diff options
Diffstat (limited to 'third_party/rust/wgpu-hal/src/dx12/adapter.rs')
| -rw-r--r-- | third_party/rust/wgpu-hal/src/dx12/adapter.rs | 99 |
1 files changed, 72 insertions, 27 deletions
diff --git a/third_party/rust/wgpu-hal/src/dx12/adapter.rs b/third_party/rust/wgpu-hal/src/dx12/adapter.rs index b417a88a6f..faf25cc852 100644 --- a/third_party/rust/wgpu-hal/src/dx12/adapter.rs +++ b/third_party/rust/wgpu-hal/src/dx12/adapter.rs @@ -115,18 +115,6 @@ impl super::Adapter { ) }); - let mut shader_model_support: d3d12_ty::D3D12_FEATURE_DATA_SHADER_MODEL = - d3d12_ty::D3D12_FEATURE_DATA_SHADER_MODEL { - HighestShaderModel: d3d12_ty::D3D_SHADER_MODEL_6_0, - }; - assert_eq!(0, unsafe { - device.CheckFeatureSupport( - d3d12_ty::D3D12_FEATURE_SHADER_MODEL, - &mut shader_model_support as *mut _ as *mut _, - mem::size_of::<d3d12_ty::D3D12_FEATURE_DATA_SHADER_MODEL>() as _, - ) - }); - let mut workarounds = super::Workarounds::default(); let info = wgt::AdapterInfo { @@ -181,6 +169,53 @@ impl super::Adapter { hr == 0 && features3.CastingFullyTypedFormatSupported != 0 }; + let shader_model = if dxc_container.is_none() { + naga::back::hlsl::ShaderModel::V5_1 + } else { + let mut versions = [ + crate::dx12::types::D3D_SHADER_MODEL_6_7, + crate::dx12::types::D3D_SHADER_MODEL_6_6, + crate::dx12::types::D3D_SHADER_MODEL_6_5, + crate::dx12::types::D3D_SHADER_MODEL_6_4, + crate::dx12::types::D3D_SHADER_MODEL_6_3, + crate::dx12::types::D3D_SHADER_MODEL_6_2, + crate::dx12::types::D3D_SHADER_MODEL_6_1, + crate::dx12::types::D3D_SHADER_MODEL_6_0, + crate::dx12::types::D3D_SHADER_MODEL_5_1, + ] + .iter(); + match loop { + if let Some(&sm) = versions.next() { + let mut sm = crate::dx12::types::D3D12_FEATURE_DATA_SHADER_MODEL { + HighestShaderModel: sm, + }; + if 0 == unsafe { + device.CheckFeatureSupport( + 7, // D3D12_FEATURE_SHADER_MODEL + &mut sm as *mut _ as *mut _, + mem::size_of::<crate::dx12::types::D3D12_FEATURE_DATA_SHADER_MODEL>() + as _, + ) + } { + break sm.HighestShaderModel; + } + } else { + break crate::dx12::types::D3D_SHADER_MODEL_5_1; + } + } { + crate::dx12::types::D3D_SHADER_MODEL_5_1 => naga::back::hlsl::ShaderModel::V5_1, + crate::dx12::types::D3D_SHADER_MODEL_6_0 => naga::back::hlsl::ShaderModel::V6_0, + crate::dx12::types::D3D_SHADER_MODEL_6_1 => naga::back::hlsl::ShaderModel::V6_1, + crate::dx12::types::D3D_SHADER_MODEL_6_2 => naga::back::hlsl::ShaderModel::V6_2, + crate::dx12::types::D3D_SHADER_MODEL_6_3 => naga::back::hlsl::ShaderModel::V6_3, + crate::dx12::types::D3D_SHADER_MODEL_6_4 => naga::back::hlsl::ShaderModel::V6_4, + crate::dx12::types::D3D_SHADER_MODEL_6_5 => naga::back::hlsl::ShaderModel::V6_5, + crate::dx12::types::D3D_SHADER_MODEL_6_6 => naga::back::hlsl::ShaderModel::V6_6, + crate::dx12::types::D3D_SHADER_MODEL_6_7 => naga::back::hlsl::ShaderModel::V6_7, + _ => unreachable!(), + } + }; + let private_caps = super::PrivateCapabilities { instance_flags, heterogeneous_resource_heaps: options.ResourceHeapTier @@ -196,6 +231,7 @@ impl super::Adapter { casting_fully_typed_format_supported, // See https://github.com/gfx-rs/wgpu/issues/3552 suballocation_supported: !info.name.contains("Iris(R) Xe"), + shader_model, }; // Theoretically vram limited, but in practice 2^20 is the limit @@ -273,7 +309,7 @@ impl super::Adapter { 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_support.HighestShaderModel >= d3d12_ty::D3D_SHADER_MODEL_5_1, + shader_model >= naga::back::hlsl::ShaderModel::V5_1, ); let bgra8unorm_storage_supported = { @@ -295,21 +331,28 @@ impl super::Adapter { bgra8unorm_storage_supported, ); - // we must be using DXC because uint64_t was added with Shader Model 6 - // and FXC only supports up to 5.1 - let int64_shader_ops_supported = dxc_container.is_some() && { - let mut features1: d3d12_ty::D3D12_FEATURE_DATA_D3D12_OPTIONS1 = - unsafe { mem::zeroed() }; - let hr = unsafe { - device.CheckFeatureSupport( - d3d12_ty::D3D12_FEATURE_D3D12_OPTIONS1, - &mut features1 as *mut _ as *mut _, - mem::size_of::<d3d12_ty::D3D12_FEATURE_DATA_D3D12_OPTIONS1>() as _, - ) - }; - hr == 0 && features1.Int64ShaderOps != 0 + let mut features1: d3d12_ty::D3D12_FEATURE_DATA_D3D12_OPTIONS1 = unsafe { mem::zeroed() }; + let hr = unsafe { + device.CheckFeatureSupport( + d3d12_ty::D3D12_FEATURE_D3D12_OPTIONS1, + &mut features1 as *mut _ as *mut _, + mem::size_of::<d3d12_ty::D3D12_FEATURE_DATA_D3D12_OPTIONS1>() as _, + ) }; - features.set(wgt::Features::SHADER_INT64, int64_shader_ops_supported); + + features.set( + wgt::Features::SHADER_INT64, + shader_model >= naga::back::hlsl::ShaderModel::V6_0 + && hr == 0 + && features1.Int64ShaderOps != 0, + ); + + features.set( + wgt::Features::SUBGROUP, + shader_model >= naga::back::hlsl::ShaderModel::V6_0 + && hr == 0 + && features1.WaveOps != 0, + ); // float32-filterable should always be available on d3d12 features.set(wgt::Features::FLOAT32_FILTERABLE, true); @@ -377,6 +420,8 @@ impl super::Adapter { .min(crate::MAX_VERTEX_BUFFERS as u32), max_vertex_attributes: d3d12_ty::D3D12_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT, max_vertex_buffer_array_stride: d3d12_ty::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: |