNT
.min(crate::MAX_VERTEX_BUFFERS as u32),
max_vertex_attributes: Direct3D12::D3D12_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT,
max_vertex_buffer_array_stride: Direct3D12::D3D12_SO_BUFFER_MAX_STRIDE_IN_BYTES,
min_subgroup_size: 4, // Not using `features1.WaveLaneCountMin` as it is unreliable
max_subgroup_size: 128,
// The push constants are part of the root signature which
// has a limit of 64 DWORDS (256 bytes), but other resources
// also share the root signature:
//
// - push constants consume a `DWORD` for each `4 bytes` of data
// - If a bind group has buffers it will consume a `DWORD`
// for the descriptor table
// - If a bind group has samplers it will consume a `DWORD`
// for the descriptor table
// - Each dynamic buffer will consume `2 DWORDs` for the
// root descriptor
// - The special constants buffer count as constants
//
// Since we can't know beforehand all root signatures that
// will be created, the max size to be used for push
// constants needs to be set to a reasonable number instead.
//
max_push_constant_size: 128,
min_uniform_buffer_offset_alignment:
Direct3D12::D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT,
min_storage_buffer_offset_alignment: 4,
max_inter_stage_shader_components: base.max_inter_stage_shader_components,
max_color_attachments,
max_color_attachment_bytes_per_sample,
max_compute_workgroup_storage_size: base.max_compute_workgroup_storage_size, //TODO?
max_compute_invocations_per_workgroup:
Direct3D12::D3D12_CS_4_X_THREAD_GROUP_MAX_THREADS_PER_GROUP,
max_compute_workgroup_size_x: Direct3D12::D3D12_CS_THREAD_GROUP_MAX_X,
max_compute_workgroup_size_y: Direct3D12::D3D12_CS_THREAD_GROUP_MAX_Y,
max_compute_workgroup_size_z: Direct3D12::D3D12_CS_THREAD_GROUP_MAX_Z,
max_compute_workgroups_per_dimension:
Direct3D12::D3D12_CS_DISPATCH_MAX_THREAD_GROUPS_PER_DIMENSION,
// Dx12 does not expose a maximum buffer size in the API.
// This limit is chosen to avoid potential issues with drivers should they internally
// store buffer sizes using 32 bit ints (a situation we have already encountered with vulkan).
max_buffer_size: i32::MAX as u64,
max_non_sampler_bindings: 1_000_000,
},
alignments: crate::Alignments {
buffer_copy_offset: wgt::BufferSize::new(
Direct3D12::D3D12_TEXTURE_DATA_PLACEMENT_ALIGNMENT as u64,
)
.unwrap(),
buffer_copy_pitch: wgt::BufferSize::new(
Direct3D12::D3D12_TEXTURE_DATA_PITCH_ALIGNMENT as u64,
)
.unwrap(),
// Direct3D correctly bounds-checks all array accesses:
uniform_bounds_check_alignment: wgt::BufferSize::new(1).unwrap(),
raw_tlas_instance_size: 0,
ray_tracing_scratch_buffer_alignment: 0,
},
downlevel,
},
})
}
}
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> {
let queue: Direct3D12::ID3D12CommandQueue = {
profiling::scope!("ID3D12Device::CreateCommandQueue");
unsafe {
self.device
.CreateCommandQueue(&Direct3D12::D3D12_COMMAND_QUEUE_DESC {
Type: Direct3D12::D3D12_COMMAND_LIST_TYPE_DIRECT,
Priority: Direct3D12::D3D12_COMMAND_QUEUE_PRIORITY_NORMAL.0,
Flags: Direct3D12::D3D12_COMMAND_QUEUE_FLAG_NONE,
NodeMask: 0,
})
}
.into_device_result("Queue creation")?
