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Ray tracing shaders prep #1737

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Ray tracing shaders prep #1737

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2bb1cba
Raytracing: Add requirements to Raytracing Storage Classes
bwrsandman Oct 24, 2021
432edc2
vulkano-shaders: Prepare support for rt shaders
bwrsandman Apr 14, 2020
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24 changes: 18 additions & 6 deletions vulkano-shaders/src/codegen.rs
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Expand Up @@ -736,12 +736,24 @@ fn storage_class_requirement(storage_class: &StorageClass) -> &'static [DeviceRe
StorageClass::StorageBuffer => &[DeviceRequirement::Extension(
"khr_storage_buffer_storage_class",
)],
StorageClass::CallableDataKHR => todo!(),
StorageClass::IncomingCallableDataKHR => todo!(),
StorageClass::RayPayloadKHR => todo!(),
StorageClass::HitAttributeKHR => todo!(),
StorageClass::IncomingRayPayloadKHR => todo!(),
StorageClass::ShaderRecordBufferKHR => todo!(),
StorageClass::CallableDataKHR => &[DeviceRequirement::Extension(
"khr_ray_tracing",
)]
StorageClass::IncomingCallableDataKHR => &[DeviceRequirement::Extension(
"khr_ray_tracing",
)]
StorageClass::RayPayloadKHR => &[DeviceRequirement::Extension(
"khr_ray_tracing",
)]
StorageClass::HitAttributeKHR => &[DeviceRequirement::Extension(
"khr_ray_tracing",
)]
StorageClass::IncomingRayPayloadKHR => &[DeviceRequirement::Extension(
"khr_ray_tracing",
)]
StorageClass::ShaderRecordBufferKHR => &[DeviceRequirement::Extension(
"khr_ray_tracing",
)]
StorageClass::PhysicalStorageBuffer => todo!(),
StorageClass::CodeSectionINTEL => todo!(),
}
Expand Down
56 changes: 32 additions & 24 deletions vulkano-shaders/src/entry_point.rs
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Expand Up @@ -107,17 +107,16 @@ pub(super) fn write_entry_point(
};

let (ty, f_call) = {
if let ExecutionModel::GLCompute = *execution {
(
quote! { ::vulkano::pipeline::shader::ComputeEntryPoint },
quote! { compute_entry_point(
::std::ffi::CStr::from_ptr(NAME.as_ptr() as *const _),
#descriptor_set_layout_descs,
#push_constant_ranges,
<#spec_consts_struct>::descriptors(),
)},
)
} else {
if let ExecutionModel::Kernel = *execution {
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match execution instead of many ifs would be clearer IMO.

panic!("Kernels are not supported");
} else if match *execution {
ExecutionModel::Vertex => true,
ExecutionModel::TessellationControl => true,
ExecutionModel::TessellationEvaluation => true,
ExecutionModel::Geometry => true,
ExecutionModel::Fragment => true,
_ => false,
} {
let entry_ty = match *execution {
ExecutionModel::Vertex => {
quote! { ::vulkano::pipeline::shader::GraphicsShaderType::Vertex }
Expand Down Expand Up @@ -166,19 +165,7 @@ pub(super) fn write_entry_point(
quote! { ::vulkano::pipeline::shader::GraphicsShaderType::Fragment }
}

ExecutionModel::GLCompute => unreachable!(),

ExecutionModel::Kernel
| ExecutionModel::TaskNV
| ExecutionModel::MeshNV
| ExecutionModel::RayGenerationKHR
| ExecutionModel::IntersectionKHR
| ExecutionModel::AnyHitKHR
| ExecutionModel::ClosestHitKHR
| ExecutionModel::MissKHR
| ExecutionModel::CallableKHR => {
panic!("Shaders with {:?} are not supported", execution)
}
_ => unreachable!(),
};

let ty = quote! { ::vulkano::pipeline::shader::GraphicsEntryPoint };
Expand All @@ -195,6 +182,27 @@ pub(super) fn write_entry_point(
};

(ty, f_call)
} else if let ExecutionModel::GLCompute = *execution {
(
quote! { ::vulkano::pipeline::shader::ComputeEntryPoint },
quote! { compute_entry_point(
::std::ffi::CStr::from_ptr(NAME.as_ptr() as *const _),
#descriptor_set_layout_descs,
#push_constant_ranges,
<#spec_consts_struct>::descriptors(),
)},
)
} else if match *execution {
ExecutionModel::RayGenerationKHR => true,
ExecutionModel::IntersectionKHR => true,
ExecutionModel::AnyHitKHR => true,
ExecutionModel::ClosestHitKHR => true,
ExecutionModel::MissKHR => true,
ExecutionModel::CallableKHR => true,
} {
panic!("Raytracing Shaders are not supported")
} else {
panic!("Shaders with {:?} are not supported", execution)
}
};

Expand Down
15 changes: 14 additions & 1 deletion vulkano-shaders/src/lib.rs
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Expand Up @@ -112,6 +112,12 @@
//! * `tess_ctrl`
//! * `tess_eval`
//! * `compute`
//! * `ray_generation`
//! * `intersection`
//! * `any_hit`
//! * `closest_hit`
//! * `miss`
//! * `callable`
//!
//! For details on what these shader types mean, [see Vulkano's documentation][pipeline].
//!
Expand Down Expand Up @@ -410,7 +416,14 @@ impl Parse for MacroInput {
"tess_ctrl" => ShaderKind::TessControl,
"tess_eval" => ShaderKind::TessEvaluation,
"compute" => ShaderKind::Compute,
_ => panic!("Unexpected shader type, valid values: vertex, fragment, geometry, tess_ctrl, tess_eval, compute")
"ray_generation" => ShaderKind::RayGeneration,
"intersection" => ShaderKind::Intersection,
"any_hit" => ShaderKind::AnyHit,
"closest_hit" => ShaderKind::ClosestHit,
"miss" => ShaderKind::Miss,
"callable" => ShaderKind::Callable,
_ => panic!("Unexpected shader type, valid values: vertex, fragment, geometry, tess_ctrl, tess_eval, compute, \
ray_generation, intersection, any_hit, closest_hit, miss, callable")
};

output.0 = Some(ty);
Expand Down