};
let device = super::Device::new(
self.device.clone(),
queue.clone(),
limits,
memory_hints,
self.private_caps,
&self.library,
self.dxc_container.clone(),
)?;
Ok(crate::OpenDevice {
device,
queue: super::Queue {
raw: queue,
temp_lists: Mutex::new(Vec::new()),
},
})
}
unsafe fn texture_format_capabilities(
&self,
format: wgt::TextureFormat,
) -> crate::TextureFormatCapabilities {
use crate::TextureFormatCapabilities as Tfc;
let raw_format = match auxil::dxgi::conv::map_texture_format_failable(format) {
Some(f) => f,
None => return Tfc::empty(),
};
let srv_uav_format = if format.is_combined_depth_stencil_format() {
auxil::dxgi::conv::map_texture_format_for_srv_uav(
format,
// use the depth aspect here as opposed to stencil since it has more capabilities
crate::FormatAspects::DEPTH,
)
} else {
auxil::dxgi::conv::map_texture_format_for_srv_uav(
format,
crate::FormatAspects::from(format),
)
}
.unwrap();
let mut data = Direct3D12::D3D12_FEATURE_DATA_FORMAT_SUPPORT {
Format: raw_format,
..Default::default()
};
unsafe {
self.device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_FORMAT_SUPPORT,
<*mut _>::cast(&mut data),
size_of_val(&data) as u32,
)
}
.unwrap();
// Because we use a different format for SRV and UAV views of depth textures, we need to check
// the features that use SRV/UAVs using the no-depth format.
let mut data_srv_uav = Direct3D12::D3D12_FEATURE_DATA_FORMAT_SUPPORT {
Format: srv_uav_format,
Support1: Direct3D12::D3D12_FORMAT_SUPPORT1_NONE,
Support2: Direct3D12::D3D12_FORMAT_SUPPORT2_NONE,
};
if raw_format != srv_uav_format {
// Only-recheck if we're using a different format
unsafe {
self.device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_FORMAT_SUPPORT,
ptr::addr_of_mut!(data_srv_uav).cast(),
size_of::<Direct3D12::D3D12_FEATURE_DATA_FORMAT_SUPPORT>() as u32,
)
}
.unwrap();
} else {
// Same format, just copy over.
data_srv_uav = data;
}
let mut caps = Tfc::COPY_SRC | Tfc::COPY_DST;
// Cannot use the contains() helper, and windows-rs doesn't provide a .intersect() helper
let is_texture = (data.Support1
& (Direct3D12::D3D12_FORMAT_SUPPORT1_TEXTURE1D
| Direct3D12::D3D12_FORMAT_SUPPORT1_TEXTURE2D
| Direct3D12::D3D12_FORMAT_SUPPORT1_TEXTURE3D
| Direct3D12::D3D12_FORMAT_SUPPORT1_TEXTURECUBE))
.0
!= 0;
// SRVs use srv_uav_format
caps.set(
Tfc::SAMPLED,
is_texture
&& data_srv_uav
.Support1
.contains(Direct3D12::D3D12_FORMAT_SUPPORT1_SHADER_LOAD),
);
caps.set(
Tfc::SAMPLED_LINEAR,
data_srv_uav
.Support1
.contains(Direct3D12::D3D12_FORMAT_SUPPORT1_SHADER_SAMPLE),
);
caps.set(
Tfc::COLOR_ATTACHMENT,
data.Support1
.contains(Direct3D12::D3D12_FORMAT_SUPPORT1_RENDER_TARGET),
);
caps.set(
Tfc::COLOR_ATTACHMENT_BLEND,
data.Support1
.contains(Direct3D12::D3D12_FORMAT_SUPPORT1_BLENDABLE),
);
caps.set(
Tfc::DEPTH_STENCIL_ATTACHMENT,
data.Support1
.contains(Direct3D12::D3D12_FORMAT_SUPPORT1_DEPTH_STENCIL),
);
// UAVs use srv_uav_format
caps.set(
Tfc::STORAGE_READ_ONLY,
data_srv_uav
.Support2
.contains(Direct3D12::D3D12_FORMAT_SUPPORT2_UAV_TYPED_LOAD),
);
caps.set(
Tfc::STORAGE_WRITE_ONLY,
data_srv_uav
.Support2
.contains(Direct3D12::D3D12_FORMAT_SUPPORT2_UAV_TYPED_STORE),
);
caps.set(
Tfc::STORAGE_READ_WRITE,
caps.contains(Tfc::STORAGE_READ_ONLY | Tfc::STORAGE_WRITE_ONLY),
);
// We load via UAV/SRV so use srv_uav_format
let no_msaa_load = caps.contains(Tfc::SAMPLED)
&& !data_srv_uav
.Support1
.contains(Direct3D12::D3D12_FORMAT_SUPPORT1_MULTISAMPLE_LOAD);
let no_msaa_target = (data.Support1
& (Direct3D12::D3D12_FORMAT_SUPPORT1_RENDER_TARGET
| Direct3D12::D3D12_FORMAT_SUPPORT1_DEPTH_STENCIL))
.0
!= 0
&& !data
.Support1
.contains(Direct3D12::D3D12_FORMAT_SUPPORT1_MULTISAMPLE_RENDERTARGET);
caps.set(
Tfc::MULTISAMPLE_RESOLVE,
data.Support1
.contains(Direct3D12::D3D12_FORMAT_SUPPORT1_MULTISAMPLE_RESOLVE),
);
let mut ms_levels = Direct3D12::D3D12_FEATURE_DATA_MULTISAMPLE_QUALITY_LEVELS {
Format: raw_format,
SampleCount: 0,
Flags: Direct3D12::D3D12_MULTISAMPLE_QUALITY_LEVELS_FLAG_NONE,
NumQualityLevels: 0,
};
let mut set_sample_count = |sc: u32, tfc: Tfc| {
ms_levels.SampleCount = sc;
if unsafe {
self.device.CheckFeatureSupport(
Direct3D12::D3D12_FEATURE_MULTISAMPLE_QUALITY_LEVELS,
<*mut _>::cast(&mut ms_levels),
size_of_val(&ms_levels) as u32,
)
}
.is_ok()
&& ms_levels.NumQualityLevels != 0
{
caps.set(tfc, !no_msaa_load && !no_msaa_target);
}
};
set_sample_count(2, Tfc::MULTISAMPLE_X2);
set_sample_count(4, Tfc::MULTISAMPLE_X4);
set_sample_count(8, Tfc::MULTISAMPLE_X8);
set_sample_count(16, Tfc::MULTISAMPLE_X16);
caps
}
unsafe fn surface_capabilities(
&self,
surface: &super::Surface,
) -> Option<crate::SurfaceCapabilities> {
let current_extent = {
match surface.target {
SurfaceTarget::WndHandle(wnd_handle) => {
let mut rect = Default::default();
if unsafe { WindowsAndMessaging::GetClientRect(wnd_handle, &mut rect) }.is_ok()
{
Some(wgt::Extent3d {
width: (rect.right - rect.left) as u32,
height: (rect.bottom - rect.top) as u32,
depth_or_array_layers: 1,
})
} else {
log::warn!("Unable to get the window client rect");
None
}
}
SurfaceTarget::Visual(_)
| SurfaceTarget::SurfaceHandle(_)
| SurfaceTarget::SwapChainPanel(_) => None,
}
};
let mut present_modes = vec![wgt::PresentMode::Mailbox, wgt::PresentMode::Fifo];
if surface.supports_allow_tearing {
present_modes.push(wgt::PresentMode::Immediate);
}
Some(crate::SurfaceCapabilities {
formats: vec![
wgt::TextureFormat::Bgra8UnormSrgb,
wgt::TextureFormat::Bgra8Unorm,
wgt::TextureFormat::Rgba8UnormSrgb,
wgt::TextureFormat::Rgba8Unorm,
wgt::TextureFormat::Rgb10a2Unorm,
wgt::TextureFormat::Rgba16Float,
],
// See https://learn.microsoft.com/en-us/windows/win32/api/dxgi/nf-dxgi-idxgidevice1-setmaximumframelatency
maximum_frame_latency: 1..=16,
current_extent,
usage: crate::TextureUses::COLOR_TARGET
| crate::TextureUses::COPY_SRC
| crate::TextureUses::COPY_DST,
present_modes,
composite_alpha_modes: vec![wgt::CompositeAlphaMode::Opaque],
})
}
unsafe fn get_presentation_timestamp(&self) -> wgt::PresentationTimestamp {
wgt::PresentationTimestamp(self.presentation_timer.get_timestamp_ns())
}
}